Sharp CD-BP1200W Service Manual page 21

21 22 23 24 25 26 27 28 29 30 31 32 33
Q701
KRC107 M
2
3
4.9V
R744
1K
-25.6V
1
R745
100K
92 93 94 95 96 97 98 99 100
1
-20dBATT 2
1
VDD
S-BUSY 3 N.C.
R702 1K
T-BIAS 4
R703 1K
T_T1/T2 5
R704 1K
REC/PLAY 6
R705 1K
RES OUT 7
R706 1K
DRF 8
R707 1K
WRQ 9
R708 1K
RESET 10
11
X2
XL701
X1 12
4.1943MHz
13
VPP/IC
C704
18P
14
XT2
R709 1K
15
1
CD INT
AW
16
VDD
EM
R710 1K
MPUTER
17
CD CLK
R711 1K
CD DI
18
R712 1K
19
CD DO
R713 1K
20
CD CE
R714 1K
CE 21
R715 1K
CLK 22
R716 1K
DI 23
R717 1K
DO 24
25
AVSS
29 SPEANA1
R718 1K
26
M-BUSY/TUN SM
30
SPEANA0
27
SPEANA3
28
SPEANA2
29
30
39 38 37 36 35 34 33 32 31
N.C.
R719
1K
R755
4.7K
R775
10K
R776
10K
R777
10K
7
R779
3.3(1/2W)
-25.4V
C707
1/50
C701 C702
220/10
0.022
C703
15P
+B
R725
1K
+B
+B
C713
0.1/50
8
Figure 21 SCHEMATIC DIAGRAM (4/9)
+B
R769
10K
L701
D708
100µH
1SS133
R770
Q707
D707
47K
KRC102 M
1SS133
2
9.7V
1
C714
0.01
RD13 RD14 RD15 RD16
680 820 1K 1.5K
SW717
SW716 SW718
SW714
SW715
TUNING MEMORY/
REWIND
CD TAPE
/TIME SET
DOWN
RD10
RD25 RD11 RD12
680 820 1.5K
1K
SW712
SW711
VOLUME
EQUALIZER/X-BASS/
UP
DEMO
RD01 RD02 RD03 RD04
680
820 1K 1.5K
SW703
SW702
TIMER
CLOCK
/SLEEP
SW701
ON/STAND-BY
9 10
– 21 –
CD-BP1200W/1250W
BI702
CD INT
1
WRQ(DSP)
2
DRF
3
CD CE
4
CD DO
5
CD DI
6
CD CLK
7
RES OUT
8
CLAMP SW
9
CD_GND
10
CNS702
1 TUN SM
CE
2
DO
3
4 DI
5
CLK
T_BIAS
6
7 T_T1/T2
8 REC/PLAY
9
M_GND
10 M_10V
11
SMUTE
12
VF1
13
-VP
14
VF2
15
AC_RLY CONT
16
UN_SW 5V
17
D_GND
18
SW_5V
19 POWER
20
SPAN
21
SW OUT
CNS701
+B
+B
R772
4.7K
D710
1SS133
IC704
5V BACK UP
KIA7042AP
+B
3 1
RX701
C715
REMOTE
3.3/50
2
SENSOR
3
RESET
0V
C716
0V
0.022
C717
1
10/50
R771
100K
RD17 RD18 RD19 RD20 RD21
2.2K 2.7K 3.9K 5.6K 10K
SW719 SW720 SW721
SW723
FAST PLAY/ STOP
REC/
FORWARD REPEAT PAUSE
SW713
VOLUME
DOWN
RD05 RD06 RD07 RD08
RD26
2.2K 2.7K 3.9K 56K
6.8K
11
1
2
P19 12-F
3
TO CD
4
SERVO PWB
5
CNP12
6
7
8
9
10
FFC21
1
P23 12-D
CNP701
TO MAIN PWB
21
D711
1SS133
R773
100
2 3
C718 C719
0.022 47/16
RD22 RD23 RD24
15K 33K
100K
SW725
TUNER
(BAND)
SW724
TUNING
/TIME UP
RD09
100K
SW709 SW710
DISC OPEN/
SKIP CLOSE
12