Panasonic KX-TA1232, Service Manual

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No. Test Items Test Method Check Items
1 DTMF G/R Test 1) Enter "M1 1" from the data
terminal.
2) Enter "M1 2" from the data
terminal.
1) Make sure response is
2) Make sure response is
2 Extension Board Test
[Digital Channel Loop
Back]
1) Enter "M3 1" from the data
terminal.
2) Enter "M3 2" from the data
terminal.
1) Make sure response is
0000".
2) Make sure response is
0000".
3 Extension Board Test
[Digital Data Loop Back]
1) Enter "M4 1" from the data
terminal.
2) Enter "M4 2" from the data
terminal.
1) Make sure response is
2) Make sure response is
4 CO Board Test
[Analog Channel Loop
Back]
1) Enter "M5 0" from the data
terminal. 1) Make sure response is
5 Doorphone Board Test 1) Enter "M9" from the data
terminal. 1) Make sure response is
6 Conference Trunk Test 1) Enter "MC" from the data
terminal.
1) Make sure response is
11. 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.
11.1. 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.)
11.2. FLAT PACKAGE IC REMOVE PROCEDURE
1. When all of the IC lead can not been seen at the standard degree,
fill with large quantities of solder.
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