sci.electronics.repair@googlegroups.com

Today's topics:

* HP Deskjet 990Cxi prints `in white!' - 6 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/e9b76061bef0d6b2?hl=en
* RCA VCR VR651HF Loading Motor Source - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/bb7ed9b3e718935b?hl=en
* Battery charger part - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/c8a9fedf5d5210b0?hl=en
* HP 214B Pulse Generator repair question - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/c99ffb38a259a6ba?hl=en
* LORAN C - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/73c2d1e0342e191b?hl=en
* Crate BV150H amp , safety issue - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/3d15cc0bcb8c88cd?hl=en
* Simple Hack To Get $5000 To Your *PayPal Account - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/27ef5034b74ecaec?hl=en

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TOPIC: HP Deskjet 990Cxi prints `in white!'
http://groups.google.com/group/sci.electronics.repair/t/e9b76061bef0d6b2?hl=en
==============================================================================

== 1 of 6 ==
Date: Fri, Sep 10 2010 11:08 am
From: Merciadri Luca

On Sep 10, 8:02 pm, zekfr...@zekfrivolous.com (GregS) wrote:
> In article <5c39926b-b22a-4469-988a-490297c12...@q18g2000vbm.googlegroups.com>, Merciadri Luca <merciadril...@gmail.com> wrote:
>
>
>
> >Hi,
>
> >I've got an old Hp Deskjet 990Cxi which suddenly decided to print
> >nothing. When I send a document to the printer, it behaves as before
> >(paper is taken, cartridges move, etc.), but the resulting page is
> >still as white as it was before printing.
>
> >The problem does not come from the computer, because I tried several
> >things. Among them,
> >* Printing test: holding the resume button for more than 4 secs. makes
> >it print, but the page is still white;
> >* Technical test: having the power button hold, and then pressing 4
> >times the resume button. A page seems to be printed (same behaviour),
> >but, just as before, nothing is printed, despite cartridges'
> >movements, etc.
>
> >Any idea? I need to make it work.
>
> >Thanks.
>
> Get black paper.

Please, no fun here.

== 2 of 6 ==
Date: Fri, Sep 10 2010 11:23 am
From: JeffM

Merciadri Luca wrote:
>the resulting page is still as white as it was before printing.
>
Next time you post a question to more than ONE group,
put the names of ALL the groupson the TO: line
(separated by commas).

That way, everyone who reads the question can see ALL the responses.
This is called CROSS-posting.
The way you have done this is selfish and inefficient.

== 3 of 6 ==
Date: Fri, Sep 10 2010 12:17 pm
From: Merciadri Luca

On Sep 10, 8:23 pm, JeffM <jef...@email.com> wrote:
> Merciadri Luca wrote:
> >the resulting page is still as white as it was before printing.
>
> Next time you post a question to more than ONE group,
> put the names of ALL the groupson the TO: line
> (separated by commas).
>
> That way, everyone who reads the question can see ALL the responses.
> This is called CROSS-posting.
> The way you have done this is selfish and inefficient.

Okay, but that does not answer to my original question. Please answer
to it if you have any solution. I'll know it for the other messages.

== 4 of 6 ==
Date: Fri, Sep 10 2010 12:53 pm
From: JeffM

>JeffM wrote:
>>The way you have [posted] this is selfish and inefficient.
>>
Merciadri Luca wrote:
>Okay, but that does not answer to my original question.
>
How can you tell if I have answer your question
if you are only looking at THIS group,
while you have posted it to MULTIPLE groups?

>Please answer to it if you have any solution.
>
Go look at ALL the places you have splattered your question,
STUPID.

== 5 of 6 ==
Date: Fri, Sep 10 2010 1:21 pm
From: "Michael A. Terrell"

Merciadri Luca wrote:
>
> On Sep 10, 8:23 pm, JeffM <jef...@email.com> wrote:
> > Merciadri Luca wrote:
> > >the resulting page is still as white as it was before printing.
> >
> > Next time you post a question to more than ONE group,
> > put the names of ALL the groupson the TO: line
> > (separated by commas).
> >
> > That way, everyone who reads the question can see ALL the responses.
> > This is called CROSS-posting.
> > The way you have done this is selfish and inefficient.
>
> Okay, but that does not answer to my original question. Please answer
> to it if you have any solution. I'll know it for the other messages.

comp.periphs.printers is where you should be asking.

--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

== 6 of 6 ==
Date: Fri, Sep 10 2010 8:04 pm
From: "hr(bob) hofmann@att.net"

On Sep 10, 12:28 pm, Merciadri Luca <merciadril...@gmail.com> wrote:
> On Sep 10, 7:12 pm, Madness <policed...@thedonutshop.com> wrote:> On 9/10/2010 1:07 PM, Merciadri Luca wrote:
>
> > > Any idea? I need to make it work.
>
> > > Thanks.
>
> > Maybe you need new cartridges?
>
> Sorry, I should have mentioned that they are brand new (and genuine),
> and I tested with two lots.

Have you removed the cover on the print heads? Have you pushed the
print head against a paper towel and had ink actually come out of the
print heasd???

==============================================================================
TOPIC: RCA VCR VR651HF Loading Motor Source
http://groups.google.com/group/sci.electronics.repair/t/bb7ed9b3e718935b?hl=en
==============================================================================

== 1 of 1 ==
Date: Fri, Sep 10 2010 12:37 pm
From: Cydrome Leader

jaugustine@verizon.net wrote:
> Hi,
>
> RCA VCR model VR651HF
>
> I am looking for a source to order a loading motor (front loader).
> My RCA parts sources told me this motor is "no longer available".
> Note: I don't have SM, therefore I don't have the RCA part number.
>
> I found one site on the web that claims to have it, but there is
> a $300.00 minimum order.
>
> Here are numbers on the motor:
>
> MDH2B
> 62YK1418A
>
> Thank You in Advance, John
>
> PS, Remove "ine" from my email address
>

Maybe you can figure out what company actually made this VCR and find
parts from them.

==============================================================================
TOPIC: Battery charger part
http://groups.google.com/group/sci.electronics.repair/t/c8a9fedf5d5210b0?hl=en
==============================================================================

== 1 of 1 ==
Date: Fri, Sep 10 2010 4:51 pm
From: PeterD

On Fri, 10 Sep 2010 10:33:01 -0400, LSMFT <boleyn7@aol.com> wrote:

>Jeffrey Angus wrote:
>> On 9/10/2010 9:20 AM, LSMFT wrote:
>>> So I should be able to replace the 'plate' with a solid state
>>> full wave bridge rectifier?
>>
>> You have solid state full wave rectifier. A bridge will give
>> you twice the output voltage.
>
>Are you sure?

Yes, he's sure. So are most of the rest of us. Two diodes in a full
wave rectifier.

>
>>
>>> What causes the tapering down effect as the battery charges?
>>
>> The output voltage of the charger is fixed, as the battery
>> voltage comes us (charges) the current goes down.
>>
>> Jeff
>>

==============================================================================
TOPIC: HP 214B Pulse Generator repair question
http://groups.google.com/group/sci.electronics.repair/t/c99ffb38a259a6ba?hl=en
==============================================================================

== 1 of 1 ==
Date: Fri, Sep 10 2010 5:30 pm
From: Jim Yanik

Richard Rasker <spamtrap@linetec.nl> wrote in
news:4c8a502b$0$733$7ade8c0d@textreader.nntp.internl.net:

> Bob Pownall wrote:
>
>> OK, I got some responses but I'm not sure how useful they are.
>>
>>
> http://cgi.ebay.com/HP-214B-Operating-Service-Manual-COMPLETE-/37016210
> 1455?pt=BI_Books_Manuals&hash=item562f616ccf
>> (or http://tinyurl.com/3xp4sa8)
>> is an eBay listing for the HP 214B Operating and Service Manual. It
>> claims to be 147 pages, and thus more complete than the 123 page
>> manual available for download from the Agilent website
>
> OK, thanks, I think I'll give this one a go. The equipment is
> definitely worth it, and besides, half an hour of my time is rather
> more expensive than this.
>
> Richard Rasker

don't forget you can ASK QUESTIONS of the seller on the eBay site,-before-
making a bid or buy.

--
Jim Yanik
jyanik
at
localnet
dot com

==============================================================================
TOPIC: LORAN C
http://groups.google.com/group/sci.electronics.repair/t/73c2d1e0342e191b?hl=en
==============================================================================

== 1 of 1 ==
Date: Fri, Sep 10 2010 7:48 pm
From: Jeff Liebermann

On Thu, 9 Sep 2010 06:32:06 -0700 (PDT), Andy <andysharpe@juno.com>
wrote:

>On Sep 1, 6:36 am, Meat Plow <mhyw...@yahoo.com> wrote:
>
>>
>> I'm sure aviation and military GPS units are as robust as loran. Consumer
>> units might be helped by a better antenna.
>>
>
>Andy comments:
>
> The only way the antenna can be "better" is to have more gain.

Ummm....
1. Better match (VSWR)
2. Better front to back ratio
3. Fewer side lobes
4. Better looking pattern.
5. Smaller, cheaper, lighter, easier to build, etc.
6. Grounded design to avoid static electricity buildup.
Gain is not the only thing that's important in antennas.

>That
>requires the antenna to be more directional.

True. Antennas only redirect RF. The don't create any. If you need
more signal in one direction, you have to steal it from another
direction.

> Such is not a good idea
>'in GPS since one needs a hemispherical pattern, to account for
>where all the satellites are.

Not really. I've built a perfectly functional GPS antenna that has a
pattern similar to a donut (torus) elevated off the ground with no
gain directly overhead. For location purposes, overhead satellites
are nearly useless because there's no doppler shift.

> It's true that some GPS units have a poor antenna, but that's a
>matter
>of cosmetics more than anything else.

Ahem... There are two basic types of GPS antennas. Patch antennas
and quadrifilar (QFA) antennas. Both have roughly a hemispherical
pattern. The QFA antenna is "better" for some applications because
the radiation angle extends closer to the horizon and below than does
the patch antenna. There's no benefit for 2D positioning, but the
lower radiation angle offers better altitude information. A patch
antenna becomes less circular polarized and more towards elliptical
polarization hear the horizon. Well, at the horizon, it's
horizontally polarized which is good for a -3dB gain loss. QFA
antenna remains fairly RHCP at the horizon.

If you look inside some of the higher end handheld and vehicle mounted
GPS antennas, you'll find a QFA antenna. Garmin GPS 76
<http://i36.photobucket.com/albums/e8/KiwiGPS/Inside%2076CS/76CSInsideViews1Large.jpg>
Kinda looks like it was designed to fit either a patch and QFA.

>Many military units are
>handheld
>and therefore have the same problem. Any unit with a remotely
>mounted antenna will perform about the same as any other unit,
>whether military or commercial, since they are all designed to
>have a hemispherical pattern.

Agreed. The differences are small but if you're trying to squeeze the
last bit of performance out of a handheld, it can be important.

> Just feel like talking....
>
> Andy in Eureka, Texas

--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558
# http://802.11junk.com jeffl@cruzio.com
# http://www.LearnByDestroying.com AE6KS

==============================================================================
TOPIC: Crate BV150H amp , safety issue
http://groups.google.com/group/sci.electronics.repair/t/3d15cc0bcb8c88cd?hl=en
==============================================================================

== 1 of 1 ==
Date: Fri, Sep 10 2010 8:10 pm
From: "hr(bob) hofmann@att.net"

On Sep 10, 10:27 am, "N_Cook" <dive...@tcp.co.uk> wrote:
> Second one I've come across where the standby lamp thinks it is a lighthouse
> ( for a short while). When cooled down the neon's now black internal dropper
> , 1/3W or so, measured 550R . The switch housing says "110V lamp", surely
> I'm not the only one to have come across this arson issue. I don't have the
> schematic for the 150 , the BV120 schematic has the neon on the HT ac side,
> not the rectified and smoothed side. I've not taken the amp apart to explore
> wiring but have not found a dropper additional to the internal neon set for
> USA 110V mains wiring purposes. What is the work around , separate neon ala
> Marshall valve amps etc.
>
> While at it, I suspect (not examined yet but suspiciously bright) that the
> mains-on neon is also set for 110V like the other BV150H .  I'm in 240V land
> and that will need accommodating as well. This one 2003 manufacture and
> without attention, that dropper will  go pyrotechnic in ten more years of
> use also

What does the coffee maker?? "sticker" say, for 120 V or 240V
operation?

==============================================================================
TOPIC: Simple Hack To Get $5000 To Your *PayPal Account
http://groups.google.com/group/sci.electronics.repair/t/27ef5034b74ecaec?hl=en
==============================================================================

== 1 of 1 ==
Date: Sat, Sep 11 2010 12:08 am
From: sukanya

Simple Hack To Get $5000 To Your *PayPal Account At http://getinstantmoney.tk

i have hidden the PAYPAL FORM link in an image.
in that website on Right Side below search
box, click on image and enter your name and PAYPAL ID.

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