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 Fixing old TVs and radios
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 Return to top of page · Post #: 1 · Written at 7:41:16 AM on 28 June 2015.
Jgasdj's Gravatar
 Location: Lake Macquarie, NSW
 Member since 1 April 2014
 Member #: 1539
 Postcount: 27

Hi , the old valve TVs and radios used large components which you could handle and see, I would love to hear from any electrical engineers out there who think that surface mount technology is too small to fix, you need a magnifying glass to see the values of the resistors etc. I miss the olden days of analogue circuit repair where you have point to point soldering and components what you can see. Thankyou.


 
 Return to top of page · Post #: 2 · Written at 8:20:41 AM on 28 June 2015.
Redxm's avatar
 Location: Tamworth, NSW
 Member since 6 April 2012
 Member #: 1126
 Postcount: 466

I agree that SMDs are harder to fix. The larger resistors , caps and diodes arent too bad. The small stuff is pretty much my limit, and specialist gear is required for some. ICs - forget it without an infra red desolder station.

Of course, worsening eyesite doesnt help.


 
 Return to top of page · Post #: 3 · Written at 9:10:49 AM on 28 June 2015.
Brad's avatar
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7290

Generally, SMD-equipped circuits are not economically viable to repair because of the intricate work involved. When something in a mobile phone or flat screen television breaks then there's only two choices. Replace the whole circuit board or just throw the appliance on the tip and buy another one.

Good for the manufacturers but not so good for the planet.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 4 · Written at 10:50:37 AM on 16 August 2015.
Jgasdj's Gravatar
 Location: Lake Macquarie, NSW
 Member since 1 April 2014
 Member #: 1539
 Postcount: 27

Yes I agree, today we live in a throw away society, I miss all those old sets which had point to point circuitry, the manufacturers could at least make surface mount components which could be handled and read. Thanks...!


 
 Return to top of page · Post #: 5 · Written at 8:15:35 PM on 15 March 2018.
Jgasdj's Gravatar
 Location: Lake Macquarie, NSW
 Member since 1 April 2014
 Member #: 1539
 Postcount: 27

Thankyou for your comments about surface mount devices and modern appliance repair, I really miss the olden days when you could repair an appliance with a schematic. Thankyou....


 
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