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CD-BA1500 (serv.man7). Part 2 - Notes on diagrams, Block diagrams, Schematic diagrams - Sharp Audio Service Manual (repair manual). Page 14

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– 33 –
CD-BA1500H
7
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11
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Figure 33 SCHEMATIC DIAGRAM (10/10)
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23
22
21
20
19
18
17
16
15
14
13
12
11
10
9 
8 
7 
6 
5 
4 
3 
2 
1 
3
1
4.8V
0V
0V
5.9V
0V
5.9V
4.2V
SPA_SIG
M_GND
SP_DET
M10V
DO
5V  BACK  UP
F
CLK
CE
DI
M_10V
AC_RLY  CONT
UN_SW  5V
RES  OUT
T_BIAS
T_T1/T2
REC/PLAY
DRF
+5V
-15V
A_GND
D_GND
SP_RLY
SMUTE
  -VP
VF2
VF1
CD  CLK
CD  CE
CD  DI
CD  DO
CLAMP  SW
WRQ(DSP)
CD  INT
F
F
G11
G10
G09
G08
G07
G06
G05
G04
G03
G02
G01
P01
P02
KEY  0
KEY  1
KEY  2
1
2
3
4
5
6
7
8
9
10
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
47 46 45 44 43 42 41
39 38 37 36 35 34 33 32 31
2 3
1
2
1
2
3
4
5
6
7
8
9
10
S-BUSY
SP_RLY
USE
/SW  OUT
W_A
AVref 
SPEANA1
XT2
DRF
P
T_SOL_B
VDD
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
1
2
3
E  LATCH
W_B
AC
  
RLY
_
CONT
 
VDD
TIMER  LED
T_MOTOR
T_SOL_A
SMUTE
VSS
REMOCON 
NO
SYS  STOP
SPEANA0
SPEANA2
NO  USE
M-BUSY/TUN  SM
AVSS
DO
DI
CLK
CD  DO
CD  CLK
VPP/IC
RES  OUT
REC/PLAY
CE
0
P2
P1
CD  INT
WRQ
CD  DI
CD  CE
RESET
AVDD
X2
X1
VDD
T_T1/T2
T-BIAS
40
CNP12
P25  12-F
TO 
CD SERVO PWB
1
23
CNP401
TO MAIN PWB
P27  12-E
2
3
4
5
1
7
8
9
6
12
13
14
15
11 10
16
2
3
4
5
1
7
8
9
6
12
13
14
15
11
17
18
19
10
16
22
23
21
20
CNS701
BI701
CNP702
D621
DS1SS133
D620
DS1SS133
RX701
REMOTO SENSOR
C632
47/25
C631
0.022
C630
10/50
SW628
TUNER
(BAND) 
SW627
VIDEO/
AUX 
R724
100K
SW626
TUNING
/TIME  UP 
R722
33K
SW625
REC/
PAUSE 
R721
18K 
R719
10K 
SW623
STOP
R718
5.6K
R714
3.9K
SW622
PLAY/
REPEAT 
SW621
FAST
FORWARD
R712
2.7K
SW620
REWIND
R709
2.2K
SW619
MEMORY/
SET 
R706
1.5K
SW618
TUNING
DOWN 
R703
1K
SW617
TAPE 
R699
820 
SW616
CD 
R697
680
R695
680
SW611
DIMMER
SW612
X-BASS/
DEMO
SW613
EQUALIZER
SW614
VOLUME
UP 
R698
820 
R701
1K
R707
1.5K
SW615
VOLUME
DOWN
SW610
OPEN/
CLOSE
SW609
DISC
SKIP 
R720
100K
R717
68K
R715
3.9K
R713
2.7K
R710
2.2K
R705
1.5K
R702
1K
SW603
TIMER/
SLEEP 
SW605
EON
SW606
ASPM
SW608
STATION
SW607
DISPLAY
MODE
R700
820
SW602
CLOCK 
SW604
PTY.TI
SEARCH
SW601
POWER
R696
680
R672
10K
R671
10K
R670
10K
R666
1K
R676
4.7K
R675
1K
R674
1K
R673
1K
R669 10K
R668 1K
R667
1K
LED722
59
K
R661 2.2K
R663 2.2K
R664 2.2K
R665 2.2K
10K
R660
10K
Q608
C3199  GR
R685 1K
R686 1K
R687 1K
R688 1K
R689 1K
R690 1K
R691 1K
R692 1K
R693 1K
R694 1K
XL701
C623
18P(CH)
C622
15P(CH) 
R684 1K
R680 1K
R683 1K
R678 1K
R679 1K
C624
0.022
C625
220/10
C621
1/50
C633
10/16
R708
10K 
R716
4.7K
IC704
KIA7042AP
RESET
C629
0.022 
R711
100K
D618
DS1SS133
C628
3.3/50
Q609
KRC102  M
D617
DS1SS133
D616
DS1SS133
C627
0.01
C626
0.1/50
L601
100
µ
H 
R704
47K
R723
100
IC701
IX0329AW
SYSTEM
MICROCOMPUTER
R681 1K
R682 1K
+B
+B
+B
+B
+B
+B
–B
–B
–B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
1
3
2
FC701
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