Sharp CD-BA250 (serv.man10) Service Manual ▷ View 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
CD-BA250H/CD-BA2600H
– 30 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
Figure 30 SCHEMATIC DIAGRAM (9/9)
34
32
26
31
33
30
28
27
29
35
25
24
23
22
FM SIGNAL
AM SIGNAL
MAIN PWB-A1(3/3)
AM ANT.
T351
AM IF
AM IF
24
23
22
21
20
19
18
17
16
15
14
13
MO/ST
REG
AM IF IN
GND
SD
STEREO
FM DET
VCC
IF OUT
PHASE
PHASE
(FM/AM)
(FM/AM)
L-CH OUT
R-CH OUT
MPX IN
MPX VCO
FM/AM OUT
VSM
AM LOW CUT
AM RF IN
AM OSC IN
FM AFC
AM OSC OUT
AM MIX OUT
FM IF IN
12
11
10
9
8
7
6
5
4
3
2
1
22
21
20
21
20
19
18
17
16
15
16
15
14
13
12
12
SD
VSS
AOUT
AIN
PD
VDD
FM IN
AM IN
X OUT
IF IN
11
10
9
8
7
6
5
4
3
2
1
CONT
IF
FM/AM
FM/AM
ST IND
MO/ST
DO
CL
DI
CE
X IN
8
7
6
5
4
3
2
1
F OUT
IF OUT
VCC
VT
GND
GND
GND
ANT
RDS_RDDA
RDS_RDCL
RDS_READY
RDS_RST
GND(A_GND)
TUN_SM
DI
DO
CE
TUN_R
CLK
TUN_L
A+10 V
GND(D_GND)
16 15
14 13 12
11 10
9
8
7
6
5
4
3
2
1
RDCL
RDDA
RST
MODE
VDDD
VSSd
VREF
XOUT
TEST
CIN
FLOUT
VDDA
MPXIN
XIN
VSSA
READY
RDS-ID/
1
2
2
1
AM LOOP
ANTENNA
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
ICT1
LC72723M
1
2
3
1
1
2
2
3
3
IC302 LC72131
Q360: SWITCHING
TO MAIN SECTION
P25 12-F
RT29
1K
RT30 1K
RT27
1K
RT28
1K
RT21
10K
CT24
47/16
RT22
390
RT23
390
ZDT21
DZ5.1BSB
CT30 0.022
CT32
47/16
CT31
47/16
CT28
0.022
CT26
560P
RT26
56K
RT24
56K
RT25
10K
CT29
0.022
QT21
KTC3199 GR
LT21
2.2
µ
H
CT22
0.022
XT21
4.332MHz
CT25
22P
(CH)
CT23
22P(CH)
CT21
47/16
ICT21
LC72723M
RDS DECORDER
CT27 0.022
LT22
2.2
µ
H
R372 1K
IC302
LC72131
PLL(TUNER)
R370 1K
C364 2.2/50
IC303
LA1832S
FM IF DET./FM MPX./AM IF
R365
10K
C345 0.022
S0302
FM ANTENNA
TERMINAL
Q301
2SC380 O
C321 100/16
R387 5.6K
C370
1/50
R393
1K
R376
1K
R355
3.3K
R359
1.8K
D304
DS1SS133
D303
DS1SS133
C301
0.01
C384
0.001
0.001
FE301
FM FRONT END
C369 27P C374 0.018
ZD351
DZ5.1BSB
C396 100/10
C395 0.022
R381
10K
X352
4.5MHz
R363
47K
C363 0.022
R391
270
Q360
KTA1266 GR
R385
5.6K
R392 270
C372
1/50
R364
47K
CF302
CT1 0.01
CF301
R345 4.7K
C347 0.022
C355
22P
R388
3.9K
L341
BALUN
C332
0.022
C331
0.047
C340
0.001
C330
15P
C341
0.022
L342
2.2
µ
H
R369 15
C371
1/50
R378 1K
R386
22K
C388
0.001
R356
1K
C368
1/50
C398
100/10
C356
0.001
C357 2.2/50
C358 1/50
C338
0.001
D301 DS1SS133
D302 DS1SS133
CNP302
CF352
R352
1K
R346
330
R347
6.8K
C361
0.022
C362
3.3/50
VD301
KDV147B
R382
150
L354
LOW PASS
FILTER
C353 0.022
C399
0.022
C373
0.018
X351
456KHz
R344 470
C397
0.022
C382
15P(CH)
C366 0.001
R350
2.7K
2.7K
R357
470K
R323
68K
R383
5.6K
C391
47/25
R384
5.6K
R395
47K
C386
330P
R360
4.7K
R377 47K
C334
22P(CH)
C335
560P
L351
100
µ
H
C385
0.01
C380
10/50
R379
2.2K
C323
0.022
C393
1/50
R380
1.5K
R373 1K
R374 1K
C387
0.022
C392
0.001
C394
47/16
C352 10/50
C350 0.022
R351 5.6K
R358
3.9K
C342
0.022
C365 0.022
C367
1/50
R353
270
CF351
C354 0.022
R348 680
R349
33
C381
12P(CH)
R336
10K
TP301
TP302
TP
T303
AM TRACKING
AM BAND
COVERAGE fL
COVERAGE fL
T306
AM
OSC.
– 31 –
CD-BA250H/CD-BA2600H
Figure 31 WIRING SIDE OF P.W.BOARD (1/7)
7
8
9
10
11
12
When Servicing, pay attention as the
area enclosed by this line ( ) is
directly connected with AC main voltage.
area enclosed by this line ( ) is
directly connected with AC main voltage.
LUG1
LUG2
L801
PT802
SUB POWER TRANSFORMER
R804
FROM
DISPLAY
PWB
P34 3-H
C805
D801
C803
R801
D806
R802
Q801
CNS803
CNP803
R803
D802
D803
D804
D805
C802
RL801
C801
R984
R983
C908
D906
C909
C911
R904
D908
R978
R977
D907
ZD903
ZD901
C913
R905
R907
R906
C912
Q901
F904
T2A L 250V
F903
T2A L 250V
F901
T4A L 250V
F902
T4A L 250V
PT801
MAIN POWER TRANSFORMER
D903
D904
D905
D902
C906
C905
ZD902
C902
D901
C901
CNP902
CNS902
C910
TRANSFORMER PWB-A3
AC POWER
SUPPLY CORD
AC 230 V, 50 Hz
T.F
POWER PWB-A2
1
2
3
4
5
6
7
8
9
B C E
10
FROM
MAIN PWB
P33 11-F
6
5
4
3
2
1
5
4
3
2
1
BL
BR
E C B
B R
COLOR TABLE
R D ( R )
O R
Y L
G R
B L
V L
G Y
W H ( W )
B K
P K
BROWN
RED
ORANGE
YELLOW
GREEN
BLUE
VIOLET
GRAY
WHITE
BLACK
PINK
CD-BA250H/CD-BA2600H
– 32 –
Figure 32 WIRING SIDE OF P.W.BOARD (2/7)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
JK690
VIDEO/AUX IN
SO302
FM ANTENNA
TERMINAL
R-CH
L-CH
FM
75 OHMS
AM LOOP
ANTENNA
2
1
1
2
1
1
1
2
RD
BR
R-CH
L-CH
1
1
2
3
4
5
6
7
7
8
2 3
1 2 3
E
C
B
B
B C E
C
E
4 5 6 7 8 9
10 11
12
22 21 20 19 18 17 16 15 14 13
1 2 3
1
B C E
E
E
C
B
C B
1 2
B
B C E
E C
B
C
E
B
3
2
1
1
1
2
3
C
E
E
C
B
B
C
E
B
C
E
2
1
3
2
3
4 5 6 7 8 9
10 11 12
24 23 22 212019 1817 16 15 1413
1
2
3
4
5
6
7
8
9
16
15
14
13
12
11
10
1
24
1
2
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
C E
TP302
TP301
C301
C346
D303
D304
C348 C302
R399
R349
R347
CF301
R346
R344
C345
R345
R369
C347
C384
X352
C382
Q301
R348
C381
C394
C397
C341
R381
L342
FE301
R373
R374
R372
R379
C387
R378
C392
R377
C380
L351
R393
Q360
R382
C385
C393
R380
C386
R359
R360
R388
R376
R387
R384
R386
C391
R385
R383
R392
T351
C398
CF351
C352
CF352
C396
C395
R391
R395
ZD351
C370
C388
C356
CT29
RT26
QT21
RT25
RT24
CT28
RT23
RT22
LT22
CT31
CT27
XT21
ZDT21
CT21
CT22
CT24
CT30
CT25
CT23
CT26
RT27
RT21
LT21
C610
R606
C608
C606
C607
C652
C651
C601
C603
C650
R6
R602
C609
R603
R601
RT28
RT30
RT29
RT29
CT32
R363
R364
C373
C374
C372
R355
C355
C358
C357
R353
C354
C353
R352
C350
C366
C399
C389
R351
IC303
R370
X351
R356
C371
C368
R357
C363
R350
C365
C364
R358
C367
CF302
R365
C342
C361
C362
C321
C334
R336
C335
C332
R323
T306
D301
D302
L341
CNP302
CT1
C693
C323
T303
C338
C340
C330
C331
D690
VD301
R691
C691
R693
D691
JK690
C964
C961
C959
C965
R620
R617
R617
C690
R690
R692
C637
Q906
CNP971
R970
C968
R971
R972
D915
R963
C957
C955
Q914
C967
R973
R969
R615
R605
R613
Q601
R621
R611
C635
C639
Q603
R619
Q903
C947
R953
R931
C935
R951
LG1
R935
Q602
C636
R610
R614
R612
C638
Q604
R616
R604
R618
Q905
Q904
D913
Q908
Q907
C969
D911
C939
C937
R939
R937
C933
R933
C931
C941
C945
R957
R943
C940
C946
C949
R930
D912
R952
C930
C934
R954
C948
Q902
R903
R908
R932
C932
R936
C932
R936
R938
C936
R934
C938
C936
R934
C938
C942
R942
R944
ZD904
C915
R909
C916
C918
IC902
C903
R902
R901
R956
R940
R958
IC901
C952
C950
R950
R946
R948
R947
R945
R949
R955
R941
C953
C951
RL914
D914
R959
R968
R967
R961
L920
C963
L921
C962
R960
C956
C954
C960
C958
R962
CNS971
SO901
SPEAKER
TERMINAL
M901
FAN MOTOR
IC302
C369
L354
R370
C640
ICT1
Click on the first or last page to see other CD-BA250 (serv.man10) service manuals if exist.