CyberPower 1350AVR - Repair

[EvenKeel]

Re: CyberPower 1350AVR - Repair

My CyberPower 1350AVR died after a bad storm, must have been on the way out. The batteries no longer held a charge. I ordered new batteries, but it would not charge them. I did not find any relevant examples for my unit so I decided to start with a capacitance test by de-soldering capacitors and testing with my multi-meter. I tested 4 before I found one with an obvious failure out of specification. Tested C2, C14, C1 and C3. I found the fault was C1 rated at 22 uF and 50 V. Its capacitance was 2.014 uF and falling over time. I replaced it and now the batteries charge and have stayed charged. I will update this post if it fails again.

Hi plasticrelic,

I have the exactly the same issue with my Cyberpower 1500AVR.
I believe both of our main boards' are nearly identical (other than wattage).

I replaced the C3 cap due to obvious damage, but I am afraid to remove
my C1 cap because on the back side of my board there appears to be a tiny
copper colored component soldered across the C1 cap's traces.

When you un-soldered your C1 did you see this micro-component ?
Any idea what this little thing is ? How on earth did you get such a tiny
component back on the board ?

Thanks in advance for any advice

[sam_sam_sam]

Re: CyberPower 1350AVR - Repair

If this unit has a few years of age
and has caps that are off brand

If it has any of these series then you should be alright

Panasonic series FR FC FM
KY KZE
PL PW



I would replace all of them except for the main large cap unless it looks like it has pop it top

[plasticrelic]

My CyberPower 1350AVR died after a bad storm, must have been on the way out. The batteries no longer held a charge. I ordered new batteries, but it would not charge them. I did not find any relevant examples for my unit so I decided to start with a capacitance test by de-soldering capacitors and testing with my multi-meter. I tested 4 before I found one with an obvious failure out of specification. Tested C2, C14, C1 and C3. I found the fault was C1 rated at 22 uF and 50 V. Its capacitance was 2.014 uF and falling over time. I replaced it and now the batteries charge and have stayed charged. I will update this post if it fails again.