Yamaha B-2 meter bulbs
- Thread starter dnewma04
- Start date
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Go here http://audiokarma.org/forums/showthread.php?t=45419&page=3&pp=15 and read posts 32 & 34. While you are at it, suggest you change out the fuses, which are also likely original and seem to get brittle and crack with age (30+ years). Bad fuse results in the relays not picking up. The amp is quite modular and you can change the bulbs and fuses by pulling the case, knobs on the front and removing the faceplate. Trim the leads on your new bubls so that they fit entirely through the rubber holder and fold back an extra 1/4" or so on the outside. This insures the lead makes good contact with the post when you slide it back in place. For the fuse, you need to pop the power supply board to find the two (?) underneath. Don't have to remove any wiring. You might also want to check the bias while in there. PM me with your e-mail address and I'll send along a copy of the schematic, if you want. Eventually I'll get the manual scanned in to .pdf.
