Daewoo NC-8913 User manual
Service Manual
MiniComponentSoundSystem
9CD8308100
July. 2009
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SAFETY PRECAUTIONS ......................................................................................... 1
TROUBLE SHOOTING GUIDE ................................................................................ 3
EXPLODED VIEW AND MECHANICAL PARTS LIST ............................................. 4
WIRING DIAGRAM ................................................................................................... 5
BLOCK DIAGRAM .................................................................................................... 6
SCHEMATIC DIAGRAM ........................................................................................... 7
FRONT Section
MP3/CD Section
MAIN Section
POWER Section
P.C.B PATTERN LAYOUT .........................................................................................8
FRONT Section
MP3/CD Section
MAIN Section
POWER Section
APPENDIX-ELECTRICAL PART LIST ................................................................... 9
TableofContents
Mini component sound system
NC-8911/NC-8913/NC-8915DU
NC-8911/NC-8913/NC-8915DE
ADJUSTMENTS ........................................................................................................ 2
SafetyPrecautions
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SafetyPrecautions
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Adjustments
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●TUNER Section
FM TEST EQUIPMENT
1.Adjust L003 to obtain 87MHz±0.5
2.Adjust PVC1(FM OSC)to obtain 108.5MHz±0.5
3.Adjust L002 to obtain maximal waveform for 90MHz
4.Adjust PVC2(FM ANT)to obtain maximal waveform for 106MHz
Item Input Circuit Setup Output Circuit Setup S.S.G setting Adjust point Adjustment
FM Frequency Connect output signal Connect V-Input signal 87MHz L003 Adjust for
Range Adjustment generator to FM ANT generator to CE002(-)/ Dev.26dB 87MHz±0.5
terminal of D001(-) CE003(-) pin 108.5MHz PVC1(FM OSC) Adjust for
5.0±zHM5.801Bd62.veDnip
FM RF Connect output signal Connect V-Input signal 90MHz L002 Adjust maximal
generator to FM ANT generator to CE002(-)/ Dev.26dB waveform for 90MHz
terminal of D001(-) CE003(-) pin 106MHz PVC2(FM ANT) Adjust maximal
zHM601rofmrofevawBd62.veDnip
Adjustments
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●TUNER Section
AM TEST EQUIPMENT
1.Adjust L009 to obtain 510KHz±10(America)/513KHz±9(Europe)
2.Adjust PVC3(AM OSC)to obtain 1730KHz±20(America)/1638KHz±18(Europe).
3.Adjust L011 to obtain maximal waveform for 600KHz
4.Adjust PVC4(AM ANT)to obtain maximal waveform for 1400KHz
Item Input Circuit Setup Output Circuit Setup S.S.G setting Adjust point Adjustment
AM Frequency Connect output signal Connect V-Input signal 510KHz(America) L009 Adjust for
Range Adjustment generator to test loop generator to CE002(-)/ 513KHz(Europe) 510KHz±10(America)
)eporuE(9±zHK315Bd06.veDnip)-(300EC
1730KHz(America) PVC3(AM OSC) Adjust for
1638KHz(Europe) 1730KHz±20(America)
)eporuE(81±zHK8361Bd06.veD
AM RF Connect output signal Connect V-Input signal 600KHz L011 Adjust maximal
zHK006rofmrofevawBd06.veD/)-(200ECotrotarenegpooltsetotrotareneg
CE003(-) pin 1400KHz PVC4(AM ANT) Adjust maximal
zHK0041rofmrofevawBd06.veD
AM Antenna
AM
Antenna
Terminal
SET
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TroubleShootingGuide
MP3/CD Section
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CD open and disc insert Refer to 2
Spindle motor rotation
Pick-up unit return(outside >>
inside)
Laser diode on
Focusing operation
Read in CD/MP3 disc operation
Reading and auto play
CD play on
Refer to 3
Refer to 4
Refer to 5
Refer to 6
Auto to play
CD close and CD on
Refer to 1
AC cord in
Power ON/OFF ON
Reading in USB file and USB
Encoding operation Refer to 7
TroubleShootingGuide
9
MP3/CD Section
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1. Pick-up unit return
2. CD o
p
en and disc insert
3. Laser diode on
STOP PLAY
C 0V 1.8V
B 3.3V 2.1V
(HQ500) E 3.3V 2.8V
CD open and disc
insert
AC cord in
Function to CD
and Initializing no
1. Check CN704
2. Check IC701 of 38pin and 39pin and 40pin
41pin and 44pin.
3. Check CN502,CW504.CN505
4. Check IC504 of 3pin:5.0V
5. Check Q501 collector:+3.3V
6. Check +3.3V (IC500 pin8/18/23/25/38/57/85/113/116/122)
7. Check (IC502 SA5888 of 17pin and 18pin)SP+ 4.41V ,
SP- 3.41V
8. Check SPDO +1.90V (IC500 M5673 or M5675 pin123)
9. Check (IC502 SA5888 of 12pin and 11pin) SL- 3.81V,
SL+ 3.91V
10. Check CD Board(Around IC solder short,cold soldering )
CD open and disc insert
Yes
Yes
CD close and cd on
Laser diode on
Yes
Focusing operation
no 1. Check +1.8V LD on(HQ500 collector)
2. Check +2.1V (HQ500 base pin) >>>in case of play
B
E
C
no
Yes
Yes
Power ON/OFF ON no
1.Check F980，F981
2.Check PT903
3.Check RF982，RF983
4.Check CN902,CN701
5.Check IC900 of 3pin:9V ,
IC704 of 2pin:3.3V
6.IC701 of 22pin:3.3V
1. Check CN505 of 5pin.
2. Check IC502 SA5888 of 10pin
no
1. Check CN505 of 3pin.
2. Check IC502 SA5888 of 9pin
TroubleShootingGuide
MP3/CD Section
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4. Focusing operation
5. Spindle motor rotation
6. Read in CD/MP3 disc operation
7. Read in USB file and USB Encoding operation
Focusing
operation
Yes
no
1. Check (IC502 SA5888 of 13pin and 14pin)
13pin 3.95V >>3.99V, pin18 3.72V >> 3.75V >>>
in case of play.
2. Check +1.58V(IC500 M5673 or M5675 of 126pin).
Spindle motor
rotation
Yes
no 1. Check SPDO +1.90V(IC500 M5673 or M5675 of 123Pin)
in case of play。
2. Check (IC502 SA5888 of 12pin and 11pin) SL- 3.81V,
SL+ 3.91V.
3. Check (IC502 SA5888 of 17pin and 18pin)SP+ 4.41V ,
SP- 3.41V
Read in CD/MP3
disc
Yes
no
Yes
1. Check CN704
2. Check IC701 of 38pin and 39pin and 40pin
41pin and 44pin.
3. Check CN502,CW504.CN505
4. Check IC504 of 3pin:5.0V
5. Check Q501 collector:+3.3V
6. Check +3.3V (IC500 pin8/18/23/25/38/57/85/113/116/122)
7. Check (IC502 SA5888 of 17pin and 18pin)SP+ 4.41V ,
SP- 3.41V
8. Check SPDO +1.90V (IC500 M5673 or M5675 pin123)
9. Check (IC502 SA5888 of 12pin and 11pin) SL- 3.81V,
SL+ 3.91V
10. Check CD Board(Around IC solder short,cold soldering )
Yes
Read in USB file
operation
1. Check IC500(M5673 or M5675) of 52pin and 53pin.
2. Check CW507,CN707.
3. Check J702.
no
USB Encoding no
1. Check IC500 (M5675) of 52pin and 53pin.
2. Check CN502 7pin 8pin and 9pin.
3. Check IC500(M5675) 40pin,43pin input signal.
4. Check IC500(M5675) 33pin,36pin output signal.
TroubleShootingGuide
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1
Front Section
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Change to tuner function
AC cord in
Yes
no
Power ON/OFF ON
Yes
Yes
no
ST. LED on 1.Check IC101(TA2111N) of 11pin.
2.Check IC701(CA6808F) of 43pin
no
1.Check F980，F981
2.Check PT903
3.Check RF982，RF983
4.Check CN902,CN701
5.Check IC900 of 3pin:9V ,
IC704 of 2pin:3.3V
6.IC701 of 22pin:3.3V
LCD Display and back
light
1.Check LC701
2.Check IC701
3.Check LD701 and LD702
4.Check X701(32.768KHZ)
Yes
Tuner LCD Display no
1.Check IC102 of 2pin Voltage:3.3V
2.Check IC700(CS9255)
3.Check Q002(S9018) and
Q003(S9018).
4.Check IC701 (CA6808F) of 40pin and
41pin.
5.Check X702(32.768KHZ)
Yes
Yes
Function command no
Yes
1.Check IC701 of 7pin /8pin /9pin/10pin
2.Check SW701/SW702/SW703/SW704/
SW705/SW706/SW707/SW708/SW709/
SW710/SW711/SW712.
.
TroubleShootingGuide
Front Section
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AM/FM Speaker sound no
1.Check AM ANT and CN001
2.FM ANT: CN101.
3.Check IC101 VCC 6pin: 4.7V.
4.Check PC101
5.Check L008 and L009.
6.Check output signal pin of IC101 of 13pin
and 14pin.
Change to CD function
no
1.Check CN704
2.Check IC701 of 38pin and 39pin and 40pin
41pin and 44pin.
Yes
Yes
Phones sound
no
1.Check J701
2.Check IC702(IL4560D)
3.Check CN700
TroubleShootingGuide
POWER& Section
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AC cord in
no
Tuner/AUX/CD/USB Speaker
sound no
Phones sound no
Power ON/OFF ON
Yes
1.Check F980，F981
2.Check PT903
3.Check RF982，RF983
4.Check CN902,CN701
5.Check IC900 of 3pin:9V ,
IC704 of 2pin:3.3V
6.IC701 of 22pin:3.3V
no
LCD Display and back
light
1.Check LC701
2.Check IC701
3.Check LD701 and LD702
1.Check J701
2.Check IC702(IL4560D)
3.Check CN700
Yes
Yes
1.Check IC800(TDA7292):Voltage of 3pin,
6pin and 1pin :more than DC(29.5,-29.5V).
2.Check IC801(TDA7292)/(CD7269ACZ):
Voltage of 3pin, 6pin and 1pin :more than DC
(29.5,-29.5V)/(18,-18V).
3.Check IC400(SC7314S):
Voltage of 1pin: normal DC(8.5V).
4.Check IC401/IC402(NJM4558M)
5.Check TUNER/AUX/CD input signal
6.Check output signal pin of IC800/IC801(
p
in2,pin4).
7.Check CN800.
8.Check output signal terminals(J800).
Yes
ExplodedViewandMechanicalParts List
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ExplodedViewandMechanicalParts List
No. PARTS NAME CODE NO. DESCRIPTIONS Q'TY REMARKS
1 KNOB VR 9CD1369300 HIPS 1
2 DECO CAP 9CD1018400 HIPS 1
3 DECO TUNING 9CD1018500 ABS 1
4 DECO RING 9CD1018600 ABS 1
5 STOPPER 9CD5700700 HIPS 1
6 CUSHION FOOT 9CD4207700 URETHANE D10*4.0T 2
7 WINDOW LCD 9CD1628300 PMMA (SMOG) 1
8 DOOR CD 9CD1819200 HIPS 1
9 PANEL FRONT 9CD0321600 HIPS 1
10 COVER SIDE L 9CD0425400 HIPS 1
11 COVER SIDE R 9CD0425500 HIPS 1
12 GUIDE LCD 9CD2509100 HIPS 1
13 WIDDOW REFLECTOR 9CD1621600 PMMA (CLEAR) 1
RL-412 共用
14 SHEET DIFFUSION 9CD9603100 PE 1
RL-412 共用
15 KNOB POWER 9CD1369500 HIPS 1
16 KNOB OPEN 9CD1369400 HIPS 1
17 PIN GEAR 9CD3501700 PW 1
18 NUT 7391500011 M5X0.8 1
19 GEAR IDLE 9CD2702700 HIPS 1
20 GEAR PVC 9CD2702600 HIPS 1
21 KNOB FUNCTION L 9CD13696L0 HIPS 1
22 KNOB FUNCTION R 9CD13696R0 HIPS 1
23-1 PCB MAIN AS FCDC004810 NC-8915 1
23-2 PCB MAIN AS FCDC004800 NC-8913 1
23-3 PCB MAIN AS FCDC004790 NC-8911 1
24 BRACKET PCB L 9CD2421700 SECC 1.0T 1
25 BRACKET PCB R 9CD2421800 SECC 1.0T 1
26 BRACKET HEAT TR 9CD2413901 STS 0.4T 2 NC-8911 1pcs
27-1 PCB FUSE AS FCDC005006 NC-8915 1
27-2 PCB FUSE AS FCDC005003 NC-8913 1
27-3 PCB FUSE AS FCDC005000 NC-8911 1
No. PARTS NAME CODE NO. DESCRIPTIONS Q'TY REMARKS
28 PCB FRONT AS FCDC005100 NC-8911/8913/8915 1
29 PCB MP3 CD AS FCDC004900 NC-8911/8913/8915 1
30 BRACKET CD DECK 9CD2421600 HIPS 1
31 CD- PICK UP 9CD6014830 R800 1 PLATE TYPE
32 CD DECK 9CD6016800 8210D 1 ASA
33 COVER TOP 9CD0425200 HIPS 1
34 HOLDER SCREW A 9CD2307500 POM 4
35 HOLDER SCREW B 9CD2307600 POM 4
36-1 HEAT SINK 75 9CD4415300 AL 1 NC-8915 (75W)
36-2 HEAT SINK 50 9CD4415200 AL 1 NC-8913 (50W)
36-3 HEAT SINK 15 9CD4415000 AL 1 NC-8911 (15W)
37 PLATE MICA 9CD0910600 WHITE MICA 25X30mm 2 NC-8911 1pcs
38 SW VOLTAGE SELE 5S30102377-1 ZH-06-01 1 ONLY FOR TOSHIBA
39 PCB USB&AUX AS FCDC005104 NC-8911/8913/8915 1
40-1 PCB SPEAKER JACK AS FCDC005103 NC-8913/8915 1
40-2 PCB SPEAKER JACK AS FCDC005102 NC-8911 1
41-1 COVER BACK 9CD0425300 HIPS 1 NC-8913/8915
41-2 COVER BACK 9CD0425310 HIPS 1 NC-8911
42 AC CORD F736909021 2X0.75mm2 L=1.85M 1
43 CHASSIS BOTTOM 9CD0616900 HIPS 1
44 PLATE SENSOR 9CD0916800 PC T=0.5 1
S1 SCREW TAPPTITE 7173301011 TT2 BIN 3X10 MFZN 12
TOSHIBA 向14pcs
S2 SCREW TAPPTITE 7173301211 TT2 BIN 3X12 BK 23
S3 SCREW TAPPTITE 7173261011 TT2 BIN 2.6X10 MFZN 12
S4 SCREW TAPPTITE 7173401011 TT2 BIN 4.0X10 MFZN 4
S5 SCREW WASHER 9CD3102400 TT2 WAS 3X10+D14 MFZN 3
S6 SCREW TAPPTITE 7173300611 TT2 BIN 3X6 MFZN 9 NC-8911 8pcs
S7 SCREW MACHINE 7003263511 M2.6X3.5 1
S8 SCREW TAPPTITE 7173302111 TT2 BIN 3X21 MFZN 4
WiringDiagram
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Title
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2
3
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9
BlockDiagram
Title
1
2
3
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7
8
1
2
3
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99
SchematicDiagram
FRONT Section
IC701
C
D
CF3
CF1
CF2
CF4
TO MAN PCB
H/P JACK
AGND
COMPANY: DATHK LTD.
NEW MODEL TITLE:
DRAWN: CHECKED: APPROVED:
DATE:2009.07.04
SIDE:A3
REV:3.0
NC-891XDU/DE FRONT SCHEMATIC DIAGRAM
TO MAN PCB TO CD/MP3 PCB
MCU
PA4
PA5
PA6
PA7
FRONT SCH
AM ANT
W PSM
W/O PSM
HR780 HR781 HR782 LD703 HQ717/710
3K9 390 RED C107S
X
X
X
X
10K
WITH PSM OPTION
TO CD MP3 PCB
USB JACK PCB
CD-DECT
+9V(UN-SW)
TU-L
TU-R
AM ANT PCB
X
HR762
HR763
NC-8911
3.9K
3.9K
NC-8913/8915
6.2K
6.2K
PSM-OUT
JW763
JW761
PSM-VCC
+9V(UNSW)
HR789
10K
X
HR790
1K
X
CE713
47/10
X
PSM OPTION
1
2
3
IC703
DT1838
SW712
EQ/UBS
SW706
FOLDER+10
SW703
NEXT
SW709
SOURCE
SW702
STOP/CLEAR
SW711
TIMER
SW701
PLAY/PAUSE
SW708
MO/ST
SW705
POWER
SW704
BACK
SW707
OPEN/CLOSE
20 S12
19 S11
18 S10
17 S9
16 S8
15 S7
14 S6
13 S5
12 S4
11 S3
10 S2
9S1
8C1
7C2
6C3
5C4
4C5
3C6
2C7
1C8
28
C6
27 C3
26 C2
25 S17
24 S16
23 S15
22 S14
21 S13
LC701
L002 3.5T/5.0MM
L003
2.5T/5.0MM
HR009
12K
HR010
12K
HR011
75K
HR012
75K
FM ANT
HR001
150K
HR005
3.3K
HR004 100K
L001 4.5T/5.0MM
HR002
330
1 2 3 4 5 6 7 8 9 10 11 12
13
1415161718
19
20
21
22
23
24
AM
MIX
FMRF FM
MIX
FM
OSC AM
OSC
AGC
AM
DET FM
DET
IF IF
FM
AM
FM
MUTE
LEVEL
DET
TUN
LED
ST
LED
ST/MO
FM/AM
VCD
DIVIDE
DECODE
AF
AM
BUFF
FM.RF.IN
RF.GND
AM.LOW/CUT
MIX.OUT
AGC
VCC
AM.IF
FM.IF
GND
ST.LED
TUN.LED
QUAD
L.OUT
R.OUT
LPF1
MPX.IN
MP.OUT
LP2
AFC
AM.OSC
FM.OSC
RF.VCC
FM.RF.OUT
AM.RF.IN
IC101
TA2111N
HC019
105PF
HC018
103PF
HC017 104PF
HC015 102PF
HC016
104PF
HC013
105PF
HC011
4PF
HC012 130PF
HC010
22PF
HC009
25PF
HC007
104PF
HC008
104PF
HC006
104PF
HC025
2PF
HC026
30PF
HC021
103PF
HC020
103PF
HC024
104PF
HC023
332PF
HC022
332PF
HC004
104PF
HC005
105PF
HC003 30PF
HC001
30PF
HC002
30PF
PC101-D-A
PC101-D-B
PC101-D-C
PC101-D-D
CF001
455KHZ
CF002
10.7MA5
CF003
10.7MG77
L008
L009
M1037B
D001 IN4148
D002 IN4148
CE004
220UF/6.3V
CE003
1UF/50V
Q003
S9018
HQ709
A111S
1
2
3
4
5
6
7
8
IC702
BA4560F
HR767
1.2K
HR768
1.2K
CE710 2.2UF/50V
CE711 2.2UF/50V
HQ707
C111S
HQ708
C111S
HR765
56K
HR763
3.9K HR761
18K
HR764
56K
HR760 18K
HR762
3.9K
CE707 33UF/25V
CE708 33UF/25V HR757
22
HR756
22
CE709
220UF/16V
CE706
47UF/16V
HR758
10
HR755
10
1
2
3
4
5
6
7
J701
HR751
10k
HQ703
C111S
HR753
2K2
HQ705
C111S
HQ706
C111S
D705
IN4148
D701 IN4148
D702
IN4148 D703
IN4148
D704
IN4148
Q702
S8050D
1
2 3
VR701
HR717 1K
HR719
1K
HR720
1K
HR750
1K
HR727
10K
HR728 470R HR726 10K
HR725 1K
HR730 10K
HR733 1K
HR739
1K
HR740 1K
HR742
10K
HR741
10K
HR721 1K
HR722 1K
HR723 1K
HR724 1K
HR715 1K
HR716 1K
HR713 1K
HR712 1K
HR709
10K
HR710
10K
HR708
220K
HR706
100K
HR705
1K
HR707 1K
HR021 1K
HR020
1K
HR701
10K
HR702
10K
HR704
10K
HR703
10K
HR748
1K
HR749
47K
HR743
10K
HR744
10K
HR745
10K
HR746
10K
HC713
105PF
HC710
30PF
HC709
30PF
HC711
30PF
HC708 100PF
HC705
3PF
HC704
3PF
HC701
104PF
HC703
103PF
HC702
103PF
HC706
15PF
HC707
15PF
CE702
47UF/10V
CE721
CE705
47UF/10V
HD708
KDS160
D707 IN4148
HD709
KDS160
HR718
1K
OSCO
OSCI
DATA
DCLK FM IN
GND
AM IN
VDD 1
2
3
45
6
7
8
IC700 CS9255
HC728
104PF
HC731 104PF
HC727 104PF
X702
32.768KHZ X701
32.768KHZ
HZ701
5.6V
HR711 1K
HZ702
3.3V
HC028
472PF
HC029
102PF
HR013 0
HR014
220K
HR017
56k
HR018
330
HR003
330
HR752
10k
HR019
1K
CE002
1UF/50V
HC723
330PF
HC724
330PF
HC722
150PF
HC721
150PF
HC719
104PF
HC720
104PF
HC717
103PF
HC718
103PF
HR747
0
SW710
FOLDER-10
D706
IN4148
HC726
NC
HC725
NC
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
PA7/SEG3
PA6/SEG2
PA5/SEG1
PA4/SEG0
PA3
PA2
PA1
PA0/NTX
PE3
PE2
OSCXO/PD1
OSCXI/PD0
VPP
RESET
OSC1
VDD
PSGOB
PSGO
GND
PWRT
COM7
COM6
COM5
COM4
COM3
COM2
COM1
COM0
SEG39/PB7
SEG38/PB6
SEG37/PB5
SEG36/PB4
SEG35/PB3
SEG34/PB2
SEG33/PB1
SEG32/PB0
SEG31/PC7
SEG30/PC6
SEG29/PC5
SEG28/PC4
SEG27/PC3
SEG26/PC2
PC1/SEG25
PC0/SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
CA6808F
LD701
HR734
HR008
470
HR007
22K
HR006
150R
HR769
1k
CE701
47UF/10V
HQ013 A111S
HQ014
A111S
Q005
D8550S
Q006
S8050D
D
S
G
Q004
2SK544E
HR022
10K
HR023
1K
HC031
223PF
L012
560UH
1
2
CN001
HR031
0 1/4W
HR030 0 1/4W
HC328
103PF
HC329
103PF
HR778
10K
LD702
HR766
CE005
100UF/6.3V
HC032
104PF
L011
IFT-7SB-4251-00-LF
INPUT
GND
OUTPUT
3
1
2
IC102
SA1117BH-3.3
HQ015
C111S
HQ016
C111S
1
2
3
4
5
6
7
8
9
CN700
HR788
8.2K
HR787
8.2K
DZ001
4.7V
HQ717
C107S
HR781 3.9K
HR782
390
HR780
10k
LD703
RED
1
VCC
2
D-
3
D-
4
GND
5GND1
6GND2
J702
USB-JACK
HL704 JUMPER
HL706 JUMPER
HL707 JUMPER
HL710 JUMPER
HL005
JUMPER
1
2
3
4
CN707
HC729
104PF
HC730
104PF
CE704
100UF/10V
1
2
3
4
5
6
7
8
9
10
CN704
HR026 1K
HR027 1K
HR028 3K3
HR0293K3
HR025
10K
HR024
10K
CE006
CE703
10UF/16V
HR770 6K2
HR783
CE712
DZ701
Q705
HR779
1
2
CW001
1
2
CW002
1
2
R701
100(1/4W)
R702
100(1/4W)
HC033
104PF
Q002
S9018
HR032
1.5K
Q001
HC027 HC030
HR015
HQ710
C107S
HR789
10k
HR790
1k
CE713
47UF/10V
OUTPUT
GND
INPUT
1
32
IC704
SA1117BH-3.3
1
3
2
4
L701
1 2
JW765
1 2
JW766
6 5 4 3 2 1
CN701
HC732
104PF
D708
IN4148
Q701
S8550
+3V3
H/P
H/P-MUTE
ADMUTE
+9V-SW
-9V-SW
H/P-MUTE
-9V-SW
H/P-IN/L
H/P-IN/R
H/P-IN/L
H/P-IN/R
VOL-UP VOL-DN
H/P-SEN
ADMUTE
ADMUTE
H/P-IN/L
H/P-IN/R
-9V-SW
P-CLK
P-DATD
+9V-SW
+9V-SW
SEG9
SEG8
PA7
PA6
PA5
PA4
PA3
VOL-B
VOL-A
PA0
SEG7
SEG7
SEG8
SEG9
COM7
COM6
COM5
COM4
COM3
COM2
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
COM0
COM1
+9V(UN-SW)
GND_POWER
M-POWER/ON
GND
F-SCL
F-SDA
USB-5V+
USB-D-
USB-D+
GND
GND
COM6
COM7
COM5
COM4
COM3
COM2
COM1
COM0
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
TU-R
TU-R
TU-L
TU-L
AGND
AGND
+9V(UN-SW)
ADMUTE
+9V-SW
P-CLK
P-DATD
PB3 PB3
PB0 PB0
PC7
PC7
PC5
PC5
H/P-SEN
P-CLK
P-DATD
AGND
+9V(UN-SW)
MUTE
MUTE
+3V3
+9V(UN-SW)
CD-IRC
CD-STB
CD-CLK
CD-DATA
CD-POWER
OP/CL-SW
OPEN-M+
CLOSE-M-
CD-MUTE
ADMUTE
TitleSchematicDiagram
MP3/CD Section
1
2
3
4
5
7
7
8
1
2
3
4
5
7
7
8
99
NC-891X CD SCH_MP 090630.sch-1 - Sat Jul 04 16:02:32 2009
SchematicDiagram
MAIN Section
1
2
3
4
5
7
7
8
1
2
3
4
5
7
7
8
99
TO FRONT PCB
L
R
TO CD PCB
D904-907
COMPANY: DAT HK LTD.
MODEL:
TITLE:MAIN DIAGRAM
DRAWN: CHECKED：APPROVED:
DATE:2009.07.04SIDE: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 PCB
CD-R
CD-L
AGND
GND
+9V(UN-SW)
1
2
3
4
5
CW402 TABLE
L
RR
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
065065065086
V05/FU001V
0
5/FU001718EC/418EC 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-8915LOCATION
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-8915LOCATION
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
XX
100K 100K
100K 100K
HR817/HR818 X 06
5
086X 065086
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
TREBLEBASS
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
MUXOUTR
INR
INPUT SELETOR & GAIN CONTROL
LOUD(R)
BIN(R)
BASSOUT(R)
TREBLE(R)
REF
AGND
VDD
ROUT
SDA
SCL
DGND
LOUT
TREBLE(L)
BIN(L)
BASSOUT(L)
LOUD(L)
INL
MUXOUTL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
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
OUTPUT1
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
AOUT
AIN-
AIN+
V-
BIN+
BIN-
BOUT
V+ 1
2
3
45
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
AOUT
AIN-
AIN+
V-
BIN+
BIN-
BOUT
V+ 1
2
3
45
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
HC804 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
+
CE814 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
HR854 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
HR951 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
SchematicDiagram
POWER Section
1
2
3
4
5
7
7
8
1
2
3
4
5
7
7
8
99
A3
SW901
ZH-06-01
NC-891XDU/DE POWER SCHEMATIC
This manual suits for next models
3
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