How to Repair a Pioneer RCA Pre-Out Preamplifier

Written by greyson ferguson
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How to Repair a Pioneer RCA Pre-Out Preamplifier
You can improve the audio signal produced by speakers with a preamplifier. (speakers image by Sergey Galushko from

Preamplifiers are audio devices used to receive the audio signal from outside audio receivers and send the information to connected speakers. The preamps are used to sweeten the signal produced by the original audio source, which is helpful when recording or producing live music. If, however, your Pioneer RCA pre-out preamlifier connection is not working and sending out the audio signal, you need to look over several of the hardware options in order to determine what is causing the issue.

Skill level:

Things you need

  • Replacement fuse
  • User manual
  • Compressed air

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  1. 1

    Check the RCA cable connection running from the Pioneer pre-out connection ports and any attached hardware. If the RCA cables are not completely inserted into the connection ports, the audio signal is never going to reach the speaker system.

  2. 2

    Disconnect the RCA audio cables and inspect the RCA pre-out port. If the port is dirty (typically from dust) you need to clean out the connection. When this connection is dirty your connected speakers are unable to receive a clean audio signal. Spray a few shots of compressed air into the connection ports to clean out the audio hookup.

  3. 3

    Replace the glass fuse, located on the rear of the Pioneer receiver. If the fuse is black, cracked or completely broken it is not going to send out audio signals. You can purchase replacement fuses from the same store from which you purchased the Pioneer receiver. Remove the current fuse and slide in the new hardware.

  4. 4

    Check the power connection for the other hardware attached to the Pioneer RCA pre-out. If these devices are not receiving an electrical current, the products are not going to produce an audio signal.

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