Magnavox MWD2206A, Service Manual

Page: 23 / 66

1-11-1
BLOCK DIAGRAMS <VCR SECTION>
Servo / System Control Block Diagram
M
LOADING MOTOR
SENSOR CBA SENSOR CBA
CAPSTAN MOTOR
CONTR
OL
HEAD
CN502
CN504
ACE HEAD ASSEMBLY
MAIN CBA
KEY- 2
RF-SW
C-FG C-CONT D-PFG ST-S T-REEL
C-F/R
KEY- 1
D-V SYNC
C-SYNC
V-ENV
CTL(+) RESET
C-ROTA
D-REC-H
D-REC-H
REC- SAF-SW
PG-DELAY
AUDIO-MUTE-H
AUDIO-MUTE-H
RF-SW
D-V SYNC
C-SYNC
V-ENV
C-ROTA
END-S
IC501 (SERVO/SYSTEM CONTROL)
47 56
CTL
58
CTL(-)
57 28 49 69 62
3
20 27 65
18 78 64 19 41
2
24
7
66 67
LM-FWD/REV
21
D-CONT
29
(DECK ASSEMBLY)
END-S
T-REEL T-REEL
ST-S
ST-S
Q504 Q503
Q501
RESET
Q506
SW-POINT
AL+5V
VR501
TIMER+5V
TP506
TP505
END-S TP507
P-ON-L
22
P-ON-L
P-DOWN-L
1
P-DOWN-L
H-A-SW
79
H-A-SW
H-A-COMP
80
H-A-COMP
46
OUTPUT-SELECT
YCA-SCL
YCA-SDA
YCA-CS
YCA-SCL
14
YCA-SDA
15
YCA-CS
16
YCA-SCL
YCA-SDA
YCA-CS
SW511
REC SW
TO VIDEO BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM
CLOCK DATA
TU701(TUNER UNIT)
11 12
VCR/TV
5
LD-SW
68
AL+12V(1)
AL+5V
AL+5V
SW512
AL+12V AL+18V
P-ON+5V
LD-SW
AL+5V
D555 S-LED
TO POWER SUPPLY BLOCK DIAGRAM
12 13
IIC-BUS SCL
77
VCR/TV-IND
IIC-BUS SDA
KEY SWITCH
KEY SWITCH
TP502
S-INH
5
CTL(+)
6
CTL(-)
1
AL+12V(1)
2
P-ON+5V
3
C-FG
4
C-F/R
5
C-CONT
6
GND
7
LM-FWD/REV
8
D-CONT
9
D-PFG
10
GND
11
AL+12V
12
AL+18V
TP513
CTL
OUTPUT-SELECT OUTPUT-SELECT
DVD-POWER
DVD-POWER
26
REMOCON-IN
5
REMOCON-IN
WF12 WF13
CYLINDER ASSEMBLY
DRUM MOTOR
PG SENSOR
M
M
CAPSTAN MOTOR
MOTOR DRIVE CIRCUIT
DVD-H-IND
71
TIMER-IND
75
REC-IND
72
D567
D
V
D
D566
VCR
D564
TIMER
D565
REC
AL+5V
Q563 Q565
Q566 Q567
DVD-L-IND
70
TO DVD SYSTEM CONTROL /SERVO BLOCK DIAGRAM <DVD SECTION>
PO
WER
CN508
CN509
D561
PO
WER
SW518
P-ON+9V
22
KEY-1
11
POWER-LED
POWER SW CBA
H986NBLS