Kenwood LZ-702W Service Manual page 27

Z
C31
R65 680P C30
68K R64 0.1
1M
IC4
R43
8
68K 1.8V 5.0V
1 5
IN+ V+
6
0V 2
R45
V-
15K
1.8V 3 4 1.9V
IN- OUT
PLL LPF
R75
D4
R38
0
4.7K
C24
0.1
C14
10
C11
1000P
C9
0.1
8
C8
6
1
C7
1000P
C4
2.2
8
6
6
12
2
TC3.3V
IC1
3.3V
5
3.3V 1
VCC
R17
100 0V 2
4 0V
0V 3
GND
TP5
V.SYNC DELAY BUFFER
SW5V
DIMMER/
VCOM SW
IC304
Q302
V
8 5.0V
DIM SENS/
VCC
1
VCOM IN
2.4V
SW
7 0.8V
2
INH
R309 10K
6 0V
3
Q302
VEE
R307
4 5
GND A
5.0V 100
5V 3.3V
IC402
3.3V 4 3 0V
GND
2 5.0V
1 5.0V
3.3V 5
VCC
REMOTE
SENSOR
0V
IC400
5.0V 3 4
VCC GND
1 2
5.0V
OUT GND
1
3
AA
14
C110
22u16
7
+
Q103
R118
VB
1K
R121
4.7K
R147 3K R146
14
10K
Q104
R124
VG
50
1K
R132
4.7K
R151 3K R150
10K
Q106
R137
VR
1K
R143
4.7K
R154 3K R153
L103
10uH
10K
FREE-
RUNNING
ADJ
R68
C27
1000P
5.1K
L5
C28
D2
6.8uH
100P
TC3.3V
19
18
19 18
R406 C402 R404 R403
50
1K 0.01 680 22
D401
TP401
R408 C404 R407
51
1K 0.01 680
D402
TP402
6
R413 C405 R412
1K 0.01 680
D403
TP403
S402
R416 C407 R415
52
1K 0.01 680
D404
TP404
R418 C408 R417
54
1K 0.01 680
D405
TP405
R420 C409 R419
53
1K 0.01 680
D406
TP406
D408
R421
1K
RST
TP407
D407
1
13
AB
C2
PIN MO 1 MO 2
15
10u16
FULL L L
+
NORMAL H L
C146 C5
WIDE L H
1 1000P
ZOOM H H
B
CINEMA L L
GAMMA
B-SIGNAL
BUFFER
R1
1
88
C145
0 R4
2
1
87
G
R5 0
3
GAMMA 86
0 R8
4
G-SIGNAL
85
BUFFER
R9 0
5
84
0 R10 6
83
R23 0 7
C144
82
1
0
8
R
8
C39 100P
GAMMA
R-SIGNAL
TP1
R21 9
BUFFER
8 HSY
TP3 220 10
TP2 R22
11
VSY
220
TP4
TP33
R74
12
NCLP
220
C40
13
100P
R24
TP6 14
14
5
560 R26
15
1K
16
3.3V
Q1
78
VCO
81
TP32
8
14
5
NCLP
12
MUTE INVERTER
45
IC106
5 5.0V
1
VCC
3.3V
0V 2
0V 3 4
GND
5V
IC104
0V
5
1
VCC
OR
0V 2
12
4
0V 3
GND
C148
0.01
V.MUTE
COMPOSER
NCLP
3.3V
IC105
5
0V
5.0V
5
1
VCC
HSY
2
VSY
0V 3 4
VSY
GND
HSY/VSY COMPOSITE
SYNC COMPOSER
6
L100
SW5V-3
10uH
R165
0
12
13
R101
30K
C101
Q100
10
CSYNC
COMP/
SYNC
BUFFER
AC
LZ-702W
15
R173 C33 C16
MO 3
82 100P 1000P
L
L
L
L
H
HPOS1
3.3V
HPOS2
0V
HPOS3
HPOS4
0 or 3.3V
MODE1
MODE2
MODE3
NBLK
IC3
TIMING
3.3V
CONTROLLER
NDSH 0V
VSS1
0V
NDSV
NCLP
3.3V
3.3V
POLS
0V
0V
POLC 0V
3.3V
COMPS
VDD1
R176 R30 R25
0 10K 10K
C6
R31
R177 10K
560P
R27
C38
0
10K
0.022
C18
1000P
TC3.3V
19
18
VCOM
D101
L102
10uH
5V
Q105
0V
C150
Q102
0.01
12
5.0V
Q102
SYNC-OUT
5V
MUTE SW
0V
3.3V
R174
1
HSY IN 0V
0
R113
2
SYNC OUT
1K
3
SYNC IN2
TP100
5V
C112
5V
0V
1
0V 2.0V 4
SYNC IN1
C149 R117 3.5V
5
HFIL OUT
0.01 R167 270 0V
6
H : SYNC IN2
SYNC SW
L : SYNC IN1
TP101
0
0V 7
GND11
R120 1.4V 8
F ADJ
5.0V 9
18K
VCC1
R111
3.3V 10
PSAVE
47K
0V 11
H : RGB2
SW2
L : NTSC or RGB1
0V 12
H : RGB1 2.5V
SW1
L : NTSC
C125
0.1
R
G
B
13
1
X35-4640-60 (4/5)
AD
14
59 16
44
3.3V
4
VSS4
0V
3.3V
4
0V LPFI
4
SPL
4
VDD4
4
1.6V
OSCI
4
SCK
4
0V VSS3
4
3.3v SIZE
4
XCKI
3
TST4
3
TST3
3
TST2
0V
3
TST1
3
SVSEP
3.3V 3
XCKE
0V
3
VDD3
17
V.COM
BUFFER
R134
2.2K
R112
10K
5V
0V
3.4V
L : PAL
3.3V
OUT
H : NTSC
0V
IC103
TIMING CONTROLLER
CHROMA GAMMA IC
0.9V
2.5V
2.5V 2.5V
SW5V-3
27