Hi ll, I have a naim AV2 and want to see if I can re purpose an unused HiCap for the analogue board,
I have measured the four LM317T's in the AV2 and I believe they are feeding 2 x 5V and 2x 8V supplies (I was expecting the analogue board voltages to be higher ?)
The Hi-Cap is running 2 x 24V supplies, I have originally thought that I might be able to fit two Avondale TPR2's in the HiC-Cap then feed these to the two 8v points on the AV2 board after disconnecting the two 317's in the AV2. I can make up suitable cables and run an earth link to ground the AV2 to the HiCap as well
Any thoughts ?
I have measured the four LM317T's in the AV2 and I believe they are feeding 2 x 5V and 2x 8V supplies (I was expecting the analogue board voltages to be higher ?)
The Hi-Cap is running 2 x 24V supplies, I have originally thought that I might be able to fit two Avondale TPR2's in the HiC-Cap then feed these to the two 8v points on the AV2 board after disconnecting the two 317's in the AV2. I can make up suitable cables and run an earth link to ground the AV2 to the HiCap as well
Any thoughts ?
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Hello,
I do not understand the usefulness of this modification, which you seek to obtain.
In addition, you can change the value of the resistors of the LM317k modules of HI-CAP, to obtain the voltages of 5v and 8v
I also see that you should change the SLCE of your HICAP and the red tantalum(old HICAP....)
do not forget that in NAIM systems, it is the power supplies as well as the signal which is earthed .... so be careful.
Regards
I do not understand the usefulness of this modification, which you seek to obtain.
In addition, you can change the value of the resistors of the LM317k modules of HI-CAP, to obtain the voltages of 5v and 8v
I also see that you should change the SLCE of your HICAP and the red tantalum(old HICAP....)
do not forget that in NAIM systems, it is the power supplies as well as the signal which is earthed .... so be careful.
Regards
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You’re going to burn off a lot of power
If you have 24v coming out of the hi-cap regulators then you probably have about 28 volts or so going in. To now drop that to just 5v may be a big ask without good heatsinking on the LM317K regulators. If the current is low you might just get away with it. Not sure what sonic benefits your modification might bring.
If you have 24v coming out of the hi-cap regulators then you probably have about 28 volts or so going in. To now drop that to just 5v may be a big ask without good heatsinking on the LM317K regulators. If the current is low you might just get away with it. Not sure what sonic benefits your modification might bring.
