Matsushita Electric KM40108849C3, Service Manual

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Ref. No. Procedure Shown in Fig —. To remove —. Remove —.
1 1 1 Lower Cabinet Screws (2.6×12) . . . . . . . . . . . . . (
2 1 ~ 2 2 Printed Circuit Board Remove the P.C.Board
7. HOW TO REPLACE FLAT PACKAGE IC
7.1. Preparation
- SOLDER
Sparkle Solder 115A-1, 115B-1 or Almit Solder KR-19, KR-19RMA
- Soldering iron
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 between 60 ~ 80 W iron, but beginner might
damage foil by overheating.)
- Flux
HI115 Specific gravity 0.863
(Original flux will be replaced daily.)
7.2. Procedure
1. Temporary fix FLAT PACKAGE IC by soldering on two marked 2
pins.
*Most important matter is accurate setting of IC to the
corresponding soldering foil.
2. Apply flux for all pins of FLAT PACKAGE IC.
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