lapsmith's latest activity

Sorry for the picture quality, but in person I can verify there is no solder bridge (also checked with DMM). I'm 95% certain that the...

That's what I would have thought, but is that possible the way they are connected? The bases of each are definitely connected together...

I spent the last two days (maybe 10 hours total) tracing the circuit. It answers a lot of questions I had but raises two others. Here...

The collector of Q42 goes to one of the winding terminals (primary?) of TX1. TX1 has two other separate windings. One goes to the Vee...

The only caps in the area are two 0.22uF 630V. Do you think the would be for boot strapping? Here are pics of both sides of the board...

I found two drivers (out of 12) that are shorted. They are shorted from Vcc to Vee. I have to do some more checking, but I'm hoping...

I am trying to repair a Growatt MIN11400TL-XH-US. I haven't been able to find a schematic for it, but I do have this generic block...

I'll vouch for that. I only got on 10kwh battery (LG) because it was half off from my local distributor. But it has been a nightmare...

Roger that. Thanks.

Interesting stuff. Isn't it nice that they shared such technical information with you. And it is mostly in English. I will be getting...

Okay, got it. I don't expect you to explain modbus to me:-) i would only try to learn it if it could get my system working the way I...

Yes, it seems to work fine with the smart meter and grid tied. The issue is the battery backup. Not to me. I thought they just came...

Thanks for posting. All along, I thought V2 and V3 were updated versions of the manual, NOT differences in the inverter. After all...

Okay got it. I was excited thinking that's what I had wrong, but alas, no joy. One thing that is different on my setting page is when...

Do you have any documentation that says this version (or Part number) must have a SYN, or will not work with a smart meter? I want to...

Yes

Correct. Here is a shot of the original unit. The specs look the same so is it a version 3 also?

If that's the case, then I am screwed and have been chasing a dead horse! I'm pretty sure it is version 3 since when I called LG tech...

I think this is the most telling information, the fact that you have constant voltage on the backup terminals. I still can't figure out...

Right now, there is not enough access for a clamp on ammeter, but I am doing the permanent wiring now so there will be when done. Good...