Memorex MVR4041 Service Manual page 80

MODE_VCC
AT+5.2V
P.CON+5V
POWER_FAIL
POWER_ON-L
POWER
P.CON+5V
AT+12.6V
CP1001
1 CAP_FG
2
CAP_VCO
VCC
3
4 CAP/M/F/R
I_LIMIT
DECK 5
8 LD/CY_VCO
9 CAP_CTL
10 LDM_CTL
11 CYL_FG/PG
12 CYL_CTL
REM_IN
KEY-B
KEY-A
1G/TV/VCR_LED
2G/T-REC_LED
3G/REC_LED
OPERATION SEG_1
SEG_2
SEG_3
SEG_4
SEG_5
SEG_6
E-3
SYSTEM CONTROL/SERVO BLOCK DIAGRAM
Q1007
CENT SW
2 1
2 1
MS_SEN B
MS_SEN A
Q1004
Q1005
3 4 3 4
REEL SENSOR
Q1002
BOT SENSOR EOT SENSOR
Q1008 Q1006
2
3
1
4
TIMER SYSCON SERVO CONTROLLER IC
IC1001 OEC0105A
CENT LED
61
P.OFF-L 55
7
MS SEN-A
FS/IIC CLK 18
6
MS SEN-B
IIC DATA
19
Y/C_CS 20
DUMMY V.SYNC 27
V.REC ST-H 56
C.ROTARY 28
A.MUTE 59
CV IN 43
REEL-T
87
32
CTL-H(-)
CTL-H(+) 31
H.AMP SW
29
EOT-H
12
COMP 30
ENV DET
14
BOT-H
3
H.SW
24
89 POWER FAIL-H
C.SYNC 54
81 POWER ON L
Hi Fi H.SW 23
40 CFG
HIFI ENV 4
39 DPG
ST SEL 10
CAP FWD
60
66 CAP LIMIT
21 CAP FULL
AFT S. CURVE
11
25 CAP PWM
93
AUDIO OUT MUTE-L
63
LDM_CTL
VCR-H(TV/VCR) 84
38 DFG
CV OUT 45
65 CYL SPEED UP
58
TUNER-L
82
REM_IN
62
RF_CH_SW
8
KEY-B
TAB SW 80
9
KEY-A
GND
74
79 1G/TV/VCR LED
78 2G/T-REC LED
OSC 2
73
77 3G/REC LED
RESET
16
94
SEG 1/RV/CATV
95 SEG 2/LAG_SEL
1
SEG 7
96 SEG 3/INDEX_ON/OFF
SEG 8 100
SEG 4
97
SEG 9/JUST_CLK 85
98
SEG 5
SEG 10/ACTIVE_ON-L 86
99 SEG 6
4G 76
5G 75
4FSC
IIC_CLK
IIC_DATA
Y/C_CS
DUMMY_V.SYNC
V.REC_ST-H
C.ROTARY
AUDIO.MUTE-H
OSD_V
CTL-
CTL+
H.AMP_SW
COMP
ENV.DET
H.SW
C.SYNC
IIC_CLK
IIC_DATA
V.REC ST-H
AUDIO_MUTE-H
HIFI_H.SW
HIFI_ENV.DET
ST_SELECT
IIC_CLK
IIC_DATA
AFT-S.CURVE
A_OUT_MUTE-L
TV/VCR
VIDEO_OUT
TUNER-L
RF_CH_SW
SW1001
X1001
1002T01003
IC1003
R3111N311A/C-TR
SYSTEM
AT+5V(M-CON)
1 2
RESET IC
SEG_7
SEG_8
SEG_9
SEG_10
4G
5G
Y/C/AUDIO/CCD/
HEAD AMP
HI-FI/
DEMODULATOR
TUNER
OPERATION
E-4