Bose-1800V-pwr-tg 电路图 维修手册.pdf

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1、2000 Bose Corporation Part Number 199747-TG1 Rev. 00 1800 SERIES ?/?AMPLIFIERS ? ? !?#?$ %?#?-!?&?# ?&?$?5?&?# ?#?$?0?#? ?#?$?2?61!? ?#?#?&?1!?6?61!?-! ?$?2?#?&?6?61!? ? ?&?1!?$ TROUBLESHOOTING GUIDE RadioFans.CN 收音机爱 好者资料库 ?2?#?1!?(?$ ?%?1!?6?$?5?+? ?#?$?!? ?/?&?#$?,?3? ?$ ? ?&?61!?-!?$?1?#? ?#?&$

2、?2?&?#?-!?#?#?&? ?(?$ ?1!?&?$?2?+?/3?/? ?/?$ ? ?&?61!?&?$?2?#?#?1!? ?61!?$?2?&?1!?61!? ?$?0?#?#?&$ ?4?#?1!? 8?$?=?#?)?$?&?) ?&?#?&?$? ?#?#?$ %?$ ? ? !?#?#? ? AC Mains Voltage2SA1302 PNP Transistors2SA3281 NPN Transistors 40 VACB 0.5 V C 18.8 V E 12.5 mV B + 0.5 V C + 18.5 V E +12.0 mV 60 VACB 0.52 V

3、 C 29.8 V E 12.2 mV B + .51 V C + 29.8 V E + 12.0 mV 120 VACB 0.58 V C 53.0 V E 12.2 mV B + 0.56 V C + 53.0 V E + 12.0 mV AC mains Q9Q14Q20Q25D13D19Q2Q3 40 VAC G + 22.0 D + 40.0 S + 21.9 G 40.0 D 19.3 S 40.1 G + 22.4 D + 41.2 S + 22.1 G 41.0 D 19.8 S 41.0 1 + 22.4 2 + 19.2 3 + 22.0 1 - 22.0 2 - 20.1

4、 3 - 22.0 B + 15.7 C + 20.1 E + 15.2 B 15.7 C 20.0 E 15.1 60 VAC G + 31.9 D + 60.6 S + 30.0 G 61.6 D 30.1 S 61.0 G + 31.8 D + 60.5 S + 31.2 G 61.6 D 30.0 S 61.5 1 + 30.7 2 + 30.2 3 + 30.1 1 - 30.0 2 - 30.3 3 - 30.0 B + 15.8 C + 30.3 E + 15.3 B 15.8 C 30.4 E 15.2 120 VAC G + 56.3 D + 106.9 S + 56.4 G 106.4 D 52.2 S 106.3 G + 56.4 D + 107.0 S + 56.4 G 106.4 D 52.2 S 106.4 1 + 56.3 2 + 52.7 3 + 56.3 1 - 52.1 2 - 52.4 3 - 52.1 B + 16.1 C + 52.6 E + 15.6 B 16.1 C 52.3 E 15.5 RadioFans.CN 收音机爱 好者资料库