Read Sharp CD-BA250 (serv.man6) Service Manual online
– 29 –
CD-BA250H/CD-BA2600H
Figure 29 SCHEMATIC DIAGRAM (8/9)
7
8
9
10
11
12
P04
P03
P02
P01
G01
G02
G03
G04
G05
G06
G07
G08
G09
G10
G11
F
F
F
100
99
98
97
96
95
94
93
92
91
90
89
88
87
6
1
P1
P2
P3
P4
G11
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
VDD
_POW
T
_DO
DI
STB
K
O/C SW/
DSA DATA
TIMER
LED
T2 RUN
30
29
28
SPEANA2
SPEANA0
SPEANA1
54
53
52
51
PLAY SW_B
SW
CD CLAMP
NO USE
5 44 43 42 41 40
39 38 37 36 35 34 33 32 31
30
29
AVDD
KEY 2
KEY 1
KEY 0
P_IN
REMOCON
VSS
SMUTE
T_SOL_A
T_MOTOR
T_SOL_B
AVref
JOG 0
JOG 1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
T-BIAS
T_T1/T2
VDD
X1
X2
RESET
CD CE
CD DI
WRQ
SPAN
CE
DSA_STB
REC/PLAY
RES OUT
Vpp/IC
CD CLK
CD DO
CLK
DI
DO
AVSS
TUN SM
DSA_ACK
–20 dB
DRF
XT2
DISC_NO SW
WRQ(DSP)
CLAMP SW
CD DO
CD DI
CD CE
CD CLK
DRF
RES OUT
CD SECTION
1
2
3
6
7
8
9
10
11
12
13
14
15
16
23
24
25
6
8
5 V BACK UP
3
2
1
3
2
1
P-IN
P_IN
UN_SW_5 V
AC_RLY_CONT
GND
SW_5 V
UN_SW_+V
VF1
VF2
–VP
SMUTE
SP_RLY
D_GND
A_GND
–15 V
SW_5V
REC/PLAY
T_T1/T2
T_BIAS
UN_SW 5V
DI
CE
CLK
DO
TUN SM
SP_DET
M_GND
SPA_SIG
–20 dB
M_+12 V
RDS-READY
RDS-RDCL
RDS-RDDA
RDS-RST
3
4
24
27
19
26
16
18
11
12
20
21
9
10
1
2
28
22
25
23
8
7
6
5
13
14
15
17
1
4
5
6
2
3
1
4
5
6
2
3
-B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
-B
TO CD SERVO PWB
P23 12-B
CNP8
CNS8
9
1
5 4
3
7
2
6
8
9
1
5 4
3
7
2
6
28
1
CNP701
TO
MAIN PWB
P25 12-D
TO
POWER PWB
P26 6-G
FFC701
CNP803
2
1
3
R774 10K
CNS701
RD30
5.6K
RD16
3.9K
SW717
VOLUME
UP
SW718
VOLUME
DOWN
RD17
180K
SW714
DIMMER
SW715
X-BASS
SW716
EQUALIZER
RD15
1.8K
C702 220/10
C703 0.022
C701
1/50
R781
47K
C715
0.01
R765 4.7K
BI803
CNS803
R718 1K
R719 1K
R720 1K
R721
1K
R724 1K
R726 2.2K
R727 2.2K
R728 2.2K
LED701
SLR342VCJ
D711
DS1SS133
D712
DS1SS133
D713
DS1SS133
L701
100
µ
H
D714
DS1SS133
C716 0.022
RX701
REMOTE SENSOR
N63H380A
Q709
KRC102 M
D715
DS1SS133
R782 100K
C714 3.3/50
R766
10K
R768
10K
R767
10K
BI701
R737 1K
C719 47/50
C718 0.047
D717
DS1SS133
IC905
AN78L05
CONSTANT
VOLTAGE
REGULATOR
R783
100
C717
47/50
SW727
STOP
RD01
680
SW701
ON/
STAND-BY
RD02
820
SW702
CLOCK
SW703
TIMER
RD09
10K
RD03
1K
RD04
1.5K
SW704
RTY
RD05
2.2K
SW705
EON
RD06
2.7K
SW706
ASPM
RD07
3.9K
SW707
DISPLAY
MODE
RD08
5.6K
SW732
TUNER
TUNER
RD29
100K
SW731
VIDEO
RD28
33K
SW730
TUNING
UP
RD27
18K
RD14
820
RD13
680
SW725
FAST
FORWARD
RD21
1.5K
SW726
PLAY
RD23
2.7K
SW723
MEMORY/
SET
RD26
10K
SW724
FAST
REWIND
RD25
5.6K
RD22
2.2K
RD24
3.9K
SW712
DISC SKIP
RD10
18K
RD12
100K
SW713
OPEN/
OPEN/
CLOSE
RD11
33K
C705
18P
R710
R711 1K
R712 1K
R713 1K
R714 1K
R715 1K
R716 1K
R707 1K
R702 1K
R703 1K
R717 1K
R706 1K
SW729
REC/PAUSE
RD20
1K
RD19
820
RD18
680
SW720
CD
SW721
TAPE
SW722
TUNING
DOWN
R705 1K
R708 1K
R704 1K
R709 1K
XL700
4.194304 MHz
C704
15P
1K
+B
IC701
IX0401AW
SYSTEM
CROCOMPUTER
R773 1K
R725 1K
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