Hi-Fi Circuit - Zenith D35 Service Manual

7. Hi-Fi CIRCUIT

(1) No Sound(EE Mode)
No Sound.
YES
Check the TU Audio of IC801
Pins1, 3.
Check the DVD Audio of IC801
Pins4, 5.
Check the AV1 Audio of IC801
Pins6, 7.
Check the AV2 Audio of IC801
Pins10, 11.
Check the Vcc of IC801 Pins34, 40,
IC802 Pin4.
Check the IIC Clock and DATA at
IC801 Pins42, 43, IC802 Pins32, 33.
Check the Audio of IC801 Pins16, 17.
Check the Audio of IC802 Pins22, 26.
Check the JK801.
YES
YES
YES
NO
Check the IC751 Pins30, 31.
NO
NO
NO
YES
Check the Power 5.2V, 12V.
NO
NO
Check the IC501 Pins90, 91.
NO
NO
3-14
Check the DVD MODULE.
(P801 Pins3, 5).
Check the Jack.
(OUTPUT JK801).
Check the AV2 Jack.
(PM401 Pins1, 2).
Replace IC801.
Replace IC802.