BOSE SYSTEM For references to PG-POWER, see POWER SUPPLY, GROUND & CIRCUIT ELEMENTS . Scheme 230 Log in Scheme 230: BOSE SYSTEM Scheme 231 Log in Scheme 231 Scheme 232 Log in Scheme 232 Scheme 233 Log in Scheme 233 Scheme 234 Log in Scheme 234 Scheme 235 Log in Scheme 235 Scheme 236 Log in Scheme 236 Scheme 237 Log in Scheme 237 Scheme 238 Log in Scheme 238 Scheme 239 Log in Scheme 239: Terminals and Reference Value for Audio Unit (Base System) Scheme 240 Log in Scheme 240 Scheme 241 Log in Scheme 241: Terminals and Reference Value for Audio Unit (BOSE System) Scheme 242 Log in Scheme 242 Scheme 243 Log in Scheme 243 Scheme 244 Log in Scheme 244: Terminals and Reference Value for Subwoofer Amp. (Base System) Scheme 245 Log in Scheme 245: Terminals and Reference Value for BOSE Speaker Amp. Scheme 246 Log in Scheme 246 Scheme 247 Log in Scheme 247 Scheme 248 Log in Scheme 248: Terminals and Reference Value for AV Switch Scheme 249 Log in Scheme 249