How To Replace Flat Package Ic; How To Replace Flat Package Ic - Panasonic KX-F900 Service Manual

I KX-F900 1
• PREPARATION
• PROCEDURE
HOW TO REPLACE FLAT PACKAGE IC
-SOLDER
• Soldering iron
• Flux
Sparkle Solder 115A-1, 115B-1
OR
Almit Solder KR-19, KR-19RMA
Recommended power consumption will be between 30 W to 40 W.
Temperature of Copper Rod 662 + 50°F (350 +10°C )
(An expert may handle 60~80 W iron, but beginner might
damage foil by overheating.)
HI115 Specific gravity 0.863
(Original flux will be replaced daily.)
1. Temporarily fix FLAT PACKAGE IC by soldering on two marked pins.
-Temporary soldering point.
*Check accurate setting of IC to the corresponding soldering foil.
2. Apply flux for all pins of FLAT PACKAGE IC.
_._ ..... Flux
3. Solder using specified solder, in direction of arrow, by sliding the soldering iron.
Soldering iron
Specified solder
• MODIFICATION PROCEDURE OF BRIDGE
1. Re-solder slightly on bridged portion.
2. Remove remaining solder along pins using soldering iron as shown in below figure.
bddge
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