3. Caution for LEAD-FREE soldering work
For this equipment, parts compatible with lead-free materials are used. Please observe the following precautions,
when performing any soldering work.
1) Use lead-free solder for substrates mounted with lead-free parts. If you use eutectic solder by mistake, solder will
not fuse well because of the difference in fusion point.
2) Fusion Point
Lead-free solder: 220°C
Eutectic solder: 183°C
3) Solder composition of Lead-free solder: Sn-3.0Ag-0.5Cu
[Maker ] [Type]
Nihon Genma DHB-RMA NP303-###
Senju metal ESC F3 M705E-###
(#: This mark shows the diameter of the solder wire.)
4) When working with lead-free solder always use a temperature adjustable soldering iron. Moreover, the power
consumption of the soldering iron must use from 25W to 75W.
[Solder Iron tip temperature and contact time]
Category of Parts
Lead-free solder
Eutectic solder
*SMD Chip
The Parts of Chip type
300-320°C(1-3sec) 260-280°C(1-3sec)
*SMD QFP
The Parts (IC) of Quad Flat Pack Package type
320-350°C(1-3sec) 280-300°C(1-3sec)
Heat sink
Heat sink
360-380°C(1-3sec) 320-420°C(1-3sec)
The Parts of Axial or Radial type
(The Electric Parts other than the above-mentioned.
Ax, RD
Ex.: IC, Transistor, Resistor, Capacitor)
340-370°C(1-3sec) 350-390°C(1-3sec)
Summary of Contents for Multi Sync EA221WM
Page 24: ...3 4 3 3 Remove the shield 13 13 14 15 CN602 R L ...
Page 25: ...3 5 Shield_USB 16 Shield for Back Light 16 14 CN709 14 14 ...
Page 27: ...3 7 20 CN801 CN802 CN803 CN804 19 ...
Page 29: ...3 9 CN701 CN402 CN301 25 25 14 ...
Page 30: ...3 10 26 26 CN601 CN604 CN902 14 ...
Page 31: ...3 11 SYMBOL 12 Fix the cable on the position in the above photo with BLACK TAPE 27 50mm 12 ...