DOWNLOAD Sharp AR-M316 (serv.man11) Service Manual ↓ Size: 6.52 MB | Pages: 127 in PDF or view online for FREE

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. 

The alphabet following the LF mark shows the kind of lead-free solder.

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 recommendable.

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.

5mm

Lead-Free

Solder composition
code (Refer to the
table at the right.)

Solder composition

Sn-Ag-Cu

Sn-Ag-Bi
Sn-Ag-Bi-Cu

Sn-Zn-Bi

Sn-In-Ag-Bi

Sn-Cu-Ni

Sn-Ag-Sb

Bi-Sn-Ag-P
Bi-Sn-Ag

a

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Solder composition code

a

   !"#$%&'()

 *+&,-./0 12 3

 

456789:; < =>8
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<LM <DKN OP QRS+TUVW= XY

 

LMJN ZZP Q?@ DKN OP QRS++[9\J]^YW _`a'bcJd'BK
JAefghGijklmn opqr\J*^Yb;st uv^`MW TUh>8
wxyJzpS+TUS{|}J~GWSY'€ ‚ƒ„‚  XSB…>8
S{'†1J‡…+ +ˆ‰';Š‹^Y45ŒS{ Ž>8
45`'S{J>‘^`#’“^”•T–GKS{ Ž>8

5mm

a

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s

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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. 

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2007 July Printed in Japan