[TechAssist] Re: Hitachi 60sx11k -AP 14 chassis. Big Pix Bending, poor sync
- From: Michelle Williamson <michelle@xxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 12 Oct 2001 17:13:44 -0400
on the new hitachi the comb was not a promblem
damon101@xxxxxxxxxxxxxx wrote:
> Yeah I think it is a 60sx11...or a 10. I don't have the info in front of me
> right now, but I'm pretty sure it's 11. Didn't even realize the Subject info
> was off, thanks. A lot of techs have been pointing to bad caps on the PIP
> and/or the Comb filter ckt. That comb filter problem kinda rings a bell.
> Anyhoo, I read that a kit from Hitachi is available for the caps, but no
> info re: part # or if Hitachi has a website with model info or not.
>
> I don't think I'll need schematics, but if so I'll call you.
>
> Thanks,
> Damon Brunger
> damon101@xxxxxxxxxxxxxx
> Telrad Electronic Services
> Ft Wayne, IN 46815
> ----- Original Message -----
> From: "TechAssist Admin." <techassist@xxxxxxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, October 10, 2001 11:59 AM
> Subject: [TechAssist] Re: Hitachi 60sx1k -AP 14 chassis. Big Pix Bending,
> poor sync
>
> >
> > Damon, is this a 60SX11K? If so, I have the manuals if you
> > need them. I have no tips on this problem.
> > -Clint
> >
> > God Bless Us All
> > Clint Hamilton, Owner
> > http://OrpheusComputing.com
> > sales@xxxxxxxxxxxxxxxxxxxx
> > Tech-Assist Administration
> > http://tech-assist.org
> > techassist@xxxxxxxxxxxxx
> > (PLEASE include previous correspondence
> > if replying to this email!!)
> >
> > ----- Original Message -----
> > From: <damon101@xxxxxxxxxxxxxx>
> > To: "TechAssist" <techassist@xxxxxxxxxxxxx>
> > Sent: Tuesday, October 09, 2001 8:24 AM
> > Subject: [TechAssist] Hitachi 60sx1k -AP 14 chassis. Big Pix
> > Bending, poor sync
> >
> >
> > Hello everyone,
> >
> > Recently worked on a Hitachi PTV ap14 chassis with darker
> > than normal picture, no or erratic vertical sync and
> > horizontal bending only at the bottom 1/3 or top 1/3 (not at
> > the same time).
> >
> > I tested the sync signal at the vertical output and horiz
> > drive using the NTSC generator and found that they were
> > locked to the generator. Also tested the power supply and
> > found about 2 volts of ripple on C952, C957 & C958. Gonna
> > replace those caps...
> >
> > I checked the PIP and here is my concern: The small Picture
> > is not present using video 2 (Pip's main source is only Video
> > 2) and is replaced by a green field. Video 2 is present on
> > big picture so the failure point must be in the PIP. The
> > customer doesn't care to have the PIP replaced unless it
> > fixes his scrambled Big Picture. Has anybody seen the Big
> > Picture lose sync in the Pip? Yet the horiz/vert outputs are
> > locked to the sync. Slightly weird set of symptoms, I would
> > have guessed bad sync at the outputs and looked at power
> > supply, or the video jungle IC for starters. Any help would
> > be appreciated, I only get 2 or 3 Hitachi units a year.
> >
> > Thanks in advance,
> > Damon Brunger
> > damon101@xxxxxxxxxxxxxx
> > Telrad Electronic Services
> > Ft Wayne, IN 46815
> >
> > Help make your TechAssist online repair tips
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> >
> >
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> >
>
> Help make your TechAssist online repair tips
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