Daewoo DSJ-4710CRU Service Manual - page 31
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6. TROUBLE SHOOTING
When no sound is heard
Check IC601 sound signals.
#27, #28
NO
NO
NO
NO
NO
YES
YES
YES
YES
NO
NO
Check C604,
605, D603,
C606, CC612
RC605, RC608
Chack
IC601#47, #48
IC101#32, #33
YES
YES
Check IC601 B+
#11, #12, #13
#65, #66, #80
Check IC601
Reset #21
Check IC601
Reset #21
Check
C603, RC604
Check
DC601, DC602
RC602, RC603
Check 601
C611, CC615, L602,
C602, CC607, L603,
C601, CC601,
RC601
Check
IC101
#25,
#27
Check
CC111,CC113
LA12, LA13
CCA12,
CCA13
RA15, RA16
RA10, RA11
Check
C120, C122
LA18, LA19
CCA18,
CCA19
RA34, RA35
RA2, RA3
Check
C106, C107
LA14, LA15
CCA14,
CCA15
RA12, RA5
RA27, RA28
Check
C125, C127
Z120, Z121
RC134,
RC135
RC136,
RC137
Check
C107, C109
RA22, RA33
RA17, RA18
ZA11, ZA12
Check
IC101
#44,
#46
Check
IC101
#40,
#42
Check
IC101
#2,
#4
Check
IC101
#8,
#10
Check
RC606
RC607
C608
C609
Check B+
IC601
#38, #39, #40
Check IC601 input sound signals.
SIF:#67 A/V:#47, #48
YES
NO
NO
NO
NO
YES
NO
NO
NO
NO
NO
NO
Check IC601
#71, #72, X-TAL
Check
CC614, C610
CC613, C607
and Replace IC601
Check
X601, CC605
CC606
When IC601 #67 SIF
doesn’t work, Check
U1 Tuner
When IC601 #67 SIF
doesn’t work, Check
U1 Tuner
END