Modification Pioneer UDP LX800, is this sensible ?
 

I am talking about audio grade fuses modification.
Ok, here is the basic circuit block of it. Let’s forget
Structural difference to Lx500 for a while. LX800
Has extra linear power supply besides switching power supply which remain exists. This extra LPS feeds one extra board that LX500 doesn’t have, the high grade DAC and analog output board.
Total there are 4 fuses in this Lx800. One on switching power supply board which feed power to digital circuit , video and audio including HDMI stuffs.
The other 3 fuses are on that extra analog output board.
One high end shop asking customer to replace all
4 fuses for the best picture and sound improvement
During movie playing out of HDMI outputs.
Besides, there is Transport Mode on LX800 which
When active, cut power totally to that extra LPS and analog output board.
I don’t think this is sensible to pay for extra 3 fuses
On that analog board. And we should engage Transport Mode anyway during movies.
Shop owner said there is really different replacing all 4 fuses. Even when using only HDMI output.
Any idea? The attachments show fuses no. 1-2-3 on
Analog output board. And only one for switching PS board that feed HDMI circuit.
Attachment 61026Attachment 61027