Hitachi DV-PF35U, Service Manual

Page: 97 / 102

B-4
B-4 Hi-Fi Audio Block Diagram
48
9
10 61 14 15
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
MODE OUT MUTE
AMP
28 62 53 59 57 43 42 27 21 22 29 30 24
SIF
AUDIO(R)-IN AUDIO(L)-IN N-A-OUT AUDIO(R)-IN-F AUDIO(L)-IN-F DVD-AUDIO(L) DVD-AUDIO(R)
36
AUDIO(L)-OUT
MOD-AUDIO
AUDIO(R)-OUT
N-A-IN
Hi-Fi-H-SW
AUDIO-MUTE-H
AUDIO-
MUTE
D-REC-H
NORMAL-L
56
ST/SAP-MODE
TO AUDIO BLOCK DIAGRAM
IIC-BUS SDA IIC-BUS SCL
MAIN CBA
Hi-Fi-
A
UDIO(R)
7
Hi-Fi
-COM
8
Hi-Fi-
A
UDIO(L)
9
CN253
IC451
(MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
REC-AUDIO SIGNAL
PB-AUDIO SIGNAL
Mode : SP/REC
TO AUDIO BLOCK DIAGRAM
TO SERVO/ SYSTEM CONTROL BLOCK DIAGRAM TO SERVO/ SYSTEM CONTROL BLOCK DIAGRAM
D
VD A
UDIO SIGNAL
1 3
Hi-Fi AUDIO (R) HEAD Hi-Fi AUDIO (L) HEAD
CYLINDER ASSEMBLY
(DECK ASSEMBLY)
DRIVE
Q430 Q429
Q432 Q428
MUTE
MUTE INVERTER