Service manual

– 23 –
CD-C622/C2900
Figure 23 SCHEMATIC DIAGRAM (4/10)
7
8 9 10 11 12
R365
680
C335
560P
C330
8.2P(UJ)
C334
22P(UJ)
C331
0.047
T331
R321
120
R350
47K
C358
0.0015
R360
220K
R340
5.6K
C355
220P
C350
220/10
C349
0.022
C337
10/16
C333
0.022
C356
3.3/50
T333
C351
0.0022
C354
220P
R359
3.9K
Q350
2SC3331
R349
1.5K
IC302
LC72131
PLL(TUNER)
R348
33K
R347
3.9K
R362
390
Q344
KRA102 M
C353 0.018
C367
1/50
C363 0.015
C360
0.022
L343
100µH
ZD351
MTZJ5.1B
IC303
LA1805
C364
0.015
C361
22/25
R379
2.2K
D342
1SS133
R369
2.2K
R352
15K
C359
0.022
0
R381
10K
CF351
C369
47/25
3
38
0
0P
C357
3.3/50
R361
10K
Q343
KRA109 M
R356
10K
R375
1.2K
VR351
6.8K(B)
7
16
15
14
13 12
11
10
9
8
7
6
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4 3 2 1
VD331
SVC348S
C366
1/50
C365
1/50
C383
0.022
C395
0.022
P25 12 - C
TO MAIN/DECK SECTION
T352
T351
10
18
2
19
20
21
22
23
24
R317
820
NC NC
NC
NC
5.1V
4.4V
11V
10.9V
0.2V
TP302
VDD
FM IN
AM IN
IO2
IF INIO1
BO4
BO1
DO
OSC
AM AM
+B
AM
AM
AM AM
RF
FM
+B
FM
DET DET
OUT
FM IF
IN MIX IF GND ST IND
TUN
IND L CH R CH /FM
VCO
FM–
M/ST
MPX
–IN
D_GND
CLK
DI
CE
DO
CHASSIS
GND
AM ANT.
AM OSC.
+B
2
13
FM DET.
AM IF
VCO
+B
+B
TUN_R
A_+12V
A_GND
TUN_L
+B
+B
+B
2
3
1
1
2
3
8.4V
FM/AF IF MPX.
AM BAND
COVERAGE fL
AM TRACKING
fL
FM/AM
SWITCHING