Dennis, MEK. The I tried soap and water--no good. Ditto for alcohol. Oh, yes, I used the MEK in a well-ventilated environment! I should have stated that this is a PTK169. Ken Smith Gulf Technical Services 3034 Gulf Breeze Parkway Gulf Breeze, FL 32561 850-934-8324 (Voice) 850-932-0819 (Fax) ----------------- On Sun, 30 Dec 2001 17:35:28 -0800 Dennis Viereck <wa6ati@xxxxxxxxxxxxxx> writes: > > What did you use to clean the messy compound from the bumpers? > Dennis > > gulftech@xxxxxxxx wrote: > > > Friends, > > > > I haven't posted this as a problem before, because I couldn't > identify > > the problem well enough to ask for help. After many, many hours > of work > > and two failed attempts to return the light box to the customer, > the set > > is finally fixed and I hope this will help others in the future. > > > > The set came in with the complaint of instant shutdown. The green > CRT > > was arcing at the second anode. There appeared to be a contaminant > > spilled in the area. Cleaning and RTV appeared to repair the set. > > > > Took lightbox back to customer. Found light horizontal lines, > almost > > like retrace on all three CRT's. Had not seen in shop. Also, > appeared > > to have a slight sync problem. For example, bring up convergence > > crosshatch, vertical lines had slight "s" shape in middle. > > > > After many hours of troubleshooting and failed attempts, tried PIP > pix. > > PIP image was totally out of sync, like is typical of Mitsubishi. > Pulled > > the PIP module. It had three rubber bumpers to isolate the pcb > from the > > shield. These bumpers had melted like Hershey's Kisses. What a > mess! > > Also found seven bad caps. For the record: C424, C425, C426, > C501 (all > > 15ufd, 50V), C318/.47@50, C518/10@50, and C121/25@100. Most of > these > > caps check good with a normal cap meter, but high ESR. > > > > Set works fine now. > > > > Ken Smith > > Gulf Technical Services > > 3034 Gulf Breeze Parkway > > Gulf Breeze, FL 32561 > > 850-934-8324 (Voice) 850-932-0819 (Fax) > > > > ________________________________________________________________ > > GET INTERNET ACCESS FROM JUNO! > > Juno offers FREE or PREMIUM Internet access for less! > > Join Juno today! For your FREE software, visit: > > http://dl.www.juno.com/get/web/. > > ------------------------------------------ > > Help make your TechAssist database better! > > Submit your fixes here: http://circuitwork.com/techassist/tip/#tips > > ------------------------------------------ > > To UNSUBSCRIBE your email address, click here: > > mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe > > Or send a BLANK email with unsubscribe in the > > SUBJECT field to the address above. > > ------------------------------------------ > Help make your TechAssist database better! > Submit your fixes here: http://circuitwork.com/techassist/tip/#tips > ------------------------------------------ > To UNSUBSCRIBE your email address, click here: > mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe > Or send a BLANK email with unsubscribe in the > SUBJECT field to the address above. > ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/. ------------------------------------------ Help make your TechAssist database better! Submit your fixes here: http://circuitwork.com/techassist/tip/#tips ------------------------------------------ To UNSUBSCRIBE your email address, click here: mailto:techassist-request@xxxxxxxxxxxxx?subject=unsubscribe Or send a BLANK email with unsubscribe in the SUBJECT field to the address above.