Hi guys, I am needing a little help with the T500-1bd. Amp powers up and I have a good signal on the PS Fets. and I am getting rail voltage (40.2) between the rectifiers. However; I do have some weird looking signals on the output of Q2014 and Q2015. The voltages on the third leg of 44h11's are 11.1, 11.1 and 6.3 and the 45H11 no voltage on any leg. Thanks in advance
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Perry R1019 and 1022 check good, they are in parallel correct? Reading 10ohms on two 20ohm resistors.
Perry I don't understand what happened, after i checked the resistors, and they did have the -17vdc on them. I checked the 45h11 and it has voltage now. Pin 3 has -5.2. Plus I have -2.4vdc across my speaker terminals.
Do you have rail-rail oscillation on the output transistors?
If so, is the amp producing audio at the speaker terminals?
If so, is the amp producing audio at the speaker terminals?
Read section 25 of the following page of the tutorial:
repair_tutorial\miscellaneousstuff\rockford\repairnotesrockford.htm
Do you have the same driver board as shown in that section?
repair_tutorial\miscellaneousstuff\rockford\repairnotesrockford.htm
Do you have the same driver board as shown in that section?
Pull the rectifiers and install a jumper wire as shown in that section. Don't use too much heat.
To take the rectifiers out of the circuit, desoldering and lifting the center terminal will be good enough.
To take the rectifiers out of the circuit, desoldering and lifting the center terminal will be good enough.
Reconnect the rectifiers and remove the jumper. MEasure the DC across the speaker terminals.
With the black probe measure the DC on the two points where the jumper was connected.
With the black probe measure the DC on the two points where the jumper was connected.
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