A Yamaha R-S202 that won't power on — dead, or clicking off right after it starts — is usually in protection mode or stuck in a power state, not a dead unit. The R-S202 is a simple 2-channel stereo receiver, so the troubleshooting is short, and a proper power-drain clears a lot of these.
Start with a power-drain
- Unplug it from the wall (the actual cord).
- Hold the power button for 30 seconds while unplugged, to drain residual charge.
- Plug into a different, known-good outlet (skip the power strip for the test) and try again. This clears a stuck power state and fixes many "won't turn on" cases.
If it clicks off when starting (protection)
A receiver that powers on then immediately shuts off is protecting itself from a fault on the speaker output — almost always a speaker-wire short. The same Check SP Wires / protect mode fix used on Yamaha's AV receivers applies here:
- Unplug it and check both speaker terminals (A and B if used) for stray strands of bare wire bridging the +/− posts. Re-strip and re-seat each wire.
- Disconnect all speakers and power on. If it stays on with nothing connected, the fault is in a speaker cable or speaker — reconnect one pair at a time to find it. If it still won't stay on bare, it's internal.
- Check impedance — the R-S202 is rated for 4–16Ω speakers; below that (or two pairs run together below the limit) can trip protection.
If it's completely dead
- Confirm the outlet works and the power cord is fully seated.
- Check the speaker A/B and the impedance switch (if your unit has one) are set correctly.
- If it stays completely dead after a power-drain and a known-good outlet — no lights, no click — the power supply has likely failed. On a budget stereo receiver that's a repair-vs-replace decision, but only after the free steps above.
FAQ
My Yamaha R-S202 won't turn on at all. Power-drain it: unplug, hold the power button 30 seconds, plug into a known-good outlet. That clears a stuck power state in many cases.
It clicks on then off. That's protection mode — usually a speaker-wire short. Disconnect all speakers and power on; if it stays on, reconnect a pair at a time to find the short. If your unit shows an error indicator instead, the Yamaha error code list helps decode it.
What speakers can it drive? The R-S202 is rated for 4–16Ω. Speakers below that, or multiple pairs run together below the limit, can trip protection.
Nothing works after all that. A failed power supply is likely on a completely dead unit. Weigh the repair against a new receiver, since it's a budget stereo model.