Re: TECH: Battlezone G05-805 monitor question

Hi again all,

As for Doug's reply below, I did check some of the voltages and seems that
everything seemed a few volts low. For example, if there was supposed to be
30 V at a certain point, there was about 28 V. I believe that this 2 volt
low condition was also measured at the input voltage to the monitor at the
harness connector. Could these few volts make the difference? (Sorry I don't
have exact voltages, but I will get back out there and take some exact
measurements later). I can't measure the HV directly yet, but I have a HV
probe on the way and that should clear things up a bit.

Until that time, if anyone has any comments on checking/tracing/interpreting
the voltages on the monitor, that might help me out in the long run.

Thanks for all the help!
-Commander Dave

PS. A side note... found out a few days ago that I will be adding another
classic game collector to the family! This will be the fourth and last
installment, as I have a son, 10, a daughter, 9 and another son who will be
11 months very soon. To be honest, I would have been satisfied with the
first two, but the they got to old to fetch the remote for me, so I ordered
a new set! :-D

----- Original Message -----
From: "Douglas Gauck" <0k64dgau@gte.net>
To: <vectorlist@synthcom.com>
Sent: Sunday, September 22, 2002 23:48 PM
Subject: Re: VECTOR: TECH: Battlezone G05-805 monitor question

> Hi Dave (and others),
>
> What about the low-voltage section? B+ will vary as does the LV. I'd check
> all the resistors and any caps that weren't in the kit (902/3/6/7) and
> transistors. The good news is there aren't too too many. And since there
are
> only 3 diodes check them too, eh? Good luck.
>
> -Douglas
>
>
> on 9/22/02 8:41 PM, Commander Dave at cmdr-dave@spamcop.net wrote:
>
> > Hi all,
> >
> > Got the cap kit with the transistors, installed, and there wasn't any
> > change. Sigh....
> > I got the freeze spray back out and if I spray the D904 HV diode a good
bit,
> > it does shrink the pictures very slightly, but not in frame completely.
> >
> > My guess is that I blew the new HV diode before I knew not to discharge
the
> > monitor without resistors (10 x 100K Ohm), so now I am going to replace
the
> > diode again and see what I get. Before I do, I need to get a sanity
check:
> >
> > 1: When installing the HV diode (H1809/H1812), there is a stripe on one
end.
> > Does that stripe go toward the transformer or toward the cap that goes
in
> > the tube? On the schematics it has a + side marked toward the tube. I
think
> > I know, but just want to hear it from one of you guys. I don't feel like
> > blowing another one up.
> >
> > 2. I am still looking for verification that swapping an H1812 for a
H1809
> > will work at all. If not, that might explain why things aren't working
out.
> >
> > 3. If anyone has psychic powers, can you tell me where I put my last two
> > H1812 diodes??? <grins>
> >
> > Thanks,
> > -Commander Dave
> >
> > ----- Original Message -----
> > From: "Commander Dave" <cmdr-dave@spamcop.net>
> > To: <vectorlist@synthcom.com>
> > Sent: Thursday, September 12, 2002 15:53 PM
> > Subject: VECTOR: Battlezone G05-805 monitor blooming problem revisited
> >
> >
> >> Greetings all,
> >>
> >> I have a Battlezone mini monitor (Electrohome G05-805 15" B&W) that
still
> >> has a "blooming" problem. It's not the board set as it has done this
with
> > 3
> >> different boards.
> >>
> >> I have replaced the HV diode (VARO H1809 with a VARO H1812 - I couldn't
> > find
> >> a H1809), but it still happens after warmup. It seems to expand in all
> >> directions, but horizontal seem a little more than the vertical.
> >
> >
> > <<<<<snip>>>>>
> >
> >> Regards,
> >> -Commander Dave
> >
> >
>
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Received on Tue Sep 24 17:26:55 2002