My tv started taking a long time to turn on but worked ok,now it won't come on and all i get is a buzzing or squeel when plugged in.Any ideas on the problem and how much to fix?
Depending on the chassis you have in this set, it could be the main high voltage transformer along with a blow horizontal output transistor, could be a bad capacitor in the chopper power supply. A repair as this should , and this is a guess, about 150 to 250, depending on the exact problem. Good Luck and please keep us informed of your progress and if you got your set repaired.
I found these problems with this chassis in the past
CTC203AD5
Dead,squeal,HOT shorted then No HV sound ok
Resolder everything even if it looks good.
CTC203
No power- shorted horz out xister
Be sure to check L14401 coil for bad solder joint
Comments:Problem can be highly intermittant, can appear to be fixed by replaceing horz. out xister, but will happen again, I have seen quite a few of these
CTC203AD5
Dead has loud squeel
Horz out transistor 2SD2578 shorted replace and check conections
Maybe it wont cost as much as What I said. Now I remember this set has a small coil that connects the horizontal driver transfomer secondary to the Base of the horizontal output transistor, that needs to be takern out and the ends scrapped off and resoldered. And the Horizontal output transistor will most likly be shorted and have to be repalced.
we have a rca-27442 tv , its digital and i some how erased ch 3 and now i cant setup auto channel setup, when i go thru the setup process it keeps saying (no usable signal)thks for any help?
Depending on the chassis you have in this set, it could be the main high voltage transformer along with a blow horizontal output transistor, could be a bad capacitor in the chopper power supply. A repair as this should , and this is a guess, about 150 to 250, depending on the exact problem. Good Luck and please keep us informed of your progress and if you got your set repaired.
Thanks for info Larry.Tv has chassis #CTC203AD9,but probably not worth fixing if costs that much.Thanks again for the help!
I found these problems with this chassis in the past
CTC203AD5
Dead,squeal,HOT shorted then No HV sound ok
Resolder everything even if it looks good.
CTC203
No power- shorted horz out xister
Be sure to check L14401 coil for bad solder joint
Comments:Problem can be highly intermittant, can appear to be fixed by replaceing horz. out xister, but will happen again, I have seen quite a few of these
CTC203AD5
Dead has loud squeel
Horz out transistor 2SD2578 shorted replace and check conections
Maybe it wont cost as much as What I said. Now I remember this set has a small coil that connects the horizontal driver transfomer secondary to the Base of the horizontal output transistor, that needs to be takern out and the ends scrapped off and resoldered. And the Horizontal output transistor will most likly be shorted and have to be repalced.
we have a rca-27442 tv , its digital and i some how erased ch 3 and now i cant setup auto channel setup, when i go thru the setup process it keeps saying (no usable signal)thks for any help?