FUNAI 31A-250 - Page 19

1-9-2
Video Block Diagram
HM240BLV
CYLINDER ASSEMBLY
VIDEO(R)
VIDEO-COM
VIDEO(L)
CN253
1 2 3
(DECK ASSEMBLY)
VIDEO (R) HEAD
SP HEAD AMP EP HEAD AMP
REC FM AGC
FROM/TO SERVO/SYSTEM CONTROL BLOCK
FROM SERVO/SYSTEM CONTROL BLOCK
C-SYNC
RF-SW
D-REC-H
C-ROTA
D-V-SYNC
V-ENV
LUMINANCE SIGNAL PROCESS
CHROMINANCE SIGNAL PROCESS
C-SYNC
V-ENV
D-V-SYNC
C-ROTA/RF-SW
VIDEO (L) HEAD
TU701(TUNER UNIT)
IC301 (Y/C SIGNAL PROCESS)
IC501 (OSD)
REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC
SERIAL
DECORDER
VIDEO-OUT1
1
VIDEO-IN1
1
33
VIDEO-OUT2
1
VIDEO-IN2 3
1
3
JACK CBA
48 50 52 56
24
6
50
52
19 20
JK101
VIDEO -OUT1 VIDEO -IN1
19 20
JK102
CN151 CN152
CN101 CN102
VIDEO -OUT2 VIDEO -IN2
61 63
96 95 93 94
CHARA. INS.
CCD 1H DELAY
SP
BYPASS
MUTE
PB/EE
IN1
TUNER
IN1
TUNER
MUTE
PB/EE
IN2 IN2
AGC
PR
R Y C
P
RPRP
EP
Y. DELAY
Y/C MIX
+
21 7978
AGC VXO
OSD CHARACTER MIX
FBC
1/2
58 59
65
2928
IIC-BUS SDA IIC-BUS SCL
69684643
67 84 62 70
D-REC-H
80
BUFFER
Q101
BUFFER
Q102
J23
V-OUT
WF1
X301
4.433619MHz
WF3
VIDEO OUT
VIDEO IN
BUFFER
Q351
MAIN CBA
TP502
RF-SW
Comparison Chart of Models & Marks
Model Mark
31A-250 31D-250
A
31C-250 B
C
55COLOR
-IN
B,C
TRICK-H
SECAM-H
PB-H OUT
IC370 (PAL/SECAM DECTECTOR)
PAL/SECAM DETECTOR
25 44
17 14 18
2
16 29
1
28
TP301
C-PB
WF2
B