Samsung RF267AEBP Manuel D’Utilisation

TROUBLESHOOTING

4-2-6. If Power is not supplied

Caution

At the power of main PCB, the
AC115V power and a high-voltage
over DC 170V are occurred.Please
take care of yourself during repair
and measurement.

Check in SMPS PBA

Start

- Refer to the function and

reference parts in the manual
when check the MAIN PCB

Connect plug again,
check the plug loosening

Check the assembly and wire
connection

1) Replace FUSE AC 250V 2.0A
2) Replace PCB ASS’Y

Replace PCB ASS'Y

1) Check REG1 (KA7805)
2) Replace PCB ASS'Y

1) Check assembly wire and repair
2) Replace Panel PCB

1) Solder again
2) Replace PCB MAIN

- Check MAIN PCB connection
- Check the connections between

cabinet and door

- Check the connections between

door and panel PCB

1) Check the contact of lead wire
2) Replace the applicable relay / PCB MAIN

1) Check PCB PATTERN and replace BD1
2) Replace PCB ASS'Y

Is the plug connected in?

Is power 115V applied to the

both terminals of SMPS PCB

CN70 #11-#9?

Is fuse on the SMPS

PCB down?

Is DC170V

applied to the both

terminals of BD1+,-

Is DC5.8V

applied between TOP

switch 246Y C and S?

Is 13V applied to the both

terminals of C107?

Is 5V applied to the both

terminals of C109?

Does Panel PCB

operate normally?

Is the load (i.e. Relay)

normal?

Is there any PCB

soldering, short,

breakage?

Normal(Recheck)

☞ Checking method of voltage

CN70 input ; CN70#9(Red)

↔ #11(Gray)

AC voltage

☞ Checking method of DC 2nd output voltage

REG1 input ; Regulator 7805

→same as C107

terminals.
DC 13.0V

± 0.8V

☞ Checking method of DC 2nd output voltage

REG1 output ; Regulator 7805

→ same as C109

terminals.
DC 5V

± 0.5V

AW-SEM Transform(RF267,2#3957D8

2009.8.20 4:54 PM

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