IT-6000 Update: This particular amp was manufactured 12/28/2004 and is serial number 8000492671. It doesn't appear to have had previous service and does not have the BCA drive board with red capacitors for C526 and C527.
After I replaced a bad FET (Q1007) I just attempted to start the amplifier with the Front End modules removed, as in the manual. However, Q1004 exploded after a few seconds and the blast wave was such that my ears were ringing for several minutes afterward. I think it should be recommended that hearing protection be worn when an amplifier is serviced where there is a fair chance that semiconductors may detonate.
I think it is reasonable to substitute 200 ohm 25 watt resistors for the toroids while troubleshooting, as this will prevent excessive current and allow non-destructive testing.
AC4AQMember Since 01 Oct 2012
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17 Apr 2014 - 08:12
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