Block Diagram; Components Description - Kenwood SVT-M700 Service Manual

SVT-M700
V IN
J2
(X14- )
J3
IC202
to STC-700
NAVI SYNC
NR
NG
NB
V GND
to X35
CHROMA
M REQ C
DECODER
M REQ H
to
M DATA
MI-COM
M CLK
M CON
RST
MUTE
RX
TX
IC302
RST
RST
J4
to W02
to
REMO
ILL MI-COM
J1
LED. GND
to BAT
BU
ILL-CONT
ILL-CONT
PARK
GND
B.U. DET
PARK
(W02- )
ELECTRIC CIRCUIT MODULE
VIDEO CONTROL UNIT (X14-9172-70)
Ref.No. Component Name
IC2 FA7611CE
IC202 BA7649F
70F3033AGC1Q6
IC301
S-80842CNNB
IC302
S-80837CNNB
IC304 TA78DL05F
Q1 2SC4081
Q2 DTA124EUA
Q3 DTB123YK
Q4 DTA124EUA
Q5 2SC4081
Q6 DTC124EUA
Q7 2SC4979
Q8 2SA2013
Q9 2SC4081
Q10 2SA1576A
2

BLOCK DIAGRAM

TOUCH PANEL SWITCH ASSY
(X35- ) (A/2)
MI-COM
COMP VIDEO
COMP VIDEO
to X35
Y/C
VI1
VI2
VI3
MI-COM
IC301
MI-COM MI-COM
20MHz
MI-COM
SOURCE
(X35- ) (B/2)

COMPONENTS DESCRIPTION

Application/Function
AVR control IC
Video SW
System MI-COM.
Reset IC
AVR IC (BU5V AVR)
BU detection SW
Parking detection SW
SW5V SW
Flyback SW
Flyback driver
DC/DC chopper
DC/DC chopper driver
from X14
X-DT
Y0
Y-DT
Y0
IC701
Y
C. TRAP
CHROMA DECODER
C
from IC400
IC700
IC500
EEP ROM
RGBI
RGBI
OSD
VSY
HSY
IC402,403
BUFF
IC401
IC400
SYNC
HD
SEPARATION
VD
to IC701
NAVI DISP VOL DOWN
Operation/Condition/Compatibility
Voltage control of the flyback circuit and the step down type switching
regulator for LED9V and BL8.5V power lines
Video in for the adjustment and NAVI signal selector
Flash MI-COM.
Mask MI-COM.
For Flash MI-COM. : When BU5V line voltage is less than 4.2V, IC outputs Lo.
For Mask MI-COM. : When BU5V line voltage is less than 3.7V, IC outputs Lo.
While BACKUP is applied, AVR outputs +5V.
While BACKUP is applied, a base goes Hi, and Q1 is turned on.
When momentary power down has detected, a base goes Lo, and Q1 is turned
off.
When the PRK line goes Lo, Q2 is turned on.
When a base goes Lo, Q3 is turned on, and BU5V power line is supplied to
the microprocessor peripheral circuits and the internal power supply.
When Q6's base goes Hi, Q4 and Q5 are turned on, and the fly back circuit is
working.
For the flyback trans driver
For LED9V power line and BL8.5V power line driver
For Q8 driver
RGB
NR
NG
NB
IC301,Q302,303
VCOM DRIVER
V COM
+13V/-16V
IC200
TIMING
CONTROL IC
+5.0V
IC501
BUFF
VSY
SYNI
Q200,
IC202 IC201
PLL
FLIP FLOP
+5.0
CLK +5.0V
Q600-604
INVERTER
BRT
MI-COM
BL +9.0V
VOL UP POWER
RESET
RGB
LCD ASSY
VCOM
6.5INCH TFT
LCD
SPOI
MOD1
MOD2
VRSP
SCLS
CLDS
PIOCT
+13.0V
+5.3V
-9.6V
-11.1V
CFL