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P65
P66
P67
P70
P71
P72
P73
P74
P75
P76
P77
P80
P81
P82
P83
P84
P85
P86
P87
AN7
AN6
6. HOW TO REPLACE THE FLAT PACKAGE IC
If you do not have the special tools (for example: SPOT HEATER) to remove the SPOT
HEATER'S Flat IC, If you have solder (large amount) a soldering iron and a cutter knife, you can
easily remove IC's even though large than 100 pin.
6.1. PREPARATION
- SOLDER / Sparkle Solder 115A-1, 115B-1 or Almit Solder KR-19, KR
-19RMA
- Soldering iron / Recommended power consumption is between 30
W to 40 W. / Temperature of Copper Rod 662 ± 50°F (350 ± 10°C) /
(An expert may handle a 60~80 W iron, but beginner might damage
foil by overheating.)
- Flux / HI115 Specific gravity 0.863 / (Original flux should be
replaced daily.)
6.2. FLAT PACKAGE IC REMOVE PROCEDURE
41
Output
42
Output
43
Output
44
Output
45
Output
46
Output
47
Output
48
Output
49
Output
50
Output
51
Output
52
Input/
Output
53
Input/
Output
54
Input/
Output
55
Input/
Output
56
Output
57
Output
58
Output
59
Output
61
Input
62
Input
11
SP-Phone power control
Side tone control
Select A-Law/m-Law
SP-Phone mic mute control
Handset vol. Control 1
Handset vol. Control 2
Handset vol. Control 3
Read enable terminal of G/A (IC1) (Active Low)
Write enable terminal of G/A (IC1) (Active Low)
Address bus 1 for G/A (IC1)
Address bus 2 for G/A (IC1)
Data bus 1 for G/A (IC1)
Data bus 2 for G/A (IC1)
Data bus 3 for G/A (IC1)
Data bus 4 for G/A (IC1)
SP-Phone vol. Control 1
SP-Phone vol. Control 2
SP-Phone vol. Control 3
SP-Phone vol. Control 4
Select Model/Area cord
Select Ringer position
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