I this video i am repairing a vintage FISHER CA-39A solid-state amplifier. After troubleshooting I replaced the hybrid amplifier IC STK4191-II (ECG1316 equiv.), a few capacitors and a two 4 amp fuses. Some dummy put a 32V 25A automotive fuse in where a AGC-4A should have been. Bad speaker and the wrong fuse causes the amp to short out. Used an ECG replacement manual to lookup the internal schematic of the chip and used the ohmmeter to find the short. I fixed the unit and it does sound very good.
Friday, February 15, 2013
FISHER CA-39A Integrated Stereo Amplifier Repair-Part 1
FISHER CA-39A Integrated Stereo Amplifier Repair-Part 1 Tube. Duration : 9.93 Mins.
I this video i am repairing a vintage FISHER CA-39A solid-state amplifier. After troubleshooting I replaced the hybrid amplifier IC STK4191-II (ECG1316 equiv.), a few capacitors and a two 4 amp fuses. Some dummy put a 32V 25A automotive fuse in where a AGC-4A should have been. Bad speaker and the wrong fuse causes the amp to short out. Used an ECG replacement manual to lookup the internal schematic of the chip and used the ohmmeter to find the short. I fixed the unit and it does sound very good.
I this video i am repairing a vintage FISHER CA-39A solid-state amplifier. After troubleshooting I replaced the hybrid amplifier IC STK4191-II (ECG1316 equiv.), a few capacitors and a two 4 amp fuses. Some dummy put a 32V 25A automotive fuse in where a AGC-4A should have been. Bad speaker and the wrong fuse causes the amp to short out. Used an ECG replacement manual to lookup the internal schematic of the chip and used the ohmmeter to find the short. I fixed the unit and it does sound very good.
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