A low-quality manual is a photo of a photocopy. Components look like blobs. A quality edition uses vector-based scans (or original high-res TIFFs). You should be able to zoom in on the Equalizer AMP board (Part No. LF-24180) and read resistor values (e.g., R121 - 2.2kΩ) without guessing.
With your high-quality PDF open, follow this accelerated service routine: Yamaha Ca-r1 Service Manual BETTER
The CA-R1 has TP1 (Temperature compensation diode) and TP2 (Output). The bad manual swapped the labels. The Cost: One blown V-FET in the left channel. Replacement cost: ~$300 (if you can find it). A low-quality manual is a photo of a photocopy