| Author |
Message |
    
Dwight
New member
Username: Dwight
Post Number: 1
Registered: 5-2012
| | Posted on Friday, May 18, 2012 - 12:52 am: | 
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I have a a-ps50m that the regulator fried two res. r7, r8, If anyone know where I can locate a schematic for this power supply it would be a great help. The oprigal problem a seris pass shorted e to c hence overvoltage. conected eqiupement serfied, but sadly power supply reg board did not far as well. Thanks Dwight |
Funtimebob
Intermediate Member
Username: Funtimebob
Post Number: 370
Registered: 5-2002
| | Posted on Friday, May 18, 2012 - 8:48 pm: |
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Is it made by Palstar?
Does it say EP-850 on it somewhere?
Mods.dk has the info for a Palstar PS50/EP-850
R7 paralleling c7 is 2k
the numbers are a little hard to read
is r8 1k connected to one side of vr5 (2k variable)?
Alles ist besser mit Soße!
No I'm not a Tech,I just know enough to be a nuisance.
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Dwight
New member
Username: Dwight
Post Number: 2
Registered: 5-2012
| | Posted on Saturday, May 19, 2012 - 12:39 am: |
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Thank you for the info, It doesn"t say ep/850 anywhere on the unit. I will double check the R8 location. I did not find C7, But both res are connected to a zener diode whitch I still need to try to identify. Thanks agian I am gretfull for the info. |
Funtimebob
Intermediate Member
Username: Funtimebob
Post Number: 371
Registered: 5-2002
| | Posted on Wednesday, May 23, 2012 - 4:01 am: |
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I don't know if it is the right power supply info.
you will need to compare the schematic to what you have on hand
The same supply design can have multiple brand names just like a cobra 142 has the same board as the President Washington or Radio Shack TRS-490 with minor variances
Alles ist besser mit Soße!
No I'm not a Tech,I just know enough to be a nuisance.
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Dwight
New member
Username: Dwight
Post Number: 3
Registered: 5-2012
| | Posted on Thursday, May 31, 2012 - 2:34 am: |
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How do I get to mods.dk as I do not use forms very much. And thanks again for the responce.
Sincerly Dwight |
