DIYbanter - Yamaha R-9 Part / Schematic question

carneyke wrote:
Hi,
I am having a problem identifying a couple diodes. They are marked
D514 & D516 (zener). The zener has an 01 or C1 on it. I have this
unit pretty much debbuged but could use some help identifying parts.
Also is the line fuse a 10amp slo-blo or fast acting ? Thanks in
advance !!!

Could you reply to there is an awful lot of
spam here anymore.

Good morning,

According to the schematic, D514 is a regular diode, and D516 is a
HZ6C1L zener. The parts list confirms the part number for D516, and
says that D514 is a 1S2473 or 1S1555, interchangeable. I'd take a guess
at a 6 or 6.1 volt zener, but I'd suggest you look up a cross reference.

The parts list does not say more than "UL10A250V" for the fuse, which
is about as useful as saying 'replace with same type'. However, for the
240V fuse they do specify a "T" type, which is a slow blow, so I'd guess
at at slow blow. If you want to be really safe, order the fuse from
Yamaha. Their part number KB001390.

Sorry, no scanner here.

Regards,
Tim Schwartz
Bristol Electronics