Emerson EWR20V4, Service Manual

Page: 28 / 91

1-10-4
Video Block Diagram
E9400BLV
MAIN CB
A
REC VIDEO SIGNAL
PB VIDEO SIGNAL MODE: SP/REC
OSD CHARACTER MIX
38
40
IC501
(OSD)
LUMINANCE
SIGNAL PROCESS
VIDEO (R)-1 HEAD
VIDEO (L)-1 HEAD
(DECK ASSEMBLY)
V(R)-1 V-COM V(L)-1
CN253
1 2 3
V(L)-2 V-COM V(R)-2
4 5 6
VIDEO
AGC
RP
R P
SYNC SEPA
FBC
Y/C MIX
CCD 1H
DELAY
R P
YNR/COMB FILTER
CHROMINANCE
SIGNAL PROCESS
IC301 (VIDEO SIGNAL PROCESS/ HEAD AMP)
26
57
28
QV/QH
6dB
AMP
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM TO VIDEO INPUT SELECT BLOCK DIAGRAM TO VIDEO OUTPUT SELECT BLOCK DIAGRAM
VCR-VIDEO DVD-VIDEO(DUB)
VCR DVD
TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM
CYLINDER ASSEMBLY
RF-SW
RF-SW
59
V-ENV H-A-SW H-A-COMP
H-A-COMP
TP302
VIDEO (L)-2 HEAD
VIDEO (R)-2 HEAD
TP301
C-PB
D-V-SYNC C-SYNC
D-V-SYNC
25 53 24
YCA-SCL
14
36
37
39
34
Q301
BUFFER
30
58 60
SP EP
54
YCA-SDA
55
YCA-CS
SERIAL
I/F
VCA
CLAMP
69 70
SP HEAD AMP EP HEAD AMP
72 73 74 65 66 67
ENV-DET
C-ROTA
C-ROTA/RF-SW
WF2
WF3
PB/EE-VIDEO VCR-VIDEO(DUB)
TO VIDEO INPUT SELECT BLOCK DIAGRAM TO VIDEO OUTPUT SELECT BLOCK DIAGRAM
(VCR DVD DUBBING) (DVD VCR DUBBING)