32MF231D/37 pulsing 24V under load, backlight flashing
does anyone have a service manual for this guy? 32MF231D/37 found a parts list from elektrotanya but need to see the schematic for the power supply. no load its fine right at 24V. under load of the inverters its pulsing all over and flashing the screen then shuts off. can hear a buzzing from the transformer on the power supply. replaced the power supply already but it was an ebay item. doing the same thing
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Re: 32MF231D/37 pulsing 24V under load, backlight flashing
https://www.badcaps.net/forum/showthread.php?t=39740
Inverter , power supply board P/N? BN44-XXXXXX?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: 32MF231D/37 pulsing 24V under load, backlight flashing
Pn# 313815866811Attached FilesComment
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Re: 32MF231D/37 pulsing 24V under load, backlight flashing
inveter pn # 996510005766Attached FilesComment
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Re: 32MF231D/37 pulsing 24V under load, backlight flashing
There are four SMD MOSFETs (8-pin) on each inverter board. Can you read the P/N to get the pinout to check the Source and Drain pins for shorts?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=24809Comment
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Re: 32MF231D/37 pulsing 24V under load, backlight flashing
i repaired my own tv...(a magnavox).. that had that buzzing sound. i thought it was the transformer for the longest time till i tried a can of air. turn it upside down and spray the part you think it is. i found out it was a zener diode that was the problem. replaced it and the tv turned right on and worked. it was right under my transformerComment
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Re: 32MF231D/37 pulsing 24V under load, backlight flashing
try spraying these and see if the buzzing changes. sound of the buzz should get higher then go back down as it warms back upAttached FilesComment
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Re: 32MF231D/37 pulsing 24V under load, backlight flashing
450V capacitor can go bad causing this issue, if all else tests good.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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I was asked to look at a Sony KD-55X8509C as it was not powering on, no lights.
On inspection, there was no physical issues.
I seated all cables and repowered the TV, then the LED light flashed Green / Amber.
- this seems to indicate repairing required, done by Firmware update.
so downloaded the latest Firmware from Sony website and wrote to 4Gb USB drive.
Inserted the drive and repowered the TV.
LED changed to white flashing/pulsing ... and it sat there for over an hour.
i was unsure what was happening so repowered the TV and now it just... -
Hello everyone!
I have this board that got slightly water damanged and it is stuck at S5 state. It pulses once every 5 seconds.
When connected the magsafe 2 to the bench psu, the current goes from 0.02A to 0.10A when is pulsing.
When using the genuine magsafe 2 charger, the light turn on and it became green and then amber. The fan is not spinning.
When I tried the SMC bypass mode, the fan spins a quarter every 5 seconds and the pulsing is still present every time the fan spin.
The pulses are present in the CPU Vcore rails on L7320 and L7310.... -
As the Elitebooks (820, 840 all gens) only show flashing Power LED and flashing CapsLock (continuously) + a very soft "ticking" noise near the DC Jack,
I wonder if re-flashing the BIOS might be of any use here.
As far as I understood, steady flashing either means insufficient power or a CPU/GPU/Motherboard issue. I use the original 65watt power supply.
There are so many threads out there, but most of the solutions involve flashing codes, which I dont have or claim that you MUST use the original power supply, do a hard reset, reseat the RAM, clean the RAM,... -
Hi Folks,
Just wanted to clear up a misunderstanding of mine (or what I expect is one). Isn't the 12V rail from the 24 pin, EPS and PCIE separated? IE if I put a power resistor on the ATX 12V pin that is not going to load, thus tell me if the EPS or PCIE rails are fine?
I was recently watching ArIs from Hardware Busters video on how to properly test ATX PSUs without using 5 figure Croma substations.
The PCB adapter he used breaks out the 12, 5 and 3.3V pins from the 24 pin and gives you banana plugs to connect to. That is a bit useless is it not? Aren't... -
This specification for the HP Elite Slice G2 + Image Load & Asset Tag can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Elite Slice G2 + Image Load & Asset Tag boardview and Elite Slice G2 + Image Load & Asset Tag schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...09-12-2024, 02:20 PM
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