Read Sharp XL-T300 (serv.man14) Service Manual online
– 25 –
XL-T300H
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9
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Figure 25 SCHEMATIC DIAGRAM (2/10)
(0V)
4.7V
1.3V
1.3V
4V
(2.2V)
2.3V
(1.2V)
3.8V
(1.9V)
3.8V
(4.3V)
2.9V
0V
5V
5V
5V
5.2V
(0V)
2.6V
(2.6V)
0V
10.9V
10.8V
11.7V
3.9V
(0V)
(0V)
3.5V
3.7V
(11.4V)
1.7V
0V
2V
2.5V
5.1V
2.3V
0V
5.1V
2.5V
2.5V
2.5V
2.5V
0.6V
1.3V
1.3V
0V
0V
0V
0V
5.1V
2.5V
(0V)
2.3V
2.1V
18 17
16
15
14
13
12
6 7 8
9
10 11
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
5 6
7 8
9
10 11
12
13
14
15
16
17
18
14
13
12
11
10
9
8
7
6
6
5
4
4
3
2
1
1
PD
(CH)
(CH)
FM
FM
MUTE
(AM/FM)
PHASE
PHASE
IF OUT
VCC
FM DET
STEREO
SD
GND
OUT
OUT
OUT
CUT
FM/AM
MPX VCO
MPX IN
MO/ST
L-CH
R-CH
DO
MO/ST
IF REQ
IF IN
AM IN
FM IN
VDD
RDS CLK
RDS DATA
VSM
SD
FM ST
DO
CL
CE
DI
A_12V
D_GND
TUN_L
TUN_R
A_GND
AM SIGNAL
FM SIGNAL
1
2
3
CNP301
P28 5-A
TO
MAIN PWB-A1(1/3)
FM IF
Low PassFilter
0.022
0.001
2.7K
456kHz
1/50
56P
1/50
1K
470K
0.027
0.027
6.8K
6.8K
KRC104 M
5.6K
5.6K
1/50
1/50
2.2K
1/50
3.3K
2.2/50
0.001
100/10
0.047
270
0.022
0.022
0.022
2.2K
0.01
100
µ
H
5.6K
1K
330P
47K
220P
1/50
10K
DZ5.1BSB
100
µ
H
100/10
0.022
390
0.022
390
5.6K
KTA1266 GR
5.6K
5.6K
6.8K
47/16
1N4148
10K
4.7K
1.8K
0.022
56K
10K
56K
KTC3199 GR
1N4148
0.022
2.2
µ
H
47/16
47K
10/16
330P
0.1
560P
LC72723M
RDS
1K
1K
0.1
22P
22P
10/16
C365
C366
L354
X351
R350
C367
C369
C368
R356
R357
C374
C373
R364
R363
Q351
R362
R361
C371
C372
R366
C358
R355
C357
C356
C398
C399
CF351
R353
C354
C353
C387
R379
C385
L351
R377
R393
C386
R395
C355
C370
R376
ZD351
L352
C396
C383
R387
R391
C395
R392
Q360
R383
R385
R384
C391
D308
R365
R360
R359
CNS301
C537
R534
R532
R533
Q521
D521
C536
L521
C535
R521
C521
C522
C523
C524
IC521
R529
R528
C527
X521
4.332MHz
C526
C525
C380
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