My Pentair Prowler 730 is acting dead. Power supply does not light up. Where can I find a schematic to repair the power board?

SOURCE: how can i determine if my power supply is dead?

You can see the pinouts for the power supply here.

SOURCE: power supply bad on Sharp Aquos LC - bad board - schematic to ID?

Buy the green light going on means Standby is ok. Next, would be to locate the plug coming from the main board to the power supply and find the post that says PO which means power on. With your meter on that post, press the power button as see if the reading goes High, if it does then the main board is able to turn on the power supply. Next, find the plug on the power supply that goes to the inverter( the long board on the side) remove it and see if you have 24 volts coming out of the power supply when you press the power. If you do, then the inverter board is bad, if you don't have 24 v, then the power supply is bad. There are NO diagrams available for these set other than a flow chart if you can find one. A regular svc tech does'nt need a manual for these anyway.

Let me know how you do Kathy ?

jasbo

• 2239 Answers
• Posted on Sep 04, 2009

SOURCE: Infocus projector power supply dead

the caps dry out. look for bulging caps. you won't find a schematic for the ps boards. infocus had someone else make them. the problem seems more like a overheating issue. as for the other one with the "just the fans", check the colorwheel.

SOURCE: NO POWER FROM MOTHER BOARD DEAD NO POWER.POWER

It's not your processor.
Processor run only when motherboard is good. If your motherboard have no power then change it a new and this kind of motherboard are not repairable.

Testimonial: "thanxs for the reply..i will change the main board and processor."

SOURCE: Samson MDR8 blowing internal power supply fuses.

Here is a troubleshooting hint:

Put an incandescent lamp in series with the hot side of the power cord. This acts as a resetable fuse while troubleshooting so you don't blow fuses.

Schematics are hard to come by, but power supplies are easy to trace the circuitry.

Check filter caps and the diodes and THEN look for hot (temp) IC's and transistors.