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I have a PB 1400 that I keep without a battery to avoid leaks. However, the PRAM battery is present and had been replaced. Sometimes I turn it on with the power supply, so the internal battery also recharges. Recently I noticed when I unplug it from the power supply, after a while, the steady...

I tried with hot air but it didn't work, so I preferred not to risk it any further. The result satisfied me anyway 😉

Hello, I found this gorgeous TFT for a 5300 but it shows 3 columns of pixels that don't work. what could it depend on? The flat cable seems ok... 🤔

@3lectr1cPPC one last question, do you think this problem of having the extra layer also exists with passive matrix B&W panels or does it only apply to LCD colours?

Now it's clear to me, obviously when removing the old film I eliminated everything including the extra layer and this explains why they now they look the same. Ok at this point all that remains is to get FSTN film and try. I appreciated your help, thank you very much!

@3lectr1cPPC @Byrd thanks for the suggestions, I didn't know anything about FSTN films. Before to waste more money, I did an interesting test: in the photo you see a PB190 LCD where I removed the original front and back films. Then I inserted a test area at the top right with with a piece of...

Yes, I've done several rotation trials before and I'm afraid this is the best result :rolleyes:

Yes, I've done several rotation trials before and I'm afraid this is the best result :rolleyes:

Hi everyone, I'm trying to restoring a vinegar syndrome victim: a PB 190cs LCD display. After various readings and videos i decided to replace the polarizing films on the LCD of a PB190cs. So I tried with 2 films from Aliexpress with angles of 135° for the back and 45° for the front. I read...

Does anyone know if the flat display cable of the 190cs (see pic) and the one of Powerbook 190 (grayscale) are interchangeable? Thanks!

Hello Byrd... well, not so easy to find it in Italy... quite easy from US but quite costly because shipping and importing taxes... 🙄

Thanks for your advice, yes I've seen a couple of videos about replacing the film, is not easy and even the film is not cheap anyway I'll check this possibility.... Don't know about the label, perhaps it has to do with the Italian market?

Hello, any advice about fixing this shadow on the LCD panel? Is this the "vinegar syndrome" or something else? Thanks

Hi, I've got a "packaged new from factory" board replacement for Powerbook 190. Already tested and it works. Question: should I recap its electrolytics capacitors before to finally mount it in the PB190?

Hello, does anyone know what this component (the black box in the pic, labelled 157S0166) is? It is from a Powerbook 190 logic board. Many thanks.

Does anyone have a checkpoints map for the PB190 logic board? I need some checkpoints near the on-board power module in order to check the expected voltage on the motherboard for a suspected problem on the onboard power module. Thanks

Left on for a couple of hours..... I can try longer...

I think so, it is probably power/PRAM related. I tried to leave it for a while but no changes :(

I think so, it is probably power/PRAM related. I tried to leave it for a while but no changes :(

Yes It was recapped 2-3 yr ago. Moreover I've done a test replacing it with a lab power supply and got same behaviour.