I need the circuit diagram for APC SURTD5000XLI UPS

SOURCE: APC Smart-UPS RT 1000VA

Hello Dear Specialists I have a problem with the APC Smart-UPS smart 1000VA: when I insert the
power plug in the wall outlet in one ups , indicate the AVR Boost ups regulating low AC voltage, when I measuring the AC city power voltage that is 207v .whey this ups is not working about the AC low voltage? ,but it should be work from (170v ~ 230v) AC input volte.please solve this problem, which element of AVR from the ups is failed or wrong and give me free circuit diagram low & high AVR and charger and inverter circuits. thanks allot

SOURCE: apc smart ups su1000, su750i and sua700inet circuit diagram

you mean you need a circuit diagram for the following APC unit? i dont think so if you can get unless theres one MF from APC manufacturing or service center that can give it or sell it to you. beacuse as far as i am concerned it is punishable by law to sell or to give copy of all circuit diagram of APC products. Good luck

SOURCE: basic UPS system circuit diagram

i want to design 3-phase UPS system for my project. so, i need the basic UPS circuit diagram before doing this project....can anyone help me..where can i get the circuit i want 60kva to 200kva ups circuit diagram with block diagram

SOURCE: APC Back-UPS ES 500: green light flashes&continuous warning tone

On this unit, the likely culprit is the battery and that it needs to be replaced.

With that, you may want to think about the pros and cons of replacement versus buying an entirely new unit.

This unit is a relatively low end ups and the surge supression uses MOVs that wear out with repeated absorption of energetic spikes. That's why the better (and higher cost) UPSs and surge suppressors don't use them. They're not really that good anyway due to their relatively high transient impedance. The better equipment uses a "transorb" -- basically a back-to-back high voltage zener diode optimized for low breakover impedance and high instantaneous power capability. Unless the transient exceeds the design parameters of the circuit, these do not wear out and do not degrade. That being said, I will assume that you would likely replace this unit with a similar one.
The flashing may not be the battery at all and may be the charging circuitry, thus your new battery may not live very long (half the life that you would expect.

Many batteries out there are refurbs and have issues as all used parts do.

If you contact APC, they will likely give you a 35% discount on purchasing a new product.

The difference in price in the battery replacement vs. ups replacement at this level may only be a few dollars more.

I promise that I am not a UPS salesman, I just deal with many on a daily basis; therefore I am giving my two cents to try to thelp you avoid problems a year from now.

Testimonial: "Outstanding answer with right amount of detail. I swapped battery with identical APC UPS that I have and vfd that battery was cause of warning tone."

SOURCE: APC Back UPS RS-1000 Overload LED with beeping sound after on.

in the end solution is you have to bring it nearest apc service.
if you loaded more than its max. capacity at past, the sensor of power is geting burn the sequare wave generator IC.
so you need help with that, olso complicated.
I live the same position with my rs1000, horrible :((