Read Sharp CD-DP2500 (serv.man25) Service Manual online
– 23 –
CD-DP2500H
Figure 23 BLOCK DIAGRAM (1/3)
CNP12
CNP11
CNP5
CNS99
Q2
+3.3V
+5V
CONT5
CONT2
CONT3
CONT4
CONT7
CONT6
SLD0
SPD0
FD0
TD0
+5V
TO DISPLAY SECTION
CLAMP SW
CDINT
WRQ
CE
DO
CLK
DI
CD RES
GND
DRF
CNS4
BI4
CNP4
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
M
M
TRACKING COIL
FOCUS COIL
PICKUP UNIT
TE
FE
RFEV
HFL
VVDD
ADAVDD
VDD
LVDD
RVDD
XVDD
VDD5V
RFEV
FE-
FE
TE-
TE
HFL
+3.3V
Q1
LDD
PD
TIN2
TIN1
FIN2
FIN1
IC3
M63001FP
FOCUS/TRACKING/
SPIN/SLIDE DRIVER
IC1
LA9235M
SERVO AMP.
TO MAIN SECTION
(TO IC601)
CD DIGITAL OUT
IC99
R-CH
L-CH
AGND
DGND
+B6(+5V)
RCHO
RVSS
LVSS
LCHO
IC2
LC78641E
SERVO/SIGNAL
CONTROL
-
+
M
SW1
OPEN/
CLOSE
XL1
16.9344MHz
6
5
4
3
3
2
5
4
1
3
2
1
3
2
1
1
2
3
4
7
8
2
1
7
8
9
10
1
2
4
3
5
SW2
CLAMP
SW3
DISC
NUMBER
M3
T/T
T/T
UP/DOWN
MOTOR
6
1
2
4
3
5
6
1
2
4
3
5
6
75
DOUT
37
76
45
46
47
48
32 31
30
65
66
67
68
69
70
71
72
CE
CL
DI
DO
INT
WRQ
RES
DEF
52
51
XOUT
XIN
73
5 18 36 44 49 50
7
14
15 16
23
24
25
26
33
3
13
19
40
64
74
17
18
19
20
21
22
30
23
11
9
1
4
5
6
7
15
16
26
27
2
17
25
41
42
38
39
35
29
22
21
14
8
40
24
23
28
SW4
PICKUP IN
Q3
LASER
DRIVER
CONSTANT
VOLTAGE
+3.3V
+5V
VCC4
18
VCC1
VCC2
VCC3
CD-DP2500H
– 24 –
Figure 24 BLOCK DIAGRAM (2/3)
Q706
+B4
+B4
M
Q704
Q705
Q705
IC701
54PIN
54PIN
IC701
53PIN
53PIN
IC701
56PIN
56PIN
IC701
55PIN
55PIN
MM1
TAPE
MOTOR
SOLM1,SOLM2
SOLENOID
SWM2
T2 PLAY
SWM1
T1 PLAY
SWM4
R. PLAY
SWM3
F. PLAY
MOTOR
DRIVER
DRIVER
FM ANTENNA
FM 75
Ω
SO301
17
8
456KHz
X351
CF351
FM DET
4
5
9
21
16
21
1 2
24
23
15
20
1
22
13
16
18
14
15
15
12
7 9
11
3
9
4 5 6
10
GND VCC
AM IF
FM IN
IC302
LC72131
PLL (TUNER)
FE301
FM FRONT END
ICT21
LC72722
RDS
OSC
AM IF
AM MIX
AM
IN
AM OSC IN
AM RF IN
X352
4.5MHz
T351
+B9
+B9
+B9
IC303
LA1832
FM/AM IF MPX.
L
R
R
STEREO
AM OSC IN
DO
DI
CL
CE
1
24
2
23
3
4
4
4
21
6
7
17
8
9
16
10
14
12
13
18
H/N
T1/T2
R-CH
L-CH
L-CH
R-CH
P.B
REC
TAPE 2
TAPE 1
TAPE MECHANISM
Ass'y
L NF
L(T1)
R(T1)
L(T2)
R(T2)
R NF
L
R
POP REDUCE
L REC
R REC
L
R
R
REC
P.B.
REC
ALC
NOR/
HIGH
T1/T2
REF
L NF
R NF
R NF
PB HEAD
REC/PB HEAD
SWITCHING
Q103~Q106
AC BIAS
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
PB
ERASE
HEAD
SWITCHING
BAIS
Q126
Q124
Q128
L104
Q111
Q110
Q109
Q107
Q108
Q403
Q404
SWITCHING
SWITCHING
SWITCHING
+B5
1
2
3
CNS401
FROM CD SECTION
CNP11
17
+B5
+B9
+B5
+B5
+B5
+B5
+B5
VOLTAGE
REGURATER
9
1
3
8
8
6 12 5 13
7
10
14
2
9
4
9
4
11
16
10
15
11
15
11
14
12
13
13
8
17
18
7
1
2
75
74
34
21
69
25
38
3
IC401
LC75341
AUDIO PROCESSOR
IC201
BU4066BC
SWITCHING
L
R
L
R
L
R
L
R
L
R
L
L
R
R
TUNER
L
R
VIDEO
TAPE
CD
BAIS
T1/T2
REC
+B5
21
4
9
Q501
Q502
ZD8
FM IF IN
FM IF
FM IF
CF301
7 FM
Q360
QT21
QT22
Q301
FM +B
MPX IN
VOLTAGE
REGULATOR
CF302
FM+B
MO/ST
FM/AM
BIAS
OCS
15
19
24 1
2
23
MONO/ST
JK201
VIDEO IN
CF352
L354
LOW PASS
FILTER
TAPE
MECHANIS
IC501
M62464AFP
DOLBY PRO LOGIC
DECORD
M62464AFP
DOLBY PRO LOGIC
DECORD
CL
DI
CE
1
2
AM LOOP
ANTENNA
ANTENNA
CNP301
T306
AM
ANT
COIL
AM
OSC
COIL
T303
L341
BALUN
4 3
1
5
2
3
14
VT
VCC
FOUT
IFOUT
ANT
8
7
6
2
VDDD
VDDA
13
12
XIN
XOUT
XT21
4.332MHz
5
6
FLOUT
CIN
23
22
21
24
15
8
7
4
20
CE
DI
CL
DO
– 25 –
CD-DP2500H
Figure 25 BLOCK DIAGRAM (3/3)
Q709
IC804
IC801
IC802
KIA7810AP
KIA7805AP
AN78L05
IC601
IC602
IC603
IC602
IC603
KIA4558P
OPE AMP.
IC702
BU2092F
VOLUME
JOG701
Front
Speaker
Center
Speaker
L-ch
R-ch
L-ch
R-ch
Rear
Speaker
SO901
Speaker Terminal
IC703
BU2092F
~
1 2 3
6
14
53
33
27
32
54 55 56
FL701
DISPLAY
9 8 7 24 23 22 21
18
17
1
IC701
IX0333AW
SYSTEM MICROCOMPUTER
VDD
+B7
MEMORY
BACK UP
VDD
XL701
KEY
SW701~SW707
SW710~SW727
+B3
+B7
M
Q910
+B6
TO CD
SECTION
M901
FAN MOTOR
M
M701
MOVE MOTOR
JK601
HEADPHONES
T.F
PT801
POWER
TRONSFORMER
(MAIN)
RL801
AC POWER
SUPPLY CORD
L801
AC 230-240V, 50Hz
PT802
POWER
TRONSFORMER
Q803
+B8
BAIS
VF1
VF2
VROAD
/T2
EC
D801
D802
D803
~D806
Q804
D807
~D809
D818
2
3
1
4
8
+B7
+B4
–B1
RX701
Q701
Q702
Q703
Q710
Q711
Q712
9
8
7
10
7
10
L-OUT
IC901
STK40271
POWER AMP.
STK40271
POWER AMP.
IC902
STK40203
POWER AMP.
STK40203
POWER AMP.
–B1
+B3
+B1
L
L
L
R
R
R
9
13
8
–B2
+B2
R-OUT
Q401
Q402
Q503
Q504
Q751
Q753
1
2
ZD801
+B5
–B3(–15V)
+B4(M+10V)
+B6
+B2
(A+10V)
(CD+5V)
(UNSW+5V)
(SW+5V)
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
VOLTAGE
REGULATOR
AVDD
SMUTE
~
~
~
1
15
1
15
13
4
10
11
12
13
2
15
41
17
18
19
20
30
25
27
31
32
33
34
36
39
40
46
56
55
54
53
51
50
91
16
86
80
100
92
79
38
37
55
54
53
52
47
VDD
D814~D817
FRONT
F801
T5A L 250V
F802
T5A L 250V
F803
T4A L 250V
F804
T4A L 250V
F805
T2A L 250V
15 16 24
26
25
+B7
+B7
+B7
LED711~LED714
18
12
17
+B7
LED701~LED703
IC704
KIA7042P
RESET
TAPE
MECHANISM
+B7
RL902
RL901
~
~
78
85
60
~
~
4
Q823
SW728~SW732
~