It heats up the integrated vertical of my lg
Send the brand and model of the equipment, to check if there is any diagram to guide us in measuring the voltages of the source.
The voltage output you are referring to may correspond to the video output, and that voltage is normal depending on the screen size.
some vertical ic are fed with that voltage of about 25v. therefore it is best to review the manufacturer's manual.
ok my friend pepa, when you mention that the IC warms up, that another fault presents the TV apart from that; Example: The TV turns off, The TV reduces the screen, Turns on and off alone, etc, ... what else does the TV present, because they took you, how did you notice that overheating failure ????
You say---
Good morning the integrated vertical of my lg heats up a lot by measuring the voltages and the power supply is at 28.8 l and the flyback output that is 180 is in 190. As I correct--
--- according to his diagram that he never shared, minus the chassis number- maybe I did not see well- I apologize if it is not-
As a first step I tell you that the vertical ICs heat up a lot - more on the newer TVs - what you need to play is the IC not the heatsink - the latter if it heats up, that's why it's placed, not the body of the IC-
I measured the voltages and the power supply is at 28.8v and the output of the flyback that is 180 is at 190. As I correct
- we do not know if these tensions are high or not - it can be a failure of your tester too --- the IC is colored with heat dissipating grease and tightly tightened - many plates have a tension printed, but do not work with them-
For me, the voltages do not vary on a TV - in operation - the characteristic of the IC in question is not commented on at least - on the other hand although it is true they have a tolerance range - for greater tension - if the manufacturer
If the manufacturer designed it to work with 26v and you measure 28.8v - it is not right it is not correct - it will heat up and as a result it will have a faster aging and it will break - it is super good that you place a PC fan to keep it cold. more if the spare parts are not of quality-
how to reduce this voltage- increase the R that leaves the fly- if it is 1 ohm medium W- as an example - place one of 1.2 ohm-1 w-
and see result if the IC- or 1.5 ohm heats up or not- see image if it covers the entire screen- always change electrolytic before an IC break- from its power-
give a few turns to the flybck core - try 3 - so start the cooler when the fly oscillates - if the cooler is 12v do it with 9v-
that voltage of + B is between normal, and for me the one of video that you measure of 190v I have also got to measure it up to 200v so the associated capacitor is 250v, in relation to the 28v that you mention of the good ic 2v neither Is the difference in relation to the diagram a lot? Is everything related to the function you give to the TV, for example, are you measuring the voltages with the TV on or in stamby? Are you injecting video signal either by AV or tunner? All this makes the voltages vary up or down !!! Be careful with that, my friend looks again with this data. comment and rate
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