Zenith XBR413 - Hi-Fi CIRCUIT

3-17
VCR ELECTRICAL TROUBLESHOOTING GUIDE
7. Hi-Fi CIRCUIT
(1) No Sound(EE Mode)
YES
No Sound.
Check the TU Audio of IC801
Pins2, 3.
Check the DVD Audio of IC801
Pins4, 5.
Check the AV1 Audio of IC801
Pins6, 7.
Check the AV2 Audio of IC801
Pins8, 9.
Check the Vcc of IC801 Pins34, 40,
IC802 Pin4.
YES
Check the IIC Clock and DATA at
IC801 Pins42, 43
YES
Check the Audio of IC801 Pins16, 17.
YES
Check the JK601.
Check the IC701 Pins30, 31.
NO
Check the VDR MODULE.
(PMD02 Pins23, 25).
NO
NO
Check the RCA Jack.
(JK601 Scart1 Audio in L, R).
NO
Check the VDR MODULE.
(PMD02 Pins27, 29).
Check the Power 5.2V, 12V.
YES
NO
Check the IC501 Pins71, 72.
NO
Replace IC801.
NO