MC2205 Lamp Board - Project for 2020 ?
- Thread starter Hofvox
- Start date
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MACKIE1975
Super Member
should not belong here. No sales pitch
clinic-audio
all on YAMAHA untill 1990
Hello
Your question can't wait untill monday to get an answer ?
What do you call MC2205 lamp board ? The pcb with NORMAL and LIMIT lamps ?
jbailey930
AK Member
Sorry about this. What happened? I expect you need a donor.
Hofvox
Active Member
What Happened:
On the many units I have worked on, the traces have lifted or solder tabs completely broken off in the area of the Bi-Pin lamps. It appears the weekend hobbyist trying to convert the LEDs are not careful when inserting those Bi-Pin lamps forcing the traces to bend upwards or fracturing. I have a new and improved concept lamp board designed as a replacement.
Making boards nowadays is a simple and an inexpensive process even in small quantities. I would like to make a dozen or so boards for my use. Other than modifying the traces to meet McIntosh approval I will add a "solder to board screw down header" for the 6 original wires. Instead of soldering original 6 wires onto the new board you just screw them onto the new header. The original board is a very simple design and simply attaches via 2 standard lock washer nuts making ground. The 10 pin spiked header will remain on the new board like the original.
Bottom Line: I would rather send a dead or trashed board and not one currently in any of my units. Thus, looking for a trashed or extra board without having to buy a completely trashed unit to harvest donor board.
On the many units I have worked on, the traces have lifted or solder tabs completely broken off in the area of the Bi-Pin lamps. It appears the weekend hobbyist trying to convert the LEDs are not careful when inserting those Bi-Pin lamps forcing the traces to bend upwards or fracturing. I have a new and improved concept lamp board designed as a replacement.
Making boards nowadays is a simple and an inexpensive process even in small quantities. I would like to make a dozen or so boards for my use. Other than modifying the traces to meet McIntosh approval I will add a "solder to board screw down header" for the 6 original wires. Instead of soldering original 6 wires onto the new board you just screw them onto the new header. The original board is a very simple design and simply attaches via 2 standard lock washer nuts making ground. The 10 pin spiked header will remain on the new board like the original.
Bottom Line: I would rather send a dead or trashed board and not one currently in any of my units. Thus, looking for a trashed or extra board without having to buy a completely trashed unit to harvest donor board.
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