Video Unit - Kenwood KVT-915DVD Service Manual

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VIDEO UNIT

VIDEO UNIT (X35-4280-01)
CN301
P ON+5.0V 1
P ON+5.0V 2
NC 3
V GND 4
V GND 5
SW+18.5V 6
7
D GND
OPEN/CLOSE 8
VOL- 9
VOL+ 10
LED GND 11
BRINK 12
NC 13
LED+8.5V(B) 14
LED+8.5V(G) 15
16
LED+8.5V(R)
17
NC
P ON+3.3V 18
NC 19
V GND 20
VB 21
VG 22
VR 23
V GND 24
CSYNC 25
V GND 26
NTSC/PAL 27
POLC 28
POLS 29
NC 30
VSY 31
32
HSY
BLK 33
MODE3 34
MODE2 35
MODE1 36
HPOS4 37
HPOS3 38
HPOS2 39
TE
HPOS1 L 13942296513 40
41
NC
VCOM 42
NC 43
P ON+5.0V 44
AUTO DIM 45
KEY1 46
XDATA 47
YDATA 48
X0 49
50
X1
Y0 51
BL DET 52
PWM 53
ENABLE 54
SW-D 55
NC 56
BL GND 57
BL GND 58
NC 59
BL+8.5V 60
BL+8.5V 61
NC 62
D GND 63
PH DET 64
SW+5.0V 65
REF+5.0V 66
R SENS 67
NC 68
RI M- 69
RI M- 70
RI M+ 71
RI M+ 72
EX M- 73
EX M- 74
EX M+ 75
EX M+ 76
77
NC
SW-A 78
SW-B 79
SW-C 80
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4
BLOCK DIAGRAM
VR/VG/VB
PON+5.0V
PON+3.3V
VGND
IC101
OPEN
PON-12.0V
PON+18.5V
DC-DC IC
LT1947
PON+12.5V
IC203
V.COM
VGND
IC301
PON+3.3V
IC302
V.SYNC
TC7SET08FU
TIMMING
H.SYNC
CONTROLLER
TC7W14FU
TC200G02AF-0104
IC304
POLS/POLC/HSY/VSY/BLK
MODE1/2/3/HPOS1/2/3/4/NTSC PAL
OPEN
CN303
1 SW-D
SW-C
2
3 SW-B
4 SW-A
5 NC
6 EX M+
7 EX M+
8 EX M-
7 INCH
EX M-
9
INDASH MECHA
10 RI M+
RI M+
11
12 RI M-
13 RI M-
14 NC
15 R SENS
16 REF+5.0V
17 SW+5.0V
PH DET
18
19 NC
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2 9
8
COM AMP
TA75W558FU
USPD/CPV/HDIR/CX/
STV1/STV2/STH1/STH2/
NGOE1/NGOE2/
NGOE3/CPH1
TOUCH PANEL
S79-0827-05
PDOS/OSCI
X0/X1/
Y0/Y1
PLL & LPF
NJM2107F
IC303
Q Q
TOUCH PANEL
3 6 7 1 3
SWITCH
CIRCUIT
PON+5.0V
XDATA/YDATA
X0/X1/Y0
AUTO DIM/
KEY1
PWM/ENABLE
D.GND
LED GND
BL+8.5V
BL GND
LED+8.5V(B)
LED+8.5V(R)/LED+8.5V(G)
LED GND
D.GND
OPEN/CLOSE/VOL+/VOL-
BRINK
.
9 4 2 8
CN503
30 NC
PON-12.0V
29 VGL-12.0V
28 NC
VGND
27 VSS
STV1
26 STV1
USPD
25 U/D(UPSD)
CPV
24
CPV
NGOE3
23 OE3(NGOE3)
NGOE2
22 OE2(NGOE2)
NGOE1
21 OE1(NGOE1)
STV2
20 STV2
PON+3.3V
19 VDD1+3.3V
PON+5.0V
18 VDD2+5.0V
17 NC
PON+18.5V
16 VGH+18.5V
15
NC
V.COM
14 VCOM
13 VSS
12 VSS
CPH1
11 CPH(CPH1)
10 VSS
CX
9 CX
HDIR
8 L/R(HDIR)
STH1
7 STH1
6 VSS
VB
5 VB
VG
4 VG
VR
3 VR
STH2
2 STH2
1 NC
1 5 0 5 8 2 9 9 4
IC401
AUTO DIMMER
SW PCB
(B/3)
SW PCB
(C/3)
m
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9 9
7 INCH
LCD
CFL
BACK LIGHT
2 8 9 9
INVERTER