How to repair full-bridge clone car amplifiers - Full step-by-step guide
6-pin Output drive buffers: ZXGD3006E6 (or many compatible alternatives), some recent boards use UCC27511 so check pin location for GND and VCC Output drive IC: IRS20957S Output mosfets for rails under 190v: IRFB4227 Output mosfets for rails under 140v: IRFB4115 Power supply mosfets: IRF1405, IRF1404, IRFB3077, IRFB7530, or any similar Power supply driver: IR4427 (or many compatible alternatives) 5-pin Boost Converter: LMR62014XMFE (or compatible alternative) Preamp opamps: TL074C (or alternative) "C4" comparator: LM319 Didoes parallel with output gate resistors: 1N4148 Diodes across gate-source: 15V zener 0:00 Tools required 3:17 How the circuit works 10:10 Power supply repair 18:59 Output section repair 54:53 Powering up safely after repair 1:04:05 Full rail testing
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