Read Sharp XL-T300 (serv.man13) Service Manual online
XL-T300H
– 22 –
Figure 22 BLOCK DIAGRAM (2/3)
Q80
Q802
GVSW
FEO
FEN
VRO
RFRP
RFIS
RFGO
RFGC
AGCI
RFO
RFN
GND
FEO
FEN
VRO
RFRP
RFIS
RFGO
RFGC
AGCI
RFO
RFN
GND
RFDC
TEO
TEN
TEBC
SEL
LDO
MDI
TN1
TPI
FPI
FPI
FNI
VCC
HEAD AMP.
IC802
TA2157F
SERVO/SIGNAL CONTROL
IC801
TC94A14F
DOUT
TERMINAL
PWB
AVSS
DVSS
DVSS
TESIN
XVSS
DVSL
TMAX
RFI
RFCT
LPFN
LPFO
PVREF
VREF
X801
16.93MHz
XO
XI
DVDD
PDO
AVDD
DVDD
VDD
XVDD
AVDD
SEL
RFGC
TEBC
FOO
TRO
TEI
TEZI
RFRP
FEI
SBAD
SWITCHING
R-CH
L-CH
SO401
VIDEO/AUX
INPUT
VIDEO/AUX
INPUT
+B1
FOCUS/
TRACKING/
SPIN/SLED
DRIVER
1
2
3
4
5
6
7
8
9
4
10
11
12
13
16 26 27 19
21 22 23 24 25 17 18 28
PO1–
PO1+
VO4+
VO4–
VIN3
VG3
VCC
VCC
BIAS
VG4
VIN4
VO3+
VO3–
OPO
VO2-
VO2+
VIN2
VG2
GND
GND
GND
MUTE
REG O
TRB
VG1
VIN1
VO1+
VO1–
IC803
MM1469PH
FO
TR
7.3V
3.3V
+B1
+B6
+B2
+B4
+B5
+B5
A
C
B
F
E
+B5
+B5
+B6
23
24
22
21
20
19
18
17
14
26
24
20
19
18
16
35
38
36
37
33
34
31
32
29
28
30
16
15
13
12
11
10
9
8
7
6
5
4
3
2
1
DIGITAL
OUT
OUT
3
2
1
J801
40
41
FMO
DMO
63
57
62
61
60
59
58
46
47
BUS0
51 DVDD
BUS1
BUS2
BUS3
BUCK
CCE
RST
53
50
RO
LO
6
15
25
39
43
48
64
7 22 42 44 45
54
A_GND
GND
GND
M_GND
VOLTAGE
REGULATOR
ZD801
Q803
Q804A
Q805
ZD802
Q804A
Q805
ZD802
LD
MON
FOCUS COIL
1/2V
5V
TRACKING COIL
CD PICKUP UNIT
+B6
SPINDLE
MOTOR
SLED
MOTOR
PICKUP IN
SP+
SP–
SL+
SL–
PU-IN
GND
+
–
–
+
M
M
CD MOTOR PWB
M701
M702
SW702
SWITCHING
Q171
Q172
+B
Q153
BEAT
CANCEL
CANCEL
B-CAN
REC
BIAS
REC BIAS
CONT
CONT
SWITCHING
SWITCHING
A–12V
Q152
Q154
Q155
Q155
Q151
L151
FROM
DISPLAY PWB
Q105
Q106
Q106
REC MUTE
REC
B-CAN
BIAS
RUN_PLS
REC
MOT
SOL
U_CON5V
TAPE_S
W
L-OUT
CNP703
Q905
Q906
Q903
U-CON5V
M+12V
Q904
Q902
Q901
SWITCHING
CNW901
RUN-PLS
SOL
MOT
SWITCHING
SWITCHING
SOLENOID
DRIVER
SWITCHING
TAPE MOTOR
DRIVER
A–12V
CD_L
CD_R
1
RDS CLK
TAPE
SOLENOID
–
+
FOOL
CAM
MOTOR
1
2
3
4
5
7
6
6
1
2
3
4
5
7
6
6
M
R-CH
L-CH
ERASE
HEAD
HEAD
RECORD/PLAY
Q101-Q104
8
7
6
5
7
6
5
3
2
1
2
1
9
4
8
7
6
5
7
6
5
3
2
1
2
1
9
4
1
2
2
1
2
2
CNW101
CNP101
PHOTO
INTERRUPTER
10
9
8
5
2
9
8
7
6
5
4
3
2
1
11 6
3 4 1
HEAD SELECTOR
REC./P.B.
EQUALISER
AMP.
7
12
10
9
8
7
6
5
4
3
2
1
CD_RW
PU_IN
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
CD_RES
CD_STB
1 2 3 4 5 6 7 8
BA3126N
BA3311L
CNP301
TAPE MECHANISM ASS'Y
PH901
CFW901
SW901
SOL901
SW902
M901
IC101
IC102
CNP704
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