Kenwood KVT-719DVD User manual

This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
MONITOR WITH DVD RECEIVER
KVT-719DVD/729DVD
/729DVDY/739DVD
SERVICE MANUAL © 2007-3 PRINTED IN JAPAN
B53-0507-00 (N)552
SIZE AAA BATTERY
(NOT SUPPLIED)
Cord with plug (6m)
(E30-6688-05)
Carrying case
(W01-1661-05)
Cord with plug (6m)
(E30-6483-05)
DC cord (6m)
(E30-6681-15)
DC cord (6m)
(E30-6680-05)
Screw set
(N99-1775-05)
Mounting hardware
(J22-0054-14) x2
Lever
(D10-4674-04) x2
Remote controller
(A70-2082-15 : RC-DV330) M,X type
(A70-2083-15 : RC-DV340) E,K,R type
Mounting hardware assy
(J21-9823-03)
Escutcheon
(B07-3159-02)
Illustrations is KVT-719DVD
TDF SPARE-PANEL
Screw set
(N99-1753-05)
Antenna adaptor
(T90-0552-05)
Cord with plug (1m)
(E30-6693-05)
DC cord (35cm)
(E30-6676-15)
DC cord (35cm)
(E30-6675-05)
Wire band
(J61-0620-05) x2
E type M,X type
K,M,R,X type
KVT-719DVD/729DVD
/729DVDY/739DVD
MODEL TDF PANEL No. TDF NAME
Y33-2760-60 TDF-719DVD
Illustrations is RC-DV340

2
KVT-719DVD/729DVD
/729DVDY/739DVD
●The IC106 in the DIGITAL I/O UNIT (X88-2020-11) is not a replaceable component.
In case of defective of this IC, replace the entire unit (X88-2020-11).
●The IC5, IC21, and IC60 in the DVD unit (X37-1120-03) are not replaceable components.
In case of defective of any of these ICs, replace the DVD mechanism assembly. (The IC5 has a device key, which shall be
made consistent with the S/No. of the mechanism assembly after replacement. Thus you cannot replace only the board.)
In assembling the Traverse UD arm, Drive cam assembly,
Drive gear 5 and Drive gear 4C, align register marks on
these components.
GEAR POSITION IN A DVD MECHANISM
Drive gear 5
Drive cam assembly
Do not forcibly press gears to engage their teeth
but freely let the gears fall under their own weight
and engage their teeth.
Traverse UD arm
Drive gear 4C
Inscriptions
(register marks)
on gears
Align 6 marks
as shown in the
figure

3
KVT-719DVD/729DVD
/729DVDY/739DVD
Observe the instructions described in this document when
you are going to replace the parts or components that are
shown in this document.
1. Replacement of motor flat spring
• When mounting the flat spring that shall be in contact
with the worm gear, press the spring toward the direction
shown with an arrow so that there will be no gap between
the tip of the gear and the spring and then mount the
spring. The gear shall be pressure-inserted into the
motor.
• Note that there are two motors. Above operation of
mounting the flat spring is required on both of them.
CAUTIONS IN ASSEMBLING PANEL DRIVE MECHANISM (A10-5171)
Tilt drive gear train Slide drive gear train
Mount the flat spring
while pressing it
towards the direction
shown with an arrow so
that there will be no
clearance.
Mount the flat spring
while pressing it
towards the direction
shown with an arrow so
that there will be no
clearance.
DC Motor
Worm
Flat Spring
DC Motor
Worm
Flat Spring

4
KVT-719DVD/729DVD
/729DVDY/739DVD
2. Phase matching among gears
• Monitor tilt is driven under the control of the
rotary sensor and the phase matching among
gears and sensor is required.
The procedure for the phase matching is
described in the rest of this subsection.
1) Align the mark on the rack with the pin. (When
the monitor is folded down at 0 degree, the
rack is located at the position where the mark
and pin are aligned.
2) Insert the gear while keeping aligning the rack
pin with the notched section on the tilt gear 7.
3) Pre-assemble the tilt motor bracket assembly
(BKT Assy).
4) Align the notch on the sensor BKT with the
concave section of the sensor in the Assy.
5) While keeping the conditions stated in 3) and
4), insert the tilt motor BKT Assy transversally,
and fix the motor.
Tilt drive gear train
Location of mark
on the Rack
T-Rack-A Pin
Location of
notched section
Tilt Gear 7
Location of
notched section
Sensor Tilt Sensor Bkt
CAUTIONS IN ASSEMBLING PANEL DRIVE MECHANISM (A10-5171)

5
KVT-719DVD/729DVD
/729DVDY/739DVD
3. Insertion of slider
• This subsection describes cautions for inserting the
slider (slide section inside of the unit) into the outer
chassis.
1) On the rail at the left side of the slider, there is a part
called a stabilizer that is used to minimize play in right
and left sides.
The slide is made of resin. (Note that the rail is shown
at the right side of the slider in the picture.)
When inserting the slider, press the stabilizer towards
the direction shown with a blue arrow and insert it into
the groove on the rail.
2) PCB holder is pushed out towards the downside
of the picture due to the spring force and thus the
chassis and photo reflection sheet may be get caught
by the holder during the assembly.
Insert the slider while slightly lifting up the holder with
a pair of tweezers or any other similar device.
3) Insert the gear after confirming that the both of D
shaft gears at the right and left sides of the slider are
aliened with the tip of the right and left racks on the
chassis.
(Otherwise the slider will be inserted sidelong.
(Slider -Slide section inside of the unit)
Stabilizer
PCB Holder
These portions
tend to be get
caught.
Hold and lift up the holder
with a pair of tweezers.
Push the opposite side of
the PCB holder towards
the downside of the picture
and lift up the portions
that may get caught.
D shaft gear
D shaft gear
Rack gear
Rack gear
CAUTIONS IN ASSEMBLING PANEL DRIVE MECHANISM (A10-5171)

6
KVT-719DVD/729DVD /729DVDY/739DVD
BLOCK DIAGRAM
BU3.3V
IC1
PON 3.3V
Q22
SW14V
J1
DC CN
DC/DC
IC101
D5V
MECHA
7.5V or 5V V5V
TC3.3V
DC/DC
IC102
USB5V
SW3.3V
P5V
Q43
LED9V
DVDA8V
Q31
AREF
A8V
Q35
DRIVER
MOTOR
IC501,502
iPod
CN401
SPDIF
J501
IC400 IC401
AUDIO SEL
IC408 (SUB)
IC407 (MAIN)
to DVD MECHA
CN502CN503
to X34
SYS-COM
IC201
IC402
PARALLEL
SERIAL
Q304,306-308
RGB SW
IC403
IC404
RGB SW
CN501
GAMMA IC
IC301
to X88
CN501
VIDEO IN SW
IC405
DVD MUTE
IC406
OUT SW
VIDEO
IC450
SW
LED
SERIAL
(MID)
PARALLEL
CN503
IC303
to X35 to X16
18.5V
DC/DC
IC100
-12V 12.5V
to X14
CN300
SERIAL
PARALLEL
IC301
CONTROLLER
TIMING
IC302
to INV
CN302
CN104
to X14
CN101
to X16
J101
SI
ZACTION MECHA
CN303
to X35
LED SW
OPEN/CLOSE
SCREEN//MODE
FNC/VSEL/
CIRCUIT
INVERTER
to BACK LIGHT
CN1
to TOUCH PANEL
CN501
to LCD PANEL
CN503
LCD PANELTOUCH PANELBACK LIGHT
DIMMER
AUTO
IC401
to X16
J201
GND
IC201
REMO
SW
EJECT/
SRC/
RESET
ATT/
VOL+
VOL/
DISP
FM
AM
CN201
(MID) MINI LCD
DVD MECHA
DC CN
J1
RELAY SW
J2
BU5V
Q51
SW5V
Q53
A8V
Q71
9V (MID)
IC904
1/2VCC (MID)
V5V
Q61
IC910,911
POWER IC
IC301
J501
LEVEL SHIFT
IC106
IC501,502
DET MUTE E2PROM
AUDIO
u-COM
IC101
SERIAL
PARALLEL
IC105
5V AMP
(MID)
IC901
(MID)
5V AMP
IC902
(MID)
5V AMP
IC903
MUTE MUTE MUTE MUTE
SEL
AUDIO
IC203 (SUB)
IC202 (MAIN)
OUTPUT SECTION
E-VOL
INPUT
SECTION
REAR
PRE OUT
SUB AV OUTFRONT
J351
LX
J401
A251
F/E
E2PROM
RDS IC
IC251
AV IN1
J703
BACK CAM
AV IN
AV OUT
IC723
VIDEO SW
IC804
IC803
VIDEO SW
VIDEO SW
IC805
VSYNC SW
J702
NAVI I/F TV-TUNER I/F
J701
IC701
RGB SW
809
CN327
IC332
A5V
IC105
1.8V
USB2
5V (MID)5V
USB1
OSD IC
IC309
CPLD
IC322 IC104
MEDIA PROCESSOR
IC106
VIDEO ENC
IC302
to X14
X100 IC301
2ch DAC
IC305
LPF
IC211 IC202,203 IC200
32,768kHz
X202
IC201,205
NOR FLASH
128Mbit 256Mbit
SDRAM
X'TAL
14.7456MHz
IC101 (MID)
IC100
IC207
AUTHENTICATION
iPod
PROTECT
OVER CURRENT
USB CN
CN101
USB2
5V (MID)
5V
USB1
W251
IC201
BUFF
DELAY
REG
REG
BUFF
IC807-
806,810
IC802,
ISOISO
ISO ISO
BU DET
ACC DET
PON
MECHA 7.5V or 5V
A8VV5V
USB
iPod
DVD
AMUTE
DVD SCL
DVD S DA
DVD RESET
DISC DET
MAIN
SUB
BU DET
SW1/2/3/4 AUTO
iPod COMP
A8V
BU3.3V
SEL DATA
SEL CLK
V IN SW1/2/3
V OUT SW
VCOM IN VR/VG/VB
SW3.3V
EX M+/M- RI M+/M- SW A/B/C Z SWT/CNT R SENS
XDATA
YDATA
OPEN/CLOSE
REMO
SRC
KEY3
RESET
X0/X1/Y0
SP DATA
PWM
HSY ADJ
ENABLE
INV PWM
INV SW
SP CLK
VCOM R/G/B POLS
V5V
V5V
OSD BLK
GAN COMP
V5V
DVD R/G/B
DVD COMP
M CLK
M DATA
SYS ON
M REQ
S DATA
S REQ
RESET
VOUT
V5V
RESET
X34 COMP
X34 R/G/B
GRA SYNC
V5V
GRA R/G/B
D5V
X16 ILL
LED9V
LED R
LED G
LED B
(MID)
SDA SCL
RGB SW1/2
GAN VSW
DVD R/G/B
GAN SYNC SW
REMO
SRC
MINI CLK
MINI CS
MINI DATA
(MID)
EJECT
RESET
REMO
KEY2
OSD MODE
FILD DET
CIR BU DET
CIRMREQ
CIR STBY
CIR CON
CIR SREQ
CIR RST
CIR INI
CIR RX
CIR TX
SW3.3V
NCLP
BLK HSY
HSY
VSY
STH
DOT CLK
CPV
BL14V
TC3.3V
PON3.3V
V5V
MECHA8V
LED9V
TP3.3V
SMOTOR M/P
TMOTOR M/P
HPOSI1/2/3/4
MODE1/2/3
NT/PAL
MIRROR
KEY1 OPEN/CLOSE
SP DATA
SP CLK
POLS
BLK/HSY
VSY/CPV
NCLP
DOT CLK
STH
VCOM R/G/B AUTO DIM
EX M+/M-
RI M+/M-
SW A/B/C
Z SWT/CNT
R SENS
DSI
(MID)
MINI CS
MINI CLK
MINI DATA
PANEL DET
RESET
EJECT
REMO
KEY2
SRC BU3.3V
+12.5V
BL14V
INV PWM
ENABLE
PWM
X1
XDATA
YDATA
X0
Y0
CX
CPH1
CPV2
HDIR
STV1/2
UPSD
STH1/2
OE1/2/3
R/G/B VCOM
TP3.3V PON3.3V TC3.3V 18.5V -12V V5V AUTO DIM
TP3.3V
PON3.3V
BL14V
TC3.3V
18.5V
-12V
LED9V
V5V
SW3.3V
LED9V
LED R
(MID)
LED G
X16 ILL
D5V
LED B
BU3.3V
SW3.3V
X16 ILL
LED9V
LED R
LED G
(MID)
D5V
LED B
DET PAN E L
KEY2
SRC RESET EJECT
MINI DATA MINI CLK MINI CS
REMO
X16 ILL
D5V
LED G
LED R
LED9V
SW3.3V
LED R
LED G
LED B
P5V
V5V
D5V
A8V
AREF
LINE MUTE
EXT CON
ANT CON
P CON
W REMO
ILLUMI
REVERSE
PARKING
PWIC STBY
BU DET
PON OFFSET DET
RELAY SW1/2 RELAY DET1/2
I2C SCL/SDA MUTE 0/1/2/A/B/C PWIC DC DET
BU MUTE
BU5V SW5V
BEEP
MUTE
SYS ON
M DATA
M CLK
M REQ
BU5V
BU
S DATA
S REQ
MUTE (SYS BU-DET)
RESET
REMO
A IN SEL 1/2/3/4
V IN SEL 1/2/3
V OUT SEL 1/2/3
SEL DATA SEL CLK
SW5V
TV RESET
SW5V
W REMO MIX REMO
V SYNC DET
AUTO SW 1/2
TV SC CON TV JUDGE TV CLK TV MC REQ TV SC REQ TV MC DATA TV SC DATA NAVI TX NAVI RX RGB MUTE RGB SW
RDS CLK TUN SMET TUN SCL TUN SDA TUN IFC AM +B RDS QAUAL RDS DATA RDS AFS RDS NOISE
LX RST LX CON LX MUTE LX CLK LX REQ M LX REQ S LX DATA M LX DATA S
BU5V BU5V BU5V BU5V
X14 AUDIO
TV
AVI N 1
LX
MAIN
SUB
TUNER
NAVI
AVOUT
A8V
BU3.3V
SW3.3V
V5V
USB5V
A8V
SW5V
A8V
V5V
AVI N 1
V5V
NAVI
TV
BACK CAM AVI N 1
X14 VIDEO
MIX REMO
NAVI RX
NAVI TX
A8V
TV
NAVI RGB TV RGB
V5V
RGB SW RGB MUTE
TV MC REQ
TV SC DATA
TV MC DATA
TV SC REQ
TV SC CON
TV CLK
TV JUDGE
TV RST
AVI N 1
BACK CAM
USB5V V5V SW3.3V BU3.3V A8V
A8V
SW3.3V
OSD R/G/B OSD BCK/FILD DET OSD MODE HSY/VSY
STH DOT CLK
GRA SYNCVSYNC
HSYNC
GRA R/G/B
SP CLK EP R/G/B
CPV
OSD DATA
OSD CE
OSD CLK
CS6
CS0
CIR BU DET
CIR CON
CIR SREQ
CIR MREQ
CIR STBY
CIR RST
CIR INI
CIR MDATA
CIR SDATA
SDO0
LRCLK
SCLK
MCLK
USB L/R
CP READY
SCL SDA
ENB (MID) ENA FLGB (MID) FLGA
ADDRESS DATA
USBm0 USBp0
USB5V
USBm1 USBp1
SPDIF
R/G/B
GAN
OSD R/G/B
TC3.3V
V5V
MUTE
BU5V
A8V
BU
A8V
NAVI
BU
V IN SEL 1/2/3
V OUT SEL 1/2/3
VIN
X14 VIDEO
RGB OUT
CIR RST
BACK CAM
V5VV5V
(X14-983)
(X35-471)
(X35-471)
(X34-475)
(X88-200)
(X16-392)
(X16-392)

7
KVT-719DVD/729DVD
/729DVDY/739DVD
BLOCK DIAGRAM
(X37-112)
MOTOR
SPINDLE
LIM-SW
HALL IC
M
LO/EJ
DC MOTOR 2PHASE
STEPPING
KDP2C
OPTICAL
PICKUP
(28P)
CONNECTOR
P5V
P5V ACTUATER
MOTOR &
DRIVER
(30P)
CONNECTOR
A5V A5V
IC39
IOPDET
A3.3V
Q27
Q12,13
Q10,11
D3.3V
IC1
SDRAM
IC54
D3.3V
D3.3V
A3.3V V3.3V
PLL3.3V D1.2V
D3.3V
Q25
ROM D-FF
IC10
IC5 IC42
D3.3V D3.3V
FLASH
D3.3V
LOGIC
IC55
CONNECTOR(35P)
BUFFER
IC53
IC57
AUDIO
DAC
IC15
VIDEO AMP
IC12
3.3V to 1.2V
IC49
D3.3V
D1.2V
IC50,51
L.P.F
A8V
5V REG
IC60
A8V
A5V
A5V
ADATA0-2
BCK/LRCK
PD
Y/G,Pb/B,Pr/R
VIDEO
SPDIF
AMUTE
SDA,SCL
AREFL
Lch
MASTER/SLAVE
RESET
CONNECTOR
(10P)
(50P)
CONNECTOR
Rch
AREFR
DISC DET
IFSELIF-SEL
SW LOST
SW LOEND
D5V
A5V
P5V
A8V
D7
D3.3V
V3.3V
PLL3.3V
A3.3V
IC9
E2PROM
D3.3V
D1.2V
IC21
SW REG
F/E+B/E+MCU
DVN
DISC
Q14,15
D5V
VIDEO AMP
HALL BIAS U.V.W COIL HALL SENSOR
PDIC VCC
DVD LD/CD LD
HFM
VREFH
THERMISTER
PDIC I/V OUT
IMON/VR DVD/VR CD
FO+-,TR+-
3
3
H1H,H1L,HB
A1,A2,A3
FO6,RO6
FO4,RO4
FO5,RO5
FO3,RO3
FO2,RO2
VREF,EC VHALF
STBY BMS FG
SPIN,IN2-6,MUTE
4
LPC01/LPC02
DRV0
VREFH
LPC1/LPC2
A,B,C,D,E,F,FE1,FE2,RF
TEMP(AD1)
2
9
VHALF
DQM3,P9
DRV1,DRV2,DRV3,DRV4
PWM0,PWM1,P10
FG,P5
MDQ0-15
NWE,NCAS,NRAS,NCSM,MCK0
BA0-1,MA0-11,DQM0-1
IOP
(AD0)
7
2
21
16
2
27MHz
IF-SEL
E
DQ0-15
W,G A0-20
CLR
D1-8
Q1,Q2
CLK
Q3-8
23
8
EXADT11
EXADT DQM2 NEXCE 0-15
A19
NEXWE
EXADR16-19 EXADT0-15 NEXOE P15 NEXWE P6,P14 P0,P3 DD0-15,DA0-1,CS1FX,CS3FX INTREQ,IORDY,DASP,PDIAG DMARQ,DIOW,DIORDMACK RESET MASTER
16 4
2
3
4
2
R+
L-
R-
L+
DACCK
ADOUT3
P1,P2
IECOUT
DAC4OUT
DAC0-3OUT
SRCK,LRCK
ADOUT0-2
2
2
3
PON
3
2
6
30
ATAPI I/F
P7,P8
NRST
POR
SW2
SW1
2
4
SW EIEND
P12(CE)
CLAMP/BIAS,
POWER SAVE

8
KVT-719DVD/729DVD
/729DVDY/739DVD
●VIDEO CONTROL UNIT (X14-983x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 3.3V regulator BU_3.3V
IC2 3.3V regulator TC3.3V
IC10 OP AMP AREF power supply (4V)
IC101 DC-DC control IC DC-DC control (Mechanism 7.5V, V5V)
IC102 DC-DC control IC DC-DC control (SW3.3V, D5V)
IC201 MPU System µ-com
IC202 Reset IC Reset IC
IC203 E2MROM Save settings
IC205 AND Inverter PWM buffer
IC301 Chroma gamma Chroma gamma
IC302 NOT HSY reverse buffer
IC303 Monostable multivibrator HSYNC delay
IC304 NOT HSYNC delay
IC400 VIDEO ISO AMP iPod video signal
IC401 AUDIO ISO AMP iPod audio signal
IC402 Serial/parallel conversion Extension of µ-com port
IC403 Video switch X34 RGB or Graphic RGB
IC404 Video switch IC403 RGB or DVD RGB
IC405 Video switch iPod or DVD or Graphic or X34 Composite signal
IC406 Video switch For AVOUT (To X34)
IC407 Audio selector MAIN
IC408 Audio selector SUB
IC501 Motor driver Tilt
IC502 Motor driver Slide
IC503 NOT Remote controller signal waveform shaping
Q1 SW ACC_DET detection circuit
Q2~10 SW BU_DET detection circuit
Q13 Short protection BU power supply regulator (8.5V)
Q14 8.5V regulator BU power supply regulator (8.5V)
Q15~17 8.5V regulator control BU power supply regulator (8.5V)
Q19~21 SW P-ON 14V control
Q22 SW FET P-ON 14V ON/OFF
Q23,24 Emitter follower Analogue power supply reference circuit
Q25,26 SW T_P3.3V switch
Q31 8V regulator DVD A8V regulator
Q32~34 8V regulator control DVD A8V regulator
Q35 8V regulator A8V regulator
Q36~38 8V regulator control A8V regulator
Q43 9V regulator LED9V regulator
Q44~46 9V regulator control LED9V regulator
COMPONENTS DESCRIPTION

9
KVT-719DVD/729DVD
/729DVDY/739DVD
Ref. No. Application / Function Operation / Condition / Compatibility
Q101 SW DC-DC output voltage switching
Q103,106
Q108,111
SW DC-DC protection control
Q104 SW DC-DC SW FET (5V or 8V)
Q105 SW DC-DC SW FET (5V)
Q109 SW DC-DC SW FET (3.3V)
Q110 SW DC-DC SW FET (5V)
Q201 SW µ-com reset SW
Q203 SW KEY RESET
Q204,205
SW LED SW (Red)
Q206,207 SW LED SW (Green)
Q208~210 SW TDF power supply SW
Q301 Buffer Composite signal
Q304 Buffer VCOM
Q305 MUTE IC301 SYNC OUT MUTE
Q306 Buffer RGB Signal_R
Q307 Buffer RGB Signal_G
Q308 Buffer RGB Signal_B
Q309 Buffer HSY SYNC
Q401 Buffer Graphic SYNC
Q501 MUTE DVD MUTE (Lch)
Q502 MUTE DVD MUTE (Rch)
Q503 SW DVD MUTE control
Q504 Buffer SPDIF signal
Q508 Buffer Remote control signal
●SWITCH UNIT (X16-3920-10)
Ref. No. Application / Function Operation / Condition / Compatibility
IC201 Remote controller photoreceptor Remote controller photoreceptor
Q101 For switching DSI signal DSI signal control
Q206 For switching LED Switch LED_Red or LED_Green
●ELECTRIC UNIT (X34-475x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC61 3 terminal regulator V5V generation
IC71 3 terminal regulator Audio8V and Tuner8V generation
IC101 Pin 100 µ-com Primarily, audio board control
IC102 Voltage detection IC µ-com reset voltage (4.2V) monitoring
IC104 Logic IC (AND) Remote controller data switching (REMO/WREMO)
IC105 Serial and parallel conversion IC Audio/Video selector control data output from µ-com
IC106 Logic IC (AND x 4) 5V step-up for the signal data between the unit and BOX
COMPONENTS DESCRIPTION

10
KVT-719DVD/729DVD
/729DVDY/739DVD
Ref. No. Application / Function Operation / Condition / Compatibility
IC201 Electronic volume IC Audio volume control and audio signal selection
IC202 Logic IC (multi plexer) Audio signal selection (Main)
IC203 Logic IC (multi plexer) Audio signal selection (Sub)
IC251 RDS decoder IC RDS signal processing and demodulation
IC301 Power IC Power amplifier for speaker output
IC501 Isolation amplifier IC Audio signal GND isolation (X14 source_MAIN)
IC502 Isolation amplifier IC Audio signal GND isolation (X14 source_SUB)
IC701 Isolation amplifier IC Audio signal GND isolation (TV-CH)
IC702 Logic IC (AND) NAVI remote controller data switching
IC723 Isolation amplifier IC Audio signal GND isolation (AV-IN)
IC802 Video switch Video signal output switching (for monitoring the unit)
IC803,804 Video switch Video signal output switching (AV-OUT)
IC805 Video switch Video signal detection SW
IC806 Video switch Video signal output switching (for monitoring the unit)
IC807 Video switch Video signal selection (R)
IC808 Video switch Video signal selection (G)
IC809 Video switch Video signal selection (B)
IC810 Video switch Video signal output switching (for monitoring the unit)
Q1 Transistor REVERSE detection circuit
Q2 Transistor PARKING detection circuit
Q3 Transistor ILLUMI detection circuit
Q4 Transistor BU detection circuit
Q6 Transistor BU detection circuit
Q7~10 Transistor P_CON output circuit
Q11,12 Transistor ANT_CON output circuit
Q13 Transistor EXT_CONT output circuit
Q14,15 Transistor RELAY control circuit
Q51 Transistor BU5V generation
Q52~54 Transistor BU5V circuit
Q61 Transistor V5V generation
Q62 Transistor V5V circuit
Q70 Transistor P-ON circuit
Q71 Transistor Audio8V and Tuner8V generation
Q72 Transistor Audio8V and Tuner8V circuit
Q81~85 Transistor RELAY control circuit
Q91~95 Transistor RELAY control circuit
Q101,102 Transistor RESET detection circuit
Q103 Transistor RESET detection circuit (TV)
Q104,105 Transistor MUTE circuit (RESET)
Q107 Transistor MUTE circuit (DVD)
Q251,252
Transistor On when AM (Tuner8V)
COMPONENTS DESCRIPTION

11
KVT-719DVD/729DVD
/729DVDY/739DVD
Ref. No. Application / Function Operation / Condition / Compatibility
Q351 Transistor Pre-OutMute Mute transistor (FL)
Q352 Transistor Pre-OutMute circuit (Front, Rear)
Q353 Transistor Pre-OutMute Mute transistor (FR)
Q354 Transistor Pre-OutMute Mute transistor (RL)
Q355 Transistor Pre-OutMute Mute transistor (RR)
Q356 Transistor Pre-OutMute Mute transistor (SUB L)
Q357 Transistor Pre-OutMute circuit (SUB)
Q358 Transistor Pre-OutMute Mute transistor (SUB R)
Q359 Transistor Pre-OutMute Mute transistor (AV-OUT L)
Q360 Transistor Pre-OutMute circuit (AV-OUT)
Q361 Transistor Pre-OutMute Mute transistor (AV-OUT R)
Q802~808 Transistor Synchronizing separator circuit
Q809 Transistor TV_MUTE circuit (R)
Q810 Transistor TV_MUTE circuit (G)
Q811 Transistor TV_MUTE circuit (B)
Q813 Transistor TV_MUTE circuit (R)
Q814 Transistor TV_MUTE circuit (G)
Q815 Transistor TV_MUTE circuit (B)
●VIDEO UNIT (X35-4710-10)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 Inverter control IC Control and drive of the inverter circuit for the back light
IC101 DC/DC converter IC
+12.5V power supply for VCOM amplifier (Gamma IC) and -12.0V/+18.5V power supply for LCD
IC102 Mono-multi Delay 5V power supply for DC/DC IC
IC103 NOT Reverse
IC301 Serial/parallel conversion Extension of µ-com port
IC302 AND Buffer to delay V.SYNC
IC303 PLL LPF LPF for PLL control (VT voltage control)
IC304 Timing controller IC Control of LCD module
IC401 Dimmer sensor Detection for auto-dimmer
Q1 Dimmer SW Turn on or off in response to the PWM control signal to dimmer the back light
Q2,3 Inverter driver Drive the inverter circuit
Q4 Switch SW to change the free run frequency for inverter control IC
Q5 5V constant voltage 5V power supply for inverter control IC
Q301 VCO For PLL oscillation
Q303 Buffer For PLL clock
Q501 Touch panel Y1 SW Y0 (X0) SW: On in response to Y (X) axis input and off in response to X (Y) axis input
Q502 Touch panel X1/Y0 SW
X1 SW: Turn on in response to sensing of the touch on the panel or X axis input and apply voltage
Q503 Touch panel Y1 SW Y1 SW: Turn on in response to Y axis input and apply voltage
COMPONENTS DESCRIPTION

12
KVT-719DVD/729DVD
/729DVDY/739DVD
●DIGITAL I/O UNIT (X88-2020-11)
Ref. No. Application / Function Operation / Condition / Compatibility
IC100 Fixed Current Limit
Power Distribution Switch Large current distribution switch for USB1
IC104 Exclusive OR Gate EP_SYNC (composite sync) output
IC105 Low Dropout Voltage
Linear Regulator SW3.3V →1.8V (for EP9307IRZ)
IC106 System-On-Chip Processor Media Processor
IC108 Inverter E_HSYNC Buffer
IC200 Triple Inverter Sub Clock Buffer
IC201 Octal Bus Transceiver Flash Memory data line switching (DA0~7)
IC202,203 SDRAM 256Mbit SDRAM for work memory
IC205 Octal Bus Transceiver Flash Memory data line switching (DA8~15)
IC207 iPod Authentication Coprocessor iPod Authentication
IC211 NOR Flash Memory 128Mbit Flash Memory for program data and graphic data
IC301 Stereo DAC Audio signal digital/analog converter
IC302 Color TV signal encoder Graphic signal digital/analog converter
IC305 Dual OP-Amp.(LPF) Stereo DAC Output LPF
IC309 On-Screen Display Controller On-Screen Display analog signal output
IC316 Triple Inverter Dot Clock(14.4MHz) Buffer
IC322 CPLD 2/3 frequency dividing and PAL thinning control (compression processing circuit)
IC332 Low Dropout Voltage Regulator A8V →A5V(for Stereo DAC and LPF)
IC336 Triple Schmitt Inverter VSY, HSY Buffer
IC337 Triple Schmitt Inverter CPV, STH Buffer
Q302 General Purpose Transistor OSD ROUT Current Amplifier
Q303 General Purpose Transistor OSD GOUT Current Amplifier
Q304 General Purpose Transistor OSD BOUT Current Amplifier
●DVD UNIT (X37-1120-03)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 One chip LSI for DVD player RF signal processing / Servo processing / Decoding processing / AV decoding processing
IC5 FLASH ROM To retain F/W for one chip LSI (Nonvolatile memory)
IC9 EEP ROM To retain data for one chip LSI (Nonvolatile memory)
IC10 Driver IC Fo coil / Tr coil / SP motor / SLD motor / LO-EJ motor drive
IC12 1ch video AMP +6dB amplifier with internal composite video output filter
IC15 Audio DAC DA converter for 2ch analogue audio output
IC21 2-output switching REG 5V →3.3V/1.2V
IC39 OP-AMP for Iop measurement For Iop measurement
IC42 Logic IC for port extension For port extension
IC49 Low voltage logic For S/PDIF signal amplitude conversion (3.3V →1.2V)
IC50 OP-AMP for audio LPF LPF for 2ch analogue audio output (Rch)
IC51 OP-AMP for audio LPF LPF for 3ch analogue audio output (Lch)
COMPONENTS DESCRIPTION

13
KVT-719DVD/729DVD
/729DVDY/739DVD
Ref. No. Application / Function Operation / Condition / Compatibility
IC54 SDRAM To retain data for one chip LSI (Nonvolatile memory)
IC55,56 Logic IC for port extension For port extension
IC57 3ch video amplifier With built-in filter +6dB amplifier for component/RGB video output
IC60 Power supply for 5.0V 8V →5V (Exclusively for audio DAC)
Q1 Transistor with internal resistor LO_MUTE control
Q2 Transistor with internal resistor For FG signal
Q3 Transistor with internal resistor For BMS
Q4 Transistor with internal resistor DRMUTE control
Q10 Front end transistor for APC Control of CD laser diode emission
Q11 Front end transistor for APC Control of DVD laser diode emission
Q12 Rear end transistor for APC Control of CD laser diode emission
Q13 Rear end transistor for APC Control of DVD laser diode emission
Q14 MOS-FET ON/OFF control of CD laser diode
Q15 MOS-FET ON/OFF control of DVD laser diode
Q20 MOS-FET for level shifter Level shifter for I2C clock
Q21 MOS-FET for level shifter Level shifter for I2C data
Q24 MOS-FET For Iop measurement
Q25 Transistor with internal resistor IFSEL control
Q27 Transistor with internal resistor HFM ON/OFF control
Q28 Transistor for APC For CD laser diode protection (Current limiter)
Q29 Transistor for APC For DVD laser diode protection (Current limiter)
COMPONENTS DESCRIPTION

14
KVT-719DVD/729DVD
/729DVDY/739DVD
●SYSTEM µ-COM: 703261YGC315A (X14: IC201)
Pin No. Pin Name I/O Application
Truth Value
Table
Processing Operation Description
1 AVREF0
2 AVSS
3 V_MUTE O For video mute H: ON, L: OFF
4 HSY_ADJ/HSY_ADJ O Free run adjustment HSY frequency control
4 HSY_ADJ/NC O (KOS)
5 AVREF1
6 DSI/SI O DSI control (KVT)
6 DSI/SI O SI control (DDX)
6 NC O (KOS)
7
CIR_BU_DET/CIR_BU_DET OWhen BU_DET has been detected, make the core
recognize the detection.
7 CIR_BU_DET/STATUS0 O Cope with the special only when the mechanism
endurance jig (KVT).
8 FLMD0 I Used when writing µ-com
9 VDD
10 REGC
11 VSS
12 X1 4.953MHz
13 X2
14 RESET
15 XT1 32.768kHz
16 XT2
17
PANEL_DET/PANEL_DET I Front panel mounting/dismounting detection (KVT/KOS) .H: Panel dismounted
L: Panel mounted
17 PANEL_DET/NC O (DDX)
18 VSY (VD) I V-SYNC input
19 BU_DET I Backup detection H: Reduced voltage detection
20
O SD_MODE/OSD_MODE O Output when the screen mode is cinema/zoom Refer to “NTSC_PAL”
20 OSD_MODE/NC O (KOS)
21 ACC_DET I ACC detection H: ACC reduced voltage detection
22 γ_CS O Communication CS with Chroma γ-IC
23 γ_DATA O Communication data with Chroma γ-IC
24 γ_CLK O Communication clock with Chroma γ-IC
25 CIR_MDATA O Communication with media processor
26 CIR_SDATA I Communication with media processor
27 CIR_INI O Media processor initial Normally fixed to “L” and output “H”
only in the case of reset recovery
28 CIR_RESET O Reset of media processor
MICROCOMPUTER’S TERMINAL DESCRIPTION

15
KVT-719DVD/729DVD
/729DVDY/739DVD
Pin No. Pin Name I/O Application
Truth Value
Table
Processing Operation Description
29 CIR_STB I Standby of media processor
30 CIR_MREQ O Request to media processor
31 CIR_SREQ I Request from media processor
32 CIR_CON O Permission to operate media processor
33 EVSS
34 EVDD
35 SDA I/O Communication data with E2P
36 SCL O Communication clock with E2P
37 SIPA_CLK1/SIPA_CLK1 O Serial/parallel IC communication clock (KVT/DDX)
37 SIPA_CLK1/NC O (KOS)
38 SIPA_DATA1/PLL_EN O Enable PLL_IC (KOS)
38
SIPA_DATA1/SIPA_DATA1 O Serial/parallel IC communication data (KVT/DDX)
39 PGOOD I DC-DC_IC error detection
40 NC O Cope with the special only when the mechanism
endurance jig (KVT)
40 STATUS1/SYNC_DET I
Detection of composite signal in the monitor output (KOS)
40 STATUS1/NC O
41 DISC_DET/DISC_DET I Detection of disc (KVT/DDX) L: Detected (Disc is found)
41 DISC_DET/NC O (KOS)
42
DVD_RESET/DVD_RESET O DVD mechanism resetting (KVT/DDX)
42
DVD_RESET/MON_SYS_ON O Monitor µ-com ON/OFF control (KOS)
43 DVD_SDA/DVD_SDA I/O Communication data with DVD mechanism (KVT/DDX)
43
DVD_SDA/MON_S_DATA O Communication data with monitor µ-com (KOS)
44 DVD_SCL/DVD_SCL O
Communication clock with DVD mechanism (KVT/DDX)
44 DVD_SCL/MON_M_DATA I Communication with monitor µ-com (KOS)
45 INV_PWM/INV_PWM O Inverter frequency control (KVT/DDX) PWM output
45 INV_PWM/MON_RESET O Reset of monitor µ-com (KOS)
46 POWER_START O DC-DC_IC soft start L: Start, H: Stop
47 POWER_PWM O Oscillation frequency control of DC-DC_IC PWM output
48 PON O Power ON/OFF control H: ON, L: OFF
49 PWM/REMO_PWM O Convert the touch on the screen into the remote
controller code (KOS) PWM output
49 PWM/PWM O LCD brightness control (KVT/DDX) PWM output
50 HSY (HD) I H-SYNC input Count H
51 MCNT/PLL_MDATA O Data output to PLL_IC (KOS/X88FCT special)
51 MCNT/MCNT O P-MECHA power supply voltage switching (KVT) H: 7.5V, L: 5V (KVT)
51 MCNT/MCNT O T-MECHA power supply voltage switching (DDX) H: 8V, L: 5V (DDX)
52 INV_SW/PLL_CLK O
Communication clock with PLL_IC (KOS/X88FCT special)
MICROCOMPUTER’S TERMINAL DESCRIPTION

16
KVT-719DVD/729DVD
/729DVDY/739DVD
Pin No. Pin Name I/O Application
Truth Value
Table
Processing Operation Description
52 INV_SW/INV_SW O Inverter free run frequency switching (KVT/DDX)
53 SYS_SDATA I Data input from AUDIO µ-com
54 SYS_MDATA O Data output to AUDIO µ-com
55 SYS_CLK O Communication clock with AUDIO µ-com
56 SYS_SREQ I Request from AUDIO µ-com
57 TYPE3/STATUS2 O Cope with the special only when the mechanism
endurance jig (KVT)
57 TYPE3 O Setup of destination q
58 SRC/MON_POWER I Monitor power ON/OFF input (KOS)
58 SRC/SRC I Source key (KVT/DDX)
59 SYS_MREQ O Request to AUDIO µ-com
60 SYS_ON O AUDIO µ-com ON/OFF control
61 OPEN_CLOSE/OPEN_CLOSE
I OPEN/CLOSE key on P-MECHA (KVT)
61
OPEN_CLOSE/OPEN_CLOSE I Eject key (DDX)
61 OPEN_CLOSE/NC O (KOS)
62 TYPE1 I Setup of destination q
63 TYPE2 I Setup of destination q
64 NTSC_PAL/NTSC_PAL I NTSC/PAL determination input H: NTSC, L: PAL
65 TMOTOR_M/PLL_EN O Enable PLL_IC (X88FCT jig special)
65
TMOTOR_M/TMOTOR_M O Panel mechanism tilt control (KVT)
65 TMOTOR_M/TILT_M- O Tilt mechanism tilt control (DDX)
65 TMOTOR_M/NC O (KOS)
66 TMOTOR_P/PMOTOR_P O Panel mechanism tilt control (KVT)
66 TMOTOR_P/TILT_M+ O Tilt mechanism tilt control (DDX)
66 TMOTOR_P/NC O (KOS)
67 SMOTOR_M/SD_DET1 I SD card detection (DDX)
67
SMOTOR_M/SMOTOR_M O Panel mechanism slide control (KVT)
67 SMOTOR_M/NC O (KOS)
68 SMOTOR_P/SD_DET2 I SD card detection (DDX)
68 SMOTOR_P/SMOTOR_P O Panel mechanism slide control (KVT)
68
SMOTOR_P/SP_ACC_DET ISpeaker input detection →“H” when the speaker input
is found (KOS) L: Speaker input is not found
69 BVSS
70 BVDD
71 WRT_E2P I Used when writing E2P
72 MINI_CLK/MINI_CLK O Mini liquid crystal control clock (Mid at KVT)
72
MINI_CLK/RGBOUT_MUTE OMute RGB output when the connected monitor is other
than the special monitor (KOS)
72 MINI_CLK/NC O Lo/DDX at KVT
MICROCOMPUTER’S TERMINAL DESCRIPTION

17
KVT-719DVD/729DVD
/729DVDY/739DVD
Pin No. Pin Name I/O Application
Truth Value
Table
Processing Operation Description
73 ILL_R/ILL_R O Key illumi red ON/OFF (Lo at KVT) H: ON, L: OFF
73 ILL_R/KEY_ILL O Key illumination ON/OFF (DDX) H: ON, L: OFF
73 ILL_R/MINI_DATA O Mini liquid crystal control data (Mid at KVT)
73 ILL_R/NC O KOS
74 ILL_G/JIG_EJ I Can operate without tilt mechanism (DDX) L: Normal
74 ILL_G/ILL_G O Key illumi green ON/OFF (Lo at KVT) H: ON, L: OFF
74 ILL_G/MINI_CS O Mini liquid crystal control chip select (Mid at KVT)
74 ILL_G/NC O KOS
75 FIELD_DET/FIELD_DET I Determination of video signal field (KVT/DDX)
75 FIELD_DET/SYNC_SEL O
Switching of composite signal in the monitor output (KOS)
76 FLMD1 I Used when writing µ-com
77 ENABLE/ENABLE O Backlight ON/OFF (KVT/DDX) H: ON, L: OFF
77 ENABLE/REMO_SEL O Remote controller output switching (KOS)
H: DVD player operation with the
accessory remote controller
L: DVD player operation with the
other controller than accessory
remote controller
78 Y0/OEM_SW O Is the connected monitor the special (dedicated)
monitor or not? (KOS)
H: Special (Dedicated)
L: OEM (Default)
78 Y0/Y0 O Touch panel control (KVT/DDX)
79 X1/γ_VIN_SW2 O Chroma γCOMP/RGB input switching (KOS)
79 X1/X1 O Touch panel control (KVT/DDX)
80 X0/γ_SYNC_SW2 O Chroma γSYNC input switching (KOS)
80 X0/X0 O Touch panel control (KVT/DDX)
81 SW_A/SW_A I Detection of panel mechanism (KVT)
81 SW_A/HPOS1 O Display “H” position adjustment (DDX)
81 SW_A/RGB_SW3 O RGB switching control (KOS)
82 SW_B/SW_B I Detection of panel mechanism (KVT)
82 SW_B/HPOS2 O Display “H” position adjustment (DDX)
82 SW_B/VIN_SW4 O RGB switching control (KOS)
83 SW_C/SW_C I Detection of panel mechanism (KVT)
83 SW_C/HPOS3 O Display “H” position adjustment (DDX)
83 SW_C/VIN_SW5 O COMP switching control (KOS)
84 ZACT_SW/ZACT_SW I Detection of panel mechanism (KVT)
84 ZACT_SW/HPOS4 O Display “H” position adjustment (DDX)
84
ZACT_SW/COMP_MUTE O COMP mute control (KOS) H: When OEM_SW is “L” and at
full graphic
85 SIPA_CLK2/SIPA_CLD2 O Serial/parallel IC communication clock (KVT)
85 SIPA_CLK2/MODE1 O Screen mode switching (DDX)
85 SIPA_CLK2/RGB_MUTE O RGB mute control (KOS)
MICROCOMPUTER’S TERMINAL DESCRIPTION

18
KVT-719DVD/729DVD
/729DVDY/739DVD
Pin No. Pin Name I/O Application
Truth Value
Table
Processing Operation Description
86 SIPA_DATA2/AOUT_SW5 O Audio out switching (KOS)
86
SIPA_DATA2/SIPA_DATA2 O Serial/parallel IC communication data (KVT)
86 SIPA_DATA2/MODE2 O Screen mode switching (DDX)
87 LED_SW/AOUT_SW6 O Audio out switching (KOS)
87 LED_SW/LED_SW O
LED goes on or off in conjunction with OPEN/CLOSE (KVT) H: ON, L: OFF
87 LED_SW/MODE3 O Screen mode switching (DDX)
88 MIRROR/EJECT I Eject key (KVT)
88 MIRROR/MIRROR O Reverse control of back monitor mirror (DDX)
88 MIRROR/NC O (KOS)
89 VCOM/VCOM I For γcurve automatic adjustment (KVT/DDX)
89 VCOM/NC O (KOS)
90 VR/VR I
For γcurve and PHASE/TINT automatic adjustment
(KVT/DDX)
For PHASE/TINT automatic adjustment (KOS)
91 VG/VG I For γautomatic adjustment (KVT/DDX)
For RGB level automatic adjustment (KOS)
92 VB/VB I
For γcurve and PHASE/TINT automatic adjustment
(KVT/DDX)
For PHASE/TINT automatic adjustment (KOS)
93 KEY1/KEY1 I (KVT)
93 KEY1/KEY3 I (DDX)
93 KEY1/NC O (KOS)
94 KEY2/KEY2 I (KVT)
94 KEY2/NT_PAL O NTSC/PAL output for X35 (DDX/KOS) NTSC: L, PAL: H
95 R_SENS/R_SENS I Detection of panel mechanism tilt (KVT)
95 R_SENS/R_SENS I Detection of tilt mechanism tilt (DDX)
95 R_SENS/NC O (KOS)
96 ZACT_CONT/LEN_ON O Disc LED ON/OFF (Mid at DDX) H: ON, L: OFF
96
ZACT_CONT/ZACT_CONT I Panel mechanism slide position detection (KVT)
96 ZACT_CONT/NC O Lo/KOS at DDX
97 AUTO_DIM/AUTO_DIM I Auto dimmer input (KVT)
97 AUTO_DIM/NC O DDX/KOS
98 YDATA/YDATA I Touch data input (KVT/DDX)
98 YDATA/NC O (KOS)
99 XDATA/XDATA I Touch data input (KVT/DDX)
99 XDATA/NC O (KOS)
100 TYPE0 I Setup of destination q
MICROCOMPUTER’S TERMINAL DESCRIPTION

19
KVT-719DVD/729DVD
/729DVDY/739DVD
Truth Value Table
qKVT/DDX/KOS Setup of destination
MODEL Category Destination TYPE3 TYPE2 TYPE1 TYPE0
Lo
KVT
K000∗
E000∗
M0 0 0 ∗
V/X 0 0 0 ∗
R000∗
DDX
K001∗
E001∗
M0 0 1 ∗
V/X 0 01∗
R001∗
KOS
K010∗
E010∗
M0 1 0 ∗
V/X 0 1 0 ∗
R010∗
AVN
K011∗
E011∗
M0 1 1 ∗
V/X 0 1 1 ∗
R011∗
Mid
KVT
K100∗
E100∗
M100∗
V/X 100∗
R100∗
DDX
K101∗
E101∗
M1 0 1 ∗
V/X 1 0 1 ∗
R101∗
KOS
K110∗
E110∗
M1 1 0 ∗
V/X 1 1 0 ∗
R110∗
TYPE0 is AD input. Refer to the next table (TYPE0 Setup Voltage) for the “∗”.
TYPE0 Setup Voltage
Destination µ-com setup value
min Mid point voltage max
K0.00 0.00 0.41
E 0.42 0.83 1.23
M 1.24 1.65 2.06
V/X 2.07 2.48 2.88
R 2.89 3.30
MICROCOMPUTER’S TERMINAL DESCRIPTION

20
KVT-719DVD/729DVD
/729DVDY/739DVD
NTSC_PAL Setup
Audio γT/C
VSYNC_DET D8 D15 D9
0: NTSC, 1:PAL SYNC_SW NT_PAL
NTSC
GRA - 1
0
1 Hi: IN2
Lo
DVD - 1 1 Lo: IN1
VD Yes 0 - Lo: IN1
None None 0 - Hi: IN2
iPod - 1 0 Lo: IN1
None - 1 0 Hi: IN2
TV - 0 - Lo: IN1
NAVI - 1 1 Lo: IN1
PAL
DVD - 1 1 Lo: IN1
Hi
VD Yes 0 - Lo: IN1
None None 0 - Hi: IN2
iPod - 1 1 Lo: IN1
None - 1 1 Hi: IN2
TV - 0 - Lo: IN1
OSD_MODE (Thinning measure between CPLD OFF/ON control)
NTSC PAL (NT_PAL: Hi)
FULL
Lo
Hi
NORMAL
JUST
Lo
ZOOM
CINEMA (ZOOM2)
MICROCOMPUTER’S TERMINAL DESCRIPTION