KENWOOD KDV-C840 Service Manual

Cover page of KENWOOD KDV-C840 Service Manual

Service Manual for KENWOOD KDV-C840, downloadable as a PDF file.

We also have owner's manual to this model.

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© 2002-4 PRINTED IN JAPAN
B51-7953-00 (N) 3394
10 DISC DVD / CD CHANGER
KDV-C810/C820/
C830/C840/C860
SERVICE MANUAL
MAGAZINE PACK ASSY
(J19-5211-08)
REMOTE CONTROL ASSY
RC-DV300
(A70-2038-08)
CORD WITH PLUG
(E30-6124-05)
DC CORD
(E30-6148-08)
VIDEO CORD
(E30-6149-08)
BRACKET
(J19-5209-08)
BRACKET
(J19-5210-08)
SCREW SET
(N99-1732-08)
REMOTE CONTROL
SENSOR ASSY
(T95-0235-05)
MOUNTING PARTS SET
(W06-0745-08)
PROTECTION SHEET
(H21-1146-08)
PANEL ASSY
A64-2965-08 : K type, A64-2966-08 : E type
A64-2967-08 : M type, A64-2968-08 : X type
A64-2969-08 : C type
Illustration is KDV-C810
About the handling after repair (for transportation)
Please after repair for the units you must be internalized elevator mechanism of most below position (for magazine pack eject position)
and always attach CAUTION CARD and STEPPED SCREW (for transportation). In order to make an elevator mechanism downed.
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© 2002-4 PRINTED IN JAPAN
B51-7953-00 (N) 3394
10 DISC DVD / CD CHANGER
KDV-C810/C820/
C830/C840/C860
SERVICE MANUAL
MAGAZINE PACK ASSY
(J19-5211-08)
REMOTE CONTROL ASSY
RC-DV300
(A70-2038-08)
CORD WITH PLUG
(E30-6124-05)
DC CORD
(E30-6148-08)
VIDEO CORD
(E30-6149-08)
BRACKET
(J19-5209-08)
BRACKET
(J19-5210-08)
SCREW SET
(N99-1732-08)
REMOTE CONTROL
SENSOR ASSY
(T95-0235-05)
MOUNTING PARTS SET
(W06-0745-08)
PROTECTION SHEET
(H21-1146-08)
PANEL ASSY
A64-2965-08 : K type, A64-2966-08 : E type
A64-2967-08 : M type, A64-2968-08 : X type
A64-2969-08 : C type
Illustration is KDV-C810
About the handling after repair (for transportation)
Please after repair for the units you must be internalized elevator mechanism of most below position (for magazine pack eject position)
and always attach CAUTION CARD and STEPPED SCREW (for transportation). In order to make an elevator mechanism downed.
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2
BLOCK
DIA
GRAM
50MHz
X250
16MHz
X151
8.38MHz
X301
ACC
ACC DET
VCC5
VCC
VCC1
VBB
V5
BU
5V
11.5V
VIDEO DECODER
DOLBY AC3/
VCD,SVCD,
MPEG AUDIO/
AUDIO CD,
MP3 DECODER
DTS AUDIO DECODING
X551 27MHz
BU2 to MAIN UNIT
ACC to MAIN UNIT
VCC 2.8
D +5V
VCC5 to MAIN UNIT
VCC 5.0
VCC 3.3
VCC 3.3D
VCC 3.6
CONTROL
ACC 5V
ACC
BU
L052
L053
ACC 5V
V +5V
A +9V
BU1
BU to MAIN UNIT
L914
5L BUS
22.75MHz
X201
ATAPI I/F
TR COIL
FO COIL
EF
D
A
B
PD
C
M
M
M
IC1
SPINDLE
MOTOR
DRIVER
M
RF AMP/SERVO
CONTROL
IC101
Q102,103
LD DRIVER
IC102
FOCUS, FEED
TRACKING
DRIVER
IC202
1M DRAM
PROCESSOR
& DATA
CD/DVD SERVO
IC201
DECODER
DVD ROM
ATAP I/F &
IC250
IC251
4M DRAM
IC105
PULSE COUNT
FEED GEAR
IC152,153
RESET IC
IC305
DRIVER
LOADING
CONTROLLER
SERVO
PROCESSOR
IC151
IC301
CONTROLLER
PROCESSOR
MECHANISM
IC306
RESET IC
DRIVER
ELEVATOR
IC304
MOTOR
MOTOR
MICRO-
MICRO-
Q304
IC307
5V
Q301
5V
IC303
(SW301)
EJECT SW
DVD
PROCESSOR
IC501
IC514
IC511
DRAM
MEMORY
FLASH
EEPROM
IC591
VIDEO
IC571
VIDEO
182
IC561
AUDIO D/A
CONVERTER
IC101,111
LINE AMP
IC581
BUFFER
IC551
OPTICAL
PARKING
VIDEO
AUDIO
(SW901)
SETTING SW
PAL/NTSC
ENCODER
DRIVER
IC181,
2.8V
IC081
5V
Q004
Q003
5V
Q002
3.3V
ACC
Q072
BACK UP
IC071
5V
5V
IC062
IC061
9V
IN
OUTPUT
OUT L/R
OUT F/R
CONTROL
HEAD
to
UNIT
DIN13P
REMOTE
FEED MOTOR
(VM2)
SPINDLE MOTOR
(VM1)
INSIDE SW
(SW4)
FEED SENSOR
(PHT2)
LOADING MOTOR
(VM3)
CLAMP
SW
(SW302)
LOAD OUT
SW
(SW1)
IN SW
(SW5)
MAGAZINE DISC
SENSOR
(D1)
(SW2)
UP SW
(SW3)
DOWN
(VM4)
ELEVATOR
MOTOR
SENSOR
POSITION
(PHT1)
SW
(VPU1)
PICKUP ASSY
MAIN UNIT
MPEG UNIT
MECHANISM ASSY
KD
V
-C810/C820/C830
/C840/C860
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3
KDV-C810/C820/C830
/C840/C860
COMPONENTS DESCRIPTION
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
SW1
S68-0858-08
LOAD OUT SW
Disc tray return (magazine pack side) detect switch
SW2
S68-0858-08
UP SW
Elevator unit topmost part (disc 1) detect switch
SW3
S68-0858-08
DOWN SW
Elevator unit lowermost par t (magazine eject position) detect switch
SW4
S68-0878-08
INSIDE SW
Pickup unit inside position detect switch
SW5
S68-0858-08
MAGAZINE IN SW
Magazine pack in detection switch
SW302
S74-0820-08
CLAMP SW
Disc clamp operation end switch
VM1
-
SPINDLE MOTOR
Disc rotation drive motor
VM2
T42-1079-08
FEED MOTOR
Pickup unit drive motor ( Feed motor)
VM3
T42-1080-08
LOADING MOTOR
Disc tray loading / unloading drive motor
VM4
T42-1078-08
ELEVATOR MOTOR
Elevator mechanism part drive motor
VPU1
T25-0227-08
LASER PICKUP
2 Laser pickup unit
PHT1
T95-0256-08
POSITION SENSOR
Magazine tray position detect photointerruptor
PHT2
-
FEED SENSOR
Feed motor rotation detect photointerruptor
LED1
AN1102W-3
LED
LED for disc detection
IC1
BA6849FP-Y
SPINDLE MOTOR DRIVER
Spindle motor driver
MAIN UNIT
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC101
TA1293F
RF AMP/SERVO CONTROL
RF amplifier / Servo control IC
IC102
BA5918FP-Y
FOCUS/TRACKING/FEED DRIVER
Focus/ Tracking coil, Feed motor driver
IC105
TC75S51F
PULSE COUNT
Feed motor rotation detection comparator
IC151
HD64F3039TEBL1
MICROPROCESSOR (SERVO CONTROLLER) Servo IC control microprocessor
IC103
RN5RG33AA
+3.3V AVR
3.3V regulator IC
IC104
MMDF2P01HD
+5.0V AVR
5.0V regulator IC
IC152
TC7ST08FU
BUFFER
Reset signal buffer IC
IC153
IC-PST597EN
RESET REGULATOR
Reset signal regulator IC
IC154
TC7WU04FU
BUFFER
ATAPI interface buffer IC
IC108
LM50CIM3
TEMP DETECTOR
Temperature detection thermistor
IC201
TC9453AF
CD/DVD SERVO & DATA PROCESSOR
Digital-servo control IC
IC202
LH61665AS-60E2
DATA BUFFER DRAM
Data buffer DRAM
IC250
TC9469BF
ATAPI I/F & DVD ROM DECODER
ATAPI interface & DVD decoder
IC251
MSM514265C50TS DATA BUFFER DRAM
Data buffer DRAM
IC301
UPD78F0034AGK9 MICROPROCESSOR (MECHANISM CONTROL) Mechanism control microprocessor
IC302
S-24C04BFJ
EEPROM
Disc information data memory
IC303
L78M05TL
+5.0V AVR
5.0V regulator IC
IC304
BA6289F
ELEVATOR MOTOR DRIVER
Elevator motor driver
IC305
BA6289F
LOADING MOTOR DRIVER
Loading motor driver
IC306
S-80732AN-DW
RESET IC
Reset IC
IC307
S81250HG-RD
+5.0V AVR
5V power supply regulator IC for Microprocessor
IC308
S-80732AN-DW
BATTERY DETECTOR
Battery voltage detection IC
Q101
2SB1424-R
CURRENT DRIVE
3.3V current drive transistor
Q102
2SA1338-5
DVD LD DRIVE
Laser diode power supply for DVD
Q103
2SA1338-5
CD LD DRIVE
Laser diode power supply for CD
Q151
DTA114YUA
SW
Flash rewriting permission changeover switch
Q152
2SA1338-5
DVD LD DRIVE
DVD laser high frequency superposition circuit on-switch
MECHANISM (SWITCH / SENSOR / MOTOR)
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4
KDV-C810/C820/C830
/C840/C860
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
Q301
2SB1424-R
AVR FOR MECHANISM
Mechanism power supply
Q302
DTC114YK
POWER CONTROL SW
Mechanism power supply control switch
Q303
DTA114YK
ACC DETECTOR CONTROL SW
ACC detection transistor (At the time of ACC detection : H)
Q304
2SC2412K-R
ACC DETECTOR
ACC detection transistor (At the time of ACC detection : ON)
Q305
DTC124EK
RESET SW FOR MECHANISM
Mechanism control microcomputer (IC301) reset switch
Q307
2SC2412K-R
BATTERY DETECTOR
Battery detection IC (It turns on at the time of 13 pin connection)
SW301
S70-0900-08
EJECT SW
Magazine eject switch
MPEG UNIT
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC001
LTC1628CG
D/D CONVERTER
3.3V / 5.0 V D/D converter
IC061
PQ09DZ1U
+9.0V AVR
9.0V regulator IC
IC062
S81250HG-RD
+5.0V AVR
5.0V regulator IC
IC071
S81250HG-RD
+5.0V AVR
5.0V regulator IC
IC081
LM1117IMPX-ADJ
+2.8V AVR
2.8V regulator IC
IC101
NJM4565M-B
AUDIO SIGNAL BPF
Audio signal BPF filter
IC111
NJM4565M-B
AUDIO SIGNAL BPF
Audio signal BPF filter
IC171
NC7S04P5
INVERTER (MUTING)
Muting signal inverter
IC181
TK15405AM
VIDEO SIGNAL DRIVER
Video signal amp
IC182
TK15405AM
VIDEO SIGNAL DRIVER
Video signal amp
IC501
ES4428S
DVD PROCESSOR
MPEG 2 video, audio processing DSP
IC511
HY57V641620HGT DRAM
MPEG 2 data memory
IC514
MX29F800TTC-90
FLASH MEMORY
System program memory
IC515
TC7S32FU
OR GATE
Signal selector IC
IC516
SN74AHC174PW-R SELECTOR
Input selector IC
IC551
TC7WU04FU
27MHz OSC
Crystal oscillator buffer (27MHz)
IC561
PCM1716E
AUDIO SIGNAL D/A CONVERTER
Audio signal D/A converter
IC571
AK8812
VIDEO ENCODER
Video signal D/A converter
IC581
NC7ST08P5
DIGITAL OUT BUFFER
Digital out signal buffer
IC591
HN58X2408FPIZ
BACKUP MEMORY
Backup memory
Q001
2SA1622-6
SW
3.3V and 5.0V power supply Control
Q002
FDS8936A
+3.3V DRIVER
3.3V power supply drive
Q003
FDS8936A
+5.0V DRIVER
5.0V power supply drive
Q004
DTA113ZUA
+5.0V CONTROL SW
5.0V power supply control
Q051
DTC144EUA
CHANGER CONTROL SW
Changer control switch
Q052
DTA113ZUA
MUTING CONTROL SW
Muting signal ON/OFF
Q071
DTA114YUA
SW
Backup (BU) power supply ON/OFF
Q072
DTC144EUA/UMC2N SW
Control of Q71
DTC323TU
MUTING
Audio signal muting transistor.
Q171
DTA113ZUA
MUTING CONTROL SW
Muting transistor control (for Q111,161)
Q172
DTA113ZUA
MUTING CONTROL SW
Muting transistor control ( for Q101,151)
Q181
DTC144EUA
PARKING SIGNAL DETECTOR
Parking brake signal control (Parking H)
Q182
2SB709A (R)
VIDEO SIGNAL BUFFER
Video signal buffer
SW901
S62-0868-08
PAL/NTSC SETTING SW
PAL/NTSC change-over switch (PAL : L / NTSC : H)
CT551
C05-0520-08
27MHz REF ADJ
Reference 27MHz adjustment trimmer
Q101,111,
151,161
COMPONENTS DESCRIPTION
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5
KDV-C810/C820/C830
/C840/C860
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
Purpose / Description
Processing Operation
1
/RST0
O
ATAPI I/F controller / DVD ROM decoder /reset output terminal
Reset terminal 104PIN of IC250 (Active L)
2
/RST1
O
CD/DVD Servo / Data processor reset output terminal
Reset terminal 48PIN of IC201 (Active L)
3
SPSTBY
O
Spindle motor driver power save output terminal
VM1 (spindle motor) control
7
MD2
I
Operation mode change input terminal
Connected to +5V
9
FLCNT
O
Flash memory write-in circuit ON output terminal
Control of Q151
10
SB
O
Spindle motor short brake output terminal
VM1 (spindle motor) control
12
VSS
-
GND
Connected to GND
14-20 D0-D7
I/O
CPU data bus terminal
IC201 and IC250 control data bus
21
VCC
-
Power supply input terminal
Connected to +5V
22-28 HA0-HA6
O
CPU address bus terminal
IC201 and IC250 address bus
30
VSS
-
GND
Connected to GND
31
SWA
I
Loading mechanism SWA input terminal
Connected to +5V
32
SWB
I
Loading mechanism SWB input terminal
Connected to +5V
33
LOEJKEY
I
Loading/eject key input terminal
Connected to +5V
34
INSIDE
I
Pickup inside detection (SW4) input terminal
Active L
37
CSEL
I
IDE cable selection input terminal
CSEL (7PIN) control signal of IC250
38
SWC
I
Loading mechanism SWC input terminal
Connected to +5V
40
/SRVDPCS
O
Servo / Data processor selection output terminal
SDCS (44PIN) selection control signal of IC201
41
/ATACS
O
ATAPI I/F controller / DVD ROM decoder selection output terminal
ATACS (98PIN) selection control signal of IC250
43
PCS
O
VRCK frequency demultiplier output terminal (RF AMP )
PSC (50PIN) control signal of IC101
44
MD0
I
Operation mode change input terminal
Connected to +5V
45
MD1
I
Operation mode change input terminal
Connected to GND
47
/STBY
I
CPU standby input terminal
Connected to +5V
48
/RES
I
CPU reset input terminal
System reset input of IC151 (ActiveL)
49
NMI
I
GND
Connected to GND
50
VSS
-
GND
Connected to GND
51
EXTAL
I
Crystal input terminal
X151 16MHz
52
XTAL
I
Crystal input terminal
X151 16MHz
53
VCC
-
Power supply input terminal
Connected to +5V
55
/RD
O
Lead control terminal
The bus control output of IC201 and IC250
56
/WR
O
Write control terminal
The bus control output of IC201 and IC250
57
FEW
I
Flash memory rewriting permission input
-
58
AVSS
-
GND
Connected to GND
59
FE
I
Focus error input terminal
-
60
LVL
I
Sub beam signal input terminal
-
61-64 TEST0-TEST3
I
Test mode input terminal
Not used for after service
65
TESTCNT
I
Temperature sensor input terminal
-
67
AVCC
-
Power supply input terminal
Connected to +5V
68
/ATAINT
I
ATAPI I/F controller / DVD ROM decoder request signal input terminal
Request signal input from 102PIN of IC250
IC151 (MAIN UNIT : SERVO CONTROL)

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