HP CM8060 Color MFP Kundendienst Handbuch Seite 1280

A1.02C1:Tray 2, 3, and 4 Ambient Temperature sensor
(SN41)
Initial Steps
1. Check the electrical connections at the Tray 2, 3, and 4 Ambient Temperature sensor (SN41) and at J5 on the Trays 2, 3, and 4 Controller
PCA (A23). Verify that the sensor is free of obstructions.
HINWEIS: If the MFP runs slowly, there might be a problem with SN41.
Cover the Tray 2, 3, and 4 Ambient Temperature sensor (SN41)
1. Cover SN41 with your hand. The temperature reading should change quickly.
„Trays 2, 3, and 4 component locator" auf Seite 2370
TIPP: Click Subsystems, click Input Trays, and then click Trays 2, 3, 4.
Does the temperature reading change?
No Yes
Check the temperature reading
1. The temperature reading should match the MFP environmental conditions. For example, a typical room temperature is
approximately between 70 and 80 Fahrenheit (21 to 26 Celsius).
TIPP: Click Subsystems, click Input Trays, and then click Trays 2, 3, 4.
1
Does the temperature reading match environmental conditions?
No Yes
1
Check the following conditions
1. Verify that the Tray 2, 3, and 4 Ambient Temperature sensor (SN41) is clean and has no obstructions.
1 2
2. Check the electrical connections and wiring between SN41 and the Trays 2, 3, and 4 Controller PCA (A23).
Check the 5, 24, and 32 Vdc LEDs on the Trays 2, 3, and 4 Controller PCA (A23)
1. Verify that the LEDs are lit.
„Trays 2, 3, and 4 controller PCA diagram" auf Seite 2298
1
Are the 5, 24, and 32 Vdc LEDs lit?
No Yes
1
Test the voltage to the Tray 2, 3, and 4 Ambient Temperature sensor (SN41) on the Trays 2, 3, and 4 Controller
PCA (A23)
1. Disconnect J5 from A23.
2. Test the voltage to SN41 on A23: 5 Vdc at J5 pins 1 to 4 (GND).
„Trays 2, 3, and 4 controller PCA diagram" auf Seite 2298
VORSICHT!
1 2 Is the voltage correct?
1 2 No
1214 Kapitel 8 Hardware fault trees
Use an ESD strap.
Yes
DEWW