After a power failure during a storm my DVR-320 is dead.I have the schematic but my knowledge of these power supplies is limited.Any assistance would be appreciated.The main fuse is good and power is getting to the transformer so the problem is after the main transformer.
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Re: Pioneer DVR-320-S is dead.
Well if it is dead and the transformer is getting power then next step is the processor. Which if it is dead, then I am sure all the internal components are as well. My recommendation is have a professional give you and estimate and buy a UPS unit that will regulate the power to you important expensive units such as this.
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Tries unplug,replug the unit back like about an hour later,see if might just in it protected mode,see if the unit reset itself and work again.Yes,there is a fuse in the back of the PCB board,it seat near the power a/c cord.U can tries to replaced the fuse and tries it out.But all modern electronic devices saldum burn fuses in a normal uses.
I have a solution to power it on again quickly. Unplug the power cable, short out the pins in the power socket in the back of the machine ( NOT THE POWER CABLE ) and plug the power cable back in - it should go into standby mode immediately. I think the problem is caused by a capacitor on the power supply board going faulty with age. I have not had time to open the machine to check yet, but I will do so soon.
Apparently there was a problem with some of the capacitors in these models. Your capacitor definitely is popped.
I had the same problem. The fuse was okay, but
two capacitors were blown. One was at location C23 and I think the
other at C17. I took it to a local electronics shop and they replaced
and soldered the new capacitors on for me. It only cost $16.22. They
were a 3300 µF and a 1000 µF.