Samsung RS2622 Manuel D’Utilisation

46

Check the exchange of fuse and

disconnection cause.

- Check the connections of main PCB.
- Check the connections between upper

hinge and CABI-door.

- Check the connections between door and

panel PCB.

At the power of main PCB, the 115V power and a high-voltage over DC
170V occur. Please take care of yourself on repair and measurement.

Is 115V AC fuse down?

Is power 115V  

both terminals of CN10?

Is fuse on main PCB down?

Is DC 170V impressed to both 

terminals of BD1?

Top S/W 233Y

Is the voltage impressed DC 5.8V 

between C and S ?

Is 12V impressed to both 

terminals of C102?

Is the load such as relay normal?

Is  normal the load, such as 

relay?

Is there any PCB soldering, short or broken?

Normal

Start

To check the main PCB, please apply
descriptions of operation and
references in the manual.

YES

Check the assembly and connection of

electric wires.

NO

Exchange fuse

115V 2A?

YES

Check the PCB pattern and replace BD1.

NO

Replace PCB assembly.

NO

1) Replace D104 (D5S6M).
2) Replace PCB assembly.

NO

Replace REG1(KA7805)

NO

1) Check the assembly of electric wires and troubleshoot.
2) Replace the panel PCB.

NO

1) Replace the corresponding relay.
2) Check lead wire for contact.

NO