Simplex How to Troubleshoot Amplifier Trouble

Goal How to Troubleshoot 2001 2120 Amplifier Trouble 2001 2120 Audio 2001 6062 Single Audio Power Amplifier 635 352 2001 6066 Single with 4 Place Card Rack Audio Power Amplifier 635 355 2001 6063 Dual Audio Power Amplifier 635 353 562 137 Power Supply Board 562 159 Amplifier Board 562 546 Amplifier Board 562 125 Amplifier Monitor Board Amplifier Monitor Trouble Amplifier Trouble Amplifier Trouble LED is on System Trouble Need module information The 2001 and 2120 are the same audio system The 562 125 Amplifier Monitor Board has a Trouble lamp depending on the trouble the lamp may or not be on The lamp can be burned out also The trouble from the amplifier can be caused from the audio or power input to the Amplifier Board the Transformer the Amplifier Board output TB2 the amplifier Power Supply and the Amplifier Board Board 565 159 565 546 Inputs TB1 No Input No Input 24VDC power input from 562 137 Power Supply Board TB1 3 thru P2 2 0V power input from 562 137 Power Supply Board TB1 7 thru P2 4 0V Audio input from Pre Amp or Audio Riser step down transformer Audio Input 350mVAC from Pre Amp or less than 1VAC from Audio Riser step down Board 565 159 565 546 Output TB2 11VAC Brown wire to Transformer Primary input Black wire to Transformer Primary input Secondary Output 25VAC wire to 562 125 Amplifier Monitor Board P1 1 wire to 562 125 Amplifier Monitor Board P1 4 Supply Board 562 137 system trouble 24VDC Output on TB1 1 to 562 125 Amplifier Monitor P2 12 Monitor Board 562 125