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Tube TVs

Ken Bromw KB-2-29 Slim B Brings the Trh TT2076 and in the PlanFigure D

carrizo oscar julio
hace 5 años
hace 5 años
I have to change this transistor that brings the TV has everything well the voltages of the source and + b but it does not turn on and I am surprised that the diagram shows another transistor. Bring the tt2076 that has no damper and the diagram shows the d5023 that if damper brings I realize that the diagram is fine because it has everything the same except this transistor that is not that of the diagram. This tr does not oscillate so it does not turn on the TV . It may be that this TV has been in another workshop and you have changed this tr.
Victor E
Victor E
65.783
hace 5 años
hace 5 años
If it is the psw29uta chassis, there is no diagram, only the px20072 chassis diagram is used and there is a different transistor from the one that brings the psw29uta chassis. Now, there is another problem and I do not think it is for the transistor.
carrizo oscar julio
hace 5 años

you are right victor the chassis is psw29uta may have brought that trh is the voltages are all but those of flay because the trh does not oscillate.
I measured all the capacitors with the capachek and they give me good.
control with the oscilloscope and the jungle does not send the signal to the trh even though it has 4.7v at the vcc hout input

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Victor E
Victor E
65.783
hace 5 años

Measure at the base of the driver if tension or sawtooth appears when giving power.

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carrizo oscar julio
hace 5 años

in the beginning I had 0v in the driver transistor collector and I didn't have the 5v for the jungle vcc hout but if I had the 9vol in the emitter and collector trv571un the v571 and the 5v appeared for the jungle they were actually 4.7v but it was still having 0 v in the driver transistor, lift the collector of the driver transistor and the 26v appear, change the driver transistor and the vertical ci, and in the collector of the driver transistor it had 12 to 13v. I have 120v of + b I have power to the jungle vcc hout I have voltage in the tr driver but the phone does not start there is no signal in the base trhoriz.

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Victor E
Victor E
65.783
hace 5 años

It can be flyback or the same micro jungle

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carrizo oscar julio
hace 5 años

I already changed the micro jungle and it remains the same which leads me to think that flyback is these days I will also change what happened is that I still haven't got the original

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carrizo oscar julio
hace 5 años

I see that the micro jungle in its pin 43 has communication with the flay in the pin 6 of the same that would be the feeding of the filament and in turn with the pin 8 also of the flay.
This micro pin is indicated with the acronym EHT, what does this mean?

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Victor E
Victor E
65.783
hace 5 años

Protection circuit

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carrizo oscar julio
hace 5 años

what voltage should i measure on pin 43 of the microjungle

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Victor E
Victor E
65.783
hace 5 años

4.7v

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carrizo oscar julio
hace 5 años

I do not get the flay bsc27-05n2537r and they told me that it has no replacement I am thinking of buying the one that comes universal and I apologize I apologize for the delay in answering but this TV is taking me too long then I advance on others that I have in the workshop so that I do not work is piled up and delayed with other jobs

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Victor E
Victor E
65.783
hace 5 años

place this one that replaces that, BSC 27-N0707, regards.

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carrizo oscar julio
hace 5 años

thank you very much for the tip friend

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carrizo oscar julio
hace 5 años

I thank you for your help, my friend Victor, who very kindly helped me to solve this problem and to the technicians of I repair that they always respond and give me their support have helped me to solve many difficulties that have presented me in the repairs thank you very much

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Victor E
Victor E
65.783
hace 5 años

give solution to my proposal greetings

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