Electronics Forum / Repair / July 2005

Hi everybody, I have an older Ipod and it has a 9 pin smt firewire connector
on the mainboard. One or two of the connections were cracked and I reflowed
them with my 15/30w iorn and it worked great for 2 days and now it has broke
loose again. I guess I'm looking for some tips on ...

My trusty Sony TRV730e Digital8 camcorder has just started to play up.
The picture is divided by several thick black horizontal bands and the
sound drops in/out continuously.
I've run a head-cleaning tape through but this has had no effect. The

I am seeking advice on the replacement of the moving contact on a 2 amp
Variac.The original "Brush" appears to be made from Graphite and is about
4mm in diameter.
The makers were Zenith Electric London (RIP).

My TV will not not come on, fuse is OK, I have no print, need some ideas
where to look, 32 years electronic experience, but not with TV, help
please
Thanks

Does not respond to remote once remote turns TV on.  Use Philips remote, RCA
unvirsal, and satellite remote.  All have worked before, all do the same
thing, once they turn on the TV, the TV does not respond anymore.  Changed
batteries in all remotes with brand new ones.  Can ...

I've been seeing listings for Coby brand of 5 1/2 in. color tv sets.  I
can't find them rated in Consumer Reports, or even on the internet, for
that matter.
Does anyone reading this know about Coby?  How is the quality of their

I have a problem with 2 of my DVD players. They read CDs fine but when
a DVD is inserted, the DVD player doesn't even register that it has a
disc in the machine. Can anyone help me fix this problem?

I'm servicing a low end Melody guitar amp. Guitar amps are something I do
not normally service. It looks like it's from the 1960's. It has a speaker,
three inputs, but only one volume control. There's a plug for a foot pedal
and controls for volume, tone, speed and depth. Internally ...

I have the exact symptom as described by another user here.
Unfortunately, my is a little bit over 3 years old.
Old capacitors?
"I have a 19" Viewsonic P95f that is just under 3 years old (the 3 year

I am unable to start my tv, the stanby light is flashing and there is a
ticking noise. Is it worth changing the power supply circuit or can anyone
suggest what to do next.

Two RF transistors, 2SC1970 and 2SC1971 are supposed to have BEC
pinouts according to data sheets.  However, it seems that such
transistors with BCE pinout also exist; resistors in one circuit caught
on-fire when I plugged a 2SC1971 into a BEC socket (based on data

Hello, I have bought an old dial telephone and found it had been messed
up internally. I would sure like to get the thing working again, can
anybody help!
The only identification seems to be: T.rel 19a, this is printed on the

I posted a while back about a sparking problem in a tatung monitor, I am
very grateful for the helpful replys. The replacement flyback
transformer arrived today, but there is a slight difference.
The original model (FEA652) has 2 focus controls and 1 focus wire.

Alpine car amp model:3548,year:1994 (just a guess) one day the unit
will not power up the LED light would remain in orange not switch to
green,upon troubleshooting I noticed that E301=2200 Uf,16v capacitor
was bulged up so I replaced it along with E302=2200 Uf,16v and

I just recovered the old monitor that I used to use for my C64 and
later for my game systems. After recovering it, I tried to use it with
my vintage NES. When I turned it on, I had major trouble adjusting the
color, but everything else more or less worked. I opened the case to