Toshiba 32\" TV suddenly left with no audio or video...

[Anthk]

Hello there. I was just watching a TV show, when, suddenly, the TV
image turned itself off but audio was working fine. Some minutes after
that audio stopped to work too.

I tried to turn it on as I tought it could be related to
an auto-suspending issue and unplug the TV over the whole night
but I had no luck. Not even the TV menu it\'s displayed.

The TV it\'s a 32\" Toshiba one, sadly I can\'t grasp the model now,
but I\'ll try to find the manuals later.

Could it be related to an issue with capacitors?
Thanks in advance.

 

[Anthk]

On 2023-03-24, Anthk <anthk@disroot.org> wrote:

Hello there. I was just watching a TV show, when, suddenly, the TV
image turned itself off but audio was working fine. Some minutes after
that audio stopped to work too.

I tried to turn it on as I tought it could be related to
an auto-suspending issue and unplug the TV over the whole night
but I had no luck. Not even the TV menu it\'s displayed.

The TV it\'s a 32\" Toshiba one, sadly I can\'t grasp the model now,
but I\'ll try to find the manuals later.

Could it be related to an issue with capacitors?
Thanks in advance.

Well, the model was in the remote. Sorry, I was in a hurry.

It\'s CT-8035.

Thanks again.

 

[Charles Lucas]

On Friday, March 24, 2023 at 8:02:51 AM UTC-5, Anthk wrote:

On 2023-03-24, Anthk <an...@disroot.org> wrote:
Hello there. I was just watching a TV show, when, suddenly, the TV
image turned itself off but audio was working fine. Some minutes after
that audio stopped to work too.

I tried to turn it on as I tought it could be related to
an auto-suspending issue and unplug the TV over the whole night
but I had no luck. Not even the TV menu it\'s displayed.

The TV it\'s a 32\" Toshiba one, sadly I can\'t grasp the model now,
but I\'ll try to find the manuals later.

Could it be related to an issue with capacitors?
Thanks in advance.
Well, the model was in the remote. Sorry, I was in a hurry.

It\'s CT-8035.

Thanks again.

Just a thought. Is the TV earlier than 2008? What kind of TV is it? CRT type, LCD,
etc...

The government mandated after 2008 that all TV\'s made have to shut off if no
signal is going to the proper input within several seconds. In other words, if
no signal after a certain time, the set shuts down. The reason was due to the
energy star standards. They wanted to conserve electrical power and energy
as well as make certain these sets run more efficiently.

With the above stated in mind, always check for correct input and whether or
not it is an analog or digital mode (for audio and video). It could be some mode
it was inadvertently put into (even by accident). Then change it to the appropriate
input (RCA, HDMI, etc...)

Good luck, hope this helps.

Charles Lucas

 

[Anthk]

On 2023-03-24, Anthk <anthk@disroot.org> wrote:

Hello there. I was just watching a TV show, when, suddenly, the TV
image turned itself off but audio was working fine. Some minutes after
that audio stopped to work too.

I tried to turn it on as I tought it could be related to
an auto-suspending issue and unplug the TV over the whole night
but I had no luck. Not even the TV menu it\'s displayed.

The TV it\'s a 32\" Toshiba one, sadly I can\'t grasp the model now,
but I\'ll try to find the manuals later.

Could it be related to an issue with capacitors?
Thanks in advance.

It\'s LCD, and I am not an American, sorry. The fiber TV top-box set
works ok, I already tried it with a PC panel and it outputs the signal
perfectly, so the issue lies on the TV.

 

[Anthk]

On 2023-03-24, Charles Lucas <clsnowyowl@gmail.com> wrote:

On Friday, March 24, 2023 at 8:02:51 AM UTC-5, Anthk wrote:
On 2023-03-24, Anthk <an...@disroot.org> wrote:
Hello there. I was just watching a TV show, when, suddenly, the TV
image turned itself off but audio was working fine. Some minutes after
that audio stopped to work too.

I tried to turn it on as I tought it could be related to
an auto-suspending issue and unplug the TV over the whole night
but I had no luck. Not even the TV menu it\'s displayed.

The TV it\'s a 32\" Toshiba one, sadly I can\'t grasp the model now,
but I\'ll try to find the manuals later.

Could it be related to an issue with capacitors?
Thanks in advance.
Well, the model was in the remote. Sorry, I was in a hurry.

It\'s CT-8035.

Thanks again.

Just a thought. Is the TV earlier than 2008? What kind of TV is it? CRT type, LCD,
etc...

The government mandated after 2008 that all TV\'s made have to shut off if no
signal is going to the proper input within several seconds. In other words, if
no signal after a certain time, the set shuts down. The reason was due to the
energy star standards. They wanted to conserve electrical power and energy
as well as make certain these sets run more efficiently.

With the above stated in mind, always check for correct input and whether or
not it is an analog or digital mode (for audio and video). It could be some mode
it was inadvertently put into (even by accident). Then change it to the appropriate
input (RCA, HDMI, etc...)

Good luck, hope this helps.

Charles Lucas

It\'s LCD, and I am not an American, sorry. The fiber TV top-box set
works ok, I already tried it with a PC panel and it outputs the signal
perfectly, so the issue lies on the TV.

 

[Peter W.]

Well, the model was in the remote. Sorry, I was in a hurry.

It\'s CT-8035.

That is the remote model - not the TV model. But, let\'s assume that it is the associated-with-that-remote TV 32L3453DB. Do you know its age? Toshiba part numbers and season-numbers are not easy to follow.

a) Any funny smells of any nature?
b) Any previous bad-behavior?
c) Are you feeding from a cable box, or directly into the TV from a satellite, WiFi device, or other-than-cable? Have you verified that those connections are present and correct?

Superficially, it seems to be a power-supply issue, with cascading failures, first to the picture, then to the sound. If you can get access to the manual and/or the schematic, there may be internal fuses that have failed (usually for a reason), or some other relatively simple fix. Some \"smart\" TVs need an occasional software update - that would also be in the manual, as well as the means for a \'hard\' and \'soft\' reset.

32\" smart TVs are under US$100 these days, so failing a simple fix, it is unlikely to be worth the cost of a repair. Sadly.

Good luck with it.

 

[server]

On Fri, 24 Mar 2023 07:46:12 -0700 (PDT), Charles Lucas
<clsnowyowl@gmail.com> wrote:

Just a thought. Is the TV earlier than 2008? What kind of TV is it? CRT type, LCD,
etc...

The government mandated after 2008 that all TV\'s made have to shut off if no
signal is going to the proper input within several seconds.

One of my Samsung does that but the other one doesn\'t. Both are LCD
installed after 2008 but I don\'t know when they were made.

 

[Bob F]

On 3/24/2023 5:58 AM, Anthk wrote:

Hello there. I was just watching a TV show, when, suddenly, the TV
image turned itself off but audio was working fine. Some minutes after
that audio stopped to work too.

I tried to turn it on as I tought it could be related to
an auto-suspending issue and unplug the TV over the whole night
but I had no luck. Not even the TV menu it\'s displayed.

The TV it\'s a 32\" Toshiba one, sadly I can\'t grasp the model now,
but I\'ll try to find the manuals later.

Could it be related to an issue with capacitors?
Thanks in advance.

My first big flat screen TV was ans old Zenith 50\" plasma which was a
dead freebie. I opened it up, found a bunch of swollen capacitors,
Ordered, received, and replaced the bad capacitors, and it worked for
years until I gave it away, still working.

 

[Charles Lucas]

On Saturday, March 25, 2023 at 8:34:40 AM UTC-5, Bob F wrote:

On 3/24/2023 5:58 AM, Anthk wrote:
Hello there. I was just watching a TV show, when, suddenly, the TV
image turned itself off but audio was working fine. Some minutes after
that audio stopped to work too.

I tried to turn it on as I tought it could be related to
an auto-suspending issue and unplug the TV over the whole night
but I had no luck. Not even the TV menu it\'s displayed.

The TV it\'s a 32\" Toshiba one, sadly I can\'t grasp the model now,
but I\'ll try to find the manuals later.

Could it be related to an issue with capacitors?
Thanks in advance.
My first big flat screen TV was ans old Zenith 50\" plasma which was a
dead freebie. I opened it up, found a bunch of swollen capacitors,
Ordered, received, and replaced the bad capacitors, and it worked for
years until I gave it away, still working.

Before checking any other issue, verify the power cord is ok, and the
surge protector and outlet (electrically) is verified ok before proceeding
with further repairs. Especially check for bad electrical grounds. I usually
verify these things before cracking open the TV, because it is efficient
this way and saves time, in addition to ruling out some external cause
for creating an internal problem. Then think to the time of the failure of
the TV for a moment. Was there an unusual situation when it failed? Was
there a storm? Was there a brown out or black out? Anything else unusual?
Again, ruling out external causes relating to the internal problem you suspect
is on the TV.

If it is indeed a problem with the TV internally, then I would check with the
usual suspects, based upon the common failures or problems associated
with that model. Someone mentioned swollen capacitors, there\'s also power
supply issues, regulated B +, Invertor board issues, resistors, diodes, and
a plethora of the usual suspects in terms of other electronics components,
not to mention checking for bad solder joints, bad connections, etc...

There is a lot of time spent tracing problems out. Based upon the model,
I would hone in on the usual suspected causes of failure, then look for
the isolated cases to determine cause and efficiently provide for a more
pinpointed, accurate diagnosis. Consult the service manual and other
professionals for assistance. Use your tools and equipment effectively
and wisely to help provide for a solution to the problem.

Good luck.


Charles Lucas

 

[Bob F]

On 3/25/2023 7:20 AM, Charles Lucas wrote:

On Saturday, March 25, 2023 at 8:34:40 AM UTC-5, Bob F wrote:
On 3/24/2023 5:58 AM, Anthk wrote:
Hello there. I was just watching a TV show, when, suddenly, the TV
image turned itself off but audio was working fine. Some minutes after
that audio stopped to work too.

I tried to turn it on as I tought it could be related to
an auto-suspending issue and unplug the TV over the whole night
but I had no luck. Not even the TV menu it\'s displayed.

The TV it\'s a 32\" Toshiba one, sadly I can\'t grasp the model now,
but I\'ll try to find the manuals later.

Could it be related to an issue with capacitors?
Thanks in advance.
My first big flat screen TV was ans old Zenith 50\" plasma which was a
dead freebie. I opened it up, found a bunch of swollen capacitors,
Ordered, received, and replaced the bad capacitors, and it worked for
years until I gave it away, still working.

Before checking any other issue, verify the power cord is ok, and the
surge protector and outlet (electrically) is verified ok before proceeding
with further repairs. Especially check for bad electrical grounds. I usually
verify these things before cracking open the TV, because it is efficient
this way and saves time, in addition to ruling out some external cause
for creating an internal problem. Then think to the time of the failure of
the TV for a moment. Was there an unusual situation when it failed? Was
there a storm? Was there a brown out or black out? Anything else unusual?
Again, ruling out external causes relating to the internal problem you suspect
is on the TV.

If it is indeed a problem with the TV internally, then I would check with the
usual suspects, based upon the common failures or problems associated
with that model. Someone mentioned swollen capacitors, there\'s also power
supply issues, regulated B +, Invertor board issues, resistors, diodes, and
a plethora of the usual suspects in terms of other electronics components,
not to mention checking for bad solder joints, bad connections, etc...

There is a lot of time spent tracing problems out. Based upon the model,
I would hone in on the usual suspected causes of failure, then look for
the isolated cases to determine cause and efficiently provide for a more
pinpointed, accurate diagnosis. Consult the service manual and other
professionals for assistance. Use your tools and equipment effectively
and wisely to help provide for a solution to the problem.

Another solution could be to watch places like freecycle and the free
section of craigslist for another TV. I see them frequently. Or you
could buy a used one from Craigslist or other such places. I got my
current 55\" LG 4K TV with a small amount of light screen burn for $75.
Previously, I picked up a 40\" 1080P LCD TV on freecycle for free. I
gave away my older plasma 50\" TV on freecycle.

 

[Charles Lucas]

Another solution could be to watch places like freecycle and the free
section of craigslist for another TV. I see them frequently. Or you
could buy a used one from Craigslist or other such places. I got my
current 55\" LG 4K TV with a small amount of light screen burn for $75.
Previously, I picked up a 40\" 1080P LCD TV on freecycle for free. I
gave away my older plasma 50\" TV on freecycle.

That\'s the mentality of the typical consumer... just throw it away and
buy a new one. I am trying to save the piece from a junkpile,
trash heap, or landfill- not add to it! I would rather fix it- best thing
for the environment, you getting an education- and in the long run,
your finances (money) too.

Good Luck

Charles Lucas

 

[Bob F]

On 3/27/2023 8:20 AM, Charles Lucas wrote:

Another solution could be to watch places like freecycle and the free
section of craigslist for another TV. I see them frequently. Or you
could buy a used one from Craigslist or other such places. I got my
current 55\" LG 4K TV with a small amount of light screen burn for $75.
Previously, I picked up a 40\" 1080P LCD TV on freecycle for free. I
gave away my older plasma 50\" TV on freecycle.

That\'s the mentality of the typical consumer... just throw it away and
buy a new one. I am trying to save the piece from a junkpile,
trash heap, or landfill- not add to it! I would rather fix it- best thing
for the environment, you getting an education- and in the long run,
your finances (money) too.

Good Luck

Charles Lucas

Who said to buy a new one? Certainly not me.