I owned Panamax M5400-PM.
Which has voltage regulator function with
input voltage and output voltage indicator.
The thing is when input voltage is 120v, the unit think it's 110v, so
the unite up-trans 10v. So, output voltage indicator shows 120v but actually it's 130v. I checked with several multimeters.
Basically, the unit always think 10v lower than actual voltage.
There is no adjustment knob or switch to calibrate.
I asked Panamax and they just told me not to use the unit and buy new one.
Do you guys have any idea how to fix it or adjust it?
I ve changed every capacitors, relays, voltage regulator ICs.
Another possible failure components?
or adding some components to adjust?
Which has voltage regulator function with
input voltage and output voltage indicator.
The thing is when input voltage is 120v, the unit think it's 110v, so
the unite up-trans 10v. So, output voltage indicator shows 120v but actually it's 130v. I checked with several multimeters.
Basically, the unit always think 10v lower than actual voltage.
There is no adjustment knob or switch to calibrate.
I asked Panamax and they just told me not to use the unit and buy new one.
Do you guys have any idea how to fix it or adjust it?
I ve changed every capacitors, relays, voltage regulator ICs.
Another possible failure components?
or adding some components to adjust?
Panamax have their own (patented ) AVM system which constantly monitors the incoming voltage and if overvoltage a flashing "lightning bolt " is displayed in red .
If no "lightning bolt" is displayed then their patented circuit is out of spec.
Cant find a schematic.
If no "lightning bolt" is displayed then their patented circuit is out of spec.
Cant find a schematic.
AS I explained.
The unit think 110v comes in and 120v goes out.
(when actual is 120v in and 130v out)
110v in and 120v out means within spec, so unit is acting normally.
I also didn't notice it. I though my living town is old, so too much low voltage is supplied.
One day, I just checked my wall socket with multimeter and I found out it's actually 120v.
The unit think 110v comes in and 120v goes out.
(when actual is 120v in and 130v out)
110v in and 120v out means within spec, so unit is acting normally.
I also didn't notice it. I though my living town is old, so too much low voltage is supplied.
One day, I just checked my wall socket with multimeter and I found out it's actually 120v.
You said-- "basically ,the unit always thinks 10v lower than the actual voltage " and yet you say its not out of spec?
The voltage regulator range at 120 volts is +/- 6 volts , so if its outputting 130 volts I would call that out of spec.
The voltage regulator range at 120 volts is +/- 6 volts , so if its outputting 130 volts I would call that out of spec.
jeez..
The unit think 110 volts in (actually 120 volts).
The unit designed to up-trans when the unit received low voltage.
So, the unit up-trans 10 volts to make 120 volts.
The unit indicator indicates 120 volts (In spec)
However, actual output voltage is 130 volts (out spec)
So, I mean the unit "think" it operates in spec.
Also, without multimeter, every one will see it's in spec because
the unit indicator indicates 110v in and 120v out.
I know it's out of spec now because I measured with multimeter, so
120v in and 130v out (out of spec.)
The unit think 110 volts in (actually 120 volts).
The unit designed to up-trans when the unit received low voltage.
So, the unit up-trans 10 volts to make 120 volts.
The unit indicator indicates 120 volts (In spec)
However, actual output voltage is 130 volts (out spec)
So, I mean the unit "think" it operates in spec.
Also, without multimeter, every one will see it's in spec because
the unit indicator indicates 110v in and 120v out.
I know it's out of spec now because I measured with multimeter, so
120v in and 130v out (out of spec.)