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In this Article stand a number of standard solutions how you a
faulty monitor (Crt-gebaseerde, however, to understand, Cathode Ray
tubes) could get to the praat.
SERIOUS WARNING: Please note: on some
components in a monitor hoogspanning stands, also if the apparatus
stands. The monitor lets stand for this reason firstly 8 hours,
with the stekker from the stopper contact.1. General SERIOUS WARNING: Please note: on some
components in a monitor hoogspanning stands, also if the apparatus
stands. The monitor lets stand for this reason firstly 8 hours,
with the stekker from the stopper contact.
The monitor to unload Supplement of RuweBitter: As right-minded
MTS monitor repairing specialist I can say that I used in my monitor
repairing past always of ontladingspen (zelfvezonnen name). A
thin metal pen on handle with snoer. Snoer ties up you to the
ground and with metal the tenon you go vroeten under rubber the
suction cup which sits for your hoogspanningsaansluiting, until you
have contact with the pin.
If you do not have such tooltje you can do that therefore also
with for example ijzerdraadje (without sharp edges) (with goeie heat
insulation on the spot where you hold m.).
Bursting the monitor To repair a monitor you must, however, only elektronica
skills have. Donot can solder you, weet you not what
weerstandjes, Ic-tjes, trafo's, condensers or reels to be, beginning
then not. Small appeasing: I are electrotechnologist also
no.
Bursting a monitor is rather easy. He is frequently stuck
with but 4 propellers and there seldom opzit
warranty-void-if-broke-stikkertje. It is most cumbersome
frequently, when the propellers are already removed, find where the
housing still clicked zit.
The monitor is nevertheless already, therefore a beetje can
damage none angry .
Once open zul you see that the largest part of the housing is
filled with.... beeldbuis! ;) The lijntrafo put 220 volts wisselstroom for in the correct
quantities direct current. The hoogspanningstrafo provide the binnenkant with the beeldbuis for the
correct (high) tension. Exactly how a monitor works, then
http://www.howstuffworks.com want be possible you see.
Missing also once on Google Groups to the symptoms specifically for your mark and type of
monitor.
In the now following chapters by chapter a specific problem is
treated.
2. No picture Symptoms No picture, the powerledje do not contract, OSD (on screen
posting) do not do it, nothing.
Problem The cutout has broken down or to/switch the begegeven have
Solutions SERIOUS WARNING: Please note: on some
components in a monitor hoogspanning stands, also if the apparatus
stands. The monitor lets stand for this reason firstly 8 hours,
with the stekker from the stopper contact. Check
afterwards or there real no more tension on the hoogspanningskabel
stands. This can you do by with geisoleerde propeller turner
between the cable and the contact on the beeldbuis the crackling to
poke, todat has been stopped.
Good chance that 220V the cutout piece is. This zit
generally in the buurt of 220V connection. Measure the cutout
and replace him when necessary. If you have luck he has not been
soldered. Do not link the cutout by! Other house also no
uses - garden and kitchen solution (aluminium foil). The
cutout does not precede, as it happens, nothing piece, it by a tension
pick is able come (in that case the cutout your monitor will zojuist
have saved), but it will be possible also that something else failure
is there in your monitor, where the cutout has not looked that your
house zojuist has burned down.
In the event that 220V the switch piece is it will be possible
that it a mechanical problem is: the knopje sit crooked o.i.d.
as that does not work, try then put through or replace the switch.
I for a knowledge a Philips has this way repaired 105S
monitor. Honesty-half I must mention, however, that I have put
through the cutout (I had to no solder sense on him separately and in
the shop new to buy). The monitor sits however behind
schakelbare a connector. They have not yet burned
down .
3. Picture goes out to/or colours flicker Symptoms The picture goes to/from, or the colours flicker.
Sometimes just after a time, or it stops correctly sometimes
after tijdje.
Problem It can be that you to do have with bad
soldeerverbindingen. This seems on the first agency crazy,
especially if you monitor never dragged away and he stands himself for
years on same the spot. However, because some components become
very warm, it can be that there arisen after a year or 2
haarscheurtjes in solderverbindingen of the concerning components.
Some maintenance guides of monitors mention even the again '
aantippen ' of the soldeerverbindingen.
Solution SERIOUS WARNING: Please note: on some
components in a monitor hoogspanning stands, also if the apparatus
stands. The monitor lets stand for this reason firstly 8 hours,
with the stekker from the stopper contact. Check
afterwards or there real no more tension on the hoogspanningskabel
stands. This can you do by with geisoleerde propeller turner
between the cable and the contact on the beeldbuis the crackling to
poke, todat has been stopped.
Tip the solderverbindingen again with your soldeerbout.
Components which have of this typically charge are the
lijntrafo, the hoogspanningstrafo and torretjes which stand at these
trafo's in the buurt.
The haarscheurtjes are not see moreover almost.
I this way my own Philips has repaired 107S monitor.
I have the lijntrafo, the torretje in the buurt of those trafo,
Ic-tje that also in the buurt zat (I had read that with that also
sometimes problems were), the hoogspanningstrafo with the
daarbijbehorende torretjes and further still all kinds of other
componentjes where I the soldeerverbinding not trusted.
4. Adjusts picture/colour Symptoms The picture is vaporously (from focus) or at its not well
too large, too small or whatever. Also it can be that you
monitor uit-sync is (the picture runs for example vertical).
Problem It is possible that after course of time some potmetertjes
in your monitor must be adjusted.
Solution SERIOUS WARNING: Please note: on some
components in a monitor hoogspanning stands, also if the apparatus
stands. The monitor lets stand for this reason firstly 8 hours,
with the stekker from the stopper contact. Unfortunately it is at establishing the pot meters
necessary that the monitor is connected. Remain therefore from
the buurt of open contacts at the hoogspanningstrafo and the
hoogspanningskabel.
Nowadays sit almost all possible institutions in your OSD
hid, however for older monitors, or for example when you picture is
vaporous, manages it necessary be potmetertjes _ in _ your twist
monitor.
Do not go immediately to all pot meters turns, because before
you get yourself the weet you monitor not at all good!
For colour institutions you go in search of pot meters with the
characters r, g, b (save, green, blue).
For current pictures you go in search of pot meters with the
bijschrift SYNC (H-SYNC, V-SYNC, etc). Pay attention to that
For the picture size/form go you in search of pot meters with
bijschriften such as WIDTH, HEIGHT, TRAPEZOID and all kinds of other
terms which you encounter also in OSD etc.
For vaporous pictures, clarity and contrast you go in search of
the hoogspanningstrafo. There is find a number potmetertjes,
among which 1 for focus and 1 for the picture size.
Monitors who have equipped do not have with OSD have a lot of
pot meters, therefore you have been designated there on your OSD.
Please note: when you have charge of very predominating
colours (for example everything become sometimes purple) then have you
probably charge of a loose contact. See previous chapter.
This way I a time has screwed a monitor.
5. Hissing sound, static fragrance Symptoms The monitor makes a hissing sound and comes there a '
static fragrance ' from the monitor. I weet how I that fragrance
must define other one.
When you connect the monitor without housing and incite, you can
sparkle in a dark chamber to see between the hoogspanningskabel and
the beeldbuis. Not real favorable I think the life span of your
monitor. Also for your own life span, therefore do not
touch .
Problem The contact between the hoogspanningskabel and the
beeldbuiscoating is not optimum. Because of this the tension
zoekt another gone and to see you sparkling litterally of the cable to
the beeldbuis to jump.
Solutions SERIOUS WARNING: Please note: on some
components in a monitor hoogspanning stands, also if the apparatus
stands. The monitor lets stand for this reason firstly 8 hours,
with the stekker from the stopper contact. Check
afterwards or there real no more tension on the hoogspanningskabel
stands. This can you do by with geisoleerde propeller turner
between the cable and the contact on the beeldbuis the crackling to
poke, todat has been stopped.
Schuurpapiertje remove the cable of the beeldbuis and use to
scour the contact on the beeldbuis well white. With a file you
can come easily under the randje.
When this is not sufficient to isolate the cable extra, for
example with in the length rubber cut through can choose you
slangetje. You can fix that with kabelbindertjes. The
first solution has the preference!
On the above I old Commodore described manner monitor have
repaired.
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