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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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15th Jul 2019, 9:56 pm | #1 |
Octode
Join Date: Feb 2018
Location: Southampton, Hampshire, UK.
Posts: 1,049
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Dismantled VCR component mounting etc.
Recently I have been dismantling some VCRs and came across a common theme of soldering. The power supply diodes haven't been soldered flush to the PCB and some of the larger resistors also have a gap between them and the board. Has this got anything to do with heat dissipation ?
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15th Jul 2019, 10:32 pm | #2 |
Dekatron
Join Date: Aug 2006
Location: Madrid, Spain / Wirral, UK
Posts: 7,484
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Re: Dismantled VCR component mounting etc.
Almost certainly, stops the board getting damaged and carbonizing in use.
Personally I would avoid reusing most components from the PSU as they lead a hot and hard life. The SMPS transistor is probably worth saving, plus any obscur schottky diodes etc. Forget the caps though.
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Regards, Ben. |
15th Jul 2019, 10:58 pm | #3 |
Octode
Join Date: Feb 2018
Location: Southampton, Hampshire, UK.
Posts: 1,049
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Re: Dismantled VCR component mounting etc.
Thanks. I dismantled the VCRs for the BLDC motors, so anything else worth salvaging would be nice too. Apart from the semiconductors, there are some blue blob-like inductors and infrared receiving diodes that I might want to desolder.
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