Toshiba RD-87DTKF, Service Manual

Page: 27 / 75

1-9-8 E2J70TR
Is SIF signal inputted to Pin(2) of IC001?
Are the audio signal outputted
to Pin(30,31) of IC001?
Replace TU1701.
Replace IC001.
Yes
Check the line between
Pin(30,31) of IC001 and
Pin(84,85) of IC005, and
service it if defective.
Yes
No
No
Check the AL+5V(2) , AL+9V
line and service it if defective.
Replace IC005.
Yes No
FLOW CHART NO.23
Audio E-E does not appear normally.
Are the audio signals inputted to each pin of
IC005?
Check the line between audio input terminal and
each pin of IC005, and service it if defective.
Are the audio signals outputted to Pin(79,80) of
IC005?
Yes
Are the audio signals outputted to Pin(1,7) of
IC1203?
Yes
Yes
No (Rear,
Front
or DTV
input)
No (Tuner)
Replace IC1203.
No
No
IC005 AUDIO-IN1 (AV1) 93,94PIN
IC005 AUDIO-IN1 (FRONT) 91,92PIN
IC005 AUDIO-IN2 (AV2) 89,90PIN
IC005 DTV-AUDIO-IN 81,82PIN
IC005 TUNER-AUDIO 84,85PIN
IC005
→
JK1206 93,94PIN
IC005
→
JK1202,
JK1203
91,92PIN
IC005
→
JK1207 89,90PIN
IC005
→
CN1751
29,30PIN
81,82PIN
AUDIO-IN1 (AV1)
AUDIO-IN1 (FRONT)
AUDIO-IN2 (AV2)
DTV-AUDIO-IN
Is 5V voltage supplied to Pin(63) of IC005?
Is 9V voltage supplied to Pin(75) of IC005?
Continued to B on the next page.