KX-NT511ARUW, KX-NT511ARUB - Panasonic Telephone Service Manual (repair manual). Page 14

14

This is for VoIP Communication Test Connection Chart.

• Unit for Test phone
• AC adaptor

1. Connect power plug (AC adaptor).
2. Push [1][ ][CONF] keys within 5 seconds after power on and turn off the Red LED.
3. Keep it until "Now Loading" is displayed on LCD.

Now Loading



*If "IPL start..."is displayed before "Now Loading" on LCD,it fails in the setting for Test mode
  Try agin from Step.1

4. Release keys. 
5. After 10 seconds,"HOOK Test" is displayed on LCD.
6. Press "SP-phone" key 6 times slowly.

"ACOUSTIC TEST" is displayed on LCD.

It is set to Loopback Test mode to connect "Send signal" with "Receive signal" by inputting two number.

Input number is 6 and 7 and the mode is as follows
(I) :  Input    6.SP-phoneMIC  7.HandsetMIC  
(O): Output  6.SP-phoneSP   7.HandsetSP   

1. Handset MIC  

  Handset SP

         I:HsMic / O:HsSp



 No sound

2. Handset MIC  

  SP-phone SP

         I:HsMic / O:Sp



 OK

This result shows there is a problem in the signal line of Handset SP.

Just power off.

AC  Adaptor
(AC Adaptor : PNLV226**)