Reset Base Unit Pin To Default (0000) -When There Is No Handset Registered; Symptom; Thinkable Situation; Remedy - Panasonic KX-TCD420GS Service Manual

- To exit the operation, press
For Service Hint:
* : If the current 4-digit PIN is forgotten, press
will be able to enter new PIN.

6.3.3. Reset Base Unit PIN to Default (0000) -When There is NO Handset Registered-

6.3.3.1. Symptom

There is no way to reset base PIN when there is no handset registered to the base.

6.3.3.2. Thinkable Situation

- Customer may ask to reset base PIN because they forget it.
- Customer may bring only a base unit for repair and there is no handset
registered to the base (Need to register another handset to the base to
confirm if the unit works properly after repair).
- When original handset has broken and customer purchased a new one,
if customer forget base PIN, customer cannot register the new handset
and may ask to reset the PIN.

6.3.3.3. Remedy

<Preparation>
Refer to JIGs and PC
<Connection>
1. Solder a pin or lead wire to GND, SDA, and SCLK on base PCB.
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any time.
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