Dangerousk
Member
Last Activity: 10-29-2024, 08:40 PM
Joined: 02-13-2023
Location: Cambridge
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i understand - seems a waste not to be able to fix older models that still work fine with equivalent parts to avoid going into landfill. is it possible to bypass protection to get some more use?... -
have checked fuses and volts and appears to all be there. think is protection. for few seconds tv picture is bright and clear -no dim areas or issues where the display is not as expected.
can someone share schematics for this model? - thanks...Leave a comment:
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thanks Lotas - yes found it and 1.78v at several caps around that IC405. when the error detected the voltages shutdown and four red flashes.
tuner not connected...Leave a comment:
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removed the tuner and same issues. Checked the service diag and shows events recorded July 2023, unless the date/time is messed up. Dont think it is.
Struggling to locate C464 on BKMS board to test 1.8v to the tuner.
thanks...Leave a comment:
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thanks Diah and Lotas - will go through the steps and report back
really appreciate the info
...
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I plan to - gets light use as not expecting it to cope with 'marketed rating'
cheersLeave a comment:
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thanks Diah
Agreed on the BL check - I don't do TV so wanted to get schematics/info before poking about too much. Chances are a bad cap or joint as the telly works until something overheats or shuts down...Leave a comment:
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Sony Android TV KD-49XE9005 4 red flashes
Hi there
Have Sony KD-49XE9005 that has been working fine for some time now. switched on this AM and after a few seconds screen blank and red LED flashing 4 times. Tried resets and all responding as expected expected and after booting up, after few seconds of displaying normal broadcast picture, screen goes blank red led flashes 4 times in sequence.
Anyone have schematics/service manual for this series. have checked the obvious items and caps test OK, voltages etc appear correct onwards.
thanks
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all working great after replacing the blown items listed.
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Hi
Photos as requested:
Front panel
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3271751}[/ATTACH]
from the right hand side
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3271752}[/ATTACH]
the main SMPS board is loose as the heatsink is removed with 3 faulty components...i removed to test a 470uf 50v...Leave a comment:
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Hi sam_sam_sam
will get some pics of the device and board and share. Will take a few hours
Cheers
DLeave a comment:
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Hanmatek HM310T bench PSU - schematics wanted
hey there
I picked up a faulty bench PSU that was being discarded as was faulty. So the internal SMPS has some faults, bad thermistor, Schottky rectifier and Mosfets all blown and I have replacement parts on way. fingers crossed 😀
I am looking for a set of diagrams for the power supply. has EST v1.15 along with 2022 date. Not sure if the EST refers to Edwards or some other manufacturer.
thanks in advance.
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Re: New Members - please post your introductions here
Hi everyone
Another new user. :-)
been tinkering/hacking/repairing stuff for years and only now taking the plunge on forum.
Looks like a great place with like minded folks.
Regards
KLeave a comment:
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