Guest hans-erik Posted February 3, 2008 Report Share Posted February 3, 2008 i recently have rebuild my Acoustic Research A-04 amplifier and in the manual they speak of "bias adjustments"measuring between tp3 - tp1 and tp2 - tp4 and making adjustments in volts .but i can not find the measuring points on the board .I want the amp to be working perfectly , i use the amp to drive my AR3a's . i restored the speakers with the restoring manual found on The classic Speaker Page , works perfectly for me .can anyone help me outhifiengine_ar_a_04.pdf Link to comment Share on other sites More sharing options...
dynaco_dan Posted February 5, 2008 Report Share Posted February 5, 2008 i recently have rebuild my Acoustic Research A-04 amplifier and in the manual they speak of "bias adjustments"measuring between tp3 - tp1 and tp2 - tp4 and making adjustments in volts .but i can not find the measuring points on the board .I want the amp to be working perfectly , i use the amp to drive my AR3a's . i restored the speakers with the restoring manual found on The classic Speaker Page , works perfectly for me .can anyone help me outHi there;Usually you will find, printed in white letters and numbers, on the component side of the circuit board, the test point markings. Link to comment Share on other sites More sharing options...
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