Read Sharp HT-CN300H (serv.man8) Service Manual online
– 27 –
HT-CN300H
7
8
9
10
11
12
FW9
CNP712
TO
DSP PWB
P21 12 - G
CNS104
FROM
AMP. PWB
P24 1 - E
TUNER_L
AGND
TUNER_R
AGND
CCB_DO
DATA
CCB_CLK
CCB_CE0
SPAN
TUN_SM
RDS_RST
RDS_READY
RDS_RDDA
RDS_RDCL
AGND
TUNER_R
AGND
CCB_DO
DATA
CCB_CLK
CCB_CE0
SPAN
TUN_SM
RDS_RST
RDS_READY
RDS_RDDA
RDS_RDCL
+12V
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
FM_IF_IN
AM_MIX_OUT
REG
AM_IF_IN
GND
SD
STEREO
FM_DET
VCC
IF_OUT
PHASE
PHASE(FM/AM)
MO/ST
L-CH_OUT
R-CH_OUT
MPX_IN
MPX_VCO
FM/AM_OUT
AM_LOW_CUT
VSM
AM_RF_IN
FM_AFC
AM_OSC_IN
AM_OSC_OUT
1
2
3
X_IN
NC1
CE
DI
CL
DO
FM
MW
MUTE
MO/ST
ST_IND
IF_IN
IO2
NC2
AM_IN
FM_IN
VDD
PD
AIN
AOUT
VSS
X_OUT
TP302
1
3
2
1
3
2
1
2
3
1
1
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
10
11
12
13
14
11
12
13
14
14
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
XOUT
TEST
CIN
FLOUT
VSSA
VDDA
MPXIN
XIN
READY
RDS-ID/
RDCL
RDDA
RST
MODE
VDDD
VSSD
VREF
ICT21
LC72723
CT30 0.022
R350
2.7K
L354
C367
1/50
X351
456 kHz
C368
1/50
R356
1K
R357
470K
470K
C374 0.018
C369
27P
C373 0.018
C372
1/50
R362
220
R361
220
R363
15K
R364
15K
R370
1K
C371
1/50
C356
0.001
0.001
C355
22P
C358
1/50
R355
3.3K
R359
1.8K
R354
3.9K
C376 0.022
C396
100/10
L352
100
µ
H
C395
0.022
0.022
R389
3.9K
Z351
DZ5.1BSB
C370
1/50
C357
2.2/50
R391
150
R392
150
Q371
KTA1266 GR
R371
4.7K
R399
10K
D352
DS1SS133
Q360
2SB562 C
R384
5.6K
R385
5.6K
R383
5.6K
C391
47/25
47/25
IC302
LC72131
PLL(TUNER)
C386
330P
330P
R376
1K
R395
47K
R360
4.7K
R378
82K
C385
0.01
R379
2.2K
R393
1K
R377
47K
L351
100
µ
H
C380
10/16
C393
1/50
R380
1.5K
C392
0.001
0.001
C394
47/25
47/25
C387 0.022
CF352
T351
AM IF
C353
0.022
R353
270
C354
0.022
C398
100/10
C399
0.022
C377
0.047
0.047
C350
0
.047
R352 1K
IC303
LA1832S
FM IF DET./
FM MPX./
AM IF
C363 0.022
C365 0.022
C364 4.7/50
C366 0.001
C361
0.022
0.022
362
3/50
R372 1K
CF351
CON301
CNP302
ICT1
LC72723
RDS DECORDER
RT24
56K
CT25
22P
(CH)
RT30 1K
LT21
2.2
µ
H
LT22
2.2
µ
H
CT32
47/16
47/16
CT31
47/16
47/16
CT28
0.022
0.022
CT27
0.022
0.022
CT26
560P
560P
RT26
56K
RT25
10K
QT21
KTC3199 GR
CT29
0.022
0.022
XT21 4.332 MHz
CT22
0.022
0.022
CT21
47/16
47/16
RT21
10K
RT28
1K
RT29
1K
RT27
1K
CT23
22P(CH)
Figure 27 SCHEMATIC DIAGRAM (14/17)
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