JBL-ESC230-spk-sm 电路图 维修手册.pdf

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1、Simply Cinema ESC230 (120V) SPEAKER SYSTEM SERVICE MANUAL JBL Incorporated 250 Crossways Park Dr. Woodbury, New York 11797REV 0 5/00 RadioFans.CN 收音机爱 好者资料库 ESC230 (120V) 2 TABLE OF CONTENTS GENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 TECHNICAL

2、 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 CONTROLS AND CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 ELECTRICAL P

3、ARTS LIST (120V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 PACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、 . . .22 INTEGRATED CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 PRINTED CIRCUIT BOARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5、. . . . .28 SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 IC VOLTAGE READINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 DescriptionPart Number ESC230 SUBWOOFER *J-SP-SUB ESC230 SATELLITE SPEAKE

6、R * J-SP-SAT General System Specifications Power Output 15 watts x 6 0.1%THD Signal-to-Noise Ratio 90 dBA Input Impedance 20k ohms Input Sensitivity 400 mV System Frequency Response35Hz to 20kHz Dimensions (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

7、/8” (190 x 103 x 111mm) Subwoofer:17-3/4 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) 3 Specifications RadioFans.CN 收音机爱 好者资料库 ESC230 (120V) 4 Speaker Connection ESC230 (120V) 5 Source Connection (TV or

8、 VCR) ESC230 (120V) 6 Source Connection (Headphone) Plug In Turn On ESC230 (120V) 7 Test Mode and Level Adjustments Surround Modes ESC230 (120V) 8 Bass Boost Volume ESC230 (120V) 9 Center Channel ESC230 (120V) 10 Balance Surround Channel ESC230 (120V) 11 Bass and Treble ESC230 (120V) 12 Trouble Shoo

9、ting ESC230 (120V) 13 Ref. DesignatorPart NumberDescriptionQuantity ESC230 (120V) Parts List ESC230 (120V) 14 Ref. DesignatorPart NumberDescriptionQuantity ESC230 (120V) Parts List (Cont.) ESC230 (120V) 15 Ref. DesignatorPart NumberDescriptionQuantity ESC230 (120V) Parts List (Cont.) ESC230 (120V) 1

10、6 Ref. DesignatorPart NumberDescriptionQuantity ESC230 (120V) Parts List (Cont.) ESC230 (120V) 17 Ref. DesignatorPart NumberDescriptionQuantity ESC230 (120V) Parts List (Cont.) ESC230 (120V) 18 Ref. DesignatorPart NumberDescriptionQuantity ESC230 (120V) Parts List (Cont.) ESC230 (120V) 19 Ref. Desig

11、natorPart NumberDescriptionQuantity ESC230 (120V) Parts List (Cont.) ESC230 (120V) 20 Ref. DesignatorPart NumberDescriptionQuantity ESC230 (120V) Parts List (Cont.) ESC230 (120V) 21 ESC230 Exploded View ESC230 (120V) 22 ESC230 Packing ESC230 (120V) 23 ESC230 Integrated Circuit Diagrams ESC230 (120V)

12、 24 ESC230 Integrated Circuit Diagrams (Cont.) ESC230 (120V) 25 ESC230 PCBs ESC230 (120V) 26 ESC230 PCBs (Cont.) ESC230 (120V) 27 ESC230 PCBs (Cont.) 28 ESC230 Block Diagram ESC230 (120V) ESC230 Schematics 29 ESC230 (120V) ESC230 Schematics (Cont.) 30 ESC230 (120V) 31 ESC230 Schematics (Cont.) ESC230 (120V) 32 ESC230 Schematics (Cont.) ESC230 (120V) 33 ESC230 Schematics (Cont.) ESC230 (120V) 34 ESC230 Schematics (Cont.) ESC230 (120V) ESC230 (120V) 35 ESC230 IC Voltage Readings