Toshiba D-VR41KF, Руководство по обслуживанию

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1-10-9 E9BA1TR
Is SIF signal inputted to Pin(2) of IC1?
Are the audio signal outputted
to Pin(30,31) of IC1?
Replace TU1501.
Replace IC1.
Yes
Check the line between
Pin(30,31) of IC1 and
Pin(20,24) of IC1518, and
service it if defective.
Yes
No
No
Check the AL+12V(1) line
and service it if defective.
Replace IC1518.
Yes No
FLOW CHART NO.7
Audio E-E does not appear normally.
Are the audio signals inputted to each pin of
IC1518?
Check the line between audio input terminal and
each pin of IC1518, and service it if defective.
Check the line between Pin (1,12) of IC1501 and
Pin (23,27) of IC1518, and service it if defective.
Are the audio signals outputted to Pin(23,27) of
IC1518?
Yes
Are the audio signals outputted to Pin(1,7) of
IC1506?
Yes
Yes
Yes
Yes
Yes
No (Rear
or Front
input)
No (Tuner)
Replace IC1506.
No
No
No
Check the line between Pin (5,14) of IC1501 and
audio input terminal (JK1202, JK1203), and service
it if defective.
No
IC1518 AUDIO-IN1 (AV1) 10,16PIN
IC1518 AUDIO-IN2 (AV2) 8,14PIN
IC1518 TUNER-AUDIO 20,24PIN
Are the audio signals inputted to each pin of
IC1501?
IC1501 TUNER-AUDIO/AUDIO-IN1,2 1,12PIN
IC1501 AUDIO-IN-F (FRONT) 5,14PIN
IC1518
→
JK1502 10,16PIN
IC1518
→
JK2001 8,14PIN
AUDIO-IN1 (AV1)
AUDIO-IN2 (AV2)
Is 12V voltage supplied to Pin(2,4) of IC1518?
Check the AL+5V(1) and
AL-5V line, and service it if
defective.
Replace IC1501.
Yes No
Are the audio signals outputted to Pin(3,13) of
IC1501?
Is 5V voltage supplied to Pin(16) of IC1501?
Is -5V voltage supplied to Pin(7) of IC1501?
Continued to "C" on the next page.
Are the analog audio signals outputted to each pin
of CN1502?
CN1502 14PIN AUDIO (L)-OUT
CN1502 16PIN AUDIO (R)-OUT
No
Replace the DVD MECHANISM & DVD MAIN
BOARD ASSEMBLY.