LCD RECEIVER
KVT-M700
SERVICE MANUAL
© 2002-1 PRINTED IN KOREA
B51-7885-00 (K) 3397
(K : For North America)
(E : For Europe)
(M : For Other Areas)
The following reference numbers
with accessory parts are the same reference
numbers used on EXPLODED VIEW
and PARTS LIST.
217
213
251x2
216
246
824
317
322
318
303
DC14
DC11
DC12
DC13
319x2
320x2
305x2
321
323
5L CONNECTOR
NAVI INTERFACE
ISOLATION
AMP
SWITCH
ANALOG
IC15
IC13
FM/AM
FRONT END
W02-331x-05
IC17
NOISE
AMPLIFIER
MONITOR INTERFACE
IC5
AMP
ISOLATION
DC CONNECTOR
SYSTEM u-COM
RST IC
IC6
MUTE (NOR)
SEL SWITCH
IC4
IC9
J2
J1
RDS
DEMODULATER
IC16
E-VOL
IC2-
IC7
SYSTEM E'S
MUTE
PRE
AMPLIFIER
10,12
IC11
AMPLIFIER
47x4 AUDIO
IC1
LR
NON-FAD
R
L
REAR
LR
FRONT
4.5V 3 PRE OUT
Q27,29
IC8,
J6
J3
Q18
Q17
Q22
B.U. DET
ONLY
KVT-M700(1/2) (E,K,M)
TYPE
ONLY
(K,E)
ONLY
TYPE
(M)
S METER
IFC OUT
AM +B
FM +B
PLL CLK
PLL DATA
AUDIO OUT
RDS OUT
WEDGE ONESELF IN NAVI VOICE AND SELECTED AUDIO LINE
RED
GREEN
BLUE
SYNC
V
GND
REMO
NA
V
RX
NA
V
TX
A
GND
A
V1
L
A
V1
R
A
V2
R
A
V2
L
D
ATA
H
D
ATA
C
REQ
H
REQ
C
MUTE
CLK
CON
RST
EXT
ACC
GND
B.U.
L
MUTE
POWER
FL-
FR-
RL+
ANT
FL+
FR+
RR+
RL-
RR-
NOISE
S METER
R CLK
NOISE 2
QUAL
R DAT
IFC OUT
SEL 2
SEL 1
CH
DA
T
A
H
CH
REQ
C
#
CH
CLK
CH
DA
T
A
C
PHONE
CH
CON
CH
MUTE
CH
RST
CH
REQ
H
#
M
MUTE
M
REQ
C
#
M
REQ
H
#
MD
DA
T
A
C
MD
DA
T
A
H
M
CLK
M
CON
P CON
RESET #
EXT CON
ANT CON
AM +B
FM +B
PLL CLK
PLL DATA
AFS
#
PRE MUTE #
BEEP
SCL
SDA
P-STBY
P-MUTE #
P-SVR
ACC DET #
MUTE
B.U. DET #
4.33MHz
3
CD
L
OUT
CD
R
OUT
AC
IN
FL
AC
IN
FR
AC
IN
RR
AC
IN
RL
AC
IN
FL
AC
IN
FR
T
APE
L
T
APE
R
CD GND
CD R
CD L
MPX
AM
AFS
QUAL
SDA
SCL
RF
LF
LR
RR
S
MUTE
AC OUT L
AC OUT R
LR
RR
AUX IN R
AUX OUT L
AUX OUT R
SDA
SCL
RF
LF
RF
LR
LF
RR
AUX IN L
22
4
2
3
8
4
8
22
2
22
22
3
7
2
44
2
3
2
2
2
2
2
2x3
4
3
5
2
22
2
3
3
8
20MHz
2
3
5L : 1200mV
NAVI : 1200mV
500mV
AV2 : 500mV
470mV
FM (E,M)
FM (K)
AM (E,M)
AM (K)
251mV
230mV
230mV
:
:
:
:
AV1 :
KVT
-M700
2
BLOCK
DIAGRAM
to X25
DRIVER
MOTOR
DRIVER
MOTOR
to MECHANISM PCB
to u-COM
VL/R
ISO
L/R
ISO
BU4066
VL/R
to TV
u-COM
RST
to BAT
ASSY
MECHANISM
CHROMA DECODER
IC500
OSD
IC501
BUFF
BUFF
SEPARATION
IC400
+13V/-16V
IC301
VCOM DRIVER
+5.0V
TIMING
IC200
CONTROL IC
KEY1
u-COM
BRT
SW
+5.0V
IC202
FLIP FLOP
+5.0V
IC201
PLL
INVERTER
BL +9.0V
LCD
7INCH TFT
CFL
+13.0V
+5.3V
-9.3V
-10.9V
to
C. TRAP
SYNC
from
A. DIM
IC20
A. DIMMER
to AN2546FH-A
1H CCD
IC702
MM1389
IC701
EEP ROM
IC700
u-COM
u-COM
VOL
VOL
SRC
ATT
OPEN
RST
REMO
V
BU4066
to
RGB SW
u-COM
u-COM
ISO
NJW1303V
AV IN2
AV IN1
AV OUT
IC203
IC202
IC102
IC105
IC101
IC4
IC3
IC301
IC201
J3
J2
IC302
IC402,403
IC401
MECHA PCB
(X14- ) (B/2)
(X35- ) (A/2)
(X14- ) (A/2)
(E) TYPE
(K,M) TYPE
KVT-M700 (2/2) (E,K,M)
AV 2L
AV 2R
AV 1L
AV 1R
A GND
NG
NR
NAVI SYNC
V GND
NB
RIM-
RIM+
RIM+
RIM-
EXM+
EXM-
EXM-
EXM+
COMP VIDEO
+14V
GND
20MHz
RST
PARK
ILL
BU
ACC
GND
Y
RGBI
HSY
VSY
RGBI
OSD
RGB
RGB
HD
VD
NT/PAL
VSY
SYNI
OSCO
CVOP
VIN
OSCI
KEY1
CLK
VCOM
RGB
SPOI
MOD1
MOD2
SCLS
VRSP
PIOCT
CLDS
(4.0VP-P)
BRT
RSENCE
ESENCE
V GND
OSD CK
SYS GND
V 5V
OSD CS
OSD TRE
OSD DO
OSD RST
V COM
C
HD,VD
HD,VD
DIFFERENCE
COLOR
DIFFERENCE
COLOR
from X14
SYNC CUT (E TYPE ONLY)
NR
NG
NB
DA
T
A
,CLK
OSD
RGB
B.U. DET
ILLUMI
ACC
PARK
TR
TV SYNC
TB
V GND
SC DATA
TG
MC DATA
TV R
REMO
TV L
RST
MC REQ
BP CLK
SC REQ
A GND
SC CON
TX
RST
REMO
RX
M CLK
M CON
M REQ C
M REQ H
M DATA C
M DATA H
to X35
COMP VIDEO
Y/C
VI2
VI1
VI3
VO2
VO1
RGB SW
AO2
AO1
AB2
AB1
I2C
BAS
KVT
-M700
3
BLOCK
DIAGRAM
KVT-M700
4
COMPONENT DESCRIPTION
VIDEO CONTROL UNIT (X14-692x-xx)
REF.
No.
FUNCTION
OPERATION
IC2
DC/DC CONVERTER CONTROLLER
Controls DC/DC converter.
IC3,4
MOTOR DRIVER
Drives TV mechanism motor.
IC101
ISOLATION AMPLIFIER
Isolates TV input audio signal.
IC102
ISOLATION AMPLIFIER
Isolates AV IN1 input audio signal.
IC103,104
AUDIO SW
Switches audio signal.
IC105
ISOLATION AMPLIFIER
Isolates AV IN2 input audio signal.
IC201
RGB SW
Switches TV/NAVI signals (Only Euro model).
IC202
VIDEO SW
Switches video signal to monitor.
IC203
VIDEO SW
Switches video signal of AV OUT.
IC204
VIDEO SW
Switches sync detection video signal.
IC205
SYNC SEPARATION
Detects sync of NT/PAL and AV IN2.
IC301
PANEL u-COM
Controls panel.
IC302
RESET IC
Resets ICs.
IC303
REMOTE BUFFER
Buffers navigation remote control signal.
IC501
REMOTE CONTROL SENSOR
Senses remote control signal.
Q1
B.U. DETECTION
Detects back-up.
Q2
PARKING DETECTION
Detects parking signal.
Q3
B.U. 5V SW
Switches back-up 5V by P.ON.
Q4-6
IC2 POWER SW
Turns on or off IC2 power supply.
Q7
DC/DC SW
Drives fry-back.
Q8
DC/DC SW
Drives chopper.
Q9,10
Q8 DRIVER
Drives Q8.
Q11,12
MOTOR DRIVER POWER SW
Switches motor driver power supply.
Q13
MOTOR DRIVER VOLTAGE SW
Switches motor driver power supply voltage.
Q14,15
8V AVR
Supplies power to motor driver.
Q16,17
B.U. 5V AVR
Supplies 5V to panel u-com.
Q101,102
AUDIO MUTE
Mutes AV OUT audio signal.
Q103,104
AUDIO MUTE DRIVER
Drives AV OUT audio mute.
Q201,202
VIDEO AMPLIFIER
Amplifies video signal.
Q203
VIDEO BUFFER
Buffers video signal.
Q204
IC203 POWER SW
Turns on or off IC203 power supply.
Q301
SW
Is turned on by panel reset key.
Q302
RESET CONTROL
Is controlled by panel reset SW.
Q303
DSI SW
Turns on or off DSI.
Q304,305
RED/GREEN SW
Switches red and green.
Q306,307
DSI OSCILLATOR
Oscillates DSI.
Q308
DSI BUFFER
Buffers DSI.
Q309
KEY DETECTION
Detects VOL DOWN key.
Q501
RED LED SW
Turns on or off red LED.
Q502
BLUE LED SW
Turns on or off blue LED.
Q503
GREEN LED SW
Turns on or off green LED.
KVT-M700
5
COMPONENT DESCRIPTION
VIDEO CONTROL UNIT (X14-692x-xx)
REF.
No.
REF.
No.
FUNCTION
OPERATION
Q504
RED/GREEN SW
Switches red and green LED.
Q505
RED/GREEN SW
Turns on green LED.
Q506
RED/GREEN SW
Turns on red LED.
Q507
GREEN LED SW
Turns on or off green LED.
ELECTRIC UNIT (X25-926x-xx)
FUNCTION
OPERATION
IC1
POWER AMPLIFIER
Controls DC/DC converter.
IC2
8V AVR
Switches 8V.
IC3
DC/DC CONTROLLER
Controls DC/DC converter.
IC4
MUTE LOGIC
Mute logic.
IC5
ISOLATION AMPLIFIER
Isolates AV IN2 audio signal.
IC6
RESET IC
Detects 3.7V.
IC7
SYSTEM E's+
HPF.
IC8
OPERATION AMPLIFIER
For PRE OUT.
IC9
SYSTEM u-COM
Controls system.
IC10
OPERATION AMPLIFIER
For PRE OUT.
IC11
E-VOLUME/MPX
Electric volume and multiplexer.
IC12
OPERATION AMPLIFIER
For PRE OUT.
IC13
AUDIO SW
Switches main source audio signal.
IC14
BUFFER
Buffers 1/2 Vcc and GND.
IC15
ISOLATION AMPLIFIER
Isolates the 5-Line.
IC16
RDS DECODER
Decodes RDS.
IC17
NOISE DETECTION OP AMP.
Detects noise.
IC18
ISOLATION AMPLIFIER
Isolates AV IN audio signal.
Q1
5V AVR
Backs up 5V.
Q2
SVR SW
Switches SVR.
Q3
5V AVR
Backs up 5V.
Q4
P.ON 5V SW
Switches 5V.
Q5,6
P.ON 14V SW
Switches 14V.
Q7,8
DC/DC SW
Switches DC/DC.
Q9
P.ANT SW
Switches P.ANT.
Q10
P.CON SW
Switches P.CON.
Q11
8V AVR
Switches 8V.
Q12,13
P.CON PROTECTOR
Protects P.CON.
Q14
P.ANT SW
Switches P.ANT.
Q15
P.CON SW
Switches P.CON.
Q16
B.U. DETECTOR
Detects back-up.