CD-DP900 (serv.man20). Block diagrams - Sharp Audio Service Manual (repair manual)

cd-dp900 (serv.man20) service manual
Model
CD-DP900 (serv.man20)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
96.3 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Block diagrams
File
cd-dp900-sm20.pdf
Date

Read Sharp CD-DP900 (serv.man20) Service Manual online

– 25 –
CD-DP900H/E
+5V 
CNS4
BI4
CNP4
M3
T/T UP/DOWN
LOADING
MOTOR
+
+3.3V 
TO  DISPLAY  SECTION
TO  MAIN  SECTION 
CONSTANT
VOLTAGE
Q2
LASER
DRIVER
+3.3V 
Q1
+5V(+B7) 
PICKUP  UNIT
IC1
LC78645NE
CD SERVO
VDD
LDD
LDS
M
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
CNP8
CNP7
BI401
BI701
TRACKING  COIL 
FOCUS  COIL
SW4
PICKUP IN
M2
SLED
MOTOR 
M1
SPINDLE
MOTOR
M
M
Q3
XVDD
RVDD
LVDD
RFVDD 
XL1
33.8688 MHz
O/C
CLAMP  SW
CD  RES
CL
DI
DO
CE
DRF 
WRQ 
+6.5V (+B4)
DGND (DRIVER)
+5V (+B8)
VCC3
VCC2
VCC4
VCC1
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
WRQ
DO
DI
CLK
CE
TIN2
TIN1
FIN2
FIN1
TDO
FDO
SPDO
SLDO
CONT5
CONT2
CONT3
CONT4
VDD5
LCHO
80
79
75
20
5
40
18
24
23
14
8
21
22
29
35
41
47
46
38
VVDD
77
10
9
8
7
15
1
2
17 25
42
41
39
38
4
7
6
5
16
28
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
43
44
40
37
19
28
26
23
22
21
3
2
7
1
6
8
9
10
6
8
7
+5V (+B7)
DGND
L-CH
3
5
4
AGND
R-CH
1
2
42
68
25
70
64
65
66
DRF
67
48
49
ADAVDD
18
+3.3V
DISC NO
~
~
ZD1
3.3V
+
+
Figure 25 BLOCK DIAGRAM (1/3)
CD-DP900H/E
– 26 –
RDS
LC72723
ICT21
VDDD
VDDA
RDCL
READY
RDDA
RST
FLOUT 
CIN 
4.332MHz
XT21
TAPE  MECHANISM
ASSY
T1  PLAY 
T2  PLAY 
SOLENOID
MOTOR 
TAPE
+B8 
+B8 
Q708
Q707
IC701
IC701
52  PIN
T2  REC
IC701
51  PIN
28  PIN
MOTOR  DRIVER
Q706
FM  IF 
FM  IF 
VF
VIDEO 
Q502
Q501
Q122
Q121
+B6 
DECORDER
DOLBY
PROLOGIC
M62464AFP 
IC501 
SW
SW
SW
SW
+B7 
MECHA
TAP
Q706
Q708
FE301 
FM  FRONT  END
CF301 
CF302 
Q301
FM
ANTENNA 
L341
BALUN 
AM  LOOP 
ANTENNA 
FM  OSC
L354
AN7345K
TUN SM
VIDEO/AUX  IN
JK201
FM
+B6 
CLK 
+B6 
AM  IF 
BI401 
Q106
Q103- 
456kHz
10.7MHz 
450kHz
CLK
CE
DI
DO
DI
CE
MO/ST 
SWITCHING 
H ONLY
+B6 
FM/AM 
PLL(TUNER)
LC72131 
IC302 
OUT 
FM/AM
BIAS
T1/T2
REC MUTE
P.B.
REC 
AC  BIAS 
TAPE
TUNER 
CD
PB
CNP11 
FROM
CD  SECTION 
HEAD
ERASE  
SWITCHING 
SWITCHING 
SWITCHING 
BIAS   
Q110
Q111
Q109
Q126
SWITCHING 
Q124
OSC 
BIAS   
L104
Q128
Q107
Q108
REC  PB  HEAD 
TAPE  2
PB  HEAD 
TAPE  1
R-CH
L-CH
R-CH
L-CH
AUDIO
PROCESSOR
LC75341M
IC401
+B6 
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) 
/PLAYBACK  AMP.
PLAYBACK  AND  RECORD
IC101
R
L
FM/AM
MPXIN
STEREO
AM  RF  IN
AM  OSC  IN 
FM
Q360
VT
OSC 
4.5MHZ
X352
COVERAGE
AM  BAND 
AM  TRACKING 
T303
T306
X351
MO/ST
VCO 
DET
FM
FM+B
GND
AM  IF 
CF351
FM/AM
LA1832S
IC303
AM  MIX
OUT
FM
IF IN
CF352
T351
13
14
15
15
11 
17 
75 
25 
69 
21 
23
22
74 
21 
22 
24 
18 
9  10 
18 
11 
16 
15 
10 
23 
14 
12 
13 
20 
19 
18 
10 
17 
13 
21 
24 
23 
16 
14 
12 
15 
1
21 
5
17
21 
20 22  11 
17 
16 
15 
13 
14 
12 
15 
16 20
23 
H/N 
P.B 
REC 
T1/T2 
T1/T2 
HIGH
NOR/
IF  MPX. 
~
FM  IF  DET./FM
 MPX./AM  IF
Figure 26 BLOCK DIAGRAM (2/3)
– 27 –
CD-DP900H/E
M+13V 
+B4 
IC803 
KIA7812AP
KIA7805AP
KIA7810AP
AN78L05
IC801~804
TRANSFORMER(SUB)
POWER
PT802
Q803
D814A
D815A
D816A
D817
RL801 
E ONLY
+B3 
D809A
T2A L250V
F805
FAN
MOTOR 
M901
PT801 
POWER TRANSFORMER(MAIN)
IC802 
VF2 
VF1 
–VF1 
H ONLY
D818
D807
RL902 
RL901 
SPEAKER
SPEAKER
REAR
CENTER
SPEAKER
FRONT
R-CH
L-CH
R-CH
L-CH
+B7
+B7
BACK  UP 
MEMORY
+B7 
+B5
Q709
XL700
4.194304MHz
Q504
Q503
SW721-SW725 
SW727-SW729 
H ONLY
H ONLY
SW711-SW720 
SW701-SW708 
+B7 
+B7 
RX701 
MECHANISM 
TAPE
Q705
Q706
Q708
VDD 
AVDD
SMUTE 
VDD 
VDD 
+B7 
–VF
+B6 
UNSW  5V 
+5V 
IC804 
IC801 
T4A L250V
T3.15A L250V 
SUPPLY  CORD
AC  POWER
AC230~240V/50Hz 
L801
LINE
FILTER
D808
+B3 
–20dB  ATT 
TUN SM
Q402
Q401
SECTION 
TO  CD 
VF2 
VF1 
Q804
+B5 
+B8 
+B1 
–B1 
+B2 
–B2 
D802
D801
JK701 
HEADPHONES
STK402-071
Q823
POWER  AMP.
STK402-020
IC902
A+10V 
+7V 
T2A L250V
F806
F804
T3.15A L250V 
F803
F802
+Vcc
–Vcc
L-OUT 
R-OUT 
T4A L250V
F801
IX0504AW
R-OUT
L-OUT
–Vcc
+Vcc
POWER  AMP.
IC901
E
CNP8
FROM
CD  SECTION 
TF
MICROCOMPUTER 
SYSTEM
IC701
FL DISPLAY 
FL701 
45 
17 
20 19  18 
92 
41 
27 
19 
14 
13 
5 12 
47 
16 
21 
22 
23 
24 
10 
11 
12 
13 
41 25 
31 
32 
33 
34 
39 
40 
46 
53
52
51
44
43
42
26
20
54
37
17
15
8
7
78
93
86
91
59
27
62
70
85
80
100 
6
5
4
10 
10 
15 
15 
13 
13 
BI701 
10
~
Q910
VOLTAGE
REGULATOR
Figure 27 BLOCK DIAGRAM (3/3)
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Download Sharp CD-DP900 (serv.man20) Service Manual (Repair Manual)

Here you can read online and download Sharp CD-DP900 (serv.man20) Service Manual in PDF. CD-DP900 (serv.man20) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp CD-DP900 (serv.man20) 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.