I managed to source this diode, soldered it back in and TV is all back together now and working great
Thanks again....
ddjmagic
New Member
Last Activity: 11-02-2021, 01:44 AM
Joined: 10-22-2021
Location: FL
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Re: Sharp LC-52SB55U (No Power)
I managed to source this diode, soldered it back in and TV is all back together now and working great
Thanks again.... -
Re: Sharp LC-52SB55U (No Power)
Thanks for this. I can confirm with everything back together except D7908, everything operates and powers up correctly.
I just need to find a replacement diode now and I think I'll be good to go.
Thanks everyone for the help....Leave a comment:
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Re: Sharp LC-52SB55U (No Power)
D7908 seems to be showing a short on the tests? Unless I'm reading the meter wrong (also has continuity both ways)
R7914 seems to test all good, there is no voltage at C7918 or C7915 at all....Leave a comment:
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Re: Sharp LC-52SB55U (No Power)
Thanks. D7909 tests fine off the board but D7908 is still testing bad off circuit.
D7909 test good back on the board. So it seems that D7908 diode is no good.
Does anyone know where in the UK something like this could be purchased?
Could potentially something else have casued the bad diode?...Leave a comment:
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Re: Sharp LC-52SB55U (No Power)
The last place I seem to be finding any DC voltage is diode on the center of the board (D7908).
I've checked D7908 & D7909 (next to it) in circuit and both are showing very low resistance in both directions (0.02), other diodes I can see test 0.6 & OL, so potentially D7908/D7909 diodes could be the issue?
Would the next step be taking them out of the circuit and test again?Leave a comment:
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Re: Sharp LC-52SB55U (No Power)
Great, thank you. I'll have a look through that.
Anyone know of any common problems/most likely issue on this board?...Leave a comment:
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Sharp LC-52SB55U (No Power)
Hi all, I'm looking for some help with Sharp LC-52SB55U.
It's a US model, but currently being used in the UK for a few years (TV is 100-240V Power)
Currently the TV does not power on, no lights or noises when the power button is pressed.
I was not present when the TV stopped working but apparantly the TV randomly 'clicked' a few times while the green light came on and off a few times, since that it hasn't powered on or shown any lights.
I have taken the TV apart and the power board is RDENCA295WJQZ (DPS-277BP)
I've checked... -
Re: New Members - please post your introductions here
Hi all, new member, looking for help and advice, have basic understanding but looking to learn more from members here. Thanks, Dan.Leave a comment:
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