Question about Yamaha Office Equipment & Supplies
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Posted on Jan 02, 2017
SOURCE: 2 new bulbs, still dim picture
It could be a dirty projection lense or the light engine is malfunctioning by a slipped lense in front of the color wheel or the light engine is dirty it self. They are not two hard to take out if the mounts have set marks on them then it is easy to put the engine the way it was.
Posted on Mar 18, 2008
hello.+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.
Posted on Oct 21, 2009
SOURCE: Malibu lights system 8 yrs
This is a new problem.
Power packs deliver 12Volts across the wire to lights.
If the voltage is less than 12V, then lights will not go ON.
It's hard to imagine that 120Volt circuit is causing this problem.
You're not suppose to put power pack on extension cord, but you can do that for short term. For example run extension cord from indoor plug on completely different circuit breaker, and see if symptoms persist. You might need new GFCI that is connected to outdoor outlet.
Buy cheap circuit analyzer at home center and plug into power pack outlet at different times and see if there is a difference.
Buy cheap multimeter from home center. Install battery. Set dial to 120Vac. Put tester leads into receptacle slots when lights are working and when lights are dimming, and see if there is a voltage drop.
Plug a table lamp into same receptacle and see if there is voltage drop.
If you have photo-eye connected to power pack, remove photo-eye and see if that is causing problem.
The other possibility is a ground fault somewhere along the wire that is somehow draining away voltage, causing a voltage drop. For example if you have 20 each 20 watt bulbs for 400 total wattage, and power pack is rated for 300 watts, you would expect dimmer lights -or- non functioning lights.
Next step would be to replace bulbs one at a time.
Next step would be to dig up the wire, inspect wire for cuts, and reconnect each bulb. Check end of wire and see if it is under water. Digging up the wire is very difficult, and we usually just run another wire.
When working on lights, unplug power pack to remove chance that power pack will burn out.
Power pack transformer can burn out if the voltage is not used, and transformer gets overheated.
Please add a comment and say what you discover.
I would like to add your experience to following link on Power Packs.
Posted on Feb 28, 2011
did you use a genuine sony replacement bulb or aftermarket? Often the aftermarket lamps are not up to par with the OEM versions.
Posted on Nov 01, 2012
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