On Tue, 1 Dec 2009 06:05:54 -0800 (PST), b
put finger to keyboard and composed:

On 1 dic, 12:30, Franc Zabkar wrote:
On Sun, 29 Nov 2009 09:58:52 -0800 (PST), b
put finger to keyboard and composed:

I am currently trying to upload the
extract form the schematic, will post link here when I do.

see here
http://www.filefactory.com/file/a1fb...E_E14_vert.jpg

Have you changed the electrolytic capacitor on the 25V rail near the
FBT???


yeah, c427 1000uF. Picture still distorted.
I think I will just take a chance and change the IC again.
-B

Why not break out the oscilloscope and take some measurements?

I'd look at the input at R303 (not IC pin 1), and I'd compare it
against the signal at the current sense resistor, R310. AFAICT, both
should be sawtooths (sawteeth?).

BTW, I believe R310 should be a 1R5 resistor, not 1M5 as shown in the
diagram.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.