Pioneer SX-990 - Repair & Restoration - 3 of 3

This is the final video of the three-video series on the Pioneer SX-990 which was released in 1970. In this video, we replace electrolytic capacitors on the FM IF board, the FM Multiplex board, the AM IF board, the control amp board, and the head amp board. We will also clean up the exterior and run some THD tests.

For those of you interested, here is a link to a copy of the spreadsheet used in this video minus the order number columns filled in. Feel free to take it and improve upon it.

https://www.dropbox.com/scl/fi/jvbx7w...

TEST / MEASURING EQUIPMENT
👉 Panasonic VP7725B Audio Analyzer: https://tinyurl.com/5n6uz8th
👉 HP 8903B Audio Analyzer: https://tinyurl.com/wdcc4cbc
👉 HP 8904A Multifunction Synthesizer: https://tinyurl.com/5n86buay
👉 HP 5342A Microwave Frequency Counter: https://tinyurl.com/fujwchy5
👉 RIGOL DHO924S Oscilloscope: https://tinyurl.com/29s6hvhp
👉 OWON HDS2202S Oscilloscope: https://tinyurl.com/2ewkfw6m
👉 Sencore SC3100 Waveform & Circuit Analyzer: https://tinyurl.com/4ava9u43
👉 Sencore PR570 Variable Isolation Transformer: https://tinyurl.com/3sbnjmz4
👉 Sencore PA81 Audio Analyzer: https://tinyurl.com/4d9aw98c
👉 Sencore LC102 Capacitor-Inductor Analyzer: https://tinyurl.com/yw9d6rr6
👉 Junktek PSG9080 Arbitrary Waveform Generator: https://tinyurl.com/28k6p46z
👉 Fluke PRO3900F60 Probe: https://tinyurl.com/3682n2zm
👉 Fluke 45 Dual Display Multimeter: https://tinyurl.com/yc84znft
👉 Fluke 189 Multimeter: https://tinyurl.com/bdfw73tm
👉 Fluke 85 Multimeter
👉 Peak Atlas DCA75 Pro: https://tinyurl.com/2xwz9n3x
👉 DER EE DE-5000 LCR Meter: https://tinyurl.com/zery8b8y
👉 Capacitor Wizard: https://tinyurl.com/4j54wdcv
👉 EICO 145 Signal Tracer: https://tinyurl.com/yjwfp5na

SOLDERING / DESOLDERING
👉 Hakko FR-301 Desoldering Tool: https://tinyurl.com/4uas2v3w
👉 Hakko FX-9701 Soldering Handpiece: https://tinyurl.com/yapdkbp9
👉 Hakko FX-972 Dual Port Station: https://tinyurl.com/356b4aza
👉 Hakko T39-D24 Chisel Tip: https://tinyurl.com/bdd6xta4
👉 Hakko T39-BC2040 Bevel Tip: https://tinyurl.com/cbxmkenj
👉 Hakko 852 SMD Hot Air Rework System: https://tinyurl.com/3rntzwrw

POWER SUPPLIES
👉 Keithley 2231A-30-3 Power Supply: https://tinyurl.com/y6u5dkx6
👉 WANPTEK DC Power Supply: https://tinyurl.com/ybzxrn83

VIDEO / AUDIO
👉 DJI Lavalier Microphones: https://tinyurl.com/yc4umfya
👉 Sony A6100 4K Camera: https://tinyurl.com/pweejjps
👉 Apple iPhone 12 Pro Max
👉 Apple iPhone 12 Pro
👉 Elgato Lighting: https://tinyurl.com/482b2dm3

MISCELLANEOUS
👉 EIWEI 15L Ultrasonic Cleaner: https://tinyurl.com/mtpxadbp
👉 PCB Holder (Velleman VTHH6): https://tinyurl.com/3p7ua5wx
👉 TOMLOV TM4K Microscope: https://tinyurl.com/2v3f67rt
👉 KAIWEETS KTI-W01 Thermal Camera: https://tinyurl.com/4br8muah