Toshiba D-RW2SU Service Manual page 24

FLOW CHART NO.22
Audio E-E does not appear normally.
Are the audio signals inputted to each pin of
IC1101?
IC1101 4,11PIN AUDIO-IN1 (REAR)
IC1101 5,14PIN AUDIO-IN2 (FRONT)
IC1101 2,15PIN TUNER-AUDIO
Are the audio signals outputted to Pin(3,13) of
IC1101?
Are the audio signals outputted to Pin(1,7) of
IC1102?
Continued to B on the next page.
Yes
Yes
No (Rear
Check the line between audio input terminal and
or Front
each pin of IC1101, and service it if defective.
input)
IC1101 4,11PIN
IC1101 5,14PIN
No (Tuner)
Is SIF signal inputted to Pin(21) of IC1701?
Are the audio signal outputted
to Pin(29,30) of IC1701?
Check the line between
Pin(29,30) of IC1701 and
Pin(2,15) of IC1101, and
service it if defective.
No
Are active level of Pin(9,10) of IC1101 become
as shown below?
INPUT
TUNER
LINE(REAR)
LINE(FRONT)
Yes
Replace IC1101.
No
Replace IC1102.
1-8-8
→ JK2106 AUDIO-IN1 (REAR)
AUDIO-IN2 (FRONT)
→ JK2103, JK2104
Yes
Replace TU1701.
No
Yes
Replace IC1701.
9PIN 10PIN
H L
H H
L H
No
Check the line between
Pin(9,10) of IC1101 and
Pin(39,40) of IC1501, and
service it if defective.
No
E7A70TR