Push button, TV turns on hours later

[Peter B. Steiger]

Our TV is an old (~8 years) Samsung bargain basement set that has recently
started taking a long time to come to life after you push the power
button. At first it was several seconds; then after it had done this for
a few weeks the typical time was more like several minutes. Now if we
turn it off, we can push the ON button and come back several hours later
to find it just turning on.

What on earth could cause this, and is there anything we can clean /
repair / replace to fix it? No sense in blowing another $75 on a TV set
when the one we have is (otherwise) perfectly good, but it's not like the
good ol' days when I could go with my dad down to the drugstore and get a
new set of tubes.

--
Peter B. Steiger
Cheyenne, WY
If you must reply by email, you can reach me by placing zeroes
where you see stars: wypbs**1 at bornagain.com.

 

[Sofie]

Peter B. Steiger:
Were the "good ol' days" really that good? ?
You were replacing tubes every 6 months.
The tube circuits drifted and were prone to much more failure because of all
the heat and higher voltages.
You would have paid 5 to 10 times more money for the same size screen, but
the entire television was much bigger and a lot heavier....
.....and it probably was not COLOR and did not have CABLE tuning...
.....and did not have an IR Remote Control.
I agree that the new CHEAP sets are just that, cheap.... but in consumer
electronics, just like calculators and quartz watches..... you are getting
a lot more technology and better performance for much, much less.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
--------------------------------------


"Peter B. Steiger" <see.sig@for.email.address> wrote in message

good ol' days when I could go with my dad down to the drugstore and get a
new set of tubes.

 

[Jason D.]

On Sat, 9 Aug 2003 11:55:10 -0700, "Sofie" <sofie@olypen.com> wrote:

Peter B. Steiger:
Were the "good ol' days" really that good? ?
You were replacing tubes every 6 months.
The tube circuits drifted and were prone to much more failure because of all
the heat and higher voltages.
You would have paid 5 to 10 times more money for the same size screen, but
the entire television was much bigger and a lot heavier....
....and it probably was not COLOR and did not have CABLE tuning...
....and did not have an IR Remote Control.
I agree that the new CHEAP sets are just that, cheap.... but in consumer
electronics, just like calculators and quartz watches..... you are getting
a lot more technology and better performance for much, much less.

Samsung always used AKB circuits. This how annoying and we don't like
AKB because this cuts useful lifetime on an tv even CRT is still
acceptable. This blank pix w/ good audio is symptoms of weak CRT or
corrupt eeprom. One wrong setting was found and cranked it all way
down to correct settings, in the process blanked that pix, surprising
me and feeling scared but kept cranking that value down blindly. Pix
popped back on, whew! Found this out hard way on last set, before
that incident there was another set that had same problem and gave up
on it till recently.

Oh, your 1995 set is considered new generation for Samsung's and
doesn't looks too different from what you're seeing with typical
samsung chassis from 1996 to early 2002 era. Using philips ICs and
one zilog micro controller and a eeprom, most of those 25" and 27" has
RCA CRTs.

Cheers,

Wizard

--
Best Regards,
Daniel Sofie

 

[Mick G]

Your problem is probably in the switch mode power supply. Usually this is
caused by a high value resistor changing value (going near open circuit).
locate and replace any such resistors in the power section. Suspect any with
a value greater than 100k ohms. These cost next to nothing so dont waste
time finding out which one...swap them all.
Mick
"Peter B. Steiger" <see.sig@for.email.address> wrote in message
newsan.2003.08.09.15.45.27.749551@bresnan.net...

Our TV is an old (~8 years) Samsung bargain basement set that has recently
started taking a long time to come to life after you push the power
button. At first it was several seconds; then after it had done this for
a few weeks the typical time was more like several minutes. Now if we
turn it off, we can push the ON button and come back several hours later
to find it just turning on.

What on earth could cause this, and is there anything we can clean /
repair / replace to fix it? No sense in blowing another $75 on a TV set
when the one we have is (otherwise) perfectly good, but it's not like the
good ol' days when I could go with my dad down to the drugstore and get a
new set of tubes.

--
Peter B. Steiger
Cheyenne, WY
If you must reply by email, you can reach me by placing zeroes
where you see stars: wypbs**1 at bornagain.com.