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Testing power supply +15v is not near +15v enough?
Posted: Jul 3rd, '16, 16:53
by rkzr
Anyone also experienced this? +5v is perfect but +15v = 13.62v isn't that too far off??
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 3rd, '16, 20:36
by antto
where are you measuring this?
after the 15V regulator?
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 3rd, '16, 20:54
by rkzr
I have measured this when i placed all components on the power board. I also tested the voltage on the main board when the powerboard was attached and with the NOISE IC, there i had a reading of around 13+V
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 4th, '16, 10:33
by Data Jam
what do you get on the -15v ? do you have a AC/AC wallwart or AC/DC ?
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 5th, '16, 13:25
by rkzr
On -15v i get no reading and i do have an AC adapter (90 VAC to 264 VAC, 135 VDC to 370 VDC)
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 5th, '16, 14:19
by Data Jam
i have the same problem, i built the power supply, 13.7 von +15, 5 on +5 and 0 on -15
searching the forums i found someone that had the same problem, same numbers and a wrong wall wart... important is not the input, but the output, it has to be 15V AC
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 5th, '16, 14:25
by rkzr
@ Data Jam, did you fix it already? New powersupply then?!
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 5th, '16, 14:37
by rkzr
checked my wallmart; output is 15V 1.0A, 15W Max. AND is a switching power supply would that be problem too?
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 5th, '16, 14:47
by Data Jam
i did buy i new one, but didn't get it yet..
viewtopic.php?f=16&t=373
viewtopic.php?f=16&t=703
what is your output? 15V AC or 15V DC ?
AC is sometimes shown as:
~
DC like this:
__
---
Re: Testing power supply +15v is not near +15v enough?
Posted: Jul 5th, '16, 15:01
by rkzr
too bad. checked mine and it is actually DC! Now i also know what AC and DC looks like in a pictogram

What do you still need to find out for fixing your problem? New resistors?