32PD3000 / 42PD3000
6
Lead Free Solder
This product uses lead free (unleaded) solder to help preserve the environment. Please read these instructions
before attempting any soldering work.
Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free
solder can splatter at high temperatures (600 °C).
• Lead free solder indicator
Printed circuit board Assemblies using lead free solder shown below are engraved with an "F" following
Board Name.
• Properties of lead free solder
The melting point of lead free solder is 40-50 °C higher than one of leaded solder.
•
When servicing solder
o Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended.
o Although servicing with leaded solder is possible, there are a few precautions that have to be
taken.(Not taking these precautions may cause the solder not to harden properly and lead to
consequent malfunctions.)
• Precautions when using leaded solder
o
Remove all lead free solder from soldered joints when replacing components.
o
If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly
after the lead free solder has been completely melted (do not apply the soldering iron without
adding solder).
When servicing soldering iron
A soldering iron with a temperature setting capability (temperature control function)is recommended.
The melting point of lead free solder is higher than one of leaded solder. Use a soldering iron that maintains a
high stable temperature (large heat capacity),and that allows temperature adjustment according to the part
being serviced, to avoid poor servicing performance.
Recommended soldering iron:
Soldering iron with temperature control function (temperature range:320-450 °C)
Recommended temperature range per part:
Soldering Part
Soldering iron temperature
PCB with surface mount devices
320 °C ±30 °C
PCB without surface mount devices
380 °C ±30 °C
Chassis, metallic shield, etc.
420 °C ±30 °C
PCBs which use lead free solder
• FC4PDP board (AVC block)
• SIGNAL/SOUND board (MONITOR block)
• SP terminal L/R board, FILTER board, LED board (MONITOR block)
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