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TVs

red spot next to the tv

sandes luis daniel
hace 6 años
hace 6 años
good night I have a 29 "PHILCO TV model PS2917, which has 2 problems that I can not solve, to see if you with your experience can help me, first has a red spot on the left side of the screen which associates with the PTC which changed and I did not find it then I passed an electric device on the screen and when I did the course I talked about whether it is magnetized by passing a device on it was resolved, but neither, please if you can help me I will thank you, the The second problem I have is that when connecting the audio and video input, the image is given in black and white, but not if I connect by tuner, thanks for your time and for helping me,
nicomena2015
nicomena2015
9.501
hace 6 años
hace 6 años
Hello colleague: if you have a Vesuvius welder, pass it in front of the stain by triggering consecutively .... you have to make sure if ptc works well ... when you turn on the TV the ptc takes a lot of temperature and decreases later ... touch with finger the ptc when it gives power or when you plug in the tv and see if it rises high temperature ... wait for the ptc to cool ... and then do the test described ... if it does not heat the ptc check welds in that area .... if the stain is revealed, it will have to be used, to resort to some more powerful demagnetizer .... do not pass magnets on the screen as it is not recommended .... as the TV needs to neutralize the internal mask and that is what , does the ptc q, energizes the demagnetizing coils with alternating current from the network ... the prob, of the black and white put the tv in the AUTO option or put the dvd in the NTSC option .... greetings !!
sandes luis daniel
hace 6 años

thank you my friend I will do what I indicated very kind today I tell you how it went, again thanks

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Javier Chavez C
hace 6 años
hace 6 años
Has the yoke or the block of magnets of PURITY and CONVERGENCE been removed or replaced? Well, if the YUGO has been removed or removed from its position, when placed, it may have been aligned or misplaced ...... another alternative is that the purity magnets located in the convergence ring block have also been misaligned from their position. factory setting
sandes luis daniel
hace 6 años

hello partner not this device never opened I am the first to touch it, I will also notice, thanks for your time

Responder
Javier Chavez C
hace 6 años

OK thanks.
Check the good condition or continuity of the demagnetizing coil and components in its working circuit: such as the PTC thermistor track connections on the card and if necessary (some models have an exclusive Relay for this stage) also verify the good condition of the Relay

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sandes luis daniel
hace 6 años

Thank you my friend, do you know of any demagnetizer that can happen and be effective as the previous colleague told me to spend a Vesuvius welder? since it seems that there are many ways a colleague told me of a hole punching it on the screen but that did not work for me, since I am already very grateful for his time and for sharing his knowledge, hug

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Javier Chavez C
hace 6 años

Any tool that generates magnetic field with alternating current. (Drill, welding gun, etc)
You can also use the demagnetizer of another TV with your PTC thermistor and bring it closer to the TRC ahead

Responder
Javier Chavez C
hace 6 años

Any tool that generates magnetic field with alternating current. (Drill, welding gun, etc)
You can also use the demagnetizer of another TV with your PTC thermistor and bring it closer to the TRC ahead

Responder
sandes luis daniel
hace 6 años

Thank you

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Javier Chavez C
hace 6 años

I miss the like

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