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Repair and disassembly guides for projectors.

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Projector won’t come on

My video projector will not come on

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Hi,

What is the make and model number of the projector?

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Sony VPL HW45 this problem occurs after we lost power due to lightning

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I apologize For the delayed response here, but I had The exact same scenario with the exact same projector. Were you able to fix the problem?

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@jeprox696

Was the projector operating at the time of the outage or was it in standby mode i.e. power connected but projector was not on?

Only ask because it appears as though the outage may have damaged the power supply in the projector. If it was in standby mode then hopefully the power board took the brunt of the surge. If it was operating at the time the damage could have extended further into the projector’s circuitry.

Not trying to alarm you just something that may have to be considered.

Question I also always ask is if the projector may be covered by your household contents insurance policy for this kind of event. Just something to think about.

The projector, will have to be opened and the boards, especially the power board, will need to be examined for burnt out or blown components. Obviously do this with the power totally disconnected from the projector.

Post some close up images of any damage (or even if you can’t see any damage) that you notice on the power board and any other board that looks suspect back here so that others can see if there is anything obviously amiss.

Here's how to do this.

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Also FYI if you experience a number of power outages where you are, it may be prudent to invest in good plug in surge protectors that you connect the device to and it plugs into the wall outlet to safeguard your devices from power surges created by outages. By “good” I mean one that indicates that it has operated in the event of a power surge and has protected the device that is connected to it. Cheaper protectors are also of the sacrificial type like the good ones but give no indication that they may have operated due to a surge and can still keep the power supplied to the device after the surge but offer no protection when another power surge occurs, unbeknownst to you.

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Thanks for your answer, that’s my guess I was hoping there is a fuse some where to protect it from the surge it was not ON when we lost the power

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@jeprox696 ,

Hopefully there may be a MOV (surge suppressor) that did its' job and sacrificed itself and protected the rest of the circuit so you only have to replace it.

Couldn't find a service manual for your model but did find one for an earlier model VPL HW15 and it shows a MOV and the slow blow fuse F101 T6.3A 250V on the power board (T=Timed meaning slow blow as opposed to fast acting) so hopefully your model will be similar.

If there is a fuse and it is blown, (you may have to use an Ohmmeter to prove it is or not) and the board designation for the fuse value shows T then get a slow blow fuse with the same Amps/Volts rating as shown on the board as a fast acting fuse (normal fuse)with the same rating will blow straight away when the power is connected due to the sudden inrush of current whereas the slow blow fuse holds until the inrush is over. We're talking milliseconds here

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I did not see a regular fuse alike does it look different?

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Does the fuse in the circuit board

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@jeprox696

Check on the board near to where the AC power connects to for a component with a board designation of "F" something e.g. F1 or F101 etc.

Fuses these days could look like this -example only and not have a glass tube etc or even mount vertically instead of horizontally.

That is why when you find it you may need to test it with a Ohmmeter to check if it is OK or not.

A good fuse will measure 0 (zero) Ohms i.e. short circuit and a blown fuse reading is no reading at all or OL etc i.e. open circuit.

If you can't find the fuse post some close images of the power board as described in my answer above

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jeprox696 さん、ありがとうございました!
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