Re: SHARP LC-46A77M No power ON
Dear dick_barton
Thank you so much, will try to do that.
RMCUNIVERSAL
Member
Last Activity: 09-11-2018, 08:54 PM
Joined: 02-22-2017
Location: Miri
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Re: SHARP LC-46A77M No power ON
Dear dskall
Dear dick_barton
Thank you guys for your help.
I do change the IC TNY264 and the resistor R7914 and every thing is ok now
Thank you every one and many thanks to budm as well who was try to help me in other reply.
the attachments for the tv with the board and i hope it will helps others.
Sorry for poor soldering
Thanks...Leave a comment:
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Re: IC Number on DPS-286 AP/RDENCA336WJQZ Sharp power board
Dear budm and every one try to help.
As promised,
I do changed the IC TNY264 and R7914 and every thing worked perfect.
Thanks every one...Leave a comment:
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Re: IC Number on DPS-286 AP/RDENCA336WJQZ Sharp power board
Dear budm,
Thank you so much for your reply and explanation,
I follow your instructions and I find IC TNY264 is damaged.
Will replace it with new one + R7914 and will update the results.
I check the D & R at standby power supply and all are ok.
Thank you budm.Leave a comment:
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Re: SHARP LC-46A77M No power ON
Thank you dskall for reply, will try to change the kit recommended and will upload pictures with results
Hope it will works.Leave a comment:
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Re: SHARP LC-46A77M No power ON
Hi guys,
Any ideas for my problem?
Thank youLeave a comment:
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Re: SHARP LC-46A77M No power ON
Thank you so much Dick_barton,
You already help a lot, I do appreciate your reply and your time.
Hope Mr. Budm and other experts will review this topic and help with sum suggestions like he and others always do.Leave a comment:
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Re: SHARP LC-46A77M No power ON
Thank you so much for your prompt reply,
Will try to replace it and see the results,
also if you can confirm the specification of R7914 as I do not have manual, also if it is ok to use normal resistor 2.2ohm 1W instead of using fuse resistor?
Not: The R7914 that I changed was normal resistor 2.2ohm 1W not fuse resistor like the original as i couldn't find in the city I live in.
Any support highly appreciated.Leave a comment:
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Re: SHARP LC-46A77M No power ON
Dear Dick_barton,
Thank you so much for your reply,
I check the R & D you mentioned and all ok, (of course the only part is not ok at the moment is R7914 because it is blow after I change)the only part that i did not check so far is the IC, I do not know how to check it.
Would appreciate any support
Thank youLast edited by RMCUNIVERSAL; 02-26-2017, 06:21 AM.Leave a comment:
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Re: SHARP LC-46A77M No power ON
Hi dskall,
Thank you for your reply,
I already check D7908 & D7909 even before I check R7914 as i was thinking that the Diodes shorted but both of the reading 1 way reading in the right direction, (I check them on the board with out pull them out)
The link you add I cannot go through, said I do not have permission to axes.
Please advice
Thank youLast edited by RMCUNIVERSAL; 02-26-2017, 02:03 AM.Leave a comment:
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SHARP LC-46A77M No power ON
Dear Experts and members.
I have Sharp LC-46A77M power supply model no: DPS-286AP-1.
After on from wall plug I header something pops, and the power went off with no sign of front power line.
I open the back cover to check if any thing that blow like the IC or any other fused and resistors, but I couldn't find any physical signs of damage, also I check if any DC voltage like the 5V at PD11 also the reading was 0v, I take the power board out for further inspection and I find that R7914 open, also I check if there any capacitor pop up but all looks ok,... -
Re: IC Number on DPS-286 AP/RDENCA336WJQZ Sharp power board
Hi Budm,
I have same issue, I find R7914 open ans I change it using resistor 2.2ohm 1W, when I on the power the new resistor directly blow,
Please adviceLeave a comment:
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