Quote:
Originally Posted by ccschua /img/forum/go_quote.gif
I would like to use zero for preamp only. I have been waiting for this mod. but I am totally noob in this, almost.
Bypass job
For the lazy people who don't want to install tubes - the easy SNIPIT bypass job is to:
1. Remove the existing RCA sockets and install the proper Gucci jewellery.
> If I use it for DAC section, can I ignore this.
2. Lift the MINUS leg of 1st and 3rd decoupling capacitor - see picture of four Silmic caps in one row. (can be 2nd and 4th as well).
> How to know 1,3 or 2nd and 4th. also how to know if its Minus or Plus.
3. Wire the lifted minus leg to the RCA
> To which pin ? if used for DAC section, can i ignore this.
4. Don't forget to add ground to the RCA's
again for DAC section, should I ignore this.
5. Remove opamp from sockets.
> ok just remove.
6. If unused - remove the Headphone section altogether.
> I will remove this.
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I've been looking at that for close to a month and still not confident of the necessary equipment and steps to perform it. Hope some one can help us out, especially on the caps. Some folks here have done it so would appreciate some advice.
Just for clarification, we're not going for the tube
As far as my understanding goes:
1. The RCA is the only output in the pre-amp role. You have to replace + upgrade it. However, what are good sockets ?
2. Judging from the 3rd pic on the Lampization mod page, the shaded area where one of the legs of the caps land is the MINUS. It doesn't really matter which way you look at the caps (left to right or right to left), just make sure the caps chosen are ALTERNATE.
3. Wire MINUS leg to the RCA Signal Pin. Question is , which is the LEFT and RIGHT channel ?
4. Question is , wire to which GROUND on the pcb?
5/6. I'm looking to keep the headphone section so that means going by the "traditional upgrades" of the 2+1 opamps.
There are more instructions on the page actually:
1. The "treble killing brown 220p caps" are to be removed. Or should they be upgraded instead ?
2. "tantalum caps are ... added in parallel to the electrolytes which power up the DAC and the receiver"
Whoa... this kinda means we'll have to remove board and add to the underside ?
3. "four critical caps to be upgraded - power to the DAC and receiver."
Any good recommendations for what kind of caps be good ?
For refererence, the page again :
Lampization Mod