Electronics Forum / Repair / August 2007

A while back I posted aboiut one of these. I described things pretty
well, so if you want some more detail search the group.
Thing is, I now believe I can fix these things. I am planning to
dedicate a day or so. As you remember I do not have any part of the

I am new to this group.
Can anyone help me with a circuit diagram for a Pioneer SX-434 tuner amp
please
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Ron or anybody. Looking for a schematic for a Peavey Backstage 50. Anybody
got one they can scan for me ?
Arfa

Referenced laptop is in good working order with the exception of the
USB connections.  This model has two connections incorporated into one
assembly -  "piggy backed" may be a good description.  The problem is
that one of the two connections is physically broken and cannot be

looking for some help on this set dont have a sams on it. got it to come up
one time and now it only blinks 2 or 3 time and then shut down. could this
be the regulator or is there something else causing this problem. thanks in
advance.

This computer had the power jack totally ripped off and basically rattling
around inside.  Anyone familiar with this type of jack knows that to do
that takes some effort.  I'm not sure if even dropping the laptop to
dangle by the power cord could it.

Ge Profile Built in
JT915 - 30 "
When I press Bake and set temp on keypad
the oven fails to heat. 100 degrees in red stays at 100

First at all I have to say that my English is little bit rusty, but
hopefully you understand what I try to say.
I have this Sony 7.1 channel receiver which makes a crackle(is it
right term?) noise in front left speaker (A+B) and headphones(left ch.

Allow me to share with you here some information about one man his
name is muhammad.
In The Name Of Allaah,
Most Gracious, Most Merciful

Hi Folks. I'm posting here as a last resort, i've spent more time on
this tv it ever worths, but money isn't the point more that i wouldn't
give up. I hate spending time on something and give up on it at the
end argh.

I have an Enlight 350W power supply that has been doing a fine job for
several years. In fact, it is still doing a good job but has recently
developed a high-pitched whining noise. It is not the cooling fan. I opened
up the supply, and the noise seems to eminate from a section ...

Model # 27R430T (YX1), Chassis # ITC008FAR, dead, nothing shorted, or
leaky, all standby voltages are ok, plug unit in, & just relay click
for degaussing. No start up, or High Voltage.
Could the tact switches be leaky? It has a front panel board with the

my projector (TV) got zapped by lightning last night and i think i
have found the problem ( i hope) .  there is a row of regulators
along
the back of the power supply board. one of them was destroyed by the

Looking for a way to activate a small lamp to show when a remote mounted
water pump is running. I know I have seen the method before but my dusty
brain cannot seem to find it. The pump is a 120volt unit mounted in a
remote pump house out of visual range or I would wire a light ...

Drunken owner of DVD player managed to go into the set-up and change
language to German and NTSC for the UK (English and PAL)
Not only that but full brightness and minimum contrast
With a B&W image now on a UK TV, only line-locked, and about 3 overlayed