Read Panasonic KX-NT511ARUW / KX-NT511ARUB Service Manual online
16
KX-NT511ARUW/KX-NT511ARUB
8 Service Mode
8.1.
Factory Setting
8.1.1.
How to Clear User Setting
Units are reset to the Factory settings by this operation (Erase stored Phone numbers, Caller list and etc.).
This operation should not be performed for a usual repair.
This operation should not be performed for a usual repair.
To perform IP Reset
1. Connect power plug(AC adaptor)
2. Press "1", "5", "9" and " " at the same time within 5 seconds after power on.
Keep it until "Now Loading" is displayed on LCD.
3. Release keys.
4. After 10 seconds,all LEDs turn on.
4. After 10 seconds,all LEDs turn on.
Beep sounds is heard.
(LCD displays [Please wait...])
(LCD displays [Please wait...])
5. Power off.
9 Troubleshooting Guide
9.1.
No Operation
9.1.1.
Power ON Error
Yes
No
No
No
Yes
Yes
Confirm the LCD Display.
Is it working?
Is it working?
END
When input any POWER(AC adaptor).
Does RINGER-LED(
Does RINGER-LED(
Red
) light?
Does RINGER-LED(
Red
) light out?
Check the soldering.
Resolder or replace parts as needed.
Resolder or replace parts as needed.
Related parts: Power supply
See 9.1.2 AC Adaptor. (
See 9.1.2 AC Adaptor. (
P.17
)
Check the TEST POINT(ST0-ST3).
See Table-1. (
See Table-1. (
P.18
)
Related parts: RA110,L103,C129,C130,C131,
C132,C133,C134,C135,R140,
R141,R142,R143,R145,Q106,
CN2,LCD Module
R141,R142,R143,R145,Q106,
CN2,LCD Module
See 9.2 LCD Does Not Operate. (
P.22
)
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