Philips 20MC4304, Service Manual

Page: 303 / 316

1-10-2
T1102MCBLH
Hi-Fi Audio Block Diagram
N-A-OUT
AUDIO-OUT(R)
AUDIO-OUT(L)
N-A-IN
Hi-Fi-H-SW
Hi-Fi MUTE NORMAL-H
ST/SAP-IN
TO AUDIO BLOCK DIAGRAM
SCL
Hi-Fi AUDIO (R) HEAD Hi-Fi AUDIO (L) HEAD
CYLINDER ASSEMBLY
MAIN CBA
CL1401
IC1701
(MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
TO AUDIO BLOCK DIAGRAM
JK1702
A
UDIO(L)-IN
JK1703
A
UDIO(R)-IN
SIF
T
O TV
PR
OCESS
BLOCK DIA
GRAM
Q1701
TP1702
TP1701
SDA
Hi-Fi-R
Hi-Fi-L
PB A
UDIO SIGNAL
REC A
UDIO SIGNAL
Mode : SP/REC TO SYSTEM CONTROL/SERVO BLOCK DIAGRAM TO SYSTEM CONTROL/SERVO BLOCK DIAGRAM
Hi-Fi-
A(R)
3
Hi-Fi
-COM
2
Hi-Fi-
A(L)
1
48
9
61 14
INPUT SW R-CH INPUT SW L-CH
NOR SW
MUTE
SERIAL DATA DECODER
L-CH HiFi AUDIO SIGNAL PROCESS R-CH HiFi AUDIO SIGNAL PROCESS
MTS/SAP SIGNAL PROCESS
OUT PUT SW R-CH OUT PUT SW R-CH
dBX DEC
MUTE CONTROL
MATRIX
ENV DET
MUTE
AMP
28 62 53 57 43 42 27 21 22 29 30 24 36 56
ST/SAP
D-REC-H
TO SYSTEM CONTROL/SERVO BLOCK DIAGRAM
“
“ = SMD
NO
TE FOR
WIRE CONNECT
ORS:
1.
PREFIX SYMBOL "CN" MEANS CONNECT
OR.
(CAN DISCONNECT AND RECONNECT
.)
2.
PREFIX SYMBOL "CL" MEANS
WIRE-SOLDER
HOLES OF
THE PCB
.
(WIRE IS SOLDERED DIRECTL
Y
.)
TEST POINT INFORMA
TION
:INDICA
TES A
TEST POINT
WITH A JUMPER
WIRE A
CR
OSS A HOLE IN
THE PCB
.
:USED
T
O INDICA
TE A
TEST POINT
WITH A COMPONENT LEAD ON FOIL SIDE.
:USED
T
O INDICA
TE A
TEST POINT
WITH NO
TEST PIN.
:USED
T
O INDICA
TE A
TEST POINT
WITH A
TEST PIN.