Schematic Diagram - Daewoo NC-8913 Service Manual

1

Schematic Diagram

MAIN Section
2
NC-891XDU/DE MAIN SCHEMATIC DIAGRAM
3
2
4
HPL&LPF OPTION TABLE
LOCATION NC-8911DU NC-8913/8915DU
JW401 X
O
JW402 O X
X
IC401 O
IC402 X O
5
INPUT SENS OPTION TABLE(CE & S/T)
LOCATION NC-8911 NC-8913 NC-8915
CE(400MV) S/T(550MV) CE(400MV) S/T(550MV) CE(400MV) S/T(550MV)
HR422 8.2K 18K 330 8.2K 330 8.2K
HR423 330 8.2K 330 8.2K
8.2K 18K
HR424 33K 33K 56K 39K 56K 39K
HR425 33K 33K 56K 39K 56K 39K
+9V(SW)
7
AUX-R
HR422 3.9K
AUX JACK PCB
J401
R HC414
1 3 3 HR424 HC416 HC418
100P 39K
100P 104P
3 2 2
2 1 1
L
HC415 HR425 HC417
7
CN403 CW403
100P 39K 100P
AUX JACK
AUX-L
HR423 3.9K
CW401 TABLE CW400 TABLE
6 PSM 1 TU-L
2 AGND
5 +3.3V
8
3 TU-R
4 M-POWER/ON
3 GND 4 AMP-MUTE
2 F-SCL 5 H/P-IN/L
6 H/P-IN/R
1 F-SDA
7 -9V(SW)
8 +9V(SW)
9 +9V(UN-SW)
+9V(SW)
9
CW401 H/P-IN/L
PSM-VCC
6 H/P-IN/R
PSM
5
F-SDA
M-POWER/ON
4
F-SCL
3
2 F-SCL
F-SDA
1
LINE_L
CW400
TU-L
1 LOCATION NC-8911 NC-8913 NC-8915
AGND
2 CE & S/T CE & S/T CE & S/T
TU-R
3
HR438 18K 0 OHM 0 OHM
AD-MUTE
4 HR439 X X
120K
H/P-IN/L
5 HR440 18K 0 OHM 0 OHM
H/P-IN/R
X
6 HR441 120K X
-9V(SW)
7 HR442 1.8K 1.8K
1.8K
+9V(SW)
8 HR443 8.2K 100K 100K
9 +9V(UN-SW) 1.8K
HR444 1.8K 1.8K
HR445 100K
8.2K 100K
CE400
2.2UF/50V
AUX-L
L-IN1
16
HR440
CE401
100K
TU-L * 2.2UF/50V
L-IN2
15
CE402
HR442 100K
CD-L
* 2.2UF/50V
L-IN3
14
100K
L-IN4
13
CE403
100K
AUX-R 2.2UF/50V
INPUT SELETOR & GAIN CONTROL
R-IN1
11
CW402 HR438 CE404
CD-R 100K
1 TU-R * 2.2UF/50V
R-IN2
AGND 10
2
CD-L HR444
3 100K
CD-R * CE405
GND
R-IN3
4 9
+9V(UN-SW)
5
2.2UF/50V 100K
CD-MUTE
6
R-IN4
LINE_L 8
7
AGND
8 100K
LINE_R
9
ENCODING OPTION
SC7314S
CW402 TABLE
1 CD-R
2 AGND
3 CD-L
4 GND
LINE_R
5 +9V(UN-SW)
6 CD-MUTE
7 LINE_L
8 AGND
9 LINE_R
HR426 HR433
HR435 100
-9V(SW)
1K
470
HR436 2.7K
HC421
L
CE420
2.2UF/50V
392P
CE417
+
47UF/16V
-
HPF
A IC401
+
4558
+
B
-
R HC422
HR432
392P
470
CE421
+ CE416 2.2UF/50V
47UF/16V
HR437 2.7K
HR434 100
-9V(SW)
HR446 100 HR452
CE422
47UF/16V +
HC431 392P HR458
L
HR449 0
HR451
5.6K
5.6K
-
A
+
+
B
- IC402
4558
HR453
R 5.6K
HR457
HR450
5.6K
HR454
0
+
HC428
392P
HR447
100
R
L
HR416
HR417
HR404
100
100
1K
HC413
100P
HC412
HR402 100P
5.6K
HR409 HR410
HR430
100K 100K
10K
HC407
104P HC408 HC409 HC402
+
+
104P 104P 272P
RB
SPKP ATT
VOLUME & LOUT
BASS TREBLE 24
G
LEFT
LOUDNESS
DGND
25
SERIAL BUS DECODER & LATCHES
SCL
27
SDA
26
VOLUME & SPKP ATT
BASS TREBLE ROUT
G
23
LOUDNESS RIGHT
2.2UF/50V
VDD
1
RB
SUPPLY
HC400
AGND 223P
2
IC400
CE412 +
HC405 HC404 HC403 HC401
+ +
104P 104P 272P 10UF/50V
104P
HR401
5.6K
HR407 HR406
100K 100K
BEFORE RETURNING THE RECEIVEC TO CUSTOMER .
HR403
1K 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.
HR803 1.8K
L L
HR804
1.8K
R R
02 HR801
B
4.7K
HR802
4.7K
*Only NC-8913/8915DU(DE)
L
CE424
2.2UF/50V
LPF
HR834
1.8K
L
R
R
HR828 HQ808
D1304
1.8K
CE425
2.2UF/50V E
B
C HQ809
HR832
+9V(UN-SW) D1304
4.7K
E
B
C
HR833
HD806 4.7K
HQ806
KDS160
A107S
R
+ C
B
CE810
L
47UF/25V E
HD805
KDS160 HQ807
A107S
CD-MUTE
HR831 +
CE813
22K
47UF/25V
HD809
AD-MUTE
KDS160
+9V(UN-SW)
HD807
KDS160
M-POWER/ON
HR431
10K
PSM
+9V(SW)
PSM OPTION TABLE
LOC W/PSM W/O PSM
D908 DIODE JUMPER
PSM-VCC
+
CE900
HR419
3300UF/35V(*)
1K
+9V(UN-SW)
CE411
2.2UF/50V +
CE901
HR421
3300UF/35V(*)
100K
+9V(SW)
Q902
KTA1274Y
HR418 HC901 104P
HR420
1K HR908
100K IC900
HR909
10K
4.7K CW7809
3 OUTPUT INPUT 1
M-POWER/ON HQ903 GND
CE410 + + CE902
C C107S HC902 CE905
3 B
2200UF/35V
+9V(SW) 104P 470UF/16V
E
HD900
HR400 KDS160
+ CE903
82 Q900
+
-9V(SW)
KTA1273Y 470UF/25V
CE413
HQ900
HR902 HR901 HR905
100UF/16V
1K(1/4W) C3875Y
470 180(1/4W)
HQ901
A111S
E HC900
HR900
M-POWER/ON 223P
B
C
470
+
03
CE904
3 C
B
47UF/16V HR904
HQ902
E
C107S
2.2K(1/4W)
+
CE806
HR813
1UF/50V
15K
+
HC805
HR805 B C
104P
1K Q800 E
L
CE805 C3198
+
HR810
R
10UF/50V 100K
HR806
5 3
1K
MU/ST +VCC
L
HQ802 L
IN1
E D1304 7 +
OUT1
4
C CE802 -
2.2UF/50V
HQ803
HR807 HR814
E HC800
100K
18K
B D1304 182P
C
R IN1-
8
GND
9
10
IN2-
HR808 HC801 HR815
100K 182P 18K
R -
2
OUT2
11 +
IN2
IC800
CE803
-VCC
TDA7292(*)
2.2UF/50V 1 6
HC803
CE804
100UF/50V(*)
+
104P
+
CE812
HR845
1UF/50V
15K
+
HR841
4.7K
HC812
C
B
104P
HQ816
E
CE811 C3198 HC811
104P HD810
HR842
+
100K KDS160
HR844
HR829 HR843
18K
10UF/16V
1K 3.3K
5 3
MU/ST +VCC
L L
IN1
7 + OUT1
4
HR830 CE818 -
1K 2.2UF/50V
HR846
HR856 HC818
18K
100K 152P
IN1-
8
9 GND
10
IN2-
HR857
HC819
100K
1 2 152P HR847
18K
CE819
HQ818
2.2UF/50V
A107 R -
R 2
11 + OUT2
IN2
IC801
-VCC
TDA7292
1 6
HR840
1K
HC857
C CE817
B
HQ819 + 100UF/50V
E 104P
C107
CM900 104P
D900 IN5402(*)
D901 IN5402
D902 IN5402
D900-D903
D903 IN5402
8 S2
CM901 104P
7 GND
6 S2
CM902 104P
5
S1
4
GND
D904 RL202 3 S1
2 PSM OUT
1
D905 RL202
PSM VCC
CW902
D906 RL202
D907 RL202
CM903 104P
D904-907
COMPANY: DAT HK LTD.
MODEL: NC-891XDU/DE
DRAWN:
DATE:2009.07.04
AMP2
HC809
HC807
HR816
10P
HR820
HR817
680(*)
HR818
680(*)
HR821
CM800
104P
HC808 HR819
10P
HC810
SPEAKER JACK PCB
CM801
104P
GND
8
8 8
R CH
7 7 7
GND
6 6 6
L CH
5 5 5
GND
4 4 4
R CH
3 3 3
GND
2 2 2
L CH
1 1 1
AMP1 CN800 CW800 J800
HC816
HC814
HR848
10P
HR852
HR849
560(*) CE815 22UF/50V
CE816 22UF/50V
HR850
560(*)
HR853
HC815 HR851
10P
HC817
CM818 CM819
104P 104P
*AMP1 OPTION TABLE
POWER OUTPUT TABLE(* MARK)
NC-8911 NC-8913 NC-8915
LOCATION S/T(15WX2) CE(15WX2) S/T(25WX2) CE(25WX2) S/T(38WX2) CE(38WX2)
IC801 CD7269ACZ CD7269ACZ TDA7292 TDA7292 TDA7292 TDA7292
HR817/HR818 X X 6 0 8 6 0 8 5 0 6 5 0 6
HR849/HR850 6 0 8 5 0 6 5 0 6 560 5 0 6 560
V 0 100UF/50V
C 8 E 4 1 C / 8 E 7 1 100UF/25V 100UF/25V 1 0 0 F U 5 / 100UF/50V 1 0 0 F U 5 / V 0
CE900/CE901 2200UF/25V 2200UF/25V 3300UF/35V 3300UF/35V 3300UF/35V 3300UF/35V
D900/D901 RL-202 RL-202 IN5402 IN5402 IN5402 IN5402
D902/D903 RL-202 RL-202 IN5402 IN5402 IN5402 IN5402
HIGH BOOST OPTION TABLE(* MARK)
NC-8911 NC-8913 NC-8915
S/T(15WX2) CE(15WX2)
LOCATION S/T(25WX2) CE(25WX2) S/T(38WX2) CE(38WX2)
HR848 330 OHM X X X X X
HR851 X X X X X
330 OHM
1 K X X X
HR852 X X
HR853 1 K X X X X X
X X
HC816 104 PF X X X
X X X
HC817 104 PF X X
TITLE:MAIN DIAGRAM
CHECKED ：
APPROVED:
SIDE:A3
REV:3.0
1
2
3
4
5
7
7
8
9