ok.. well.. i cant seem to located the proper tool to remove the extra heatsink so i can read the number on the fets so im gonna assume that q4 thru q12 are the power supply fets. and not knowing which leg is the first one...
from left to right voltage is the same on all of them
1: 2.82v
2:11.91v
3: nothing
from left to right voltage is the same on all of them
1: 2.82v
2:11.91v
3: nothing
I don't work on many xtant amps but I thought that all used balanced inputs and had the non-bridging speaker terminals connected to the amp's main ground. I don't have a 3300 here so I can't confirm this. Maybe someone else here can check to see if they're supposed to be connected to the main ground.
not sure if this helps... taken from owners manual
Balanced / Floating Input: All “x” Series amplifiers offer input docking
ports which accept the optional Balanced Line Module (BLM-1). When added to
the input stage, this circuitry helps to eliminate “system noise” associated with
“ground-loops”. ive just got jumpers on those ports
i think the x and c are supposed to be the same amp???
i click on the link for c version but comes up with x and it looks the same..
also i completely disconnected the amp an brought it inside.. its way to cold to stand out there for to long
took those same readings again an got yet a diff reading??
left front
+ term nothing bridged term
- term 47.6
right front
+ term 47.6
- term nothing bridged term
same reading with the passive channels
mono channel
+ term nothing
- term 47.6
Balanced / Floating Input: All “x” Series amplifiers offer input docking
ports which accept the optional Balanced Line Module (BLM-1). When added to
the input stage, this circuitry helps to eliminate “system noise” associated with
“ground-loops”. ive just got jumpers on those ports
i think the x and c are supposed to be the same amp???
i click on the link for c version but comes up with x and it looks the same..
also i completely disconnected the amp an brought it inside.. its way to cold to stand out there for to long
took those same readings again an got yet a diff reading??
left front
+ term nothing bridged term
- term 47.6
right front
+ term 47.6
- term nothing bridged term
same reading with the passive channels
mono channel
+ term nothing
- term 47.6
on the ACV 200 setting it read 27.6
an i'm not sure about the power supply... i've been playing with a atx computer power supply converting it to a bench one... of sorts... rated at 12v 20amps.. but i'm not sure about it yet.
i've tried running stuff of pc psu before but always just shut down. the article i'm reading says something about adding some resistors to it to create a load. and that's supposed to fix it i guess..
an i'm not sure about the power supply... i've been playing with a atx computer power supply converting it to a bench one... of sorts... rated at 12v 20amps.. but i'm not sure about it yet.
i've tried running stuff of pc psu before but always just shut down. the article i'm reading says something about adding some resistors to it to create a load. and that's supposed to fix it i guess..
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Some meters won't read AC mixed with DC. Yours is one of those meters. Do you have another meter or can you borrow one (Fluke preferred)?
Sometimes, the start-up surge shuts down computer power supplies.
I've read that some supplies need a load to power up but I've never seen one that did and I've tested a lot of supplies.
Sometimes, the start-up surge shuts down computer power supplies.
I've read that some supplies need a load to power up but I've never seen one that did and I've tested a lot of supplies.
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