Sharp CL2843S Service Manual page 19

AY
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
Q701
KRC107M
2 3
R744
1
1K
R745
100K
7 88 89 90 91 92 93 94 95 96 97 98 99 100
VDD 1
-20dBATT 2
3
100 S-BUSY
9G
R702
T-BIAS 4
R703
T_T1/T2 5
R704
REC/PLAY 6
R705
RES OUT 7
R706
DRF 8
R707
WRQ 9
R708
RESET 10
X2 11
IC701
X1 12
XL701
IX0337AWZZ
VPP/IC 13
4.1943MHz
XT2 14
SYSTEM
R709
CD INT 15
CROCOMPUTER
VDD 16
R710
CD CLK 17
R711
18
CD DI
R712
CD DO 19
R713
31 KEY 0 CD CE 20
R714
32 KEY 1
CE 21
R715
33 KEY 2 22
CLK
R716
T2 PLAY SW_B 23
54 DI
R717
24
53 T1 PLAY SW_A DO
AVSS 25
52 CD CLAMP SW
R718
M-BUSY/TUN SM 26
51 T2 RUN
SPEANA3 27
SPEANA2
28
SPEANA1 29
SPEANA0 30
4 43 42 41 40 39 38 37 36 35 34 33 32 31
+B
LED722
4204SRT7
+B
+B
+B
R775
10K
R776
10K
R777
10K
+B
Y
7
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R779
3.3 (1/2W)
C707
1/50
C702
C701
220/10
0.022
+B
1K
1K
1K
1K
1K
1K
1K
C703
15P
C704
18P
1K
+B
1K
1K
1K
1K
1K
1K
1K
1K
1K
+B
R725
1K
+B
+B
+B
+B
+B
RD13
680
SW714
CD
RD25
680
SW711
EQUALIZER/
X-BASS/DEMO
RD01
680
SW701
ON/STAND-BY
8 9
Figure 19 SCHEMATIC DIAGRAM (6/10)
WRQ(DSP)
RES OUT
CLAMP SW
+B
+B
R769
10K
+B
+B
+B
+B
KIA7042AP
5V BACK UP
D708 RESET
L701
100µH DS1SS133
3
C715
3.3/50
3
2
1
C716
0.022
RD14 RD15 RD16 RD17 RD18
820 1K 1.5K 2.2K 2.7K
SW716 SW719
SW715 SW717 SW718 SW720
TUNING/
FAST
MEMORY/ REWIND
TAPE
TIME
FORWARD REPEAT
SET
DOWN
RD10 RD12
RD11
820
1K 1.5K
SW713
SW712
VOLUME
VOLUME UP
DOWN
RD02 RD03
RD04
RD05 RD06
820
1K
1.5K 2.2K 2.7K
SW702 SW703 SW704 SW705 SW706 SW707
CLOCK TIMER/ PTY.TI EON ASPM DISPLAY
SLEEP SEARCH MODE
10
– 19 –
CD-BA1300H
BI702
CD INT
1 1 CD INT
2 2 WRQ(DSP)
DRF
3 3 DRF
CD CE
CD CE
4 4
P15 12 - F
CD DO
5 5 CD DO CNP12
CD DI
CD DI
6 6 TO CD SERVO
CD CLK
CD CLK
PWB
7 7
RES OUT
8 8
CLAMP SW
9 9
CD_GND
D_GND
10 10
CNS702
FFC19
1
1 TUN SM
CE
2
3 DO
4 DI
5 CLK
6 T_BIAS
T_T1/T2
7
8 REC/PLAY
M_GND
9
M_10V
10
11 SMUTE
TO MAIN PWB
12 VF1
13 -VP
VF2
14
AC_RLY CONT
15
16 UN_SW 5V
D_GND
17
+B
18 SW_5V
19 POWER
19
+B
R772
4.7K
D710
IC704
DS1SS133
D711
DS1SS133
+B
1
RX701
R773
2 REMOTE SENSOR
100
1 2 3
C717
C719
10/50 C718
47/16
0.022
RD19 RD20 RD21 RD22 RD24
RD23
3.9K 100K
5.6K 10K 15K 33K
SW725
SW723
SW724
SW721
TUNER
PLAY/ REC/
TUNING
STOP
(BAND)
PAUSE UP
RD07 RD08 RD26 RD09
56K 100K
3.9K 6.8K
SW710
SW708 SW709
OPEN/
STATION DISC
CLOSE
SKIP
11 12
P17 12 - D
CNP701