JVC HR-XVC20US Service Manual page 70

A
8
FROM/TO POWER
DVD_POWER_CTL
AT+12.6_V
P.CON+5V
AT+5V[M-CON]
VCR_POWER_ON-L
POWER_FAIL
AT+5.2V
7
GND
MOTOR_GND
C3033_1
FROM/TO DECK
35V
CP3001
TMC-J12P-B2
1 CAP FG
W906
6
2 CAP VCO
3 VCC
4 CAP.M/F/R
5 I LIMIT
6 MOTOR GND
7 GND
8 LD/CY VCO
9 CAP CTL
10 LDM CTL
11 CYL FG/PG
12 CYL CTL
5
5.2
BOT SENSOR
Q3008
4
ST-304L
0
3
TAB SW
SW3001
LSA-1144EAU
FROM/TO MPEG/MICON
DVD_RESET
TX
RX
2
FROM/TO AUDIO/VIDEO
SYS_MUTE
CAUTION: DIGITAL TRANSISTOR
1
A
B
AT+5V[M-CON]
AT+5.2V
330 YK
CAP_FG
AT+12.6_V
P.CON+5V
R3003
CAP_F/R
3.3K
CAP_LIMIT
C3040
1 F
AT+12.6_V
CONTROL_IN
LDM_CTL
CYL_FG/PG
CYL_DRIVE
AT+5.2V
5.2
EOT SENSOR
Q3006
ST-304L
0
EOT
BOT
(LED_GND)
R3011
AT+5.2V
47K
TAB_SW
P.CON+5V
CAUTION: DIGITAL TRANSISTOR
B
C
VCR SYSCON SCHEMATIC DIAG
R3057
CAP_LIMIT
22K
TU_A_MUTE-H
TV/VCR
POWER_MUTE-L
SYS_MUTE
AV_SW1
W835
Y/C_CS
RF_CH_SW
AUDIO_MUTE-H
V.REC_ST-H
LDM_CTL
CAP_F/R
C.ROTARY
C3008
H.AMP_SW
0.0047 B
24
COMP
R3032
CONTROL_IN
R3031 10K
CYL_DRIVE
R3008 1M 21
CYL_FG/PG
1K
R3001
H.SW
5.6K
HIFI_H.SW
R3014 56K
C3004 0.022 B
C3007 0.1 B
DUMMY_V.SYNC
C.SYNC
AT+5V[M-CON]
R3024
15K
R3017
CTL+
560
R3020
CTL-
560
AT+5.2V
MS_SEN A
Q3005
RPI-352C40N
5.1 5.1
5.1
0.9
2 3 2 3
1 4 1 4
0.4 1.3
0.9 1.3
MS_SEN B
Q3004
RPI-352C40N
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
C
D
C3025
18P CH
X3001
10MHz
100BT01004
23
R3034
1M
NC
0 5.1 3.4 2.5 0 0 0 5.1 1.4 1.5
3.3
84 83 82 81 80 79 78 77
5.0
0
5.0
5.1
SYS MUTE
0
NC FL CLK/VSC CLK
85 TUNER L
0
NC FL DATA/VSC DATA
86 VCR_H
5.0
AV SW2
NC
87 POWER MUTE-L
5.0
AV SW1
0.1
Y/C CS
5.1
RF CH SW
0
AUDIO MUTE-H
0
V.REC ST-H
2.4
LDM_CTL
0
CAP FWD-L
2.5
C.ROTARY
0
H.AMP SW
0
COMP
2.7
CAP FULL
0
CYL SPEED UP
3.0
D FG/PG
2.5
VIDEO H.SW
2.5
HIFI H.SW
2.7
111 C SYNC
DRUM PWM
R3012 2.7
112 VCC (BACK UP)
CAP PWM
56K
0
DUMMY_V.SYNC
0
VSS (GND)
0.4
5.1
1 2 3 4 5 6 1 7 8
0 0 2.5 0 2.5 0.1 2.6 2.5 2.3
25
22
C3013 C3016
6.3V 47 KA
6.3V 22 KA
C3015
820P CH
1.2
2.4
0 1.2
2 1 2 1
3 4 3 4
0
5.2 5.2 0
27
D
C3047
15P CH
NC
0 4.9
76 75 74 73 72
SYSCO
O
9 0 11 12 13
5.1 2.0 2.0 1.5 0.4
R3025
470
L3003
12uH
C3044
12P CH
NOTE: THIS
OF PR
2-5