System Block Diagram - Zenith XBS344 Series Service Manual

7. SYSTEM BLOCK DIAGRAM

TO/FROM DECK
MODE S/W
5V
TAPE TOP
ES501
R550
R557
LD501
DECK IR LED
RS501
R553
T-UP REEL
R555
SUP REEL
5.3VA
R531
5.3VA
MS501
11 77
GND
I-Limit
MODE S1 25 MODE S1
MODE S2
24 MODE S2
MODE S3
MODE S4
23
MODE S3
22 MODE S4
X502
14MHz
38
X in
OSC
39
X out
X501 35 Xc in
OSC
32.768KHz
36 Xc out
21
TOP Sensor
ES502 R535
C534
R537
END Sensor
20
TAPE
C535
R564
END
R556
T/U REEL
80
R536
RS502
R538
79 SUP Reel
R558 C582
CST IN
58
CST.SW/REC TAP
CS501
R5C6
R544
C552
76 95 94 87 12 60 9 18 13 16 59
90
50
17
REC 'H' 74
C.ROT 15
A.MUTE'H' 84
67
S clk
S in 66
S out
65
R/C 14
A. ENV 8
A. H.SW 19
IC501 A. MUTE 'H' 68
REC 'H' 74
M37760
2 71
I C CLK
2
I C DATA 72
52
CV OUT
AFT 100
PLL CLK
71
PLL DATA 72
VCR 'H' 26
OSD
(X2) CLK 64
(X2) DATA 63
(X2) DATA 50
POWER FAIL 78
34
RESET
37
44 45 88 49 40 99 53 98
+
C500
OSC
L511
R598
C595
C596
3-30 3-31
TO/FROM AVCP
CV IN
COMP IN
IC601
PM6001 P6M01 FLD
FLD DRIVE IC
TO/FROM AUDIO(Hi-Fi)
TO Hi-Fi ONLY
TO/ FROM TU/IF
TO DIGEST
CVIN FROM A/V
IC504
GND
3 Vcc
2
1
Q503
IC505
5.3VA
R541
GND
Q501
3 Vcc
2
R583 1
R529
+
L512
C592
5V
+
C503
+
C561
L501
DT-65780M's