Alpine CDE-9841, CDE-9841-E Service manual
SERVICE MANUAL
TO ALPINE Home Page
FM/AM CD Receiver
(CDE-9841)
2 / 05-A
68E38344S01
CDE-9841/CDE-9841E
<Cautions for Safe Repair Work>
r
s
- 2 -
The following cautions will prevent accidents in the workplace and will ensure safe products.
*The symbols indicate caution is needed to prevent injuries and damage to property.
The symbols and their meanings follow.
Warning
Caution
*The following symbols indicate two levels of cautions.
When you see this symbol, you have to be very careful.
When you see this symbol, you have to follow the instructions there.
If you ignore this symbol and handle the product incorrectly or unsafely,
serious injury or death may result.
If you ignore this symbol and handle the product incorrectly or unsafely,
injury or only material damage may result.
Warning
Do not look squarely into the laser light
coming from the pickup. Always use a designated fuse.
You may loose you sight. Use of an incorrect fuse may result in a fire.
Caution
Do not allow wiring to be caught in the Battery Caution
screw/chassis. Use the designated battery.
If wiring is caught in the screw/chassis, it may Confirm the correct polarity and seat of the
cause a short circuit, resulting in a fire. battery.
Fuse Caution
An incorrect battery or an improperly connected
or seated battery may result in a fire.
High Temperature Caution Designated Parts Caution
Touching the heat sink may cause severe burns. Look up the part list and ensure that only
designated parts are used to prevent problems or
accidents.
Reverse Power Supply Connections o
Misconnections Caution Ensure that the wiring is correct when rewiring to
Reverse power supply connections or prevent problems with ignition/breakdown.
misconnections may cause ignition problems and
smoke may result.
Soldering Caution Wear Glove
Hot solder from solder splash may cause severe Wear gloves to prevent electrical shocks or injury
burns. from the end face of the metal.
Wiring Caution
Contents
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CDE-9841/CDE-9841E
Packing Assembly Parts List
Packing Method View
Specifications
5, 6
Extension Cable
Block Diagram
Parts Layout on P.W.Boards and Wiring Diagram
Schematic Diagram
Terminal Voltage of IC/TR
Description of IC Terminal
9 to 13
14 to 19
20 to 25
26 to 30
Exploded View (Cabinet)
Exploded View (CD Deck Mechanism) (DP23S87T)
4
4
7
8
31
32
NOTE : Due to continuing product improvement, specifications and designs are subject to
change without notice.
Packing Assembly Parts List
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TO CONTENTS
CDE-9841/CDE-9841E
Symbol SymbolDescription
Part No. Part No.
Description
No. No.
101 15-01970Z01 CASE,INNER
102 15D01798K03 CARRYING,CASE
103-1 03S60820Y16 SCR,MCH 5X8 ZN A
103-2 03S60824Y01 SCR,WEV 1.7X4 ZN A
104 07-01964Z01 BKT,RELEASE
NOTE: #2:For CDE-9841 Model Only, $2:For CDE-9841E(General Foreign) Model Only, %2:For CDE-9841E(Chinese) Model Only,
Others:Common.
105 09-02256Z01 ASSY,ANIC-0008-01A
#2
105 09-01538Z05 ASSY,POWER WIRE9841E
$2
105 09-01538Z05 ASSY,POWER WIRE9841E
%2
106 68-00493Z95 O/M AOAM AOTA
#2
106 68-02278Z05 O/M AAO AODN
$2
106 68-02770Z01 O/M,AOCH 9841
%2
Packing Method View
102
106
101
BO
TTOM
Side
105
103
104
103
104
105
X2
103
-2
X1
-1
X4
X1
CDE-9841/CDE-9841E
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TO CONTENTS
Specifications
< FM RADIO >
Intermediate Frequency ........................................................................................................................ 10.7±0.1MHz
Frequency Range .................................................................................................................... 87.7 to 107.9MHz (#1)
87.5 to 108.0MHz ($1)
Usable Sensitivity (3% Dist., Mono, at 98.1MHz) ........................................................................................... 20.2dBf
Quieting Sensitivity (50dB S/N, Mono, at 98.1MHz) ....................................................................................... 20.2dBf
-3dB Limiting Sensitivity (at 98.1MHz) ........................................................................................................... 20.2dBf
Residual Noise (Ref. 400Hz, at 98.1MHz) .................................................................................................... 30±10dB
S/N Ratio (at 98.1MHz) ......................................................................................................................... Stereo : 55dB
Mono : 60dB
Image Rejection (at 106.1MHz) .......................................................................................................................... 40dB
IF Rejection (at 90.1MHz) .................................................................................................................................. 60dB
Distortion (Input 60dBu, at 98.1MHz) ................................................................................................................. 1.5%
Frequency Response (Ref. 400Hz, at 98.1MHz) ................................................................................ 100Hz : 0±3dB
10kHz : -13±3dB
Stereo Separation (1kHz, at 98.1MHz) .............................................................................................................. 20dB
< AM RADIO >
Intermediate Frequency ....................................................................................................................... 1st : 10.8MHz
2nd : 450kHz
Frequency Range ...................................................................................................................... 530 to 1,710kHz (#1)
531 to 1,602kHz ($1)
Usable Sensitivity (20dB S/N, at 1,000kHz(#1), 999kHz($1)) ............................................................................ 35dB
S/N Ratio (at 1,000kHz(#1), 999kHz($1)) .......................................................................................................... 44dB
Image Rejection (at 1,400kHz(#1), 1,404kHz($1)) ................................................................................ 2nd IF : 40dB
IF Rejection (at 600kHz(#1), 603kHz($1)) ............................................................................................. 2nd IF : 60dB
Distortion (at 1,000kHz(#1), 999kHz($1)) ........................................................................................................... 1.5%
Frequency Response (Ref. 400Hz, at 1,000kHz(#1), 999kHz($1)) .................................................... 100Hz : -3±4dB
4kHz : -14±6dB
< CD SECTION >
System ....................................................................................................................... Optical (Compact Disc System)
Channel Balance (1kHz) ................................................................................................................. TCD-782 : 0±3dB
Distortion (1kHz) ................................................................................................................................ TCD-782 : 0.3%
Frequency Response (Ref. 1kHz, 0dB) ............................................................................... TCD-782 : 17Hz : 0±3dB
127Hz : 0±2dB
10.007kHz : 0±2dB
19.997kHz : -1±4dB
S/N Ratio ........................................................................................................................................... TCD-782 : 85dB
Separation (1kHz) ............................................................................................................................. TCD-782 : 55dB
De-Emphasis (Ref. 1kHz, 0dB) ........................................................................................ TCD-782 : 4kHz : -20±3dB
16kHz : -20±3dB
NOTE : #1 : For CDE-9841 Model Only, $1 : For CDE-9841E Model Only, Others : Common.
CDE-9841/CDE-9841E
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TO CONTENTS
< CD Deck Mechanism >
Test Disc ....................................................................................................................................................... TCD-782
RF Waveform Amplitude .......................................................................................................................... 1.0±0.5Vp-p
Quantity of Jitter ............................................................................................................................. Less than 30nsec
Measurement Angle Range ............................................................................................... Front and Rear : -15°~75°
Right and Left : ±45°
Laser Current ................................................................................................................................. Initial value ±5mA
(The initial value of laser current is indicated on the Flexible Cable.)
< Pickup >
Wave Length .................................................................................................................................................... 795nm
Laser Power .................................................................................................................................................. CLASS I
< GENERAL >
Power Supply ............................................................................................................................................... DC14.4V
Power Output (FM 98.1MHz, Mod.1kHz, T.H.D.1%) / Impedance ........................................... 16W / ch / 4 ohm (#1)
(TCD-782 (1kHz, 0dB), T.H.D. 10%) / Impedance ............................................ 16W / ch / 4 ohm ($1)
Pre Output (TCD-782 (1kHz, 0dB), T.H.D. 1%) / Impedance ............................................ 6 +3/-2dBV / ch / 10k ohm
Back Up Current .................................................................................................................................................. 5mA
Dimensions (W x H x D) ................................................................................................ Chassis : 178 x 50 x 162mm
Nose : 188 x 58 x 18mm
Weight ................................................................................................................................................................ 1.6kg
NOTE : #1 : For CDE-9841 Model Only, $1 : For CDE-9841E Model Only, Others : Common.
: Due to Continuing product improvement, specifications and designs are subject to change without notice.
Extension Cable
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TO CONTENTS
*Always connect the Extension Cable when making checks of voltage and repair.
CD Deck Mechanism
DP23S87T
MAIN P.W.Board
1
0
1
B
C
CDE-9841/CDE-9841E
CB801
CB501
(1)
(2)
CH401
FRONT P.W.Board
(1) 01E29616S01
(2) 01V37775S01
Block Diagram
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TO CONTENTS
Tuner unit
E2P
ROM
Tuner on
N.C. MPX
RF IF
AM
PLL
TUNER+B
(CD MECH)
DP23S87T
Selector
CD
Vol.1
Main CPU
Tre/Bass
A-Mute
E-VOL
RESET
BAT DET SW
Vol.2
MUTE
DRIVER
Delay Circuit
Power cont
SYSTEM POWER IC
Batt-Det / VDD
PWR-ON / CD SERVO
TUNER ON
CDE-9841/CDE-9841E
MUTE
Front
Power IC
Rear
BATT
Pre-OUT
SubWoofer/Front
LCD DRIVER
LCD
DISPLAY
VDD+5V
VDD
Key Input
A/D
LCD+B
Nose DET
Remote
Control
Nose
Light
Nose PWR SW
CDE-9841E
Model Only
LCD
Light
ACC DET
CD-SERVO
PWR ON
PWR ANT
Rem SW
AUDIO +B
LED +B
ACC
POWER CONNECTOR
P.ANT
O.REM
Parts Layout on P.W.Boards and Wiring Diagram(1/5)
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TO CONTENTS
MAIN P.W.Board
1
(Component Side View)
JK581
CDE-9841/CDE-9841E
2
4
5
3
ANT001
2
ASSY,ANT CABLE 9805A
BLK
(ANT)
SHIELD
WHT
ANT001
C835
Q809
B
E
R809
C827
R810
L001
SA001
TU001
1
19
C054
R028
E051
C051
L003
C055
C057
ZD801
34
1
CB302
46
R345
R344
E319
L002
E001
E002
R057
R056
IC052
R063
C059
EB
Q813
SW501
Q304
R319
E027
R055
13
R322
C052
R059
R352
R353
E321
E052
IC801
R596
R595
XL051
1
C801
Q810
R580
R579
C824
E826
C011
R561
C802
3512
E244
Q814
12
R578
RA503
R562
R563
R560
35
E502
R542
E246
E238
E245
Q825
R854
53
B
E
R800
C241
C242
21
Q803
R532
E802
E239
R803
R529
XL502
8
142
E247
R802
15
R536
IC501
D302
D301
D303
E322
E311
R556
R567
IC307
D304
R232
IC203
XL501
R624
24
C310
R357
E323
RA502
R623
D309
C237
R522
E325
Q605
E602
C309
C248
B
E
E
B
2
125
D307
D308
D305
D306
C313
C312
C311
E326
E233
C239
E801
R608
Q606
R634
R633
915
E328
C247
1
E234
CB501
E324
E327
D102
C101
1
CB10
From DP-S MAIN P.W.Board (CB801)
18
To CB501
15 9
From FRONT P.W.Board (CH401)
E815
C809
C109
1
E10
To CB101
R816
D806
R812
8
16
C817
C816
B E
221
D808
D802
C812
R801
Q827
TH501
C813
C836
1
CB802
9
D807
R544
R545
R547
R546
A
Orange Color Pattern:Component Side Pattern
Blue Color Pattern:Foil Side Pattern
FGEDCB
Parts Layout on P.W.Boards and Wiring Diagram(2/5)
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TO CONTENTS
CDE-9841/CDE-9841E
1
2
4
3
Q582
R584
R582
R589
C583
C582
MAIN P.W.Board (Foil Side View)
C811
C814
R602
C601
D601
R604
Q601
R847
R850
R849
R853
R852
R851
B
E
Q828
NOTE : #1 : For CDE-9841 Model Only,
$1 : For CDE-9841E Model Only,
Others : Common.
3
IC101
C308
1
23
Q101
5
R101
C102
1
C103
D101
R804
R855
R065
E
R064
Q815
C560
C318
D001
R002
R043
C001
C010
C012
C061
C062
R819
R828
R813
B
R807
R814
R571
C053
R808
R034
C040
R033
C039
R036
R031
R032
C058
R829
C825
C826
C806
C307
Q307
R355
E
R362
C253
B
Q201
R558
R612
$1
E
TP506
TP504
R613
TP508
TP507
TP503
R614
#1
C505
R615
C506
R518
C504
C503
C507
R616
C240
C243
C255
C256
R552
R551
TP509
TP502
R617
$1
R566
TP501
R618
R231
TP505
R534
$1
$1
R605
R635
R607
R609
C805
C804
B
B
TP510
R619
C810
1
Q306
5
E
Q305
R550
C803
32
R361
Z502
R570
R569
D803
C508
D801
C561
1
IC560
5
23
5
A
Orange Color Pattern:Component Side Pattern
Blue Color Pattern:Foil Side Pattern
FGEDCB
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