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TS4
51
[Analog Audio section]
((F))
↓
[Check the Power supplied properly.]
↓
[Examine IC4002(AK4319A-VM D/A converter) input]
(IC4002:Pin 6: SDATA)
↓
<How was the result?>
↓
[Examine IC4002(AK4319A-VM D/A converter) output.]
(IC4002:Pin 18/19: L, IC4002:Pin 16/17: R)
↓
<Are they OK?>
↓
[Examine IC4003(NJM3404AM OP. Amplifier) output]
(IC4003:Pin 1: L, IC4003:Pin 7: R)
↓
<How is the result?>
↓
[Examine IC4001(STV6411A:Audio/Video Switch) Audio outputs.]
↓
[Select where to go from below.]
↓
[Trace the line going up to IC2001 OMEGA:STi5510A.]
[Replace IC4002]
[Replace IC4003]
↓
<How is the result?>
↓
<Q4014/Q4017(UMD2N)Pin 3: High?>
(TV_MUTE/VCR_MUTE)
↓
[Examine around the Muting circuitry]
(Q4015/Q4016/Q4018/Q4019/Q4030/D4012/D4013/Q4014/Q4017)
[Replace IC4001]
[Add solder to the CN4001]
Audio output terminals which are NG
TV-SCART & VCR-SCART & CINCI
TV-SCART & VCR-SCART
TV-SCART & CINCI
TV-SCART
VCR-SCART
CINCI
Others
Examine: IC4001
Pin 2:
TV_L
‡
‡
‡
‡
‡
Pin 64:
TV_R
‡
‡
‡
‡
‡
Pin 62:
VCR_L
‡
‡
‡
‡
Pin 60:
VCR_R
‡
‡
‡
‡
Pin 59:
RCA_L
‡
‡
‡
‡
Pin 58:
RCA_R
‡
‡
‡
‡
→
→
→
→
→
→
→
NO
NO
NO
NG
NO
OK
YES
(From page 48)
OK
YES
OK
Содержание TS4
Страница 13: ...TS4 13 A B C D 5 6 7 8 5 6 7 8 3 6 A A 6 6 A 2 6 A 2 6 A 2 6 IC3003 16M DRAM ...
Страница 21: ...TS4 21 A B C D 5 6 7 8 5 6 7 8 3 10 CARD ASSY CN8502 CN8501 CN8503 A 2 6 CN2003 CARD ASSY BWE1080 C C ...
Страница 23: ...TS4 23 A B C D 5 6 7 8 5 6 7 8 CN6002 6 6 A ...
Страница 25: ...TS4 25 A B C D 5 6 7 8 5 6 7 8 4 2 CARD ASSY CARD ASSY C SIDE A CN2003 A BNP1335 B C ...
Страница 28: ...TS4 28 A B C D 1 2 3 4 1 2 3 4 A MAIN ASSY A ...
Страница 29: ...TS4 29 A B C D 5 6 7 8 5 6 7 8 A BNP1323 B SIDE B ...