Electronics Repair

NAD 3125 amp whooshing noise while powering on.

I have an NAD 3125 power amp. Approximately 15 seconds after it is powered on, there is a whooshing noise and then the...

5 comments posted 14yrs

posted by farberbear.unspam

5 comments posted 14yrs posted by farberbear.unspam

Hoseki Digital LED Clock

Hi all I have a Hoseki Digital LED Alarm Clock Model H-5008 / 230VAC The primary of the tiny transformer inside has gon...

4 comments posted 14yrs

posted by clueless

4 comments posted 14yrs posted by clueless

Searching for a AM broadcaster electronic kit manual C6752

I am searching for a AM broadcaster electronic kit manual from a Chaney Electronics kit. I have bought the kit back in...

0 comments posted 14yrs

posted by gccradioscience

0 comments posted 14yrs posted by gccradioscience

What Are the Cylyndrical Objects You Often See on Audio, USB, etc, Cables?

What are those cylindrical objects you often see surrounding the cable on USB, Audio, Firewire, etc cables? I am assumi...

14 comments posted 14yrs

posted by nelson

14 comments posted 14yrs posted by nelson

Hot electrolytics

Anyone idea of the temperature required to make the heatshrink label wrapper of a small radial electro shrink down the...

4 comments posted 14yrs

posted by diverse

4 comments posted 14yrs posted by diverse

Tektronix cross reference pdf for download

A nice find for anyone repairing Tektronix equipment Interesting as it's marked company confidential. www.ko4bb.com/Manu...

13 comments posted 14yrs

posted by none

13 comments posted 14yrs posted by none

Tektronix 2215A worth repair?

I have a tek 2215A CRO with following fault.. Left side of trace has a ripple, about 1/2 division vert amplitude and ab...

11 comments posted 14yrs

posted by public

11 comments posted 14yrs posted by public

Thoughts on this little oddity, anyone ...?

Had an Allen & Heath PA20-CP 2 x 500 watt powered mixer in today. Has two completely separate and identical power amps,...

44 comments posted 14yrs

posted by arfa.daily

44 comments posted 14yrs posted by arfa.daily

12.1 inch = 13 inches for LCD display?

12.1 inch diagonal, from corner to corner of the overlying mask, but that would be called 13 inches wouldn't it. No way...

10 comments posted 14yrs

posted by diverse

10 comments posted 14yrs posted by diverse

Sound on hdmi output video card

I am looking for a video card with hdmi output which allows me to run the sound out along with the hdmi cable. I prefer...

1 comments posted 14yrs

posted by NoEMail

1 comments posted 14yrs posted by NoEMail

Marantz PMD222 cassette recorder

I have a PMD222 cassette recorder with a motor no run problem. I have cleaned all the switch contacts,no help. Unsolder...

2 comments posted 14yrs

posted by t.hoehler

2 comments posted 14yrs posted by t.hoehler

caps for mobo

Of all the types of electrolytics at Digikey or Mouser, which do you favor for replacement of bulging mobo caps?

8 comments posted 14yrs

posted by td_03

8 comments posted 14yrs posted by td_03

Anybody have a schematic for the SMPS for this laptop?

Anybody have a schematic for this simple SMPS? AC to DC Adapter for the IBM Thinkpad T22 16V 3.36A On the unit itself i...

8 comments posted 14yrs

posted by robert.a.macy

8 comments posted 14yrs posted by robert.a.macy

Identify make and model of LCD display ?

12 inch diagonal, 12V dc supply as used here but may originally have had a ps. CVBS video input made 2005 to 2009 Build...

1 comments posted 14yrs

posted by diverse

1 comments posted 14yrs posted by diverse

how hot should a schottky get?

My dvd-dtt unit recently failed to start up. As I suspected, there was a bulged 1000uf 35v cap on the psu secondary so...

6 comments posted 14yrs

posted by reverend_rogers

6 comments posted 14yrs posted by reverend_rogers