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11th April 2004, 12:41 AM
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diyAudio Member
Join Date: Apr 2003
Location: Sarnia, Ontario, Canada
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Linn LK-2(60) One Channel has Failed. Anyone familiar with this circuit design?
My amp's one channel has failed. Reading no DC Offset(-60 mV very close to the working channel), just very low level hiss/hum (like working channel when there is no signal).
I replaced all transistors & diodes including the Output devices (TIP35C & TIP36C) on the non-working channel but made no difference. All the DC voltages seem to be the same as the working channel as well. I understand that the protection circuitry consists of a couple transistors (A93 & A43) and a couple of caps that charge up when there is a fault. Is anyone familiar with this circuit? Thanks in advance! Dan
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