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My tv parker is badly heard with noise and there is a moment I don't w

Cruz
Cruz
8
hace 5 años
hace 5 años
Dear family of experts, this tv parker came again, chassi 782ts2055-0100 is a case already touched by you, first it was that a vertical stripe was seen and it was solved, then you will swallow it because the image looked blurred and thanks to you it was solved, now it presents a problem when turning it on which I press the button it tries to turn on, the current screen is loaded, but it does not turn on. that is, when pressing power instantly turns on and off, it is as if it were protected, I give it several times to turn on and give it so much, it looks good, but the volume does not, is half heard but with noise, it is as if I was poorly tuned, chuuuuuu chuuuu chuuu and short, ,,, please friends who will it be ??? I need your guide please ... thanks
Javier Chavez C
hace 5 años

If you are working with a Diagram, please post the link for an appropriate development of the topic.

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Cruz
Cruz
8
hace 5 años

no, my javi, I don't have a diagram ... the TV of so much insisting turned me on and I still have it on, but as I told the only partner, I will check the capacitors to see if any is deficient, and with respect to the volume it seems that it was tuned because when it comes to seeing well the volume improves but with noise ... thanks for writing friend ...

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Javier Chavez C
hace 5 años

Will there be any other inscription printed on the main card or mainboard? Thank you

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nicomena2015
nicomena2015
9.501
hace 5 años
hace 5 años
Hello friend: you have reviewed welds on the pins of the fli-bak ... change the Capacitors of the + b ... those of 100mfx160v ... and those of lower voltages at the source ... if you have the diagram publish it .. .review the X-RAY .... comment on the tv model ... ok ... greetings !!!
Cruz
Cruz
8
hace 5 años

Thanks for answering my king, well I have not solved it but I will do it, I will take out the capacitors that you tell me about the B + to measure it and those from the source ok ok well and hey no I don't have the diagram :( you know that regarding the volume , it is as if the tuning is bad because when you tend to see clearly the volume improves, it gets strong, but with noise .... thanks nico ...

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nicomena2015
nicomena2015
9.501
hace 5 años

ok friend ... when a channel falls a little out of tune it shows first in the image a little distorted ... then it can affect the audio ... check if by A / V or video you have good sound ... if x video you have good sound can be that, it does not tune the channels well ... check the AGC in the sitonizer ... it should be maintained at about 4.5v .... measure if the sinus receives well regulated supply voltages ... 5v and 33v tuning ... check the ABL pin on the fli-bak ... it usually has a capacitor of about 0.1 mf x 250v between the ABL pin of the fli-bak and ground ... if this damaged can make noise in the audio

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nicomena2015
nicomena2015
9.501
hace 5 años

colleague: check if this diagram is similar to the plate you have in repair ... comment if there are similarities of components ... ok ...
https://www.mediafire.com/file/d1lwl3afjcpdisc/Parker_KVP-2126C___Chassis_782_TS-2030.pdf/file

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Cruz
Cruz
8
hace 5 años

thanks nico darling resolve the capacitor of the + b ... those of 100mfx160v and that solved that it turned off quickly when turning it on and the volume began to be heard well thanks to you and God ... thanks

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nicomena2015
nicomena2015
9.501
hace 5 años

hello friend rafa24oro ..... I'm glad that my contributions were useful to you ... thanks for sharing the solution ... and we are always here to help you when you need it ... we are glad to see your dedication to this very impressive job of electronics ... luck in your profession ...
regards!!!

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Javier Chavez C
hace 5 años
hace 5 años
The problem of delay when switching on: Touch up welds on the microprocessor pins. Check the good condition of the + B capacitors, on the VCC H pin and those on the EEPROM and microprocessor supply voltage line from its source source in the Chopper transformer.
Cruz
Cruz
8
hace 5 años

thanks nico darling resolve the capacitor of the + b ... those of 100mfx160v and that solved that it turned off quickly when turning it on and the volume began to be heard well thanks to you and God ... thanks

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Cruz
Cruz
8
hace 5 años

thank you javi thank you very much

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Javier Chavez C
hace 5 años

Regards.
Until a next opportunity.

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Cruz
Cruz
8
hace 5 años

javi excuse me how do you read a polyester capacitor ??? The description is like this :: 622H 1.6KV ... thanks

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Javier Chavez C
hace 5 años

The last figure is the number of zeros and is at peak faradios.
622 = 6200pf / 1.6 Kilovolts

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