HP CM8060 Color MFP Kundendienst Handbuch Seite 1282

Test the voltage at the Power Distribution PCA (A1)
1. Disconnect J3 from the A1.
2. Disconnect J6 from the A1.
3. Test the voltage to J3 on A1: 32 Vdc at J3 pins 3 to 15, 4 to 16, 5 to 17, and 6 to 18.
4. Test the voltage to J6 on A1: 5 Vdc at J6 pins 6 to 3, 4 to 3, 19 to 3, and 20 to 3.
„Electronics component locator" auf Seite 2367
„Power Distribution PCA (A1) diagram" auf Seite 2312
1 Are the voltages correct?
1 No Yes
Replace the Power Distribution PCA (A1)
1. Replace A1.
1 2
„Power Distribution PCA (A1)" auf Seite 712
Replace the Power supply (PS1)
1. Replace PS1.
1 „Stromversorgungseinheit" auf Seite 707
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
Are the 5, 24, and 32 Vdc LEDs lit?
No Yes
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 assembly wiring diagram" auf Seite 2296
VORSICHT!
1 Is the voltage correct?
1 No Yes
Check the resistance at the Tray 2, 3, and 4 Ambient Temperature sensor (SN41)
1. Verify that J5 is connected on the Trays 2, 3, and 4 Controller PCA (A23).
2. Disconnect the connector from SN41.
3. Check the resistance at pins 2 to 4 on the wire harness.
„Trays 2, 3, and 4 component locator" auf Seite 2370
HINWEIS:
1 2
Is the resistance approximately 12000 ohms (70F/20C) and 9600 ohms (80F/26C)?
No
1 2
1216 Kapitel 8 Hardware fault trees
Use an ESD strap.
If SN41 is touched, the temperature reading changes quickly.
Yes
DEWW