Search results

Well shoot. Just spent hours replacing the vram and same problem. But worse. May be incompatible ram in some way or I have a bad solder connection but it looks good to me. Regardless it’s apparently not the vram. If anyone has any ideas please let me know. I don’t think there are any...

😂 I know haha but the correct battery might just snap in after I pull the tabs off

Ooops! I mistakenly put a 2032 standard non rechargeable in my PB180! Just opened it up and removed it and ordered a VL2020 rechargeable. I hope I didn’t damage anything! 🤷‍♂️ hard to test because you have to put it back together.

Ohhh wow ok. So I wonder if you can put a bluescsi in one then. The drive was silver so I think it was a quantom and not a Conner.

Oh I think I’ve seen that it’s a dock connector that has two ports and one is the square scsi connector. Is that what you mean? Actually now you got me thinking you could probably make a mold of it and re-cast it in a a soft silicone.

Uhg I just put it all back together and forgot to look or take photos. Now to make this thing complete I need a batter back with the sliding cover and the back left tilting tab that covers the modem is broken. And the keyboard is stiff as hell. Someone needs to make a new repro rubber...

It lives! I opened it up and removed the ram and all the connectors and then reseated it all and powered on and had a screen and no hard drive then I tapped it and it fired back up! Lol 😂 easiest fix ever. On the packs.when I had the machine apart I measured With “-“ lead on far right...

OK, Yeah I have made a few packs now.. I have a spot welder. Ive recapped and repaired several boards, just not familiar with the duos... Going to try that flashlight trick now.

Oh ok I thought there were tantalum caps on it. I haven't opened it up yet. The batteries look fine. No corrosion. I will know more once I open it up. I guess there's no way to rule out the display as the problem by connecting an external display without a dock. Yeah this pack rebuild looks like...

Hey all, I just acquired a PB Duo 2300c in trade to build some battery packs for that model but all it does at power up is make a startup chime. There's no hard drive sounds and the display never lights up. Does anyone know if this is common and if there are some troubleshooting and repair...

Also wondering if I could lift a bank of ram and see if the issue changes or improves to maybe confirm that it is indeed a vram issue. And if so how can I tell which two are a bank?

You think these would work on the kanga board? https://www.mouser.com/ProductDetail/ISSI/IS41LV16256C-35TLI?qs=NHTRUjBBRiPscTKwmG8dJA%3D%3D

Ahh totally different RAM though...

I saw that as well and also confused. I wish I could just find the chips.

ok so the 3400c board has Two of the 4 I need then? tempting to buy one on FLEEE BAY then...

That’s what I suspected but the size doesn’t seem to pan out. 256k x 4 = 1MB ? And these are impossible to find.

Not at all I could clean the board and take some better photos tomorrow in daylight.

Do you know where the video memory is on the board?

Not that I can tell. The battery looks ok there was a little bit of white corrosion on it but not much and the board looks ok.

These are the ones closest to the video output: But the datasheet says they are 256k x 16. Wouldn’t that be 1MB? https://www.alldatasheet.com/view_datasheet.jsp?sSearchword=V53C16258&sPage=2&sField=2 I am guessing that this is bad VRAM: