Sony RDR-VX521 - Page 119

7-23
Check IC808
(Pin #187, 188)
Check AIC4 (Pin #1, 7)
Check peripheral parts of JK801
Check VCC of IC808 and peripheral
parts of Clock oscillation
(IC302 Pin # 1, 2, 14)
No
No
Check VCC and peripheral parts of AIC4.
Check applicatin of JACK 1
Check IC811 (Pin #11, 16)
No
Yes
Yes
Yes
No Analog Audio Output
Check Audio input signal
1) Line 1 Audio input : IC808 Pin #200, 201
2) Line 2 Audio input :IC808 Pin #203, 204
3) VHS Play Audio input : IC808 Pin #198,
199, IC811 Pin #2,11
4) Tuner Audio inut : TM401 Pin #13,
IC808 Pin #47
Check VCC and peripheral parts of IC811