Service Manuals, User Guides, Schematic Diagrams or docs for : LG VCR bl112w system block diagram
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4. SYSTEM BLOCK DIAGRAM
I - LIMIT
78
TO/ FROM DECK
5.3VA
TO/ FROM AVCP/SECAM
MODE S/W MS501
25 26 31 32 38 39 40 61 80 81 12 24 27 28 45 43
CAP. PWM
DRUM PWM
CTL +
CTL -
DFG
CFG
CAP. REV 'H'
DRUM ADJ
V. ENV
V.H/SW30
DPG
D.V.Sync
C.ROTARY
C.Vout
C.Vin
CAP. ADJ
77 MODE S1
C. SYNC
54
76 MODE S2
75 MODE S3 OSD 'H' 59
74 MODE S4 REC START 'H' 79
SECAM DET 'H' 7
L/D MOTOR IC502 IN 2 SE / MES 'H' 85
R526
12V 7 Vcc 1 6 19 LD (-) A. MUTE 'H' 62
PML01 8 Vcc 2 IN 1 CLK 90
R525
10 OUT 2 5 20 LD (+) DATA 91
LD 2
M
C529
LD + 1 2 OUT 1 V ref REC LED 95
4 CHAR. 51 DOSC OUT
1 GND OSC 50 DOSC IN LP / EP LED 96
ZD501 X501 PLAY LED 97 PM901,902 P9M01, M02 LED
5.3VA 10MHz
72 OSC1 CST IN LED 98
R550
R551 OSC
73 OSC2 IC501 STAND-BY LED 99
ES501
X503 OSC
53 4fsc in GMS3974
17,73447MHz 52 4fsc out
C534
T-UP END ES502 + 1 T-UP SENSOR
LD501 R5C5
DECK IR LED R557 C536
R5C7
3 SUP SENSOR
+
R564 C535 KEY RTN 0 13 KEY SW
KEY RTN 1 14 KEY SW
R552 RS501 SUP END C537
R560 Q522
Vcc (OSD) 42 +
R553 4 T-UP Reel R516
C504 C503
Q514 REG 9V
+
R554 R556 C538 C531
T-UP REEL ZD502
Vss (SYSCON)
R559
Vcc (SERVO)
R555 Vss (SERVO) IC504
Vss (OSD)
RS502
Vcc (SYS)
Vcc (A /D)
Vss (A/D)
5 SUP Reel GND
16 3 Vcc 2
RESET
SUP REEL R558 C539 1
8 CST IN
Q515 82 2 33 49 71 15 41 22
R/C
L502
CST. TAB SW. 5
+
5.3VA
PM901 ZD503 C505 C506
R544 CS501 R5C6 1
C516
R548 C552
P9M01 +
5.3VA ZD506 C500 C501
ZD507
R/C
+
ZD504 C521 C561
ZD505
3-19 3-20
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