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Louie, Technician
Category: Consumer Electronics
Satisfied Customers: 12459
Experience:  25+ yrs. experience in the field and 5+ yrs. online, down to component level.
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My 2000 dollar Integra 70.1 just went into protection

Customer Question

Hello. My 2000 dollar Integra 70.1 just went into protection mode and was planning on a DIY fix if you would be so kind as to walk me through the careful process.
Submitted: 2 years ago.
Category: Consumer Electronics
Expert:  Louie replied 2 years ago.
Hi and welcome to JustAnswer,Thank you for the requested question and your patience. Should you still need assistance for information purposes only...Initially, have to ask; do you have access to and familiar with a multimeter and even a soldering iron? Equally important, could you make use of the schematic diagrams?
Customer: replied 2 years ago.
Yes. I do. What would I have to go to get this preamp out of protection mode. Every time I turn it on, the main blue light turns on for a split second and then shuts off and the standby red light starts flashing. A speaker cable crossing over is the whole reason behind this mess
Expert:  Louie replied 2 years ago.
The described "... speaker cable crossing over..." is very significant as the system was loaded with a short circuit on 1 of its output. Which output terminals were the shorted speaker wires connected to please? This information would give us an idea on which transistors to de-solder and check out-of-circuit.
Customer: replied 2 years ago.
The center speaker. I have banana plug connectors screwed onto the tips of the speaker wire. I disconnected the center speaker and the banana plug inputs positive and negative touched eachother with the pre amp plugged in . What a moron, right?
Expert:  Louie replied 2 years ago.
I understand...and accidents happen. Still, proposed preliminary tests on center channels: • P6052 & P6062 pair (TTC0002 & TTA0002 respectively) (most likely);• Q6032, Q6102, Q6042 & Q6112 (likely);• Q6012 & Q6022 (least likely). Please post back results / observations of the above once tested out-of-circuit. A friendly suggestion; take lots of pictures to help identify which part goes where and how oriented when putting back.

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