Sharp CD-BA250H Service Manual page 28

CD-BA250H/CD-BA2600H
DISPLAY PWB-B1
A
Q701
Q702 Q703
KTC3199 GR
KTC3199 GR KTC3199 GR
B
C
D
E
R562
820K
C561
R561
270P
10K
R565
C562
33K 270P
R567 C565
68K 0.0027
R570
C564
12K
0.0027
D716
R574
DS1SS133
F
1M
C567
R573
0.0068
56K
R575
C568
470K 0.0068
R577 150K
R579 C571
15K 0.022
R580
180K
G
PLAY
-
TAPE
M
MOTOR
+
SOLENOID
CASSETTE
SOLENOID
TAPE MECHANISM
H
PWB-D
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
1
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C706
C707
47/50 1/50
D703
DS1SS133
+B
R760
R759
R758
R756
+B
IC561
KIA4558P
OPE AMP.
R563
R566 270
D561
220K
2 4 DS1SS133
3 1
C563
R568
2.2/50
220K
5 8
6
7
R576
2 4
2.2M
3 1
C570
D563
0.022
DS1SS133
5
8
6 7
+B
IC561
KIA4558P
OPE AMP. ZD561
DZ6.2BSB
FFC702
T 2 PLAY D709
1
1
DS1SS133
GND
2
1
T 2 RUN
3
2
3 +MTR
4
4
SOL 2 D710
5
5
DS1SS133
SOL 1
6
6
F_REC
7
7
T 1 RUN
8 8
8
CNS702
PH
2 3
Figure 28 SCHEMATIC DIAGRAM (7/9)
FL DISPLAY
49 48 47 44 43 42 41 40 39 38 37 36 35 34 33 32
P10
R745 1K
R744 1K
R743 1K
R742 1K
10K
R740 1K
10K
R739 1K
10K R738 22K
10K R736 1K
R735 1K
T1
RUN
-B
R762
10K
Q706
M12 V
KTA1273 Y
R777
10K
Q707
KTA1271 Y
R778
C712
10K
47/50
Q708
R779
KTA1271 Y
10K
4
– 28 –
FL701
31 30 29 28 27 26 25 24 23 16 15 14 13 12 11 10 9 8
81 82 83 84 85 86 87 88 89 90 91 92 93 94 96 97 98
95
80
VLOAD
79
78 P11
DSA_STB
P12
77
76 P13
T_T1/T2
75 P14 IC701
REC/PLAY
P15
74
RES OUT
IX0401AW
73 P16
SYSTEM
P17
72
MICROCOMPUTER
P18
71
70 P19/DIST0
P20/DIST1
69
P21/DIST2
68
67 P22/DIST3
RDS-READY/ESS_DO
66
65 RDS-RDCL/ESS_DI
RDS-RDDA/ESS_STB
64
CD CLK
RDS-RST/ESS_ACK
63
62 NO USE / MPEG_POW
CD DO
KARAOKE LATCH
61
NO USE
60
59 DISTOUT/SW OUT 54 PLAY SW_B 28
SPEANA2
LCK 0 NO USE 29 SPEANA1
58 53
CD CLAMP
SPEANA0
57 MIC SW 52 30
SW
FPB
56 51 T2 RUN
O/C SW/
FPA
55 DSA DATA
TUN SM
54
DSA_ACK
53
52
51
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
LED701
SLR342VCJ
R766
10K
R767
10K
R768
10K
5 6
7 6 3 2
C7
1/5
99 100
1
VDD
2
–20 dB
3
R70
4
T-BIAS
R70
5
R70
6
R70
7
R70
8
DRF
R70
9
WRQ
R70
10
RESET
11
X2
12
X1
Vpp/IC 13
XL
14
XT2
4.1943
SPAN 15
16
VDD
R709
17
R710
CD DI 18
R711
19
R712
20
CD CE
R713
21
CE
R714
22
CLK
R715
23
DI
R716
DO 24
AVSS
25
R717
26
R73
27
28
29
30