Schematic Diagram; Overall Block Diagram - Pioneer S-FCRW240B-S Service Manual

1

3. SCHEMATIC DIAGRAM

QQ
3 7 63 1515 0

3.1 OVERALL BLOCK DIAGRAM

A
JA201
Line
B
IN
Level
IC 201
NJM2904M
FU1
REK1067(5A)
AC120V
60Hz
C
TE
L 13942296513
D
30
20
10
E
0
-10
www
50Hz : 120mV
F
12
1
http://www.xiaoyu163.com
2
B
OPERATON ASSY
MAIN Volume
L. P. F.
A
2 1
Buff
(+6dB)
to Photo
Coupler
T11
+
Ó
−
Ó
D101-D104
S5688G
[dBv]
7 LEVEL DIAGRAM
A
x ao
-18.5dBv
+6dB
. i
S-FCRW240B-S
2
http://www.xiaoyu163.com
3
(AWU7761)
IC 201
H. P. F.
NJM2904M
5
Buff
OP Amp
Vref
+ 6.1v
+16v
D201
Vref
Power
IND
T12
Q Q
3 6 7
D31-D34
S5688G
B
+6dB
u163
y
3
4
2 9 9 4
8
Gain Adj
Photo
Coupler
+6 V
+16v
PC41
TLP621(Y)
B
0 v
Q201
7 2
Buff
2SC2412K
Offset
Cancel
+ 6v
IC 41
IC 43
NJM2904M
NJM7806FA
+6 V
to Power
AMP
+12.6v -12.6v
D33
D31
1 3 1 5 0 5 8 2 9
D32
D34
IC 44
NJM7906FA
-6 V
- 6v
C
+8dB
m
co
.
4
2 8
9 9
C
1
9 4 2 8 9 9
-1.5