Hi, I need the values of r628 r636 r621 and r637 because are very damage and is not possible see the details of these resistors. Thanks

You can check it by reducing the value of the resistor, connected to ground at one end of the deflection yolks' vertical scan out windings. Usually, this resistor will vary a value of 1.2 Ohms to 2.2 Ohms. But, if you reduce this value too much, to say at about 0.15 Ohms or so, there is a possibility of damaging the vertical scan output IC.
So, do this very carefully. It is a trial and error process.
Check it with gradual reducing this value of this resistor; by 0.25 Ohms at a time. Wish you success. I hereby advice you, assuming that the horizontal width of the picture is OK.
If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

HI.We cannot really but identify the correct resistor value unless we can identify or determine the color coding on the resistor.Each color has a corresponding value and tolerance as well.If you can't indentify the color coding then you can refer to its diagram usually printed out on the side of the control board or near thecontrol board.We cannot but cannot give a guess value unless color coding is given.Thank you for choosing FIXYA.

Hi wrightjc2,
Most common burned resistor are those with low resistance because it acts like a fuse to avoid further damaged to some parts if shorts,overload happened. But still best to have a schematic diagram to identify the burned one. If you haven't a schematic you may get the resistance of the resistor, measure it to the middle where the burned cut out, add the resistance from one half side to other half side. You may now have an Idea what may be the value of the burned resistor.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

You have not mentioned what electronic equipment you are requesting the details.
You will be able to confirm the transistor value from the stage where it has burned which also goes for the resistor. So take tech help than to try with trials to damage the set much further.

Hello Gio, Hi, a burned resistor is usually caused by a shorted part like a semiconductor or regulator, there are two things you should do, find the value of the resistor and what caused the resistor to burned, for the Resistor, the value is usually written on the board, If not you can find the value on schematics diagram (which is usually hard to find, but if you have one, fine), and on the same working model (very remote a possibility). IF this are not available, you now need the assistance of a technician.

Go to an electronics parts shop and take the damage resistor with you.

The bands are a colour code (the first two bands indicate the first two numbers, the 3rd one is for the number of zeros and the fourth one is the accuracy of the value e.g. 5%, 10%) for the value of the resistor.

The physical size of the component gives an indication of the current that it can carry.

Check in the area for amsll pico fuses or low valued resistors. These are often damaged when the ICs fail. Please verify your model number so we can provide additional details.

Thanks,
Dan

Which resistors?

It is recommended to use the same value due to the function of the resistors and their values.
A lower value will let the current flow a bit faster and the higher value will slow it down according to their design.
Try installing the same value of 220 ohms.
Hope this helps.

i would not recomend replacing the 7w with the 5w, beacuse the resistor will allways run hot, hotter then the resistor should be. the resistor could possible melt anything that touches it & will not last as long as the original before it goes bad. find a 7w, if just for safty reasons.