Panasonic KX-TCA130FXS, Service Manual

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Items Check
Point
Procedure Check or
Replace Parts
(S) SP phone Audio Check
and Confirmation
- 1. Link to Base which is connected to Line Simulator.
2. Set line voltage to 48V and line current to 40mA.
3. Set the handset off-hook using SP-Phone key.
4. Input -20dBm/1KHz to Line I/F and measure Receiving level at SP1 and SP2.
5. Confirm that the level is -7dBm ± 2dBm and that the distortion level is < 5%.
(vol = 3)
IC1, IC2, C37,
C68, C91,
R25, R26,
C20, C12,
C14, C90,
C87, C89,
R29, R37,
R38, C92,
R80, C13,
R35, C75,
C86, C15, D8,
C16, C77,
C38, R36,
R74, C80
(T)* EEP-ROM Confirmation - 1. EEP-ROM Confirmation (Execute the command
“ChkTCA130FXrev020_15.bat”).
2. Confirm the returned check sum Value (check sum is 9054).
IC10, IC1,
R39, R40
14.2. Troubleshooting for Speakerphone
When the customer’s telephone line corresponds to the following conditions, and the transmission signal of SP-Phone is
interrupted, by performing the next set up to a cordless handset, symptom will improve to some extent.
Conditions
1. A problem of customer’s line: Low line loss
ex.) The customer is using optical fiber, ISDN terminal adaptor, or PBX.
2. A problem of the other party´s line: Noise from the phone
ex.) The other party is using cellular phone. The background noise is very loud.
Setting Method
· Change the address of EEPROM (0×0144) from 0×00 to 0×01.
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KX-TCD300FXS / KX-TCD300FXT / KX-TCA130FXS / KX-TCA130FXT