Hitachi RAM-68NP3B, Руководство по обслуживанию, Страница: 4 / 79

– 3 –
(6) Use a three wire type soldering iron including a grounding wire.
Bare copper wire (for body earth)
Working table
Resistor 1 M (1/2W)
Earth wire
Fig. 3. Grounding of the working table
2
Screw stop at the screwed
part using a rag plate
Soldering iron
Grounding wire
Fig. 4. Grounding a solder iron
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 short circuit a load circuit or the like.
Metal plate (of aluminium, stainless steel, etc.)
Staple