View Single Post
  #7   Report Post  
b
 
Posts: n/a
Default


Albert Grennock ha escrito:

"Jumpster Jiver" wrote in message
news:RVqWe.13549$c27.10548@trndny01...

I doubt I could damage the TV with the service menu anyway,
even if I wanted too (which is a thought).

So any help about accesing the service menu appreciated.



You certainly can. The settings in a servicce menu are not clearly
always indicated with words such as "vertical size" rather they are
often indicated by numbers or hex codes. If you change certain settings
such as horizontal frequency without realizing it you can cause the TV
to permanently shut down, or go into a mode where you can no longer see
the codes on the CRT and reset them to bring your picture back. Or you
may change tuner frequency settings causing the TV to not be able to
receive off-air channels anymore.
It is even possible to change certain frequencies so far out of normal
that you can cause high voltage components to actually burn out. All it
takes is a few button-presses on your remote control without the correct
information in your hands. Often the only repair in one of those
situations is to replace an EEPROM IC and any damaged components, then
reprogram the correct codes using a special computer interface.
You're much better off bringing the TV back where you got it, or
comparing the same channel on their display model. Your TV may be
misadjusted from the factory, or they may all be adjusted that way.
I've seen many new electronics and other items that came defective from
the factory with the strangest defects. Some of the oddest ones were
air conditioners that were completely empty of refrigerant when removed
from the box. On most units I found NO LEAKS. It seems as though they
somehow forgot to fill them at all at the factory! Great quality control.

Well obviously I would procede cautiously, if I didn't know what I was doing
I would not do it.
I can't imagine it would be that difficult otherwise it would be difficult
for
engineers/calibrators to work themselves.

Anyway if I did 'break it' I could just take it back as faulty, they could
hardly
prov I broke it no more than they could prove it was me who set the
horizontal size incorrectly because I diiidn't.
It;'s not particularly convienient for me to take it back to the shop at the
moment.


You seem determined to complicate matters. You clearly are not
experienced in this type of thing as you haven't even posted the
chassis and you don't appear to know who makes the set. So, on that
basis, the service menu is NO place for have-a-go hobbyists like
yourself without the tools and documentation to rectify any screw-ups
to hand. If you want to avoid further problems TAKE the advice already
given you in earlier posts and get the set back to the shop!
-B.