Yamaha Ca-r1 — Service Manual Better !free!
: 115dB (Main In); 83dB (Phono 1, 2).
The CA-R1 sits in a sweet spot of vintage audio. It offers a robust power output (typically around 65 watts per channel into 8 ohms) and a build quality that puts modern plastic receivers to shame. But after 40+ years, internal components like electrolytic capacitors and trimpots begin to drift or fail. Yamaha Ca-r1 Service Manual BETTER
| Section | Details | |---------|---------| | | Dual mono, 120W/8Ω (same as MX-1) | | Preamp | Servo-controlled tone, MM/MC phono (same as CX-1) | | Key Transistors | 2SA1142, 2SC2681 (driver); 2SA1215, 2SC2921 (output) | | Power Supply | ±62V main, ±22V regulated for preamp | | Idle Current | 15 mV (across emitter resistors TP1-TP2 / TP3-TP4) | | DC Offset | Adjust to 0V ±10 mV (VR401/VR402 on preamp board) | : 115dB (Main In); 83dB (Phono 1, 2)
: Designed to limit residual noise to or less at minimum volume . Filter Systems : Includes a subsonic filter ( high filter ( ) to remove unwanted low and high-frequency interference . But after 40+ years, internal components like electrolytic