Mitsubishi Electric MS-07NV - E2 (WH), Руководство по обслуживанию

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Replace the receiver.
Replace the remote controller.
Replace batteries.(see page 37.)
Check the model name of remote
controller.
Repair the indoor fan motor.
Resolder it.
Disconnect lead wires from connector CN211 on indoor electronic control P.C. board.
Measure resistance between lead wires No.1 and No.4 and then No.1 and No.2(MS-12/18/24)
No.1 and No.3 and then No.2 and No.3(MS-07/09)
Turn OFF power supply.
Check connector CN211 visually.
Reconnect the lead
wires.
40
Yes
Yes
Check of indoor fan motor
A
Check of receiver P.C. board
B
Indoor fan does not operate.
Are lead wires connected? Is soldered point normal?
Replace the indoor electronic control P.C.
board.
Is resistance 0 (short circuit) or
∞
(open circuit)?
Indoor unit operates by pressing the EMERGENCY OPERATION switch, but does not operate with the remote controller.
Turn on a radio to AM and press switch on
remote controller.
Is noise heard from radio?
Are there any fluorescent lights of
inverter or rapid-start type within
the range of 1m?
Turn ON power supply.
Measure the voltage between receiver P.C. board connector No.2
(+) and No.1(MS-12/18/24)
indoor electronic control P.C. board connector LD101 No.2 and JPG(MS-07/09)
when remote controller button is pressed.
Is the voltage approx. 4V DC?
Replace the indoor electronic control P.C.
board.
●
Re-install the unit away from lights.
●
Attach a filter on receiving part.
Yes ( 0 or
∞
)
No
(others)
Yes
No Yes No
Is.LCD display on remote con-
troller visible?
Remove batteries and then set them back.
Check if the unit operates with remote
controller.
Yes
Does the unit operate with remote
controller?
Yes
OK
No
(not clear)
Yes
No
No
No(5V or 0V DC)
{
}
No
{
}
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