Hi-Fi Circuit - Zenith XBR411 Manual

VCR ELECTRICAL TROUBLESHOOTING GUIDE

7. Hi-Fi CIRCUIT

(1) No Sound(EE Mode)
No Sound.
YES
Check the DVD Audio of IC801
Pins12, 74.
Check the AV1 Audio of IC801
Pins11,73.
Check the AV2 Audio of IC801
Pins9, 71.
Check the Vcc of IC801 Pins3, 54.
Check the IIC Clock and DATA at
IC801 Pins37, 38.
Check the Audio of IC801 Pins78, 80.
Check the JK601.
YES
YES
YES
YES
NO
NO
Check the RCA Jack.
(JK601 Scart1 Audio in L, R).
NO
Check the VDR MODULE.
(PMD02 Pins27, 29).
NO
NO
Check the IC501 Pins71, 72.
NO
3-17
Check the VDR MODULE.
(PMD02 Pins23, 25).
Check the Power 9V.
Replace IC801.