Electronics Forum / Repair / June 2007

hi there, recently i repaired a dead sharp tv by replacing the jungle
ic x2701cen1 (exact replacement). It seems that everything works fine.
I fixed the remote control and we began using it (they havent used it
for a long time). But now the OSD menu lacks the necessary options

I have a minolta Dimage Z2.  During one of my trips, the lens cap fell
off and the camera lens had a deep scratch.  I am tempted to buy a
nonfunctioning camera for parts on ebay but I am not sure how easy it
is to dissassemble these digital cameras.  Anyone have any suggestions?

I disassembled this damaged (I think...) capacitor from my Fluke 87  1°
series.
What value is it?
May be 1µF?

Changed to roof antenna.
There is no local station on channel 3 or 4, and VCR's normally work only
on 3 or 4. My VCR is JVC brand, although that probably makes no difference.
My TV scans from the first local channel at 2 and stops at 6, can't get it

I'd like to try building an oscilloscope from an old CRT monitor or TV
set.  The purpose would be to display audio waveforms at one of the
science museums I work with; there's no calibration necessary.
I've tried the various sound-card based 'scope programs available for

I'm trying to fix a Yaesu FT-221 VHF transceiver. The fault seems in
the FM-IF board, now I haven't been able to find on the net datasheets
of the uA703HC (if amplifier?) and of the TA-7061AP (amplitude
limiter?) integrated circuits. I checked all other semiconductors with

East Power Development Ltd is a specialized manufacturer and exporter o
Low voltage --12volt or 24volt DC compact fluorescent light bulb , LE
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Guangdong, China. Products are far sold to over 40 countries an

One of my handheld flukes (77) now is reading about 2 ohms when its
leads are shorted on ohms scale. I tried another set of leads off of
another fluke, the same. I used test clips and bypassed the internal
protection fuses, the same. There was one pot by the display, did not

  I have a "Super Dog" Curtis Mathes/Samsung TV model CM27001S
(mfg. 11/01) in my shop.  I have SM (.PDF file).
  I have updated this from my original post and added more information.
  The TV will turn on.  There is around 27KV (measured) for the CRT.  There

Hello, all.  After 11 years of trouble-free operation of the subject TV
the following has occurred within the last two weeks:
The set would periodically lose vertical sweep (single bright horizontal
line).  Vertical sweep would often be absent upon power-up.  Lightly

I'm looking at buying a Devilbiss GB5000 portable generator.  Seller
says says it need a new stator for about $250.  Does any place
repair/rewind stators for small generators or is this strictly a remove
and replace part?

My daughter purchased a document shredder.  The name is Shredder Essentials
Model SES - C810  Serial #B07130500876
After some usage, it stopped working.  I opened the casing and found that
there were two nylon gears that had stripped.  I contacted Shredder

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Phipilips Audio System MC-M570 power supply problems. it works when it
wants the most of the time.

I repaired this Sony STR-DE915 receiver which had no output on any of the
channels even though the dc output was normal and the speaker relays were
clicking on. The culprits were two AC muting transistors, Q503 and Q512,
which are activated from the CPU.