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Technics SA-DA10 Receiver Transistors - Solutions 10
be happy to help you figure this one out. First, let's make sure that the output channel is blown. Have you checked the output transistors on the heat sink? Are they shorted? This is the first thing to check for this failure. If you have verified that the channel more...
Technics SA-DA10 Receiver - Troubleshooting
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one side and +3.28v on the
other. Similarly R 145 measured +3.27 on one side and + 35.6v on the
other. I did check the output transistors a week or so ago. When I
compared the ohm readings one against the other they all were similar.
I assumed that they wouldn't all fail more...
Technics SA-DA10 Receiver - Troubleshooting
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I am telling you is correct. Reason 1 The receiver has a blown channel. This will require the replacement of many parts. The output transistors, supply resistors, driver transistors, and a capacitor in the driver circuit of the affected channel. It is usually the channel that is located closest more...
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you will not be able to repair this yourself. If you change the burnt resistors, they will most likely burn up again. The output transistors for one of the channels are also shorted. They must be replaced along with every other bad component. If you miss just one of more...
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are missing.
This would be dc voltages and the positive voltage must be equal to the
negative voltage ,if one is higher than the other, the regulator
transistors in the power supply maybe defective. The transformer can be
checked for AC voltage before the power supply.You know that the
secondary is good because the more...
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have checked the obvious with fuses and removing all speaker wires and checking operation. The unit will have a blown output transistor/array, possibly driver transistors, and fusible resistors, and diodes to that channel. The bias current will also need to be set up again once repairs are completed. There more...
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cause the reciever to overheat and shut off, maybe short out a channel. It pulls 2 times the amount of current thru the output transistors as 8 ohm speakers. Let me know if this helps you or if you need more help. more...
Technics SA-DA10 Receiver - Troubleshooting
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