Sharp HT-CN300 Service Manual page 17

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RDS_RDCL/KARA_LAC
RDS_RDDA
IC601
UPD780206
SYSTEM
MICROCOMPUTER
2
1
7
FL690 DISPLAY
C690
1/50
Q691
KRC107 M
R691
1K
C
B
E
R692
100K
C600
0.022
1000/6.3
1
VDD1
R602
1K
2
RDS_READY
R603
1K
3
R604
1K
4
/MIC_IN
R605
1K
5
RDS_RESET
R606
1K
6
-20_ATT
R607
1K
7
FAN_CONT
R608
1K
8
CCB_CE0
R609
1K
9
CCB_CE1
R610
10
RESET
C611
11
12P(CH)
X2
12
X1
X611
13
VPP/IC
14
XT2
R615
1K
15
SPN
16
VDD2
R617
1K
17
CLK
R618
1K
18
DATA
R619
1K
19
CCB_DO
R620
1K
20
CCB_CE2
21
FLD_CS
22
FLD_SCK
23
NO_USE1
24
FLD_SDATA
25
AVSS
R626
1K
26
POWER_LEVEL
R627
1K
27
PROTECT
R628
1K
28
THERMO
R629
1K
29
TUN_SM
R630
1K
30
DIST_1
C622
4.7/50
R636
10K
C620
0.022
8
9
Figure 17 SCHEMATIC DIAGRAM (4/17)
R690
3.3
C601
1K
C612
18P(CH)
R614
10K
R672
10K
R673
10K
R674
10K
R675
10K
BACK-UP
UN_SW_5V
C686
SW_5V
0.1/50
10
– 17 –
CNP601
14
13
12
11
10
9
8
7
6
5
4
3
2
1
D681
DS1SS133
D684
1N4004S
D683
DS1SS133
D685
R683
DS1SS133
47K
Q682
C682
KRC107 M
3.3/50
C
B
E
C685
0.022
DISPLAY PWB-B1
11
HT-CN300
FW8
14
-20DBATT
F_RLY
FAN_CONT
C_RLY
CCB_CE0
S_RLY
CLK
W_RLY
DATA
THERMO
CCB_DO
PROTECT
D_GND
POWER_LEVEL
1
CNP708
TO
DSP PWB
P21 12 - F
D680
DS1SS133
R680
4.7K
IC602
KA7042AP
VOLTAGE
REGULATOR
1
3
2
C680
10/50
12

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