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auto on compatibility

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Glenlivet

Newbie 50+

Posts: 96

Joined: Tue Jan 04, 2011 9:18 pm

Location: Hope, B.C. Canada

Post Thu Mar 31, 2011 5:28 pm

auto on compatibility

Hey, does anyone know whether the TGP-5 can be used to power up a PM1.5a?

The PM1.5a is being used in a bi-amp setup, on the low end and driving Infinity K9's. (That is, it will until fate and great good fortune shall direct me to a 600-2 that I can acquire to do that! :D )

It is a PIA switching all kinds of equipment on and off each time I power up the sound system (as I'm sure we all appreciate) and I'm rigging a power bar to activate through a 40 amp (at 12 volt) relay to be turned on by the 12 volt output on the TGP-5 when it powers up, the way that processor turns on its companion TGP 400-7.
I don't want to run the PM1.5a on this relay as well though, due to the greater current needs of a power amp and in fear that this might overload the relay. I'd like to use the Carver power up system for the PM1.5a, but the problem comes with labeling and what it really means.

The TGP-5 output is logically indicated to be 12 volts and the terminals are clearly marked, 12 volts positive and negative, not to draw more than 500 Ma total.(The TGP 400-7 only draws 20 Ma.)

The PM1.5a however has low voltage terminals on the back for it's start up 'sequencer' that are marked 'receive' and 'send'! (huh?) I have no manual for the PM1.5a.
What does receive and send mean?
Are these things compatible and can the PM1.5a be switched on by the TGP-5's 12 volt output?

Thanks
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BillD

User avatar

(pair of) SILVER-7 TUBE AMPs

Posts: 7295

Joined: Wed Jun 06, 2007 8:29 pm

Location: The west's most mid-western town, Scottsdale, Arizona

Post Thu Mar 31, 2011 5:47 pm

Re: auto on compatibility

On the PM-1.5, the positive terminal takes +6 to +22 Vdc and 2 to 4 mA to the green (receive). The send generates a signal after the one triggered powers up to sequence the next in a rack of these puppies.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
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Glenlivet

Newbie 50+

Posts: 96

Joined: Tue Jan 04, 2011 9:18 pm

Location: Hope, B.C. Canada

Post Thu Mar 31, 2011 6:47 pm

Re: auto on compatibility

The 12v. + to 'receive' and the negative... to chassis ground?
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BillD

User avatar

(pair of) SILVER-7 TUBE AMPs

Posts: 7295

Joined: Wed Jun 06, 2007 8:29 pm

Location: The west's most mid-western town, Scottsdale, Arizona

Post Thu Mar 31, 2011 7:54 pm

Re: auto on compatibility

From the PM-1.5 Service manual

PM-1.5 startup.jpg
PM-1.5 startup.jpg (122.58 KiB) Viewed 421 times
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
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Glenlivet

Newbie 50+

Posts: 96

Joined: Tue Jan 04, 2011 9:18 pm

Location: Hope, B.C. Canada

Post Thu Mar 31, 2011 9:39 pm

Re: auto on compatibility

Thanks for posting that! Should be straight forward from here on. \:D/
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angelod307

SILVER-7 TUBE AMP

Posts: 2724

Joined: Sat Jun 06, 2009 10:56 pm

Location: manning, sc

Post Thu Mar 31, 2011 10:51 pm

Re: auto on compatibility

so, if you use one of these, granted you know how to wire it up, it will turn on anything with the 12v output of the tgp. as a matter of fact, they also have a 120v version that will do it with pre's or what not that have a switched power output. granted that you will need a project box as well unless there is room in the amp for the relay.

http://www.mouser.com/ProductDetail/Omr ... vWDg%3d%3d
CarverFest: I just go for the arts and crafts
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Glenlivet

Newbie 50+

Posts: 96

Joined: Tue Jan 04, 2011 9:18 pm

Location: Hope, B.C. Canada

Post Thu Mar 31, 2011 11:27 pm

Re: auto on compatibility

Thanks, I have all the hardware already. :D It's just a couple hours building it. The TGP-5 will power up everything when switched on either with the panel button or the remote. (except the turntable, media player, or TV)

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