Sharp R-22JT Service Guide - Page 66
Troubleshooting Control Panel
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Troubleshooting Control Panel "Dead" Key unit CN-B CN-4 Disconnect all wire harnesses except the AC input connector CN-4 and the door sensing switch connector CN-B. (the door sensing switch will not effect a dead unit) Disconnect the Key unit connector CN-G
![](/manual_guide/products/sharp-r22jt-service-guide-0e17027/66.png)
Troubleshooting Control Panel
“Dead”
Disconnect all wire harnesses
except the AC input connector
CN-4 and the door sensing
switch connector CN-B. (the door
sensing switch will not effect a
dead unit)
Disconnect the Key unit
connector CN-G
Key unit
CN-B
CN-4