usp440m-42lp psu

[joehezzer]

Re: usp440m-42lp psu

Nothing from any of them. So probably need to pull off diodes and check em !!

[joehezzer]

Re: usp440m-42lp psu

Nothing from any.

[paulstef]

Re: usp440m-42lp psu

check the measurements in the picture

the yellow part creates the 5V standby voltages

[joehezzer]

Re: usp440m-42lp psu

Ok not getting any voltage at all

[joehezzer]

Re: usp440m-42lp psu

Go right to the connector where it says 5VSB (CN801). Measuring DC you should have 5V.

Then connect a 1k resistor from 5VSB to RL_ON. The relay should come on and you should get 9V, 24V and 12V.

Then connect a 1k resistor from 5VSB to VS_ON. You should get about 190V VS and 60V VA. All DC.

Just gonna have me dinner

[paulstef]

Re: usp440m-42lp psu

Go right to the connector where it says 5VSB (CN801). Measuring DC you should have 5V.

Then connect a 1k resistor from 5VSB to RL_ON. The relay should come on and you should get 9V, 24V and 12V.

Then connect a 1k resistor from 5VSB to VS_ON. You should get about 190V VS and 60V VA. All DC.

[joehezzer]

Re: usp440m-42lp psu

37VAC is not enough, must be the same voltage as input AC voltage.

ok just double checked it got the same voltage as the input, 263v ac

[joehezzer]

Re: usp440m-42lp psu

[paulstef]

Re: usp440m-42lp psu

37VAC is not enough, must be the same voltage as input AC voltage.

[joehezzer]

Re: usp440m-42lp psu

37v AC from these

[joehezzer]

Re: usp440m-42lp psu

Perfect. What's the voltage at the points indicated in the picture?

37v AC

[joehezzer]

Re: usp440m-42lp psu

Right ok test out put again and got 263v Ac atleast I have a reading this time lol

[joehezzer]

Re: usp440m-42lp psu

ok so i have changed filter no joy, i must have tested something wrong somewhere or has blown old filter and something else. i have not had chance to test it properly yet. i did test the rocker switch and it tested ok but on closer inspection it looks a bit melted.
when i plug the power cord in i can hear what sounds like a relay click from the area pictured and shorting sound if i can use that term

[joehezzer]

Re: usp440m-42lp psu

Well if that's all there was you are very lucky.

fingers crossed there is no other damage. the chap said he had a sparky round his house the week b4 sorting his house electrics out, then a week later he had a power cut because of the weather and the set never turned back on, fingers crossed there is no other damage

[paulstef]

Re: usp440m-42lp psu

still waiting for filter

Well if that's all there was you are very lucky.

[joehezzer]

Re: usp440m-42lp psu

still waiting for filter

[paulstef]

Re: usp440m-42lp psu

Great. Good luck!

[joehezzer]

Re: usp440m-42lp psu

How did this work out for you? Was it the Filter?

ok so i just tested the filter there is no voltage at all at the filter, so have a new filter on order.

[joehezzer]

Re: usp440m-42lp psu

How did this work out for you? Was it the Filter?

hi paul not had chance to test it yet, hopefully tomorrow

[paulstef]

Re: usp440m-42lp psu

How did this work out for you? Was it the Filter?