Repair

How to make a radio
I want to make a simple radio(reciever), without using any IC and by capacitor, inductor, transistor, diode and other simple electrical device Would you mind telling me how can I do that. Have you any reference or do you know any website or group to help me Thank you. ... 12 Nov 2009 01:49

MPA-31
KIA6280H Find diagram here : http://www2.produktinfo.conrad.com/datenblaetter/300000-324999/310816-sp-01-en-ELA_Universalverstaerker_2041.pdf ... 19 Oct 2009 10:50

PM 3055 scopes do not power up
Someone asked me about these oscilloscopes. Apparently he has a dozen of them that do not power up. No display or backlight on the LCD. Yes, AC power is set correctly. I haven't seen them so don't really have any more info. Anything common with these? Thanks! -- sam | Sci.Electronics.Repair FAQ: ht... 18 Oct 2009 19:23

casio cz-1
Hello, Does anyone have a service manual or schematic for this keyboard? I have the book for a 101, but it is substantially different in the area I'm trying to troubleshoot and I'm rather lost at the moment. ... 17 Oct 2009 22:47

Scott LK150
This beast is back on the bench for a cleaning and tune-up. The internal caps have been done long since, it is now about time to tackle the power-supply properly and cleanly - a task I have postponed for over a year now as last winter was taken up by the new (old) house. Does anyone have the original kit assemb... 18 Oct 2009 10:33

RCA chassis CTC187CL3 AY will not power up.
When you plug in the AC you can hear a slight high freq osc start so I think that the SMPS is OK. There were no shorts around the HOT. I did find some bad gounds and at least one fairly serious ring crack on a flyback terminal. I re soldered those and then noticed that a resistor was badly burned. It is near the fl... 30 Oct 2009 09:59

Problem with Sony KV-T25SZ8 TV when turning on
Sylvia Else wrote: This television displays a strange image and sound distortion just after it's been turned on, as shown in this 5 second video. http://www.youtube.com/watch?v=usQFxTJ04s4 It may do this several times, and, rather disconcertingly, seems to be slowly getting worse. Note -... 21 Oct 2009 16:01

Faulty Samsung SR-L3626B fridge-freezer
We have had our Samsung SR-L3626B fridge for about about 6 years. It has recently developed a strange fault whereby when it is powered on, the fridge and freezer will cool and compressor & fan will run for a few hours. After this, the fridge-freezer remains in standby but the compressor does not start again. S... 15 Oct 2009 21:38

Sherwood tuner died.
Hi All, I have a fairly old but lightly used Sherwood R 125 RDS ss FM receiver but note the FM tuner has died. Well, it's working in as much it appears to auto tune and lock onto a station and with the volume turned up you can hear it trying to work but it's if it's heavily muted (and distorted). FWIW the AM s... 15 Oct 2009 08:19

Acer 5520 won't power up?
An Acer 5520 notebook. Press power, the notebook powers on for a couple of seconds then powers off by itself. Then (without touching anything) it repeats the same power on/off cycle where the on is only a second) by itself over and over, until the battery is removed (which stops the cycle.) Tried the remove b... 18 Oct 2009 14:58