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Shoutout to the old timer who told me to check the clock signal first on a dead 90s stereo
I spent two hours checking caps and power rails on a Technics receiver, but he said to probe the main crystal with my scope before anything else. Sure enough, it was flatlined, and swapping that 4MHz oscillator brought the whole unit back. Do you guys have a go-to first check for 'totally dead' gear, or do you just follow the power?
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tarahall5mo ago
What about checking for cracked solder joints on the big connectors? I've found that's another quick win before diving deep into the power supply, especially on heavy units that get moved around a lot. A cold joint on a main board plug can look fine but kill everything.
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sarahp345mo ago
Oh man, that's a great tip from @tarahall! Had a VCR once that was totally dead, and it was just a cracked joint on the power input. Felt so smart fixing it in five minutes.
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drew_patel5mo ago
People forget how much heat cycles can mess with old solder over time. The board expands and contracts every time it warms up, which slowly cracks those joints. It's why stuff that gets used a lot dies in a weird way.
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