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