My Insignia 180uf 420v cap on the psu is shorted and I can't find a replacement in town. I found a can version but its 220uf 450v. Is there enough tolerance to use that cap or should I just order the exact match from Digikey?
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Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
TV Model: Hitachi 40HYC42
Power Supply: 17IPS71
MainBoard: 17MB95M
Panel: VES400UNDS-2D-NO3
When the set came in it was dead. Fuse was open primary side and the power mosfet was shorted. So I ordered a new power supply. Now it turns on, only displays "Hitachi" and then power off red and blue led flashing.
I had to modify the 0ohm resistors in the led backlight of the new PS like the original power supply.
Is there any variants on 17IPS71 power supply's?
UART output pins 10 and 12 on scart connector:
...Code:12:24:04.595
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I'd like to start out by thanking this forum for providing the info to be able to repair my 15 year old CP1500AVRLCD UPS. Here is all the info I gathered during my trouble-shooting and re-capping.
Like clockwork, I've had to replace the SLA batteries every 4 years. It was about that time and the UPS was acting like it needed new batteries... randomly shutting off with AC present, not being able to charge fully, and poor runtime when AC was removed. So, I replaced the batteries but noticed that it was not charging properly.
I decided to verify that the batteries were... -
Good day everybody
I hope I'm posting in the right section - I am new to this awesome forum.
I have received an ACER Ferrari F-20" LCD Monitor to repair.
It produces interference lines on the image displayed and slowly rotates across the whole screen, with respect to the center of the screen. One rotation takes about 4 minutes and the cycle repeats over and over.
For some reason the On Screen Display Menu is not affected when switched on with the Menu button.
I opened the external 18V power supply and see no bulged capacitors... -
I'm trying to flash an HP Probook 450 G5 (2XY63EA) BIOS using Arduino.
It's the first time I try this procedure so maybe I'm missing something stupid.
I've been able to unsolder bios chip (Winbond W25Q128JV) and wire it up to Arduino.
I also dumped it succesfully (dump.bin).
Now I'm having a hard time trying to reflash it, because the bios file I downloaded from HP has the wrong size.
I downloaded bios from HP (https://ftp.hp.com/pub/softpaq/sp103...0/sp103710.exe).
When launched, the executable extracts a file (Q...
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