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Troubleshooting Samsung Electronics 6-1 6-2 Samsung Electronics Samsung Electronics 6-3 6-4 Samsung Electronics Samsung Electronics 6-5 6-1 Test and repair of digital section * Perform the operation test and check for fault in digital section during adjustment and diagnostic program. (Refer to Chapter 5 for Environments, function, program installation and initial execution) Select 'SDC33/30' of Winows menu bar in use of mouse. Two items appear as shown in Fig.6-2. Select 'Option' to set the test item Select 'Start' for execution Fig.6-2 Select 'SDC-30/33' of menu bar Finish Fig.6-1 6-2 Optio...
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Troubleshooting Samsung Electronics 6-1, 6-2 Samsung Electronics, Samsung Electronics 6-3, 6-4 Samsung Electronics, Samsung Electronics 6-5, 6-1 Test and repair of digital section * Perform the operation test and check for fault in digital section during adjustment and diagnostic program. (Refer to Chapter 5 for Environments, function, program installation and initial execution) Select 'SDC33/30' of Winows menu bar in use of mouse. Two items appear as shown in Fig.6-2. Select 'Option' to set the test item Select 'Start' for execution Fig.6-2 Select 'SDC-30/33' of menu bar Finish Fig.6-1 6-2 Option window Option window is set as follows. Communication port setting : The current DSC sets the communication port connected with PC Communication rate setting : Select the communication rate between DSC and PC (usuallg 56000). If an error occurs, reduce the communication rate ( 9600 minimum and 115200 maximum ). Test setting : TEST DECISION : Disconnection or function (or change the internal adjustment value). Refer to for details. OK button : When the above items are set, select 'OK' and complete the test. Note : select ‘start” of SVC menu to display the window shown in Fig.6-3 Option window setting Fig. 5-14. 6-6 Samsung Electronics, 6-3 Test procedure Power supply DRAM test Memory format ASIC test LCD test Mode test Timer test Shot & Display Power interrupt Fig.6-4 Test procedure Samsung Electronics 6-7, 6-4. Test items : Supply power to the entire camera Power supply : Check connections between DRAM and RISC DRAM test : Check the flash memory. The various information and image management Memory format data required by the camera are stored in the flash memory. * Normal memory : Go to the next step with 'Formatted' message. Fig.6-5 * Abnormal memory : Display the window to ask for compulsory format with 'Format is broken' message as shown in Fig 6-6. Press 'Enter' ( PC keyboard) to retry memory format. Press '+' to enter the next step with- out formatting. (If formatted, all image data are deleted.) *Key : Stop Enter key : Continue *Replace with new memory : when replacing with new memory ( due to Fig.6-6 memory error ), go to the next step after automatic formatting. : Check for any disconnections between ASIC, RISC and DRAM and ASIC test ASIC. : Check each segment of camera LCD screen. Press 'Enter' key to stop LCD test and enter the next step. : Test by converting the camera into shot mode. The camera has two Mode test types of shot functions VGA(640*480) and QVGA(320*240). Test these mode conversions. : Check the delay shot On/Off. Display the result by means of self Timer test On/Off without special operation. : Display the thumbnail after shot, to confirm normal or abnormal Shot & Display operation. : After completion of all tests and adjustments disconnect the power Power interrupt supply. Fig.6-7 6-8 Samsung Electronics, 6-5. Follow up Actions After inspection * Communication port XX can't be used. Select another port. -> Cannot use com port XX. Select another com port. * RISC Processor isn't active. -> RISC Processor does not respond. * Can't receive the specified count of data from camera. -> Camera Communication Error. * There is a Fatal error in DRAM circuit. -> DRAM Test error. * A fatal error occurs during ASIC test. -> ASIC Test error. * A fatal error occurs during Vsub adjustmentt. -> V-sub adjust error. * Memory has been previously formatted. -> Memory was already formatted. * An error occurs in flash memory. -> Flash Memory has defective area. -> Flash Memory clearing error. -> Flash Memory system block error. * New flash memory. -> Flash memory is rare. * There are Many bad blocks in flash memory. -> Flash Memory system block error. * XX data bus has a problem. -> Data line XX error detected. * Address bus has a problem. -> Address line error detected. Samsung Electronics 6-9,

MEMO

6-10 Samsung Electronics]
15

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