Philips DVP3050V/75, Service Manual

Page: 28 / 77

1-12-3
Audio Block Diagram
H9923BLA
98
REC AMP
7
6
AU
T
O
BIAS
99
P-ON+5V
P-ON+5V
Q401
BIAS OSC
Q402
N-A-PB
T
O
Hi-Fi A
UDIO
BLOCK DIA
GRAM
N-A-REC
Q405 (PB=ON)
Q403
SWITCHING D-REC-OFF
4
EQ AMP
100
1
2
LINE AMP
MUTE
96
3
PB-ON
SP/LP-ON
P
R
ALC
IC301 (A
UDIO PR
OCESS)
76
4
A
UDIO-PB/REC
CN504
3
A-COM
1
AE-H
2
AE-H/FE-H
A
UDIO
HEAD A
UDIO
ERASE HEAD
A
CE HEAD ASSEMBL
Y
FE HEAD
2
FE-H
1
FE-H-GND
CN501
MAIN CB
A
PB-AUDIO SIGNAL
REC-AUDIO SIGNAL
Mode : SP/REC
10
D-REC-H
A
UDIO-MUTE-H
FULL ERASE HEAD
23
24
SERIAL
DECODER
(DECK ASSEMBLY)
LINE1
LINE2
80
A
UDIO-IN-F
IIC-B
US SCL
IIC-B
US SD
A
T
O
SER
V
O/SYSTEM
CONTR
OL BLOCK
DIA
GRAM
“
“ = 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
.)