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Does anyone have any thoughts on installing a simple toggle switch on an MSB Link III DAC to turn the front panel display LEDs off?I've heard negative things about LEDs in audio gear, and the lights can be annoying when listening in the dark (especially the bright blue LED tuned to the mind control wavelength).
I'm thinking I can just splice into the ground wire in the ribbon cable going to the display PCB, and wire a switch on the back panel. Any thoughts / recommendations / warnings?
Thanks!
Nate
Follow Ups:
I seem to be the one spreading those ugly rumors about LEDs. Try it yourself. Just unplug the cable from the computer type cable on the board that goes to the LEDs and listen. If you do not hear any difference, then put it back. You can break the ground connection with a front panel mounted switch that would allow turning them on and off.Ric Schultz
i know what you mean about those freakin bright leds especially the blue !!!heres what i did.............
cut very small squares from the frosted-type scotch cellophane tape and applied them directly to the leds !
the blue required a few layers to tone it down but now they are all lit but very nicely muted and you dont see the tape until you get right on top of the piece.
I personally don't think it really makes any difference...others may disagree. The LED's are quite a distance from the PCB.I would save your energy and modify the unit with new op-amps, signal path resistors and poly bypass caps...just my $0.02.
Dan W.
Dan, thanks. I've seen your mod page and am getting up the nerve to pull out the soldering iron and have at it. Which of your mods would you say gives the biggest bang for the effort -- the op amps?Nate
The op-amps make a HUGE impact, as do the signal path resistors. The input 1kohm resistors,the output 100-220ohm resistors, and the 20kohm feedback resistors should all be upgraded to Caddock or Vishay's of the same value, with the exception of the 100-220ohm (depending on which model of Link DAC) should be replaced with 75ohm resistors. I would also recommend replacing the digital input resistor (100ohm) with a Caddock/Vishay 75ohm. You can also snip out the resistors at the analog outs and the two 1000pf caps beside the white switching relay...I found it sounded better with those out of the circuit.Good luck and take it slow, the board is fragile.
Dan W.
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