ViewSonic Pf815 (branded as P225f) Horizontal Deflection Issues - Running out of Ideas

[rstrube]

Note: apologies I initially posted this request for help in the wrong forum! I am reposting it here and will take down the original posting.

Hi Everyone,

I've been working on repairing this beautiful CRT monitor off and on for the past several months and I'm really at a loss for what might be causing the problem.

Unlike other common Horizontal Deflection issues which result in a steady vertical line, when I turn the monitor on, there is a pulsing (somewhat segmented) vertical line. I've attached a photo that shows the issue (difficult to capture without video)....

[Crystaleyes]

Hi everyone.

Hoping that someone here has some experience with the AVR E-Series

Came across this pristine but poorly unit in a 2nd hand HiFi shop the other day and thought I might learn something in nursing it back to life.

It had a sticker on it stating, "working but only in one (left or right) channel".
Speaking with the shop owner, he said that in fact it would occasionally work in both channels but he doesn't do repairs so it was selling 'as is'.

Anyway, when he went to show me all this, it refused to even start up. When plugged...

[mferna14]

Dear gentlemen., today working on a Samsung Galaxy NP750XDA Laptop (NB3586-NB3587_PCBN_MB_V5), not charging battery. The laptop came with a dead battery & upon testing the battery Ouput coil getting around 6v, assuming that the battery circuit is ok & only the battery has to be replaced. I ordered a new battery, received & installed it but still same, NOT CHARGING. In the start, on the battery + pin I get 17v which is perfect for a 15.4V battery & then the volts drops down to 6v approx & does not charge or work on the battery & the charge LED comes on & then off. I...

[rstrube]

Hi Everyone,

I've been working on repairing this beautiful CRT monitor off and on for the past several months and I'm really at a loss for what might be causing the problem.

Unlike other common Horizontal Deflection issues which result in a steady vertical line, when I turn the monitor on, there is a pulsing (somewhat segmented) vertical line. I've attached a photo that shows the issue (difficult to capture without video). The monitor itself is branded as a P225f, but it turns out that it's actually a Pf815 that has an Add-On smallish PCB that expands it to support...

[santoslao]

I received an Alienware m16 R2 computer with the cursed "Legacy manageability interface" enabled.

I tried to downgrade the version to the oldest possible one, as I mentioned in another topic > Inspiron 15 3530 bios

However, the machine wouldn't turn on! So I reverted to the original version 1.15.0, which I had already backed up.

I decided to try reverting the versions manually, using the .rcv file from the Dell website, and I only managed to do it with version 1.14.0.

The next day I thought about flashing a clean ME version of version...

[castano marcel]

Hello everyone,
I am looking for the exact BIOS file for the Machinist ZX-H61C/B75 V7.32 motherboard revision.
I need it to flash my board using an Intel Core i3-2100 before upgrading to an Ivy Bridge CPU.
Please share a download link (Google Drive, Baidu, etc.) if you have the correct BIOS for V7.32.
Important: I only need the BIOS for revision V7.32, not V7.0 or V4.0.
Thank you very much for your help!
z

[Romy Globeone]

Please, I need this files for my Coby nbpc1537

[m.sabry2110]

need to repair this file
lenovo thinkpad p1 gen 3
s\n: R9-12VHNX
T\n : 20TJ-S3AP06
NO DISPLAY...

[totof]

Hello.
The power supply board for my Dell U3419W monitor is faulty. The Mosfet Q621 (60R160P6) has burned out (shortcut), but the problem is that other components have also burned out, and I don't know their part numbers. I haven't been able to find a schematic or photos of the board to identify them (the part number is 4H.47A02.A00).
The faulty components are resistors R631, R641, R627, R632 and chip IC621.






Thank you in advance....