Sharp CD-XP300 - Compact Stereo System Service Manual page 28

CD-XP300/CD-XP3300
A
B
C
D
E
FFC701
19
F
1
TAPE MECHANISM
PWB-F
PH
TAPE
G
MOTOR
-
M
+
SOLENOID
SOLENOID
PLAY
F. PLAY
CASSETTE
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 18.
1
DISPLAY PWB-B1
C707
1/50
C706
47/25
R752
33
+B
19
CE
18
DO
17
CLK
16
DI
15
+B_PROTECT
14
LVL_DET
13
D_GND
12
S_MUTE
11
T_T1/T2
10
REC/PLAY
9
T_BIAS
8
M_+13V 7
A+10V
6
SW_5V 5
+B
UNSW5.6 4
SP_DET 3
2
SP_RLY
–20dB
1
FFC702
1
T2_PLAY SW
1 1
GND
2
2
T2 RUN
3
3
DS1SS133
+MTR
4 4
SOL2
5 5
SOL1
6
6
F_REC
7
7
T1 RUN
8
8
8
2
Figure 28 SCHEMATIC DIAGRAM (7/10)
R794
1.5
45 44 43 42 41 40 39 38 37 36 35 34 33 32
R792
100K
R793
1K
Q705
KTC3199 GR
R738
47K
R772
10K
R770
10K
MOTOR
DRIVER
D709
DS1SS133
D710 C712
47/25
R740
4.7K
3 4
– 28 –
FL701
FL DISPLAY
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
80
79
S13
78
80 S12
77 S14
VLOAD
79
76
S15
75 S16
74
S17
73 S18
S19
72
S20
71
70 S21
DIST
69
68
67
66
65
MICROCOMPUTER
64
63
62
61
60
59
52
T1 RUN
58
T2 RUN
51
57
56
R746
MIC SW
55
1K
O/C_SW
54
R734
53
1K
52
51
R735
1K 50 49 48 47 46 45 44
R732
1K
+B
FPA/FPB
+B
R780
10K
Q706
KTA1273 Y
+B
R777
10K
Q707
KTA1273 Y
+B
R778
10K
+B
Q708
R779
KTA1273 Y
10K
Q707, Q708: SOLENOID DRIVER
5
11 10 9 8 7 6 5 4 3 2
100
1
R76
2
3
VDD 1 R70
T-BIAS
4
–20dBATT
2
R70
T_T1/T2 5
R70
REC/PLAY 6
R70
CD RESOUT
7
R70
WRQ
8
SPAN
9
R70
RESET 10
X2
11
X1
12
VPP/IC
13
IC701
4.19
14
IX0496AW
DRF
15
SYSTEM R769
VDD
16
R70
CD CLK
17
R71
CD DI
18
R71
CD DO 19
R71
CD CE 20
R71
CE
21
T2_PLAY SW/
28
R71
FPA/FPB SW CLK
22
R71
PROTECT 29
DI
23
LVL_DET R71
30
DO
24
AVSS 25
DISC_NO SW/ R71
26
DSA DATA
27
R73
28
29
30
43 42 41 40 39 38 37 36 35 34 33 32 31
R765
4.7K
R761
10K
R768
LED701
10K
SLR342VCJ
R767
10K
R766
10K
6