Dsw Audio Part Check - Philips DVDR980/001 Service Manual

EN 72 5. DVDR980-985 /0X1

DSW Audio Part Check

DSW AUDIO PART CHECK
Start Diagnostic Software
and select Command mode
Audio Clock Test
Command: 1400
Measure ACC_ACLK_PLL on I902
(11.289MHz)
Audio Clock Test
Command: 1401
Measure ACC_ACLK_PLL on I902
(12.288MHz)
Host Pink Noise ON
Command: 115
Check AD_BCLK(3.072MHz) on pin14 of con.1602
Check AD_WCLK(48KHz) on pin12 of con.1602
Check AD_ACLK(12.288MHz) on pin9 of con.1602
Check AD_DATAO(Activity) on pin11 of con.1602
Check AD_SPDIF33(Activity) on pin2 of con.1602
Host Pink Noise OFF
Command: 116
Check AD_BCLK(3.072MHz) on pin14 of con.1602
Check AD_WCLK(48KHz) on pin12 of con.1602
Check AD_ACLK(12.288MHz) on pin9 of con.1602
Check AD_DATAO(No Activity) on pin11 of con.1602
Check AD_SPDIF33(No Activity) on pin2 of con.1602
Audio I2S Encoding Path Test
Command: 900
Check AE_BCLK(3.072MHz) on pin21 of con.1602
Check AE_WCLK(48KHz) on pin20 of con.1602
Check AE_DATAI(Activity) on pin18 of con.1602
Check AE_DATAO(Activity) on testpoint I155
Check AE_ACLK on pin16 of con. 1602
Video Encoding Path Test
Command: 902
Check VIP_ICLK(27MHz) on testpoint I101
Check VIP_VS(50Hz) on pin1 of IC7502
Check VE_DSn(Activity) on testpoint I104
Check VE_DTACKn(Activity) on testpoint I103
Mute ON Test --> Command: 109
Check Mute level(high) on testpoint I609
Mute OFF Test --> Command: 110
Check Mute Level(low) on testpoint I609
AUDIO PART OK
Diagnostic Software and Faultfinding Trees
NOK
OK
NOK
OK
NOK
OK
NOK
OK
NOK
OK
NOK
OK
NOK
OK
- Check IC 7900
- Check IC 7906
- Check IC 7100
- Check IC 7900
- Check IC 7906
- Check IC 7100
- Check IC 7202
- Check IC 7200
- Check IC 7202
- Check IC 7200
- Check IC 7100
- Check IC 7403
- Check IC 7100
- Check IC 7500
- Check IC 7502
- Check IC 7200
- Check IC 7202
CL 16532145_050.eps
031201
Figure 5-27