EDAboard.com | EDAboard.eu | EDAboard.de | EDAboard.co.uk | RTV forum PL | NewsGroups PL

Panasonic NV-J22 video output to Archos 5

Ask a question - edaboard.com

elektroda.net NewsGroups Forum Index - Repair Electronics - Panasonic NV-J22 video output to Archos 5

Goto page Previous  1, 2

Michael A. Terrell
Guest

Tue Nov 29, 2011 11:36 am   



Jamie wrote:
Quote:

William Sommerwerck wrote:

One way to clean VCR heads is to wet a foam swab with solvent (such as the
99% isopropyl suggested), then roll it over the head gap, rather than
dragging it.


VCRs? What are those ? Smile


They are too complex for your small mind to comprehend, Maynard. Go
troll somewhere else.


--
You can't have a sense of humor, if you have no sense.

b
Guest

Thu Dec 01, 2011 4:39 am   



On Nov 29, 5:24 am, myfathersson <licensedtoqu...@gmail.com> wrote:

Quote:
Even with 70% alcohol, surely I should have seen at least some
improvement, even if not  really clean? But there is n o image
whatsoever. So little that the TV's input cant even recognise those
horizontal bands of noise as an image and it cuts to 'no input signal'
within a few seconds.

try leaving a known good/new 3 or 4 hour tape in the machine, running
in play.
Often, dirt can work itself out of the heads over time.
if still no good, maybe you can buy tape head cleaner fluid online -
even if it comes with one of those cassettes, you can dump the
cassette and just keep the fluid.
-B

myfathersson
Guest

Fri Dec 02, 2011 5:42 pm   



On Nov 30, 9:39 pm, b <reverend_rog...@yahoo.com> wrote:
Quote:
On Nov 29, 5:24 am, myfathersson <licensedtoqu...@gmail.com> wrote:

Even with 70% alcohol, surely I should have seen at least some
improvement, even if not  really clean? But there is n o image
whatsoever. So little that the TV's input cant even recognise those
horizontal bands of noise as an image and it cuts to 'no input signal'
within a few seconds.

try leaving a known good/new 3 or 4 hour tape in the machine, running
in play.
Often, dirt can work itself out of the heads over time.
if still no good, maybe you can buy tape head cleaner fluid online -
even if it comes with one of those cassettes, you can dump the
cassette and just keep the fluid.
-B

You are obviously some kind of genius: It has done something! I had
used this method before but only when a head gave a terrible picture
to get it to give a slightly better one for a short while. This time
running a 6 hour third-speed tape through it a few times has turned
the screen of noise lines into a picture (of sorts)!

Do I now assume that the heads are REALLY dirty and need the strongest
possible cleaner? I now BELIEVE that the heads are just covered in
encrudded dirt: If so, what is needed please? CCL4? Or has the tape
passing over it got rid of the crud and left only a normal film which
can be got off with a normal cleaner? The 70% alcohol with a careful q-
tip or definitely something stronger?

chuck
Guest

Mon Dec 05, 2011 4:21 pm   



On Fri, 2 Dec 2011 07:42:11 -0800 (PST), myfathersson
<licensedtoquill_at_gmail.com> wrote:

Quote:
On Nov 30, 9:39 pm, b <reverend_rog...@yahoo.com> wrote:
On Nov 29, 5:24 am, myfathersson <licensedtoqu...@gmail.com> wrote:

Even with 70% alcohol, surely I should have seen at least some
improvement, even if not  really clean? But there is n o image
whatsoever. So little that the TV's input cant even recognise those
horizontal bands of noise as an image and it cuts to 'no input signal'
within a few seconds.

try leaving a known good/new 3 or 4 hour tape in the machine, running
in play.
Often, dirt can work itself out of the heads over time.
if still no good, maybe you can buy tape head cleaner fluid online -
even if it comes with one of those cassettes, you can dump the
cassette and just keep the fluid.
-B

You are obviously some kind of genius: It has done something! I had
used this method before but only when a head gave a terrible picture
to get it to give a slightly better one for a short while. This time
running a 6 hour third-speed tape through it a few times has turned
the screen of noise lines into a picture (of sorts)!

Do I now assume that the heads are REALLY dirty and need the strongest
possible cleaner? I now BELIEVE that the heads are just covered in
encrudded dirt: If so, what is needed please? CCL4? Or has the tape
passing over it got rid of the crud and left only a normal film which
can be got off with a normal cleaner? The 70% alcohol with a careful q-
tip or definitely something stronger?


I would suggest obaining a new TDK tape and letting it play to the
end. For whatever reason, TDK tapes would do a better job of clearing
the heads than the other brands we tried. Chuck

b
Guest

Sat Dec 10, 2011 2:30 am   



On Dec 2, 4:42 pm, myfathersson <licensedtoqu...@gmail.com> wrote:

Quote:
You are obviously some kind of genius: It has done something! I had
used this method before but only when a head gave a terrible picture
to get it to give a slightly better one for a short while.  This time
running a 6 hour third-speed  tape through it a few times has turned
the screen of noise lines into a picture (of sorts)!

Do I now assume that the heads are REALLY dirty and need the strongest
possible cleaner? I now BELIEVE that the heads are  just covered in
encrudded dirt:   If so, what is needed please? CCL4? Or has the tape
passing over it got rid of the crud and left only a normal film which
can be got off with a normal cleaner? The 70% alcohol with a careful q-
tip  or definitely something stronger?

well, thanks for the praise! glad things seem to be moving forward
(pardon the pun).
I'd order some chamois sticks or a piece of chamois leather you can
cut down to size, and some decent isopropyl alcohol, and make a
professional job of it. Wait until you have the right tools before
going inside,and don't use Q tips as the fibres can snag the heads and
break the edges off - *not* something you want to happen!

Incidentally, there was one Panasonic case I had where it looked like
bad heads but turned out to be a bad capacitor in the power supply.
found it:

NVJ30(G-DECK) POOR PB PIC, STREAKS,C1122 IN PSU
also found that:
NVJ40 PB PIC BAD/ E2E PATTERNING C27(330UF10V) IN PSU
NVJ45 PB LIKE BAD HEADS 680UF/390UF IN PSU
NVL20 POOR PB PIC,ALL PSU ELECTROLYTICS

might be worth considering. Try leaving the machine plugged in and
powered up for a day or two, see if things improve. Often bad
capacitors work worse when cold.
-B

b
Guest

Sat Dec 10, 2011 2:53 am   



On Dec 2, 4:42 pm, myfathersson <licensedtoqu...@gmail.com> wrote:

Quote:
You are obviously some kind of genius: It has done something! I had
used this method before but only when a head gave a terrible picture
to get it to give a slightly better one for a short while.  This time
running a 6 hour third-speed  tape through it a few times has turned
the screen of noise lines into a picture (of sorts)!

Do I now assume that the heads are REALLY dirty and need the strongest
possible cleaner? I now BELIEVE that the heads are  just covered in
encrudded dirt:   If so, what is needed please? CCL4? Or has the tape
passing over it got rid of the crud and left only a normal film which
can be got off with a normal cleaner? The 70% alcohol with a careful q-
tip  or definitely something stronger?

well, thanks for the praise! glad things seem to be moving forward
(pardon the pun).
I'd order some chamois sticks or a piece of chamois leather you can
cut down to size, and some decent isopropyl alcohol, and make a
professional job of it. Wait until you have the
right tools before going inside,and don't use Q tips as the fibres can
snag the heads and
break the edges off - *not* something you want to happen!

Incidentally, there was one Panasonic case I had where it looked like
bad heads but turned
out to be a bad capacitor in the power supply. found it:

NVJ30(G-DECK) POOR PB PIC, STREAKS,C1122 IN PSU
also found that:
NVJ40 PB PIC BAD/ E2E PATTERNING C27(330UF10V) IN PSU
NVJ45 PB LIKE BAD HEADS 680UF/390UF IN PSU
NVL20 POOR PB PIC,ALL PSU ELECTROLYTICS

might be worth considering. Try leaving the machine plugged in and
powered up for a day or
two, see if things improve. Often bad capacitors work worse when cold.

-B

Goto page Previous  1, 2

elektroda.net NewsGroups Forum Index - Repair Electronics - Panasonic NV-J22 video output to Archos 5

Ask a question - edaboard.com

Arabic versionBulgarian versionCatalan versionCzech versionDanish versionGerman versionGreek versionEnglish versionSpanish versionFinnish versionFrench versionHindi versionCroatian versionIndonesian versionItalian versionHebrew versionJapanese versionKorean versionLithuanian versionLatvian versionDutch versionNorwegian versionPolish versionPortuguese versionRomanian versionRussian versionSlovak versionSlovenian versionSerbian versionSwedish versionTagalog versionUkrainian versionVietnamese versionChinese version
RTV map EDAboard.com map News map EDAboard.eu map EDAboard.de map EDAboard.co.uk map Opony