Magnavox 19MDTR20 Service Manual page 22

Video Block Diagram
TP1402
V-OUT
TO
CHROMA TV- VIDEO
BLOCK
EXT-V-IN
TU1001
(TUNER UNIT)
VIDEO
17
JK1701
VIDEO-IN
EXT-H
RENTAL
REC/EE/PB
FROM
SERVO/SYSTEM
SPL-PLAY
CONTROL BLOCK
ROTA
DV-SYNC
SP/LP/SLP
(DECK ASSEMBLY)
CYLINDER ASSEMBLY
VIDEO (R)-1 HEAD
VIDEO (L)-1 HEAD
VIDEO (L)-2 HEAD
VIDEO (R)-2 HEAD
1-5-3
WF5
MAIN CBA
Q1401
V-OUT
BUFFER
IC1401
VIDEO/AUDIO
SIGNAL PROCESS
WF4
42 42
V-AGC
38
71
36 RENTAL
16 REC/EE/PB
73 SPL-PLAY
14 ROTA
39 DV-SYNC
59 SP/LP/SLP
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
X1401
NOTE FOR WIRE CONNECTORS:
3.58MHz
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
WF2
35 62 61
6dB VXO
45
AMP
CHARA
MIX
FBC
Y/C
MIX
R P
CL1401
V(R)-1
9 91
8 V-COM 90
7 V(L)-1 89
6 V(L)-2 88
5 V-COM 85
4 V(R)-2 84
83
82
TP1401
WF1 RF-SW
RF-SW
13
FROM/TO
V-ENV
SERVO/SYSTEM 93
V-H-SW
CONTROL BLOCK
15
ENV-DET
94 ENV-DET
REC VIDEO SIGNAL PB VIDEO SIGNAL
Q1402
CCD 1H
47 49 BUFFER 44
DELAY
DOC YNR Y/C COMB
CHROMINANCE
SIGNAL PROCESS
AGC
AMP
R
L
SP
HPF
EP
ENV
L
DET
R
HA-MONITOR
1-5-4
MODE: SP/REC
LUMINANCE
SIGNAL PROCESS
R
P
74
TP1403
WF6
TD857BLV