Laney-CD650-mix-sm 维修电路原理图.pdf

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1、LaneyService InformationCD650 Mixer/AmplifierPart Number - SM3041RadioFans.CN 收音机爱 好者资料库LaneyContents1.DWG 30443.DWG 30104.DWG 9324 Preamp Diagram Channel8.Preset Adjustment on PCB 93239.DWG 9323 Power Amp Diagram15.Contact(Issue 2)Service Schematic2.DWG 2615 Mains WiringBlock Diagram5.DWG 9324 Prea

2、mp Diagram Masters6.DWG 9324 Preamp Diagram Channel7.DWG 9324 Preamp Diagram Masters10.DWG 9323 Power Amp Diagram11.Pre- amp PCB Assembly List12.Output PCB Assembly list13.Final Assembly List14.Cabinet Assembly List(Issue 2)(Issue 3)(Issue 3)(Issue 2)(Issue 3)RadioFans.CN 收音机爱 好者资料库23/11/99 Issue 1P

3、reset Adjustment PCB 9323To reset the amplifier bias following service or device replacement, follow these steps.1. Before powering up the unit for the first time after replacing devices, TurnR27,R28,R127 and R128 (All 1K presets) fully clockwise. This will bias the outputdevices into minimum conduc

4、tion. Failure to do this may result in the ampappearing to draw excessive current, Especially if powered through a “Current limit”device.2. Reset amplifier DC offset for Channel 1 by measuring between P2 (0V) and P107(Speaker). Set to 0V DC. 1mV, by Adjusting PS102.3. Reset amplifier DC offset for C

5、hannel 2 by measuring between P2 (0V) and P7(Speaker). Set to 0V DC. 1mV, by Adjusting PS2.4. Measure DC mV across TS109 Sense and Emitter junction. Adjust R128 until areading of 10mV 1mV is obtained.5. Measure DC mV across TS105 Sense And Emitter junction. Adjust R127 until areading of 10mV 1mV is

6、obtained.6. Recheck Across TS109 as above. Reset if necessary to 10mV.7. Check S, E junction of all four devices on channel 1 (TS105,TS109,TS111,TS114)This Should be 10mV 3mV. This completes Channel 1 re-biasing.8. Measure DC mV across TS9 Sense And Emitter junction. Adjust R28 until a readingof 10m

7、V 1mV is obtained.9. Measure DC mV across TS5 Sense And Emitter junction. Adjust R27 until a readingof 10mV 1mV is obtained.10. Recheck Across TS9 as above. Reset if necessary to 10mV.11. Double check S, E junction of all four devices on channel 2 (TS5,TS9,TS11,TS14)This Should be 10mV 3mV. This com

8、pletes the amplifier re-biasing.In practice, It may be easier to disconnect the Pre-Amp loom and facia from the rear chassis.Assembly List For ( 006347 ) Preamp PCB AssemblyStock CodeItemQty Req103815K .25W RESISTOR11300ORO SHORTING LINK691303100R 5% RESISTOR2130610K 5% RESISTOR4413091M 5% RESISTOR6

9、1310100K 5% RESISTOR251311470R 5% RESISTOR213124K7 5% RESISTOR1813148K2 5% RESISTOR22131547K 5% RESISTOR11131622K 5% RESISTOR13131739K 5% RESISTOR713186K8 5% RESISTOR1213263K3 5% RESISTOR3913271K 5% RESISTOR22133133K 5% RESISTOR31504 100R 2.5W RESISTOR 11920ZERO OHM RESISTOR38200447UF 50V RADIAL3201

10、310UF 50V CAPACITOR402014100UF 35V RADIAL120242.2UF 63V RADIAL1320251UF 63V RADIAL22026.47UF 63V RADIAL220274.7UF 63V RADIAL92200220NF 100V 10MM2240833NF 250V 10MM2240968NF 250V 10MM424131N5 100V 5mm824141NF 100V 5mm224152.2NF 100V 5mm1224174.7NF 100V 5mm42419100NF 63V 5mm9242022NF 100V 5mm2242110NF

11、 100V 5mm42423330PF 100V 5mm2242547NF 100V 5mm6242615NF 100V 5mm6260110PF 50V 10% COG6260247PF 50V 10% COG52603100PF 50V 10% COG62604270PF 50V 10% COG32605470PF 50V 10% COG212827680PF 50V CERAMIC230073V9 .5W ZENER DIODE130223mm GREEN LED730333mm LED RED1130343mm LED YELLOW230395V1 1.3W ZENER13500BAS

12、16 TRANSISTOR203503BC847B TRANSISTOR15Assembly List For ( 006347 ) Preamp PCB AssemblyStock CodeItem350834072 IC (SMD TL072)183805LB141323806LA36072392674HC4053 IC1401910K HORIZ PRESET24102B100K 27.5mm POT184103A100K 27.5mm POT84104A10K 27.5MM POT18410830mm 100K LIN SLIDER1450438 WAY LOCKING HEADER1

13、53048.5MM VERTICAL PUSH55305QUAD PC PHONO15306DUAL PHONO VERT PC15307X902-03 XLR653096.3MM PHONE JACK115311SLIDE SWITCH 3.5mm153122mm SLIDE SWITCH1531312 POS ROTARY SWITCH15657LED SPACER 12.7MM209324CR650 PREAMP1Assembly List For ( 006348 ) Output PCB AssemblyStock CodeItemQty Req101047K .25W RESIST

14、OR11300ORO SHORTING LINK91303100R 5% RESISTOR813052K2 5% RESISTOR2130610K 5% RESISTOR171310100K 5% RESISTOR313124K7 5% RESISTOR1131547K 5% RESISTOR1131622K 5% RESISTOR21320220R 5% RESISTOR413263K3 5% RESISTOR513271K 5% RESISTOR141329330R 5% RESISTOR81323 68R 5% RESISTOR 6150010R 2.5W RESISTOR4150122

15、0R 2.5W RESISTOR117011K 5W RESISTOR11920ZERO OHM RESISTOR18200447UF 50V RADIAL520091000UF 25V RADIAL2201310UF 50V CAPACITOR42014100UF 35V RADIAL220216800UF 63V 30*40220251UF 63V RADIAL12029220UF 25V CAPACITOR12200220NF 100V 10MM102400100NF 250V 10MM42410100NF 400V 15MM224152.2NF 100V 5mm2260110PF 50

16、V 10% COG22817100PF 100V CERAMIC230001N4007 DIODE630061N4148 DIODE130073V9 .5W ZENER DIODE6301415V 1.3W ZENER330171.5A 200V BRIDGE130197V5 1.3W ZENER DIODE2303822V .5W ZENER130408A 600V INLINE13411MPSA42/43 TRANSISTOR33412MPSA92/93 TRANSISTOR23500BAS16 TRANSISTOR153501SO642 TRANSISTOR63502SO692 TRAN

17、SISTOR83503BC847B TRANSISTOR43504BC857B TRANSISTOR3350834072 IC (SMD TL072)13611TIP32C TRANSISTOR13807SAP15N43808SAP15P439017815 IC139027915 IC140001K HORIZ PRESET6500620 TURN COIL2Assembly List For ( 006348 ) Output PCB AssemblyStock CodeItemQty Req5008TV125 FLAT HEATSINK35011TO3P WASHER85022PCB FU

18、SE CARRIER450438 WAY LOCKING HEADER15566 20mm T500ma FUSE(UL) 2 540023 20mm T10A FUSE 2560930A RELAY25657LED SPACER 12.7MM45686NEW SPADE TERMINAL149204NO 4*1/4 PLASTITE89323CR650 O/P1580006REFER 92349588006POP RIVET (BLACK)38P-5031CD650/630 HEATSINK1Assembly List For ( 007652 ) Final AssemblyStock C

19、odeItemQty Req5005NEW TYPE MAINS SOCKT1530880*80*25MM FAN 24V15310RV98M155037.5mm ROUND BLACK55509SMALL WHITE CAP1455115MM SOLDER TAG1553120mm T5A FUSE15542ROCKER SWITCH1555580mm METAL FAN GUARD15558100mm TIE WRAP1055718 WAY END CONNECTOR25659SHORT BOARD SPACER65666RED P402 KNOB95667BLUE P402 KNOB18

20、5668BEIGE P402 KNOB175669YELLOW CONTROL KNOB16347Preamp PCB Assembly16348Output PCB Assembly191513mm INT SHAKEPROOF69171M5 INT SHAKEPROOF291735*12mm PAN POZI191815mm BRASS HEX NUT191895mm CAGE NUT49200NO 6*3/8 FLANGE POZI69201No8*3/8 PLASTITE49204NO 4*1/4 PLASTITE2692174mm NUTSERT810004MONO JACK SOC

21、KET4530066SPEAKON SOCKET1540038EARTH WARNING LABEL1541004HC25/50 4.8 FASTON155410531/4 LG RECEPTACLE4586004M8 * 70 CUP SQUARE15860238mm SHKPRF WASHER1588006POP RIVET (BLACK)45P-58700330mm WASHER18P-8850CD650 FACIA18P-8851CD650 REAR18P-8852CD630/650 SIDE28T-6134CD650 MAINS1Assembly List For ( 20464 )

22、 Cabinet AssemblyStock CodeItemQty Req10039PENN CORNER C1839K810055PLASTIC CABINET FOOT410100STRAP HANDLE110200M5 x 10mm TEENUT2102025mm X 25mm CSK POZI2102095*35mm PAN POZI41022435mm FINISHED NAILS3010231No8x1/2 FLANGE POZI1610234No 8 X 3/4 CSK POZI41030118mm CHIPBOARD010321DB CARPET 1.5M WIDTH010454CARTON CD63011060032/18 STAPLES1210621POLY. BAG 30(0) X 36110629MASKING TAPE 1.51ReturnToContentsPage