Zenith XBV613 Service Manual - Page 25

Hi-fi Circuit

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6. Hi-Fi CIRCUIT (1) No Sound(EE Mode) No Sound. YES NO Check the SIF.IN of IC801 Pins57. Check the DVD Audio of IC801 NO Pins12, 74. Check the LINE1 Audio of IC801 NO Pins11, 73. Check the LINE2 Audio of IC801 NO Pins9, 71. Check the Vcc of IC801 Pins3, 5, 15, 32, 36, 46, 54. YES Check the IIC Clock and DATA at IC801 Pins37, 38. YES Check the Audio of IC801 Pins78, 80. YES Check the Audio of C804, C854. YES Check JK901. YES NO NO NO NO Check the TU701 SIF Pin13. Check the DVD MODULE. (PMD02 Pins13, 15). Check the Rear Jack. (JK901 Audio in). Check the front Jack. Timer Check the Power 5V, 5.3VA, REG 9V. CN701 2,3,11,12 Check IC501 Pins71, 72. Replace IC801. Replace C804, C854. 3-14

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3-14
6. Hi-Fi CIRCUIT
(1) No Sound(EE Mode)
YES
No Sound.
Check the SIF.IN of IC801 Pins57.
Check the DVD Audio of IC801
Pins12, 74.
Check the LINE1 Audio of IC801
Pins11, 73.
Check the LINE2 Audio of IC801
Pins9, 71.
Check the Vcc of IC801 Pins3, 5, 15,
32, 36, 46, 54.
YES
Check the IIC Clock and DATA at
IC801 Pins37, 38.
YES
Check the Audio of IC801 Pins78, 80.
YES
Check the Audio of C804, C854.
YES
Check JK901.
Check the TU701 SIF Pin13.
NO
Check the DVD MODULE.
(PMD02 Pins13, 15).
NO
Check the Rear Jack.
(JK901 Audio in).
NO
Check the front Jack.
Timer
NO
Check the Power 5V, 5.3VA, REG 9V.
CN701 2,3,11,12
YES
NO
Check IC501 Pins71, 72.
NO
Replace IC801.
Replace C804, C854.
NO
NO