TEAC S2000 Reel-to-Reel Tape Deck Capacitor Replacement Guide

Critical Capacitors to Replace

Power Supply Section

• Main filter capacitors (large electrolytic cans)
• Voltage regulator capacitors
• Rectifier circuit smoothing capacitors

Audio Signal Path

• Coupling capacitors between stages
• Equalization circuit capacitors
• Bias oscillator capacitors

Motor Control Circuits

• Motor run capacitors
• Speed control timing capacitors
• Braking circuit capacitors

Capacitor Replacement Reference Table

Location	Capacitor Type	Typical Values	Importance
Power Supply Board	Electrolytic	1000-4700μF, 25-50V	Critical - affects entire unit stability
Audio Amplifier Circuits	ElectrolyticFilm	1-47μF, 16-50V	High - affects sound quality
Motor Control Board	ElectrolyticCeramic	0.1-10μF, 16-100V	High - affects transport operation
Bias/Oscillator Circuit	FilmCeramic	0.001-0.47μF, 100-250V	Medium - affects recording quality
Control Logic Board	TantalumCeramic	0.1-10μF, 16-35V	Medium - affects control functions

Common Symptoms of Failing Capacitors

• Hum or buzz in audio output
• Weak or distorted sound
• Inconsistent tape speed
• Motor not starting or running erratically
• Functions not working properly
• Complete failure to power on

Replacement Recommendations

• Use high-quality replacement capacitors from reputable brands
• For electrolytics, use 105°C rated capacitors for longer life
• In audio signal paths, consider using film capacitors instead of electrolytics where possible
• Match or slightly exceed the original voltage rating
• Note polarity when replacing polarized capacitors

General Maintenance Tips

• Clean all switches and potentiometers with contact cleaner
• Lubricate moving parts with appropriate lubricants
• Check and replace worn belts
• Demagnetize the tape heads
• Adjust tape head alignment after capacitor replacement