Panasonic SV-SD100VEB Service Manual

Contents

Fig.S208.15. SERVICE 13: Device CheckChecks for malfunctions at the main PCB´s IC8 and IC4, andperipheral circuitry.1. Execute the "8.3 SERVICE 1: EL Display Mode Switching"procedure so that EL is always ON.2. Execute the SERVICE 13 menu as described in section 8.2(Entering The Service Mode).· The device check screen displays.· The check results (Fig.S21) then display approximately15 seconds later.* Checks occur in the SRAM check, ASIC check, A-Corecheck order. If an error is found, the check operationstops at that point.3. Open the battery cover to end the procedure.Fig.S218.15.1. Explanation Of Device CheckResultsDisplayContentSymptom/Condition Cause & CountermeasureSRAM1 : NG Possible cause: Main PCBIC4 malfunction.Check the main PCB IC4and peripheral circuitry.SRAM2 : NG Possible cause: Main PCBIC8 malfunction.Check the main PCB IC8and peripheral circuitry.ASIC : NG Possible cause: Main PCBIC8 malfunction.Check the main PCB IC8and peripheral circuitry.A-CORE : NG Possible cause: Main PCBIC8 malfunction.Check the main PCB IC8and peripheral circuitry.As the IC4 (Flash ROM) cannot be replaced independently,replace the main PCB with a device key loaded PCB(REP3902A-M).Note: Main PCB replacement should be performed withreference to section 7 (Precautions When Executing TheMain PCB Replacement Service).8.16. Error Code TableError Code Error Description Cause Countermeasure1001 SD card initialization failure Hardware/software Try changing the SD-card, and turning the powerOFF and ON. If the error persists, try removing thebattery and installing it again. If the error stillpersists, perform a device check.1002 MBR reading error (normal) Hardware/software Try changing the SD-card, and turning the powerOFF and ON. If the error persists, try removing thebattery and installing it again. If the error stillpersists, perform a device check.1003 FAT reading error (normal) Data Try changing the SD-card, and turning the powerOFF and ON. If the error persists, try removing thebattery and installing it again. If the error stillpersists, perform a device check.1004 DIR entry reading error (normal) Hardware/software Try changing the SD-card, and turning the powerOFF and ON. If the error persists, try removing thebattery and installing it again. If the error stillpersists, perform a device check.1005 MBR logic error (normal) Data Format the SD-card at the audio player.1006 FAT logic error (normal) Data Format the SD-card at the audio player.1008 No SD AUDIO directory (normal) Data Replace with an SD-card that contains a recording1009 MBR reading error (secure) Hardware/software Replace the SD-card with another card. If the errorpersists, check the main PCB´s IC4 and peripheralcircuitry.100A FAT reading error (secure) Hardware/software Replace the SD-card with another card. If the errorpersists, check the main PCB´s IC4 and peripheralcircuitry.17SV-SD100VEB / SV-SD100VEG / SV-SD100VGC / SV-SD100VGK / SV-SD100VGN / SV-SD100VPP