Author Topic: Sunfire Amp LED Modification  (Read 9102 times)

Offline TNRabbit

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Re: Sunfire Amp LED Modification
« Reply #15 on: October 04, 2011, 04:43:38 PM »
Perhaps Anders can tell me how this looks, on a scale of 1-10~


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Offline MacGeek

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Re: Sunfire Amp LED Modification
« Reply #16 on: October 04, 2011, 07:18:21 PM »
The meters do light in blue.  The bulbs are clear, with a blue filter between the meter face and the glass front panel.  My interest is in extending bulb life and reducing heat.  I'll need to check the bulb count and voltage.
MAC C-46 pre, MQ 108 eq, MC 352 amps (2), MR 78 tuner, MCD 500 CD, MPI-4 scope, LS 352 speakers, Sony HDR-F1HD AM/FM/HD tuner, Denon DRS 810 cassette, Denon CDR-W1500 CD recorder, Music Hall MMF-9 w/B&O MMC2, Revox A-77 R to R.

Offline mbskeam

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Re: Sunfire Amp LED Modification
« Reply #17 on: October 04, 2011, 10:41:58 PM »
okay, I get it now.... :D

you could do this color.....



at night....



purple the new blue..... ;)
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Offline TNRabbit

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Re: Sunfire Amp LED Modification
« Reply #18 on: October 05, 2011, 04:24:03 AM »
Mike, those are ultraviolet, right?  I'm wondering what that would look like in my Sunfire.......DAMN YOU!!! >:D





 :P :P :P
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Offline TNRabbit

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Re: Sunfire Amp LED Modification
« Reply #19 on: October 05, 2011, 04:26:35 AM »
Geez, Mike; you have enough stuff in the background there to trade for a new vehicle...

I LOVE your copper rack!
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Sunfire Theater Grand-IV Processor/Sunfire Cinema Seven Signature Amp
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Offline mbskeam

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Re: Sunfire Amp LED Modification
« Reply #20 on: October 05, 2011, 04:01:47 PM »
Quote
Mike, those are ultraviolet

yes, got them at ratshack
mbskeam

http://photobucket.com/albums/a96/mbskeam/

life is like flowers hanging from RaZer wire

Offline MacGeek

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Re: Sunfire Amp LED Modification
« Reply #21 on: October 05, 2011, 07:41:45 PM »
The meters are indeed blue.  MAC uses a blue filter between the front panel and meter face.  The bulbs are clear.  I'm just lookin' to decrease heat and extend bulb life
MAC C-46 pre, MQ 108 eq, MC 352 amps (2), MR 78 tuner, MCD 500 CD, MPI-4 scope, LS 352 speakers, Sony HDR-F1HD AM/FM/HD tuner, Denon DRS 810 cassette, Denon CDR-W1500 CD recorder, Music Hall MMF-9 w/B&O MMC2, Revox A-77 R to R.

Offline TNRabbit

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Re: Sunfire Amp LED Modification
« Reply #22 on: October 19, 2011, 11:20:20 AM »
The meters do light in blue.  The bulbs are clear, with a blue filter between the meter face and the glass front panel.  My interest is in extending bulb life and reducing heat.  I'll need to check the bulb count and voltage.

So, were you able to find any details?
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Re: Sunfire Amp LED Modification
« Reply #23 on: October 20, 2011, 05:18:13 PM »
Been on the road and haven't had time to pull the amps (well over 100lbs each) form the rack, pop the covers and measure the voltage.
MAC C-46 pre, MQ 108 eq, MC 352 amps (2), MR 78 tuner, MCD 500 CD, MPI-4 scope, LS 352 speakers, Sony HDR-F1HD AM/FM/HD tuner, Denon DRS 810 cassette, Denon CDR-W1500 CD recorder, Music Hall MMF-9 w/B&O MMC2, Revox A-77 R to R.

Offline b52bgz

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Re: Sunfire Amp LED Modification
« Reply #24 on: December 28, 2013, 07:17:08 AM »
(New member, old carver user.) I know, this an old post but.... I have a Cinema Grand 200 5. My lamp burned out (surprise...) I thought I'd do this LED mod. I opened of the box and there was the lamp on the pcb but there was also a fairly hefty resistor (160ohm x 2w) in series with the lamp. One of the incoming leads was connected at E1 and the other was connected in common with one resistor lead (rather than at E2), the lamp was then connected to the 'normal' points. I removed the lamp and resistor. Put my fluke to the incoming leads and got .985vdc. Huh. Not anywhere close to what others have posted. Switched the fluke to AC and got 18v! At this point, I stopped to do some head scratching. Decided to button it back up and seek assistance.

Anyone seen this arrangement before?
Wadia 830-->Oppo BDP105
Pass Labs X150-->Cinema Grand 200.5
Anthem AVM20
Martin Logan SL3
Martin Logan Encore
Def Tech BP2002

Mikesp1

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Re: Sunfire Amp LED Modification
« Reply #25 on: January 13, 2016, 04:41:21 PM »
I can confirm it is 18v ac on the Cinema Grand 200 X 5.

I installed a led with a resistor and diode with great succes.

Offline OldiesButGoodies

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Re: Sunfire Amp LED Modification
« Reply #26 on: January 14, 2016, 04:31:07 PM »
I can confirm it is 18v ac on the Cinema Grand 200 X 5.

I installed a led with a resistor and diode with great succes.

Same here on 405 x 5. Get a few resistors that will allow you to see the range of intensity available from the diodes so you can tweak to taste.

Spkr: VMPS RM40
Pre: McCormack RLD-1, Rotel 970BX Phono
Amps: Channel Islands Audio D-200 MkII 
Phono: VPI Aries 1,  Van de Hul Frog
CD: Oppo BDP-83 DAC: Young DSD DAC
Cass: Tascam 122MkII
R2R: Revox B77
Sub: Rhythmik FV 15HP

Offline ataudio

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Re: Sunfire Amp LED Modification
« Reply #27 on: January 14, 2016, 08:43:39 PM »
Ummmm....I'm confused.  18 volts "AC".   Not DC....so does the LED flicker? It has too...must be at an
Imperceptible rate.  An LED is a diode so it does rectify...with the added by product of light...I guess.

Offline OldiesButGoodies

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Re: Sunfire Amp LED Modification
« Reply #28 on: August 12, 2016, 07:42:58 PM »
guess it depends how much you want to see  (not sure this joules meter tells you much besides "hey,  I am on".  when I had the big-ribbon Carver Amazings connected [they are set aside for now] the joule meter danced at volume,  not so much with the easier to drive Tritons). in my application (home theater) I wanted it dimly lit,  so I chose the led and resistor accordingly.  if you want more light just adjust what led and resistor value you use. 

Untitled by Jose Sifontes, on Flickr

Spkr: VMPS RM40
Pre: McCormack RLD-1, Rotel 970BX Phono
Amps: Channel Islands Audio D-200 MkII 
Phono: VPI Aries 1,  Van de Hul Frog
CD: Oppo BDP-83 DAC: Young DSD DAC
Cass: Tascam 122MkII
R2R: Revox B77
Sub: Rhythmik FV 15HP

 

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