Realistic (Tandy) owners manual. Contains circuit diagram. 3072 kB, 338, Realistic, LAB-2100 · DPC-191 & 391 & 492.PDF, 12/06/22 Audio manuals and audio service pdf instructions. Find the user manual you need for your audio device and more at ManualsOnline. My trc-492 has blown L-7 and Q-19. The parts are charred and cannot be identified. Is there a schematic or manual available to service this unit? Thank you all. Realistic TRC-453 CB Radio AM SSB New Old Stock With box and instructions Realistic TRC-492 40-Channel CB/Ham Radio Base Station Transceiver New Open