46" RCA projo tv model:P46729BADX1,chassis:PTK169PCA (CTC169PC),year:June 1994.
One day customer tried to turn it on and all he got was a Pacman type power supply noise (digital noise) for a few seconds,I checked Q4101=SGSIF461=RCA # 200165 and it's not shorted,I also replaced C4102=2.2 uf,100v and C4104=15 uf,50v but still.
I don't have a C4108=39 Uf,100v cap in stock nor do I have an ESR meter, I never do service calls nor repair projection tv's so I need as many repair tips as possible as this tv is for a neighbour.
Thanks for your time and effort.
Re: 46" RCA TV model:P46729BADX1,chassis:PTK169PCA
No score for this post
June 27 2006, 8:03 AM
Hi Steve,I disconnect the HV splitter and still no go,but I found Q4401F=HOT=2SD1885=RCA # 200167=NTE2324 shorted and R4314U=39 ohms,1/2 watt to be visually burnt (comes from 15v SMPS supply),anyone know what caused these two parts to fail?.Thanks in advance for help.
Scoring disabled. You must be logged in to score posts.
I did not yet change the HOT as I have not yet gone back to my neighbour's place but I have a used 25" GE TV model:25GT511,chassis:CTC185AA3 and it has a CR4105U=PFR-854=NTE576 can I use that in place of CR4118=164590=NTE580 out of the 46" RCA projo (CTC169PC) that I am working on? as I have noticed that most CR4118's on CTC169s use PFR-851 or 856 or FR-305.
Also I pulled a used HOT capacitor out of an old 27" Sony tv and the numbers stamped on the blue cap are:
PM564J
400V
is that a 0.056 MF,400V? because I measured it with my Fluke DMM Series II model:29 and it was 564 nf.
