The tv is stuck in service mode, i have unpluged it for several times, tryed to power it separate from remote , tryed some reset method using menu button and 4725 typed twice in a row to enter or disable the service mode but it didn't work. The board has no damaged components, could it need a fresh firmware or the emmc could be dead?
JVC LT-40V750 stuck in service mode switching colors.
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Try holding in the power button on tv, hold it til the screen changes, shouldn't take more than a minute if it's going to work. -
Could try a firmware update, had an old sony with same symptom, update fixed it, some tvs you need to select things with remote to continue update, this old sony kdl did not, you just plug in usb drive and turn on tv, when it was done the front led changed to a solid color, took about 30 minutes. Important to make sure it's done, could brick tv if an update is interrupted before it's finished.Comment
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Stick firmware. Try at your own risk. If the remote control no longer works, use a programmable one. Cred ca stii procedura de instalare.
https://files.fm/u/47jm44yhnz
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Ok, I thought someone must have put a long screw thru it, it's a hole, when I clicked the picture to enlarge it, looked like a solder blob with a tip on it but just an optical illusion.Comment
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Channel: Schematics and Boardviews
10-31-2024, 03:58 AM -
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by sam_sam_samI have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy... -
by sam_sam_samI have been working on this concept for quite some time now with limited success but recently I found a switching power supply that is setup for the voltage that this soldering station needs to operate at however it also needs part of the secondary circuit from the original switching power because you need several voltage rails
I once tried to get a ZD-915 desoldering station to work on a 18 volt battery power supply but unfortunately things did not go well but I did find a work around but I might try this idea again but going at a little differently more about this another time... -
This specification for the Acer Aspire A517-52-33HD + Extended Service Plans Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the A517-52-33HD + Extended Service Plans boardview and A517-52-33HD + Extended Service Plans 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 note...09-07-2024, 02:20 AM
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This specification for the Acer Aspire A315-58-31Z9 + Extended Service Plans Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the A315-58-31Z9 + Extended Service Plans boardview and A315-58-31Z9 + Extended Service Plans 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 note...09-07-2024, 02:20 AM
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