DOWNLOAD Sharp DV-HR300H (serv.man3) Service Manual ↓ Size: 74.06 KB | Pages: 2 in PDF or view online for FREE

Power Cord Protection
To avoid any malfunctions of the Recorder, and to
protect against electric shock, fire or personal injury,
please observe the following.

Hold the plug firmly when connecting or
disconnecting the AC power cord.
Keep the AC power cord away from heating
appliances.
Never put any heavy object on the AC power cord.
Do not attempt to repair or reconstruct the AC power
cord in any way.
This Recorder is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER PRODUCT label is located on
the rear cover.
This product contains a low power laser device. To
ensure continued safety do not remove any cover or
attempt to gain access to the inside of the product.
Refer all servicing to qualified personnel.

For DV-HR300S/H, HR350S
This Recorder can be used only where the power 
supply is AC 220V-240V, 50Hz. It cannot be used 
elsewhere.

For DV-HR300X
This Recorder can be used only where the power 
supply is AC 230V-240V, 50Hz. It cannot be used 
elsewhere.

CAUTION-LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM
OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VORSICHT-LASERSTRAHLUNG, WENN GEFFNET. BLICKEN SIE NICHT IN DEN STRAHL
UND BETRACHTEN SIE DIESEN NICHT DIREKT MIT OPTISCHEN INSTRUMENTEN.

ATTENTION-RADIATION LASER EN CAS D’OUVERTURE. NE PAS FIXER LE
FAISCEAU NI REGARDER DIRECTEMENT DES INSTRUMENTS OPTIQUES.

VARNING-LASERSTR LNING N R DENNA DEL  R  PPNAD

. STIRRA EJ IN

I STR LEN OCH BETRAKT A EJ STR LEN MED OPTISKA INSTR UMENT.

VARO ! AVATTAESSA OLET ALTTIINA LASERS TEI LYLLE.  L   TUIJOTA
S TEESEEN  L K  KA

TSO SIT  OPTISEN LAITTEEN LAPI .

VARNING-LASERSTR LNING N R DENNA DEL  R  PPNAD

. STIRRA EJ IN I

STR LEN OCH BETRAKT A EJ STR LEN GEMON OPTISKT INSTR UMENT.

ADVARSEL-LASERSTR LING N R DEKSEL  PNES . STIRR IKKE INN I
STR LEN ELLER SE DIREKTE MED OPTISKE INSTR UMENTER.

ADVARSEL-LASERSTR LING  VED  BNING.  SE IKKE IND I STR LEN-
HELLER IKKE MED OPTISKE INSTRUMENTER.

SA005WJ

1 Employing lead-free solder

"Operation (R) PWB, Operation (L) PWB, Power PWB and Tuner PWB" of this model employs lead-free solder. The
LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character
following LF shows the type of lead-free solder.

Example:

2 Using lead-free wire solder

When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40

°

C, we recommend you

to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldening bit,
contact our service station or service ranch in your area.

3 Soldering

As the melting point of lead-free solder (Sn-Ag-Cu) is about 220

°

C which is higher than the conventional lead solder

by 40

°

C, and as it has poor solder wettabillty, you may be apt to keep the soldering bit in contact with the PWB for

extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature
of parts may be excoeded, remove the bit from the PWB as soon as you conurm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corroded. Make sure to tum on
and off the power of the bit as required.
if a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after
every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

Becareful when replacing parts with polarity indication on the PWB silk.

Indicates lead-free solder of tin, silver and copper.

Part No.

★

Description

Code

ZHNDAi123250E

J

φ

0.3mm

250g(1roll)

BL

ZHNDAi126500E

J

φ

0.6mm

500g(1roll)

BK

ZHNDAi12801KE

J

φ

1.0mm

1kg(1roll)

BM

Lead-free wire solder for servicing