Sharp XL-T300 (serv.man14) Service Manual ▷ View online
XL-T300H
– 28 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 20.
Figure 28 SCHEMATIC DIAGRAM (5/10)
12.3V
20V
13V
20V
11.7V
11.7V
20V
0V
3 1
1
2
3
1
2
3
5
4
3
2
1
1
2
3
1
2
3
2
14 13 12 11 10 9 8 7 6 5 4 3
1
2
1 2
3
2
2
1
1
2
1
1
7
6
5
4
3
2
1
1
2
3
1
2
3
1
2
3
1
2
3
A_12V
M_12V
TO TAPE
MECHANISM
CHASSIS
MECHANISM
CHASSIS
DI
CE
A_GND
TUN R
TUN L
D_GND
A_12V
AUX R
R-CH
L-CH
AUX IN
AUX L
+B2
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
GND
RDS CLK
RDS DATA
DO
FM ST
SD
DI
CL
CE
VSM
+B1
–B1
–B
SP_RLY
FAN_DEC
AMP_DET
FAN_CONT
PROTECT
TF
D_GND
P_CONT
USWD_5.6V
TRANSFORMER(MAIN)
POWER
POWER
TRANSFORMER
(SUB)
LAMP5V
REC L
9
10
11
12
13
14
15
16
17
18
TAPE L
TAPE R
PROTECT
AMP_DET
SP_RLY
SP_RLY
M_12V
D_GND
D_GND
TERMINAL PWB-A2
DIGITAL OUT
1
2
3
4
5
2
3
4
5
REC R
PLAYBACK SIGNAL
RECORD SIGNAL
RECORD SIGNAL
CHASSIS
GND
CNP804
P31 12-C
P33 12-E
TO
MAIN PWB-A1(3/3)
TO
MAIN PWB-A1(2/3)
FM SIGNAL
CD SIGNAL
AC POWER
INPUT SOCKET
AC230V, 50Hz
When Servicing,
Pay attention as the area enclosed
by this line ( ) is directly
connected with AC main voltage.
Pay attention as the area enclosed
by this line ( ) is directly
connected with AC main voltage.
P31 12-F
TO
MAIN PWB-A1(2/3)
CNW701
P26 1-E
CNW705
P27 12-E
FROM
DISPLAY PWB-B1
1
3
2
3
1
2
CONSTANT
VOLTAGE REGULATOR
RELAY
LINE
FILTER
FILTER
CNS301
P25 11-D,E
FROM
TUNER PWB-C
2.7K
2.7K
27K
27K
1N4148
1N4148
0.0047
0.82
µ
H
0.0022
100/10
2.2
µ
H
1K
1K
820
DZ130BSA
0.022
KTC3200 GR
100
100/25
1N4148
22K
470/25
47
2SD2012 Y
22K
2SD2012 Y
47
0.022
10/16
KRC107 M
820
KRA102 M
0.022
22K
KTC3200 GR
2SD2012 Y
47
1N4148
10/16
470/25
100
100/25
33K
DZ8.2BSC
4700/25
0.001
2200/16
1N4004
0.047
AN78L05
1N4004
0.047
0.47/50
1N4004
1N4004
1N4004
1N4004
0.047
0.047
2200/35
2.7K
2.7K
2200/35
1N4004
1N4004
1N4004
1N4004
T1.25A L250V
0.1
0.1
0.1
0.1
T3.15A L250V
T3.15A L250V
0.1
0.1
1N5402M
1N5402M
1N5402M
1N5402M
1N4004
33K
47K
10K
KTC3199 GR
R407
R408
R405
R406
SO401
D451
D895
C866
D894
D452
C413
J801
L804
C865
C864
CNW804
L401
CNP401
CNW401
R401
R402
L402
R601
ZD601
C603
Q601
R602
C602
D601
R603
R605
C601
R604
Q602
R607
C604
C605
Q603
R606
Q607
R608
Q606
C609
C607
R609
C608
R612
Q604
Q605
R610
R611
D602
ZD602
C610
C606
SO651
T681
CNP909
CNW909
CNP705
CNP701
C661
C683
D689
C665
IC681
D688
C688
C689
CNP681
T651
CNP651
RLY601
D683
D684
D682
D681
C681
C682
C231
R234
R233
C232
C660
C659
C658
C657
D660
D657
D659
D658
F653
F651
F652
C654
C651
CNP301
CNP702
D653
D652
D654
D651
D685
Q683
R686
R685
LF651
– 29 –
XL-T300H
7
8
9
10
11
12
Figure 29 SCHEMATIC DIAGRAM (6/10)
9.6V
5V
0V
0V
0V
0V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
41V
0V
0.3V
0.3V
0V
4.5V
4.7V
4.9V
0.3V
0V
11.7V
11.3V
0.1V
0.1V
20.6V
–18.9V
0V
0V
0V
21.8V
21.7V
0V
0V
20.2V
0V
0.1V
0.1V
M
5
6
7
8
4 3 2 1
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
1 2 3 4 5 6
7 8
9
10 11
12
13
14
15
8 7 6 5 4 3
1
2
1 2 3 4 5 6 7 8 9 10 11 12 13
2
1
1
1
2
2
A_GND
CD_L
CD_R
12V
CD+B
CD_GND
P_MUTE
CD +B
CL
DI
CE
DO
FM ST
SD
VSM
DATA
TUN L
A_GND
TUN R
TUN L
D_GND
A_12V
CD L
AUX L
CD R
TUN R
AUX R
CL
DI
CE
DI
CE
DI
CE
VSS
TEST
LOUT
LBS2
LBS1
LTRE
LIN
LSL0
L4
L3
L2
L1
R1
R2
R3
R4
RSL0
RIN
RTRE
RBS1
RBS2
ROUT
VREF
VDD
CL
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
DI
CL
CE
–B
–B
–B
10
9
5
4
3
2
1
2
1
R
L
+B
+B
–B
–B
A GND
IN1
NF1
N.C.
PRE +VCC
BIAS
+VE1
–VE1
+VCC
–VCC
+VE2
–VE2
PRE –VCC
GND
NF2
IN2
(1W)
(1W)
D_GND
SP_RLY
AMP_DET
SURROUND
PROTECT
LAMP5V
M_GND
TAPE R
TAPE L
REC R
REC L
(1W)
CD_6.8V
2
1
RDS CLK
8
4 3 1
5
6
7
2
MAIN PWB-A1(1/3)
CHASSIS
GND
FAN MOTOR
+
–
–
–
+
+
SPEAKER
TERMINAL
HEADPHONES
JACK
JACK
P31 12-D,E
TO
MAIN PWB-A1(2/3)
CNW751
P26 1-E
FROM
DISPLAY PWB-B1
2
3
1
D
S
G
1
1
2
3
2
3
(CH)
(CH)
RELAY
POWER AMP.
FUNCTION/
VOLUME EQUALISER
SURROUND
CONTROL
NS301
11-D,E
ROM
R PWB-C
R PWB-C
CNW702
P27 12-F
FROM
DISPLAY PWB-B1
KIA4558P
47K
KRC107 M
2SK2541
1N4148
10K
0.0033
2.7K
4.7/50
100/16
10K
10K
12K
1/50
12K
12K
100K
0.0056
1/50
8.2K
47/16
10K
2.7K
12K
12K
0.0033
4.7/50
100K
8.2K
0.0056
1/50
12K
330
10/16
10/16
10/16
10/16
LC75342M
10/16
10/16
10/16
10/16
1K
1K
2.2/50
0.0027
0.1
0.1
1/50
3.9K
6.8K
1K
1K
10/16
1K
1K
1K
100/16
1N4004
33/16
1N4004
1N4004
10K
220P
220P
220P
1K
1K
1K
6.8K
2.2/50
0.0027
1/50
0.1
0.1
3.9K
1K
10/16
0.0022
6.8
0.022
0.022
0.022
0.022
0.022
0.0022
6.8
0.022
1N4004
KTC3199 GR
47K
0.022
0.022
6.8
0.022
0.022
6.8
KTC3199 GR
4.7K
0.022
4.7K
1N4148
0.2
KTC3199 GR
1N4148
4.7K
0.022
0.2
4.7K
10/50
39K
3P
10/50
1K
0.0015
100
100/50
56K
1K
470
10/50
10/50
33/16
6.8K
10K
10K
KTC3199 GR
KTC3199 GR
3.3K
1K
470
22K
0.0015
10/50
1K
100/50
56K
3P
1K
39K
100
10/50
10
µ
H
820P
330
330
10
µ
H
10
µ
H
820P
1N4148
1N4148
KTC3199 GR
1N4148
KTC3199 GR
56K
47/25
56K
KRC107 M
KRA107 M
3.3/16
KTC3199 GR
4.7K
1N4004
10K
100K
1N4004
100K
1N4004
3.3K
100
KTC3199 GR
27K
KTA1266 GR
1N4004
3.3K
KTC3200 GR
22K
470K
47/16
10/16
22K
2SC535 C
2.2
µ
H
0.022
0.022
10/16
0.022
22K
2SD2012 Y
47
1N4148
10/16
0/25
100
100/25
33K
DZ8.2BSC
2.7K
2.7K
10K
1K
STK40202
0.022 0.022
10K
1/50
3
µ
H
3
µ
H
IC201
R467
Q461
Q463
D461
R465
C471
R471
C473
C478
R469
R470
R475
C475
R477
R473
R463
C461
C463
R461
C469
R466
R472
R474
R476
C472
C474
C464
R464
R462
C462
C476
R478
R468
C408
C404
C402
C406
IC401
C403
C407
C405
C401
R415
R417
C417
C419
C421
C423
C425
R439
R437
R421
C415
R419
C430
D403
C429
D402
D401
R441
C432
C431
C433
R422
R416
R418
R438
C418
C420
C426
C422
C424
R440
R420
C416
L201
C223
R229
C219
C221
C252
C251
C222
C224
L202
R230
C220
RLY201
D204
Q207
R231
C236
C234
R235
C233
C235
R236
R220
Q204
R224
C218
R222
D202
Q203
D201
R223
C217
R219
R221
C204
R208
C210
C208
R210
C206
R218
C216
R216
R214
R212
C212
C211
R205
Q201
C201
R203
R206
R204
Q202
R201
R211
R232
C205
C207
R213
C215
R215
C209
R209
R207
R217
C203
JK601
L205
C226
R228
R227
L204
L203
C225
CNP751
D807
D808
Q205
D203
Q206
R225
C230
R226
Q241
Q242
C241
Q891
R894
D893
R893
R892
D892
R891
D891
CNP881
CNW881
M802
R887
R885
Q884
R886
Q883
D881
R881
Q881
R883
R884
R882
C880
C881
Q882
R880
L803
C603
C604
C605
C609
607
R609
C608
R612
Q605
R610
R611
D602
ZD602
C610
R234
R233
CNP702
R442
R202
IC601
C213 C214
R423
R425
R424
SO601
XL-T300H
– 30 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• The numbers
1
to
17
are waveform numbers shown in page 38.
• NOTES ON SCHEMATIC DIAGRAM can be found on page 20.
Figure 30 SCHEMATIC DIAGRAM (7/10)
1/2V
+5V
+5V
A3.3V
3.3V
1.6V
0V
1.1V
2.3V
1.6V
0.7V
1.2V
1.6V
1.6V
1.6V
2.0V
1.6V
1.6V
1.6V
1.6V
1.6V
0V
0V
2.6V
1.6V
1.6V
0.6V
7.3V
3.3V
FOCUS/TRACKING/
SPIN/SLED DRIVER
HEAD AMP.
24
23
22
21
20
19
23
22
21
20
19
18
17
16
15
14
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9 10 11 12 13 14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
GND
FO+
FO–
TR+
TR–
VR
E
A
B
B
F
C
VREF
+B
+B
+B
+B
+B
+B
VCC
FNI
FPI
TPI
TNI
MDI
LDO
SEL
TEBC
TEN
TEO
RFDC
FNI
FPI
TPI
TNI
MDI
LDO
SEL
TEBC
TEN
TEO
RFDC
GND
RFN
RFO
RFO
AGCI
RFGC
RFGO
RFGO
FEO
VRO
RAS
FEN
RFRP
FEO
VREF
RFGO
+B
LD
PD
GVSW
REDC
A_3.3V
HPC-3LX
C
FO+
1/2VCC
C
F
B
A
E
GND
MON
LD
VCC
TR–
ACTUATOR
GH6C605B3A1
TR+
FO–
FO–
F
CD PICK-UP UNIT (308)
C
B
TR–
+
–
+
–
+
–
+
–
+
–
TR+
PO+
FO–
GND
A
E
LD
VR
PD
PD
C
VIN1
VG1
TRB
REG
MUTE
GND
GND
GND
VG2
VIN2
V02+
V02–
V03–
OPO
PO1–
PO1+
VO3+
VIN3
VG3
VCC
VCC
BIAS
VG4
VIN4
V04+
V04–
VO1–
VO1+
2
5
7
3
15
13
1
8
9
9
6
10
11
11
4
14
12
16
2
5
7
3
15
13
1
8
9
9
6
10
11
11
4
14
12
16
SP+
SP–
SL+
SL–
PU-IN
GND
SP–
SL+
SL–
PU-IN
GND
5
1
4
3
2
2
6
4
5
2
6
1
4
3
CD MOTOR PWB-D
GND
PU-IN
SL–
SP+
SP–
SP+
PICKUP IN
SLED
MOTOR
SPINDLE
MOTOR
–
–
+
+
+
M
4
6
M
2
M
3
5
1
MAIN PWB-A1(2/3)
C3A
C2A
C4A
VR1A
(CH)
(CH)
82K
82K
47K
82K
82K
47K
82K
82K
47K
47/16
0.022
100/10
0.022
100/10
33K
47K
0.1
10K
0.1
100
1.5P
10K
22P
8.2K
0.1
0.1
100/10
100/10
0.0068
820
1K
0.1
TA2157F
47K
0.022
2.2
µ
H
KTA1266 GR
100/10
0.022
2SB562 C
4.7
0.022
100/10
2.2K
2.2K
330/10
0.022
MM1469PH
2.2K
0.022
100/10
10
CNW801
CNP801
CNP703A
R803
R802
R804
R805
R806
R801
R805
R806
R801
C802
C801
C807
C806
C812
R819
R817
C811
R820
C810
R816
C813
R818
C817
R821
C818
C823
C822
C819
C814
R815
R856
C867
IC802
R812
C815
L805
Q801
R809
C805
M701
M702
SW702
CNW802
C871
Q802
R811
C809
C808
R810
R808
C803
C804
IC803
R807
C816
C820
2
3
8
9
10
– 31 –
XL-T300H
7
8
9
10
11
12
Figure 31 SCHEMATIC DIAGRAM (8/10)
A3.3V
1.6V
3.3V
5.2V
0V
1.2V
0V
0V
0V
1.6V
3.3V
0.7V
1.6V
1.6V
0.6V
1.6V
1.6V
1.6V
3.2V
1.6V
1.6V
1.6V
1.6V
1.6V
1.0V
0V
0V
0V
0V
3.3V
3.3V
3.3V
1.6V
1.6V
1.5V
1.5V
0V
5V
5V
5V
5V
5V
5V
4.5V
3.3V
1.6V
0V
5V
5V
5.2V
3.3V
2.6V
0V
3.3V
0V
1.2V
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
7
5
8
4
6
3
2
1
10
9
8
7
6
5
4
3
2
1
1
2
3
18
TMAX
LPFN
LPFO
PVREF
VCOF
VCOF
AVSS
SLCO
RFI
AVDD
RFCT
RFZI
RFRP
FEI
SBAD
TEI
TEZI
(CH)
BCK
LRCK
AUTO
DOUT
DOUT
GND
PDO
PVDO
SBSY
SFSY
DATA
CLCK
SBOK
DVSS
DVDD
IPF
+B
VDD
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
FOO
TRO
VREF
RFGC
TEBC
SEL
AVDD
FMO
DMO
DVSS
DVDD
TESIN
XVSS
XI
XO
XVDD
DVSS
RO
DVDD
DVR
LO
DVSS
ZDET
µ
-COM
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
TEO
VREF
RFGO
0V
+B
+B
(CH)
SERVO/SIGNAL
CONTROL
RST
CD_6.8V
VSS
HSO
M_GND
CD_GND
CD+B
CD_12V
CD_L
A_GND
CD_R
GVSW
PU_IN
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
CD_RES
CD_STB
CNW704
P27 12-D
FROM
DISPLAY PWB-B1
CNW804
P28 2-C
FROM
TERMINAL PWB-A2
P29 8-H
TO
MAIN PWB-A1(1/3)
P28 1-F
TO
MAIN PWB-A1(1/3)
CD SIGNAL
1
1
2
2
3
3
(CH)
(CH)
100mA
(CH)
(CH)
(CH)
33K
7K
10K
100
10K
22P
8.2K
0.1
0.1
100/10
100/10
47/10
0.1
47P
47K
0.015
15K
150K
5.6K
0.0027
0.01
10K
0.033
0.047
470P
470P
0.033
4.7K
0.047
0.047
TC94A14F
10/10
100/10
10/10
15P
1M
12P
100/10
0.022
0.047
0.047
47/10
0.1
0.0068
2.2
µ
H
2.2
µ
H
0.022
100/10
0.022
DZ5.1BSB
100
390K
1N4148
47/10
10K
1N4148
0.022
100/10
0.022
0.022
KRC107 M
0.022
0.0015
100/10
DZ3.9BSB
100/10
KRA102 M
100
820
KTC3199 GR
10K
470P
470P
1.8K
1.8K
10K
1N4148
1N4148
1N4148
1N4148
1K
1K
1K
1K
1K
47/10
0.022
100
10mA
10K
10K
10K
10K
10K
1K
1K
100K
10P
100P
1K
0.1
0.01
16.93MHz
10
100mA
R819
17
R820
R816
R818
C817
R821
C818
C823
C822
C819
C825
C824
C835
R833
R829
C831
R828
R832
C833
C828
R827
C829
C826
C827
C830
C836
R831
C837
C843
IC801
C853
C856
C854
L852
L851
C852
X801
R840
C855
C846
C849
C834
C838
C839
C841
C814
L801
L802
C816
C820
C821
ZD801
R826
R835
D801
C850
R837
D802
C872
C857
C859
C858
Q805
C870
C891
C869
ZD802
C868
Q804A
R864
R865
Q803
R861
C861
C862
R858
R857
R862
D806
D805
D803
D804
R854
R853
R852
R851
R850
C851
C848
R839
L853
R859
R843
R842
R841
R844
R849
R848
CNP704
CNP804
R846
C847
C844
R855
C860
C832
R863
1
4
5
6
7
9
10
11
12
13
14
15
16
17
Click on the first or last page to see other XL-T300 (serv.man14) service manuals if exist.