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Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Infinity PS-10 pictures and diagram
I have an infinity TSS Sub1200 subwoofer with the same type of plate amp and sealed module and it also has the same symptoms. It seems you have experience replacing the 4.7UF and 6.8UF capacitors plus you mention you modified the module with free sample power amp IC from National/TI instead. Which route do you recommend. I was also considering retrofitting with a dayton SA250.
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Hi All,
I obtained a schematic diagram for the above mixer but I am wondering if a block diagram exists as I am trying to fix a problem in the protection circuit which I find a little confusing using a circuit diagram only. In the good old days the workshop manuals always had a block diagram with a circuit discription. Very useful for fault finding.
The protection light is perminently on. The right sode has a -80DC on the feed to the speaker, hence the protection led on. I have removed all the O/P transistors which checked out OK. I tested all other transistors in circuit which seem... -
First of all, I hope I got this into the right section. Apologies if I did not.
I was working on my Asus ROG Strix G17 (2021) G713QM-RS96, and I guess I pre-heated the board too much replacing the DC Jack and one of the small parts came off. I looked for it on my soldering mat, and it was nowhere to be found. So now, the laptop is powered from the new DC Jack I installed, but it will not charge the battery from that jack. Only powers the hardware.
I looked at the boardview diagram in another post for the G713QM, and it looks like the diagram displays it as X450, a 4 contact... -
Hello, colleagues!
I'm currently dealing with an issue while repairing a Concord Infinity elevator. The microcontroller P87C51SBPN used in the control board has failed, and I need the original firmware dump in .bin format to replace it with a new processor.
What I've done so far:
• Diagnosed the issue and confirmed the microcontroller is the root cause of the problem.
• The original processor is beyond repair, and I wasn't able to extract the dump.
• Reached out to the manufacturer (Savaria/Concord), but I haven't received a response yet.
...01-16-2025, 02:08 AM -
hello everyone, I'm looking for the wiring diagram of this led monitor.
the model is DHI-LM19-L200, but I think that any other diagram of a DAHUA monitor could be equivalent.
I really hope that among you someone can help me to repair this monitor, the screen is black, it doesn't seem like a backlight problem.
I see the presence of 12 volts, 5 volts, but without a diagram the repair is very difficult.
thanks to those who will answer12-10-2024, 04:37 PM -
Hey there people
While working on my Acer Aspire with the OS failing to load, I encountered a motherboard number of DA0ZHQMB6E 0 REV: E. I was getting nowhere fast or slow, for that matter.
This is what I tried, but not in any order.
Google
YouTube
BIOS
Command Prompt (administrator privileges)
>
On Google AND YouTube, I was getting mixed messages, try this and try that, but when you cross reference the advice it is either the wrong model (even though you enter the correct search term) a YouTube case in point, with the search term "how to...10-25-2025, 02:22 AM
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