Laney. CD650Mixer/Amplifier ServiceInformation. PartNumber -SM3041

Transcription

1 Laney CD650Mixer/Amplifier ServiceInformation PartNumber -SM3041

2 Laney Contents 1.DWG 3044 Service Schematic 2.DWG 2615 MainsWiring 3.DWG 3010 Block Diagram 4.DWG 9324 Preamp DiagramChannel 5.DWG 9324 Preamp DiagramMasters 6.DWG 9324 Preamp DiagramChannel 7.DWG 9324 Preamp DiagramMasters 8.Preset Adjustment on PCB DWG 9323 Power Amp Diagram 10.DWG 9323 Power Amp Diagram 11.Pre-amp PCB AssemblyList 12.Output PCBAssembly list 13.Final AssemblyList 14.Cabinet AssemblyList 15.Contact (Issue 2) (Issue 2) (Issue 3) (Issue 3) (Issue 2) (Issue 3)

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10 23/11/99 Issue 1 Preset Adjustment PCB 9323 To 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, Turn R27,R28,R127 and R128 (All 1K presets) fully clockwise. This will bias the output devices into minimum conduction. Failure to do this may result in the amp appearing 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 PS Reset amplifier DC offset for Channel 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 a reading of 10mV 1mV is obtained. 5. Measure DC mv across TS105 Sense And Emitter junction. Adjust R127 until a reading of 10mV 1mV is 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 reading of 10mV 1mV is obtained. 9. Measure DC mv across TS5 Sense And Emitter junction. Adjust R27 until a reading of 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 completes the amplifier re-biasing. In practice, It may be easier to disconnect the Pre-Amp loom and facia from the rear chassis.

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13 Assembly List For ( ) Preamp PCB Assembly Stock Code Item Qty Req K.25W RESISTOR ORO SHORTING LINK R 5% RESISTOR K 5% RESISTOR M 5% RESISTOR K 5% RESISTOR R 5% RESISTOR K7 5% RESISTOR K2 5% RESISTOR K 5% RESISTOR K 5% RESISTOR K 5% RESISTOR K8 5% RESISTOR K3 5% RESISTOR K 5% RESISTOR K 5% RESISTOR R 2.5W RESISTOR ZERO OHM RESISTOR UF 50V RADIAL UF 50V CAPACITOR UF 35V RADIAL UF 63V RADIAL UF 63V RADIAL UF 63V RADIAL UF 63V RADIAL NF 100V 10MM NF 250V 10MM NF 250V 10MM N5 100V 5mm NF 100V 5mm NF 100V 5mm NF 100V 5mm NF 63V 5mm NF 100V 5mm NF 100V 5mm PF 100V 5mm NF 100V 5mm NF 100V 5mm PF 50V 10% COG PF 50V 10% COG PF 50V 10% COG PF 50V 10% COG PF 50V 10% COG PF 50V CERAMIC V9.5W ZENER DIODE mm GREEN LED mm LED RED mm LED YELLOW V1 1.3W ZENER BAS16 TRANSISTOR BC847B TRANSISTOR 15

14 Assembly List For ( ) Preamp PCB Assembly Stock Code Item IC (SMD TL072) LB LA HC4053 IC K HORIZ PRESET B100K 27.5mm POT A100K 27.5mm POT A10K 27.5MM POT mm 100K LIN SLIDER WAY LOCKING HEADER MM VERTICAL PUSH QUAD PC PHONO DUAL PHONO VERT PC X XLR MM PHONE JACK SLIDE SWITCH 3.5mm mm SLIDE SWITCH POS ROTARY SWITCH LED SPACER 12.7MM CR650 PREAMP 1

15 Assembly List For ( ) Output PCB Assembly Stock Code Item Qty Req K.25W RESISTOR ORO SHORTING LINK R 5% RESISTOR K2 5% RESISTOR K 5% RESISTOR K 5% RESISTOR K7 5% RESISTOR K 5% RESISTOR K 5% RESISTOR R 5% RESISTOR K3 5% RESISTOR K 5% RESISTOR R 5% RESISTOR R 5% RESISTOR R 2.5W RESISTOR R 2.5W RESISTOR K 5W RESISTOR ZERO OHM RESISTOR UF 50V RADIAL UF 25V RADIAL UF 50V CAPACITOR UF 35V RADIAL UF 63V 30* UF 63V RADIAL UF 25V CAPACITOR NF 100V 10MM NF 250V 10MM NF 400V 15MM NF 100V 5mm PF 50V 10% COG PF 100V CERAMIC N4007 DIODE N4148 DIODE V9.5W ZENER DIODE V 1.3W ZENER A 200V BRIDGE V5 1.3W ZENER DIODE V.5W ZENER A 600V INLINE MPSA42/43 TRANSISTOR MPSA92/93 TRANSISTOR BAS16 TRANSISTOR SO642 TRANSISTOR SO692 TRANSISTOR BC847B TRANSISTOR BC857B TRANSISTOR IC (SMD TL072) TIP32C TRANSISTOR SAP15N SAP15P IC IC K HORIZ PRESET TURN COIL 2

16 Assembly List For ( ) Output PCB Assembly Stock Code Item Qty Req 5008 TV125 FLAT HEATSINK TO3P WASHER PCB FUSE CARRIER WAY LOCKING HEADER mm T500ma FUSE(UL) mm T10A FUSE A RELAY LED SPACER 12.7MM NEW SPADE TERMINAL NO 4*1/4 PLASTITE CR650 O/P REFER POP RIVET (BLACK) 3 8P-5031 CD650/630 HEATSINK 1

17 Assembly List For ( ) Final Assembly Stock Code Item Qty Req 5005 NEW TYPE MAINS SOCKT *80*25MM FAN 24V RV98M mm ROUND BLACK SMALL WHITE CAP MM SOLDER TAG mm T5A FUSE ROCKER SWITCH mm METAL FAN GUARD mm TIE WRAP WAY END CONNECTOR SHORT BOARD SPACER RED P402 KNOB BLUE P402 KNOB BEIGE P402 KNOB YELLOW CONTROL KNOB Preamp PCB Assembly Output PCB Assembly mm INT SHAKEPROOF M5 INT SHAKEPROOF *12mm PAN POZI mm BRASS HEX NUT mm CAGE NUT NO 6*3/8 FLANGE POZI No8*3/8 PLASTITE NO 4*1/4 PLASTITE mm NUTSERT MONO JACK SOCKET SPEAKON SOCKET EARTH WARNING LABEL HC25/ FASTON /4" LG RECEPTACLE M8 * 70 CUP SQUARE mm SHKPRF WASHER POP RIVET (BLACK) 4 5P mm WASHER 1 8P-8850 CD650 FACIA 1 8P-8851 CD650 REAR 1 8P-8852 CD630/650 SIDE 2 8T-6134 CD650 MAINS 1

18 Assembly List For ( ) Cabinet Assembly Stock Code Item Qty Req PENN CORNER C1839K PLASTIC CABINET FOOT STRAP HANDLE M5 x 10mm TEENUT mm X 25mm CSK POZI *35mm PAN POZI mm FINISHED NAILS No8x1/2" FLANGE POZI No 8 X 3/4 CSK POZI mm CHIPBOARD DB CARPET 1.5M WIDTH CARTON CD /18 STAPLES POLY. BAG 30(0) X MASKING TAPE 1.5" 1

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