Philips DVDR980/001 Service Manual page 69

Reset and Clock Check
USE DIGITAL BOARD CIRCUIT DIAGRAMS 1,2,7 AND 8 AND DIGITAL BOARD BOTTOM VIEW TESTPOINTS
Sysclk_VSM_5508(27MHz) on testpoint I917
Sysclk_ProgScan(27MHz) on testpoint I920
Sysclk_Empress(27MHz) on testpoint I924
ACC_ACLK_PLL(12MHz) on testpoint I902
ACC_ACLK_OSC(12MHz) on testpoint I143
EMI_PROCCLK(60MHz) on testpoint I170
Diagnostic Software and Faultfinding Trees
RESET & CLOCK CHECK DIGITAL BOARD
Power on and exit
stand-by mode
Resetn(+3V3) on testpoint I912
OK
Resetn_BE(+3V3) on testpoint I126
Resetn_DVIO(+3V3) on testpoint I659
Resetn_VE(+3V3) on testpoint I206
OK
OK
OK
OK
OK
VIP_ICLK(27MHz) on testpoint I101
OK
Reset- & clock signals are OK
DVDR980-985 /0X1
- Check IC7902
NOK
- Check D6900
- Check R3924 and R3925
- Check IC7702
NOK
- Check IC7200
- Check IC7403
- Check Oscillator 7906
NOK
- Check IC7904
- Check R3906, R3908 and R3917
- Check Oscillator 7906
NOK
- Check IC7900
- Check R3901
- Check IC7102
NOK
- Check R3125
- Check IC7200
NOK
- Check R3208
- Check IC7100
- Check IC7500
NOK
- Check IC7100
- Check R3505
Figure 5-24
5. EN 69
CL 16532145_047.eps
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