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Tube TVs
tv samsung chassis k15a without image, without audio.
17
hace 5 años
hace 5 años
good morning friends of me I repair, please help me with this tv, it has directv installed, it turns on normal, you can see when we change the channel, when we turn up and down; But it has no image or audio. I did a test with a DVD and the movie looks and sounds good. I measured the voltage in the eprom and it reaches 5v. and the tuner also reaches voltage. What else should I measure to get to the fault?
17.741
hace 5 años
hace 5 años
Comment on all tuner voltages.
Make a good review of welds throughout that area verifying that the form is not cut. Try injecting FI signal another TV walking to the tv that does not walk. If audio and video comes out it is the bad tuner. If you don't know how to make the connection, say and I will explain.
If you do not give video and audio, change the SAW filter.
I commented result. To follow.
17
hace 5 años
The tuner is a tecc1070pg31a (s). measure. scl- 4.87v., sda- 4.87v., 5.45v., 32.8v. I already solved the plate, washed it with isopropyl alcohol. I installed a DVD and also the deco directv and image and audio apologize luis; what is the saw filter on the card.
17
hace 5 años
I got a tuner tecc1070pg26b. it will be compatible with the tecc1070pg31a (s) that this tv uses. I searched the internet and it didn't arrive.
17.741
hace 5 años
If you follow the form from the corresponding tuner pin FI takes you directly to the SAW filter.
Maybe you figure it as SF101.
22.858
hace 5 años
hace 5 años
Check if your decoder brings audio and video output if tae use those outputs as if it were the DVD.
9.501
hace 5 años
hace 5 años
hello colleague: contributing something more ... those tensions in the sda-scl- seem to be fine ... if it has rain on the screen it can be tuner .... if the q, has to replace it has the same amount of pins verify the original q, is on the TV in q, pins enter the 5v power supply and the33v tuning ... verify in q, pins enter sda-scl- and then buy with the q, it will replace ... usually if it brings the same pins may work ... there may be some difference with the AGC voltage ... the SAW-FILTER filter is the (SF101) .. check if there are no cut tracks between pin7 of the hedge, and the input to the base Q151 ... measure if the voltage reaches 9v to Q151 ... check if the SF101 is properly welded and the connections q, leave SF101 until pins 7 and 8 of lc201 ... greetings!
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