Daewoo NC-8911, Service Manual

Page: 19 / 30

Schematic Diagram
MAIN Section
1
2
3
4
5
7
7
8
1
2
3
4
5
7
7
8
9
9
TO FRONT PC
B
L
R
TO CD PC
B
D904-907
COMPANY: DAT HK LTD.
MODEL: TITLE:MAIN DIAGRAM
DRAWN: CHECKED ：
APPROVED:
DATE:2009.07.04
SIDE:A3
REV:3.0
BEFORE RETURNING THE RECEIVEC TO CUSTOMER .
APPROPPIATE LEAKAGE CURRENT OR RESISTANCE SHOULD BE CONDUCTED TO DETERMINE
THAT EXPOSED PARTS ARE PROPERLY INSULATED FROM THE SUPPLY CIRCUIT.
NOTE:THE COMPONENTS INDENTIFIDE BY MARK
ARE CRITICAL FOR SAFETY REPLACE ONLY WITH SAME TYPE PARTS SPECIFIED
WARNING:FOR CONTINUDE SAFETY,REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURE'S RECOMMENDED PARTS.
L
R
L
R
PSM OPTION TABLE
LOC
W/PSM W/O PSM
D908 DIODE JUMPER
D900-D903
CW401 TABLE
1
2
3
4
5
6
+3.3V
M-POWER/ON
PSM
F-SCL
F-SDA
1
2
3
4
5
6
7
8
TU-L
AGND
TU-R
AMP-MUTE
H/P-IN/L
H/P-IN/R
-9V(SW)
+9V(SW)
GND
CW400 TABLE
TO FRONT PC
B
CD-R
CD-L
AGND
GND
+9V(UN-SW)
1
2
3
4
5
CW402 TABLE
L
R R
L
R
R
L
L
R
L
R
L
NC-891XDU/DE MAIN SCHEMATIC DIAGRAM
GND
HPF
LPF
NC-891XDU/DE
L CH
R CH
L
L
R
R
R
L
R
L
L
R
*Only NC-8913/8915DU(DE)
HPL&LPF OPTION TABLE
JW401
LOCATION NC-8911DU
JW402
X
X
NC-8913/8915DU
+9V(UN-SW) 9
CD-MUTE 6
O
O
AMP2
AMP1
*AMP1 OPTION TABLE
LOCATION
S/T(15WX2) CE(15WX2)
IC801
HR849/HR850
CD7269ACZ CD7269ACZ TDA7292 TDA7292
0 6 5 0 6 5 0 6 5 0 8 6
V 0 5 / F U 0 0 1 V 0 5 / F U 0 0 1 7 1 8 E C / 4 1 8 E C 100UF/25V 100UF/25V
CE900/CE901 2200UF/25V 2200UF/25V 3300UF/35V 3300UF/35V
D900/D901
D902/D903 RL-202 IN5402
RL-202
RL-202
RL-202
IN5402
IN5402
IN5402
NC-8911
S/T(25WX2) S/T(38WX2)
NC-8913
POWER OUTPUT TABLE(* MARK)
LINE_L
AGND
LINE_R
LINE_L
LINE_R
ENCODING OPTION
LINE_L
AGND
LINE_R
7
8
9
IC401
IC402
X
X
O
O
GND
GND
L CH
GND
GND
R CH
SPEAKER JACK PCB
NC-8915
AUX JACK PCB
PSM VCC
PSM OUT
S1
GND
S1
S2
GND
S2
INPUT SENS OPTION TABLE(CE & S/T)
NC-8911 NC-8913 NC-8915 LOCATION
HR422
HR423
HR424
HR425
CE(400MV) S/T(550MV) CE(400MV) S/T(550MV) CE(400MV) S/T(550MV)
8.2K
8.2K
33K
33K
18K
18K
33K
33K
330
330
56K
56K
8.2K
8.2K
39K
39K
330
330
56K
56K
8.2K
8.2K
39K
39K
CE(25WX2) CE(38WX2)
TDA7292
560
100UF/50V
3300UF/35V
IN5402
IN5402
TDA7292
560
100UF/50V
3300UF/35V
IN5402
IN5402
NC-8911 NC-8913 NC-8915 LOCATION
HR438
HR439
HR440
HR441
CE & S/T
18K
120K
18K
120K
0 OHM
CE & S/T CE & S/T
HR442
HR443
HR444
HR445
1.8K
8.2K
1.8K
8.2K
X
0 OHM
1.8K
1.8K
0 OHM
X
0 OHM
1.8K
1.8K
X X
100K 100K
100K 100K
HR817/HR818 X 0 6 5 0 8 6 X 0 6 5 0 8 6
PSM-VCC
LOCATION S/T(15WX2) CE(15WX2)
HR848
HR852
330 OHM X
1 K X
HR853 1 K X
HC816 104 PF X
HC817
104 PF X
NC-8911
S/T(25WX2) S/T(38WX2)
NC-8913
HIGH BOOST OPTION TABLE(* MARK)
NC-8915
CE(25WX2) CE(38WX2)
HR851
330 OHM
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
G
G
SERIAL BUS DECODER & LATCHES
VOLUME &
LOUDNESS
BASS TREBLE
SPKP ATT
LEFT
RIGHT
SPKP ATT
TREBLE BASS
LOUDNESS
VOLUME &
SUPPLY
100K
100K
100K
100K
100K
100K
100K
100K
RB
RB
L-IN1
L-IN2
L-IN3
L-IN4
R-IN1
R-IN2
R-IN3
R-IN4
MUXOUT
R
IN
R
INPUT SELETOR & GAIN CONTROL
LOUD(R
)
BIN(R
)
BASSOUT(R
)
TREBLE(R
)
RE
F
AGND
VDD
ROUT
SDA
SCL
DGND
LOUT
TREBLE(L
)
BIN(L
)
BASSOUT(L
)
LOUD(L
)
IN
L
MUXOUT
L
1
2
3
4 5 6 7
8
9
10
11
1
2
13
14
15
16
1
7
1
8
1
9
2
0
2
1
2
2
23
24
25
26
27
2
8 IC400
SC7314S
+
CE400
2.2UF/50V
+
CE401
2.2UF/50V
+
CE402
2.2UF/50V
+
CE403
2.2UF/50V
+
CE404
2.2UF/50V
+
CE405
2.2UF/50V
+
CE406
2.2UF/50V
HC405
104P
HC404
104P
HC403
104P
HR401
5.6K
HC401
272P
+ CE412
10UF/50V
+
CE413
100UF/16V
HC400
223P
HR400
82
+
CE410
2.2UF/50V
HC412
100P
HR417
100
HR416
100
HC413
100P
+
CE411
2.2UF/50V
+
CE408
2.2UF/50V
HC407
104P HC408
104P
HC409
104P
HR402
5.6K
HC402
272P
HR421
100K
HR420
100K
HR419
1K
HR418
1K
D900 IN5402(*)
D901 IN5402
D902
IN5402
D903
IN5402
CM900
104P
CM901 104P
+
CE900
3300UF/35V(*)
D904 RL202
D905 RL202
CM902 104P
D906 RL202
D907 RL202
CM903 104P
+ CE902
2200UF/35V
+ CE903
470UF/25V
INPUT
GND
OUTPUT
1
2
3
IC900
CW7809
HC901 104P
E C
B
HQ900
C3875Y
HR900
470
HR901
1K(1/4W)
HR904
2.2K(1/4W)
HZ900
10V
+
CE904
47UF/16V
HC900
223P
E C
B
Q900
KTA1273Y
E
C
B
HQ901
A111S
E
C
B
1
2
3
HQ902
C107S
HZ901
HR902
470
HD900
KDS160
+
CE905
470UF/16V
HC902
104P
D908
IN4148
1
2
3
J401
AUX JACK
HC415
100P
HR425
39K
HC417
100P
HR423 3.9K
HC414
100P
HR424
39K
HC416
100P
HR422 3.9K
HC418
104P
HC422
392P
HR449
5.6K
HR451
5.6K
+
-
+
-
A
B
AOU
T
AIN
-
AIN
+
V
-
BIN
+
BIN
-
BOU
T
V +
1 2 3 4
5 6 7 8
IC402
4558
HC429
182P
HR452
HR446 100
HC430 182P HR454
+
CE422
47UF/16V
+
CE423
47UF/16V
HR447
100
HR450
5.6K
HR453
5.6K
+
CE424
2.2UF/50V
+
CE425
2.2UF/50V
+
CE818
2.2UF/50V
+
CE819
2.2UF/50V
HR829
1K
HR830
1K
HR856
100K
HR857
100K
HC818
152P
HC819
152P
HR834
1.8K
HR828
1.8K
E
C
B
HQ808
D1304
E
C
B
HQ809
D1304
HR833
4.7K
HR832
4.7K
B
C
E
HQ807
A107S
+
CE813
47UF/25V
HR831
22K
B
C E
HQ806
A107S
HD805
KDS160
HD806
KDS160
+
CE810
47UF/25V
HD809
KDS160
HR805
1K
HR806
1K
HR807
100K
HR808
100K
HC800
182P
HC801
182P
HR803 1.8K
HR804 1.8K
E
C B
HQ802
D1304
E
C
B
HQ803
D1304
HR802
4.7K
HR801
4.7K
HD807
KDS160
E C
B
Q902
KTA1274Y
HR909
4.7K
HR908
10K
E
C B
1
2
3
HQ903
C107S
1
2
3
4
5
6
7
8
9
CW400
1
2
3
4
5
6
7
8
9
CW402
HC423 392P
+
-
+
-
A
B
AOU
T
AIN
-
AIN
+
V
-
BIN
+
BIN
-
BOU
T
V
+
1 2 3 4
5 6 7 8
IC401
4558
HC421
392P
HR436 2.7K
HR429 5.6K
HR435 100
+
CE417
47UF/16V
HR433
470
+
CE420
2.2UF/50V
HR432
470
+
CE421
2.2UF/50V
HR428
5.6K
HR434 100
+
CE416
47UF/16V
HR437 2.7K
HC424
392P
IN2-
GND
11
10
9
8
7
6
5
4
3
2
1
-
+
+
-
MU/ST +VCC
IN1
IN2
-VCC
OUT2
IN1-
OUT1
IC800
TDA7292(*)
+
CE802
2.2UF/50V
+
CE803
2.2UF/50V
HD811
KDS160
HR813
15K
+ CE806
1UF/50V
HC80
4
104P
HR812
18K
HR811
3.3K
E
C B
Q800
C3198
+
CE805
10UF/50V
HR810
100K
HR809
4.7K
HC805
104P
+
CE807
100UF/50V(*)
HR815
18K
HC808
10P
HR818
680(*)
HR819
HR821
HC810
HR814
18K
HC807
10P
HR817
680(*)
HR816
HR820
HC809
CM801
104P
HR823
4.7(1/4W)
CM800
104P
HR822
4.7(1/4W)
HC803
104P
+
CE804
100UF/50V(*)
CM802 104P
CM803
104P
IN2-
GND
11
10
9
8
7
6
5
4
3
2
1
-
+
+
-
MU/ST +VCC
IN1
IN2
-VCC
OUT2
IN1-
OUT1
IC801
TDA7292
HD810
KDS160
HR845
15K
+ CE812
1UF/50V
HC811
104P
HR844
18K
HR843
3.3K
E
C
B
HQ816
C3198
+
CE811
10UF/16V
HR842
100K
HR841
4.7K
HD808
KDS160
HC812
104P
+
CE81
4
100UF/50V
HR847
18K
HC815
10P
+
CE816 22UF/50V
HR850
560(*)
HR851
HR853
HC817
HR846
18K
HC814
10P
+
CE815 22UF/50V
HR849
560(*)
HR848
HR852
HC816
CM819
104P
HR855
4.7(1/4W)
CM818
104P
HR85
4
4.7(1/4W)
HC857
104P
+
CE817
100UF/50V
CM804 104P
CM805 104P
E
C
B
HQ819
C107
E C
B
1 2
3
HQ818
A107
HR840
1K
HR837
2.2K
+
CE901
3300UF/35V(*)
JW401 JW402
1
2
3
4
5
6
7
8
CW902
+ CE409
2.2UF/50V
HR409
100K
HR410
100K
HR404
1K
+
CE407 2.2UF/50V
HR407
100K
HR406
100K
HR403
1K
HR907
HR906
HR95
1
4.7K
1
2
3
4
5
6
7
8
CN800
1
2
3
4
5
6
7
8
CW800
1
2
3
4
5
6
7
8
J800
1
2
3
CW403
1
2
3
CN403
HR430
10K
HR431
10K
HR457
0
HR458
0
HC428
392P
HC431 392P
HR426
1K
HR427
1K
HR438
*
HR439
*
HR440
*
HR441
*
HR442
*
HR443
*
HR444
*
HR445
*
HR905
180(1/4W)
1
2
3
4
5
6
CW401
2
F-SCL
F-SDA
+9V(UN-SW)
CD-L
CD-R
H/P-IN/R
H/P-IN/L
AUX-L
AUX-R
03
M-POWER/ON
-9V(SW)
+9V(SW)
M-POWER/ON
02
+9V(UN-SW)
+9V(SW)
M-POWER/ON
+9V(SW)
-9V(SW)
H/P-IN/R
H/P-IN/L
AD-MUTE
TU-R
TU-L
+9V(UN-SW)
AGND
AGND
+9V(SW)
AD-MUTE
+9V(UN-SW)
-9V(SW)
-9V(SW)
+9V(UN-SW)
CD-MUTE
PSM
M-POWER/ON
F-SCL
F-SDA
CD-MUTE
+9V(SW)
+9V(SW)
AUX-L
TU-R
TU-L
CD-L
CD-R
AUX-R
PSM-VCC
PSM