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Old 07-18-2020, 09:58 AM
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Ed in Tx Ed in Tx is offline
Zenith Walton My 1st TV
 
Join Date: Nov 2008
Location: DFW
Posts: 1,420
Quote:
Originally Posted by AdamAnt316 View Post
"Stereo: Pioneer SPEC-4..."
Another "btw"... The Sony FD91 also took great macro closeups. I see "SPEC-4" in your list. I own two SPEC-4s, consecutive serial numbers. One of them blew up back in 2011. I've attached a couple of pics taken with the FD91 of weak cracked solder connections on the main amp board that fried. Before you turn on your SPEC-4 again I would highly recommend you go through it and re-solder everything! Then scrub off all the old brown nasty looking flux from the boards with a toothbrush and alcohol. Clean'em up good. All the boards in both of mine had cracked solder connections. The one that blew took out resistors, finals, drivers, other small transistors and diodes.
Attached Images
File Type: jpg pio-spec4-solder1-a.jpg (64.7 KB, 12 views)
File Type: jpg pio-spec4-solder2-a.jpg (62.9 KB, 12 views)
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