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SP4805 - Problems after Fixing Fan

The main fan broke down, which is apparantly common, and I had good luck hard-wiring it to an external DC power source - but, after putting the beast back together, I'm not getting any image. The bulb comes on, the fans work perfectly, and I've double checked my reassembly for loose wires. Everything, but no InFocus screen or image from video sources. Has anyone else had this problem? Any ideas would be helpful!

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Hi daveyboy84

Take out all the connections one by one and check the pins on the inside.

Posted on May 23, 2008


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Posted on Jan 02, 2017


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Canon ir3300 error code 000805-0002

canon ir2200 E000805-002
The clock signal is absent for 5 sec or more after the fan drive signal has
been generated. The detail codes of the fans in question are as follows:
0001 developing fan (FM1)
0002 fixing fan (FM2)
0003 curl reducing fan (FM4)
0004 curl reducing fan (FM5)
0005 electrical unit fan (FM3)
Main cause The fan wiring is faulty (short circuit, open circuit). The fan is faulty. The
DC controller PCB is faulty.
1. Foreign matter
Is there foreign matter that prevents the rotation of the fan?
YES: Remove the foreign matter.
2. Wiring, Connector
Are the wiring and connector of the fan normal?
Developing fan (FM1): DC controller PCB (J302B)
Fixing fan (FM2): DC controller PCB (J308B)
Curl reducing fan (FM4): DC controller PCB (J311B)
Curl reducing fan (FM5): DC controller PCB (J311B)
Electrical unit fan (FM3): main controller PCB (J1028)
NO: Correct the wiring and the connection.
3. Fan, DC controller PCB
Try replacing the fan. Is the problem corrected?
YES: End.
NO: Replace the DC controller PCB.

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Notebook 3521 is shutting down after some minutes for unknown reasons. Any suggestion about the problema?

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98 Honda CRV power/overheating

If you are loosing coolant and cant find any leaks check your oil level. If oil level is have blown a head gasket or cracked a head. Common when an engine over heats badly.

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MY PRINTER hp laserget 4250 dtn is displaying 57.4 error when I turned it on, what can I do? I am ofetn requested to suitch off and then to switch on but it fails to mark " Ready"

57.4 Main fan error

Hi I hope this will help

The text come from the hp manual

good luck Ian

Q2431-90912 Chapter 7 Troubleshooting 287



To continue turn off then on







A printer fan is not functioning.

X Description

3 EP cartridge fan, right side

(LJ 4300 only)

4 Main cooling fan, left side

Turn the printer off and then on.

57.3 Cartridge fan error (F2)

1. Reconnect the connector

between the fan and the

DC controller PCA

(location J78).

2. Replace the fan. See "Cooling

fan (right side;

HP LaserJet 4300 series

printer only)" on page 170.

3. Replace the

DC controller PCA. See

"DC controller PCA" on

page 181.

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1. Reconnect the connector

between the fan and the

power supply.

2. Verify that the ribbon cables

are fully seated in the

connectors on the

DC controller PCA.

3. Replace the fan. See "Main

cooling fan (left side)" on

page 168.

4. Replace the power supply.

See "Power supply" on

page 188.

5. Replace the

DC controller PCA. See

"DC controller PCA" on

page 181.



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duplexer is not functioning.

1. Turn the printer off and then

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3 Answers



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Try powering down the unit (disconnect power cord), and see if this can clear the error code.
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1 Answer

I have error code e000003-0000. How do I get it working again

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Caution: The following steps should only be carried out by qualified people...

To clear the error, execute the following in service mode:

Do not clear the error until the fault is repaired. If you clear the error, and there is still an electrical fault it may result in a fire!

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SP4805 Fan Issue

the fans in these models do not have a speed sensor wire to let the main board know to turn off the lamp to not risk overheating. so if the fan goes, the lamp remains on. however, if the lamp exploded, check the vents for dust. there is a temp sensor that will shut down the projector if it gets too hot. if the vents are clogged, blow the dust out of the projector with canned air. the dust keeps in the heat that the projector is trying to expell. easiest way to repair the fan w/o buying a part: splice the fan wires together. they can share voltage. if the 80mm fan does not work at all after that, replace the fan (pn: 526-0192-xx).

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