Electronics Forum / Repair / July 2004

I have a HP A0 plotter that needs a repair to the ribbon/membrane connector
that contacts the print head cartridges. Some breaks in the track due to
corrosion/stress at the point where the gold plated portion interfaces with the
rest of the covered ribbon.

I am hopeing somebody can throw some light on this.  I have a Onkyo TX-
SR500 AV Amp. I bought it from Ebay for a good price. Thing is I just
discovered that the dolby digital decoder seems to have a problem. On
checking around the web this seems to be an issue that Onkyo know ...

Updating some old speaker cabs Disco type, previously they had a 15" driver
and a peizo just soldered together and sounded quite good, I have  new
speakers and now I see bullet tweeters that require a crossover or hi-pass,
the crossover is about 2x the price of the hi-pass, could ...

Does anyone know if this is a definite diagnostic indication or
perhaps you might be able to point me in the right direction
troubleshooting this chassis? I'm not familiar with it. Thanks, Lenny
Stein, Barlen Electronics.

I thought this would be a Great Idea to have an Email list where you can
look for Arcade Game Parts that may be hard to Find....or if you have any
you want to sell.
The List does not allow Attachments, and you have to be approved by the

Hi everyone, i have a Panasonic TV model CT-Z2136W and i need some
manual that can help me to adjust the parameters, such as color, hint,
brightness, etc, in the adjust mode, no by the normal user menu. I
think the red color predominate over the other colors.

I have found some time ago a link to a list with images of car connectors
for auto radios radioCDs etc. Unfortunately I have deleted it and never
downloaded this list. Does anyone can point me to a link???
Thank you

I have a 27" APEX tv (dont remember the model) and only 9month old, bought
in 2003 from Walmart.  It suddenly not responding to the remote turn on or
at the tv turn on switch.  A very faint noise (a series of short pulse of
smooth "shh" sound)  comming from the back of the tv that ...

MY car installed a ignition kill switches device which use a soft
plastic keypad to entering a code. after 10 years the pad seems
wearout, I have to try enter the code many many times before I can
make it works. I can not find replcement part because no one sell this

A colleague asked me to apply my repair skills to a Pioneer CLD-2950
laserdisk player, which he bought cheap on Ebay (should know better!)
The PSU was tripping out due to overcurrent which I traced to a
shorted TA8464K power amp which drives the focus/tracking. With this

I have a 13 year old Sony KPR-46EX32 RPTV.  Last weekend the picture
started suddenly going completely black after between 20-90min of
operation.  I have a service manual and pulled the "A" and "G" boards
out on the floor behind the TV.  The DC voltages all seem to be ok.

There have been many times IME that a piece of electronic equipmenet
has failed to function altogether or more likely developed some
annoying intermittent fault and the cure was simply to take the lid
off and blast the circuit board(s) with an aerosol of compressed air.

Got this several years ago at a Hotel remodel sale, Works fine, still
use it as a kid's TV, but some time ago the "Blue" went bye-bye.  I
know nothing about TV repair, so bare with me as a newbie.
I open the back, and the small board that plugs into the tube has a

I am working on an Thomson TV set chassis ICC19-2H with following problem.
When started first TV trie to start 3 times and than goes in standby mode.
I turned the screen voltage completely down on CRT (EHT) and than i got a blue screen with no sound.
I replaced the CRT but the ...

I found out how to get to the service menu for this TV. Now what? I
recognize words such as gdrv (green drive) and ghue (green hue), for
example. But I wonder about some of the other codes. Also, what happens
when certain items have their values increased or decreased? Without