System Control/Deck; Power; Operation - Memorex MVR4041 Service Manual

AT + 5.2V
P.SAVE_OFF_5V
P.CON+5V
DECK PCB
BOT SENSOR
Q101
CP1003
1 VCC
2 BOT
3 LDM-
4 LDM+
LOADING
MOROTOR
M
CP1001
1 U-OUT
2 V-OUT
3 W-OUT
MICRO
MOTOR
4 M-COM
6 PG OUT
7 PG GND
CP1002
3 I LIMIT
4 CTL
CAPSTAN
DD UNIT
6 FG
7 CAP/M F/R
1G/TV/VCR_LED
2G/T-REC_LED
3G/REC_LED
4G
5G
SEG_1
SEG_2
SEG_3
SEG_4

OPERATION

SEG_5
SEG_6
SEG_7
SEG_8
SEG_9
SEG_1
0
KEY-A
KEY-B
REM_IN
E-3
SYSTEM CONTROL/DECK BLOCK DIAGRAM
Q1003
SENSOR SW
2
1 2 1
MS_SEN B
MS_SEN A
Q1004
Q1005
3 4 3
4
REEL SENSOR
Q1002
EOT SENSOR
Q1006
2 3
1
4
CYL/LOADING MOTOR DRIVER
IC1002 LB11880
13 X OUT
VC 2
15 Y OUT
16
U OUT
V OUT PG OUT2 7
17
W OUT BFG0 8
18
19 M COM
6 PG OUT1 X IN 11
5 PG IN(-) Y IN 12
PG IN(+)
4
TIMER SYSCON SERVO CONTROLLER IC
IC1001 OEC8071A
SENS LED
63
Y/C CLK 14
81
MS SEN-A
Y/C CS 15
80
MS SEN-B
Y/C DATA 16
DUMMY V.SYNC 24
C. ROTARY 98
CV IN 49
CTL(-) 75
74
CTL(+)
H. AMP SW 99
REEL-T
4
COMP 100
VIDEO ENV DET 83
H. SW
23
EOT
79
V.REC ST-H
59
AUDIO MUTE-H
60
78 BOT
DRUM PWM
34
61 CYL.SPEED UP
HIFI ENV DET
84
66 DPG HIFI H SW 26
DFG
65 ST SEL
85
IIC CLK
18
96 IIC DATA 17
LDM RVS-H
97 LDM FWD-H
CAP FULL
32
33 AFT S. CURVE
CAP PWM 82
CAP LIMIT
21
AUDIO OUT MUTE-L 30
67 CFG VCR-H(TV/VCR) 27
46
CAP FWD-L CV OUT 47
TUNER-L 35
90
1G/TV/VCR LED
29
RF CH SW
91 2G/T-REC LED
92 3G/REC LED
89
93 4G
POWER ON-L
POWER FAIL-H 1
94 5G
7 SEG1
8 SEG2
25
RESET
9
SEG3
SEG4
10
OSC I
37
11 SEG5
OSC 0 38
12 SEG6
13 SEG7
TAB SW 31
SW1001
19 SEG8
20 SEG9
FF/REW-L 62
22 SEG10
Q1010
87
KEY-A
FF/REW SW
86
KEY-B
76
C0
5
REM IN
Y/C_CLK
Y/C_CS
Y/C_DATA
DUMMY_V.SYNC
C. ROTARY
OSD V
CTL-
CTL+
H. AMP SW
COMP
ENV.DET
H.SW
V.REC ST-H
AUDIO MUTE-H
V.REC ST-H
AUDIO MUTE-H
HIFI_ENV DET
HIFI_H SW
ST_SEL
IIC_CLK
IIC_DATA
IIC_CLK
IIC_DATA
AFT-S.CURVE
A_OUT_MUTE-L
TV/VCR
VIDEO_OUT
TUNER-L
RF_CH_SW
POWER_ON-L
POWER_FAIL
Q1007,Q1014
AT + 5.2V (M-CON)
RESET SW
X1001
14.31818MHz
HIFI/DEMODULATOR
HI-FI/
DEMODULATOR
TUNER

POWER

E-4