Electronics Forum / Repair / April 2007

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I have a Sony SLV920HF VCR that has a cracked gear. The gear drives the
posts that wrap the tape around the drum.  I need to get access to the
bottom of the transport to replace it.
Do I need to remove the transport from the top?  Or should I try and

I have an old Yamaha  CR-820 receiver/amplifier that no longer has any sound
output. The meters still show signal strenght when a tune across the AM/FM
bands but I get no audio from the speakers or the phone jack. No hiss. hum,
carckle or pops. JUst solid dead silence.

Anybody have any idea where to obtain service schematic, and parts
listing for a 1999 Ford AeroStar  #XF2F-18C868 AM/FM Cassette/CD
radio?  SAMS doesn't seem to have a listing for this, but would be
willing to buy the service manual if I knew where to look.  Thanks!

Good morning,
I need please schematic or manual of Panasonic Cassette player for car
CQ-FX55.
I am interested to use input CD charger for link to aux, therefore can

Hi I need to convert 12 volts ac to 24 volts ac for an outdoor
lighting project low amperage, say 500 ma. I am looking for a small
boosting transformer on the cheap. Any suggestions on where I can find
something like this? Alternately I could use a cheap 12 volt ac to 24

I picked up a Samsung Nexus XM receiver/MP3 player the other day.
I set up the docking base next to the stereo which also happens to be
next to the TV.
I turned it on, and the music came blasting out of the TV - even with

Folowing on from thread lower down. I just tried this to see what sort of
results you get simulating such a multi-secondary transformer using a known
good one but not using the primary.
I used a variac supply near the bottom of its range at 18volts and a 25 ohm,

I'm working on a Randell amp...I changed  the  2  electrolitic caps in the
power supply..but it still has a  hum  when the  volume  is turned up
alittle...I esr'ed   the other caps in circuit  and they look ok......help
......     any suggestions  ?   thanks

Good afternoon.
I periodically find myself working on equipment that uses slotted screws
with unusually wide, thin slots. For example, a Bolex 18-5 8mm projector
uses some screws with slots 5/16" long, but only .035" wide. A standard

I've a Peavey 5150 , 2003 USA made, for repair.
This is an export model for 240V/220V areas, no 110V option.
The mains lead has a German? integral plug( 2 round pins and a removed earth
pin but an exposed earthing point) on the lead with a German? socket to UK

Resetting/Hacking Sony Car Stereos from Japanese Tuning to
US...service manuals?
Hi there...
I was wondering if someone has any idea if ANY of the Sony "WX" series

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hello....
I still have lots of great old stuff needing belts and idlers.
Dalbani in Florida was a good source way back when.
But now I don't know who still has this stuff.

where I can get a schematics for the Handheld Jornada 720 ?
Its a prob in the power section i think, maybe simple and not near the
processors.
regards