Magnavox 19MDTR20 - Dvd-video Player, Service Manual

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57 7
48 47
13 14
69
6
7
R-CH
INSEL
L-CH
INSEL
NOR
SW
SERIAL
DATA
DECODER
OUTPUT
SELECT
VCO LPF
L-CH BPF
R-CH
PNR
PILOT
DET
CONT
STEREO
PLL
STEREO
FILTER
SAP
FILTER
SAP
DET
SIF
DEMOD SAP
DEMOD
L-R
DEMOD
ST/SAP
SW
MATRIX
L-CH
PNR
LIM DEV
COMP
SW
NOISE
VCO LPF LIM DEV
COMP
COMP
DC
SW
NOISE
dBX
DEC
ENV
DET
MODE
OUT
RIPPLE
FILTER
DO
DET
MATRIX
R-CH BPF
P
R
R
L
P
R
HOLD
PULSE
NOISE
DET
34 33
23
4
80
78
37
38
54
77
1
39
26
24
27
N-A-OUT
LIM
49
A-OUT (L)
A-OUT (R)
N-A-IN
Hi-Fi-H-SW
A-MUTE
NORMAL-H
40
ST/SAP-MODE
FROM/TO AUDIO
BLOCK
SCL
P-ON+9V
TO SERVO/SYSTEM
CONTROL BLOCK
Hi-Fi
AUDIO
(R) HEAD
Hi-Fi
AUDIO
(L) HEAD
CYLINDER
ASSEMBLY
MAIN CBA
Hi-Fi- A(R) 3
Hi-Fi -COM 2
Hi-Fi- A(L) 1
CL1401
IC1751(MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
Hi-Fi Audio Block Diagram
TD857BLH 1-5-7 1-5-8
REC-AUDIO SIGNAL PB-AUDIO SIGNAL
PILOT
CANCEL
TO
AUDIO BLOCK
FROM/TO
SERVO/ SYSTEM
CONTROL BLOCK
FROM
SERVO/SYSTEM
CONTROL BLOCK
62 63
JK1702
AUDIO-IN(L)
JK1703
AUDIO-IN(R)
BUFFER
Q1010
SIF
TU1001
(TUNER UNIT)
Q1701
TP1701 TP1702
SDA
Hi-Fi-L Hi-Fi-R
NOTE FOR WIRE CONNECTORS:
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.)
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.