Hitachi RAS-70YH5 Service Manual page 4

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(6) Use a three wire type soldering iron including a grounding wire.

Bare copper wire (for body earth)

Screw stop at the screwed

part using a rag plate

Use a high insulation mode (100V, 10M

(7) In checking circuits for maintenance, inspection or some others, be careful not to have the test probes of the

measuring instrument shortcircuit a load circuit or the like.

0305E Pg 01-05

Metal plate (of aluminium, stainless steel, etc.)

Fig. 3. Grounding of the working table

Fig. 4. Grounding a soldering iron

Staple

Soldering iron

or higher) when ordinary iron is to be used.

– 2 –

4/1/06, 10:47 AM

Working

table

Resistor of 1 M

(1/2W)

Earth wire

Grounding

wire

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