Zenith XBV243 Service Manual page 24

TROUBLESHOOTING (CONTINUED)
6. Hi-Fi CIRCUIT
(A) No Sound(EE Mode)
No Sound.
YES
Check the TU Audio of IC801
Check the DVD Audio of IC801
Check the AV1 Audio of IC801
Check the AV2 Audio of IC801
Check the Vcc of IC801 Pins 34, 40,
IC802 Pin 4.
Check the IIC Clock and DATA at
IC801 Pins 42, 43, IC802 Pins 32, 33.
Check the Audio of IC801 Pins 16, 17.
Check the Audio of IC802 Pins 22, 26.
Check JK801.
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ELECTRICAL
Pins 1, 3
Pins 4, 5.
Pins 6, 7.
Pins 10, 11.
YES
YES
YES
YES
NO
NO
NO
NO
YES
N O
N O
N O
N O
3-12
Check IC751 Pins 30, 31.
Check the DVD MODULE.
(P8D01 Pins 3, 5).
Check the Rear Jack.
(JK801 Audio in).
Check the front Jack.
(PM401 Pins 1, 2).
Check the Power 5.2V, 12V.
Check IC501 Pins 90, 91.
Replace IC801.
Replace IC802.
D35E COMBO - ELECTRICAL