Toshiba RD-X V45KB, Service Manual

Page: 38 / 135

1-11-15 E439ATR
FLOW CHART NO.11
Hi-Fi E-E audio does not operate normally.
No
Check the periphery of JK1504 from Pin(30) of
IC1506 and service it if defective.
Are the video signals outputted to the specific
output terminal?
Are the composite video signals outputted to the
VIDEO-OUT terminal (JK1504)?
Are the composite video signals outputted to the
VIDEO-OUT terminal (JK2001)?
Yes
IC1506 30PIN VIDEO-OUT 1 (AV1)
IC1506 22PIN VIDEO-OUT 2 (AV2)
Are the video signals outputted to each pin
of IC1506?
No
No
Check the periphery of JK2001 from Pin(22) of
IC1506 and service it if defective.
No
Check the AL+5V(2) line
and service it if defective.
Replace IC1506.
Yes No
Is 5V voltage supplied to Pin(27,29,47,63) of
IC1506?
E
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(84,85) of IC1506, and
service it if defective.
Yes
No
No
Are the audio signals inputted to each pin of
IC1506?
Check the line between audio input terminal and
each pin of IC1506, and service it if defective.
Are the audio signals outputted to Pin(69,70) of
IC1506?
Yes
Yes
No (Rear
or Front
input)
No
(Tuner)
IC1506 AUDIO-IN1 (AV1) 93,94PIN
IC1506 AUDIO-IN1 (FRONT) 91,92PIN
IC1506 AUDIO-IN2 (AV2) 89,90PIN
IC1506 TUNER-AUDIO 84,85PIN
IC1506
→
JK1504 93,94PIN AUDIO-IN1 (AV1)
IC1506
→
JK3002,
JK3003
89,90PIN
IC1506
→
JK2001 84,85PIN
AUDIO-IN1 (FRONT)
AUDIO-IN2 (AV2)
Continued to F on the next page.
Check the AL+5V(2) , AL+9V
line and service it if defective.
Replace IC1506
Yes No
Is 5V voltage supplied to Pin(27,29,47,63) of
IC1506?
Is 9V voltage supplied to Pin(75) of IC1506?