How to repair full-bridge clone car amplifiers - Full step-by-step guide
Автор: barevids
Загружено: 2024-02-23
Просмотров: 26194
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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