[TechAssist] Mitsubishi VS-4551 severe side barrell bowing, converg. out sides (VZ2 chassis)
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: "techassist@xxxxxxxxxxxxx" <techassist@xxxxxxxxxxxxx>
- Date: Mon, 14 Feb 2005 16:42:23 -0500
Good center convergence that adjusts in "test" mode
Sides are very bowed like a barrell (opposite of pincushion). with the
convergence way out.
Red way out worse on right, Blue out farthest on left. But both sides
are /really/ bad.
I read some related Mits tips on this model.Checked transistors
Q8F04,Q8F06,Q8F02,Q8F03 out of ckt for leakage.All OK. Checked diodes
D8F00,D8F01 for same out of circuit, all OK. Checked diode D501 same. OK.
As suggested by Mits.
As a test, I replaced both convergence ICs, both STK391-020.
Same.
I noticed after on some minutes I got a vertical arc-like distortion and
pull-in from top/bottom. I resoldered all that.earlier, so not bad
connection. Is this a possibility of bad yokes?
I need some advice here. I can't locate the svc manual either.
Phil Bader
--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: 2/10/2005
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
