Sharp R-22JT Service Guide - Page 71
Troubleshooting Key Unit
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Troubleshooting Key Unit Key unit CNB CN4 Disconnect all wire harnesses except the AC input connector CN-4 and the door sensing switch connector CN-B. Disconnect the Key unit connector CN-G
Troubleshooting Key Unit
Disconnect all wire harnesses
except the AC input connector
CN-4 and the door sensing
switch connector CN-B.
Disconnect the Key unit
connector CN-G
Key unit
CNB
CN4