Alto-X23-xo-sm 电路图 维修手册.pdf

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1、Service Manual Version: 1.1 Model: X23 (2-WAY STEREO 3-WAY MONO) ACTIVE CROSSOVER RadioFans.CN 收音机爱 好者资料库 CONTENTS 1. Specification 2. Block Diagram 3. Schematic Diagram 4. Printed Circuit Board 5. Wiring Diagram 6. Test Procedure 7. Electrical Parts List 8. Exploded Views & Mechanical Parts List 9.

2、 Notes RadioFans.CN 收音机爱 好者资料库 LOW-MID Frequency Range MID-HIGH Frequency Range HUM & Noise LOW Section (Output0dB) HIGH Section(Output 0dB) S/N Ratio Input Level Output Level CD Boost Mute Phase Controls Range1 80Hz - 1KHz Range10 800Hz - 10KHz AV=0dB, fc=800Hz -106dBu -97dBu 118dB continuously var

3、iable low, high continuously variable rear panel switch low, high front panel switches rear panel switch Physical Dimensions Weight 483(W) 194.5(D) 44(H)mm (19 7.7 1.7) 3.1Kg(6.84lb) Electrical Power Supply Connector type Type Mains supply Power Rating 3-pole IEC , grounded Servo controlled , stabil

4、ized 8.5W 95-120V/210-240V,60-50Hz 1. SPECIFICATION (X23) RadioFans.CN 收音机爱 好者资料库 1234 A B C D 4321 D C B A Title NumberRevisionSize A4 Date:29-Oct-2002Sheet of File:D:pc42pc42ALTOX23X23.ddb Drawn By: 100mA FUSE 56 AC POWER SW AC INPUT 210V-240V AC PLUG 50Hz 102 PT-SCX-34 230V 0V 115V 20V 0V 20V BRI

5、DGE AND FILTER CIRCUIT +15V 0v -15v 2 1 3 A -CHANNEL SIGNAL CN-BAL-FEMALE-2 3 2 1 A TL074 VR gain FREQ. CONTOLL 80Hz - +920KHz 3 2 1 A TL074 high out VR gain pass filter over freq. 100Hz +1KHz Low -MID 3 2 1 A TL074 VR gain LOW OUT or low out OR MID OUT 2 1 3 B-CHANNEL SIGNAL CN-BAL-FEMALE-2 3 2 1 A

6、 TL074 VR gain FREQ. CONTOLL 80Hz - +920KHz 3 2 1 A TL074 high out VR gain pass filter over freq. 100Hz +1KHz Low -MID 3 2 1 A TL074 VR gain LOW OUT or low out OR MID OUT 2.Block Diagram 12345678 A B C D 87654321 D C B A X23.Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 27-Jan-2002 TA

7、SY J.S. ALTO Mobile : X23 MAIN BOARD 11of X23V1.0A4 C101 104P/250VAC +15V -15V R103 2R2 1/2W R102 2R2 1/2W 1 2 3 J101 3P2.5 AGND SW205 SW-PBA/6PC 3 2 1 IC201A MC33079 5 6 7 IC201B MC33079 D201 4148 D202 4148 D203 4148 D204 4148 C204 220P -15V +15V 2 1 3 X8 CN-BAL(FEMALE) 10 9 8 IC201C MC33079 12 13

8、14 IC201D MC33079 3 2 1 IC202A MC33079 5 6 7 IC202B MC33079 VR201 10KB C242 100/25V R204 10K0 R201 10K0 R202 10K0 R203 10K0 R251 10K0 R205 10K0 R250 10K0 R252 10K0 SW201 SW-PBA/6PC CD BOOST C298 822(M) R283 825R C202 220P R244 10K0 R241 15K0 R240 10K0 VR204D B50K R261 10K0 R262 10K0 C264 182(M) VR20

9、4C B50K R259 10K0 R260 10K0 C261 182(M) R243 3K57 VR204B B50K R257 10K0 R258 10K0 C260 182(M) VR204A B50K R255 10K0 R256 10K0 C257 182(M) 10 9 8 IC202C MC33079 R245 3K57 12 13 14 IC202D MC33079 R239 3K92 C210 153(M) R278 6M8 98 6 IC205A 4066 C209 153(M) R277 6M8 1110 12 IC205B 4066 C211 153(M) R274

10、6M8 43 5 IC205C 4066 C212 153(M) R273 6M8 12 13 IC205D 4066 R276 10K0 R275 100K SW204 SW-PBA/2P D205 6V8 1/2W D206 6V8 1/2W R281 560R R282 560R 147 IC205E 4066 +15V -15V RANGE X1X10 S-HL2 S-HG2 411 IC202E MC33079 411 IC201E MC33079 C203 104P C206 104P 411 IC203E MC33079 411 IC204E MC33079 C243 100/2

11、5V C244 100/25V C238 470/25V C237 470/25V C208 104P(C) C207 104P(C) XOVER FREQ 80Hz + 920Hz STEREO/MONO 2 1 3 22 11 33 X7 R288 10K C267 47/25V C266 47/25V R242 2K49 SW203 SW-PBA/2P VR203 10KB R230 4K99 R231 27K4 3 2 1 IC203A MC33079 5 6 7 IC203B MC33079 R228 100K R227 7K50 R226 10K0 R272 2K67 R229 1

12、0K0 R279 1K50 D207 LED HIGH CLIP -15V LED-HG2 +15V 10 9 8 IC203C MC33079 R295 10K0 R263 10K0 R264 10K0 R210 150R C228 220P C227 182(M) C230 100/25V R211 100K 12 13 14 IC203D MC33079 R296 10K0 R266 10K0 R265 10K0 R213 150R C235 220P C234 182(M) C232 100/25V R212 100K 2 1 3 X11 HIGH HIGH PHASE 1 3 4 5

13、 6 2 SW206 SW-PBA/2P 2 1 3 22 11 33 X12 S-HG2 SW202 SW-PBA/2P VR202 10KB R225 4K99 R224 27K4 3 2 1 IC204A MC33079 5 6 7 IC204B MC33079 R222 100K R220 7K50 R221 10K0 R271 2K67 R223 10K0 R268 1K50 D2061 LED HIGH CLIP -15V LED-HL2 +15V 10 9 8 IC204C MC33079 R254 10K0 R290 10K0 R291 10K0 R206 150R C218

14、220P C217 182(M) C220 100/25V R207 100K 12 13 14 IC204D MC33079 R289 10K0 R293 10K0 R292 10K0 R209 150R C225 220P C224 182(M) C222 100/25V R208 100K 2 1 3 X9 LOW 2 1 3 22 11 33 X10 S-HL2 R253 10K0 R294 10K0 R284 10K0 C231 220P R285 10K0 R286 10K0 C233 220P R287 10K0 C213 104P C214 104P C263 100/25V

15、C265 100/25V 3. Schematic Diagram 1234 A B C D 4321 D C B A Title NumberRevisionSize A4 Date:27-Jan-2002Sheet of File:D:pc42pc42pc42S-OVERSCX202SSCX202SSCX202S.ddbDrawn By: SCX POWER Schematic系系 DB1 RB154 C5 104P C4 104P IC1 L7815 IC2 L7915 C6 1000/16V C7 1000/16V C8 104P C9 104P 1 2 3 CN2 3P2.5 +15

16、V -15V 1 2 CN5 2P2.5 R1 1.2K +15V -15V 1 2 3 CN3 3P2.5 C18 1000/35V C19 1000/35V 1 2 3 CN? CON3 X23(M) PCB LAYOUT PCB : X23(M) Top Layer PCB : X23(M) Top Solder Mask PCB : X23(M) Top Overlay PCB : X23(M) Bottom Layer PCB : X23(M) Bottom Solder Mask PCB : X23(M) Bottom Overlay PCB : X23(M) Drill Draw

17、ing Plots Hole Size Hole Count 24mil (0.6mm) 73 31mil (0.8mm) 68 39mil (1.0mm) 36 47mil (1.2mm) 36 59mil (1.5mm) 2 87mil (2.2mm) 6 150mil (3.8mm) 4 Totals 225 SCX223IO PCB LAYOUT PCB : SCX223IO Bottom Layer PCB : SCX223IO Bottom Solder Mask PCB : SCX223IO Top Overlay PCB : SCX223IO Drill Drawing Plo

18、ts Hole Size Hole Count 31mil (0.8mm) 24 39mil (1.0mm) 14 47mil (1.2mm) 6 55mil (1.4mm) 18 63mil (1.6mm) 12 150mil (3.8mm) 2 Totals 76 XPWR PCB LAYOUT PCB : XPWR Bottom Layer PCB : XPWR Bottom Solder Mask PCB : XPWR Bottom Overlay PCB : XPWR Top Overlay PCB : XPWR Drill Drawing Plots Hole Size Hole

19、Count 31mil (0.8mm) 14 39mil (1.0mm) 22 63mil (1.6mm) 3 98mil (2.5mm) 4 138mil (3.5mm) 4 Totals 90 1234 A B C D 4321 D C B A X23().Sch Titel Size File: Date: Drawn By: Sheet RevisionModel No: 29-Oct-2002 TASY J.S. ALTO Mobile : X23 Wiring Diagram 11of X23V2.0A4 X23 Wiring Diagram SCX223IOSCX223IO X2

20、3(M) XPWR LED CN4CN2CN1 CN4CN3 CN2CN1 CN5CN4CN3 CN2 CN1 CN2CN3 CN4 CN6 PT-SCX34 X23(M) CN5CN4CN3 CN2 CN1 CN6 CN1 GND AC IN 5. Wiring Diagram X23-ALTO-230V Structure Needing Material Detail List Midprod NONO.QuanityUnit 7. Electrical Parts List Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: M

21、ARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK:

22、MARK: Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MAR

23、K: MARK: Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: Item NameSpecificNOMaterial No MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: MARK: 8. Exploded Views