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Model
KX-TG6421CAM KX-TG6421CAT KX-TG6422CAT KX-TGA641RUM KX-TGA641RUT
Pages
106
Size
2.62 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS ANSWERING SYSTEM
File
kx-tg6421cam-kx-tg6421cat-kx-tg6422cat-kx-tga641ru.pdf
Date
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Panasonic KX-TG6421CAM / KX-TG6421CAT / KX-TG6422CAT / KX-TGA641RUM / KX-TGA641RUT Service Manual ▷ View online

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KX-TG6421CAM/KX-TG6421CAT/KX-TG6422CAT/KX-TGA641RUM/KX-TGA641RUT
12.4. How to Replace the LLP (Leadless Leadframe Package) IC
12.4.1. Preparation
• PbF (: Pb free) Solder
• Soldering Iron
Tip Temperature of 700
°F ± 20°F (370°C ± 10°C)
Note:
We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less 
experience could overheat and damage the PCB foil.
• Hot Air Desoldering Tool
Temperature: 608
°F ± 68°F (320°C ± 20°C)
12.4.2. Caution
• To replace the IC efficiently, choose the right sized nozzle of the hot air desoldering tool that matches the IC package.
• Be careful about the temperature of the hot air desoldering tool not to damage the PCB and/or IC.
12.4.3. How to Remove the Shield Case
Note:
If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations.
1. Cut the case along perforation.
2. Remove the cut part.
3. Cut the four corners along perforation.
4. Remove the reminds by melting solder.
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KX-TG6421CAM/KX-TG6421CAT/KX-TG6422CAT/KX-TGA641RUM/KX-TGA641RUT
12.4.4. How to Install the Shield Case
Note:
• If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations.
• Shield case’s No. : PNMC1013Z
1. Put the shield case.
2. Solder the surroundings.
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KX-TG6421CAM/KX-TG6421CAT/KX-TG6422CAT/KX-TGA641RUM/KX-TGA641RUT
12.5. Terminal Guide of the ICs, Transistors and Diodes
12.5.1. Base Unit
12.5.2. Handset
12.5.3. Charger Unit
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KX-TG6421CAM/KX-TG6421CAT/KX-TG6422CAT/KX-TGA641RUM/KX-TGA641RUT
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