Please contribute to PM1000 racking guide.. opinions/part #s

[UC]

I?m planning on putting together a comprehensive step by step webpage/guide to racking up a pair of PM1000 modules. I know there are a few helpful guides out there, but none of them really get into detailed specifics. I?d like to include descriptions of every part needed, as well as direct links to where these parts can be ordered online etc. I also plan on including very detailed easy to follow instructions. I?ve read every PM1000 post on just about every forum, and read all I could find online, and I just got my 2 modules in the mail from ebay. This is my first electronics project. After reading everything it still seems almost impossible, but I?m going to work through it and document everything along the way to make it easier for others in the future.

I know a lot of you guys have already racked these up, and I think it?s a great beginner?s DIY project. If any of you know of specific parts/links, or any other info and would like to contribute please reply. I?d appreciated it and I?m sure a lot of other people would as well. I?d like to include standard parts/prices, as well as cheap alternatives when possible.


PM1000 Manual/Schematics:
http://www2.yamaha.co.jp/manual/pdf/pa/english/mixers/PM1000E_1.pdf
http://www2.yamaha.co.jp/manual/pdf/pa/english/mixers/PM1000E_2.pdf

Weller Soldering station - $49.00
http://www.action-electronics.com/wewlc100.htm

Weller De-soldering pump - $19.20
http://www.hmcelectronics.com/cgi-bin/scripts/product/1980-0337

Enclosure - Par Metal Model: 10-19173x (19W x 17D x 3.5H) - 10- $63.50
http://www.par-metal.com/plist.htm
Cheaper Alternative ? old cheap rack gear on Ebay to gut

Power Supply
Power One Model: HB48-0.5-A
Digikey Part No: 179-2034-ND
48VDC / 0.5 Amp Linear Power supply
http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?Ref=184&Row=432623&Site=US
Diodes

Small PCB to mount PSU step down diodes

Wires

XLR in

XLR out

1/4" balanced out

1/4" in ?

Output transformer

Phantom power switch

Phase switch

Power switch

Caps
Panasonic SE caps?

LED

 

[digitaldrummer]

I'm also waist-deep in a PM-1000 racking project. I put up this web page to keep a log of what I'm doing, and hopefully post some pictures. Maybe help others? It's a bit thin today, but I hope to add more including the elusive BOM that everyone needs yet nobody seems to post...

http://www.digitaldrummer.net/pm1000.htm

I scavenged some old 2U Ethernet switch chassis that I will be slapping on a 2U alum cover plate. I am not cutting down the PM-1000's, but instead will completely remove the pots and remount them in this panel.

(same thing posted over at tapeop, gearslutz...)

Mike

 

[Emperor-TK]

Regarding output Xformers: I racked three modules, two with Edcor WSM600/600 and one with no transformer (unbalanced of course). The Edcors seem to roll off some high end and generally negatively affect the sound. Dull, lifeless, and smeary are all words that come to mind (relative to the transformerless output). I intend to run a frequency sweep in the future to double check my ears regarding the roll-off. I tried different modules with and without the transformer and heard the same thing on each.

If you are looking to save some cash on the outputs, I recommend just going unbalanced and to avoid the Edcors.

 

[Milkmansound]

how do people go about doing this?

if I wanted to use a chassis from something - and it already had holes in it - can you fill them and drill into the thing again?

I feel like you can, and that people here do (behringer cybermix?) - I want to know how.

 

[jeroddumas]

If I reuse chassis' I order a new front panel.

 

[digitaldrummer]

I ordered a 2U front panel (they are fairly thick) from Redco and just screwed it to the front of the old Ethernet switch chassis (which I gutted). I then took some scraps of sheet aluminum and covered the largest holes--it doesn't have to be airtight, and in fact you really don't want that. Redco (and others) have all sizes and they are WAY cheaper than getting the entire chassis/box.

By the way, with the front panel method, you can use any chassis that is less than 17" wide--it doesn't have to be rack mountable, because once you screw the front panel to it, it IS rack-mountable. In fact, my chassis is not a true 2U tall either. I just aligned the bottom edge with the front panel, and there is about a 1/4" lip on the top now (but who cares--it doesn't show in the rack).

Mike

 

[idylldon]

Just an info point. I measured the current draw on one strip and came up with 44 mA. They don't seem to draw much at all.

Cheers,
--
Don

 

[digitaldrummer]

also, check out the prices on these power supplies...

http://jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=213701&pa=213701PS

48VDC/1A

this is what I'm using.

Mike

 

[darnell]

[quote author="digitaldrummer"]
By the way, with the front panel method, you can use any chassis that is less than 17" wide--it doesn't have to be rack mountable, because once you screw the front panel to it, it IS rack-mountable. In fact, my chassis is not a true 2U tall either. I just aligned the bottom edge with the front panel, and there is about a 1/4" lip on the top now (but who cares--it doesn't show in the rack).

Mike[/quote]

I just found a Peavey 10 band EQ that someone tossed in a snowbank in front of their house. 3u and ready for butchering!!

I have had my panels forever. It's high time I finish this project.

Great thread, guys.

Daryl.

 

[ioaudio]

[quote author="digitaldrummer"]also, check out the prices on these power supplies...

http://jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=213701&pa=213701PS

48VDC/1A

this is what I'm using.

Mike[/quote]

Ripple & noise: 100mV p-p

 

[digitaldrummer]

!! HAPPY BIRTHDAY to my PM-1000's !!

http://www.digitaldrummer.net/pm1000/front.jpg

I finally got my 2 PM-1000's racked and operational. See link for the whole story...

http://www.digitaldrummer.net/pm1000.htm

Mike

 

[tubejay]

Looks great Mike!

I like the added touch of a fan too!

 

[digitaldrummer]

Hey thanks... but if you read closely, the fan is actually non-operational. I left it there to mainly fill the hole, but figured if I needed it later, its already there and just a matter of hooking up (of course I'll have to find +12V...).

Mike

 

[digitaldrummer]

As promised - BOM is now posted too.

http://www.digitaldrummer.net/pm1000.htm

Good Luck!

Mike