[TechAssist] Re: JVC SR-L901U time lapse playback problem

  • From: peggs <peggs@xxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx, <techassist@xxxxxxxxxxxxx>
  • Date: Tue, 24 Feb 2004 16:20:01 -0800

Winstips has several tips(different symptoms) with bad caps as the
cause

Peggs

At 02:11 PM 2/24/04, J Silverman wrote:
>Swapped and unswapped! This model does something for the 24 hr record that I
>have never seen in another model. The record RF is gated so that only every
>third field is recorded with an EP head. That means that only 10 pictures
>per second are recorded. In playback 30 pictures per second are needed for
>the NTSC monitor, so it is supposed to play the same picture 3 times. But it
>is only playing back 10 pictures per second with a gap between each picture.
>According to the service manual, the 4 EP heads are supposed to be switched
>according to a "preset algorithm" to play back the same picture 3 times so
>that there is no gap in the RF envelope. It just is not doing it.
>If I play back the 24 hour recording in the 8 hour speed it plays OK, but it
>is supposed to play the 24 hour recording in the 24 hour speed too.
>Jerry Silverman
>Greentron Inc
>4 Newland Ave
>Greenville SC 29609
>864 232 3889
>Fax 271 2080
>mailto:greentron@xxxxxxx
>----- Original Message -----
>From: "peggs" <peggs@xxxxxxxxxxxxx>
>To: <greentron@xxxxxxx>; <techassist@xxxxxxxxxxxxx>
>Cc: <techassist@xxxxxxxxxxxxx>; <Techassist@xxxxxxxxxxxxx>
>Sent: Tuesday, February 24, 2004 11:30 AM
>Subject: [TechAssist] Re: JVC SR-L901U time lapse playback problem
>
>
> > So you've swapped the Heads ???
> >
> > Peggs
> >
> > At 08:39 PM 2/23/04, greentron@xxxxxxx wrote:
> > >A couple of these vcrs did have worn out heads, which I could tell from
> > >playing a prerecorded tape in the 8 hr speed. When I then tested the unit
> > >in the 24 hr record/play mode is when I saw the problem.
> > > > sounds like bad heads.
> > > > Asti sells 'em for $45.00 cost.
> > > > Might buy 1 set to see..............
> > > >
> > > > Peggs
> > > >
> > > > At 09:42 AM 2/23/04, J Silverman wrote:
> > > > >Has a problem with the 24 hour playback. Supposed to record 10
> > > pictures per
> > > > >second and then play the same picture back 3 times to provide
> > > compatibility
> > > > >with the NTSC system. Only plays back 10 pictures per second causing
> > > snow on
> > > > >the monitor. Works fine on 8 hour record mode and the 24 hour
>recordings
> > > > >play back OK in the 8 hour mode. Appears as if something is wrong
>with the
> > > > >24 hour playback head select but all the service manual says about it
>is
> > > > >that the 24 hour playback head select is done with an "preset
>algorithm".
> > > > >Have 5 units here with the same problem.
> > > > >Jerry Silverman
> > > > >Greentron Inc
> > > > >4 Newland Ave
> > > > >Greenville SC 29609
> > > > >864 232 3889
> > > > >Fax 271 2080
> > > > >mailto:greentron@xxxxxxx
> > > > >
> > > > >
> > > > >
> > > >
> >-----------------------------------------------------------------------
> > > ------
> > > > >Lost Password:
> > > > >http://www.tech-assist.org  and select "Login Problems?".
> > > > >Email Archives:
> > > > >//www.freelists.org/archives/techassist/
> > > >
> > > >
> > > >
> >
> > --------------------------------------------------------------------------
>---
> > > > Lost Password:
> > > > http://www.tech-assist.org  and select "Login Problems?".
> > > > Email Archives:
> > > > //www.freelists.org/archives/techassist/
> >
> >
> > --------------------------------------------------------------------------
>---
> > Lost Password:
> > http://www.tech-assist.org  and select "Login Problems?".
> > Email Archives:
> > //www.freelists.org/archives/techassist/
>
>
>-----------------------------------------------------------------------------
>Lost Password:
>http://www.tech-assist.org  and select "Login Problems?".
>Email Archives:
>//www.freelists.org/archives/techassist/


-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org  and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/

Other related posts: