Toshiba DVD player audio

J

James Sweet

Guest
So last night I took a look at a Toshiba DVD player, I forget the model but
I wanna say 1700 something, anyhow it worked fine then one day had no sound.
I played around, verified the audio settings are correct, and checked and
found that the digital output works just fine, it's just the analog RCA
jacks for stereo sound that are bad, no cracked solder joints, anyone ever
run into this? I know it's not worth spending a lot of time on, just bugs me
since it seems like it should be something simple.
 
Bad cap(s) associated with the audio op-amps. Common problem, I'm led to
believe. 100 uF @16 volts. Can't tell you which board they're on, but they
may be fairly obvious. They have a low resistance, so you can find them with
an ohmmeter. Upgrade to 25 volts minimum.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"James Sweet" <jamessweet@hotmail.com> wrote in message
news:rBCxb.244141$ao4.868338@attbi_s51...
So last night I took a look at a Toshiba DVD player, I forget the model
but
I wanna say 1700 something, anyhow it worked fine then one day had no
sound.
I played around, verified the audio settings are correct, and checked and
found that the digital output works just fine, it's just the analog RCA
jacks for stereo sound that are bad, no cracked solder joints, anyone ever
run into this? I know it's not worth spending a lot of time on, just bugs
me
since it seems like it should be something simple.
Click to expand...
 
Yes is this the small cased DVD player ?
I work on lots of new returns and have found at least 25 of these
Toshiba players with no sound out the 2 RCA jacks .

The circuit board inside is just one board with all the jacks on it . I
have pulled the board out of a few to do some tests and have found no
bad caps yet .
I suspect a bad run of IC chips in those .
 
"Ken G." <goodguyy@webtv.net> wrote in message
news:9094-3FC78E96-133@storefull-2317.public.lawson.webtv.net...
Yes is this the small cased DVD player ?
I work on lots of new returns and have found at least 25 of these
Toshiba players with no sound out the 2 RCA jacks .

The circuit board inside is just one board with all the jacks on it . I
have pulled the board out of a few to do some tests and have found no
bad caps yet .
I suspect a bad run of IC chips in those .
Click to expand...
It's a normal sized DVD player, one of those ugly silver ones, inside
there's a power supply on the left, mechanism in the middle, and digital
board on the right that has all the jacks and everything else mounted on it,
fairly standard looking unit.
 
James Sweet wrote:
"Ken G." <goodguyy@webtv.net> wrote in message
news:9094-3FC78E96-133@storefull-2317.public.lawson.webtv.net...

Yes is this the small cased DVD player ?
I work on lots of new returns and have found at least 25 of these
Toshiba players with no sound out the 2 RCA jacks .

The circuit board inside is just one board with all the jacks on it . I
have pulled the board out of a few to do some tests and have found no
bad caps yet .
I suspect a bad run of IC chips in those .



It's a normal sized DVD player, one of those ugly silver ones, inside
there's a power supply on the left, mechanism in the middle, and digital
board on the right that has all the jacks and everything else mounted on it,
fairly standard looking unit.


This is a copy of a reply by Mr. Reinhart dated 11/22/03:
Click to expand...


"On the mainboard, which is located on the right side of the chassis,
replace
capacitors c927, c928, and c929. They are located in close proximity
to the
A/V output jacks and the power supply connection, which are at the
upper left
corner. Fortunately, the caps are not surface mounted pieces of crap.

The old capacitors used in the player are rated at 100 microfarads at
16 volts
and are polarised. Go with capacitors that are rated at 100
microfarads at 25
volts or higher, also polarised. Radioshack sells 100 microfarad 35 volt
capacitors if you don't have a source for the required caps and/or
need these
caps in a hurry and don't care about price (Radioshack is expensive:
each cap
sells for about $1 a pop). When installing the new capacitors,
observe correct
polarity to prevent violent failure of the newly installed capacitors.

Be careful when desoldering the old caps. The board is multi-layered
and can
easily be damaged due to careless soldering.

The voltage ratings on a capacitor indicates tolerance, so typically
the higher
the voltage, the cooler the capacitor may run.

This is a common problem with Toshiba DVD players, particularly the
SD-1700 and
the SD-2700. - Reinhart"

Hope this helps-----I had the same problem with one of these caps.

Bill
 
VERY helpfull THANKS i will try this moday . Shouldhave come here sooner
i chucked about 15 of those players !
 
VERY helpfull THANKS i will try this moday . Shouldhave come here sooner
i chucked about 15 of those players !
Click to expand...
Do you have any spare remotes for the SD-1700? I've got an SD-1700 which has
no remote with it. And, you're welcome. - Reinhart
 
I've read abaout this very common problem so many times, yet never seen one
in my shop. Guess Toshiba's not sold much around Wichita, KS.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"LASERandDVDfan" <laseranddvdfan@aol.com> wrote in message
news:20031128212219.19914.00001213@mb-m02.aol.com...
VERY helpfull THANKS i will try this moday . Shouldhave come here sooner
i chucked about 15 of those players !

Do you have any spare remotes for the SD-1700? I've got an SD-1700 which
has
no remote with it. And, you're welcome. - Reinhart
Click to expand...
 
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