Mark Zacharias
Guest
Wed Nov 30, 2011 1:53 pm
"Arfa Daily" <arfa.daily_at_ntlworld.com> wrote in message
news:9igBq.183758$cr3.183070_at_newsfe03.ams2...
Quote:
"N_Cook" <diverse_at_tcp.co.uk> wrote in message
news:jar5q3$cpj$1_at_dont-email.me...
andrewsave_at_hotmail.com> wrote in message
news:7nZzq.3148$NZ7.1600_at_newsfe02.iad...
Hi,
I have a Nakamichi CD Player 3, circa 1992, that is a terrific player,
but
requires to be warmed up for about 1.5 hours before it is able to read
the
disc; After this point, then it works fine.
I am not sure why the warm up needed, but it is drag when you have to
build
in this lead-time into your CD listening.
Any thoughts as to why this is happening and steps to remedy will be
most
appreciated..
Thanks
I would assume the focus voltage is drifting a bit and out of capture
range
until warmed up. Find the power pot (preset) measure R both ways and mark
with pen and adjust lower first one way and try and then the other no
more
than 5 percent and see if it makes a difference
Or don't, unless you are thoroughly experienced in carrying out such
adjustments ... :-\
Arfa
In my experience fooling around with the adjustments rarely actually fixes a
malfunction, they merely mask or compensate for what is actually wrong. For
example, increasing the tracking gain might (temporarily) seem to fix a
skipping problem, when the actual problem is bad lubrication on the laser
mechanical path (rails, etc as Arfa mentioned). Diddling with the adjustment
pots is best reserved for after parts replacement or other service, and
should be done by a knowledgeable hand, preferably with service literature
available.
Mark Z.
Franc Zabkar
Guest
Thu Dec 01, 2011 1:15 am
On Mon, 28 Nov 2011 05:41:17 -0600, "Mark Zacharias"
<mark_zacharias_at_labolgcbs.net> put finger to keyboard and composed:
Quote:
"William Sommerwerck" <grizzledgeezer_at_comcast.net> wrote in message
news:jat5ub$d48$1_at_dont-email.me...
I've seen the main power supply filter cap open up on these.
And I've seen "bad" caps >temporarily< get better after a period of time.
Sounds like a good place to start checking. And PS caps are generally easy
to replace.
I should have mentioned that the aforementioned filter cap can result in
symptoms similar to those reported by the OP.
FWIW, I had the same problem in an old Tevion DVD player (Aldi
supermarket brand).
- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
Phil Allison
Guest
Thu Dec 01, 2011 1:27 pm
"Arfa Daily"
Quote:
Actually, Phil is quite right.
** Of course he is.
Quote:
I see sticky lubricant all the time on CD player laser rails, swinging-arm
idlers on cassette decks, bits of autochange mechanism on phono decks ...
** The Naka in question is 20 fucking years old - FFS !!
If the lubricant is NOT sticky by now, it would be a miracle. This kind of
trouble, or any other fault that creates a repeatable 90 minute delay prior
to use, is NOT one an owner can fix himself.
That Somerwanker STEAMING GREAT NUT CASE is a 100% public menace who
should have a price on his head - wanted dead or alive.
.... Phil
