Kenwood KVT-617DVD Service Manual page 26

BD
KVT-617DVD/647DVD
1
P ON+5.0V
P ON+5.0V
SW+18.5V
CLOSE KEY
LED GND
2
P ON+3.3V
NTSC PAL
3
P ON+3.3V
X14-
4
CN850
AUTO DIM
1/4
B
5
SW+5.0V
6
7
26
X35-4480-10 (1/3)
BE
(X35-4480-10) (A/3)
CN301
TP321B
1 PON5V
2
NC 3
TP322B
V GND 4
V GND 5
TP323B
6
TP324B
D GND 7
TP361B
OPEN/
8 8
TP362B
NC 9
TP363B
T/C VD 10
TP364B
11
TP365B
BRINK 12 12
NC 13
TP366B
PLL CLK 14
TP367B
LED G 15 15
TP368B
LED R 16 16
NC 17
TP325A TP325B
18 +3.3V
NC 19
V GND 20
VB 21 VB
VG 22 VG
VR 23 VR
V GND 24
TP304A TP304B
T/C HD 25 22
V GND 26
TP326B
27 19
TP327B
PLL ON 28
TP328B
POLS 29 13
TP329B
MIRROR 30 18
TP308B
VSY 31 11
TP307B
HSY 32 9
TP306B
BLK 33 8
TP330B
MODE3 34 7
TP331B
MODE2 35 6
TP332B
MODE1 36 5
TP333B
HPOS4 37 4
TP334B
HPOS3 38 3
TP335B
W304
HPOS2 39 2
TP336B
HPOS1 40 1
NC 41
TP305
VCOM 42
NC 43
44
TP370B
45 45
TP371B
KEY1 46 46
TP372B
XDATA 47 47
TP373B
YDATA 48 48
TP374B
X0 49 49
TP375B
X1 50 50
TP376B
Y0 51 51
NC 52
TP378B
PWM 53 53
TP379B
ENABLE 54 54
TP380B
SW-D 55 55
NC 56
TP381B
BLGND 57
BLGND 58
NC 59
TP383B
BL+8.5V 60
BL+8.5V 61
NC 62
D GND 63
TP385B
PH DET 64 64
TP386B
65
TP387B
BL DET 66 66
TP388B
R SENS 67 67
NC 68
RI M- 69 69
3.3V
TP390B
RI M- 70
TP391B
RI M+ 71 71
1
RI M+ 72
EX M- 73 73 2
TP394B
EX M- 74
TP395B
3
EX M+ 75
75
EX M+ 76
NC 77
TP397B
SW-A 78 78
TP398B
SW-B 79 79
TP399B
SW-C 80 80
PON3.3V
BL8.5V
1 2 3 4 5 6 7
CN303
BF
IC101
F100
0.63A
5.0V 6
VIN
0-19.5V 7
SW2
R106 10K
8
L103 SHDN
D102
4.7uH
18.7V 9
VO2
L106
10
VON
10uH
TP303B
TP303A
DC/DC CONV.
L302
W303
10uH
W301
3ST BUFF
IC300
0-3.3V 0V
5 4
A2 GND
0-3.3V 6 3 0-3.3V
Y1 Y2
3.3V 7 2 0-3.3V
G2 A1
3.3V 1 0V
R300
8
G1
VCC
10K
Q300 22K
C300
22K
0.01
L303
10uH
+3.3V
CP301 1K
1
2
3
4
CP302 1K
5
6
7
CP303 100
TP306A
8
R385 0
TP307A
9
TP308A
11
R373 560
13
R357 0
R374 560
18
R309 0
19
C311 0.01
22
3.3V
IC302
5
VCC
B
TP356A
Y 4
A
R308
0-3.3V
620
GND
C310
560P
C333 0.1
C342 10P
8 9 10 11 12 13 14 15 16 17 18 19 1
CN305
BG
L105
L101
D103 D104
10uH
3.3uH
L102 L104
D101
3.3uH 10uH
0-13.0V
5 0V
GND
4
SW1
C115
1.5V 0.1
3
CT
5.0V
2 1.3V
FB2
1 1.3V
FB1
18.6V
PON5V-1
C318
C336
0.1 0.1
R324
4.7K
D302
R321
D303
R325
4.7K
4.7K
Q302 Q303
R19 R21
100 0
0or3.3V 1
HPOS1
0or3.3V 2
HPOS2
0or3.3V 3
HPOS3
0or3.3V 4
HPOS4
0or3.3V 5
MODE1
0or3.3V 6
MODE2
0or3.3V 7
MODE3
IC301
0-3.3V 8
TIMING CONTROLLER
NBLK
0-3.3V 9
NDSH
0V 10
VSS1
11
NDSV
0-3.3V
12
NCLP
0-3.3V 13
POLS
0-3.3V 14
0V
POLC
0V 0-3.3V
0V 0-5.0V
15
COMPS
3.3V 16
VDD1
R371
0
17
C312
0.01
2 3 4
to JIG
BH
TP301A TP301B
W216
TP302A TP302B
W217
R236
-0.6
2.2K
-0.6
-1.6
VR203
1
10K
R327
68K
LPF
IC303
C335
1.6-2.0V
0.1
5.0V
C3
100
Q301
C337
C3
0.01
10
V
3.3V
VS
0-3.3V 3.3V 1.6V
L
S
VD
OS
SC
VS
SI
XC
TS
TS
TS
TS
SVS
XC
VD
0-3.3V