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UX-M33 SERVICE MANUAL MICRO COMPONENT SYSTEM UX-M33 Area suffix E - Continental Europe EN - Northern EuropeMICROCOMPONENTSYSTEMUX- M33STANDBY OPEN /ON /CLOSE DISPLAY REMAIN MODE /RDS MODE STANDBY/ON TIMER ON/OFF INTRO/RDS SEARCH SET TUNER CD/RANDOM /BAND TAPE RANDOM BAND CD TUNER TAPE REC PROGRAM PROGRAM PRESET SEARCH/TUNING REPEAT PHONES REMAIN VOLUME /RDS MODE SLEEP PRE UP PRE EQ REC PLAY/PAUSE STOP/CLEAR /HBS INTRO REPEAT /RDS SEARCH TIMER /PRE DOWN DISPLAY PRE EQ MODE /HBS + MUTING BEAT CUT VOLUME EJECT Ð RM-SUXM3R REMOTE CONTROLFULLLOGICDECKCD SYNCHRO RECORDING SP-UXM3 CA-UXM33 SP-UXM3 Co...
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UX-M33 SERVICE MANUAL MICRO COMPONENT SYSTEM UX-M33 Area suffix E - Continental Europe EN - Northern Europe

MICROCOMPONENTSYSTEMUX- M33STANDBY OPEN /ON /CLOSE DISPLAY REMAIN MODE /RDS MODE STANDBY/ON TIMER ON/OFF INTRO/RDS

SEARCH SET TUNER

CD/RANDOM /BAND TAPE RANDOM BAND CD TUNER TAPE

REC

PROGRAM PROGRAM PRESET SEARCH/TUNING

REPEAT PHONES

REMAIN VOLUME /RDS MODE SLEEP PRE UP PRE EQ REC PLAY/PAUSE STOP/CLEAR /HBS INTRO REPEAT /RDS SEARCH TIMER /PRE DOWN DISPLAY PRE EQ MODE /HBS + MUTING BEAT CUT VOLUME

EJECT Ð

RM-SUXM3R REMOTE CONTROLFULLLOGICDECKCD SYNCHRO RECORDING

SP-UXM3 CA-UXM33 SP-UXM3 Contents Safety precautions 1-2 Maintenance of laser pickup 1-19 Preventing static electricity 1-3 Replacement of laser pickup 1-19 Important for laser products 1-4 Trouble shooting 1-20 Disassembly method 1-5 Description of major ICs 1-21 Adjustment method 1-15 Wiring connections 1-35 Flow of functional operation

until TOC read 1-18

No.21187

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

Dec. 2002

, 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only. 2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. 3. Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. 4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling. 5. Leakage currnet check (Electrical shock hazard testing) After re-assembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock. Do not use a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.). Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good earth ground. AC VOLTMETER Measure the AC voltage across the resistor with the AC (Having 1000 voltmeter. ohms/volts, Move the resistor connection to each exposed metal part, or more sensitivity) particularly any exposed metal part having a return path to the chassis, and meausre the AC voltage across the resistor. 0.15 F AC TYPE Now, reverse the plug in the AC outlet and repeat each Place this measurement. Voltage measured any must not exceed 0.75 V probe on each exposed AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). 1500 10W metal part. Good earth ground ! 1. This equipment has been designed and manufactured to meet international safety standards. Burrs formed during molding may 2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained. be left over on some parts of the 3. Repairs must be made in accordance with the relevant safety standards. chassis. Therefore, pay attention to 4. It is essential that safety critical components are replaced by approved parts. such burrs in the case of 5. If mains voltage selector is provided, check setting for local voltage. preforming repair of this system. In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. (This regulation does not correspond to J and C version.) 1-2,

Preventing static electricity

1. Grounding to prevent damage by static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 2. About the earth processing for the destruction prevention by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players. Be careful to use proper grounding in the area where repairs are being performed. 2-1 Ground the workbench Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it. 2-2 Ground yourself Use an anti-static wrist strap to release any static electricity built up in your body. (caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate 3. Handling the optical pickup 1. In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) 2.Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily destroy the laser diode. 4. Handling the traverse unit (optical pickup) 1. Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. 2.Remove solder of the short land on the card wire after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector. 3.Handle the card wire carefully as it may break when subjected to strong force. 4.It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it. 5. Attention when traverse unit is decomposed Connector Short land *Please refer to "Disassembly method" in the text for the CD pickup unit. Apply solder to the short land before the card wire is disconnected from the connector on the CD pickup unit. (If the card wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.) In the assembly, be sure to remove solder from the short land after connecting the card wire. CD pickup unit 1-3,

Important for laser products

1.CLASS 1 LASER PRODUCT 5.CAUTION : If safety switches malfunction, the laser is able 2.DANGER : Invisible laser radiation when open and inter to function. lock failed or defeated. Avoid direct exposure to beam. 6.CAUTION : Use of controls, adjustments or performance of 3.CAUTION : There are no serviceable parts inside the procedures other than those specified herein may result in Laser Unit. Do not disassemble the Laser Unit. Replace hazardous radiation exposure. the complete Laser Unit if it malfunctions. 4.CAUTION : The compact disc player uses invisible ! CAUTION Please use enough caution not to laserradiation and is equipped with safety switches see the beam directly or touch it whichprevent emission of radiation when the drawer is in case of an adjustment or operation open and the safety interlocks have failed or are de check. feated. It is dangerous to defeat the safety switches. VARNING : Osynlig laserstrålning är denna del är öppnad ADVARSEL : Usynlig laserstråling ved åbning , når och spårren är urkopplad. Betrakta ej strålen. sikkerhedsafbrydere er ude af funktion. Undgå VARO : Avattaessa ja suojalukitus ohitettaessa olet udsættelse for stråling. alttiina näkymättömälle lasersäteilylle.Älä katso ADVARSEL : Usynlig laserstråling ved åpning,når säteeseen. sikkerhetsbryteren er avslott. unngå utsettelse for stråling.

REPRODUCTION AND POSITION OF LABELS WARNING LABEL

CLASS 1 LASER PRODUCT 1-4,

Disassembly method

Fuse(F902)2A 250V Power board Replacement of the fuses and power amplifier IC Fuse(F903) 1A 250V

Replacing the fuses (See Fig. 1.)

Remove the left side plate according to its disassembly method (see Figs. 5 and 6). Fuses are located inside the left side plate. [Caution] Be sure to replace the required fuses with designated ones. Fuse(F901) 1A 250V Fig.1

Replacing the power amplifier IC on

the main board (See Fig. 2.) Soldered part a Main board Remove the main board according to its disassembly method (see Figs. 17 and 18). Power amplifier IC 1. In order to replace the power amplifier IC, remove (IC401) the solder from the soldered part a on the back Heat sink side of the main board. 2.Remove the power amplifier IC together the heat A sink. Fig.2 3.Remove the two screws A that attach the power amplifier IC onto the heat sink. 1-5,

Removing the right side plate

(See Figs. 3 and 4.)

B C (Long)

1.From the right side of the main body, remove the Right side three screws B and three screws C retaining the plate right side plate. (See Fig.3.) 2.Slide the right side plate toward the rear (in the direction of the arrow 1) until the claw b at the C (Long) back of the right side plate is hooked by the bottom case, and then lift the right side plate upward (in the direction of the arrow 2) to remove it. (See Fig.4.)

B Fig.3 Removing the left side plate

(See Figs. 5 and 6.) 1.From the left side of the main body, remove the three screws B and three screws C retaining the left side plate. (See Fig.5.) 2 Right side 2.Slide the left side plate toward the rear (in the plate direction of the arrow 3) until the claw c at the 1 back of the left side plate is hooked by the bottom case, and then lift the left side plate upward (in the direction of the arrow 4) to remove it. (See Fig.6.) Bottom case Claw b Fig.4

C (Long) B

Left side plate

C Left side 4

(Long) plate

B Claw c Bottom case

Fig.5 Fig.6 1-6,

Removing the top cabinet D (To be loosened)

(See Figs. 7 and 8.) Remove the left and right side plates. Top cabinet 1.From the back side of the main body, loosen the two screws D retaining the top cabinet. (See Fig.7.) Rear cabinet 2.Lift the rear part of the top cabinet to remove it. (See Fig.8.)

Removing the front cabinet assembly

(See Figs. 9 to 11.) Remove the left and right side plates. Remove the top cabinet. Fig.7 1.From the left side of the main body, remove the tie Lift the rear band bundling the wires. (See Fig.9.) part to remove. 2.Disconnect the wire from the connector on the D cassette switch board. (See Fig.9.) 3.Remove the screw E retaining the holder on the earphone board. (See Fig.9.) 4.Disconnect the wire from the connector CN201 on the main board. (See Fig.9.) 5.Disconnect the wires from the two connectors CN607 and CN608 on the CD & MCU board. Fig.8 (See Figs.9 and 10.) 6.Remove the four screws F and the two screws G CD mechanism CN201 assembly CN608retaining the CD mechanism assembly from the left and right. (See Figs.9 and 10.) 7.Remove the screw H retaining the front cabinet CD & MCU board F assembly from the bottom side of the main body. (See Fig.11.)

G

8.While opening the hooks d to the left and right of E the lower part of the front cabinet assembly (in the direction of the arrows 1), slide the front cabinet Earphone assembly toward the front (in the direction of the board arrow 2). (See Fig.11.) Holder [Note] After assembly, apply a locking agent Tie band to the screws E, F and G. Connector on the CD mechanism cassette switch assembly board

F Fig.9 G Bottom case

Hook d Front cabinet assembly CN607 H CD & MCU board Hook d Fig.10 Fig.11 1-7,

Removing the CD mechanism

assembly (See Figs. 12 to 14.) CN701 CN601 Remove the left and right side plates. CD & MCU board CN603 CN602 Remove the top cabinet. Remove the front cabinet assembly. 1.From the top side of the main body, disconnect the wires from the four connectors CN601, CN602, CN603 and CN701 on the CD & MCU board. (See Fig.12.) 2.From the left side of the main body, remove the tie band bundling the wires. (See Fig.13.) CD mechanism assembly 3.Disconnect the wire from the connector CN902 on Fig.12 the power board. (See Fig.13.) CD & MCU board 4.Loosen the screw J retaining the main board. (See Fig.13.) CD rear mounting bracket 5.From the left and right sides of the main body, remove the four screws K retaining the CD rear K mounting bracket. (See Fig.13.) J 6.Slide the CD mechanism assembly toward the front (in the direction of the arrow) and remove it from the locking board support of the main board. CN902 (See Fig.14.) Tie band Power board Fig.13 CD & MCU board

K

Locking board support Main board Fig.14 1-8,

Removing the power board Locking board support Locking

(See Figs. 15 and 16.) Power transformer CN901 board support Remove the left and right side plates. Main board 1.Disconnect the wire from the connector CN901 on the power board. 2.Remove the two screws L retaining the bottom case. 3.Remove the power board by pinching the two Power board locking board supports retaining the power board Bottom case L using radio pliers, etc. Fig.15 Radio pliers, etc. Power board Locking board support Bottom case Fig.16

Removing the main board

(See Figs. 17 and 18.) FM antenna terminal Remove the left and right side plates. Rear cabinet Remove the top cabinet. N Remove the front cabinet assembly. Remove the CD mechanism assembly. Speaker terminal 1.From the back side of the main body, remove the M two screws M retaining the speaker terminal of the main board. (See Fig.17.) 2.Remove the two screws N retaining the FM antenna terminal of the main board. (See Fig.17.) 3.From the top side of the main body, remove the Fig.17 screw P retaining the heat sink of the main board. (See Fig.18.) FM antenna terminal Heat sink Main board CN901 4.Disconnect the wire from the connector CN901 on the power board. (See Fig.18.) 5.Slide the main board toward the front to remove it P from the bottom case. (See Fig.18.) [Note] After assembly, apply a locking agent to the screw P. Bottom case Power board Fig.18 1-9, Remove the left and right side plates. Remove the top cabinet. Remove the front cabinet assembly.

Removing the key board (See Fig. 19.)

Front cabinet assembly Key board Remove the ten screws Q retaining the key board.

Removing the cassette mechanism

assembly (See Fig.19.) Q Q 1.Remove the two screws R and the two screws S retaining the cassette mechanism assembly. Latching 2.Remove the tie band bundling the REC/PB head cam assembly wire. RU Cassette [Note] After assembly, apply a locking agent mechanismassembly to the screws R and S. T Damping gear holder S

Removing the damp gear (See Fig. 19.)

Remove the screw T retaining the damping gear REC/PB head wireDamp gear holder and take out the damp gear.

S Tie band

[Note] After assembly, apply a locking agent to the screw T. Fig.19

Removing the latching cam assembly

(See Fig.19.) Remove the two screws U retaining the latching cam assembly and remove the latching cam assembly. [Note] After assembly, apply a locking agent to the screw U.

Removing the cassette door cover

(See Fig.20.) [Note] Use the following procedure to remove Technical door only the cassette door cover. This procedure does not require the Claw e removal of exterior parts such as the side panels. Claw f 1.Open the cassette door. 2.Slide the cassette door cover in the direction of the arrow and disengage the two claws e and the Cassette door cover two claws f on the left and right of the cassette Fig.20 door cover from the technical door. 1-10,

Removing the technical door

(See Figs. 21 and 22.) Remove the cassette mechanism assembly. Front cabinet assembly Remove the cassette door cover. Technical door 1.Open the technical door, disengage the cassette torsion spring hooked across the front of the front Cassette torsion spring cabinet assembly and the technical door in the Claw g outward direction, and remove it from the claw g. (See Fig.21.) 2.From the back side of the front cabinet assembly, remove the two screws V retaining the logic deck bracket. (See Fig.22.) Disengage the cassette torsion spring so that it comes to the front of the 3.While pushing the arm section h of the technical claw g. door in the direction of the arrow, remove the shaft section i of the technical door from the front Fig.21 cabinet assembly. (See Fig.22.) 4.While pushing the arm section j of the technical door in the direction of the arrow, remove the shaft Front cabinet assembly section k of the technical door from the front Arm section h cabinet assembly. (See Fig.22.) Technical door 5.Take out the technical door from the back side of Shaft section i Arm section j the front cabinet assembly. Shaft section k [Caution] In the assembly, be sure to put the cassette torsion spring around Cassette torsion spring Logic deck bracket the shaft section i before attaching V the technical door. Fig.22 [Note] After assembly, apply a locking agent to the screw V. 1-11, Remove the left and right side plates. Locking board support CD & MCU board A Remove the top cabinet. Remove the front cabinet assembly. CN702 Remove the CD mechanism assembly.

Removing the CD & MCU board

(See Figs. 1 and 2.) 1.From the bottom side of the CD mechanism assembly, remove the two screws A retaining the CD & MCU board. (See Fig.1.) 2.Disengage the two locking board supports retaining the CD & MCU board. (See Fig.1.) Locking board support

A

3.Disconnect the wires from the two connectors Fig.1 CN702 and CN703 on the CD & MCU board. (See Figs.1 and 2.) CN704 CD & MCU board CD pickup unit 4.Lift the CD & MCU board and attach solder to the short land part a on the CD pickup assembly. (See Fig.2.) 5.Disconnect the card wire from the connector CN704 on the CD & MCU board, and take out the CD & MCU board. (See Fig.2.) CN703 [Cautions] Be sure to solder the short land CD pickup part a on the CD pickup unit before assembly disconnecting the card wire from the CD pickup unit. (See Fig. 2.) CD mechanism assembly If the card wire is disconnected without attaching solder, the CD pickup may be destroyed by static electricity. In the assembly, be sure to remove Short land part a solder from the short land part a Fig.2 after connecting the card wire. [Note] After assembly, apply a locking agent to the screw A.

Removing the CD pickup assembly CD pickup assembly Damper(Blue)

(See Fig. 3.) Damper(Gray) Remove the CD & MCU board. 1.From the back side of the CD mechanism assembly, remove the four screws B retaining theBBCD pickup assembly. 2.Take out the CD pickup assembly. [Note] When removing or replacing the dampers, note their colors and be sure to attach them in their correct positions. Damper(Gray) Damper(Blue) Fig.3 1-12,

Removing the tray motor CD mechanism assembly

(See Figs. 4 to 7.) Claw b Clamper assembly Remove the CD & MCU board. 1.From the top side of the CD mechanism assembly, open up the claws b and c at the left and right of the clamper assembly and lift the assembly to remove it. (See Fig.4.) 2.Push the section d of the elevator in the direction of the arrow and lower the CD pickup assembly. (See Fig.5.) 3.Pull out the tray. (See Fig.5.) Claw c Claw c 4.While opening up the claws e at the left and right Fig.4 Tray of the tray in the directions of the arrows, remove the tray. (See Fig.6.) 5.While pushing the claw f on the CD mechanism assembly downwards, slide the elevator fully in the direction of the arrow. (See Fig.7.) 6.Lift the gear slightly, remove the transparent cover. (See Fig.7.) 7.Remove the belt from the tray motor pulley. (See Fig.7.) CD pickup assembly Section d 8.Remove the two screws C retaining the tray motor Fig.5 and remove it from the bottom side of the CD mechanism assembly. (See Fig.7.) Claw e Tray [Notes] Take care not to attach grease on the belt. After attaching the tray motor in the assembly, apply a locking agent to the screws C. Claw e Fig.6 CD mechanism assembly Claw f Tray motor pulley Gear Tray motor Transparent cover

C Belt

Fig.7 1-13,

Replacing the CD pickup unit Clamper assembly Front cabinet assembly

Claw b (See Figs. 8 to 11.) [Note] Use the following procedure to replace only the CD pickup unit. 1.Remove the left and right side plates. (See Figs. 3 to 6 of "Main body section" on page 1-7.) 2.Remove the top cabinet. (See Figs. 7 and 8 of "Main body section" on page 1-8.) 3.From the top side of the main body, open up the Claw c Claw c claws b and c on the left and right of the clamper assembly in the direction of the arrows and lift the Fig.8 Front cabinet assembly assembly to remove it. (See Fig.8.) 4.Push the section d on the elevator of the CD mechanism assembly and lower the CD pickup assembly. (See Fig.9.) 5.Pull out the tray. (See Fig.10.) 6.Remove the slit washer retaining the feed middle gear, and take out the feed middle gear. (See Fig.10.) 7.Loosen the two screws D retaining the shaft. (See Fig.10.) Section d 8.Turn the CD pickup unit upside down and apply Fig.9 solder to the short land part a. (See Fig.11.) D (To be loosened) Slit washer CD pickup assembly Tray 9.Disconnect the card wire from the CD pickup unit and replace the unit. (See Fig.11.) [Cautions] Be sure to solder the short land part a on the CD pickup unit before disconnecting the card wire from the CD pickup unit. (See Fig. 11.) If the card wire is disconnected without attaching solder, the CD pickup may be destroyed by static Feed middle gear D (To be loosened) electricity. In the assembly, be sure to remove Fig.10 solder from the short land part a after connecting the card wire. Card wire [Note] Removing the CD pickup unit involves the removal of the sliding spring. Sliding spring In the assembly, be sure to attach the spring in the correct orientation before attaching the CD pickup unit. (See Fig. 11.) Short land part a Fig.11 1-14,

Adjustment method Measuring instructions required for Measuring instruments

adjustment Radio section 1. AM signal generator FM 1kHz, 22.5kHz deviation 2. FM signal generator FM STEREO : 1kHz, 67.5kHz deviation 3. Inter mediate frequency sweep generator pilot signal 7.5kHz 4. FM stereo signal generator AM : 1kHz, 30% modulation 5. Low-frequency oscillator Reference output : (oscillation frequency 50Hz-20kHz, 0dB output Speaker output 0dBs(2.8V) 8 ohm with 600 ohm impedance) H.phone output -10dBs(0.245V) 32 ohm 6. Attenuator (600 ohm impedance) 7. Electronic voltmeter Cassette amplifier section 8. Distortion meter Reference output : 9. Torque gauge (cassette for CTG-N) Speaker output 0dBs(2.8V) 8 ohm 10. Wow & flutter meter H.phone output -10dBs(0.245V) 32 ohm 11. Frequency counter meter 12. Test tape CD section VT712 : For tape speed and wow flutter CD test disc : CTS-1000 VT724 : For reference level VT702 : For playback frequency VT702 : For head azimuth adjustment 13. Blank tape TAPE : AC-225

Measurement conditions

Power supply voltage AC230V/50Hz 1-15,

Cassette amplifier section

Item Measuring condition Check and adjustment procedure Standard value Adjusting part Head azimuth Test tape: 1.Play back the test tape VT702 (8kHz). Output level: Head azimuth adjustment VT702 (8kHz) 2.Adjust the head azimuth adjusting screw so that the Within (+2dB-2dB) of adjusting screw Signal output terminal: phase difference between the R and L channels is maximum output (To be used only PHONES minimized at an output level that is within (+2dB-2dB) level after head (with 32 ohm load) of the maximum output level. After this adjustment, Phase difference R replacement) lock the head azimuth adjusting screw with screw and L channels: See Fig.1 on sealant to cover more than a half of the screw head. Minimum page 1-17. 3.When the head azimuth is maladjusted, correct it with the head azimuth adjusting screw. Tape speed and Test tape: 1.Play back the test tape VT712 (3kHz) by the end Tape speed wow/flutter check VT712 (3kHz) portion. and adjustment Signal output terminal: 2.Connect a frequency counter and check that it reads 2940 to 3090Hz Motor semifixed PHONES between 2940 and 3090Hz. If not, adjust the frequency resistor (with 32 ohm load) with the motor semifixed resistor. 3.Check that the wow/flutter is within 0.38% Within 0.38% See Fig.2 on (unweighted). (unweighted) page 1-17. Check only PB frequency Test tape: VT702 Play back the test tape VT702 while con-firming that Deviation between response check Signal output terminal: deviation between the 1kHz signal and 8kHz signal 1kHz and 8kHz: PHONES should be (0+3dB-6dB). (0+3dB-6dB) (with 32 ohm load) Bias frequency Tape: Normal Set the TUNER or CD function and with TAPE to record. L203, P207 check Signal output terminal: Check to see if the frequency at the measuring point See Fig.3 on Cassette REC./PLAY P207 is (68kHz+1kHz-1kHz) if not adjust L203 until the page 1-17. HEAD frequency counter indicates (68kHz+1kHz-1kHz). REC and PB Test tape: AC225 At TUNER, set the BAND to the FM position, and record Level difference frequency Signal input: the reference 1kHz signal and 8kHz signal alternately between REC and response FM22.5 DEV 60dBu repeatedly. While playing back the recorded signal differ PB: Within adjustment with emphasis from that of the 1kHz signal by within (0+3dB-6dB). (0+3dB-6dB) Signal output terminal:

PHONES

(with 32 ohm load)

Tuner section

Item Measuring condition Check and adjustment procedure Standard value Adjusting part AM IF adjustment Signal input: 1.Set the intermediate frequency sweep generator to AM Loop antenna 450kHz. Signal output: 2.Adjust the T101 for maximum and center output. T101 IC101 pin19 See Fig.3 on page 1-17. AM tracking Signal input: 1.Set the TUNER at 522kHz adjust the L101 until the 1.7V+0.1V-0.1V L101 adjustment Loop antenna test point P101 voltage at (1.7V+0.1V-0.1V). Signal output: 2.Set the TUNER at 1629kHz, check the test point P101 8.3V+0.3V-0.3V PHONES voltage at (8.3V+0.3V-0.3V). (with 32 ohm load) 3.Set the TUNER and S/G at 603kHz, adjust L102 for Maximum output L102 maximum output. 4.Set the TUNER and S/G at 1404kHz, adjust the TC101 Maximum output TC101 for maximum output. See Fig.3 on 5.Repeat the above steps 3 and 4. page 1-17. FM tracking Signal input: 1.Set the TUNER at 87.5MHz until the test point P102 1.7V+0.1V-0.1V P102 adjustment Dummy antenna voltage at (1.7V+0.1V-0.1V). FM ANT 2.Set the TUNER at 108MHz, check the test point P102 6.5V+0.3V-0.3V P102 FM GND voltage at (6.5V+0.3V-0.3V). See Fig.3 on Signal output: page 1-17.

PHONES

(with 32 ohm load) 1-16,

Location of adjusting parts Cassette mechanism section

Adjustment Head CASSETTE MOTOR - + max Tape Speed Adj. Azimuth adjustment screw

Fig.1 Head output signal Fig.2 Main board

JK101 FM ANT FP101 P102 TUNER PAD (FM VT) T101 (AM IF) CN101 IC101 AM ANT TA2099 (AM VT) L102 (AM RF) TC101 L101 (AM RF) (AM SOC) (BIAS FREQUENCY) L203 (BIAS FREQUENCY ADJ)

Fig.3

1-17,

Flow of functional operation until TOC read

Power ON Slider turns REST Confirm that the voltage at the pin5 of CN703 is SW ON. "H"/"L"/"H" Laser ON Check that the voltage at the pin10(LD) of CN704 is +1.35V. Caution Before connecting a measuring instrument to the measuring point, turn the power of the Focus start main unit to OFF. After performing a measurement and before disconnecting the measuring instrument, again turn the power of the main unit to OFF. (If a measuring instrument is disconnected while an electric current is being output to the FOK main unit, the pick up of the main unit will be damaged.) Turn on focus servo Disc spinning Check that the voltage at the pin1 and pin2 of CN703 is +0.65V. Radial_error scaling PLL Lock Turn on radial servo Read TOC Confirm the eye-pattern at the "RF" test point. 1-18,

Maintenance of laser pickup Replacement of laser pickup

(1) Cleaning the pick up lens Before you replace the pick up, please try to Turn off the power switch and,disconnect the clean the lens with a alcohol soaked cotton power cord from the AC OUTLET. swab. (2) Life of the laser diode When the life of the laser diode has expired, Replace the pickup with a normal one.(Refer the following symptoms will appear. to "Removing the CD pickup" on the previous page) The level of RF output (EFM output:ampli- tude of eye pattern) will below. Plug the power cord in,and turn the power on. At this time,check that the laser emits for Is the level of NO about 3 seconds and the objective lens moves RF OUT under Replace it. up and down. 1.25V 0.22Vp-p? Note: Do not observe the laser beam directly.

YES

Play a disc. O.K Check the eye-pattern at the "RF" test point. Finish. (3) Semi-fixed resistor on the APC PC board The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power. Since this adjustment should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor. If the laser power is lower than the specified value,the laser diode is almost worn out, and the laser pickup should be replaced. If the semi-fixed resistor would be adjusted when the pickup operates normally,the laser pickup may be damaged due to excessive current. 1-19,

Trouble shooting

Circuit Symptom Cause Remedy General No sound Speakers are not connected. Check the speaker connection. Wrong function is selected. Set switch to the proper position. Defective volume control Set the volume control to a proper sound level. Defective earphone jack Replace the earphone jack. Defect in IC601 Check voltages. Replace if necessary. Defect in IC301 Check voltages. Replace if necessary. AM No sound, weak sound Improper location of unit Rotate or reposition the unit. (Low sensitivity) Defect in IFT101 Check resistance, voltage, and current. Replace as needed. Defect AM antenna coil or oscilloscope coil Replace if necessary. Intermediate frequency tuning faulty Readjust (see "Adjustment method"). RF tracking faulty Readjust (see "Adjustment method"). Defective IC101 Check voltages. Replace if necessary. Defective IC102 Check voltages. Replace if necessary. Poor contact in antenna circuit Check resistance and resolder. FM No sound, weak sound FM antenna not connected Connect the built-in or external antenna. (Low sensitivity) Defective band selector switch Replace or repair the switch. Defective IC101 Check voltages. Replace if necessary. Defective IC102 Check voltages. Replace if necessary. Intermediate frequency tuning faulty Readjust (see "Adjustment method"). Poor contact in FM antenna circuit Resolder or repair as required. Tape No sound/recording, Dirty capstan or head Clean the capstan or head with alcohol. unsteady tape sound, weak sound Irregular cassette tape winding Replace tape. Defective IC202 Check voltages. Replace if necessary. Cassette erasure prevention tabs broken out Replace tape or cover tab openings with adhesive tape. CD Cannot read the table Disc is inserted upside down. Insert disc correctly. of content. No sound Disc is dirty. Wipe clean with a soft cloth. Disc is scratched. Use a new disc. Disc is seriously warped. Use a new disc. A non-standard disc has been inserted. Use only a brand name disc. Moisture has formed inside the CD deck. Wait about 20 to 30 minutes. Defective IC701 Check voltages. Replace if necessary. Defective IC704 Check voltages. Replace if necessary. Defective IC703 Check voltages. Replace if necessary. Defect in the CD pickup mechanism Replace as required. 1-20,

Description of major ICs TC9462F (IC701) : Digital servo single chip processor

1. Terminal layout 80 51 1 30 2. Pin function Pin No. Symbol I/O Function 1 TEST0 I Test mode terminal. Normally, keep at open. 2 HSO O Playback speed mode flag output terminal. (Not connect) 3 UHSO O UHSO HSO PLAYBACK SPEEDHHNormalHL2timesLH4timesLL- 4 EMPH O Subcode Q data emphasis flag output terminal. Emphasis ON at "H" level and OFF at "L" level. The output polarity can invert by command. (Not connect) 5 LRCK O Channel clock output terminal. (44.1kHz) L-ch at "L" level and R-ch at "H" level. The output polarity can invert by command. (Not connect) 6 VSS1 - Digital ground terminal. 7 BCK O Bit clock output terminal. (1.4112MHz) (Not connect) 8 AOUT O Audio data output terminal. (Not connect) 9 DOUT O Digital data output terminal. (Not connect) 10 MBOV O Buffer memory over signal output terminal. Over at "H" level. (Not connect) 11 IPF O Correction flag output terminal. At "H" level, AOUT output is made to correction impossibility by C2 correction processing. (Not connect) 12 SBOK O Subcode Q data CRCC check adjusting result output terminal. The adjusting result is OK at "H" level. (Not connect) 13 CLCK I/O SubcodePWdata readout clock input/output terminal. This terminal can select by command bit. (Not connect) 14 VDD1 - Digital power supply voltage terminal. 15 VSS2 - Digital ground terminal. 16 DATA O SubcodePWdata output terminal. (Not connect) 17 SFSY O Playback frame sync signal output terminal. (Not connect) 18 SBSY O Subcode block sync signal output terminal. (Not connect) 19 SPCK O Processor status signal readout clock output terminal. (Not connect) 20 SPDA O Processor status signal output terminal. (Not connect) 21 COFS O Correction frame clock output terminal. (7.35kHz) (Not connect) 22 MONIT O Internal signal (DSP internal flag and PLL clock) output terminal. Selected by command. This terminal output the text data with serial by command. (NC) 23 VDD2 - Digital power supply voltage terminal. 24 TESIO0 I Test input/output terminal. Normally, keep at "L" level. The terminal that inputted the clock for read of text data by command. 25 P2VREF - PLL double reference voltage supply terminal. 26 HSSW O 2/4 times speed at "VREF" voltage. (Not connect) 27 ZDETO1bit DA converter zero detect flag output terminal. 28 PDO O Phase difference signal output terminal of EFM signal and PLCK signal. 1-21 100 81 31 50, Pin No. Symbol I/O Function 29 TMAXS O TMAX detection result output terminal. Selected by command bit (TMPS). 30 TMAX O TMAX detection result output terminal. Selected by command bit (TMPS). DIFFERENCE RESULT TMAX OUTPUT Longer than fixed freq. "P2VREF" Shorter than fixed freq. "Vss" Within the fixed freq. "HiZ" 31 LPFN I LPF amplifier inverting input terminal for PLL. 32 LPFO O LPF amplifier output terminal for PLL. 33 PVREF - PLL reference voltage supply terminal. 34 VCOREF I VCO center frequency reference level terminal. Normally, keep at "PVREF" level. 35 VCOF O VCO filter terminal. 36 AVSS1 - Analog ground terminal. 37 SLCO O Data slice level output terminal. 38 RFI I RF signal input terminal. 39 AVDD1 - Analog power supply voltage terminal. 40 RFCT I RFRP signal center level input terminal. 41 RFZI I RFRP zero cross input terminal. 42 RFRP I RF ripple signal input terminal. 43 FEI I Focus error signal input terminal. 44 SBAD I Sub-beam adder signal input terminal. 45 TSIN I Test input terminal. Normally, keep at "VREF" level. 46 TEI I Tracking error signal input terminal. Take in at tracking servo on. 47 TEZI I Tracking error zero cross input terminal. 48 FOO O Focus servo equalizer output terminal. 49 TRO O Tracking servo equalizer output terminal. 50 VREF - Analog reference voltage supply terminal. 51 RFGC O RF amplitude adjustment control signal output terminal. 52 TEBC O Tracking balance control signal output terminal. 53 FMO O Feed equalizer output terminal. 54 FVO O Speed error signal or feed search equalizer output terminal. (Not connect) 55 DMO O Disk equalizer output terminal. (PWM carrier=88.2kHz for DSP, Synchronize to PXO) 56 2VREF - Analog double reference voltage supply terminal. 57 SEL O APC circuit ON/OFF indication signal output terminal. At the laser on time, UHF = L at "HiZ" level and UHF = H at "H" level. 58 FLGA O External flag output terminal for internal signal. (Not connect) Can select signal from TEZC, FOON, FOK and RFZC by command. 59 FLGB O External flag output terminal for internal signal. (Not connect) Can select signal from DFCT, FOON, FMON and RFZC by command. 60 FLGC O External flag output terminal for internal signal. (Not connect) Can select signal from TRON, TRSR, FOK and SRCH by command. 61 FLGD O External flag output terminal for internal signal. (Not connect) Can select signal from TRON, DMON, HYS and SHC by command. 62 VDD3 - Digital power supply voltage terminal. 63 VSS3 - Digital ground terminal. 64 IO0 I/O General I/O terminal. Can change over input port or output port by command. 65 IO1 I/O At the input mode time can readout a state of terminal (H/L) by read command. 66 IO2 I/O At the output mode time can control a state of terminal (H/L/HiZ) by command. 67 IO3 I/O (Not connect) 1-22, Pin No. Symbol I/O Function 68 DMOUT I This terminal controls IO0 IO3 terminal. At "L" level time, IO0, 1 out feed equalizer signal of 2-state PWM, IO2,3 out disk equalizer signal of 2-state PWM. 69 CKSE I Normally, keep at open. 70 DACT I DAC test mode terminal. Normally, keep at open. 71 TESIN I Test input terminal. Normally, keep at "L" level. 72 TESIO1 I Test input/output terminal. Normally, keep at "L" level. 73 VSS4 - Digital ground terminal. 74 PXI I Crystal oscillator connecting input terminal for DSP. Normally, keep at "L" level. 75 PXO O Crystal oscillator connecting output terminal for DSP. (Not connect) 76 VDD4 - Digital power supply voltage terminal. 77 XVSS - Oscillator ground terminal for system clock. 78 XI I Crystal oscillator connecting input terminal for system clock. 79 XO O Crystal oscillator connecting output terminal for system clock. 80 XVDD - Oscillator power supply voltage terminal for system clock. 81 DVSR - Analog ground terminal for DA converter.(R-ch) 82 ROORchannel data forward output terminal. 83 DVDD - Analog supply voltage terminal for DA converter. 84 DVR - Reference voltage terminal for DA converter. 85 LOOLchannel data forward output terminal. 86 DVSL - Analog ground terminal for DA converter.(L-ch) 87 TEST1 I Test mode terminal. Normal, keep at open. 88 TEST2 I Test mode terminal. Normal, keep at open. 89 TEST3 I Test mode terminal. Normal, keep at open. 90 BUS0 I/O Micon interface data input/output terminal. 91 BUS1 I/O 92 BUS2 I/O 93 BUS3 I/O 94 VDD5 - Digital power supply voltage terminal. 95 VSS5 - Digital ground terminal. 96 BUCK I Micon interface clock input terminal. 97 CCE I Command and data sending/receiving chip enable signal input terminal. The bus line becomes active at "L" level. 98 TEST4 I Test mode terminal. Normal, keep at open. 99 TSMOD I Local test mode selection terminal. (Not connect) 100 RST I Reset signal input terminal. Reset at "L" level. 1-23,

TMP87EP26 (IC601) : MCU

1. Terminal layout 80 51 81 50 (Top view) 100 31 1 30 2.Pin function Pin No. Symbol I/O Function 1 VSS - GND (0V) 2 XOUT O Resonator connecting pins for high clock(4-8MHz). 3 XIN I For inputting external clock, XIN is used and XOUT is opened. 4 RESET I/O Reset signal input or watchdog timer output/address-trap-reset output 5 XTOUT(P22) I/O Resonator connecting pins for slow clock(32.768kHz) 6 XTIN(P21) I/O or general purpose I/O. 7 TEST I Test pin for out-going test. Always fixed to low. 8 SHIFT FREQ O Shift the crystal oscillation frequency to reduce tuner noise. 9 REMOTE I Remote control signal input 10 MUTE O Audio mute output 11 PLAY MUTE O Muting output during play, not connect 12 REC MUTE O Muting output during recording, not connect 13 PLAY/REC O Play or recording output, low for recording. 14 NC(SCK2) - Not connect 15 NC(SI2) - Not connect 16 NC(SO2) - Not connect 17 REC SW (RVS)/(WAIT) I Deck reverse record protection input. Low means can record on reverse side. 18 REC SW (FWD) I Deck forward record protection input. Low means can record on forward side. 19 B-SOL+ O Solenoid output for deck B. 20 B-MODE SW I Mode switch input of deck B. Low means the head is up. 21 VOL STB O TC9422F volume STB output 22 POWER O Power output control 23 B-HALF SW I Half switch input of deck B. Low means deck B have tape. 24 JOG-B/VOL DATA I/O Jog dial input and TC9422F volume data output 25 JOG-A/VOL CLK I/O Jog dial input and TC9422F volume clock output 26 RDS CLK I BU1923F(RDS demodulator) interface CLK input 27 V MOTOR O Motor output 28 B-PHOTO OUT I Reel pulse input of deck B. Have pulse input means the tape is rotating. 29 CD-RW O CD-RW control output, not connect 30 RES O CD servo reset output 1-24, Pin No. Symbol I/O Function 31 CCE O Servo DSP chip enable output 32 BUCK O Servo DSP clock output 33 BUS0 I/O Servo DSP command and data I/O 34 BUS1 I/O Servo DSP command and data I/O 35 BUS2 I/O Servo DSP command and data I/O 36 BUS3 I/O Servo DSP command and data I/O 37 TRAY IN(SLOUT) O Tray open/close outputs for current sensor drawer type mechanism. 38 TRAY OUT(SLIN) O 39 SLT I CD pick up position input: L if pick up is in inner side. 40 CLT(SLEND) I Current sensor input 41 NC - Not connected 42 RDS DATA I BU1923F(RDS demodulator) interface data input 43 STEREO I Stereo input pin for tuner stereo indication 44 POWER DETECT I Power down detection 45 AD K3 I Panel key analog input 46 AD K2 I Panel key analog input 47 AD K1 I Panel key analog input 48 VAREF - Analog reference voltage input 49 (BOOT) I Control input for writing MCU program area via ICU interface. 50 VSS - GND (0V) 51 VDD - VDD (+5V) 52 91 SEG390OLCD segment outputs 92 95 COM30OLCD common outputs 96 VLC - LCD drive power supply 97 PLL DATA I/O TC9257P (PLL) interface 98 PLL CLK O TC9257P (PLL) interface 99 PLL PERIOD O TC9257P (PLL) interface 100 VDD - VDD (+5V) 1-25,

AN7312 (IC202) : Dual recording/Playback pre-amplifier circuit with ALC

1. Terminal layout 2. Block diagram Vcc 14 ~ 8 14 13 12 11 1098Ripple Filter Amp.Ch2 1 ~ 7 ALC Amp. Ch11234567

GND

3. Pin function Pin No. Symbol I/O Function 1 GND - GND 2 ALC time constant - ALC time constant by resistance and capacitor 3 ALC input Ch.1 I Right channel ALC input 4 Output Ch.1 O Right channel output 5 Phase compensation Ch.1 - Not connect 6 N.F.B. Ch.1 I Right channel negative feed back input 7 Input Ch.1 I Right channel signal input 8 Input Ch.2 I Left channel signal input 9 N.F.B. Ch.2 I Left channel negative feed back input 10 Phase compensation Ch.2 - Not connect 11 Output Ch.2 O Left channel output 12 ALC input Ch.2 I Left channel ALC input 13 Ripple filter - Ripple filter 14 Vcc - Power supply

BA4558N (IC402) : Dual operational amplifier

1. Terminal layout & Block diagram 2. Pin function Pin No. Symbol I/O Function 1 OUT1OAoutput 2 -IN1IA-input 1ch 2ch 3 +IN1IA+input 4 VEE - V- 5 +IN2IB+input123456786-IN2IB-input OUT1 -IN1 +IN1 VEE +IN2 -IN2 OUT2 Vcc 7 OUT2OBoutput 8 VCC - V+ 1-26,

BU1924F (IC602) : RDS decoder

1. Terminal layout 2. Block diagram VSS3 CMP78116 2 15 100k 3 14 MUX4413 120k 100k - 8th Switched 5 12 + capacitor filter 6 11 VREF 3 anti-aliasing comparator 7 10 filter89VDD1 5 16 RCLK Analog power supply VSS161QUAL

PLL

V 12 57kHz PLL Bi-phase DifferentialDD2 2 RDATA Digital RDS/ARI 1187.5Hz decoder decoder power supply Measurement VSS2 11 Reference circuit clock 13 14 10 9 Xl XO T1 T2 3. Pin function

Pin No. Symbol I/O Function

1 QUAL O Demodulator quality good: HI (Not connect) 2 RDATA O Demodulator data 3 VREF - 1/2 VDD1 see application 4 MUX - Composite see application 5 VDD1 - Analog power supply 6 VSS1 - Analog power supply 7 VSS3 - Analog power supply 8 CMP - See application 9 T2 - H: Internal clock stop L: operation 10 T1 - Testing (do not use) 11 VDD2 - Digital power supply 12 VSS2 - Digital power supply 13 XI - 4.332MHz see application 14 XO - 4.332MHz see application 15 NC - Not connect 16 RCLK - 1187.5Hz 1-27,

LA4282 (IC401) : Power amplifier

1. Terminal layout & Block diagram 2. Pin function Pin No. Symbol I/O Function 30k 1 NF1 - Right channel negative feed back 300 2 IN1 I Right channel signal input CH1 3 RIPPLE FILTER - Ripple filter Thermal over voltage 4 PRE GND - PRE GND Ripple protector filter CH2 5 IN2 I Left channel signal input 30k 6 NF2 - Left channel negative feed back 300 Mute Vcc 7 OUT2 O Left channel output circuit 8 MUTE - Mute control12345678910 11 12 9 POWER GND2 - Power GND 10 Vcc - Power supply 11 OUT1 O Right channel output 12 POWER GND1 - Power GND

NJM7812A (IC302) : Regulator

1. Terminal layout 2. Block diagram Q1 INPUT12OUTPUT THERMAL SHUTDOWN OVER VOLTAGE PROTECTION R1 1.INPUT 2.OUTPUT (+12V) BANDGAP REFERENCE 3.GND SOA PROTECTION123SHORT CIRCUIT R2

PROTECTION GND TA7291S (IC702) : Bridge driver

1.Terminal Layout 2.Pin function Pin No. Symbol I/O Function 1 IN2(M-) I Input terminal 2 Vcc - Supply voltage terminal for logic 3 OUT2 O Output terminal1234567894NC - Not connect 5 GND - Ground terminal 6 Vs - Supply voltage terminal for motor driver 7 OUT1 O Output terminal 8 Vref - Supply voltage terminal for control 9 IN1(M+) I Input terminal 1-28 NF1 IN2 VCC IN1

RIPPLE

OUT2 FILTER NC PRE GND GND IN2 VS NF2 OUT1 OUT2 VREF MUTE IN1 POWERGND2 Vcc OUT1

POWER

GND1,

TA2092N (IC703) : Power driver

1. Terminal Layout & Block Diagram 2. Pin function Pin No. Symbol I/O Function PW GND1 1 24 PW GND4 1 PW GND1 - Power GND OUT(-)1 2 23 OUT(-)4 2 OUT(-)1 O Inverted output for CH1 PW VCC1 3 22 PW VCC4 3 PW VCC1 - Supply terminal of output stage for CH1 OUT(+)1 4 21 OUT(+)4 4 OUT(+)1 O Non-inverted output for CH1 VIN1 5 20 VIN4 5 VIN1 I Input for CH1 VRI 6 19 SVCC1 6 VRI I Input reference voltage VCI 7 18 SGND 7 VCI O Output reference voltage VIN2 8 17 VIN3 8 VIN2 I Input for CH2 OUT(+)2 9 16 OUT(+)3 9 OUT(+)2 O Non-inverted output for CH2 PW VCC2 10 15 PW VCC3 10 PW VCC2 - Supply terminal of output stage for CH2 OUT(-)2 11 14 OUT(-)3 11 OUT(-)2 O Inverted output for CH2 PW GND2 12 13 PW GND3 12 PW GND2 - Power GND 13 PW GND3 - Power GND 14 OUT(-)3 O Inverted output for CH3 15 PW VCC3 - Supply terminal of output stage for CH3 16 OUT(+)3 O Non-inverted output for CH3 17 VIN3 I Input for CH3 18 SGND - Supply terminal of small signal GND 19 SVCC1 - Small signal GND 20 VIN4 I Input for CH4 21 OUT(+)4 O Non-inverted output for CH4 22 PW VCC4 - Supply terminal of output stage for CH4 23 OUT(-)4 O Inverted output for CH4 24 PW GND4 - Power GND

UPC1330HA (IC201) : REC/PB audio head switch

1. Terminal layout 2. Block diagram

INVERTER COMPARATOR

191234567893. Pin function Pin No. Symbol I/O Function 1 SWR1 - Record SW (Left channel) 2 GND - GND 3 SWP1 - Play SW (Left channel) 4 CONT - Record/Play control pin 5 GND - GND 6 VCC - Power supply 7 SWP2 - Play SW (Right channel) 8 GND - GND 9 SWR2 - Record SW (Right channel) 1-29,

TA2099 (IC101) : AM/FM tuner

1. Terminal layout 2. Block diagram 24 23 22 21 20 19 18 17 16 15 14 13 1 24 2 23 REF AF VCD 3 22 DIVIDE 4 21 FM DECODEFM MUTE 5 20 IF ANTI BIRDIEDET 6 19 7 18 LEVEL 8 17 SW ST/MO 9 16 AM AM FM/AM IFIF DET 10 15 11 14 12 13 IFBUFF BUFF FM S-METER AGC IF REQ SW TUN STAM AM MIX OSC12345678910 11 12 3. Pin function Pin No. Symbol I/O Function 1 AM RF IN I AM RF input signal terminal 2 FM BW O FM band width adjust terminal 3 FM VL SENS I FM LED ON sensitivity adjust terminal 4 AM OSC I AM OSC input terminal 5 AM OSC OUT O AM OSC output terminal 6 Vcc I Power terminal 7 AGC O FM S-meter 8 GND - Ground 9 IF OUT/REQ O IF count output terminal 10 TUN LED O Connect tuner LED 11 ST LED O Connect stereo LED 12 R OUT O R-CH output signal terminal 13 L OUT O L-CH output signal terminal 14 BLENDER O FM blender control adjust terminal 15 LPF2 O LPF terminal for synchronous 16 LPF1 O LPF terminal for phase detector 17 FM ST DET IN I FM ST DET input terminal 18 AM DET OUT O AM DET output terminal 19 FM DET OUT O FM DET output terminal 20 QUAD O FM demodulator 21 AM IF IN I AM IF input signal terminal 22 Vstb O Set to 2V internally 23 AM MIX OUT O AM MIX output terminal 24 FM IF IN I FM IF input signal terminal 1-30,

TA2109F (IC704) : RF amplifier

1. Terminal Layout 2. Block Diagram - + VCC 1 24 RFN SBAD 13 + - 12 TEO FNI 2 23 GND FPI 3 22 RFO FEO 14 11 TEN TPI 4 21 AGCI + TNI 5 20 RFGC FEN 15 - 10 2VRO MDI 6 19 RFGO LDO 7 18 RFIS -VRO 16 3 STATE 9 TEB SEL 8 17 RFRP + DET TEB 9 16 VRO 17 SW1 LDC 8 2VRO 10 15 FEN RFRP + SEL - - TEN 11 14 FEO - + + TEO 12 13 SBAD RFIS 18 7 LDO

PEAK

RFGO 19 BOTTOM SW2 6 MDI - RFGC 20 + I-I 5 TNI AGCI 21 - I-I 4 TPI + - + RFO 22 - 3 FPI + - GND 23 + - 2 FNI + RFN 24 1 Vcc 3. Pin function Pin No. Symbol I/O Function 1 VCC - Power supply input terminal 2 FNI I Main beam I-V amplifier input terminal 3 FPI I Main beam I-V amplifier input terminal 4 TPI I Sub beam I-V amplifier input terminal 5 TNI I Sub beam I-V amplifier input terminal 6 MDI I Monitor photo diode amplifier input terminal 7 LDO O Laser diode amplifier output terminal 8 SEL I Laser diode control signal input terminal and APC circuit ON/OFF control signal input terminal 9 TEB I Tracking error balance adjustment signal input terminal, controlled by 3 PWM signal 10 2VRO O Reference voltage (2Vref) output terminal, 2Vref=4.2V when Vcc=5V 11 TEN I TE amplifier negative input terminal 12 TEO O TE error signal output terminal 13 SBAD O Sub beam adder signal output terminal 14 FEO O Focus error signal output terminal 15 FEN I FE amplifier negative input terminal 16 VRO O Reference voltage (Vref) output terminal, Vref=2.1V when Vcc=5V 17 RFRP O Track count signal output terminal 18 RFIS I RFRP detect circuit input terminal 19 RFGO O RF gain signal output terminal 20 RFGC I RF amplitude adjustment control signal input terminal, controlled by 3 PWM signal (PWM carrier =88.2 kHz) 21 AGCI I RF signal amplitude adjustment amplifier input terminal 22 RFO O RF signal output terminal 23 GND - Ground terminal 24 RFN I RF amplifier negative input terminal 1-31 - - + + - + - +,

TC9257F (IC102) : PLL frequency synthesizer

1. Terminal layout XT 1 20 FM VT XT 2 19 AM VT PRD 3 18 B1 CLK 4 17 B0 DATA 5 16 IF MUTE 6 15 GND TUNER 7 14 FM OSC CD 8 13 AM OSC AUX 9 12 VDD ST MONO 10 11 EE 2. Block diagram VDD GND 12 15 FML PSC

AMP

14 2 MODULUS 4bit SWALLOWFM OSC 1/2 POWER ONPRESCALER COUNTER RESET FM HF RESETH AM OSC 13 12bit PROGRAMMABLE COUNTER TRI-STATE 19 AM VT FM MODE LF BUFFER XT 2

OSC

REFERENCE COUNTER MAX TRI-STATE CIRCUIT BUFFER 20 FM VT XT 1 15 1ms OSC 4 OT4 24bit REGISTER UNLOCK 10 ST MONO DATA 5 24bit SHIFT REGISTER 11 EE CLK44TEST 5 ADDRESS 24 22

DECODER

PRD 3 10 24bit REGISTER 16 IF44AMP 20bit BINARY COUNTER 17 B0

AMP

OUTPUT PORT UNIVERSAL COUNTER CONTROL GATE 18 B1 OT-4 XT 1ms6789MUTE CD TUNER AUX 3. Pin function

Pin No. Symbol I/O Function Pin No. Symbol I/O Function

1 XT I Crystal oscillator pins 11 EE I/O General-purpose I/O port 2 XT O Crystal oscillator pins 12 VDD - Power supply pin 3 PRD I Period signal input 13 AM OSC I Programmable counter input 4 CLK I Clock signal input 14 FM OSC I Programmable counter input 5 DATA I/O Serial data input/output 15 GND - Ground pin 6 MUTE O General-purpose output port 16 IF I/O General-purpose I/O port 7 TUNER O General-purpose output port 17 B0 I/O General-purpose I/O port 8 CD O General-purpose output port 18 B1 I/O General-purpose I/O port 9 AUX O General-purpose output port 19 AM VT O Phase comparator output 10 ST MONO I/O General-purpose I/O port 20 FM VT O Phase comparator output 1-32

PHASE COMPARATOR

I/O PORT,

TC9422F (IC301) : System electronic volume

1.Terminal Layout GND 1 28 VDD L-IN1 2 27 R-IN1 L-IN2 3 26 R-IN2 L-IN3 4 25 R-IN3 L-IN4 5 24 R-IN4 L SW-OUT 6 23 R SW-OUT L VR-IN 7 22 R VR-IN L-B1 8 21 R-B1 L-B2 9 20 R-B2 L-B3 10 19 R-B3 L TONE-OUT 11 18 R TONE-OUT L-T1 12 17 R-T1 Vref 13 16 STB CK 14 15 DATA 2.Block Diagram GND VDD 1 28 INPUT SELECTOR INPUT SELECTOR 100k 100k L-IN1 2 27 R-IN1 L-IN2 3 26 R-IN2 L-IN3 4 25 R-IN3 GAIN CONTROL GAIN CONTROL 0,6,12,18dB 0,6,12,18dB L-IN4 5 24 R-IN4 L SW-OUT 6 LATCH 23 R SW-OUT MAIN VR MAIN VR 50k /64STEP DECODER 50k /64STEP L VR-IN 7 22 R VR-IN

CIRCUIT

L-B1 8 21 R-B1 50k 50k L-B2 9 20 R-B2 L-B3 10 CAPACITOR FOR CAPACITOR FOR 19 R-B3 OSCILLATION OSCILLATION 13k 11 BASS VR BASS VR 13k L TONE-OUT 500 50k /16STEP 50k /16STEP 18 R Tone-OUT TREBLE VR TREBLE VR 50k /16STEP 50k /16STEP L-T1 12 17 R-T1 750 750 32BIT SR 50k 50k 13 14 15 16 Vref CK DATA STB 1-33 1k 13k 13k 1k, 3.Pin Function Pin No. Symbol I/O Function 1 GND - Ground pin 2 L-IN1 I Audio signal input pin (L-ch) 3 L-IN2 I Audio signal input pin (L-ch) 4 L-IN3 I Audio signal input pin (L-ch) 5 L-IN4 I Audio signal input pin (L-ch), not connect6LSW-OUT O Audio signal output pin (L-ch) 7 L VR-IN I Main volume input pin (L-ch) 8 L-B1 I Tone control tap pin 1 for bus 9 L-B2 I Tone control tap pin 2 for bus 10 L-B3 I Tone control tap pin 3 for bus 11 L TONE-OUT O Tone control output pin (L-ch) 12 L-T1 I Tone control tap pin for treble (L-ch) 13 Vref I Reference voltage input pin 14 CK I Clock input pin 15 DATA I Data input pin 16 STB I Strobe input pin 17 R-T1 I Tone control tap pin for treble (R-ch) 18 R TONE-OUT O Tone control output pin (R-ch) 19 R-B3 I Tone control tap pin 3 for bus 20 R-B2 I Tone control tap pin 2 for bus 21 R-B1 I Tone control tap pin 1 for bus 22 R VR-IN I Main volume input pin (R-ch) 23 R SW-OUT O Audio signal output pin (R-ch) 24 R-IN4 I Audio signal input pin (R-ch), not connect 25 R-IN3 I Audio signal input pin (R-ch) 26 R-IN2 I Audio signal input pin (R-ch) 27 R-IN1 I Audio signal input pin (R-ch) 28 VDD - Power supply voltage pin 1-34,

Wiring connections

P/N: OW29-21400-01 P101 P103 P/N: OW23-04910-02 P102 P104 P/N: OW20-41042-35 P/N: OW20-42041-40 P/N: OW20-41062-26 P/N: OW25-61080-01 CD load motor board P/N: OW20-41022-25 P/N: OW20-41032-17 P/N: OW30-00020-06E 1-35

OW

Earphone board P/N: OW20-42021-45 CN4031 4 CN705 P/N: OW20-42032-15K CN101 JK101 CN902 CN401

Power board

CN901 Main board CN402 P/N: OW20-61033-24 P/N: OW20-41102-27 P/N: OW20-41082-32 CN607 P/N: OW20-41082-39

CD & MCU board CN201 Power

transformer

OW

P/N: OW25-23070-02K P/N: OW20-61073-10 LED board CN801

Key board OW Color codes are shown below

1 - BROWN 6 - BLUE CN802 2 - RED 7 - VIOLET 3 - ORANGE 8 - GREY 4 - YELLOW 9 - WHITE 5 - GREEN 0 - BLACK,

UX-M33

VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,maebashi-city,371-8543,Japan

No.21187 200212

]
15

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