KENWOOD KVT-940DVD Service Manual

Cover page of KENWOOD KVT-940DVD Service Manual

Service Manual for KENWOOD KVT-940DVD, downloadable as a PDF file.

Manual details

  • Immediate download after payment.
  • Delivered as a PDF file.
  • The manual has 100 pages
  • File size: 8.81 MB
  • Available language versions: English
  • Different language versions may vary sligthly in file size and page count.

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Sample pages

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Thumbnail of page 9
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© 2001-2 PRINTED IN JAPAN
B51-7739 -00 (N) 3376
6.5-inch WIDE TV WITH DVD PLAYER
KVT-910DVD/920DVD
930DVD/940DVD
960DVD
SERVICE MANUAL
212
211
213
250
218x2
243
RC1
223
RC2
224
222
225
240
261
260
241x2
266
265
DC2
DC1
DC3
DC4
263
SIZE AAA
BATTERY
(Not supplied)
264
AV OUT SEL
TI.VOL.ADJ
MODE
SCREEN
V.SEL
DISC/BAND
TRACK/TUNE
V
O
L
V
O
L
EJECT
TI
ATT
SOURCE
V.OFF
VOLUME
DIGITAL OUT
TOUCH PANEL CONTROL
6.5-inch WIDE MONITOR
WITH DVD PLAER
DIGITAL VIDEO
AV OUT SEL
MODE
SCREEN
V.SEL
DIGITAL OUT
KVT-910DVD only
KVT-920DVD
KVT-920DVD (E, W type)
KVT-910DVD (K, R type)
KVT-930DVD (M, H type), KVT-940DVD (X type), KVT-960DVD (C type)
Refer to Parts List.
background image
© 2001-2 PRINTED IN JAPAN
B51-7739 -00 (N) 3376
6.5-inch WIDE TV WITH DVD PLAYER
KVT-910DVD/920DVD
930DVD/940DVD
960DVD
SERVICE MANUAL
212
211
213
250
218x2
243
RC1
223
RC2
224
222
225
240
261
260
241x2
266
265
DC2
DC1
DC3
DC4
263
SIZE AAA
BATTERY
(Not supplied)
264
AV OUT SEL
TI.VOL.ADJ
MODE
SCREEN
V.SEL
DISC/BAND
TRACK/TUNE
V
O
L
V
O
L
EJECT
TI
ATT
SOURCE
V.OFF
VOLUME
DIGITAL OUT
TOUCH PANEL CONTROL
6.5-inch WIDE MONITOR
WITH DVD PLAER
DIGITAL VIDEO
AV OUT SEL
MODE
SCREEN
V.SEL
DIGITAL OUT
KVT-910DVD only
KVT-920DVD
KVT-920DVD (E, W type)
KVT-910DVD (K, R type)
KVT-930DVD (M, H type), KVT-940DVD (X type), KVT-960DVD (C type)
Refer to Parts List.
background image
KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
2
CONTENTS
BLOCK DIAGRAM .........................................................................................3
DISASSEMBLY FOR REPAIR.....................................................................10
COMPONENTS DESCRIPTION...................................................................13
MICROCOMPUTER'S TERMINAL DESCRIPTION .....................................19
CIRCUIT DESCRIPTION..............................................................................42
ADJUSTMENT .............................................................................................46
PC BOARD...................................................................................................53
SCHEMATIC DIAGRAM ..............................................................................70
EXPLODED VIEW ......................................................................................101
PARTS LIST ...............................................................................................104
SPECIFICATIONS......................................................................................129
K type : KVT-910DVD (for North America)
R type : KVT-910DVD (for South America)
E type : KVT-920DVD (for Europe Without Italy)
W type : KVT-920DVD (for Italy)
M type : KVT-930DVD (for Southeastern Asia)
H type : KVT-930DVD (for Korea, Taiwan, Philippines)
X type : KVT-940DVD (for Australia)
C type : KVT-960DVD (for China)
background image
KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
REF5V
SENS
HLZSW
M.GND
MDS
MDW
MDN
HSY
VSY
NAVI
NT/PAL
GND
R
G
B
C.SYNC
BLACK
CONT
A8V
V-MUTE
VGND
YG
XG
XP
TOUCH Y
DGND
SW5V
SCRN
VSEL
AUTODIM
ILL8.4V
LAMP
OPEN/CLOSE
BRIGHT
BLGND
SW14(BL)
SW(X35)
M+
M-
DVD DT7
DVD DT6
DVD DT5
DVD DT4
DVD DT3
DVD DT2
DVD DT1
DVD DT0
DVD ERROR
DVD TOS
DVD DCK
DVD AREQ
DVD AVALID
SECTOR INT
COMMANDER
CD LRCK
CD BCLK
CD ASDATA
FE REQ
FE DATA
BE DATA
BE CLK
BE REQ
SW6.5
GND
KS0
KS1
KR0
KR1
KR2
KR3
RST
EJECTKEY
ILL8.4V
SW5V
REMO
GND
LAMP
BU5V
A0-A9
UCAS
LCAS
RAS
OE
WE
DQ1-DQ16
MLCAS
MUCAS
MRASO
MWE
MOE
MDO-MD15
MA1-MA10
A1-A20
CS1
DO-D15
MUCAS
MRASO
MLCAS
MOE
MWE
RD
CS0
WE1
WE0
RST
DACK
DREQ
WAIT
IRL
VSY
EXHSYNC
CDE
CLK1
9.534804MHz
CLK
O
DD0-DD17
DCLK
MLCAS
MOE
MWE
MRASO
MUCAS
WRL
CS1
CS2
RD
WRH
SHINI
SHCON
T
OUCH
EN
SHSTBY
IRL
WAIT
SYSCS
SHRD
Y
DACK
DREQ
CS0
XG
XP
YG
YP
D0-D15
A0-A21
NT/P
A
L
T
OUCH
Y
T
OUCH
X
CS1
CS2
CS3
RD
RD
WR
WRL
TOUCH X
RAS
CAS
WRH
SYSD
A
T
A
SHCLK
SHD
A
T
A
SHCS
SHRST
SH
VMUTE
RD
CS3
CS0
CS1
CS2
WRH
WRL
RD
WR
CAS
RAS
T
OUCH
7.08M
47K
SW5V
HSY (15.734kHz)
47K
LCAS
WE
UCAS
RAS
RAS
CASH
CASL
RD
WR
OE
DQ1-DQ16
A0-A8
OE
A1-A20
D0-D15
RD
CE
WRH
RD
CS3
WRL
BU5V
47K
LB
OE
UB
CS
WE
RD
DQ1-DQ16
A0-A15
MO2
MO1
01
CONTRAST
02
BLA
CK
04
05
06
PLLSDA
PLLCE
PLLSCK
MULTIPLICATION
606 FREQUENCY
6BAND
MONO
SW5V
SDA
SCL
SB05-03C
+
SUPERCAP
SHINI
SH
VMUTE
SHCON
SYSCS
SHRD
Y
SHSTBY
T
OUCH
EN
SYSD
A
T
A
SHCS
SHD
A
T
A
SHCLK
SHRST
EPSDA
EPSCK
PLICE
PLLSDA
PLLSCK
DVD/TV
SYNC SW
D
ADO
D
A
CLK
SRM
MO
BRIGHT
VMUTE
VSEL
SCREEN
P
ANEL
KEY
HSY
MD
S
.W
.N
AU
T
O
D
IM
BUS RX
BUS TX
REMO
KEYMA
TRIX
B
U5V
PON
3.3DET
5.0DET
6.5DET
8.4DET
RST
SMALL
ILLUM
P
ARK
AC
C
BU
SW5V
BU14V
BEEP
SW8.4V
32.768kHz
12.58M
MUTE
RST
AGND
RCH.LCH
SYS ON.OFF
GND
BU
BU5V
L
H
CLAMP
RGB OUT
H
L
RGB
SW5V
H
L
H
L
HSYNC DVD
VSYNC DVD
PDO-7
CLK
A5V
MCKI
TX
ASDATA
BCLK
SYNC OUT
RGB
DIGITAL OUT
AUDIO OUT
DVD SYNC
I2C
CH-D
A
T
A
DCK
TO
S
A
V
ALID
AREQ
LRCK
ERR
OR
A
CLK
SPDIF-IN
VS
HS
SBA0-11
SB0-15
16.9344M
CD
A
CLK
RD
CS
D0-D7
A0-A8
WR
A
CLK
384FS
SRAS
SCAS
SDQM
SWE
SCLK
SYSCLK
CLK
D0-15
B-CLK
F-REQ
F
-D
ATA
B
-D
ATA
B-REQ
A0-A19
WE
RAS
DQ0-15
A0-11
CAS
CS
DQHL
DQML
7.08M
A1-19
BYTE
WE
CE
D0-15
LCAS
D0-15
A1-A10
UCAS
WE
RAS
CLK27M1
AREQ
A5V
SBA0-11
SB0-15
LRCK
2.5V
SW3.3V
CLK
27M1
A5V
SW5V
SW5V
DVD RGB
A3.3V
A1-A19
D0-15
R
OMCS
WR
SW5V
D0-15
A1-A10
CASH
RAS
CASL
RD
WR
ILL8.4V
BUS+.-
ACC
BU
ILL
GND
PARK
SW5V
TV SYNC
TV RGB
+
2200u
SW5V
+
A8V
A8V
SW5V
5.6K
5.6K
LRCLK
SW14V
B
U5V
SW6.5V
SW3.3V
SW8.4V
D3F60
B
U5V
SW5V
1SR154-400
SW14V(X35)
SW14V(BL)
150
220
330
270
270
330
SW8.4V
K.J SW5V
E BU5V
ATT
VOL-
KR0
KS0
KS1
VOL+
TI
SOUCE
DOWN
KR1
-
UP
KR2
KR3
L,R
SW5V
C
.VIDEO
to X35
VIDEO UNIT
SW
PCB
DVD
MECHA
1M
MSM5118165B60T
DRAM
HD64412F
Q2i
TC7W04FU
1/3
HD6417041AF128
16BIT
TC7SHU04F
DRAM
256K 16BIT
MSM514265CP-60
MSM531622F
1M
16BIT
ROM1
SRAM
LC351016AT-70U
16BIT
64K
TC74VHCT08AF
(4.7NS)
TA8428F
DRIVER
MOTOR
M62354FP
D/A
NJM4565V
BUFF
BA3830F
SPEANA
BU3616K
V-DAC
7.99M
W02-1547-05
OSC
MULTI
MONO
TC9246F
PLL
TC7W04FU
2/3
TC7W04FU
3/3
EEPROM
HA12187FP
BUSIC
OPTICAL
DIGITAL
SWITCH
ITALY
OUTPUT
SYSTEM u-COM
UPD703035AGC
V850
L78-0533-05
L78-0575-05
to DSP BOX
S62-08363-05
RCH,LCH
ILL,PARK
ACC,BU
DETECTOR
PST9137NR
RST
1.2V(RMS) AT 0dB DISC
MZ
E58-0886-05
RGB SW
MM1389XFBE
RGB SW
MM1234XFBE
BUFF
NJM2235
LPF
BUFF
MUTE
DAC
AK4353
AUDIO
ENCODER
ADV7170KSU
VIDEO
DRIVER
NJM2267V
75
NJM4565V
NJM4565V
2SD2114K
MPEG
L64021H
DECODER
LCX16244
512K
HY57V16160DTC8
SDRAM
HD6417040AFI28
SH7042
FLASHROM
LHF40V13
MSM5118165B60T
DRAM
16BIT
256K
1M
16BIT
16BIT
LCX16244
VHCT125
VHCT125
REG
OSC
27M
NJU7222U50
REG
PLL
PLL1700
PLL
TC9246F
TC7SH04F
TC74SH04FU
TC74LCX245
TCLCX16244
REG
NJU7222U33
REG
DC/DC
BA9743AFV
DC/DC
BA9743AFV
T
A
78DSO5F
BUS
E58-0899-05
DC CONNECTOR
FUSE.COIL BOX
B.U
ACC
ILL
GND
PARK
AUDIO
RCA
OUT
A/V
INTERFACE
L, GND
R, GND
1V(RMS) AT 0dB DISK
1 CORE SHIELD
2
TC4W66F
C.VIDEO
GND
REMO
SYNC
GND
RGB
MINI DIN
COAXIAL CABLE
4 CORE SHIELD
2SJ377
AN7708SP
REMO
RS-141
SW5V
KEY MATRIX
VOL-
VOL+ ATT
RST
SOURCE
TI
EJECT
DOWN
UP
LCX74
TC9246
TC7WH123FU
IC15
IC224
IC3
IC214
IC209
IC208
IC205
IC206
IC210
IC227
IC226
IC218
IC223
IC225
IC222
IC221
IC220
IC217
IC211
IC12
IC19
IC27
IC16
IC21
IC6
IC9
IC3
IC13
IC24
IC10
IC14
IC11
IC15
IC20
IC207
IC202
IC203
IC200
IC212
SW PCB
(X14)
(B/2)
(A/2)
34
BLOCK DIAGRAM
background image
KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
TV8V
SW8V
V-IN2 COMP.
V-IN1 COMP.
DVD-VIDEO COMP
SYNC
RGB
L.R
SW8V
RGB
RGB
Ffrom X86 TV
V
-OUT
COMP
.
(J
,E)
TYPE
(K,M,H,C)
TYPE
SW8V
2
-9.1V
+9.9V
REQC
MUTE
CHCLK
DATAH
DATAC
REQH
CHCON
2
7
2
2
2
2
2
RGBSW
SEL2
SEL4
E-VOL
TVSDA
TVSCL
AMUTE
RXD
TXD
TVBU5V
MPX
CDL
PHGND
AM
CDR
CDGND
MUXR
MUXL
FMDETOUT
AMDETOUT
AM+B
FM+B
RDSOUT
COMMON+B
P-ON5V
PLL
NON FADER
FRONT
REAR
SW8V
SW5V
MAIN-ANT SUB-ANT (J TYPE)
3
(E,M,H,C) TYPE
(E,K,M,) TYPE
SW8V
4.33MHz
ACOUTL
T
APER
T
APEL
ACOUTR
OUTFL
OUTFR
OUTRL
OUTRR
3
LOUT1.R
OUT1
4
LCH,
RCH
3
2
DEL,DER
B-G,B-R
BRL,BRR
SW8V
4CH
2CH
BUS OFF
BUS+
RST
MUTE
BUS ON
BUS-
SW8V
MUTE
+B DET
BU5V
PCON
FM+B
AM+B
RST
MUTE
SCK
SD
A
REQH
CHCON
REQC
D
ATA
C
CHCLK
D
ATA
H
MUTE
STBY
SVR
P MUTE
QU
A
L
NOISE
R-D
A
T
PLL
RCLK
2
BU5V
43
ACC
BU
ILL
7
2
2
2
2ZONE/NAVI SELECT
2
ERL,ERR
EFL,EFR
NFL,NFR
(ARL,ARR)
(AFL,AFR)
14.4V
GND
ILL
LMUTE
+B
ACC
ANTCON
PCON
RR-
RL+
RL-
RR+
FR+
FR-
FL-
FL+
4
4
4
4
2
2
2
AM: 700mV(J,K)/900mV(E,M,H,C)
FM: 1,800mV(J,K)/1,250mV(E,M,H,C)
CD, DVD:4,200mV
REAR L/R
FRONT L/R
BFL,BFR,
B-L,
7
4
4
2
2
-9.1V
+9.9V
14.4V
ACR,
2ACR
ISO AMP.
M5280FP
ISO AMP.
M5280FP
M5280FP
ISO AMP.
ISO AMP.
M5280FP
TO MONITOR
AV IN2
AV IN1
R
L
R
L
L
R
75
NJM2267V
DRIVER
MUTE
ISO AMP.
M5280
RGB
SW
X86 UNIT
V
V
to
TV u-COM
M5222FP
E-VOL.
V
-OUT
L-OUT
R-OUT
5L CONNECTOR
to
SYSTEM uCOM
to
NAVI I/F
703035AGC-014
TV uCOM
IC78
BUFFER
NJM4565V
PST9137NR
RST IC
TDA7400D
MPX/E-VOL
IC2-
FM/AM F/E
H.P.F
TDA7401
SYSTEM E s +
SYSTEM u-COM
to
NOISE AMP
NJM4565
TDA7479D
RDS
SYSTEM u-COM
to
DEMODULATER
FM+B.AM+B
DTC124EU
,
SW
OPAMP
to
SYSTEM u-COM
TC4W66F
NJM4565M
BUFFER
NJM4565M
ISO AMP.
TC4W66F
MZ-BUS
CONNECTOR
UPD72042BGT
BUS DRIVER
PST9130NR
RST IC
MUTE
DRIVER
to RDS
to F/E
SYSTEM uCOM
784215GC206
IC31
to F/E
ILL
DET
BU
DET
ACC
DET
BR24C01AF
E2PROM
to 5L CONNECTOR
BU4066BF
MUTE
MUTE
MUTE
BU4066BF
POWER AMP.IC
45Wx4CH
PCON
PRE AMP.
NJM4565M
x3
AV I/F
NAVI I/F
FRONT RIGHT
REAR RIGHT
REAR LEFT
FRONT LEFT
NONFADING R
NONFADING L
LEVEL : VOL.MAX
: (1kHz 40k DEV.60dBuEMF)E,M,H,C TYPE
FM : (1kHz 75k DEV.60dBuEMF)J,K TYPE
AM : (400Hz 30%MOD.74dBuEMF)
IC87
IC83
IC84
IC86
IC92
IC91
IC89
IC61
IC62
IC54
IC56
IC57,58
IC42,43
IC40,41
IC55
IC51
IC74
IC30
IC32
IC34
IC65,66
IC50
IC88
IC60
IC79
IC72,73,80
FM: 400mV(E,M,H,C)
FM: 400mV(J,K)
AM: 180mV(E,M,H,C)
AM: 160mV(J,K)
1,200mV
1,200mV
AM: 230mV
FM: 630mV
CD, DVD: 1,750mV
FM: 760mV(K,J TYPE) / 520mV(E,M,H,C TYPE)
AM: 280mV(K,J TYPE) / 360mV(E,M,H,C TYPE)
CD,DVD :
(X25)
22K
22K
22K
22K
56
BLOCK DIAGRAM
background image
KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
7
BLOCK DIAGRAM
+5.3V
ILL8.4V (ILL DC)
SW14V/BLGND
A8V
SW5V
REF5V
-16V
VGH
VSS
VGL
VCC
VSHL1/VSHL2
VSHA1/VSHA2
+13V
HLZSW
V.SEL/SCREEN
SENS/M.GND
MDW/MDN/PWN/GND
NAVI/NT-PAL/MDS
HSY
SYNC
OUT
COM
FRP
FRP
R/G/B/C.SYNC/V.GND
BLACK/CONT
OUT
COM
V-MUTE
M+/M+/M-/M-
X0/Y0
/X1/Y1
/V.GND
VR/VG/VB
COM
/SPIO/CTR/PS
/HR/SPOI/GND
MODE2/MODE1
/VR/SPS/CLS/CLD
/LAMP/BRIGHT
SW-OPEN
VSY/HSY
VCS
YG/XG//XP/TOUCH X/TOUCH Y/D.GND
CV
OP
VIN
AUTODM
DC-DC
CONVERTER
LZ9GJ24
TIMING CONTROLLER
TC74AC74FT
V DELAY
-16V
-9.6V
-16V
-11V
+13V
+12V
+12V
+7.5V
NJM4580V
COM AMP
IR3Y26A
SYNCHRONIZED
&
SIGNAL SEPARATOR
SENSOR
POSITION
PANEL SLIDE
MOTOR
TOUCH PANEL
SWITCH CIRCUIT
SWITCH CIRCUIT
FRONT PANEL
INVERTER &
BACK LIGHT
OPEN/CLOSE SW
6.5INCH LCD
TOUCH PANEL
NJM4580E
COM AMP
IR3Y26A
SYNCHRONIZED
&
SIGNAL
SENSOR
POSITION
PANEL SLIDE
MOTOR
TOUCH PANEL
SWITCH CIRCUIT
SWITCH CIRCUIT
FRONT PANEL
INVERTER &
BACK LIGHT
OPEN/CLOSE SW
6.5INCH LCD
PANEL
HORIZONTAL
DETECTION
TIMING
CONTROLLER
LZ9GJ24
IC40
IC70
IC130
IC90
IC91
OR
TOUCH
SEPARATOR
PLL & LPF
NJM2107F
NJM2107F
PLL & LPF
IC70
IC40
IC130
IC91
IC90
DMA4603H
DIMMER SENSOR
V DERAY
TC74AC74FT
SENSOR
DMA4603H
DIMMER
VIDEO BOARD (D/4)
BOARD (C/4)
SWITCH
POWER LINE BLOCK DIAGRAM
(X35-)
VIDEO BOARD (D/4)
BOARD (C/4)
SWITCH
(A/4)
(A/4)
SIGNAL LINE BLOCK DIAGRAM

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