Sharp CD-C621H - Page 17

CD-C621H
– 28 –
A
B
C
D
E
F
G
H
1
23456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 16.
Figure 28 SCHEMATIC DIAGRAM (9/9)
CNS303
P21 12 - D
TO MAIN PWB
C369
27P
C350 0.022
RT48 390
C352 10/16
R351
5.6K
C351 0.022
R347
6.8K
R346 330
FE301
FM FRONTEND
VR351 10K(B)
R356
1K
C368
1/50
R357
470K
C374
0.015
C367 1/50
R350 2.7K
C365 0.022
C366 0.001
C364 10/16
C363 0.022
C343
33P
C361 0.022
C362
3.3/50
R358
8.2K
L353 1mH
C334 27P (UJ)
R323
68K
C323 0.022
C373 0.015
R361 1.2K
C371 1/50
IC303
LA1832
FM IF DET./
FM MPX./AM IF
T302
C331 0.047
C332 0.022
VD301
SVC348S
C380 10/16
C387
0.022
C392 0.001
R382 150
C337
0.022
C375 3.3/50
R392 390
R391 390
R383 5.6K R365 10K
R366 10K
R368 33K
R367 1K
ZDT21
DZ5.1BSB
CT43
10/16
D353
DS1SS133
C384 0.001
C394 47/16
C397 0.022
C301 0.001
D304 DS1SS133
D303
DS1SS133
D302 DS1SS133
D301 DS1SS133
C338 0.001
L341
C341
0.022
L342
2.2mH
R364
47K
C344 33P
R369
15
R348
680
R349
33
Q301 2SC380-O
R336
10K
C335
560P
CT36
0.022
R370
1K
R371
1K
R374 1K
R372 1K
R373 1K
Q371 KTA1266 GR
D352 DS1SS133
R384
5.6K
R360
4.7K
R387 22K
ZD352 DZ3.9BSB
R376 1K
D351 DS1SS133
C391 47/16
R385 5.6K
Q360
KTA1266 GR
Q361 KRC107 M
R359
1.8K
CT27 22P (CH)
RT35
220K
RT36
220K
RT37
220K
R355 3.3K
C357 2.2/50
C358 1/50
C381 12P(CH)
C382 15P(CH)
C393 1/50
C386 330P
R378
82K
L351 100µH
L352 100µH
R354 3.9K
C356 0.001
RT49 390
R363
47K
XT21
4.332 MHz
CT26
22P
R398
1.2K
IC302
LC72131
PLL(TUNER)
CF302
C321 100/16
RT26
1K
RT30 1K
RT29 1K
RT28 1K
LT22 2.2µH
CT28 47/10
CT29 0.022
RT21
100K
CT24
0.022
R301 330
T351
CF352
R352
1K
R344 470
R345 4.7K
C347 0.022
C346 0.022
CF301
C345 0.022
R393 1K
C395 0.022
C396 100/10
ZD351
DZ5.1BSB
R395
47K
SO301
ANTENNA
TERMINAL
FM
75 ohms
R381 10K
R380 1.5K
C372 1/50
R362 1.2K
C399
0.022
C398
100/10
C353
0.022
CF351
C354 0.022
C370
1/50
C355 22P
ICT21
LC72720
RDS DECORDER
CT23
10/16
R353
270
Q354 KTC3199 GR
Q353 KTC3199 GR
C385 0.01
X352
4.5MHz
R379
2.2K
SM
SD
TUN_MUTE
TP
D GND
CLK
DO
TP TP
VDDA
XIN
VDDD
CE
CE
DI
MO/ST
ST IND
MO/ST
B01
A+12V
A GND
L
R
SYR
CL
DO
DI
VSSD
XOUT
T2
T1
CIN
MPXIN
VSSA
FLOUT
VREF
F OUT
IF OUT
VCC
VT
GND
GND
GND
ANT
VSS
AOUT
AIN
PD
VDD
AM IN
DO
CL
DI
CE
X IN
IF IN
REG
AM IF IN
GND
SD
STEREO
FM DET
VCC
IF OUT
PHASE
(FM/AM)
PHASE
L-CH OUT
R-CH OUT
MPX IN
FM/AM OUT
VSM
AM LOW CUT
AM RF IN
AM OSC IN
FM AFC
AM OSC OUT
AM MIX OUT
FM IF IN
2 1
2 1
CNP301
9
8
7
6
5
4 3 2 1
9
8
7
6
5
4 3 2 1
10 11 12
9
8
7
6
5
4 3 2 1
8
7
6
5
4 3 2 1
10
9
8
7
6
5
4 3 2 1
LT21
2.2µH
CT21 47/10
CT22
0.022
CT25
560P
QT21 KTC3199 GR
RT32 10K
RT33
56K
RT34
56K
CT37
0.022
R377
47K
MW LOOP
ANTENNA
BALUN
C330 15P (CH)
T306
MW OSC.
MW ANT.
FM MUTE LEVEL
C342 0.022
1
2
3
1
2
3
AM IF
L354
LOW PASS
FILTER
X351
456KHz
MPX VCO
TP302
CNP303
1
2
3
1
2
3
TUNER PWB-C
FM SIGNAL MW SIGNAL
RDS-ID
T6
T7
SYNC
T3
T4
T5
131415
16
17
181920
21222324
1011 12
13141517 1618192021222324
X OUT
FM IN
10 11
121314151617
20
21
22
1819
R375
68