CD-E250 (serv.man13). Block diagram — Sharp Audio Service Manual (repair manual)

Model
CD-E250 (serv.man13)
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
99.68 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Block diagram
File
cd-e250-sm13.pdf
Date

View Sharp CD-E250 (serv.man13) Service Manual online

CD-E250E
CD-E550E
– 18 –
 Figure 18 BLOCK DIAGRAM (1/4)
V
V
+
Q807,Q808
Q813,Q814
Q821
Q822
Q823
Q801
Q803
Q810
Q811
Q812
Q819
DO
CL
DI
CE
MO/ST
SWITCHING 
SWITCHING 
FM/AM
IC302
LC72131
PLL(TUNER)
FM/AM
OUT 
P.B.
REC
PB
CNP205
FROM
CD SECTION
CNS205
TAPE 2
ERASE
HEAD
TAPE  2
PLAYBACK
HEAD
TAPE  1
R-CH
L-CH
R-CH
L-CH
P.B 
R
L
R
L REC
L  NF
R  NF
ALC
REC
REF
R  REC
L  REC
R  NF
L  NF
SWITCHING 
L(T2)
R(T2)
R(T1)
L(T1)
IC801
AN7345K
PLAYBACK  AND  RECORD
/PLAYBACK  AMP.
R
L
FM/AM
MPXIN
IF OUT
FM IN
AM IN
MUTE
AM  RF  IN
AM  OSC  IN 
AM  OSC
OUT 
FM
Q360
Q802
Q815
Q818
Q804
Q817
Q805
Q816
Q820
Q809
BIAS CONT
SWITCHING 
SWITCHING 
SWITCHING 
SWITCHING 
SWITCHING 
VT
FM  OSC
OSC BUFF
OSC 
X352
4.5 MHz
AM  BAND
COVERAGE
AM  TRACKING
T302
Q302
Q351
FM MUTE
LEVEL
X351
456 kHz
MO/ST
VCO
FM
DET
VCC
GND 
AM  IF 
CF351
DZH05C2+
AM IF
IC303
LA1832S
IC303
LA1832S
FM IF DET./
FM MPX./AM IF
AM  MIX
CF352
T351
FM RF
FM
OSC
L302
CF303
T304
FM IF
FM IF
IC301
TA7358AP
FM  FRONT  END
BF301
CNP301
FM
ANTENNA
AM LOOP
ANTENNA
22
3
3
9
8
10
18
1
2
20
19
18
10
17
13
21
24
23
6
9
16
14
12 11
15
5
1
3
8
4
3
2
1
3
2
1
21
7
9
8
5
6
21
2
1
20
22
11
17
15
16
9
6
5
7
13
14
12
15
16
23
24
4
10
STEREO
SD
7 6
+
+B3
+
DGN
+
+
+B2
+B2
+B2
+B2
+B2
FM
4
T306
L303
VR351
17
FRO
DISPLAY 
CNS2
FROM
DISPLAY SECTION
CNS901
CNS803
M
M801
TAPE
MOTOR
SW801
INITIALIZE
SW803
REC
SOL801
SOLENOID
TAPE 1
SW802
INITIALIZE
SOL802
SOLENOID
CF302
RECORD/
PLAYBACK HEAD
B.P.F
Q306
TAPE
TUNER 
CD
1
1
AUX
1
1
Q806
2
3
4
5
6
7
CL
DI
CE
DO
FM ST
SD
5
4
3
2
1
10
9
8
7
6
T1_SOL
T1_RUN_PLUS 
T2_RUN_PLUS 
T_MOTOR 
CH_SW 
BIAS
TAPE_SW 
T2_SOL
REC 
REC/PLAY
PHOTE INTERRUPTER 
PHOTE INTERRUPTER 
U_CON5V
SOLENOID
DRIVER
TAPE MPTOR
DRIVER
SOLENOID
DRIVER
CNP202
CNP803
– 19 –
CD-E250E
CD-E550E
T101
POWER TRANSFORMER
–30 V
SO101
SPEAKER
TERMINAL
CD-E550E ONLY
FRONT
SURROUND
R-OUT
L-OUT
RLY101
VF2
VF2
VF1
VF1
–B2
+B5
+B1
+B2
+B2
–B1
Q206
SYSTEM
MUTE
Q101
Q102
Q103
Q104
Q108
Q109
Q105
Q106
Q203
Q201,202
Q204,205
D905~D908
D901~D904
F903
T1.6A L 250V
F901
CD-E550E:T5A L 250V
CD-E250E:T4A L 250V
F902
CD-E550E:T5A L 250V
CD-E250E:T4A L 250V
+VCC
–VCC
PRE
–VCC
PRE
+VCC
IC101
CD-E550E:STK40207
CD-E250E:STK40205
POWER  AMP.
AC  POWER
SUPPLY  CORD
AC  230-240 V,50 Hz
SO601
VIDEO/AUX IN
7
6
4
1
15
10
11
+B4
IC203
KIA7808API
VOLTAGE
REGULATOR
+B3
DGND
+5.6 V
+5.6 V
IC201
KIA7805API
VOLTAGE
REGULATOR
A_12V
CD_7V
CD+B
+B2
+B3
+B3
IC202
KIA7812API
VOLTAGE
REGULATOR
8
9
12
L
R
JK101
HEADPHONES  
FROM
DISPLAY SECTION
CNS202
FROM
DISPLAY SECTION
CNS102
FROM
DISPLAY SECTION
CNS901
FROM
CD SECTION
CNS204
M
M101
FAN
MOTOR
FAN MOTOR
DRIVER
Q901
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
Q207
Q107
Q208
+B5
+B4
CD_+B
MUTE
SIGAL_LVL
SP_RLY
SP_DETECT
FAN_START
FAN_PRT
CL
CE
DI
L
R
TAPE
TUNER 
CD
IC601
LC75341M
AUDIO  PROCESSOR
21
24
18
17
11
3
15
10
AUX
16
9
7
23
14
12
13
+B2
6
5
4
3
2
1
6
7
5
4
3
2
1
1
2
3
4
5
CL
CL
DI
DI
CE
DO
DO
+7V
D_GND
M_GND
D_GND
5
4
3
2
1
202
CNP204
CNP102
CNP901
 Figure 19 BLOCK DIAGRAM (2/4)
CD-E250E
CD-E550E
– 20 –
 Figure 20 BLOCK DIAGRAM (3/4)
+7V 
+7V 
M402
ROTATE
MOTOR
M401
UP/DOWN LOADING
MOTOR
+
+3.3V
+3.3V 
TO  MAIN  SECTION 
CONSTANT
VOLTAGE
CONSTANT
VOLTAGE
Q411
Q412
Q401,402
Q403,404
Q405,406
Q407,408
LASER
DRIVER
+3.3V
+3.3V
Q409
CD PICKUP  UNIT
IC401
LC78646E
SERVO/SIGNAL CONTROL
VDD
LDD
LDS
M
+
M
CNP405
CNS205
CNS204
TRACKING  COIL 
FOCUS  COIL
SW1
PICKUP IN
SW403
DISC NO.
SW404
DISC 1
NM801
SLED
MOTOR 
NM802
SPINDLE
MOTOR
M
M
XVDD
RVDD
LVDD
RFVDD 
XL401
16.9344 MHz
CD  RES
CL
DI
DO
CE
ROTATE
UP_SW
DOWN_SW
OPEN_SW
DISC NO._SW
DISC 1_SW
CLOSE_SW
DRF 
VWRQ 
MGND
VCC
VCC
IC402
LA6548D
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
VWRQ
DO
DI
CL
CE
TIN2 F
TIN1 E
FIN2 B
FIN1 A
TDO
FDO
SPDO
SLDO
CONT5
CONT4
VDD5
LCHO
80
79
75
20
5
1
MUTE
2
30
VREF
REG_IN
REG_OUT
29
9
7
22
24
41
47
46
38
VVDD
77
10
VREF
11
9
8
7
6
25
21
20
14
15
26
5
11 10
11
8
10 9
6
7
4
5
2
3
1
61
62
63
69
57
56
55
51
50
43
44
40
37
19
6
28
26
25
23
22
21
27
4
12
19
3
1
2
+7V (+B5)
DGND
L-CH
1
5
6
4
AGND
R-CH
3
2
42
RCHO
45
68
64
65
66
DRF
67
48
49
ADAVDD
18
~
~
+
+
+5V
E
VCC
VC
C
A
B
C
F
LD
MD
DISC
UP/DOWN
OPEN/CLOSE
SW401
SW402
– 21 –
CD-E250E
CD-E550E
 Figure 21 BLOCK DIAGRAM (4/4)
TO  MAIN  SECTION 
TO  POWER  SECTION 
Q702,Q703,Q704
RESET
Q701
LED701
G9
VDD3
VDD2
VDD1
VDD4
G1
1
1
2
CNS405
CNS901
CD  RES
CE
ROTATE
UP_SW
DOWN_SW
OPEN_SW
DISC NO._SW
DISC 1_SW
CLOSE_SW
DRF
VWRQ
11
8
10
9
6
7
4
5
2
3
1
1
2
3
4
5
11
3
~
15
12
~
50
51
47
~
38
30
29
IRQ
28
POWER_KEY
27
19
X-BASS/DEMO
KEY2_IN
~
~
P1
P4
GND
89
GND
GND
~
P5
P20
~
31
16
32
33
~
67
68
69
70
71
73
4
5
6
7
74
75
CNS803
8
10
9
6
7
4
5
2
3
1
CNS102
2
1
4
3
6
5
7
CNS202
6
7
4
5
2
3
1
80
82
23
84
79
76
77
78
21 92 93 94 91 88 85
95 96
11 26
97 98 99 100
83
81
52
~
VF1
VF1
VF2
VF2
3.8V
3.8V
–30V
+B3
–B2
+B3
5.6V
+B3
+B3
D_GND
IC701
CD-E550E:IX0065SJ
CD-E250E:IX0058SJ
SYSTEM
MICROCOMPUTER
VFD701
FL DISPLAY
RX701
REMOTE
SENSOR
KEY
SW703~SW710
SW719~SW721
18
16
15
14
17
90
46
72
KEY1_IN
CF2
CF1
KEY
SW711~SW715
SW722~SW724
SW702
POWER
ON/STAND-BY
SW701
X-BASS
/DEMO
X702
8 MHz
DISC_NO_SW
DISC1_SW
DISC_UP_SW
CLOSE_SW
ROTATE
DISC_DOWN_SW
OPEN_SW
CD_CE 
CD_RES
CD_DRF
CD_WRQ
T1_SOL
T1_RUN_PLUS 
T2_TAPE2_SW 
CH_SW 
MOTOR 
T1_RUN_PLUS 
T2_SOL
TAPE_BIAS 
REC_PLAY
REC 
FAN_PRT
FAN_START
SP_DETECT
SP_RELAY
SIGAL_LVL
P_MUTE
CD+B
CH_SW
T2_RUN_PLUS
T1_RUN_PLUS
T2_SOL
T1_SOL
MOTOR
REC_PLAY
TAPE_BIAS
TAPE_SW
REC  SW
FAN_PRT
P_MUTE
SP_RELAY
FAN_START
CD-E550E ONLY
SIGAL_LVL
SP_DETECT
CD+B
SD
FM_ST 
CE
CL
D0
D1
D_GND
SD
FM_ST
CE
CL
D0
D1
RESET  IN  PUT
SYS_STOP
13
12
XT2
XT1
X701
32.768 kHz
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Download Sharp CD-E250 (serv.man13) Service Manual (Repair Manual)

Here you can view online or download Sharp CD-E250 (serv.man13) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp CD-E250 (serv.man13) System. Information contained in Sharp CD-E250 (serv.man13) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).