Friedrich C24YJ Manual do Utilizador descarregar pdf (Página 44)

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Only for training and service purposes

6.1 The Product doesn’t operate at all

The operation check of the Indoor PCB Assembly

Procedure

1) The input voltage of power mod-

ule.

2) The output voltage of power mod-

ule.

4) IC04D(7805)

5) IC01A(KIA7036)

Specification

C230V ± 10%

: Check the rated voltage

2) 12V ± 3V

4) DC5V

5) The voltage of micom pin 19

: DC4.5V↑

Remedy

1) Check the power outlet.

2) Replace

PCB Assembly

4) Replace PCB Assembly

5) Replace PCB Assembly

Turn on the main power again.

Turn off the main power and

wait for 10 seconds.

Yes

A "Beeping" sound is made

from the indoor unit

Check the voltage of power supply (AC230V/AC2

08V, 60Hz) and

check for the following :

* The voltage of main power supply.

* The voltage applied to the unit.

* The connecting method of Indoor/Outdoor connecting cable (each color)

* The PCB Assembly (Fuse, Noise Filter, Power Module, Bridge Diode, etc.)

Operating condition of Micom is

O.K.

* Check, Remote controller & Receiver.

* Check CN-DISP1, CN-DISP2 of

indoor PCB

6. Electronic Parts

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