Tv Lg Mod 21CA5RB-LD does not turn on
Your assessment "ACCEPTED SOLUTION" indicates in a reliable and undoubted way that you have already found the solution with the proposal raised 2 days ago by the colleague "victor flores martinez", in the title of the subject and in your initial comment, there is no requirement some diagram, so I do not understand your haste to qualify well, when a positive vote was enough (thumb up). That way you would continue to receive help and when the real solution proposal comes to value it as such, it is not possible now. In the old "YoReparo" the subject would be closed and you could not receive any more contribution.
comment number of source controller, microphone number etc and component number indicated on the board. with diagram you will be given the precise indications, where to measure, which components to review ....
Thanks the observation, not to find the solution yet, I could not evaluate, I apologize for any error, just comment, do not value.
The source Reg is the STR W6753, the LG631 is the 9R I said that when I changed the regulator I stabilized the 14V to the output of the regulator, now the imconcenient I have at the source output that should be 110V, but when measuring there is 115V, when giving on, turn off stanby focus but do not rock, do not turn on the TV and focus keep off, thanks your valuable comments ...
Thank you for your help, if you get the voltage to + B from the Flybac and TSH collector. with the novelty that when you turn it on, turns off stamby but does not start and goes off leaving no voltage at the source output and does not turn on the stamby focus again.
remove tsh, place a 60W bulb as welding load with 2 wires at points C and E left empty when removing tsh. now test if the focus stays on, measure voltage at + b in stand by and give it power.
Thank you for continuing to help, when the lamp starts, without giving it power and it lights the same as when the lamp is turned on, in Samby measures 5.30Vm ...
check the good condition of tsh, possible short distance between B and E of the transistor. if it is ok install again remove the bulb and try desoldering pin vertical ic
Thanks' ppor continue to help, I comment that I change vertical IC and TSH, but the fault continues, maybe they can help me with the diagram, but it is not the one that already helped me, this TV does not have the SE110, brings the 431A and being the same chassis, has different components, thanks ...
To stabilize the source voltage, change the tl431 and check associated components. Data aside, the micro jungle voltages in:
http://anotacioneselectronicas.blogspot.pe/2012/06/lg631-9r-tabla-de-voltajes.html?m=1
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Curso Refrigeración Comercial Aplicado a Diagnóstico y Reparación
