spleenharvester
Badcaps Veteran
Last Activity: Yesterday, 11:31 AM
Joined: 03-21-2010
Location: Nottingham
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Next to nothing, you can get 2500 30x30mm square labels for about £10. Though they do also need thermal transfer ribbons, which will run you about £15 per roll for that length.... -
If you do this often a good investment is a Zebra ZD series thermal printer that can do thermal transfer labels (rather than direct thermal), something like a used ZD620TT. Those labels will basically last forever and won't fade due to heat etc. I use mine all the time and love it....Leave a comment:
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Toshiba 50UL2063DB single column of dead pixels on screen
Hi friends
I have a Toshiba 50UL2063DB with a single line of dead pixels on the screen. If you rub back and forth at the bottom of the screen with gentle pressure the line comes and goes.
Am I right in thinking this is a panel fault and therefore not repairable?
Thanks... -
I did the NOR charge/discharge test on the dead cells, one came down from ~80mR to ~30mR and is now accepted by the charger, another came down to ~55mR and a third stayed the same. Don't know enough about battery chemistry to know why this is happening, I am going to run the other two again and see if I can get them down to normal rangeLeave a comment:
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I had a good look at the PCB, can't see any obvious faults, and I can't find anything common to the two sets of four channels other than what I presume is the microcontroller (all chips have no etching so I assume they are counterfeited). So I have to imagine it's a firmware problem.
Anyway I received my Lii-500 Engineer today and it confirmed the fault is on IR, all of the faulty cells measure approx 80mR and all of the good cells measure approx 30mR. Which begs the question of why they are failing - they are from different batches...
EDIT: Spent hours dealing with Panasonic...Last edited by spleenharvester; 01-27-2026, 09:23 AM.Leave a comment:
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Ali gave me a decent partial refund for the Lii-S8 so I'm going to keep it and try and fix it as only the IR function is broken. Any ideas where to start probing? I think it's probably a firmware bug but worth a shot lolLeave a comment:
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Budget 3.5mm to 3.5mm stereo 2.0 amplifier options
I have a PS5 that is outputting into a Dell AC511 via a KT0210-based USB to 3.5mm DAC. It's a bit too quiet. Although the AC511 is only 2.5W, I don't believe it is the primary issue, because if I have the PS5 output into my portable monitor and then run AUX into the AC511 it is plenty loud (unfortunately it has a rubbish DAC so is very tinny this way). I measure the KT0210 converter as having a Vrms of about 0.68V.
I feel like my best bet on a budget is to put a 3.5mm amplifier between the PS5 and the AC511. But there are so many chips I'm not sure what to go with, MAX4410 CS46L41...Last edited by spleenharvester; 01-25-2026, 11:44 AM. -
That's good to hear. I imagine the backlight timer is so that it doesn't illuminate the whole room when someone is trying to sleep lol. The Lii-S8 did the same thing though and I found it really irritating.Leave a comment:
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Nah it's Liitokala's brand direct store on Ali. Looks legit to me. I wonder if it is a customer return, either that or they store their hardware really badly
I bought an Lii-500 Engineer anyway as pretty much all of these chargers seem to be made of Chinesium so hopefully it will be better. Don't have the money for a SkyRC MC3000 so will just have to play the lottery...Leave a comment:
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Yeah some of these are new and my salvages are generally showing about 40mOhm on my other chargers, there's definitely something not right with this one. Going to buy a different model in case this is a design fault of some kind
Had a quick look inside, nothing obvious sticks out but the board is in poor condition with signs of corrosion and abrasions and bad soldering. Will be buying a different brand next time I think....Last edited by spleenharvester; 01-22-2026, 08:45 AM.Leave a comment:
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Received my Liitokala Lii-S8 today, but every single cell I insert reads as exactly 128mOhm - does anyone know if this is the maximum it can read? This limitation isn't stated anywhere if so...
It does however correctly detect the cell chemistry on all cells, so still no answers as to why the BQ-CC63 is rejecting those cells
EDIT: It also reads 128mOhm on some 18650 cells that have been verified to be about 30mOhm on another charger so I am inclined to think the charger is faultyLast edited by spleenharvester; 01-22-2026, 07:34 AM.Leave a comment:
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Finished recapping the BQ-CC63, no change in behaviour.Leave a comment:
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Hi all
Reuploaded these and added the third chip now. There are three files:
WD19_W25Q20CLN1G_OUTER.bin (CRC32 = 92C7DC5C): This one is at the far end of the board closest to the expansion port
WD19_W25Q20CLN1G_MIDDLE.bin (CRC32 = 208D6A25): This one is in the middle of the two chips, next to the USB port
WD19_W25Q40CLS1G_OUTER.bin (CRC32 = BCA507ED): This one is at the other far end of the board closest to the power button
Please note this is a new read from the same board in the OP, and I have no way of testing them as the board is now a parts...Last edited by spleenharvester; 01-18-2026, 03:23 PM.Leave a comment:
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Ah that Pomona one is the one I'd been meaning to buy ages back, thank you!
I usually rip images off boards before I discard them and upload here, in those cases it's easy enough to just desolder the chip. But I prefer not to do that for things I intend to repair as I don't want to create the risk of lifted pads etc...Leave a comment:
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Reposting a fresh read due to forum's attachments issues. CRC32 still = 0x61F14F19...Leave a comment:
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CH341A SOP8 in-circuit test clips, any good ones?
I have a CH341A with this test clip: https://www.amazon.co.uk/DollaTek-EE.../dp/B07DJZYCJF
It's absolutely abysmal, you have to hold the clip to the board really tightly to get it to read, and then stay there the entire time. It takes a dozen or so attempts at the best of times.
Unfortunately that seems to be the only in-circuit test clip commonly used. Does anyone know of a better one? -
Reuploading schematics and pictures, no changes made to them.
I ended up scrapping this welder, although it worked after repair it was a lot weaker than it was and I could never figure out why....Leave a comment:
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Another update, still working and in heavy use a year later. :-)Leave a comment:
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Reuploading an image lost from the attachments on this thread. The fracture on the PCB was underneath the red wire. I ended up replacing the replacement and treating myself to a Milwaukee brushed tool which has been fine....
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And now the images too.
These still work really well. I had a fan failure on one but it was easy to sort. I 3D printed cases for them off Thingiverse, stacked them with some rods and nuts, and designed a base that holds an MH-KC24-4 charging module connected to all six USB ports. So now I just plug 12VDC into the back and everything is automatically powered up and ready. It's a neat setup....Leave a comment:
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