Hitachi RAS-E08H2A Service Manual page 4

(6)Use a three wire type soldering iron including a grounding wire.
Metal plate (of aluminium, stainless steel, etc.)
Bare copper wire (for body earth)
Screw stop at the screwed
part using a rag plate
Use a high insulation mode (100V, 10M or higher) when ordinary iron is to be used.
(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.
Staple
Fig. 3 Grounding of the working table
Soldering iron
Fig. 4 Grounding a soldering iron
– 2 –
Working
table
Resistor of 1 M (1/2W)
Earth wire
Grounding
wire