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3-7
ELECTRICAL TROUBLESHOOTING GUIDE OF AUDIO PART
FLD display check
Refer to
SMPS troubleshooting.
Check CN102 assembly.
OK
OK
OK
IC100 Pin3 --> Pin3 STB
Pin4 --> Pin1 CLK
Check data output.
Check
Pin2 --> DO --> DATA input.
When 3.3 VA fails,
check D100 SDB0540 input
and output power.
F1+, F2- both terminals: over 3.7 V
Check power VKK: over -30 V.
Replace the related part.
Replace the related part.
FLD light on?
Replace the related part.
Check
CN103 Pin1, 2, 3
power.
NO
NO
NO
NO
NO
NO
NO
Check
power of each Pin.
Check
the related part.
Check
the related part.
Check
IC101 --> IC301
DATA communication
Pin3 --> Pin3 STB
Pin2 --> Pin2 DO
Pin4 --> Pin1 CLK
Check
IC301 MC3501 power
Pin50 VKK : -30 V
Pin9, 51 : +3.3 VA
Check
CN102 connection
condition and power F1+, F2-
both terminals: over 3.7V
Check power VKK: over -30V
Check Pin25: 3.3VA
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
2. FLD DISPLAY CHECK
OK
Содержание FA162
Страница 15: ...2 2 MEMO ...
Страница 19: ...A60R A60L 4 SPEAKER SECTION FAS162F ...
Страница 46: ...3 27 7 AUDIO PART I2S ...
Страница 47: ...3 28 MEMO ...
Страница 61: ...3 55 3 56 2 MAIN P C BOARD TOP VIEW ...
Страница 62: ...MAIN P C BOARD BOTTOM VIEW 3 57 3 58 ...
Страница 63: ...3 59 3 60 3 FRONT P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 64: ...3 61 3 62 4 TOUCH P C BOARD TOP VIEW 5 TOUCH SLIDE P C BOARD TOP VIEW BOTTOM VIEW BOTTOM VIEW ...
Страница 65: ...3 63 3 64 MEMO MEMO ...