[TechAssist] Re: Hitachi 60sx11k -AP 14 chassis. Big Pix Bending, poor sync
- From: <damon101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 10 Oct 2001 18:21:56 -0500
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
> database better! Submit your fixes here:
> http://www.circuitwork.com/techassist/tip/#tips
> To unsubscribe write to:
> techassist-request@xxxxxxxxxxxxx
> with unsubscribe in the subject line.
>
>
>
> Help make your TechAssist online repair tips
> database better! Submit your fixes here:
> http://www.circuitwork.com/techassist/tip/#tips
> To unsubscribe write to:
> techassist-request@xxxxxxxxxxxxx
> with unsubscribe in the subject line.
>
Help make your TechAssist online repair tips
database better! Submit your fixes here:
http://www.circuitwork.com/techassist/tip/#tips
To unsubscribe write to:
techassist-request@xxxxxxxxxxxxx
with unsubscribe in the subject line.
Other related posts:
