Read Sharp CD-XP300 (serv.man13) Service Manual online
– 19 –
CD-XP300H
Figure 19 BLOCK DIAGRAM (1/3)
+5V
(+B7)
(+B7)
CNS4
BI4
CNP4
M3
CD LOADING
MOTOR
CD LOADING
MOTOR
+
–
+3.3V(+B11)
TO DISPLAY SECTION
TO MAIN SECTION
CONSTANT
VOLTAGE
Q2
LASER
DRIVER
+3.3V(+B11)
Q1
+5V
(+B7)
PICKUP UNIT
IC1
LC78645NE
CD SERVO
VDD
LDD
LDS
M
SW3
DISC
NUMBER
SW2
CLAMP
SW1
OPEN/
CLOSE
CNP8
CNP7
TRACKING COIL
FOCUS COIL
SW4
PICKUP
IN
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)
D_GND (DRIVER)
+5V (+B8)
VCC3
VCC2
VCC4
VCC1
IC2
M63001FP
FOCUS/TRACKING/
SPIN/SLED
DRIVER
XIN
XOUT
RES
WRQ
DO
DI
CLK
CE
TIN2 F
TIN1 E
FIN2 B
FIN1 A
TDO
FDO
SPDO
SLDO
CONT5
CONT2
CONT3
CONT4
VDD5
LCHO
RCHO
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)
D_GND
L-CH
3
5
4
A_GND
R-CH
1
2
42
45
68
25
70
64
65
66
DRF
67
48
49
ADAVDD
18
+3.3V
(+B11)
(+B11)
DISC NO
~
~
ZD1
3.3V
+
–
–
+
CD-XP300H
– 20 –
Figure 20 BLOCK DIAGRAM (2/3)
+B6
7
8
8
6
5
4
+B4
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
AUX L
R
JK690
VIDEO/AUX IN
VCC
+B5
CLK
+B6
+B6
+B6
+B5
AM IF
VT
AM LOOP
ANTENNA
CNP301
BI601
–20dB
ATT
ATT
Q101~
Q104
Q107
Q108
Q108
Q601
Q602
Q602
Q603
Q604
Q604
10.7 MHz
450 kHz
REC/PLAY
CLK
CE
DI
DO
DI
CE
MO/ST
SWITCHING
+B5
FM/AM
IC302
LC72131
PLL
(TUNER)
FM/AM
OUT
R
L
L
BIAS
T1/T2
MUTING
P.B.
REC.
AC BIAS
TAPE
TUNER
CD
PB
CNP7
FROM
CD SERVO
SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
Q110
Q706
Q707
Q708
Q708
SWITCHING
Q109
BIAS OSC
Q111
L103
Q105
Q106
Q106
RECORD/
PLAYBACK
HEAD
TAPE 2
PLAYBACK
HEAD
TAPE 1
L-CH
R-CH
R-CH
L-CH
R-CH
R-CH
IC601
LC75341
AUDIO
PROCESSOR
+B5
R
L
REC
R
L
ALC
R REC
L REC
POP
REDUCE
SWITCHING
L(T2)
R(T2)
R(T2)
R(T1)
L(T1)
+B7
+B8
+B8
R
L
PHASE
(FM/AM)
MPX IN
STEREO
AM RF IN
AM OSC IN
AM OSC OUT
FM
Q360
X OUT
X352
4.5 MHZ
AM BAND
COVERAGE
AM
TRACKING
T303
T306
X351
456 kHz
ZD351
5.1V
MO/ST
VCO
FM
DET
FM+B
GND
AM IF
CF351
IC303
LA1832S
FM IF DET.
FM MPX./AM IF
AM MIX
CF352
T351
CF302
CF301
Q301
FE301
FM FRONT END
21
4
24
2
1
8
18
17
3
9
10
18
11
16
3
15
10
9
7
23
14
12
13
12
13
1
2
2
19
7
18
10
13
21
4
2
24
23
6
9
16
12
11
15
1
5
4
1
3
7
2
4
1
21
7
9
8
5
17
6
21
2
1
20
22
11
17
16
15
5
1
6
3
13
14
12
15
16
23
24
4
7
H/N
P.B
REC
T1/T2
T1/T2
ALC
+B5
+B5
+B5
SYSTEM
MUTE
TAPE
MECHANISM
ASS'Y
MOTOR
DRIVER
DRIVER
SOLENOID
DRIVER
+B3
+B3
ICT21
LC72723
RDS DEORDER
16
15
14
13
8
9
10
2
3
11
7
SO301A
FM ANTENNA
TERMINAL
MPX IN
VDDA
X OUT
X IN
QT21
XT21
4.332 MHz
RST
RDDA
RDCL
RD-ID/ READY
AOUT
X IN
L354
LOW PASS LOW
FM IF
AMP.
R
L
+B5
VSSD
TEST
L
R
R
L
R
R
L
R
R
L
R
R
VDDD
– 21 –
CD-XP300H
Figure 21 BLOCK DIAGRAM (3/3)
KIA7805AP
AN78L05
Q905
–VF
VF2
VF1
Q801
IC855
+B2
+B3
+B4
-B1
+B1
-B2
+B7
+B3
+B10
-
12
13
41
+B5
19
Q705
R
L
20dB
TT
+B10
RX701
REMOTE
SENSOR
SENSOR
D803, D804
D802
D801
RL914
JK701
HEADPHONES
M4
FAN
MOTOR
FAN
MOTOR
M
Q906
Q709
Q601
Q602
Q602
Q603
Q604
Q604
IC901
STK41221
POWER AMP.
F804
T2A L 250V
VOLTAGE
REGULATOR
REGULATOR
F803
T2A L 250V
F805
T2.5A L 250V
T2.5A L 250V
F802
T4A L 125V
F801
T4A L 125V
R-OUT
L-OUT
Q901~
Q904
Q904
CLK
SO901
SPEAKER
TERMINAL
SPEAKER
TERMINAL
AC POWER
SUPPLY CORD
AC 230 V, 50 Hz
32
REC/PLAY
VLOAD
RESET
+B10
+B10
+B10
+B10
+B9
VDD
VDD
VDD
~
CE
DI
DO
XL700
4.194304 MHz
4.194304 MHz
–
BIAS
T1/T2
AVDD
SW701~SW705
SW711~SW725
SW727~SW729
SW711~SW725
SW727~SW729
KEY
TO CD
SERVO
SECTION
TO CD
SECTION
IC701
IX0524AW
SYSTEM
MICROCOMPUTER
FL701
FL DISPLAY
z
27
85
80
33
45
93
14
92
1 2 4 5 6 7 8
14
18
2
78
70
5
1
3
2
1
11
6
7
1
5
8
100
33
31
37
26
26
15
46
11 12
9
1 0
16 1 7 20 21 22 23 24
41
79
54
38
59
62
~
52
45
51
50
55
49
48
40 25 13
39
34
T.F.
PT801
MAIN POWER
TRANSFORMER
SYSTEM
MUTE
~
~
~
91
86
~
~
~
~
TAPE
MECHANISM
ASS'Y
RESET
SP DET.
SP RELAY
ON-OFF
FAN MOTOR
DRIVER
IC851
IC852
IC853
IC854
M_+13V
LD+7V
+B5
+B10
A+10V
UNSW_5.6V
+B7
+B8
+B8
+B9
D_5V
A_5V
SW_5V
KIA7810AP
KIA7812AP
IC851~IC854
VOLTAGE REGULATOR
VOLTAGE
REGULATOR
REGULATOR
M
L841
LINE
LINE
FILTER
RL841
PT841
SUB POWER
TRANSFORMER
D842~
D845
D845
+B10