Tn31 tailcap circuit (need help)

Flashlight Modding and DIY Parts
1

Been a while but,

Dropped my tn31 roughly 10 meters (out of the plenum in a gym) and it slowly quit working over about 3 weeks after that.

The led still light up, just at something lower than moonlight mode.

Thought it was the LED so I reflowed an xml-2 t6 5000k on it, and same problem, turns out one of the small SOT 23 chips in the tailcap shattered (the one coming from the outer ring), I’m not an electronics guru and I’m absolutely stumped as to what chips to order to replace these, I’d like to replace both of them and just have my light for sure working again.
Anything with higher specs than the stock ones would be nice as I plan to current mod the light to take advantage of the xml-2.

Best I can tell it looks like a pch and and nch jfet.

2

can you post picture ?

3

My tailcap reads AGGV 14 on the SOT-23 chip.

Googling brought me here: Ayuda con componente - ForoLinternas - Foro sobre linternas y tecnología LED

4

looks like they are in the same boat as me, cannot find any information on the model.
The top of the bottom one on mine was shattered off so it’s good to know they are both the same model, although it seems that juice would be flowing through them in opposite directions.

5

Photos and description how the electrical patches are and then we can look further…

6

Checked my photo lib and can't find a pic of the tail circuitry. There is a pic here but it's low quality: https://budgetlightforum.com/t/-/8528.

You don't need to beef these chips up, just get equal replacements to get it working. Mine does 6.0A - 6.5A by bridging the resistors and no mods to the tail.

7

Simply order a new circuit at Supbeam or Thrunite! They are really helpful! Where is the problem?

8

the link that ryansoh3 posted http://forolinternas.com/viewtopic.php?f=10&t=7530 has a better picture of it than I could ever take. It’s the exact same circuit, but mine do for sure say “AGRV 1H”.

Also I did try contacting thrunite-store about getting a replacement board, I need a replacement lens too and would gladly pay for them if I could get any kind of response.