2.2. Precaution of Laser Diode
2.3. Service caution based on legal restrictions
2.3.1. General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the
printed circuit boards used for this equipment in considering the globally environmental
conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is
the alloy mainly consists of tin (Sn), silver (Ag) and Copper (Cu), and the melting point of the
lead free solder is higher approx.30 degrees C (86°F) more than that of the normal solder.
Definition of PCB Lead Free Solder being used
The letter of “PbF” is printed either foil side or components side on the PCB
using the lead free solder.
(See right figure)
Service caution for repair work using Lead Free Solder (PbF)
5
Содержание DMR-EH55EC
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Страница 17: ...5 Put deck upward and push out Tray by Eject Pin JZS0484 or minus screw driver small ...
Страница 48: ...10 7 DV Jack P C B 1 Remove 1 Screw A to remove DV Jack P C B 10 8 HDD 36 ...
Страница 49: ...1 Remove ATAPI Connector and HDD Power Connector 2 Remove 4 Screws A to remove HDD Angle with HDD 37 ...
Страница 55: ...11 1 2 Checking and Repairing of RAM Digital P C B Module 43 ...
Страница 56: ...11 1 3 Checking and Repairing of Main P C B 44 ...
Страница 57: ...11 1 4 Checking and Repairing of HDD 45 ...
Страница 58: ...11 2 Caution for Replacing Parts 11 2 1 Items that should be done after replacing parts 46 ...
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