Sharp AL-2021 Service Manual ▷ View online
AL-2041 CIRCUIT DIAGRAM 14 - 16
+5V
+5V
+5V
+5V
+5V
5VEN
ONL
PSL
OP-LA
TCH
OP-STB
OP-CLK
OP-DA
T
A
DUT1
DUT2
DUT3
DUT1
DUT2
DUT3
g1
a2
c2
g2
c1
a1
b1
f1
e3
a3
d1
c3
b2
d3
e1
g3
f3
f2
e2
d2
LEDM1
b3
PML
ONLL
ZPL
2RE
DU22
1RE
RPL
NOR
SPFL
AE
JPL
2ENR
CS1L
TPL
EXL
E
XD
EXN
CS2L
EST2
SCNL
SJAL
BPL
1ENR
MPL
DPL
PE
DU21
ME
3RE
EST1
R49
10kJ
R49
10kJ
TP43TP43
R60
470J
R60
470J
TP13TP13
TP26TP26
LT
L-1LHG-002A
LED4
LT
L-1LHG-002A
LED4
R31
0
J
R31
0
J
C12
200pF
C12
200pF
LT
L-1LHG-002A
LED24
LT
L-1LHG-002A
LED24
TP14TP14
R47
100J
R47
100J
TP31TP31
TP33TP33
LT
L-1LHG-002A
LED9
LT
L-1LHG-002A
LED9
R35
4.7KJ
R35
4.7KJ
LT
L-1LHG-002A
LED27
LT
L-1LHG-002A
LED27
R37
1.1kJ
R37
1.1kJ
TP51TP51
R22
100J
R22
100J
C18
200pF
C18
200pF
R54
470J
R54
470J
R33
4.7kJ(NM)
R33
4.7kJ(NM)
TP23TP23
LT
L-1LHG-002A
LED18
LT
L-1LHG-002A
LED18
LT
L-1LHG-002A
LED12
LT
L-1LHG-002A
LED12
C9
200pF
C9
200pF
TP38TP38
TP47TP47
R36
4.7KJ
R36
4.7KJ
LT
L-1LHG-002A
LED8
LT
L-1LHG-002A
LED8
R1
100J
R1
100J
TP46TP46
TP27TP27
TP1TP1
LT
L-1LHEE-002A
LED14
LT
L-1LHEE-002A
LED14
C15
200pF
C15
200pF
Q4
2SA1981S or KT
A1298Y
or 2SB1
197KT146
Q4
2SA1981S or KT
A1298Y
or 2SB1
197KT146
2
1
3
LT
L-1LHG-002A
LED2
LT
L-1LHG-002A
LED2
TP44TP44
TP24TP24
R42
100J
R42
100J
LT
L-1LHG-002A
LED29
LT
L-1LHG-002A
LED29
LT
L-1LHG-002A
LED3
LT
L-1LHG-002A
LED3
TP28TP28
LT
L-1LHG-002A
LED25
LT
L-1LHG-002A
LED25
LT
L-1LHG-002A
LED1
LT
L-1LHG-002A
LED1
R26
100J
R26
100J
R56
100J
R56
100J
TP37TP37
R32
100J
R32
100J
R44
100J
R44
100J
TP48TP48
TP16TP16
LT
L-1LHEE-002A
LED16
LT
L-1LHEE-002A
LED16
R39
100J
R39
100J
LT
L-1LHG-002A
LED23
LT
L-1LHG-002A
LED23
R55
4.7KJ
R55
4.7KJ
R50
470J
R50
470J
R46
100J
R46
100J
R24
100J
R24
100J
Q3
2SA1981S or KT
A1298Y
or 2SB1
197KT146
Q3
2SA1981S or KT
A1298Y
or 2SB1
197KT146
2
1
3
TP29TP29
LT
L-1LHG-002A
LED21
LT
L-1LHG-002A
LED21
R30
100J
R30
100J
Q2
2SA1981S or KT
A1298Y
or 2SB1
197KT146
Q2
2SA1981S or KT
A1298Y
or 2SB1
197KT146
2
13
Q1
DTC143ZKA(NM)
Q1
DTC143ZKA(NM)
1
2
3
R34
100J
R34
100J
LT
L-1LHEE-002A
LED17
LT
L-1LHEE-002A
LED17
TP50TP50
TP41TP41
LT
L-1LHG-002A
LED1
1
LT
L-1LHG-002A
LED1
1
R38
4.7KJ
R38
4.7KJ
R25
100J
R25
100J
C16
200pF
C16
200pF
C17
0.1uF
C17
0.1uF
TP19TP19
R23
100J
R23
100J
LT
L-1LHG-002A
LED10
LT
L-1LHG-002A
LED10
R41
100J
R41
100J
TP40TP40
R59
100J
R59
100J
TP39TP39
LT
L-1LHG-002A
LED26
LT
L-1LHG-002A
LED26
R17
100J
R17
100J
R57
100J
R57
100J
TP49TP49
C13
200pF
C13
200pF
TP18TP18
R21
100J
R21
100J
TP42TP42
LT
L-1LHEE-002A
LED19
LT
L-1LHEE-002A
LED19
LT
L-1LHG-002A
LED7
LT
L-1LHG-002A
LED7
LEDM1
LTC-3650AG-02TJ
LEDM1
LTC-3650AG-02TJ
c
1
d
3
Dig1
2
D.P
6
b
7
Dig2
4
f
8
Dig3
5
a
9
e
10
g
11
R51
10kJ
R51
10kJ
TP56TP56
R45
100J
R45
100J
TP58TP58
LT
L-1LHG-002A
LED6
LT
L-1LHG-002A
LED6
TP25TP25
R20
100J
R20
100J
R53
10kJ
R53
10kJ
TP36TP36
LT
L-1LHG-002A
LED5
LT
L-1LHG-002A
LED5
R28
100J
R28
100J
R27
1.1kJ
R27
1.1kJ
LT
L-1LHG-002A
LED30
LT
L-1LHG-002A
LED30
TP54TP54
R43
100J
R43
100J
TP20TP20
TP21TP21
TP32TP32
NM_L
TL-1LHEE-002A
LED13
NM_L
TL-1LHEE-002A
LED13
TP35TP35
C10
200pF
C10
200pF
TP30TP30
LT
L-1LHG-002A
LED28
LT
L-1LHG-002A
LED28
R48
100J
R48
100J
TP22TP22
R29
1.1kJ
R29
1.1kJ
LT
L-1LHG-002A
LED15
LT
L-1LHG-002A
LED15
R58
100J
R58
100J
R52
470J
R52
470J
IC2
STP16CP05MTR
IC2
STP16CP05MTR
OUT15
20
GND
1
CLK
3
OUT13
18
OUT6
11
OUT7
12
SDI
2
OUT5
10
OUT4
9
OUT14
19
OUT2
7
OUT12
17
OUT1
6
OUT10
15
OUT0
5
OUT8
13
OUT3
8
OUT9
14
LE
4
OUT11
16
VCC
24
/OE
21
SDO
22
R-EX
T
23
TP52TP52
TP45TP45
C14
0.1uF
C14
0.1uF
LT
L-1LHG-002A
LED22
LT
L-1LHG-002A
LED22
R18
100J
R18
100J
IC3
STP08CP05MTR
IC3
STP08CP05MTR
GND
1
CLK
3
OUT6
11
OUT7
12
SDI
2
OUT5
10
OUT4
9
OUT2
7
OUT1
6
OUT0
5
OUT3
8
LE
4
VCC
16
/OE
13
SDO
14
R-EX
T
15
TP17TP17
TP34TP34
R78
470J
R78
470J
TP15TP15
C1
1
1500pF
C1
1
1500pF
R19
100J
R19
100J
LT
L-1LHG-002A
LED20
LT
L-1LHG-002A
LED20
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
2/2
LED Section
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
COPYRIGHT
©
XXXX BYSHARP CORPORATION
ALL RIGHTS RESERVED.
The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder.
LEAD-FREE SOLDER
The alphabet following the LF mark shows the kind of lead-free solder.
(1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD
When repairing a lead-free solder PWB, use lead-free solder thread.
Never use conventional lead solder thread, which may cause a breakdown or an accident.
Since the melting-point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the
exclusive-use soldering iron is recommended.
Never use conventional lead solder thread, which may cause a breakdown or an accident.
Since the melting-point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the
exclusive-use soldering iron is recommended.
(2) NOTE FOR SOLDERING WORK
Since the melting-point of lead-free solder is about 220°C, which is about 40°C higher than that of conventional lead solder, and its soldering
capacity is inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land
separation or may exceed the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when
completion of soldering is confirmed.
Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.
If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron
tip after completion of soldering work.
If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer.
capacity is inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land
separation or may exceed the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when
completion of soldering is confirmed.
Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.
If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron
tip after completion of soldering work.
If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer.
Example:
5mm
Lead-Free
Solder composition
code (Refer to the
table at the right.)
code (Refer to the
table at the right.)
<Solder composition code of lead-free solder>
Solder composition
Sn-Ag-Cu
Sn-Ag-Bi
Sn-Ag-Bi-Cu
Sn-Ag-Bi-Cu
Sn-Zn-Bi
Sn-In-Ag-Bi
Sn-Cu-Ni
Sn-Ag-Sb
Bi-Sn-Ag-P
Bi-Sn-Ag
Bi-Sn-Ag
a
b
z
i
n
s
p
Solder composition code
a
(Danish)
ADVARSEL !
Lithiumbatteri – Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandoren.
(English)
Caution !
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the manufacturer.
Dispose of used batteries according to manufacturer’s instructions.
(Finnish)
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan
tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden
mukaisesti.
(French)
ATTENTION
Il y a danger d’explosion s’ il y a remplacement incorrect
de la batterie. Remplacer uniquement avec une batterie du
même type ou d’un type équivalent recommandé par
le constructeur.
Mettre au rebut les batteries usagées conformément aux
instructions du fabricant.
(Swedish)
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en ekvivalent
typ som rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens
instruktion.
(German)
Achtung
Explosionsgefahr bei Verwendung inkorrekter Batterien.
Als Ersatzbatterien dürfen nur Batterien vom gleichen Typ oder
vom Hersteller empfohlene Batterien verwendet werden.
Entsorgung der gebrauchten Batterien nur nach den vom
Hersteller angegebenen Anweisungen.
(For USA, CANADA)
“BATTERY DISPOSAL”
THIS PRODUCT CONTAINS A LITHIUM PRIMARY
(MANGANESS DIOXIDE) MEMORY BACK-UP BATTERY
THAT MUST BE DISPOSED OF PROPERLY. REMOVE THE
BATTERY FROM THE PRODUCT AND CONTACT YOUR
LOCAL ENVIRONMENTAL AGENCIES FOR INFORMATION
ON RECYCLING AND DISPOSAL OPTIONS.
“TRAITEMENT DES PILES USAGÉES”
CE PRODUIT CONTIENT UNE PILE DE SAUVEGARDE DE
MÉMOIRE LITHIUM PRIMAIRE (DIOXYDE DE MANGANÈSE)
QUI DOIT ÊTRE TRAITÉE CORRECTEMENT. ENLEVEZ LA
PILE DU PRODUIT ET PRENEZ CONTACT AVEC VOTRE
AGENCE ENVIRONNEMENTALE LOCALE POUR DES
INFORMATIONS SUR LES MÉTHODES DE RECYCLAGE ET
DE TRAITEMENT.
CAUTION FOR BATTERY REPLACEMENT
CAUTION FOR BATTERY DISPOSAL
SHARP CORPORATION
Document Solutions Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
Document Solutions Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
in any form or by any means,
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COPYRIGHT © 2010 BY SHARP CORPORATION
