58
Subordinate
R Defrost heater
F Defrost heater
Comp
Comp-circulation fan
R-Circulation fan
F-Circulation fan
R-Lamp
F-Lamp
Evaluation of mea-
surement result
Measurement
terminal
CN70
⑤
-
①
CN70
⑦
-
①
CN70
⑨
-
①
CN71
⑦
-
①
CN71
⑤
-
①
CN70
③
-
①
CN71
⑨
-
①
CN71
③
-
①
1. Measure resistance between the terminals and
check for malfunctioning of a load and wire
connection.
1. R sensor measures resistance of CN30
between
②~⑤
.
2. Freezer sensor measures resistance of CN30
between
①~⑤
.
3. R-defrost sensor measures resistance of CN30 between
④~⑤.
4. F-defrost sensor measures resistance CN30 between
③~⑤
.
5. The measured value above is compared to the sensor specification and the temperature table in
speciication found in the manual.
* Unplug the power cord and disconnect the
connector from the main PCB CN70, 71 and
measure the following:
* Disconnect the connector from the main PCB
CN30.
* Resistance will be lowered while the
temperature rises due to a NTC type sensor.
Ref. 4) Check sensors
Ref. 3) Check a load
Summary of Contents for RB1955SWRB1955SH
Page 7: ...5 WARRANTY INFORMATION 7 ...
Page 11: ...11 Refrigeration Cycle and Cool Air Circulation Route 7 2 Cool Air Circulation ...
Page 33: ...33 Circuit Descriptions ...
Page 37: ...37 Diagnostics 5 If the defrost sensor of the freezer has trouble ...
Page 40: ...40 Diagnostics 11 5 If the refrigerator fan doesn t work ...
Page 41: ...41 Diagnostics 11 6 If the compressor cooling fan motor doesn t work ...
Page 43: ...43 Diagnostics ...
Page 45: ...45 Diagnostics 2 If beep sounds continuously 3 When the digital panel PCB does not light ...
Page 46: ...46 Diagnostics 4 When a button of the digital panel is not selected ...
Page 48: ...48 12 Illustrated Parts Catalog 12 1 Freezer ...
Page 50: ...50 Illustrated Parts Catalog 12 2 Refrigerator ...
Page 52: ...52 Illustrated Parts Catalog 12 3 Disassemblyof Door ...
Page 54: ...54 Illustrated Parts Catalog 12 4 Cabinet ...
Page 61: ...61 11 PCB Circuit Diagram ...