Форум за електроника

[cecostar]

Някой знае ли каква е тази грешка 6 пъти да мига светодиода.Нямам никаква документация за това.Мерих всичко по хоризонталното - за момент тръгва и след това остават 135 волта на колектора на транзистора на хоризонталното и започва да мига.Импулсното си работи.

[bobitv]

Мисля,че имаш проблем във ВО. Ако искаш мога да ти изпратя сервизна документация на това шаси.

[cecostar]

Ще ти бъда много благодарен.
Тук прочетох в една книга,ама за друг подобен на този модел,че от 2 до 9 пъти мигане,било повреда в някакъв NVM модул.Не знам какъв е този модул.

[bobitv]

Провери си пощата. Ако това не ти свърши работа, ще ти изпратя още информация.Успех!!!

[G_ANEV]

колега виж за студена спойка във вертикалното

[Electronicsinfo]

При мен излиза, че проблема е в ХО. Изпращам ти всички мигащи кодове, но са на английски за съжаление.

Sony Blinking Codes

Timer/Standby Indicator Blinking
By: Ron Purkhiser With Special Thanks To Dave Wreski


Many of the later model Sony TV's have a built in Self- Diagnosis function.
If the timer/standby indicator is blinking, this could be an indication of
the problem with the unit. The diagnostic blinking will occur automatically
with no action required by you to engage it.

The timing of the blinking you see would be as follows: two to eight blinks
(depending on the fault) about a third of a second apart, then pauses for 3
seconds, then the two to eight blinks about a third of a second apart again.

Here is a list of the problems that might have occurred indicated by the
number of blinks. The words in parentheses are those which you will see for
each of these faults on a diagnosis screen described later in this article.

Unit is dead and there are no blinks---Problem in the standby power section.

Continuous Blink Once A Second, No Pausing As Discussed Above---
No reply from the jungle (data bus is busy, shorted to ground or held high),
IK video path is defective.

ONE Blink--- not used for the self-diagnosis

TWO Blinks---B+ over current protection (OCP) , unit goes to the standby mode
then displays the 2 blink fault. Could be a short in the power supply of any
of the circuits.

THREE Blinks---B+ over voltage protection (OVP), unit goes to the standby mode
then displays the 3 blink fault. This is also a problem in the power supply
circuit.

FOUR Blinks---No Vert. Deflection (V STOP), Screen goes to a single horizontal
line then the video signal muted.

FIVE Blinks---AKB circuit (AKB), the timer/standby indicator blinks for about
30 seconds then goes to the self-diagnosis function. Something is wrong with
the video. Check video out. Also unit be in IK blanking, try turning up screen
slightly.

SIX Blinks---No Horizontal (H STOP), no raster, goes to the blinking
self-diagnosis function immediately.

SEVEN Blinks---High voltage shutdown. The high voltage has exceeded 33k and
the unit goes immediately into safety shutdown. Check power supply regulation
and horizontal circuits.

EIGHT Blinks---Problem with the audio (AUDIO), unit goes to standby and blinks
the self-diagnosis code.

Intermittent problems ?? This is a great feature. You can also bring up these
fault codes ON-SCREEN to see a list of the problem numbers with the abbreviation
of the problem and the number of times this problem has occurred. This is
slightly different than entering the service mode. To see the diagnostic
screen, Press the following buttons:
Display, Channel, 5, Vol Minus, ( Not plus ) then Power. This brings up a screen
with a list of the problems and number of times they have occurred. Each of the
problem names is abbreviated as, "OCP", "OVP", "V STOP", ETC. We have repeated
them in parentheses in the text for the "Blinks" described above so you can
correlate between the diagnostic screen and the blink codes.

So, now that you know about these self-diagnostics, how do you use them? Say
that you have a set with a black screen. You see that the LED is blinking
4 times....This would tell you that you have no vertical and that is why the
video is muted. If it was blinking 6 times, you would know that you have a
horizontal fault.

It's not a sure cure, but it's a little better than a poke in the eye with a
sharp stick.

IMPORTANT: after you repair the unit, PLEASE clear the values on this diagnostic
screen. These codes do not reset themselves after the fault is corrected, so if
you don't clear them, you'll be seeing "old" fault codes the next time you enter
this screen.

Clearing is done by going into the service mode ( display, channel, 5,
volume plus, then power ) then press 8 and Enter, which of course returns
everything to the factory preset condition.

[RC]

cecostar,

[cecostar]

Благодаря ти!
Ще ми свърши работа.Наистина,там пише че има проблем с веритикалното.
Това Сони си го взех за мене с този дефект,за смешна сума.
Казали са на клиента,че е за кинескоп,а то не е така.А информацията дето ми прати ще ми е много ценна.

[dasho]

Шасито с какви инт.схеми е.Веднага ли започва мигането или се
появава звук и картина и след това .

[тодо-р]

какво е шасито?ако FE1 имам сервизно описание.
_________________
Ако не можеш да го оправиш не го чупи повече!!!