Hello, I have an Emerson LC401EM2F which had a blown fuse, searched on here and found it to be a diode that was bad. Changed the diode with the recommended part and that corrected the fuse blown problem. But all I am getting is a click as soon as I plug the tv in and that's it! I also get another click when I unplug the tv. Tv does not power up, no lights, not anything but a click. Anyone have any ideas what could be going on?
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Re: Click When Plugged In?
Try to locate the source of a click. A relay is sometimes found on LCD TVs which can cause this clicking sound.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.
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Hi there, i am currently diagnosing my corsair rm750 that wont turn on, after a power trip.
Before the power trip, previously i need to push power button on my pc case quite a bit in order to turn the pc (and power supply on), however after the power trip now i cannot turn the pc on at all and i opened the power supply, and found out some of the component(s) are blown. (picture attached)
My current diagnostic is that the (schottky) diode marked "SF" in the 5Vsb circuit are blown and possibly the ES1DF diode too.
Can anyone help me identify the component... -
Hello everyone,
I have recently gone to clean my laptop and noticed a bad Diode that's gone poof. I have also located it on the schematic also.
Whilst I'm good at repairing stuff in general, I would like some kind insight into what I'm working with here and the Diode I would need.
I have checked the whole laptop and suffer no issues usability wise, which is why I was shocked to find this, but am I right in thinking this is power voltage related?
Thanks in advance.... -
I've got a shorted SB390 diode which was in parallel with UF5408 diode.
d1031 = uf5408
d1035 = sb390
service manual pages 1-14-25 & 1-14-26
Ive found a equivalent for the SB390 in the SB3H90
what i wanted to know is it likely that the UF5408 has already been replaced?
As in originally both diodes would have been SB390s
So if i were to replace the pair could i replace both with SB3H90?... -
Due to some moisture the VGHP/HVS1 line shorted and this diode D8 blew. The picture is there. It just fades in after some minutes and is quite solarized. Updates again take minutes.
Any idea what Dioide to use? Thx.
Many thanks... -
Unit came to me and customer said they spilled liquid on it. Opened unit and inspected board and saw no signs on liquid reaching the board. Plugged in amp meter and it pulled 20v and booted normally, i connected to internet and ran update on the OS. Came in the next day to test again to make sure unit was functional, now its stuck at 5v and 0 amps no power, no shorts found on so far.
Tested all CD3217 and RAA489900:
UF400
PP3v3_UPC0_LDO- 3.48v, .473 Diode
PP1v5_UPC0_LDO_CORE- 1.59v, .504 Diode
USBC0_CC1- 0v, .455 Diode
USBC0_CC2- 1.66v, .454 Diode...
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