Toshiba D-R560KU, Service Manual

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1-8-8 E7M70TR
Is SIF signal inputted to Pin(21) of IC1701?
Are the audio signal outputted
to Pin(29,30) of IC1701?
Replace TU1701.
Replace P1
(AV ASSEMBLY).
Yes
Check the line between
Pin(29,30) of IC1701 and
Pin(2,15) of IC1101, and
replace P1(AV ASSEMBLY)
if defective.
Yes
No
No
Are the audio signal inputted to Pin(15,16)
of CN1752?
Replace P3
(Board DTV
Module Unit).
No (DTV)
Check the line between
Pin(1,12) of IC1101 and
Pin(15,16) of CN1752,
and replace P1(AV
ASSEMBLY) if defective.
Yes
No
Check the line between
Pin(9,10) of IC1101 and
Pin(39,40) of IC1501, and
replace P1(AV ASSEMBLY)
if defective.
Replace P1(AV
ASSEMBLY).
Yes No
FLOW CHART NO.22
Audio E-E does not appear normally.
Are the audio signals inputted to each pin of
IC1101?
Check the line between audio input terminal and
each pin of IC1101, and service it if defective.
Are the audio signals outputted to Pin(3,13) of
IC1101?
Yes
Are the audio signals outputted to Pin(1,7) of
IC1102?
Yes
No (Rear
or Front
input)
No (Tuner)
Replace P1(AV ASSEMBLY).
No
No
IC1101 AUDIO-IN1 (REAR) 4,11PIN
IC1101 AUDIO-IN2 (FRONT) 5,14PIN
IC1101 TUNER-AUDIO 2,15PIN
IC1101 DTV-AUDIO 1,12PIN
AUDIO-IN1 (REAR)
AUDIO-IN2 (FRONT) IC1101
→
JK2106 4,11PIN
Are active level of Pin(9,10) of IC1101 become
as shown below?
IC1101
→
JK2103, JK2104 5,14PIN
INPUT
TUNER
LINE(REAR)
LINE(FRONT)
9PIN 10PIN
H L
H H
L H
DTV L L
Continued to B on the next page.