Memorex MVDT2402 Service Manual page 64

Color television/video cassette recorder/ dvd video player
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A
B
BACKUP+5V
8
FROM/TO REGULATOR1
BACKUP+5V
AT+5V
DVD_H
VCR_POWER_H
AT+12V
P.CON+5V_C
P.CON+5V_A
7
FROM/TO Y/C/AUDIO/HEAD AMP
Y/C_VIDEO
Y/C_CLK
Y/C_DATA
Y/C_CS
H.SW
VIDEO_OUT
ENV_DET
VCR_A_MUTE
6
CTL+
CTL-
C_ROTARY
DUMMY_V.SYNC
V.REC_ST_H
H.AMP_SW1
COMP
5
EOT SENSOR
BOT SENSOR
5.0
5.0
Q103
Q101
ST-304L
ST-304L
0
0
EOT
BOT
CENT LED SW
Q102
4
DTC124EKA
0.2
4.9
0
C128
16V
220
YK
R173
1K 1/2W
3
FROM/TO CAPSTAN DD UNIT
CP101
TMC-J12P-B2
1
CAP FG
2
CAP VCO
3
VCC
R104
CAP_F/R
4
CAP.M F/R
3.3K
CAP_LIMIT
5
I LIMIT
MOTOR_GND
6
MOTOR GND
7
GND
8
LD/CY VCO
CONTROL_IN
9
CAP CTL
LDM_CTL
2
10
LDM CTL
CYL_FG/PG
11
CYL FG/PG
CYL_DRIVE
12
CYL CTL
1
A
B
G-11
C
MICON SCHEMATIC DIAGRAM
R177
5.6K
C126
27
C125
10V
100
KA
0.1
B
NC
2.2
1.6
0
0
4.7
50
49
48
47
5.1
C116
C123
2.5
0.0022 B
R118
1
F
2.6
AFCLPF
2.2K
0
VCR_A_MUTE
VCR.A.MUTE
C114
R112
0
FSCLPF
0.01 B
100
5.0
TV_POWER_H
TV_POWER_ON-H
0
NC
VM_OSD_SW
R114
1.3
CYL_DRIVE
CYL_SPEED_UP
2.2M 1/4W
0
OSD_Y
BLK
0
DEGAUSS_H
DEGAUSS
0
OSDR
R
0
OSDG
G
C110
0
OSDB
B
0.0047 B
0
CAP_F/R
CAP_F/R
R108
1.9
CYL_FG/PG
CYL_FG/PG
1K
0
H_CONTROL
H_CTL
17
C109
3.3
FGF
0.0039 B
0
C119_1
2.5
VRO
C113_1
25V
10
KA
2.5
VRI
25V
10
KA
0
C122_1
C117
AVSS
2.5
0.01
B
10V
33
KA
CTLA
5.0
AVDD
R115
2.4
CTL+
CENT_LED_CTL
CTL(+)
560
2.4
TAB SW
CTL(-)
SW101
TAB_SW
R116
CTL-
76
77
78
79
LSA-1144EAU
2.5
0 2.6 0.1 5.1 5.1 4.9 4.9
560
0
SW
4.9
Q106
DTC124EKA
0
MS_SEN A
Q105
RPI-352C40N
5.1
5.1
0.9
5.1
2.4
1.2
2
1
MS_SEN B
2
3
2
3
Q104
RPI-352C40N
1
4
1
4
0.9
1.4
0.5
1.4
4
3
0
5.1
REEL SENSOR
Q107
RPI-303
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
(VCR PCB)
C133
0.1 B
28
SW
Q112
0
2SC2412K
0
S101X
1.6
R129
1M
NC
NC
NC NC
NC
4.9
0
0
5.0
3.3
1.0
0
0
0
5.0
4.9
3.6 3.6
2.7
0
0
5.0
5.0
0
3.5
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
H.SW
IIC_OFF
25:RESET
51:
VDD2
CAP_LIMIT
52: AFCC
24:DUMMY.V.SYNC
TV_MUTE
TUNER_H
SCL
SDA
TX
SYSCON/TIMER/SERVO IC
RX
IC101
OEC8076A
TV/DVD_LED
Y/C_DATA
Y/C_CS
Y/C_CLK
RENT_H
EXT_A_MUTE
FF/REW_L
98:C_ROTARY
AV_SW1
99:H.AMP.SW1
100:COMP
EXT_MUTE
76:CO
REMOCON IN
77:
NC
REEL-S
REEL-T
POWER_FAIL
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
0 2.6 2.4
0 3.4 3.6
0
0 5.0
0 0.1
0
0
0
3.5
4.9
0
NC
R137
4.7K
BACKUP+5V
D108
1SS133
AT+5V
R133
NC
27K
5
REEL SENSOR
Q108
NC
RPI-303
0
2.4
2
OUT
1
1
4
3
0
5.1
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
D
E
F
G
C148
C151
68P CH
0.1 F
5.0
0
4.8
8
7
6
1
2
3
0
0
0
5.0
RESET
H.SW
0.1
16
DUMMY_V.SYNC
TP102
NC
R153
3.5
H.SW
1K 1/4W
5.0
IIC_OFF
R144
3.6
CAP_LIMIT
1K 1/4W
0
TV_A_MUTE
R107
S101Y
0
4.7K
4.8
W841
SCL
4.8
W842
SDA
0
TX
0
RX
0
NC
5.0
Y/C_DATA
0.1
Y/C_CS
5.0
Y/C_CLK
0
NC
0
EXT_A_MUTE
5.1
AV_SW
4.9
0
Q116
0
2SC2412K
AV_SW1
0
0.4
EXT_MUTE
R152
5.0
REMOCON_IN
22K
2.4
REEL-S
2.4
REEL-T
0
5.0
R171
1K
R166
10K
5.1
D106
MTZJ12B
5.1 4.4
BUFFER
0
Q114
SW
5.0
2SA1037AK
Q110
DTC114EKA
0
R165
4.7K
R148
R159
4.7K
2.7K
R149
R160
4.7K
2.7K
R150
NC
0
0
4
2.7K
R164
4.7K
NC
IN
GND
2
3
5.2
5.1
0
CAUTION: DIGITAL TRANSISTOR
F
G
H
8
4.8
5
7
4
0
FROM/TO DVD IN/OUT
TX
RX
DVD_RESET
AV_SW1
GND
FROM/TO IN/OUT
6
KEY_B
KEY_A
REC_LED
T-REC_LED
REMOCON_IN
EXT_A_MUTE
VCR_A_MUTE
EXT_MUTE
TV_POWER_H
FROM/TO CHROMA/IF
5
OSD_R
OSD_G
OSD_B
OSD_Y
TV_POWER_H
V.SYNC
H_CONTROL
H.SYNC
SDA
SCL
VCR_POWER_H
PROTECT
4
IIC_OFF
EMERGENCY
FROM/TO Hi-Fi/DEMODULATOR
V.REC_ST_H
AT+5V
HIFI_ENV
HIFI_H.SW
VCR_A_MUTE
SDA
POWER_FAIL
SCL
3
ST_SELECT
FROM/TO SOUND AMP/SURROUND
TV_POWER_H
TV_A_MUTE
OSD_R
SCL
SDA
TV_POWER_H
OSD_G
FROM/TO DIGITAL COMB FILTER
AV_SW1
OSD_B
2
AV_SW2
SDA
SCL
AFT
FROM/TO TV POWER
GND
DEGAUSS_H
POWER_FAIL
MOTOR_GND
PCB010
VMC293
1
H
G-12

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