Samsung AR09HSFSPWKNEE, Руководство по обслуживанию, Страница: 111 / 150

Sa m s u ng El ectronics 10-7
10-2-6 Outdoor te m perature sensor error
Indoor display
3-LED DI S PLAY
7- S EG DI S PLAY
DE S CRIPTION
LED1 LED2 LED3
E221 Ou t d oor te m p erat u re sensor error
Outdoor display
Ou t d oor te m p erat u re sensor error
LED ON LED BLINKING LED OFF
1 . C hec kl ist :
1) I s the sensor connecte d correct l y ?
2) I s the sensor pl ace d correct l y ?
3) D oes the b oth ter m ina l o f sensor satis f y the resistance v a lu e in accor d ance w ith te m p erat u re ?
4) I s the resistance v a lu e o f sensor connection pull-up correct ?
2 . T ro ubl eshooting p roce du re
YE S
E xchange the Ou t d oor PBA
YE S
E xchange the Ou t d oor PBA
NO
NO
NO
I s the sensor resistance v a lu e
"B" 10k oh m ±3 % at the roo m te m p erat u re
o f 25
I s the sensor connector ("A") connecte d
correct l y in accor d ance w ith a co l or ?
YE S
YE S
I s the connection o f p o w er ca bl e
an d co mm u nication ca bl e nor m a l?
Sensor R e pl ace
Sensor resistance v a lu e : 20 - 12 . 09k oh m
30 - 8 . 31k oh m
35 - 6 . 94k oh m
40 - 5 . 83kk oh m
R econnect the sensor connector.
C onnect the sensor to PBA connector
s uppl y p o w er an d m eas u re the v o l tage o f
"B" in the connector
B e l o w 0 . 5Vd c or Ov er 4 . 5Vd c ?
M ico m error or connector chec k
MODEL "A" "B"
ALL CN251 CN251 #1-#2