Electronics Forum / Repair / November 2004

I have a 32" Sharp widescreen TV which is approx 3 years old.
Recently it has developed a problem with the sound.
After a few minutes (between 5 - 20 mins) of viewing there is a loud crackle
which sounds like static coming from both speakers.  The picture is fine but

L.S.
I am looking for the schematic of a Mission amplifier, type cambridge.
Could anyone help me out or give me a pointer to an web address where i
can download it?

HCL552W
HCL652W
HCL5515W
HCL6515W

Hi--
I have a JVC PIP remote that finally, after it's 100 th fall on the floor,
has bit the dust.
The volume still works, but the channel changing and sleep time now are

Sum 1 tellin me to put passitor in series, whada ye meen series, world
series.

My house will be empty for an extended period.  I will of course have
timer switches to turn on the lights to give an appearance of
occupancy.  I would also like to turn on the TV set but the regular
switch timer will not work.  Is there some plug-on device I can use to

I was wondering if anyone has ever encountered a Kenwood D-Mask stereo that
would not retract into its stealth mode. In particular the model I am
referring to is a KRC-805. I have the service manual etc. but of course that
does not trouble shoot step by step. I changed out the motor ...

Monthy bandwdith exceeded.
Until this is resolved, please use:
http://repairfaq.ece.drexel.edu/   or
http://repairfaq.cis.upenn.edu/

I have a Mitsubishi 27" TV with a new problem (along with several others,
but the rest don't bother me)...  the picture is squished so it has an
hourglass effect....
After operating for awhile, the picture will 'unsquish' to a normal picture

The problem is a bought a brand new Sony VCR a while ago and the
remote control will just stop working.  If I take one of the two AA
batteries out for a second then put it back in it will work for a
while then just stop working.

Can anyone help me with any ideas on how to fix a Sony CDX-4180FP
Radio/CD player in my car?
When you turn the volume up it sticks on that level and won't go up or
down no matter how much you turn the control knob.

I had my fluorescent work bench lamp apart today to try to stop an
annoying intermittent buzz from the ballast.  It's a typical two 15W
tube with separate series inductor ballasts for each tube.  
I was surprised to see a 4.7uF cap in series with one of the ballasts,

Hi Guys, not a fault really, just something that has bugged me for a
long time. When you change channel, the OSD shows channel no & time.
How the heck do you adjust the time? I've tried every combination of
button presses I can think of to no avail. Obviously I don't have an

I have a 54" RCA rear projection. I had a new hardwood floor installed
with an electric heating grid underneath. The grid consists of heavy
screen mesh, similar to window screen but 2-3 times heavier wire, laid
in one continuous circuit back and forth across the room. There is a

Can anyone offer any advice on the replacement of the protective screen in
front of the plasma panel.
(Have got a customers set with a cracked glass)
Is there a safety issue regarding special coatings etc to protect from RF