JVC HR-XVC20US Service Manual page 71

Dvd/cd player hi-fi
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E
AGRAM
(VCR/DVD PCB)
NC
NC
NC
0 4.8 4.8
4.9
0
0
0
0 4.9 5.0
4.8 4.8
3
72
71
70
69
68
67
66
65
64
63
62
61
56
VCC (BACK UP)
55
SEG1
54
Y/C DATA
SYSCON/TIMER/SERVO
IC3001
OEC0132A
31
ST SELECT
30
KEY-A
29
KEY-B
2
13
14
15
16
17
18
19
20
21
22
23
24
1.5
0.4
0
3.1
2.6
5.1
2.6
0
0
2.5
0
2.6
NC
C3038
1 F
SYSTEM RESET IC
IC3003
PST3231NR
R3049
NC
NC
0
0
47K
5
4
NC
NC
OUT
IN
GND
1
2
3
5.0
5.0
0
D3009
1SS133
: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
E
2-6
The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only.
Note :
When replacing the parts , refer to the Parts List.
F
RX DRIVE
Q3003
KRA103SRTK
5.2
0
5.3
0
C3061
0 4.8
4.8
0
0.1 F
0
60
59
58
57
5.1
0
4.8
W837
5.0
W838
Y/C CLK
5.0
5G/CS/BS LED
5.0
4G/TIME SHIFT LED
5.0
3G/TV/VCR LED
5.0
2G/DUB/REC LED
5.0
1G/VCR/T-REC_LED
0.3
VCR LED
5.1
DVD LED
0
DVD_POWER_CTL
3.3
DVD RESET
4.7
REM IN
5.0
POWER ON-H
NC
0
REEL T
0
REEL S
0
R3055 22K
POWER ON-L
0.1
R3038 4.7K
VIDEO_MUTE-H
5.0
C3036
POWER FAIL
5.1
AVCC (BACK UP)
0.1
0
TAB SW
SERVICE
0
SERVICE
TP3001
2.5
AFT S.CURVE
3.7
HiFi ENV
0
5.2
5.2
25
26
27
28
0
0
1.3
1.3
D3007
1SS133
R3010
10K
4.9
5.0
5
6
4
3
0
0
F
G
TP3002 H.SW
FROM/TO Y/C/AUDIO/CCD/H.AMP
DUMMY_V.SYNC
C.SYNC
V.REC_ST-H
C.ROTARY
AUDIO_MUTE-H
CTL-
CTL+
3.4
H.AMP_SW
RX
COMP
RX DRIVE
ENV.DET
Q3007
KRC103SRTK
H.SW
Y/C_CS
Y/C_DATA
SEG_1
Y/C_CLK
Y/C_DATA
4FSC
Y/C_CLK
5G/CS/BS_LED
FROM/TO TUNER/JACK
4G/VSC_LED
RF_CH_SW
SW_V_OUT
3G/TV/VCR_LED
AV_SW1
2G/DUB/REC_LED
SCL
1G/VCR/T-REC_LED
SDA
AFT-S.CURVE
VCR_LED
TV/VCR
DVD_LED
VIDEO_OUT
DVD_POWER_CTL
TU_A_MUTE-H
POWER_MUTE-L
DVD_RESET
VIDEO_MUTE-H
REM_IN
FROM/TO HI-FI/DEMODULATOR
REEL-T
REEL-S
VCR_POWER_ON-L
VIDEO_MUTE-H
AT+5.2V
POWER_FAIL
AT+5V[M-CON]
F
TAB_SW
NC
AFT-S.CURVE
HIFI_ENV.DET
FROM/TO OPERATION1/DISPLAY
ST_SELECT
KEY-A
DVD_LED
VCR_LED
KEY-B
KEY-A
KEY-B
REM_IN
1G/VCR/T-REC_LED
2G/DUB/REC_LED
3G/TV/VCR_LED
AT+5.2V
4G/VSC_LED
5G/CS/BS_LED
SEG_1
SEG_2
SEG_3
SEG_4
SEG_5
SEG_6
SEG_7
SEG_8
SEG_9
SEG_10
C3030
1 F
JG3002
JG3003
JG3004
0
5.2
7
8
TX
MD0
RESET
FWE
AT+5V[M-CON]
2
1
0
0
RECORD LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
PLAYBACK COLOR SIGNAL
G
H
NC
V.REC_ST-H
HIFI_ENV.DET
HIFI_H.SW
AUDIO_MUTE-H
SCL
SDA
ST_SELECT
JG3005
JG3006
JG3007
JG3008
PCBB00
VMB282
H
8
7
6
5
4
3
2
1

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