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How to deoxidize Onkyo TX-800 circuits

Introduction

Metals used in circuits can react with oxygen. It's a common and natural reaction and can cause connection problems, but the process is reversible with deoxidizing sprays which can improve the sound quality of your amplifier.

What you need

  1. How to deoxidize Onkyo TX-800 circuits, Disassembling Onkyo TX-800 Top case: step 1, image 1 of 3 How to deoxidize Onkyo TX-800 circuits, Disassembling Onkyo TX-800 Top case: step 1, image 2 of 3 How to deoxidize Onkyo TX-800 circuits, Disassembling Onkyo TX-800 Top case: step 1, image 3 of 3

    • Remove the two screws on both sides of the receiver. Keep these and the rest of the screws in a safe place.

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  2. How to deoxidize Onkyo TX-800 circuits: step 2, image 1 of 2 How to deoxidize Onkyo TX-800 circuits: step 2, image 2 of 2

    • Remove the top screw on the back panel.

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  4. How to deoxidize Onkyo TX-800 circuits: step 3, image 1 of 2 How to deoxidize Onkyo TX-800 circuits: step 3, image 2 of 2

    • Slide off the case to expose the internal components of the receiver.

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  5. How to deoxidize Onkyo TX-800 circuits, How to deoxidize Onkyo TX-800 circuits: step 4, image 1 of 1

    • Carefully wipe the circuit board and its components to remove any dust.

    • Failing to remove any dust before applying DeoxIT may cause the dust to get trapped on the components, increasing the risk of overheating.

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  6. How to deoxidize Onkyo TX-800 circuits: step 5, image 1 of 1

    • Lightly spray the circuit board with DeoxIT.

    • Take care to evenly coat the circuit board with DeoxIT. Excess liquid will dry slowly. If power is reapplied before it has completely dried, it can cause short-circuits and damage to the device.

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  7. How to deoxidize Onkyo TX-800 circuits: step 6, image 1 of 2 How to deoxidize Onkyo TX-800 circuits: step 6, image 2 of 2

    • Lightly spray the input and output connectors with DeoxIT on the inside of the back panel.

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Finish Line

2 other people completed this guide.

Author

with 7 other contributors

Kevin Barton

Member since: 04/13/10

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Team

Cal Poly, Team 27-92, Amido Spring 2010 Member of Cal Poly, Team 27-92, Amido Spring 2010

CPSU-AMIDO-S10S27G92

4 Members

7 Guides authored

2 Comments

As an electronic repair technician I would never advise spraying deoxit on a circuit board or removing dust with a papertowel. May I suggest using a can of compressed air to remove any dust inside the unit and focusing the use of contact cleaner on potentiometers, input/output jacks, sockets/plugs etc. Cleaning the top of the circuit board will do little to nothing to improve the performance or sound of your amplifier as you will simply be cleaning the top side of components that are physically soldered to pads on the other side of the PCB.

Muham - Reply

A soft long bristle brush

Michel Joseph Cardin - Reply

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