CTC 203 heater filament circuit
 

Would anyone know where that could be found on the chassis? Thanks. Mark.

CTC 203 heater filament circuit
 

"Mark" wrote in message
. ..
Would anyone know where that could be found on the chassis? Thanks. Mark.



Wouldn't it be easiest to just trace it back from the CRT socket?

CTC 203 heater filament circuit
 

I'm pretty sure the filament comes from the smps on the 203, not the
flyback. In any case, trace the leads from the CRT socket back as
James suggests. Easy.

John

CTC 203 heater filament circuit
 

The CTC203 chassis is "famous" for no raster/filiaments,
caused by a bad connection @ L14401 coil in the horizontal
drive circuit. Remove the coil, clean it up, & resolder it. It
should be fine. If left too long (while testing it), it will blow the
horizontal output, & PWM power supply. Sky.


"Mark" wrote in message
. ..
Would anyone know where that could be found on the chassis? Thanks. Mark.

CTC 203 heater filament circuit
 

On 19 Oct 2005 05:16:32 -0700, "John-Del" wrote:

I'm pretty sure the filament comes from the smps on the 203, not the
flyback. In any case, trace the leads from the CRT socket back as
James suggests. Easy.

John


I'm surpised that you said this, since RCA for decades runs heaters
off the fly or horizontal load transformer (seperate H sweep and HV
circuits design if used like on DTV306/307.

Cheers, Wizard