Mitsubishi Electric LGH-100RX5 -E, Manual

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10. Troubleshooting
n
Work precautions
• When removing or touching a transformer, printed circuit board or other parts, make sure to turn off the power
supply isolator.
• When removing the circuit board, always hold it at both ends and remove carefully so as not to apply force to
the surface mounted parts.
• When removing the circuit board, be careful of the metal edges on the board.
• When removing or inserting the connectors for the circuit board, hold the entire housing section. Never pull on
the lead wires.
• When servicing, be sure to recreate the malfunction two to three times before starting repairs.
• If it is thought that there is a printed circuit board malfunction, check for disconnected wires in the print pattern,
burnt parts or discoloration.
• If the printed circuit board is replaced, make sure that the switch settings on the new board are the same as the
old board.
]
Part names used in the following text correspond to those listed in the parts catalog.
10.1 Service Flow
Confirmation items
1 Condition of trouble – remote controller dis-
play, etc.
2
Frequency of trouble – date of start of opera-
tion and occurrence
3
Occurrence timing
4
Existence of drawings, equipment (including
controllers), cables, wiring, and settings.
Applicable models
Lossnay
LGH-15 to 200RX
5
-E
Remote controller
PZ-60DR-E
PZ-41SLB-E
PZ-52SF-E
■
*