6. Self Diagnosis & Trouble Shooting
6-1. If the trouble is detected by self-diagnosis
To do list
☞ Checking method of Mid drawer Sensor
resistance CN30-"9"(Yellow) ↔ CN76-”1”
(Gray)
- Compare the temperature table after
measurement.
☞ Checking method of Mid drawer Sensor resistance
CN30-"9"(Yellow) ↔ CN76-”1” (Gray)
- Compare the temperature table after measurement.
Measuring voltage of CN30-"9"(Yellow)↔J23 JUMMPER are as below
Is the input voltage of IC01
MICOM Pin #87 normal?
YES
NO
No trouble with PCB and
temperature sensor.
Recheck the bad contact of
the connection.
YES
Measuring voltage of IC01 MICOM #87,
CN30-"9"(Yellow)and J23 JUMMPER
from PCB typical Ground part are similar.
→ Check the measure on the voltage of
Resistance, R314 due to the SMD
MICOM
Check the iced-solder, solder
bridging, disturbed solder
PCB Typical Ground
J23 JUMMPER
174
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