Sharp CD-BA2600 - Troubleshooting and Maintenance; General Troubleshooting Guide for Unit Issues

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CD-BA250/CD-BA2600
Figure 27 SCHEMATIC DIAGRAM (8/9)
7
8 9 10 11 12
5V BACK UP
2
1
3
P05 P04 P03 P02 P01 G01 G02 G03 G04 G05 G06 G07 G08 G09 G10 G11
F F F
27 26 25 24 23 16 15 14 13 12 11 10
9876
321
DISC_NO SW
WRQ(DSP)
CLAMP SW
CD DO
CD DI
CD CE
CD CLK
DRF
RES OUT
TO CD SERVO PWB
P21 12-B
123456789
123456789
100
99
98
97
96
95
9493
92
91
90
89
88
87
86
85
11
10
9
8
7
6
5
4
3
2
1
T-BIAS
T_T1/T2
X2
RESET
WRQ
P1 P2 P3 P4 P5
DSA_STB
REC/PLAY
RES OUT
G11 G10
G9 G8 G7 G6 G5 G4 G3 G2 G1
VDD
-20dB
DRF
A
TCH
EG_POW
W
OUT
ESS_DO
S
S_DI
SS_STB
S
_ACK
25
24
23
22
21
20
19
18
17
16
15
14
13
12
VDD
X1
CD CE
CD DI
SPAN
CE
Vpp/IC
CD CLK
CD DO
CLK
DI
DO
AVSS
XT2
P-IN
VF1
VF2
–VP
SMUTE
SP_RLY
A_GND
–15V
SW_5V
UN_SW 5V
SP_DET
M_GND
SPA_SIG
–20dB
M_+12V
22
20
21
13
14
15
17
23
24
24
19
16
18
11
12
10
D_GND
REC/PLAY
T_T1/T2
T_BIAS
DI
CE
CLK
DO
TUN SM
1
1
2
3
4
9
8
7
6
5
30
29
28
27
26
O/C SW/
DSA DATA
TUN SM
DSA_ACK
SPEANA2
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
44 43 42 41 40 39 38 37 36 35 34 33 32 31
TIMER LED VDD
_
46 45
321
CNP701
TO
MAIN PWB
P23 12-D
FFC701
+B
+B
+B
+B+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+
B
+B
+B
+B
+B
+B
+B
-B
+B
+B
+B
+B
+B
+B
+B
+B
+B
-B-B
-B
R725
1K
CNS701
RD07
3.9K
RD06
2.7K
RD05
2.2K
RD04
1.5K
RD03
1K
RD30
5.6K
RD16
3.9K
SW717
VOLUME
UP
SW718
VOLUME
DOWN
RD17
180K
D711
DS1SS133
R774
10K
R773 1K
D713
DS1SS133
C714
3.3/50
R782
100K
D715
DS1SS133
Q709
KRC102 M
C702
220/10
C703
0.022
C701
1/50
R781
47K
C715
0.01
R765
4.7K
R718
1K
R719
1K
R720
1K
R721
1K
R724
1K
R726
2.2K
R727
2.2K
R728
2.2K
R729
2.2K
2
LED701
IC701
IX0399AW
SYSTEM
MICROCOMPUTER
D712
DS1SS133
L701
100µH
D714
DS1SS133
C716
0.022
RX701
REMOTE
SENSOR
R766
10K
R768
10K
R767
10K
BI701
CNP8
CNS8
R783
100
C717
47/50
SW727
STOP
RD01
680
SW701
POWER
RD02
820
SW702
CLOCK
SW703
TIMER
RD09
10K
RD08
5.6K
SW732
TUNER
RD29
100K
SW731
VIDEO
RD28
33K
SW730
TUNING
UP
RD27
18K
SW716
EQUALIZER
RD14
820
SW715
X-BASS
RD13
680
SW725
FAST
FORWARD
RD21
1.5K
SW726
PLAY
RD23
2.7K
SW723
MEMORY/
SET
RD26
10K
SW724
REWIND
RD25
5.6K
RD22
2.2K
RD24
3.9K
SW712
DISC
SKIP
RD10
18K
RD12
100K
SW713
OPEN/
CLOSE
RD11
33K
RD15
1.8K
C705
18P
R710 1K
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
SW714
DIMMER
R705 1K
R708 1K
R704 1K
R709 1K
XL700
4.194304MHz
C704
15P
SPEANA0
SPEANA1