Philips DVDR1000/001 Service Manual page 66

GB 66 5. DVDR1000 /0x1 /691
Reset and Clock Check
USE DIGITAL BOARD CIRCUIT DIAGRAMS 1,2,7 AND 8 AND DIGITAL BOARD BOTTOM VIEW TESTPOINTS
Diagnostic Software and Faultfinding Trees
RESET & CLOCK CHECK DIGITAL BOARD
Power on and exit
stand-by mode
Resetn_5505(+3V3) on testpoint I202
Resetn_VIP(+3V3) on pin 6 of IC7916
Resetn_VSM(+3V3) on testpoint I111
OK
Resetn_BE(+3V3) on testpoint I916
Resetn_DSP(+3V3) on testpoint I913
Resetn_DVIO(+3V3) on testpoint I578
OK
Sysclk_VSM(27MHz) on testpoint I817
Sysclk_5505(27MHz) on testpoint I819
27M_clk_PS(27MHz) on testpoint I821
OK
acc_aclk_pll(12MHz) on testpoint I803
OK
EMI_PROCCLK(50MHz) on testpoint I181
OK
DSP_clk(8MHz) on testpoint I710
OK
VIP_ICLK(27MHz) on testpoint I101
OK
VSM_M_CLKOUT(27MHz) on testpoint I188
OK
Reset- & clock signals are OK
- Check IC7913, IC7916 and IC7918
NOK
- Check R4918, R4919 and R4920
- Check IC7202 and IC7100
- Check IC7913
NOK
- Check IC7918
- Check R3927
- Check Oscillator 7802
NOK
- Check IC7801
- Check R3807, R3803 and R3819
- Check Oscillator 7802
NOK
- Check IC7800 and 7801
- Check R3802
- Check IC7202
NOK
- Check R3208
- Check IC7100
- Check IC7704
NOK
- Check IC7703
- Check R4700
- Check IC7552
NOK
- Check IC7100
- Check R3554
- Check IC7100
NOK
- Check IC7202
- Check R3208
Figure 5-22
CL 16532095_088.eps
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