Samsung RT38 Service Manual page 48

TROUBLESHOOTING
3) When the DEF-Sensor is defective
ERROR CODE
DATA1. Temp Table
** Sensor Resistance Reading Location **
F-DEF : Between CN30 #4 and CN76 #1
** 0Ω : Short / ∞Ω : Open
Refer to Circuit Diagram
Sensor MICOM/Connector #
Between Connector CN30"-
F
"4"(RED) and CN76-"1"
DEF
(BRN)
Voltage : Between 4.6V ~ 0.6V
Voltage at IC10 MICOM #
24 is the same as the value
between CN30-"4"(RED)
and CN76-"1"(BRN).
Start
MAIN PCB Connector
CN30 is inserted
properly?
Yes
F-DEF Sensor is
normal?
Yes
Voltage between MAIN
PCB Connector CN30-"4"(RED)
and CN76-"1"(BRN)
Yes
Input Voltage at IC10
MICOM Pin #24 is normal?
Yes
PCB and Temp Sensor are normal.
Check the connector contact.
53
No
Connector contact defect /
Reconnect
No
Replace Temp Sensor
Value < 0.6V or Value > 4.6V
Check the wire connection
No
Check Soldering Defect & Short