Sharp XL-T300 (serv.man20) Service Manual ▷ View online
– 37 –
XL-T300H
7
8
9
10
11
12
Figure 37 WIRING SIDE OF P.W.BOARD (4/4)
C801
R105
C118
R109
R107
R103
C105
C103
C104
R115
C101
R140
C102
C121
R908
C152
C151
R151
R152
R160
R153
C821
C804
R810
C871
C809
IC803
R807
C852
R808
C849
C838
C834
C826
C843
C837
R831
C830
C816
C827
R812
C836
C814
C841
C829
R827
C832
C815
C823
R817
C867
C811
C833
C828
C824
R805
IC802
R816
C810
C813
R806
R820
R818
R802
C818
C817
C806
C835
R828
R829
C831
R832
R833
C847
R839
C848
IC801
C860
R846
R846
R848
R849
R850
L852
R851
R859
R840
R841
R852
C855
R842
C870
R843
R861
R853
R844
R862
R854
C858
C859
L851
C862
R858
C861
R857
R154
C905
C904
R159
R903
R904
R905
R909
R910
C901
C122
R120
R118
C116
R124
R119
R117
C115
R116
R122
R121
R123
R123
C106
R126
R125
R133
R134
R114
R104
R108
31
R132
R110
R113
T3.15A L250V
T3.15A L250V
T1.25A L250V
BK
R229
C219
C223
L201
SO601
C222
C220
C224
R230
L202
Q204
R216
C210
R609
D602
Q605
R612
C609
R605
C610
C603
C252
Q602
C251
C221
C231
R234
R233
CNP651
RLY601
CNP681
R686
Q683
CNP909
D689
R685
C682
D683
D684
D682
C681
D681
CNP701
C661
C683
C891
C665
D685
D688
IC681
C689
CNP801
C688
D805
D806
D806
C651
D652
D651
C802
C654
D653
L681
D654
C658
C657
D658
C659
D659
C232
C606
R607
C605
C604
Q603
R606
R604
Q601
R611
C601
Q604
C608
Q607
D601
R610
C602
R601
ZD602
R602
R608
C607
ZD601
Q606
R603
141
07
08
08
C109
C125
C123
C401
CNP751
IC102
C111
C107
C113
R101
IC101
R139
C131
CNP703
C153
C154
Q154
Q151
Q155
L151
C156
D686
Q153
R156
R157
C660
C155
Q152
D657
D660
R155
R863
L803
R865
C820
ZD801
R826
Q804
D803
R855
C803
D804
R864
C872
C808
CNW802
C857
L802
Q802
C846
L805
R835
R811
R809
C805
R815
C839
D801
Q801
C822
L801
R801
R856
R804
R819
R803
CNW909
R821
C812
C807
C819
R837
D802
C850
C851
C825
CNP804
C853
CNP704
C854
X801
C856
C869
Q803
C868
ZD802
Q805
D902
C903
Q905
R906
R907
D904
R902
D903
R901
Q901
Q902
Q904
Q906
C902
Q903
D901
CNW901
Q172
CNP101
C130
Q104
Q171
R138
Q102
Q101
Q103
R102
C114
C117
D104
C108
C126
C129
C112
R112
R111
C110
T651
T681
SO651
LF651
F651
F652
F653
1 2 3
1
5
10
12
13
15
20
24
1
5
10
15
20
25
30
32
33
35
40
45
48
49
50
55
60
64
16
17
1 2 3 4 5 6 7 8 9
10
1
BK
BK
BK
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
GY
BK
GY
GY
GY
GY
GY
GY
7
1
2
3
4
5
6
7
8
9
1
6
1 2
1
2
3
2
3
1
5
10
14
15
20
25
28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
1
2
3
4
5
6
7
8
1
1
2
2
3
4
5
6
7
8
9
10
11
12
3
4
5
6
4
5
6
7
8
9
8
9
1 2 3 4 5
12
3
POWER TRANSFORMER
(MAIN)
1
2
3
YL
YL
BL
RD
BR
BR
BK
4
5
2
3
1
CNW704
FROM DISPLAY
PWB-B1
P35 8-F
CNW701
FROM DISPLAY
PWB-B1
FROM CD
PICKUP UNIIT
P35 10-F
CNW801
P35 8-B
CNW703
CNP703A
TAPE HEAD
FROM DISPLAY
PWB-B1
P35 10,11-F
P35 11-B
AY
FROM TAPE
MECHANISM
P34 4-C,D
TO TAPE
MECHANISM
PWB-E
TO
CD MOTOR PWB-D
P34 3-B
RIGHT
LEFT
SPEAKER
TERMINAL
TERMINAL
POWER TRANSFORMER
(SUB)
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.
AC POWER
INPUT SOCKET
INPUT SOCKET
AC 230V,50Hz
LINE FILTER
1 2
TO TAPE
MECHANISM
CHASSIS
MECHANISM
CHASSIS
6
5
5
3
7
2
4
1
6
5
5
3
2
2
4
1
1 2 3
E C B
B C E
B
C
E
C
E
B C E
3 2
1
2
3
2
3
E
C
B
C
B
1
2
3
2
3
E
C
B
C
B
E
C
B
C
B
B
C
E
C
E
1
2
3
2
3
1
2
3
2
3
3
2
1
2
1
E
C
B
C
B
B
C
E
C
E
3
2
1
2
1
B
C
E
C
E
1
3 2 1
1 2 3
B C E
B C E
B C E
C B
C B
B C E
B C E
B C E
3 2 1
1 2 3
B C E
B
C
E
C
E
1
9
8
10
6
7
5
7
5
11
15 14
17 16 13
12
4
2 3
XL-T300H
– 38 –
WAVEFORMS OF CD CIRCUIT
NO DISC FOCUS SEARCH
STOP PLAY
FOO
1
TMAX
1
IC801 33pin
FO+
2
SBOK
2
IC803 26pin
IC801 8pin
FO-
3
DMO
3
IC803 25pin
IC801 41pin
FOCUS SEARCH TOC IL
STOP PLAY
SEL
1
TEI
1
IC801 38pin
FEI
2
TRO
2
IC801 29pin
IC801 34pin
TEI
3
FMO
3
IC801 31pin
IC801 40pin
STOP PLAY
CUE
FEI
1
TEI
1
IC801 29pin
SBAD
2
TRO
2
IC801 30pin
IC801 34pin
RFO
3
FMO
3
IC802 22pin
IC801 40pin
STOP PLAY
REVIEW
FEI
1
TEI
1
IC801 29pin
RFGO
2
TRO
2
IC802 19pin
IC801 34pin
RFRP
3
FMO
3
IC802 17pin
IC801 40pin
STOP PLAY
TCD-782 TNO-02 PLAYBACK
TEI
1
LO
1
IC801 31pin
TRO
2
IC801 34pin
RO
2
SBAD
3
IC801 30pin
1
2
3
4
6
7
11
15
16
17
IC801 53pin
IC801 31pin
IC801 31pin
IC801 31pin
IC801 16pin
5
6
5
7
8
5
9
10
6
11
12
13
14
6
11
15
6
11
15
IC801 50pin
– 39 –
XL-T300H
TROUBLESHOOTING
Cleaner Liquid
Cleaning Disc
PARTS CODE: UDSKA0004AFZZ
PARTS CODE: UDSKA0004AFZZ
HOW TO USE
1. Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the brush on the CD cleaner disc which has
the mark next to it.
2. Place the CD cleaner disc onto the CD disc tray with the brush side down, then press the play button.
3. You will hear music for about 20 seconds and the CD player will automatically stop. If it continues to turn, press the stop button.
3. You will hear music for about 20 seconds and the CD player will automatically stop. If it continues to turn, press the stop button.
CAUTION
The CD lens cleaner should be effective for 30 - 50 operations, however if the brushes become worn out earlier then please
replace the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft cloth.
Do not drink the cleaner fluid or allow it to come in contact with the eyes. In the event of this happening then drink and / or
rinse with clean water and seek medical advice.
The CD cleaner disc must not be used on car CD player or on computer CD ROM drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting product is prohibited by law.
replace the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft cloth.
Do not drink the cleaner fluid or allow it to come in contact with the eyes. In the event of this happening then drink and / or
rinse with clean water and seek medical advice.
The CD cleaner disc must not be used on car CD player or on computer CD ROM drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting product is prohibited by law.
When the CD does not function
When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean
the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup
lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check
the following items.
Remove the cabinet and follow the troubleshooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup
lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn off the power, and wipe the lens softly using a cleaning paper moistened with commercially available cleaning solution so
as not to damage it.
Be careful not to touch the lens with bare hands.
as not to damage it.
Be careful not to touch the lens with bare hands.
Dust gradually accumulates on the objective lens during use, and it may degrade performance.
To avoid this problem, use a cleaning disc designed for CD optical pickup lenses.
To avoid this problem, use a cleaning disc designed for CD optical pickup lenses.
XL-T300H
– 40 –
Make sure that the disc is normal, and set the CD TEST MODE (STEP 1).
Is the measured voltage as specified in circuit diagram?
Check the main unit power supply circuit.
No
Yes
No
Is "Er-CD01" displayed"?
Yes
Move the pickup to most internal circumference side of disc.
Turn the power off and reset the CD TEST MODE (STEP 1).
Is "PU ERROR " not displayed?
Turn the power off and reset the CD TEST MODE (STEP 1).
Is "PU ERROR " not displayed?
Yes
Check the PWB pattern between pin 65 (CD_RES) of IC701 and
pin 63 (RST) of IC801.
pin 63 (RST) of IC801.
No
Is +5V applied to pin 63 (RST) of IC801?
Yes
Is CD Lid switch SW802
ON condition ?
ON condition ?
No
Does the CD TEST MODE advance from "STEP 2"?
Yes
Check the between pattern IC701 and SW802 If OK.
Check the main unit power supply circuit.
Check the main unit power supply circuit.
No
Does the laser come on in CD TEST MODE "STEP 2"?
Check the procedure in "LASER FAILURE".
Yes
Does the CD TEST MODE advance from "STEP 3" to "STEP
4"?
4"?
Check the procedure in "FOCUS FAILURE".
Yes
Yes
Does the spindle motor rotate normally when the CD TEST
MODE changes from "STEP 4" to "STEP 3"?
MODE changes from "STEP 4" to "STEP 3"?
Yes
Is the HF output on pin 24 of IC801 in CD TEST MODE "STEP 5"?
Check the procedure "HF ERROR".
Yes
No
No
No
No
Check the pattern between pin 58 (PU_IN) of IC701 and
CNW704/CNP704.
Check the between CNW704/CNP704 and PU-IN switch.
CNW704/CNP704.
Check the between CNW704/CNP704 and PU-IN switch.
Set ON condition the CD
Lid switch.
Lid switch.
Check the procedure in "SPINDLE MOTOR CLV SERVO
FAILURE".
FAILURE".
No
Does the sled motor
move ?
move ?
No
Does the sound heard when the optical pickup move to the
selected play by the FF
selected play by the FF
/REW
key.
Check the procedure "NO SOUND"
No
Yes
Check the procedure in
"SLED MOTOR
OPERATING FAILURE ".
"SLED MOTOR
OPERATING FAILURE ".
Does the LCD track number and time indicator work properly ?
Check the pattern between IC701 and LCD701.
Yes
No
Is "Er-CD01 "
displayed ?
displayed ?
No
Turn the power off and then back on.
Does the unit initialize properly and start playback when PLAY
key is pressed?
Does the unit initialize properly and start playback when PLAY
key is pressed?
Check the pattern between pin 58 (PU_IN) of IC701
and CNW704/CNP704. Check the between CNW704/
CNP704 and PU-IN switch.
and CNW704/CNP704. Check the between CNW704/
CNP704 and PU-IN switch.
No
Yes
Check the procedure in
"HF ERROR".
"HF ERROR".
Yes
Does the unit play in order in the FF mode?
Check the procedure in "TRACK SEARCH FAILURE".
Yes
Does playback continue for 30 seconds after the start of
playback ?
playback ?
Check the procedure in "SLED SERVO FAILURE".
Yes
Normal
No
No
Yes
Click on the first or last page to see other XL-T300 (serv.man20) service manuals if exist.