– 3 –
(6) Use a three wire type soldering iron including a grounding wire.
Bare copper wire (for body earth)
Working
table
Resistor of 1 M (1/2W)
Earth wire
Fig. 3. Grounding of the working table
Screw stop at the screwed
part using a rag plate
Soldering iron
Grounding
wire
Fig. 4. Grounding a soldering 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 shortcircuit a load circuit or the like.
Metal plate (of aluminium, stainless steel, etc.)
Staple
Содержание RAC-50YH4
Страница 37: ... 9 MODEL RAS 50YH4 CIRCUIT DIAGRAM ...
Страница 38: ...CIRCUIT DIAGRAM MODEL RAC 50YH4 41 ...
Страница 40: ... 43 COMPONENT SIDE SOLDERING SIDE MODEL RAS 50YH4 RECEIVING P W B MARKING ON P W B ...
Страница 41: ... 44 MODEL RAC 50YH4 MAIN P W B Marking on P W B COMPONENT SIDE ...
Страница 90: ... 100 SELF DIAGNOSIS LIGHTING MODE MODEL RAC 50YH4 ...
Страница 108: ... 2 465 56 0 4 0 114 70 6 1 4 5 50Y ...
Страница 110: ... 0 PARTS LIST AND DIAGRAM OUTDOOR UNIT MODEL RAC 50YH4 ...
Страница 112: ...HITACHI SM0226 Printed in Malaysia RAS 50YH4 RAC 50YH4 ...