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