Memorex MVDT2002SM Service Manual page 174

A B
BACKUP+5V
8
FROM/TO REGULATOR
BACKUP+5V
AT+5V
DVD_H
VCR_POWER_H
AT+12V
P.CON+5V_C
P.CON+5V
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
6
VCR_A_MUTE
CTL+
CTL-
C_ROTARY
DUMMY_V.SYNC
V.REC_ST_H
H.AMP_SW1
COMP
5
EOT SENSOR
5.0 5.0
BOT SENSOR
Q103
Q101
ST-304L
ST-304L
0
0
EOT
BOT
CENT LED SW
4
Q102
RT1N241C-T112-1
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
2.5
VRO
C113
25V 10 KA
2.5
VRI
25V 10 KA
0
AVSS
C122
C117
2.5
CTLA
0.01 B 10V 33 KA
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
RT1N241C-T112-1
0
MS_SEN A
Q105
RPI-352C40N
5.1 0.9 5.1 2.4 1.2
5.1
2
1
2 3 2 3
1 4 1 4
MS_SEN B
0.9 1.4 0.5 1.4
4 3
Q104
5.1
0
RPI-352C40N
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
2SC3052-T1
0
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
OEC8078A 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
0
27K 5
REEL SENSOR
Q108 NC
RPI-303
0 2.4
2 OUT IN
1
1 2
5.2 5.1
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 4.8
8 7 6
1 2 3
0 0 0
5.0
RESET
H.SW
16
0.1
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
NC
5.1
AV_SW
4.9
Q116
0
2SC3052-T1
0
AV_SW1
0
0.4
NC
R152
5.0
REMOCON_IN
22K
2.4
REEL-S
2.4
REEL-T
0
5.0
R171
1K R166
10K
BUFFER
Q114
2SA1530A-T1 5.1 D106
4.4
MTZJ12B-EIC
5.1
0
SW
5.0
Q110
RT1N141C
0 R165
4.7K
R148
R159 4.7K
2.7K
R149
R160
2.7K
R150
4.7K
NC
0
R164_1
4 2.7K
NC
4.7K 1/4W
GND
3
0
CAUTION: DIGITAL TRANSISTOR
F G
H
8
5
7
4
0
FROM/TO DVD IN/OUT
TX
RX
DVD_RESET
AV_SW1
FROM/TO IN/OUT
6
KEY_B
KEY_A
REC_LED
T-REC_LED
REMOCON_IN
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
HIFI_ENV
HIFI_H.SW
VCR_A_MUTE
SDA
POWER_FAIL
SCL
3
ST_SELECT
TO SOUND AMP/SURROUND
VOL_PWM
TV_POWER_H
TV_A_MUTE
OSD_R
TV_POWER_H
FROM/TO DIGITAL COMB/FILTER
OSD_G
COMB_GND
SDA
SCL
OSD_B
2
AFT
FROM/TO TV POWER
GND
DEGAUSS_H
POWER_FAIL
MOTOR_GND
PCB010
DME069
1
H
G-12