JBL-ESC230-spk-sm 维修电路原理图.pdf

《JBL-ESC230-spk-sm 维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《JBL-ESC230-spk-sm 维修电路原理图.pdf（35页珍藏版）》请在收音机爱好者资料库上搜索。

1、Simply CinemaESC230 (120V)SPEAKER SYSTEMSERVICE MANUALJBL Incorporated250 Crossways Park Dr.Woodbury, New York 11797REV 0 5/00RadioFans.CN 收音机爱 好者资料库ESC230 (120V)2TABLE OF CONTENTSGENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2TECHNICAL SPECIFICATI

2、ONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3CONTROLS AND CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12ELECTRICAL PARTS LIST (120V

3、) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21PACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22INTEGRATE

4、D CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23PRINTED CIRCUIT BOARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28SCHEMATIC

5、S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29IC VOLTAGE READINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35DescriptionPart NumberESC230 SUBWOOFER *J-SP-SUBESC230 SATELLITE SPEAKER * J-SP-SATGeneral Syste

6、m SpecificationsPower Output 15 watts x 6 0.1%THDSignal-to-Noise Ratio 90 dBAInput Impedance 20k ohmsInput Sensitivity 400 mVSystem Frequency Response35Hz to 20kHzDimensions (H x W x D)Main Unit: 2-11/16 x 13-1/2 x 9”(69 x 343 x 230mm)Satellites:7-1/2 x 4-1/16 x 4-3/8”(190 x 103 x 111mm)Subwoofer:17

7、-3/4 x 7-3/4 x 13-7/8” (451 x 197 x 352mm)* The ESC230 subwoofer and satellite speakers are not serviceable.RadioFans.CN 收音机爱 好者资料库ESC230 (120V)3SpecificationsESC230 (120V)4Speaker ConnectionESC230 (120V)5Source Connection (TV or VCR)ESC230 (120V)6Source Connection (Headphone)Plug InTurn OnESC230 (1

8、20V)7Test Mode and Level AdjustmentsSurround ModesESC230 (120V)8Bass BoostVolumeESC230 (120V)9Center ChannelESC230 (120V)10BalanceSurround ChannelESC230 (120V)11Bass and TrebleESC230 (120V)12Trouble ShootingESC230 (120V)13Ref. DesignatorPart NumberDescriptionQuantityESC230 (120V) Parts ListESC230 (1

9、20V)14Ref. DesignatorPart NumberDescriptionQuantityESC230 (120V) Parts List (Cont.)ESC230 (120V)15Ref. DesignatorPart NumberDescriptionQuantityESC230 (120V) Parts List (Cont.)ESC230 (120V)16Ref. DesignatorPart NumberDescriptionQuantityESC230 (120V) Parts List (Cont.)ESC230 (120V)17Ref. DesignatorPar

10、t NumberDescriptionQuantityESC230 (120V) Parts List (Cont.)ESC230 (120V)18Ref. DesignatorPart NumberDescriptionQuantityESC230 (120V) Parts List (Cont.)ESC230 (120V)19Ref. DesignatorPart NumberDescriptionQuantityESC230 (120V) Parts List (Cont.)ESC230 (120V)20Ref. DesignatorPart NumberDescriptionQuant

11、ityESC230 (120V) Parts List (Cont.)ESC230 (120V)21ESC230 Exploded ViewESC230 (120V)22ESC230 PackingESC230 (120V)23ESC230 Integrated Circuit DiagramsESC230 (120V)24ESC230 Integrated Circuit Diagrams (Cont.)ESC230 (120V)25ESC230 PCBsESC230 (120V)26ESC230 PCBs (Cont.)ESC230 (120V)27ESC230 PCBs (Cont.)2

12、8ESC230 Block DiagramESC230 (120V)ESC230 Schematics29ESC230 (120V)ESC230 Schematics (Cont.)30ESC230 (120V)31ESC230 Schematics (Cont.)ESC230 (120V)32ESC230 Schematics (Cont.)ESC230 (120V)33ESC230 Schematics (Cont.)ESC230 (120V)34ESC230 Schematics (Cont.)ESC230 (120V)ESC230 (120V)35ESC230 IC Voltage Readings