Sharp CD-C470, Service Manual

Page: 11 / 72

CD-C407W,CP-C407
– 11 –
Figure 11 SCHEMATIC DIAGRAM (8/9)
7
8 9 10 11 12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
1 2 3 4 5 6 7 8 9
10 11 12
13 14
15
16
17 18 19
20 21
22 23 24
+B
+B
+B
+B
+B
36
17
34
13
35
25
26
27
28
NC
4.5V
SWITCHING
P6 3 - G, P12 3 - A
TO DISPLAY PWB,
MAIN SECTION
P6 2 - G
TO MAIN SECTION
0.2V
3
(11.2V)
(0V)
11.2V
(11.2V)
11.2V
(1.2V) 6.8V
(6.8V)
(6.9V)
5.5V
FM/AM IF MPX
FM IF
IN
AM MIX
AM IF
GND
IND
ST
DET OUT
TUN IND
L-CH
R-CH
FM-M/ST VCO
AM/FM
FM DET FM +B AM RF AM +B AM OSC
MPX-IN
MAIN PWB-A1(4/4)
VCO
FM DET
2
1
2
AM IF
3
2
1
3 2
1
+12V
GND(D)
LOUT
GND(A)
ROUT
CE
DI
CL
DO
IO1
X IN
CE
CL
DI
DO
B01
B04
AM IN
FM IN
PLL
IO2
VDD
PD
A IN
A OUT
VSS
X OUT
TP301
TP303
TP302
R397
4.7K
D382
1SS119
R319
4.7K
R374
6.8K
R399
10K
R400
10K
R394 1K
L381
100
µ
H
X381
4.5MHz
R388
1.5K
C385
1/50
C371 0.018 (ML)
C372 0.018 (ML)
R386 10K
R351
3.9K
C387
100P
C388 0.001
C390
12P
(CH)
C391
15P
(CH)
R390
2.2K
C392
0.001
R363 10K
R391 47K
R392 1K
R395 1K
R393 1K
R396 1K
R387
150
ZD381
MTZJ5.1B
CF351
T351
VR351
IC381
LC72131
C384
47/25
C383
0.022
CF302
R376 2.7K
R375 2.7K
R373
6.8K
R352 33K
C352 0.022
C357 0.018
C351
0.022
IC351 LA1805
R360
470
C364
0.0015
R357
1.2K
C362 3.3/50
R358
15K
C354 220/10
C355 0.022
C393
22/16
R359
10K
C356 0.0022
Q352
KRA109 M
C373
1/50
C374 1/50
C363 1/50
C358 470P
C360
3.3/50
Q381
KRA102 M
R354
47K
R353 1.5K
C359 3.3/50
T352
D381
1SS119