OK, just found this cap cheaper @ Digi-Key...and with no minimum order qty.
Manufacturer Part #: UPW1HR47MDD
Marantz 6300 Project: Part 1
After spending two weeks on researching and locating replacement parts, I finally got started on my 6300 project.
First, I went through and replaced all ten of the micro-switches with new equivalents from Omron. The old ones were fairly worn out and a few barely had any spring actuation left in them. As you can see, the new ones have a slightly longer lead and the common contact is located on the bottom side instead of being off to one side.
Original switch: Omron LV-3H-1A-S (3A125.250VAC)
Replacement switch: Omron VX-5-1A3 (5A125.250VAC)
Next, I replaced the SCR (thyristor). I've been having trouble with my photo unit circuit due to the Automatic Shut-Off not triggering properly, so I went ahead and found this equivalent from ON semiconductor.
Long story short; the collector on the phototransistor is coupled to the gate of the SCR, so as the collector voltage rises the gate voltage on the SCR also rises, thereby triggering the circuit to turn on.
Original SCR (thyristor): NEC 2P1M
Replacement SCR: ON Semi MCR72-3G
Is it ok to cut the ends of the thyristor shorter so it doesn't sit so high in the board or should I leave the legs long and solder it the way it is? Will cutting the legs shorter affect the switch?Marantz 6300 Project: Part 1
After spending two weeks on researching and locating replacement parts, I finally got started on my 6300 project.
First, I went through and replaced all ten of the micro-switches with new equivalents from Omron. The old ones were fairly worn out and a few barely had any spring actuation left in them. As you can see, the new ones have a slightly longer lead and the common contact is located on the bottom side instead of being off to one side.
Original switch: Omron LV-3H-1A-S (3A125.250VAC)
Replacement switch: Omron VX-5-1A3 (5A125.250VAC)
Next, I replaced the SCR (thyristor). I've been having trouble with my photo unit circuit due to the Automatic Shut-Off not triggering properly, so I went ahead and found this equivalent from ON semiconductor.
Long story short; the collector on the phototransistor is coupled to the gate of the SCR, so as the collector voltage rises the gate voltage on the SCR also rises, thereby triggering the circuit to turn on.
Original SCR (thyristor): NEC 2P1M
Replacement SCR: ON Semi MCR72-3G
I just picked up a few things from Mouser from your list. I'm fixing my auto stop and up/ down button issues. I already recapped this unit and cleaned lubricated the spindle housing. Thanks for the professional and thorough rebuild info. Very impressive.
Is it ok to cut the ends of the thyristor shorter so it doesn't sit so high in the board or should I leave the legs long and solder it the way it is?
Will cutting the legs shorter affect the switch?
Thanks for this awesome Marantz 6300 Project. This will be a great help for many 6300 owners for years to come.LN25 is an obsolete part.
LN28RPX from Mouser would work however.
LN25 is an obsolete part.
LN28RPX from Mouser would work however.
This is a round LED, right?. Is there a rectangular one available from Mouser that would work?
I took an ordingary red LED and bent it to point at the sensor - worked just fine.Anyone have a source for these red LEDs? Working on a 6300 now that has the infamous issue with not shutting down. Im ordering a new optic sensor as well but seems Mouser has the LED listed as obsolete.
Ive tried searching through mouser for a replacement but only came up with the Dialight 560-0104F which has no datasheet. Figured Id ask before taking the chance. Id prefer to stick with mouser if possible as I have a cart saved for some other projects.
That's actually the one I used!