CD-BA250 (serv.man5). Part 2 - Block diagrams (19-21) - Sharp Audio Service Manual (repair manual)

cd-ba250 (serv.man5) service manual
Model
CD-BA250 (serv.man5)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
89.78 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Part 2 - Block diagrams (19-21)
File
cd-ba250-sm5.pdf
Date

Read Sharp CD-BA250 (serv.man5) Service Manual online

– 19 –
CD-BA250H/CD-BA2600H
 Figure 19 BLOCK DIAGRAM (1/3)
+5V 
CNS4
BI4
CNP4
M3
T/T UP DOWN
LOADING 
+3.3V 
TO  DISPLAY  SECTION
TO  MAIN  SECTION 
CONSTANT
VOLTAGE
Q2
LASER
DRIVER
+3.3V 
Q1
+5V 
PICK  UP  UNIT
IC1
LC78645E
CD SERVO
VVDD
LDD
LDS
M
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
CNP8
CNP7
TRACKING  COIL 
FOCUS  COIL
SW4
PICKUP
IN
M2
SLED
MOTOR 
M1
SPINDLE
MOTOR
M
M
R-CH
Q3
XVDD
RVDD
LVDD
ADAVDD
RFVDD 
XL1
33.8688 MHz
OC.  DISC  NO 
CLAMP  SW
CD  RES
CLK 
DI
DO
CE
DRF 
WRQ 
+B6(+5V) 
+B6(+5V) 
DGND
L-CH
AGND
VCC3
VCC2
VCC4
VCC1
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
WRQ
DO
DI
CLK
CE
TIN2
TIN1
FIN2
FIN1
TD0
FD0
SPDO
SLDO
CONT5
CONT2
CONT3
CONT4
RCHO
RVSS
LVSS
LCHO
80
42
79
75
20
5
40
18
24
23
14
8
21
22
29
35
41
47
46
7
10
9
8
7
15
1
2
17 25
42
41
83
39
4
7
6
5
16
82
26 27
3
1
6
4
5
2
3
1
6
4
5
2
3
1
6
4
5
2
5
4
71
61
62
63
69
57
56
55
51
50
40
37
19
28
26
23
22
21
3
2
7
1
6
8
9
6
1
5
4
3
2
45
43 44
25
70
64
65
66
48
49
18
CD-BA250H/CD-BA2600H
– 20 –
 Figure 20 BLOCK DIAGRAM (2/3)
FM  OSC
AM  LOOP
ANTENNA
L341
BALUN
SO302
FM
ANTENNA
Q301
IC101
AN7345K
PLAYBACK  AND  RECORD
/PLAYBACK  AMP.
JK690
VIDEO/AUX IN
R
L
FM
+B
+B4
CLK
+B4
AM  IF 
CNS601
ATT
–20 dB
Q101~
Q104 
–B2
+B4
IC7
IX040
(2
IC561
IC562
KIA4558P
OPE AMP.
Q107
Q108
Q603
Q604
Q612
Q613
10.7 MHz
450 kHz
REC/PLAY
CLK
CE
DI
DO
DI
CE
MO/ST
SWITCHING
+B4
FM/AM 
IC302
LC72131
PLL(TUNER)
OUT
FM/AM
L
R
BIAS
T1/T2
MUTING
P.B.
REC
AC  BIAS
L
L
R
R
R
L
TAPE
TUNER
CD
PB
CNP7
FROM  CD  SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
Q110
SWITCHING
Q109
OSC
BIAS Q111
L103
Q105
Q106
REC  PB  HEAD
TAPE  2
PB  HEAD
TAPE  1
R-CH
L-CH
R-CH
L-CH
IC601
LC75341
AUDIO  PROCESSOR
+B4
R
L
REC
R
L
L  NF
R  NF
ALC
REF
R  REC
L  REC
POP  REDUCE
R  NF
L  NF
SWITCHING
L(T2)
R(T2)
R(T1)
L(T1)
R
L
FM/AM
MPXIN 
STEREO
AM  RF  IN
AM  OSC  IN
FM
Q360
VT
OSC 
X352
4.5 MHz
AM  BAND
COVERAGE 
AM  TRACKING 
T303
T306
X351
456 kHz
MO/ST
VCO
DET
FM
FM+B
GND
AM  IF
CF351 
FM/AM  IF  MPX.
IC303
LA1832S
FM IF DET./
FM MPX/
AM IF
AM  MIX
CF352 
T351
CF303
CF301
FE301
TA7358AP
FM  FRONT  END
24
22 21
4
3
2
6
8
5
7
1
21
7
8
4
1
22
3
4
24
2
1
8
18
17
3
9
10
18
11
16
3
15
10
9
7
23
14
12
13
1
2
20
21
19
7
18
10
8
17
13
4
5
2
24
23
6
9
16
14
12
15
1
5
14
3
4
21
7
9
8
5
17
6
2
1
20
22
11
17
16
15
13
14
12
15
16
23
4
7
H/N
P.B
REC
T1/T2
T1/T2
HIGH
NOR/
16 15 14 13
11 10 9
2 4
3
8
READY
MPXIN
VSSA
VDDA
XOUT
RDCC
RDDA
RST
VDDD
VSSD
XIN
XT21
4.332 MHz
ICT21
LC72723
RDS DECODER
L354
LOW PASS
FILTER
QT21 AMP.
– 21 –
CD-BA250H/CD-BA2600H
 Figure 21 BLOCK DIAGRAM (3/3)
+B7
UNSW  5 V
SW  +5 V
+B5 
D806
Q801
IC905
AN78L05
VOLTAGE  REGULATOR
D802-805
PT802
SUB  POWER
TRANSFORMER
PT801
MAIN  POWER
TRANSFORMER  
RL801
L801
LINE
FILTER
Q914
Q907
Q908
AC 230 V, 50 Hz
–VP
VF2
VF4 
Q901
+B6
SW  5 V
IC904 
KIA7805AP
CONSTANT VOLTAGE REGULATOR
+B4
+B3
+B1
–B1
-B2
+B6 
+B3
+B7
+B4
Q701-Q703
R
L
+B5
RX701 
REMOTE
SENSOR   
4
IC701
IX0401AW
(2/2)
1
2
8P
MP.
D902~D905 
D901
RY914
JK701
HEADPHONES
M901
FAN  MOTOR
M
Q906
Q709
Q902
Q903
Q905
Q904
Q603
Q604
Q612
Q613
IC903
KIA7810AP
VOLTAGE REGULATOR
IC902
KTC2026
IC901
STK4029S
POWER AMP.
F903
T2A  L 250V
F904
T2A  L 250V
F902
T4A  L 250V
F901
T4A  L 250V
+Vcc
–Vcc
L-OUT
R-OUT
CLK
MAIN
AC  POWER
SUPPLY  CORD
REC/PLAY
VLOAD
RESET
GROUND
+B7
+B7
+B7
+B7
+B5
VDD
VDD
VDD
SP.  DET.
CE
DI
DO
XL700
4.194304 MHz
-
BIAS
T1/T2
AVDD
KEY
SW701-SW707
SW712-SW718
SW720-SW727
SW729-SW732
TO  CD
SECTION
IC701
IX0401AW
SYSTEM
MICROCOMPUTER(1/2)
FL701
FL DISPLAY
42
43
44
46 45
47
31
23
89
80
44
33
78
49
48
47
13
93
16
14
92
90
1
2 4
5 6
7
15
1
29
28
9
67
6
1
3
2
3
2
1
7
1
13
8
10
100
33
31
11 12 13
9 10
15 16 17
20 21
23
22
24
79
64
54
52
53
51
48
49
40
39
36
35
34
T.F.
63
66 65
55
50
A+10 V
M+12 V
Page of 3

Download Sharp CD-BA250 (serv.man5) Service Manual (Repair Manual)

Here you can read online and download Sharp CD-BA250 (serv.man5) Service Manual in PDF. CD-BA250 (serv.man5) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp CD-BA250 (serv.man5) System. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.