BO-Beomaster1900_type2903-rec-sch 电路图 维修手册.pdf

《BO-Beomaster1900_type2903-rec-sch 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《BO-Beomaster1900_type2903-rec-sch 电路图 维修手册.pdf（10页珍藏版）》请在收音机爱好者资料库上搜索。

1、Bang emittermodstanden. ADJUSTMENT oF No-stcNAL The no-signal current has to be adjusted while the receiver.is cold and with the CURRENT: volume control turned down. The loudspeakers m.ust not be connected. With2R249 (2R349) adjust for 25 mA ;ollector current of 2IC20O (2IC300) or - 12 mV across 2F.

2、256 (2R356). When the receiver has been switched on for 10 minutes, with the volume con- trol turned down, the no-signal current is checked and readjusted for 25 mA or 12 mY across the emitter resistor. RadioFans.CN 收音机爱 好者资料库 Bang9, gArr4L rtz.o ,./e*rrul- v tuttE HA tiSEKPLS lraJ.-Y.*v- OFF HIGH O

3、FF ON 1 . 2 a a 5 G 7 8 . F F. t s E : : E E E E ; * *PsBL btr3 9 l-:?1r: 203 L 200 H I l I* ( .r, ( ( ,nn, ( 5 J q r LOUDN, E 6o -8002291 *i;ff:4ft I - 085 Bang&Olufren S .o E 8320132 20 BC s48 B 4TR200/3C)0 8320069 1 BC 1543TRlO 3TRIl zo BCl72B19 BC 322 B 20 BC 183 B 18 BC 309 B 17 BC 183 BL20 BC.

4、214B 20 BC 183 BK20 BC 559 B 18 BC 253 B 3TRI28320221 20 BC 549 C 25 BC 149 C4TR20l/301 832009s 20 tsc 549 ts 20 BC 184 B 3TRI38320104 20 BC 558 B 17 BC 184 BL 20 BCZI2B 20 BC- 184 BK 1 7 B C 2 t 2 B 20 BC2I2BK 5TR18320108 10 BC 108 B 18 BC 172 B lrcl8340070 MP 14516 CP 5TR7 I BC 114 18 BC 238 B 18 BC 548 B 18 BC 183 B 17 BC 183 BL 19 MPS 6515