'HELP' 46" RCA Projection TV

S

Sparky

Guest
I have a RCA 46" projection TV with a Hitachi chasis. The problem I am
having is that the TV keeps blowing a fuse. When it blows the fuse the
screen flashes red and goes blank and the sound stays on. I no longer
have a picture. Is there anyone out there who can help me diagnose
this problem. I have the schematics.
Thanks
 
Which Hitachi Chassis?
What troubleshooting have you done so far?
What were the results of the Google Groups search for similar model
problems?
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310111500.26712102@posting.google.com...
I have a RCA 46" projection TV with a Hitachi chasis. The problem I am
having is that the TV keeps blowing a fuse. When it blows the fuse the
screen flashes red and goes blank and the sound stays on. I no longer
have a picture. Is there anyone out there who can help me diagnose
this problem. I have the schematics.
Thanks
Click to expand...
 
David,
I tried looking for the chassis information and couldn't find it.It is
a Colortrak 2000. The model number is P46000T made in 1989. When the
electrician came in to fix it he did some basic trouble shooting and
said it had to be taken in for a more intense look. When he got the TV
in his shop he found that it had blown a fuse. So he replaced the fuse
and brought it back to me. He said it may or may not blow again and if
it does to just replace the fuse. He said that it would be hard to
find out what the problem was until something started to smoke or
something went out. He mentioned that the underline problem could be a
drive as this makes the transistor blow a fuse. I did notice that he
replaced the fuse with a 2amp 250v and the TV calls for a 1.5amp 125V
could this be a problem? I have replace 2 fuses 2amp 250v quick acting
fuse twice in about 15 hours of veiwing.
Thanks for your interest,
Val
"David" <dkuhajda@locl.net.spam> wrote in message news:<3f88d1aa@news.greennet.net>...
Which Hitachi Chassis?
What troubleshooting have you done so far?
What were the results of the Google Groups search for similar model
problems?
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310111500.26712102@posting.google.com...
I have a RCA 46" projection TV with a Hitachi chasis. The problem I am
having is that the TV keeps blowing a fuse. When it blows the fuse the
screen flashes red and goes blank and the sound stays on. I no longer
have a picture. Is there anyone out there who can help me diagnose
this problem. I have the schematics.
Thanks
Click to expand...
 
David,
I tried looking for the chassis information and couldn't find it. The
model number is P46000T made in 1989. When the electrician came in to
fix it he did some basic trouble shooting and said it had to be taken
in for a more intense look. When he got the TV in his shop he found
that it had blown a fuse. So he replaced the fuse and brought it back
to me. He said it may or may not blow again and if it does to just
replace the fuse. He said that it would be hard to find out what the
problem was until something started to smoke or something went out. He
mentioned that the underline problem could be a drive as this makes
the transistor blow a fuse. I did notice that he replaced the fuse
with a 2amp 250v and the TV calls for a 1.5amp 125V could this be a
problem? I have replace 2 fuses 2amp 250v quick acting fuse twice in
about 15 hours of veiwing.
Thanks for your interest,
Val
"David" <dkuhajda@locl.net.spam> wrote in message news:<3f88d1aa@news.greennet.net>...
Which Hitachi Chassis?
What troubleshooting have you done so far?
What were the results of the Google Groups search for similar model
problems?
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310111500.26712102@posting.google.com...
I have a RCA 46" projection TV with a Hitachi chasis. The problem I am
having is that the TV keeps blowing a fuse. When it blows the fuse the
screen flashes red and goes blank and the sound stays on. I no longer
have a picture. Is there anyone out there who can help me diagnose
this problem. I have the schematics.
Thanks
Click to expand...
 
In any case, the set with the monolithic ceramic horizontal drive module are
knwon for those going bad. Bath chassis designs are known for the hv
splitter failing. Plus do not forget about high esr electrolytic capacitors
due to the extreme old age of the unit.
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310121341.6f687dcb@posting.google.com...
David,
I tried looking for the chassis information and couldn't find it. The
model number is P46000T made in 1989. When the electrician came in to
fix it he did some basic trouble shooting and said it had to be taken
in for a more intense look. When he got the TV in his shop he found
that it had blown a fuse. So he replaced the fuse and brought it back
to me. He said it may or may not blow again and if it does to just
replace the fuse. He said that it would be hard to find out what the
problem was until something started to smoke or something went out. He
mentioned that the underline problem could be a drive as this makes
the transistor blow a fuse. I did notice that he replaced the fuse
with a 2amp 250v and the TV calls for a 1.5amp 125V could this be a
problem? I have replace 2 fuses 2amp 250v quick acting fuse twice in
about 15 hours of veiwing.
Thanks for your interest,
Val
"David" <dkuhajda@locl.net.spam> wrote in message
news:<3f88d1aa@news.greennet.net>...
Which Hitachi Chassis?
What troubleshooting have you done so far?
What were the results of the Google Groups search for similar model
problems?
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310111500.26712102@posting.google.com...
I have a RCA 46" projection TV with a Hitachi chasis. The problem I am
having is that the TV keeps blowing a fuse. When it blows the fuse the
screen flashes red and goes blank and the sound stays on. I no longer
have a picture. Is there anyone out there who can help me diagnose
this problem. I have the schematics.
Thanks
Click to expand...
 
If the screen flashes red maybe the red tube has an intermittant short?

"David" <dkuhajda@locl.net.spam> wrote in message
news:3f8a1a81@news.greennet.net...
In any case, the set with the monolithic ceramic horizontal drive module
are
knwon for those going bad. Bath chassis designs are known for the hv
splitter failing. Plus do not forget about high esr electrolytic
capacitors
due to the extreme old age of the unit.
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310121341.6f687dcb@posting.google.com...
David,
I tried looking for the chassis information and couldn't find it. The
model number is P46000T made in 1989. When the electrician came in to
fix it he did some basic trouble shooting and said it had to be taken
in for a more intense look. When he got the TV in his shop he found
that it had blown a fuse. So he replaced the fuse and brought it back
to me. He said it may or may not blow again and if it does to just
replace the fuse. He said that it would be hard to find out what the
problem was until something started to smoke or something went out. He
mentioned that the underline problem could be a drive as this makes
the transistor blow a fuse. I did notice that he replaced the fuse
with a 2amp 250v and the TV calls for a 1.5amp 125V could this be a
problem? I have replace 2 fuses 2amp 250v quick acting fuse twice in
about 15 hours of veiwing.
Thanks for your interest,
Val
"David" <dkuhajda@locl.net.spam> wrote in message
news:<3f88d1aa@news.greennet.net>...
Which Hitachi Chassis?
What troubleshooting have you done so far?
What were the results of the Google Groups search for similar model
problems?
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310111500.26712102@posting.google.com...
I have a RCA 46" projection TV with a Hitachi chasis. The problem I
am
having is that the TV keeps blowing a fuse. When it blows the fuse
the
screen flashes red and goes blank and the sound stays on. I no
longer
have a picture. Is there anyone out there who can help me diagnose
this problem. I have the schematics.
Thanks
Click to expand...
 
David,
Do you have any suggestion on how to fix this or can you tell me how
to narrow the problem down?
Thanks
"David" <dkuhajda@locl.net.spam> wrote in message news:<3f8a1a81@news.greennet.net>...
In any case, the set with the monolithic ceramic horizontal drive module are
knwon for those going bad. Bath chassis designs are known for the hv
splitter failing. Plus do not forget about high esr electrolytic capacitors
due to the extreme old age of the unit.
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310121341.6f687dcb@posting.google.com...
David,
I tried looking for the chassis information and couldn't find it. The
model number is P46000T made in 1989. When the electrician came in to
fix it he did some basic trouble shooting and said it had to be taken
in for a more intense look. When he got the TV in his shop he found
that it had blown a fuse. So he replaced the fuse and brought it back
to me. He said it may or may not blow again and if it does to just
replace the fuse. He said that it would be hard to find out what the
problem was until something started to smoke or something went out. He
mentioned that the underline problem could be a drive as this makes
the transistor blow a fuse. I did notice that he replaced the fuse
with a 2amp 250v and the TV calls for a 1.5amp 125V could this be a
problem? I have replace 2 fuses 2amp 250v quick acting fuse twice in
about 15 hours of veiwing.
Thanks for your interest,
Val
"David" <dkuhajda@locl.net.spam> wrote in message
news:<3f88d1aa@news.greennet.net>...
Which Hitachi Chassis?
What troubleshooting have you done so far?
What were the results of the Google Groups search for similar model
problems?
David

Sparky <shastadream@yahoo.com> wrote in message
news:ded0a262.0310111500.26712102@posting.google.com...
I have a RCA 46" projection TV with a Hitachi chasis. The problem I am
having is that the TV keeps blowing a fuse. When it blows the fuse the
screen flashes red and goes blank and the sound stays on. I no longer
have a picture. Is there anyone out there who can help me diagnose
this problem. I have the schematics.
Thanks
Click to expand...
 
You must log in or register to reply here.

Welcome to EDABoard.com

Sponsor

Back
Top