FUNAI 25A-664, Service Manual

Page: 17 / 81

48
47
13
14
51
65
67
69
73
6
7
11
53
R-CH
INSEL
L-CH
INSEL
IF SINAL
PROCESS
NOR
SW
SERIAL
DATA
DECODER
OUTPUT
SELECT
VCO LPF
L-CH BPF
R-CH
PNR
L-CH
PNR
LIM DEV
COMP
SW
NOISE
VCO LPF
LIM DEV
COMP
COMP
SW
NOISE
ENV
DET DO
DET
MIX
R-CH BPF
P
R
R
L
P
R
HOLD
PULSE
NOISE
DET
ALC
31 30
23
80
2
78
38
39
40
26
24
27
N-A-REC
TU-AUDIO
TU701
AUDIO
SIF
LIM
MUTE
4
N-A-PB
Hi-Fi-H-SW
A-MODE
TO AUDIO BLOCK
IIC-BUS SDA
IIC-BUS SCL
TO
SERVO/ SYSTEM
CONTROL BLOCK
Hi-Fi
AUDIO
(R) HEAD
Hi-Fi
AUDIO
(L) HEAD
CYLINDER
ASSEMBLY
MAIN CBA
Hi-Fi- A(R) 7
Hi-Fi -COM 8
Hi-Fi- A(L) 9
CL253
IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
Hi-Fi Audio Block Diagram
HC4S4BLH
REC-AUDIO SIGNAL PB-AUDIO SIGNAL Mode : SP/REC
JACK CBA
AFV CBA
JK101
A-IN1(R)
A-IN1(L) 2
6
2
6
1
3
1
3
JK102
CL151
CL152
CL101
CL102
A-IN2(R)
A-IN2(L)
A-OUT1(R)
A-OUT1(L)
A-OUT2(R)
A-OUT2(L)
TU-AUDIO(R) 4
TU-AUDIO(L) 5 4
5
CN701 CN1
SIF 2
TU-AUDIO 1
2
1
CN701 CN1
2
21
22
D.C.
ALC
SW
SW
ALC
D.C.
76
75
A-IN2(R) 9
A-IN2(L) 8
9
8
A-OUT2(R) 6
A-OUT2(L) 11
6
11
A-IN1(R)
10
A-IN1(L) 8
10
8
A-OUT1(R) 6
A-OUT1(L) 12 6
12
Q451
1-7-7 1-7-8
REAR
JK751
A-OUT(R)
A-OUT(L)
JK758
A-IN(R)-F
JK757
A-IN(L)-F
FRONT
71
9