Samsung TV/VCR Combo (model CXB1322) blows 3 amp F801 fuse w

[Joe R.]

I have a Samsung TV/VCR Combo, model CXB1322 that will blow the F801
fuse when the power button is pushed. It was making a high pitched
noise when it was plugged in and VCR was not working. As suggested in
a previous post, I replaced C810 (470 Mfd cap) which corrected the
noise problem. I checked C09 on VCR power supply and it measured .18
Mfd (should be 22 Mfd). I replaced it with a 22 Mfd cap (non-polar).
and everything worked fine. I turned tv on and off several times and
all was well. The next day, I plugged the TV in and went to power it
on, and fuse F801 on main board blew. I then pulled the power supply
out of vcr and removed the transsistors and some of the diodes to
check. All checked (with multimeter) good. I re-assembled the power
supply and plugged everthing in and all worked again. The next day, I
plugged TV in and fuse blew again. Has anyone run into this type of
problem that can point me in the right direction.
Thanks!

 

[Jerry G.]

Check the horizontal output transistor, and the flyback assy.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"Joe R." <jir@fngp.com> wrote in message
news:efd51c51.0312131547.7fe49d6b@posting.google.com...
I have a Samsung TV/VCR Combo, model CXB1322 that will blow the F801
fuse when the power button is pushed. It was making a high pitched
noise when it was plugged in and VCR was not working. As suggested in
a previous post, I replaced C810 (470 Mfd cap) which corrected the
noise problem. I checked C09 on VCR power supply and it measured .18
Mfd (should be 22 Mfd). I replaced it with a 22 Mfd cap (non-polar).
and everything worked fine. I turned tv on and off several times and
all was well. The next day, I plugged the TV in and went to power it
on, and fuse F801 on main board blew. I then pulled the power supply
out of vcr and removed the transsistors and some of the diodes to
check. All checked (with multimeter) good. I re-assembled the power
supply and plugged everthing in and all worked again. The next day, I
plugged TV in and fuse blew again. Has anyone run into this type of
problem that can point me in the right direction.
Thanks!

 

[Joe R.]

"Jerry G." <jerryg50@hotmail.com> wrote in message news:<brgfgd$kth$1@news.eusc.inter.net>...

Check the horizontal output transistor, and the flyback assy.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"Joe R." <jir@fngp.com> wrote in message
news:efd51c51.0312131547.7fe49d6b@posting.google.com...
I have a Samsung TV/VCR Combo, model CXB1322 that will blow the F801
fuse when the power button is pushed. It was making a high pitched
noise when it was plugged in and VCR was not working. As suggested in
a previous post, I replaced C810 (470 Mfd cap) which corrected the
noise problem. I checked C09 on VCR power supply and it measured .18
Mfd (should be 22 Mfd). I replaced it with a 22 Mfd cap (non-polar).
and everything worked fine. I turned tv on and off several times and
all was well. The next day, I plugged the TV in and went to power it
on, and fuse F801 on main board blew. I then pulled the power supply
out of vcr and removed the transsistors and some of the diodes to
check. All checked (with multimeter) good. I re-assembled the power
supply and plugged everthing in and all worked again. The next day, I
plugged TV in and fuse blew again. Has anyone run into this type of
problem that can point me in the right direction.
Thanks!

Thanks,
I already checked the HOT with a multimeter and the junctions were
good - no shorts. Is there any way to check the flyback for shorts,
either in circuit or out of the circuit? Could the flyback be
intermittent?