Riddled TV Repair Forum

Guest · Posted: Sat Jun 16, 2007 11:01 pm Post subject:

Don, what happens when you turn down the screen control on the fly? I just
finished a CTC187CN3, a 32"er. It had a bad 100UF.250 V. cap in the SMPS
circuit gone bad queer display tho. Also some bad solder around the fly and
pin xfmr.

Terry

Google

Guest · Posted: Sat Jun 16, 2007 11:01 pm Post subject:

Terry, adjusting the screen controle only darkens the picture, the lines remain. Do you have a location number on that 100mf/250v cap? I dont see any at that value in here.
Don

Guest · Posted: Sat Jun 16, 2007 11:02 pm Post subject:

on the 200v source to the R,G,B outputs.......
Peggs

Guest · Posted: Sat Jun 16, 2007 11:02 pm Post subject:

Terry, I stand corrected, I found that cap and I do not have that value (100mf/250v) in stock. I do have one at 100mf/200v. I guess this will have to wait.
Don

Guest · Posted: Sat Jun 16, 2007 11:02 pm Post subject:

It is located in front of the SMPS transf. It is C4107K on this chassis.

Terry

Google

Guest · Posted: Sat Jun 16, 2007 11:02 pm Post subject:

No I'd not use a 200V. it will come back to haunt you. They don't overkill
when they build these things. I also had only a 200V. So I did find a 350V.
on thats a bit overkill but will be OK tho. Have a nice weekend all you
great techs.out there.

Guest · Posted: Sat Jun 16, 2007 11:03 pm Post subject:

Don follow from pin#6 of flyback to R4701 a 10 ohm resister to Cr4702
diode to C4703 a 47X250 volt cap
you should have 185 volts on that cap if low change it..Eric

Hilton · Guest

Don, I haven't read all the post on this problem yet,
but don't overlook the eprom. I've had several sets
with retrace lines , sort of looks like a weak crt
only ending up being the eprom. Be blessed, Hilton

alexmotta · Joined: 30 Jan 2009 Posts: 2

I am sorry to intrude in your topic, but I am about to retire a GE 35GT695 with a CTC187CN3 chassis because I don't have the circuit schematics. Would someone have it? Or would someone know where I can get it? Thanks!