KX-TGE510RU, KX-TGEA51RU - Panasonic Telephone Service Manual (repair manual). Page 4

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There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper
(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu), or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the
manufacturer's specific instructions for the melting points of their products and any precautions for using their product with other
materials. 
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3 mm, 0.6 mm and 1.0 mm.

1. Unplug the AC inlet and connect the two prongs of the plug with a jumper wire.
2. Measure the resistance value with ohmmeter between the jumpered AC plug and all the terminals as shown in following 

figures.

3. If the measurement is outside the specified limits, there is a possibility of shock hazard. The equipment should be repaired

and rechecked before it is returned to the customer.

When discarding P. C. Board, delete all personal information such as telephone directory and caller list or scrap P. C. Board.

0.3 mm X 100 g

0.6 mm X 100 g

1.0 mm X 100 g

Base unit, 
Charger, 
etc

Exposed 
metal part

AC inlet

Ohmmeter

Resistance = more than 10MΩ (at DC 500V, for 2 seconds)