Rare Vintage Onkyo M - 5090 Power Amplifier - Serviced




Item History & Price

Information:
Reference Number: Avaluer:567416Model: M-5090
Brand: OnkyoUPC: Does not apply
Original Description:
VINTAGE ONKYO M-5090 POWER AMPLIFIER
Serviced - Working Great
Good Condition - Some Signs of Age and Missing Tray Door - See Pictures
Audiophile Sound Quality
Hard to Find
Local Pickup Available
Service Performed:
All amplifier drive PC boards inspected and solder joints re-flowed as neededAny resistors showings signs of heat replaced with exact proper valuesOutput transistors removed, new mica insulators installed and re-coated with heat sink compoundAll output tr...ansistors re-torqued to heat sink assemblies DC bias current set to factory specPower supply PC board connections checked and repaired as necessaryAll PC board to chassis grounds tightenedFull spec check, use, and listening test





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