Power amp: Difference between revisions
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Dead power amps tend to output no audio at all and short out, tripping the cab's or [[supergun]]'s [[power supply]] protection. Crackling audio is most often a digital issue (contacts, cut traces...) and faint audio is often caused by aged/bad capacitors or broken volume pots. | Dead power amps tend to output no audio at all and short out, tripping the cab's or [[supergun]]'s [[power supply]] protection. Crackling audio is most often a digital issue (contacts, cut traces...) and faint audio is often caused by aged/bad capacitors or broken volume pots. | ||
* [[MV1A]]: Motorola MC13308T4. | |||
* [[MV1F]], [[MV1FZS]]: Hitachi HA13001. Stereo. 2x 5W in 4 ohms. Replacement: ? | * [[MV1F]], [[MV1FZS]]: Hitachi HA13001. Stereo. 2x 5W in 4 ohms. Replacement: ? | ||
* [[MV4]], [[MV6]]: Probably HA13001. | * [[MV4]], [[MV6]]: Probably HA13001. | ||
Latest revision as of 19:16, 9 April 2018
Most arcade cabs don't have embedded audio amps. Systems have to amplify their audio output theirselves to drive the cab's speaker(s).
These components can die from overheating or voltage surges on the 12V line.
Dead power amps tend to output no audio at all and short out, tripping the cab's or supergun's power supply protection. Crackling audio is most often a digital issue (contacts, cut traces...) and faint audio is often caused by aged/bad capacitors or broken volume pots.