10/002-180 Phaser 790/DocuColor 2006010-701Initial IssueStatus Indicator RAPs010-701 Faulty Temperature Sensor RAPThe Temperature Sensor has failed to read the Fuser Temperature correctly. A TemperatureSensor error has been declared.Initial ActionsInspect the Fuser area for debris and other signs of wear, breakage or excessive heat damage.ProcedurePull out Area 5. A resistance of approximately 200k ohms is measured between J71 pinB4 and J71 pin B6 when the Temperature Sensor is at room temperature.Y NDisconnect P/J 72. A resistance of approximately 200k ohms is measured betweenP72 pin 2 and pin 4 when the Temperature Sensor is at approximately room temper-ature.Y NReplace the Temperature Sensor (PL 8.2).Reconnect P/J 72. A resistance of approximately 200k ohms is measured betweenJ71-B4 and B6 when the Temperature Sensor is at approximately room tempera-ture.Y NGo to Flag 1. Check the wiring for an open circuit or a short circuit to ground. Repairor replace the Fuser Harness (PL 8.5) as required. If the problem persists, replacethe Temperature Sensor (PL 8.2). If the problem still persists, replace the MCU PWB(PL 11.2).Go to Flag 2. Check for an open circuit or a short circuit to ground. Repair or replace theMain Harness (PL 11.1) as required. If the wiring is OK, replace the MCU PWB (PL 11.2).The problem may be intermittent. Go to Figure 1. Check for loose or damaged connections ordamaged wires. Repair or replace the Fuser Harness (PL 8.5) or the Main Harness (PL 11.1)as required. If the wiring is OK and the problem persists, replace the Temperature Sensor (PL8.2). If the problem still persists, replace the MCU PWB (PL 11.2).
