View Full Version : capacitor issue


josephdaniel
07-10-2012, 06:51 PM
I have picked up another zzenith black and white tv set this weekend and I was able to order all of the caps and resistors exceps for a few parts that I need help with.
I have a .0047 mfd cap and a .0068 mfd cap I can't find this value anywhere so I was going to make some but I dont know the valus of capacitors that I would need to add up to or down to those odd valus.
also there is a thing on my board thet looks like a ceramic capacitor but it has three legs it is completely busted on the schematic it is listed as m7 part no. 87-5 verticle what would I use to replace this?

ctc17
07-10-2012, 07:13 PM
Dont change all the resistors! thats insane!

If you must, change the electrolytic caps, wax and black beautys.

The 3 leg thing is an integrator. Its very important, its a series of resistors and capacitors. You can make one, I have some of the schematics here. http://boxcarcabin.com/integrator.html

Again with the resistors especially, dont introduce all that new chinese junk in that set, you are opening yourself up to nothing but a headache.

Also those cap values are very common, i can go to the local store and get them. Maybe look for them as 4700pf and 6800pf but i wouldnt change them unless they are wax or blacks.

josephdaniel
07-10-2012, 10:29 PM
I didn't mean all the resistors and caps just the ones that I checked off on my list that were out of tolerence. Im not that crazy....lol

ctc17
07-10-2012, 11:06 PM
Cool. What is the model/chassis number?

josephdaniel
07-10-2012, 11:16 PM
The chassis number is 17y20 its the exact same as my other one.
Also what are the voltages for the caps inside the integrator?

ctc17
07-10-2012, 11:32 PM
Wow thats an old one.

Use 1kv disc caps.