Electronics Forum / Repair / May 2004

Help!
Can somebody tell me the specific name of the equipment that would be used to
analyze a cassette tape that's been altered?
What type of business would provide this type of service?

A short while ago, my coax connector on the back of my Toshiba 32"
snapped off. I'm not sure how or why this happened. I certainly wasn't
around when it happened.
Anyway, it's now really difficult to get good cable reception. When I

I recently bought a Mint Sony SLV-595HF VCR, which was working
perfectly for about three months, and then I decided to start using
T-160 tapes 9-hour tapes.
Then it happened: The tape in the winding spool in the cassette

I'm putting together a battery site light for working on the consumer
units etc of empty properties.
The organisation I work for has a few ready made ones form nightsearcher
(www.nightsearcher.co.uk) which provides light for a whole 8 hour shift

Fellow tinkerers,
    I have need of the service manual for the Nakamichi MR-2 cassette
deck. However, my initial web-probing has turned up zip in the way of
results.

Ok, this this is the last of them... anyone got data on:
 AM2964 (40 pin IC, DMA controller I believe)
 8279 (40 pin IC, also a DMA controller I think)
 2651N (28 pin, no idea what these are)

My remote control has stopped working.
I checked with the night vision device and IR light not working.
Could anyone tell me how to chech if the controller or the LED ?
Any help would be great

I have an HP Model 120B oscilliscope.  It's quite old (from the 50s, I
believe) but its been working perfectly until now.  I recently moved across
town and after setting the thing back up, I noticed it had developped a
problem.  The waveform trace does not "stabalize" vertically.  ...

Silly question time - can a faulty graphics card damage the HV side of a
CRT monitor? I would have said no, but having read the monitor repair
FAQ wanted to double check.
The video card is an old ATI Rage II in my second pc. A while back the

This is weird :
motor runs faster and plays tapes comarable to playing a 33 1/2 speed record
in 45 rpm mode
panasonic RX-FS470 ( stereo radio tape recorder )

Hello-  Have any techs experienced the following problem with this
model ? A few seconds after I turn it on I get a "PowerOff" message on
the display. It keeps flashing for a few seconds then the unit shuts
off. Any tips or hints as to what might be causing this are greatly

Hey all.  I'm looking to get a replacement jungle ic (cxa1477as) for a
46kp25s RPTV and found a couple vendors of "replacement" IC's for much
less than sony OEM. Anyone have any experience with replacement or
substitute IC's? Who are reliable vendors?  Anyone dealt with river

Samsung HLN4365W HDTV Lamp Dies
Ok... you guys always come up with some good possible answers.
I came across this DLP projector for little money. This I believe this unit
was damaged during the original shipping to the dealer as the inside is

I have a toshiba 36" TV that is about 9 years old.. It's been a good
TV until today.. I turned it on and the power light lit up but there
was not picture only sound.. I tried all the connnections and tried
turning it off and then on again several times and then realized that

I'm making an effort to get together datasheets for all my scavenged ICs,
but CPU ones seem particularly hard to come by.
Has anyone got any datasheets on the following (old!) chips?
 6802,