If you can't identify the tuner section from the power amplifier section of a receiver, you will very likely cause more damage than you can repair. Troubleshooting any receiver will require some knowledge of how a receiver works in block diagram form and a reasonable amount of test equipment. If you don't fix that problem first, you will have another burned resistor in a short time.
If a resistor burnt out, there is probably another component in front of the resistor that fed it the wrong voltage. But even if you find one, what are you going to do to fix it? Many of the simplest components in this receiver can't be merely replaced and expect everything to work well. Unplug the unit from the AC outlet and let it sit for a few hours to dissipate any stored capacitive voltage, then you can remove the top plate of the receiver and look for burned bias resistors. A 1990's Fisher receiver is not good quality gear and more than a few parts might not be available at this point. Then I would suggest you do it on a better system than this.
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