Samsung RS2521 Specifications download pdf (Page 67)

MICOM Voltage

#49; F-Room,

#50; R-Room

DOOR OPEN : 5V

DOOR CLOSE : 0V

Diagnostics

8-6) When Alarm Sound continues without stop

1. When Door gets open, Door Open alarm ("Ding Dong") goes off in 2 minutes with Door opened.When Door

remains open after this, the alarm goes off every minute.

2. When Door Switch is not pressed well, MICOM considers it as opened and alarming sound goes off.

Room Lamp becomes OFF in 10 minutessince it detectsDoor Open (based on R600a).In this case, even though

Door gets opened, Room Lamp does not comes ON.

1) When “Ding Dong ” sound continues

Start

Chhange PCB / Check ON/OFF again

Note

Contact trouble of Connector,

Insert it again

Is insertion of MAIN

PCB Connector (CN30)

normal?

YES

Repair DOOR S/W

pressing part

Does DOOR S/W come

in & out well?

YES

Check wire of DOOR SWITCH

Is voltage of MICOM

#49,#50 according DOOR

SWITCH ON/OFF?

YES

2) When “Beep Beep ” sound continues

Start

Check Lead Touch & foreign substances

around TEST S/W (MICOM #47)

Cancel Forced Operation/ Defrost

Is Forced Operation/

Defrost selected?

YES

PCB is normal

Does buzzing sound go

off when plugging out

and plugging in again?

YES

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Samsung RS2521 Specifications Page 67

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