Panasonic KX-TCA275RU Service Manual ▷ View online
37
KX-TCA275RU
8.7.2.
Speakerphone Mode
8.8.
Password Trouble
8.8.1.
User Password is forgotten.
Test command "PWC" set user password to "1234".
8.8.2.
System Lock Password is forgotten.
Test command "SLC" unlock the system lock.
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KX-TCA275RU
9 Service Fixture & Tools
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KX-TCA275RU
10 Disassembly and Assembly Instructions
10.1. Handset
10.2. Charger Unit
Shown in Fig.-
To Remove
Remove
1
Rear Cabinet
Screws (2
× 8)..........(A) × 4
2
Follow the procedure.
3
Main P.C. Board
Main P.C. Board
Shown in Fig.-
To Remove
Remove
4
Lower Cabinet
Screws (2.6
× 12)..........(B) × 2
5
Main P.C. Board
Main P.C. Board
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KX-TCA275RU
11 Measurements and Adjustments
11.1. Check Procedure (Handset)
11.1.1. Preparation
11.1.1.1. Equipment Required
• DECT tester: Rhode & Scorers, CMD 60 is recommended.
• Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).
• Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).
Hewlett Packard, 53131A is recommended.
• DC power: it must be able to output at least 1A current under 3.8V for Handset, 9V for Tool.
• Digital multi-meter (DMM): it must be able to measure voltage and current.
• Oscilloscope
• Digital multi-meter (DMM): it must be able to measure voltage and current.
• Oscilloscope
11.1.1.2. Tool and PC
• EEPROM serial Tool
Tool: PSZZ2CA155EU
• PC which has “flash program.exe”.
11.1.2. PC Setting
11.1.2.1. Connections
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