Kenwood KVT-915DVD Service Manual page 57

CH
QQ
3 7 63 1515 0
VCOM
IC203
R236
2.2K
5 4
BIN+ VEE
6 3
BIN- AIN+
7 2
BOUT AIN-
8 1
C234
VCC AOUT
56
R235
9.1K
VR203
FLICKER
3
R348
3.6K
TE
L 13942296513
48
VSS4
R333
0
47
LPFI
46
C324
SPL
0.01
45
VDD4
44
OSCI
TP317A
43
SCK
42
VSS3
R334
0
41
SIZE
40
XCKI
39
TST4
38
TST3
37
TST2
36
TST1
35
D314
SVSEP
R335
0
34
XCKE
33
VDD3
C325
0.01
www
.
4 3
TEST POINT
CI
Q201-203
VCOM DRIVER
7
8
9
10
Q201
Q202
11
Q601
22K
12
Q203
14
15
16
TP316A
TP316B
TP337B
CN302
W354
1 VGL
2 NC
TP339B
3 VSS
4 4 STV1
TP340B
5 5 U/D
TP341B
6 6 CPV
TP342B
7 7 OE3
TP343B
8 8 OE2
TP344B
9 9 OE1
TP345B
10 10 STV2
W310
TP346B
11 VDD1
W355
TP347B
12 VDD2
TP348B
13 NC
W356
14 VGH
15 NC
16 VCOM
TP338B TP338A
17 VSS
18 VSS
TP349B
19 19 CPH
20 VSS
TP350B
21 21 CX
TP351B
22 22 L/R
TP352B
23 23 STH1
TP315B
24 VSS
TP315A
VB 25 VB
TP314A TP314B
VG 26 VG
TP313A TP313B
VR 27 VR
TP353B
28 28 STH2
29 NC
30 LED+8.0V
31 OPEN
TP354B
32 NC
33 33
PON+5V
34 34 AUTO DIM
35 35 KEY1
36 36 XDATA
37 37 YDATA
38 38 X0
39 39 X1
40 40 Y0
41 DGND
42 LED GND
43 43 BL DET
44 44 PWM
45 45 ENABLE
46 46 BLGND
47 BLGND
48 NC
49 49 BL+8.5V
50 BL+8.5V
x ao
y
i
2 1 19 18 17 16 15 14 13 12 11 10 9
CN305
CJ
8
CN304
1 D GND
OPEN/CLOSE
2
KEY
3 VOL-
4 VOL+
5 LED GND
R652
6 TV DVD/BRINK
470
7 NC
22K
8 LED(BLUE)
W358
9
TV DVD/LED+8.5V(G)
W357
10
TV DVD/LED+8.5V(R)
Q Q
3 6 7 1 3
u163
.
8 7 6 5 4 3 2 1
CN303
CK
KVT-915DVD,925DVD,935DVD
KVT-945DVD,965DVD
2 9 9 4 2 8
(X35- ) (B/3)
CN503
TP30B
CN502
30 NC
VGL 50 29 VGL
NC 49 28 NC
VSS 48 27 VSS
STV1 47 26 STV1
U/D 46 25 U/D
CPV 45 24 CPV
OE3 44 23 OE3
OE2 43 22 OE2
OE1 42 21 OE1
STV2 41 20 STV2
C427 2.2
TP29B
VDD1 40 19 VDD1
C428 10
TP28B
VDD2 18 VDD2
39
C426 1
TP27B
NC 38 17 NC
VGH 37 16 VGH
NC 36 15 NC
VCOM 35 14 VCOM
VSS 34 13 VSS
VSS 33 12 VSS
CPH 32 11 CPH
VSS 31 10 VSS
CX 30 9 CX
L/R 29 8 L/R
STH1 28 7 STH1
TP26B
VSS 27 6 VSS
TP40B
VB 26 5 VB
TP41B
VG 25 4 VG
TP42B
VR 24 3 VR
STH2 23 2 STH2
NC 22 1 NC
TP25B
LED+8.5V 21
TP24B
LED+8.5V 20
NC 19
TP23B
PON+5V 18
TP22B TP22A
AUTO DIM 17
TP21B
KEY1 16
1 5 0 5 8 2 9 9 4
TP1B
XDATA 15
TP2B
YDATA 14
TP3B
X0 13
TP4B
X1 12
TP5B
Y0 11
TP20B
DGND 10
TP19B
LED GND 9
BL DET 8
D9
PWM 7
TP16B
ENABLE 6
BLGND 5
BLGND 4
TP17B
NC 3
BL+8.5V 2
BL+8.5V 1
TP17A
TP15B
F1
1.5A
Q5
5V
AVR
R7
22
Q1
m
DIMMER SW
TP10B
D3
co
R5
15K
Q1
X35-4280-01 (2/3)
CL
9 9
(X35- ) (C/3)
CN601
DGND 1
OPEN/CLOSE 2
VOL- 3
VOL+ 4
LED GND 5
TV DVD/BRINK 6
NC 7
R
LED(BLUE,NC) 8
TV DVD/LED(GREEN)
9
R
10
TV DVD/LED(RED)
S401 S40
DVD
R441
680
SRC V.SE
R456
330
R453
R455
680
R454
330 R451
R401 R402 R40
0 4.3K 9.1
2 8 9 9
IC401
DIMMER SEN
IC401
L401
10uH
3
VCC OU
4
GND2 GND
L501
10uH
Q501
22K
22K
Q5
R3
INVERTER
CONTROL
22
IC1
C11 R13
2.2 22
1 20
CTIMR NDRB
2
C7
OVP
0.047
19
3
PDRA
ENA
C8
C13
18 220P
0.47
4
CT
SST
R6
17
C9
5
RT
VDDA
62K
2.2
16
6
PGND
GNDA
15
LCT
7 14
REF DIM
8 13
C15
TP8 RT1 LPWM
0.047
9 12
FB PDRC
C16 R16
10 11
CMP NDRD
0.018 22
C
R9 240K 0
R15 51K
57