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JVC DR-MH20SE Service Manual Page 32

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Audio/Video signal input control section
#
C4318
0.1
GND
VCC
#
C4319
470p
C/R1
GND
#
#
R4319
C4310
12k
470p
RE1
C/R2
5
#
R4311
12k
A1
RE2
B1
A2
#
D4301
1SS133
Q1
B2
#
R4317
#
R4318
Q1
Q2
22k
10k
GND
Q2
#
IC4304
74HC4538D
TO SHEET 12
443[H]
TO
SW5V
SHEET 10
GND
TO
I2C_DATA_A/V
4
I2C_CLK_A/V
SHEET 12
GND
SEPA_IN[H]
R4017
1k
C4049
10p
Q4001
C4047
0.01
C4048
L4004
R4021
OPEN
L4003
33u
270
OPEN
3
C4050
82p
R4018
TO
2.7k
R4019
YTODIGI
OPEN
CTODIGI
SHEET 10
C4055
0.1
Q4003
C4051
OPEN
R4026
1k
TO
SHEET 13
TU_VIDEO
2
TO
F_AUDIO[R]
SHEET 8
F_AUDIO[L]
GND
CN4001
R4036
75
TO CN7102
R4040
75
SHEET 14
R4041
75
1
A
R4011
0'
R4012
0'
L4002
10u
C4036
C4035
0.01
0.01
C4065
47
/6.3
C4037
0.01
R4027
5.6k
C4038
OPEN
R4029
C4056
C4039
2.2k
0.01
0.01
B4001
R4028
5.6k
C4040
0.01
C4041
0.01
C4043
0.1
C4045
2.2
/50
C4046
0.01
IC4001
JCP8038
R4001
R4003
R4004
0'
0'
0'
C4004
C4007
C4009
OPEN
OPEN
OPEN
D4002
DA204U
C4008
C4006
D4001
0.01
DA204U
C4003
1
C4005
0.01
B
C
L4006
10u
##
R4046
C4071
R4049
3.3k
0.1
180
R4042
OPEN
Q4006
2SC2412K/QRS/-X
2SC3928A/QRS/-X
R4048
0
B4002
SHORT
##
X4001
R4050
QAX0576
10k
QAX0579
Q4005
C4069
R4044
OPEN
820p
470
R4045
820
##
Q4007
##
Q4008
##
Q4009
L4007
C4067
R4043
C4068
R4047
8.2u
150p
OPEN
0.001
10k
R4010
3.3k
C4027
0.01
C4026
0.01
C4025
0.01
C4024
0.01
C4023
0.01
C4022
0.01
C4021
0.01
C4001
R4006
R4007
R4009
47
/6.3
0'
0'
0'
C4011
C4014
C4017
C4002
OPEN
OPEN
OPEN
0.1
C4012
C4013
C4016
1
0.01
1
0.01
C4018 C4019
1
1
C4010
C4015
C4020
0.01
0.01
D
E
2-27
2-28
#
L4301
10u
#
IC4301
LA7357M
#
#
C4306
R4306
0.01
1.2k
#
Q4301
#
#
R4307
R4304
10k
22k
#
C4302
#
C4307
47
/16
0.01
#
#
#
#
C4301
#
C4304
Q4302
Q4303
R4320
0.01
0
0.01
#
R4302
0
#
#
R4303
#
#
#
R4308
#
#
L4302
C4303
R4305
C4305
22k
R4301
5.6k
560
OPEN
0.01
OPEN
OPEN
L4202
SHORT
R4204
C4204
0
1
R4202
OPEN
L4201
R4201
10k
R4205
10u
0
C4203
1
IC4201
LC74793
C4201
C4202
220
/6.3
0.1
R4206
OPEN
R4209
X4201
10k
#
OPEN
R4208
R4207
R4210
0
0
C4211
0.01
C4205
C4206
OPEN
OPEN
C4208
C4207
4.7
0.056
F
#
R4312
0'
#
C4308
0.01
FSC_IN
#
C4309
0.01
VCC
#
DET.ADJ
R4309
2.2k
#
R4310
8.2k
R4211
5.6k
C4210
220
/6.3
C4209
0.22
2.7k
/50
SYNC_DET
TO
I2C_CLK2
I2C_DATA2
SHEET 12
SECAM_DET[H]
R4212
OPEN
TO
SYNC_DET1
SHEET 10
REAR1_C_IN
TO
REAR1_YV_IN
REAR2_C_IN
SHEET 11
REAR2_Y_IN
p10602001a_rev0
SHEET 9
G

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