Hello,
A while ago I was able to get into the service mode on my Panasonic
34wx50 and change all the settings I wanted. But now, I can get into
the made, change the size and position of the picture, but am unable
to change any of the colour, brightness or contrast settings.

Any ideas what could be causing this? I had an engineer come out and
look at the TV after I had done my initial tweaking through the
service menu. He seemed a little suprised that I had been messing
around with it (even though he made next to no changes to my
settings), but I'm wondering if there's something he could have done
so that I couldn't change the values - some kind of lock-up? Any help
is appreciated.

Actually I am suprised the Tech would even attempt
to make adjustments after you had messed with it.
Its very obvious that you dont have a clue as to what
you are doing hence you made adjustments then call
the Tech in then suggest HE did something to the menu,s.
Myself I have run into 2 sets where the customer had
messed with the Service Menu,s ,my response was
Have A Nice Life ..........Bye Bye.
Dont waste my time.

jmo
kip


"Limited Edition Clear Vinyl" wrote in
message om...
Hello,
A while ago I was able to get into the service mode on my Panasonic
34wx50 and change all the settings I wanted. But now, I can get into
the made, change the size and position of the picture, but am unable
to change any of the colour, brightness or contrast settings.

Any ideas what could be causing this? I had an engineer come out and
look at the TV after I had done my initial tweaking through the
service menu. He seemed a little suprised that I had been messing
around with it (even though he made next to no changes to my
settings), but I'm wondering if there's something he could have done
so that I couldn't change the values - some kind of lock-up? Any help
is appreciated.

"john" wrote in message
.. .
Actually I am suprised the Tech would even attempt
to make adjustments after you had messed with it.
Its very obvious that you dont have a clue as to what
you are doing hence you made adjustments then call
the Tech in then suggest HE did something to the menu,s.
Myself I have run into 2 sets where the customer had
messed with the Service Menu,s ,my response was
Have A Nice Life ..........Bye Bye.
Dont waste my time.

jmo
kip

If the manufacturers made sets that were setup correctly in the first place,
no-one would need to adjust the 30%+ overscan & shagged geometry would they?

Hopefully, with an attitude like that in front of the customer (ok, they
shouldn't have messed, but the TV are always crap out the box) it wont be
long before one of them gives a you a good hiding. Remember, these people
keep you in a job ffs.

The most common parameters that need correction are H&V amplitude & picture
position. These SHOULD be on a sets user menu from the start. In fact all
the ones you can adjust on a PC monitor SHOULD be on a TV.

I do agree he should pay for the engineers time, but an attitude like yours
wouldn't go very far with me.

Nige

Ok !
Let me put it another way.
First why does a person want to get into
the Service Menu , the chances are the
TV has a fault which they think getting
into the Service Mode will cure .
There is nothing worse than trying to
rectify somebody elses messed up
Service Mode adjustments , that also
includes when they have ****ed around
with the convergence ALL of this whilst
chances are the TV has a fault.

kip
--
"Watch the return E-Mail addy its false"
"Nige, On a Mission From God............"
wrote in message ...

"john" wrote in message
.. .
Actually I am suprised the Tech would even attempt
to make adjustments after you had messed with it.
Its very obvious that you dont have a clue as to what
you are doing hence you made adjustments then call
the Tech in then suggest HE did something to the menu,s.
Myself I have run into 2 sets where the customer had
messed with the Service Menu,s ,my response was
Have A Nice Life ..........Bye Bye.
Dont waste my time.

jmo
kip

If the manufacturers made sets that were setup correctly in the first
place,
no-one would need to adjust the 30%+ overscan & shagged geometry would
they?

Hopefully, with an attitude like that in front of the customer (ok, they
shouldn't have messed, but the TV are always crap out the box) it wont be
long before one of them gives a you a good hiding. Remember, these people
keep you in a job ffs.

The most common parameters that need correction are H&V amplitude &
picture
position. These SHOULD be on a sets user menu from the start. In fact all
the ones you can adjust on a PC monitor SHOULD be on a TV.

I do agree he should pay for the engineers time, but an attitude like
yours
wouldn't go very far with me.

Nige

I wish that there were a way to "lock up" the settings so they couldn't be
tweaked by the do it yourself newbie.
Televisions are NOT like computer monitors with all of these parameters that
are fully adjustable by operator controls via front panel buttons.......
most of these settings on consumer televisions are limited in range and if
severely mis-adjusted, can cause all kinds of other problems..... this is
why there is a hard to access service menu..... for service techs.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
---------------------


"Limited Edition Clear Vinyl" wrote in
message om...
Hello,
A while ago I was able to get into the service mode on my Panasonic
34wx50 and change all the settings I wanted. But now, I can get into
the made, change the size and position of the picture, but am unable
to change any of the colour, brightness or contrast settings.

Any ideas what could be causing this? I had an engineer come out and
look at the TV after I had done my initial tweaking through the
service menu. He seemed a little suprised that I had been messing
around with it (even though he made next to no changes to my
settings), but I'm wondering if there's something he could have done
so that I couldn't change the values - some kind of lock-up? Any help
is appreciated.

If there is a fault, the effected circuits should be checked for faults and
corrected before going in the service mode. The factory settings are usually
set for the life of the set, and some are only changed at the time of
service, if any critical parts have been changed, where the set-ups are
effected (very rare). From the factory, these sets are set-up for an
accuracy that meets the standards set to meet industry standards, and
standards by the IEEE, SMPTE, FCC, and DOC, and etc, depending on where the
set is to be used.

Most likely you changed something that locked you, and anyone else out.
This is easy to do on some models of sets. Some models of sets have a
setting for the options and or model of set. Entering the wrong setting can
infact lock the uPC from functioning properly in the set-up mode. Since this
is not a user option, there are some settings where they can be set to
over-range, thus causing some serious fault conditions, and or even locking
the set-ups, or an operation of the set.

The fix in this case is to change the uPC, and or associated EPROM(s). Then
the complete factory set-up at the shop must be done to put the set back to
normal operation.

If this is the case, you are in for a very expensive repair.


--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"Limited Edition Clear Vinyl" wrote in
message om...
Hello,
A while ago I was able to get into the service mode on my Panasonic
34wx50 and change all the settings I wanted. But now, I can get into
the made, change the size and position of the picture, but am unable
to change any of the colour, brightness or contrast settings.

Any ideas what could be causing this? I had an engineer come out and
look at the TV after I had done my initial tweaking through the
service menu. He seemed a little suprised that I had been messing
around with it (even though he made next to no changes to my
settings), but I'm wondering if there's something he could have done
so that I couldn't change the values - some kind of lock-up? Any help
is appreciated.

john wrote:
Ok !
Let me put it another way.
First why does a person want to get into
the Service Menu , the chances are the
TV has a fault which they think getting
into the Service Mode will cure .
There is nothing worse than trying to
rectify somebody elses messed up
Service Mode adjustments , that also
includes when they have ****ed around
with the convergence ALL of this whilst
chances are the TV has a fault.

kip

I've had two Panasonic sets (OK 4, if you count the fact that I ended-up
sending three back because they couldn't be adjusted to my satisfaction)
and from what I can make out from the NGs, Panasonics are always badly
set up. My current Pannie is pants geometry-wise, but as it's a second
set I can't be arsed to do anything about it right now.

Service/engineering menus should always be avoided, but if the sets were
correctly set-up in the first place, Johnny Customer wouldn't feel the
need to try and tweak things, rather than wait an eternity for either an
engineer to come on-site or for the set to disappear to a dealer's for
weeks on end.

From what I recall, Panasonic service menus are multi-layered. The
first set of adjustments are for position, alignment etc. and are pretty
straight forward - I had no problem adjusting things as far as I could
go. I agree that messing with voltage settings and such like is to be
avoided, and any chump that plays with this sort of thing is asking for
trouble.

There's an easy fix though for Panaasonic TVs: (1), Panasonic should set
the bloody things up properly before foistering them on Joe Public and
(2) expose some of the hidden adjustments so that Joe Public can make
some alterations without doing any damage.


Clem

Gee I missed that part 30%+ overscan then you definetly have a faulty set.

kip


no-one would need to adjust the 30%+ overscan & shagged geometry would
they?

I do agree he should pay for the engineers time, but an attitude like
yours
wouldn't go very far with me.

Nige


I think all CRT TV's/RP's should have tilt adjustment, as each is
slightly out (and very difficult to correct) needs adjustment of the actual
CRT's. Very risky!!

No No ...The Yoke
Not the CRT.

kip
--
"Watch the return E-Mail addy its false"
"Nath" wrote in message
. ..
I do agree he should pay for the engineers time, but an attitude like
yours
wouldn't go very far with me.

Nige


I think all CRT TV's/RP's should have tilt adjustment, as each is
slightly out (and very difficult to correct) needs adjustment of the
actual
CRT's. Very risky!!

"john" wrote in message
.. .
No No ...The Yoke
Not the CRT.

kip

Do you know how to access the service menu on a Sharp 30 inch widescreen LCD
TV?

Nige

Almost all CRT's that I have seen in the last 12 years have
the yoke bonded(glued) to the tube. All of these had in-line guns.
The yokes are factory aligned for perfect registration, and have
passed final inspection. This could be one reason for the emergence
of OSD controls, allow the final touch up for the users eye.

"john" wrote in message
.. .
No No ...The Yoke
Not the CRT.

kip
--
"Watch the return E-Mail addy its false"
"Nath" wrote in message
. ..
I do agree he should pay for the engineers time, but an attitude
like
yours
wouldn't go very far with me.

Nige


I think all CRT TV's/RP's should have tilt adjustment, as each is
slightly out (and very difficult to correct) needs adjustment of
the
actual
CRT's. Very risky!!

Why ? Is the picture to clear for you.
Nice try Nige.

kip

--
"Watch the return E-Mail addy its false"
"Nige, On a Mission From God............"
wrote in message ...

"john" wrote in message
.. .
No No ...The Yoke
Not the CRT.

kip

Do you know how to access the service menu on a Sharp 30 inch widescreen
LCD
TV?

Nige

"john" wrote in message
.. .
No No ...The Yoke
Not the CRT.

kip

Fair enough- the yoke. Still risky procedure. I've done quite a bit to my
display (have to go into service level to do convergence) haven't killed the
set, although I have read of alot of people doing it (changing settings
without a slightest idea what it does, and haven't written down original
values etc)

I don't blindly adjust (I know VLIN and VPOS can kill my set) also in design
mode there's about 200-300 settings.

John,
Actually, the "Tech" said, "Obviously, you know what you're doing",
answered some of the questions I still had about the set, made no
adjustments whatsoever that improved upon what I had already done and
went on his way. I was just curious if there was a setting he may have
changed, since prior to his visit I could make changes, and since his
visit I haven't be able to. It's quite simple, really.


"john" wrote in message ...
Actually I am suprised the Tech would even attempt
to make adjustments after you had messed with it.
Its very obvious that you dont have a clue as to what
you are doing hence you made adjustments then call
the Tech in then suggest HE did something to the menu,s.
Myself I have run into 2 sets where the customer had
messed with the Service Menu,s ,my response was
Have A Nice Life ..........Bye Bye.
Dont waste my time.

jmo
kip


"Limited Edition Clear Vinyl" wrote in
message om...
Hello,
A while ago I was able to get into the service mode on my Panasonic
34wx50 and change all the settings I wanted. But now, I can get into
the made, change the size and position of the picture, but am unable
to change any of the colour, brightness or contrast settings.

Any ideas what could be causing this? I had an engineer come out and
look at the TV after I had done my initial tweaking through the
service menu. He seemed a little suprised that I had been messing
around with it (even though he made next to no changes to my
settings), but I'm wondering if there's something he could have done
so that I couldn't change the values - some kind of lock-up? Any help
is appreciated.

In article , john
wrote:
Gee I missed that part 30%+ overscan then you definetly have a faulty
set.

I also purchased a Panasonic TV about a year ago. It was also
'overscanning' so I had to use the 'service menu' to adjust the picture
size and position on-screen.

FWIW I do have some background in engineering, and also understood that if
I messed thing up it would be my own fault. :-)

However, I must admit I am puzzled by this issue:

Should we accept that sets tend to be delivered with noticable overscan? I
assume this is just to give a 'more impressive' (i.e. larger) image in the
shop, but I find it irritating not to be able to see the entire image. So
far as I can recall, every TV I've ever bought did this, and I ended up
adjusting them. In eary days this was with a trimmer tool and a mirror -
somewhat more of an adventure than using a service menu. :-)

If some settings combinations can do damage, then it is fair enough to hide
them *if the user has no requirement for adjusting them*. However if this
applies to something like dealing with overscan, and the makers overscan by
default, then maybe a different approach by the maker is better. For
example, allowing a *limited* range of adjustment on an owner menu, but
have the limits for this over-rideable on a service level. Given the
overscan I find strange not to have size adjustments easily accessible to
the user.

Slainte,

Jim

--
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Audio Misc http://www.st-and.demon.co.uk/AudioMisc/index.html
Armstrong Audio http://www.st-and.demon.co.uk/Audio/armstrong.html
Barbirolli Soc. http://www.st-and.demon.co.uk/JBSoc/JBSoc.html

"john" wrote in message
.. .
Why ? Is the picture to clear for you.
Nice try Nige.


I'm serious, the overscan is horrific, the dealers coming today & bet my
life he wont know how to change it.

Picture is fantastic, but the overscan is horrific. I have had 2 & they are
both similar.

Nige

Nige !
What I would do is give them back the TV its as simply as that.
What is the age of this set ?

kip


--
"Watch the return E-Mail addy its false"
"Nige, On a Mission From God............"
wrote in message ...

"john" wrote in message
.. .
Why ? Is the picture to clear for you.
Nice try Nige.


I'm serious, the overscan is horrific, the dealers coming today & bet my
life he wont know how to change it.

Picture is fantastic, but the overscan is horrific. I have had 2 & they
are
both similar.

Nige

Nath wrote:

"Nige, On a Mission From God............"
wrote in message ...

"john" wrote in message
...

Why ? Is the picture to clear for you.
Nice try Nige.


I'm serious, the overscan is horrific, the dealers coming today & bet my
life he wont know how to change it.

Picture is fantastic, but the overscan is horrific. I have had 2 & they

are

both similar.

Nige


How difficult will it be to get (exact) pixel perfect overscan? With CRT it
makes little difference, but the whole point of LCD/Plasma is to get the
source to the same size as the panel (ie for a Panasonic Plasma with native
NTSC resolution you'll want to zoom/squash H/V size exact to the borders.
Possibly use a ATI PC with custom montiro rez, with a dotty cross pattern to
get exact perfect, so no scaling is done if you've set it to far either way
of the correct setting.



You have to scale if the native res of the panel is higer than 576
pixels, as that's the resolution of TV/DVD etc in the UK.
If you didn't scale the video signal you'd end up with a small pic in
the centre of your new lcd tv (or worse stil top left).
It's the scaling that's causing Nige's issue because, clearly, his media
box is lopping off top and bottom of the input.

Bear in mind that *most* lcd TVs are natively 1280 x 1024 or 1280 x 768
or better.
--
Patrick

"I did the grabs via a Duomix61 grabber as used by 'security sources'"
"I never grabbed them on a PC mate -they went via IE56575 to a fancy
technical thingie grabber -or something" - un-named Video capture 'expert'

"john" wrote in message
.. .
Nige !
What I would do is give them back the TV its as simply as that.
What is the age of this set ?

kip

3 days old. It's the second one I have had too.

My RP is slightly overscanning horizontally- when I display the Avia screen
with a I----+----I test the two I's are just outside the screen- if I use
the user level horizontal position I can bring either one in, but obviously
it's off-centre. I tried adjusting WID and readjusting convergence- a little
bit too much work. I put it back after a bit, as I'm unsure of overall
widescreen shape (might be egg-shaped, I guess you need to set horizontal &
vertical to the same overscan setting- say 3% for both?) and re-do geometry
& convergence.

I guess a LCD & Plasma is alot easier, if you can do this within user level
would be cool, and maybe custom overscan modes for PAL & NTSC (being that
they have different resolution etc)

"Nath" wrote in message
...
My RP is slightly overscanning horizontally- when I display the Avia
screen
with a I----+----I test the two I's are just outside the screen- if I use
the user level horizontal position I can bring either one in, but
obviously
it's off-centre. I tried adjusting WID and readjusting convergence- a
little
bit too much work. I put it back after a bit, as I'm unsure of overall
widescreen shape (might be egg-shaped, I guess you need to set horizontal
&
vertical to the same overscan setting- say 3% for both?) and re-do
geometry
& convergence.

I guess a LCD & Plasma is alot easier, if you can do this within user
level
would be cool, and maybe custom overscan modes for PAL & NTSC (being that
they have different resolution etc)



You would think so, but the LCD I just bought is going back as overscan
cannot be resolved due to NO adjustments for horizontal & vertical
amplitude.

Looks like it's another plasma for me.

Nige

To answer this guy's question about the service menu not affecting
contrast brightness color etc They are only designed to change those
parameters in the SERVICE MODE ie the settings are not supposed to be
retained. Sub color sub brightness etc WILL be retained. And as far as
tilt is concerned especially on bigger screens(CRT's only) the tilt will
change depending on the orientation of the TV ie North South East and
Wset because of the Earth's magnetic field so a customer setting (tilt)
would be a good idea.

Dave

Nath wrote:
"john" wrote in message
.. .

No No ...The Yoke
Not the CRT.

kip


Fair enough- the yoke. Still risky procedure. I've done quite a bit to my
display (have to go into service level to do convergence) haven't killed the
set, although I have read of alot of people doing it (changing settings
without a slightest idea what it does, and haven't written down original
values etc)

I don't blindly adjust (I know VLIN and VPOS can kill my set) also in design
mode there's about 200-300 settings.

Width and Height adjustments should NOT be made using AVIA test patterns
they don't work(trust me I've been doing this since 1976) THE only way
to calibrate the tv is with proper test equipment. The problem is you
are playing those patterns thru your DVD player which WILL screw it up.
AND you are only setting NTSC modes NOT HD modes plus you need to be
able to set the DVD to progressive and interlace modes as they are diff
adjustments!

Dave



Nige, On a Mission From God............ wrote:
"Nath" wrote in message
...

My RP is slightly overscanning horizontally- when I display the Avia

screen

with a I----+----I test the two I's are just outside the screen- if I use
the user level horizontal position I can bring either one in, but

obviously

it's off-centre. I tried adjusting WID and readjusting convergence- a

little

bit too much work. I put it back after a bit, as I'm unsure of overall
widescreen shape (might be egg-shaped, I guess you need to set horizontal

&

vertical to the same overscan setting- say 3% for both?) and re-do

geometry

& convergence.

I guess a LCD & Plasma is alot easier, if you can do this within user

level

would be cool, and maybe custom overscan modes for PAL & NTSC (being that
they have different resolution etc)




You would think so, but the LCD I just bought is going back as overscan
cannot be resolved due to NO adjustments for horizontal & vertical
amplitude.

Looks like it's another plasma for me.

Nige

"David Heller" wrote in message
...
Width and Height adjustments should NOT be made using AVIA test patterns
they don't work(trust me I've been doing this since 1976) THE only way
to calibrate the tv is with proper test equipment. The problem is you
are playing those patterns thru your DVD player which WILL screw it up.
AND you are only setting NTSC modes NOT HD modes plus you need to be
able to set the DVD to progressive and interlace modes as they are diff
adjustments!

Dave

My CRT RP is not HD, nor is it progressive. Interlaced only. It's a pity
width & height adjustments effect geometry & convergence.. if it stayed
correct I could adjust both easily, and not have to correct geoimetry &
convergence afterwards.