Tech Line VD-170, Руководство по обслуживанию

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1-11-1
BLOCK DIAGRAMS <VCR SECTION>
Servo / System Control Block Diagram
H9979BLS
M
LOADING MOTOR
CAPSTAN MOTOR
CONTR
OL
HEAD
5
CTL(+)
6
CTL(-) CN504
ACE HEAD ASSEMBLY
MAIN CBA
KEY- 1
POWER-LED
ST-S T-REEL CTL(+)
RESET
REC-SAF-SW
PG-DELAY
CTL(-)
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
END-S
94 95 10
4
80 34
2
31
7
(DECK ASSEMBLY)
T-REEL
Q515 RESET
Q506
S-REEL
79
SW-POINT
AL+5V
VR501
TIMER+5V
S-REEL
PS502
TP502
KEY- 2
8
IIC-BUS SDA IIC-BUS SDA
IIC-BUS SCL
AUDIO-MUTE-H
AUDIO-MUTE-H
H-A-COMP
V-ENV
P-ON-H C-POW-SW
P-ON-H C-POW-SW P-DOWN-H
67 66 32
P-DOWN-H
OUTPUT-SELECT
SW506
TO VIDEO BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM
SDA SCL
IC502
(MEMORY)
83
IIC-BUS SCL
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
IIC-BUS SDA
H-A-COMP
V-ENV
DVD-POWER
DVD-POWER
C-SYNC
FRONT-AV
FRONT-AV
C-SYNC
OUTPUT-SELECT
IIC-BUS SCL
LD-SW
9
AL+5V
AL+5V
SW507 LD-SW
AL+5V
D555 S-LED TO POWER SUPPLY BLOCK DIAGRAM
TP501
Q507
SENS-INH
IC501 (SERVO/SYSTEM CONTROL)
AUDIO-SW1
AUDIO-SW1
62
AUDIO-SW2
AUDIO-SW2
63
OUTPUT-SELECT
5 6
SENSOR CBA SENSOR CBA
END-S
ST-S
Q504 Q503
REC-SAFETY
END-S
CTL
97
TP503
CTL
23
CN502
C-FG C-CONT D-PFG C-F/R
90 76 87 78
LM-FWD/REV
81
D-CONT
77
AL+20.5V/+12V AL+12V(2) P-ON+15V
P-ON+5V
1
AL+20.5V/+12V
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(2)
12
P-ON+15V
58 20 82
6
17 16 13 15 18 33 71 72 21
KEY SWITCH
KEY SWITCH
CYLINDER ASSEMBLY DRUM MOTOR
PG SENSOR
M
M
CAPSTAN MOTOR
MOTOR DRIVE CIRCUIT
REMOCON-IN
14
REMOCON-IN
TO DVD SYSTEM CONTROL /SERVO BLOCK DIAGRAM <DVD SECTION>
Q502
Q508
D504
Q509
Q511
TIMER-LED
25
DVD-LED
29
VCR-LED
30
REC-LED
26
REC
D503
VCR
D502
DVD
D501
TIMER
AL+5V
DVD-8PIN-IN
DVD-8PIN-IN
42
TO DVD VIDEO /AUDIO BLOCK DIAGRAM <DVD SECTION>
11
KEY-1
33
POWER-LED
D651
CN508
CN509
AL+5V
POWER SW CBA
POWER SW651 POWER