Index SERVICE MANUAL DX24
Contents
1.2. R29 Package pin out 1 04 DRW G BOCCATO 550722 PCB 313069 1 GENERALMUSIC S p A ITALY CKD G RICCI DATE 22 03 01 SCHEMATIC DIAGRAM DX24 ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT APP FGAZZILLI REV A CPU amp AD DA PCB LAYOUT WRITTEN CONSENT BY GENERALMUSIC 313070 SILK HBO 745 T Oe Sle 313073 K Eres STORE DRw G BOCCATO K Er DwG 550723 K ay Ea R38 313070 313073 313074 GENERALMUSIC S p A ITALY C
3. S3A 112 _ 1 13 27 40010 R72A 330E L3A FLSR eased ls 768231 IN OUT BOARD 1 92 201 35 7 100 ALA 06 5 ARIS 14 AA 050 DAD TE DAG Ic7A 7 MIDI s ARB 3 4 20215 0 1 o ar 36 5 oar pao 16 ao 74HCO4 74 4 CPU DSP amp AD DA BOARD a o2 fo ooe p02 s e toe 7 Bri 3p R73A 330EL2AFLSR 5 QUT 1222 E 5 2 2 Dat gt Do pos 7 20410 gt 40 2 paz 18 a2 gt 2 ARIO rae m 7 5 2 Jo 100 X4 5 Fot tke aps 12 5 ARIS 7 AAS 0 04 DA4 Da3j 19 3 gt D3 a al ARS 005 4 2065 5 05 lt Das 42 ARI4 5 DAS pas 22 4 lt 7 004 1008 8 z 205 R75A 330E LSAFLSR DDE 207 43 100E 4 23 joos 4 4 1 we 1 2 5 0 06 2 DAB DAS AS 05 007 7 4 Joos 2 ARI 151
4. 1 25 R28 1K2 R27 1K2 MUTE 4 P6 STBLED 1 02 05 04 05 06 07 S P SHIFT LATCH REGISTER 5 74HC4094 8T CLOCK 1 P40A P4 CLOCK 1 LED EN P30A P3 LED EN 8 3 lt 4 74 04 10 F 5V 5 5 A CLOCK 5 PS CLOCK IC4A 74HC4094 74HC4094 2 74 4094 7 4 4094 4 74 04 1 5 74HC4094 74 1 5 16 74 1 5 74 14 IN OUT BOARD CNx PCB 313074 DRW G BOCCATO 550720 PCB 313073 313074 PCB 313073 PANEL SUPPLY FROM GENERALMUSIC S p A ITALY CKD RICCI TOSI 10 01 03 SCHEMATIC DIAGRAM DX 24 APP GAZZILLI OA CONTROL PANEL ASSEMBLY ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC
5. apah 7 g 27 0 07 Q pas 24145 208 a 14 1C7A 1 7 2 MIDI AM2 100E X4 Isa daa 7 2 2 45 98 100E 7 25 7 2 4007 e TEVA 74HC04 74 04 467 5 X aa 26 555 Rerik 2 55 am R74A 330EL4AFLSR 5 THRU VPPO 3 4 45 _26 3 oj m 74HCO4 1 2 5 6 m om 1 2 Amo aao Z 7 3 4 arie 23 Aamo og a 5VD 5 D_AIO 15 INC 52 3 4 Aam aan aon 18 1 2 4 7 25 aan Don 7 sjoon 8 oan 12 53 000 5 6 O aoz 217 4 12 Ty a AAS ba ang POR 2 2 Q W Inc 34 55 1 aaz 22 5 28 DDE R76A330E L7A FLSR i a 100E x4 3 1 52 35 co D 4 AD 23 aL ARIZ za R 5 53 13 pi 87 0018 8 aas as 124 1 AMS 0 04 g DO A iak W o 215 ICBA DSA 4148 2 MIDI 1 2 lt Co 16 pees 8 0 05 0 34 oras 14 RAS 38 IC7A IC7A 6N138 IN ARS g 135 4 r 55 28 Jovis 5 R 3 LBAFLSR 5 xa 13 I aa 1 ALWEB 35 AAI7 OTAS 015 7 4 74 4 ats ea aoe 36 5 4 4 026 56 ocas 29 8 rjo 5 3 5vD 5 6 aae aas O H
6. gt 4 2 MC33078 8 12 a Ica 1 55 ave 27 z z z zlz 2 7283 svt 5 SIELE ele T 21 t 3v5 a mm mm P ah E 8 2 99 a g Agno 1 4 LOGIC SUPPLY 5 2 2v C57A IN R67A 23K7 ADC PLL z J RIBA ISKOLZOAFLSR 3 5VD vena 5VD 5VD tt Ta 1 1 5 z 2 z a aS z z 21519 R70A C53 470 1 N ne ee 147 2 5 14 14 oje 104 1 e 5 8 5 8 8 8 8 8 8 8 8 x 1012 g IC10 gt 16 1 14 2 470 2 _ 1 ROSA 15KO 21 FLSRI 2 4 al REDLG z 514260 74 04 N 24 32 1 MC33078 Re m 8 8 35 215 p 8 ajo B RIOIA_10K 3 MC33078 e L lt 4 57 z gt 6 gt 6 gt t 4 1 s 8 5 5 5 gt 3 31 15 146 e sie 20 2 2 5 012 20 2 2 8 E 8 23 Re 57 e 8 52 e 8 54 S 91 aT oE n ne PLL SUPPLY Pimes E Mss om a oo jem 150 19 Ji E a 8 13 I 8 a 7 JEI 24 Ji I 44 4 4 C54A 47
7. 1 4 RIZA 1 2 7 4 R1I4A 1K2 RISA 1K2 2 AY R7A 1K2 RBA 1K2 DL5A SN gt gt gt LATCH REGISTER R4A 1K2 01 02 05 04 05 06 07 Q8 cp 8BIT S P SHIFT a ST 74HC4094 R3A 1K2 CA 1K2 124 OUTI 7 RIGA 1K2 OE 24dB OUTI PZA R21A 1 2 RSA 1K2 CLIP oUT2 42 94 aK LIMIT outi 42024 CLIP outi PHEA RBA 1K2 RSA 1K2 6dB DL2A SN LATCH REGISTER R2A 1K2 01 02 03 04 05 06 07 cp 8BIT S P SHIFT as ST 2 74HC4094 RIA 1K2 CLIP A T 24dB ouT3 25 R30A 1K2 12dB OUT3 R27A 1K2 OE P 27 i R23A 1 2 RISA 1K2 LIMIT 25 24dB8 ouT2 12 254 12dB OUT2 R26A 1K2 R22A 1K2 6dB ouT2 42 84 DL22AN He 01 0203 04 05 06 07 LATCH REGISTER RIZA 1K2 cp 8 S P SHIFT as 74HC4094 ST RIZA 1K2 LIMIT OUT2 4244 24dB OUT4 10 768243 CONTROLS PANEL BOARD TO LCD DISPLAY CNi 5V 2 GND 4 100 tHE T14 100N
8. 2 1 5 2 2 1 21 21 220 lt 24 mooe lt 5 oF MC33078 Cs as 47 04 725 08 g ee ne 24176 6 R Pos 7 83 P127B1R0 25 5 2 22 o a R20A 1 5 Daco 2 R45A 10KO 1 D27 85 2 6 2610 16 26 a5 8 voute 6 1 OUT2 PIS 8IR3 IH 1 R2A_75 0 470 ROSA 332E LI4AFLSR CATE 14 07 87 pie airs R28 100 1 27 10 16 5 4 AF 15 4 aaa DACS i RISA_10KO IC4A ZENTR ad paca 15 100E 4 2 R32_4K7 el MC33078 N PEES vacs 7 7 8 DATA OUTI 5 gt RASA 4 90 7 5 DATA GUTS ha 4 2 25 54 5 5 MC33078 OR z C29A 22P 22 3 4 48KHz J AN EQUIVALENT 1 Ass asker Geena R83 100E 64 mpo _o BBLR 176 1 2 3 072MHz 1 RiB 220 84 100 59 FSYNC_o 9 svo E 34176 R57A 2 R22A 65 mp1o Fsync i 8 4 17 tiekas 182 a 10K0 RSBA z 75E0 4 474 332E LIZAFLSR ri gt moissk MIGUT 66 2_0 2 8 gt CBIA 470 R48A 10KO IC4A 1 am Bo 61 Mo2_1 2 MC33078 yee ef 8 anco 96 DATA IN ic9 R64A10K 1 RASA MKS 8 a
9. 5 027 lt 1 x 1 2 7 2 133 1 2 pate 57 Doe 27 0 1 167 aa R108 100E P06 D28 se 2 2 4 158 20 sfc 7 028 NENC 169 _ 21 a cso 25 0 50 30 7 8 foras 170 22 _ 51 32 2910 sae LS POS D31 p_csi 5 DEAS ARB 171 25 a_cs2 33 3 4 DWR 4K7 X4 a6 posvae 93 1 14 24 64 1 2 22 R24A 1 5 5 4 4 MIDI IN L Ft 57 2 7207430 ARI 470E X4 MIDIIN RSIA 1 58 2 31 a z 2 24786 FF 0 e 2 a1 1 25 75 0 470 332E LIGAFLSR 09 1 er a rama 1 70 Into 125 u 9 R23A10KO 3 ISA 27 gt MC33078 x RIS 1 5 KS H 128 lt a INT2 4 mT3 129 35 22 1 7 4 1 RS4A 23K7 C34A IN MUTE 1 LREN vouTR 3 ay w R53A 1 5 1 Or 20 R30 100E C30 1U 16 RS 10 4 Slan 7 39K2 R264 6 Zeluns 4 7 RSSA 1 ba 1 52 75 0 CS9A 474 R90A 332E LISAFLSR gt ma a S 5 27 r R61 10K 5 o 1 470 g 1 a CNS 5VD 26 Pn ee 3078 x 5a 863 5 cd R634 10k ICBA
10. 15K0 aA 52 1N 23 7 RRRA 10K0 R94A ISKO LIBA FLSR 1 co C PCB 313059 1 P IN B 470 R95A ISKO LISAFLSR 1 MC33078 9 of CNA 5 1 5 RIZA 4731011 5 9541 wcs3078 was z MAINS 984265VAC Zo z z z z z z z S 8 SAPTE 40W SWITCHING z z z z anes 8 si S g S g 8 INLET SUPPLY UNIT 32 4 3 4 5 5 CNSA lt el a are 219 e a 1 5 8 0 0 8 8 8 0 vac 1 oo TESA TEIOA ICA IEZA TT 2 MC33078 MC33078 MC33078 MC33078 MC33078 Bhoys Mceso7e messo7a _ 72 5 2 3 Elo 4 er z z 8 aJ 6 5 5 5 5 6 az 5 Nd 3 ol s 123 2 8 g 4 2 5 lt pip 5 gt 5 T lt oT g STS lt 5 a lt 3 81313069 1 8 8 0 0 DRW G BOCCATO DWG 550719 PCB 313069 313070 GENERALMUSIC S p A ITALY CKD RICCI GIBIN DATE 07 03 01 SCHEMATIC DIAGRAM ALL RIGHTS ARE RESERVED NO COPIES CPU DSP amp AD DA IN OUT BOARD OR REPRODUCE THIS DOCUMENT WITHOUT gt APP F GAZZILLI REV WRITTEN CONSENT BY GENERALMUSIC OLP SBD GHAI TOPO SIR KE 5 5 14 AS 17 2 VR3 L6 R2 Ov a ih 65 VC INEBOEIE nan E 10
11. Socket 6 3mm Vertical Male Faston for Pcb MC33078 Dual LN Operational Amplifier 74 04 Hex Inverter 6N138 Optocoupler 1N4148 100mA 75V Signal Diode 10K 1 8w 5 Resistor 4K7 1 8w 5 Resistor 220E 1 8w 5 Resistor 68E 1 8w 5 Resistor 39K2 1 4W 1 Metalized Film Resistor 18K2 1 4W 1 Metalized Film Resistor 15KO 1 4W 1 Metalized Film Resistor 11K5 1 4W 1 Metalized Film Resistor 10KO 1 4W 1 Metalized Film Resistor 2K43 1 4W 1 Metalized Film Resistor 332E 1 4W 1 Metalized Film Resistor He He Hl HY He He HH HH HE He HH HH He He HH HH HE HE HH HH HE HH HH 4H HH HH HE HH HH HE HE HH HH 4H HH HH HE HE HH HH HE He HH ee 042345 75E0 1 4W 1 Metalized Film Resistor 030858 4700 25V 20 Vert Electrolytic Capacitor 030403 47 25V 20 Vert Electrolytic Capacitor 022002 1 5 2 5 100V MKP Polypropylene Capacitor 010595 100n 50V 20 80 Ceramic Cap Multilayer 010304 47 50V 10 CL2 Ceramic Capacitor 010271 22 50V 10 CL2 Ceramic Capacitor Wiring Connections 841271 27 5cm Yel Grn Eye Faston Faston Wire with 10E Res 841270 Single 12 5cm AWG18 White Faston Faston Wire 841269 2 Wires 40cm Faston Crimp Terminal Cable 841264 6 AWG18 Wires 10cm Crimp Terminal Cable 841263 8 Wires 3cm Flat Cable 841252 6 Wires 12 5cm Crimp Terminal Cable 841206 4 Wires 20cm Flat Cable 841005 7 5cm Yel Grn Faston Faston AWG18 Wire 840838 20 Wir
12. zs C43A 470 RAZA 10KO IC3A a l ho 1 P23 47K Tan 22 R22_220K feia RASA 5 5 STBLED 2 2 lt Ht 6 2 m e MC33078 CT g 4 INTERZ l i 1 g 8 R I 0 1 5 74 74 R45 476l R73 10K 10 moveo vrer 2 g alax ME gt SYSCLK 12 288MHz 5VD gt ETEN a 4 A 2 c62 1000 R33A 10K0 D FF 15 74 74 R69 10K ajewo 2 ery 2 als a 75 0 42 470 332E LIOAFLSR 0094 35 4 114 wl Go REO 10K 7 avpas lt REFCOM Q Rna 100 3 2 CH 2 lt CN4A 3078 xfs R32A KS 84 550E 09 4148 a 16 1 INA lt ICIS MAX709 5VD 5 z GND 21 22 E 1 74 14 74 14 74HC14 7 4HC14 4 C61 1000 1 anci a verele eet Te TEEN Po Po 5 5 F 41 1 5 gt ase Blinc 2 VaR E RBO 10K 2 20 RBA_39K2 sloa 75 0 C41A47U R78A332EL9A FLSR 74HC04 i 5VD 1 74 04 2 2 gt 4 cna IC2A ADC SUPPLY SP gt 08 8 Al 4 eer FA MC33078 5 5 nK 19 7AHCOS 5m R294 10K 1 5 gt 8 8 09 gt GND 5 5 ZA p IC5 74HC04 8 8
13. CNTR 4 RS R W 6 ENABLE DO D1 1 D2 10 D3 D37 Pil D4 12 05 DSZ D6 14 D7 D7 P15 DCS2 P17 DIALO R13 3K9 C15 2200 FH ARI 4K7 74 1 5 SHIFT REGISTER AR2 4K7 2 74HC165 IFT REGISTER 4 Ic4 74HCO4 74HCO4 7 SD LED H R34A 1K2 12dB OUT4 35 He Aa R31A 1K2 OE DL2BAN 24 He E R28A 1K2 R24A 1K2 DL20A DLISANS LATCH REGISTER R20A 1K2 01 02 03 04 05 06 07 98 cp 8 S P SHIFT as 4 74HC4094 ST RIBA 1K2 1 STBLED 2 R20 1K2 5 UTILITY R22 1K2 ou AN PRESET iq 1 _4 AN R21 1K2 01 02 Q3 04 05 06 07 SBIT S P SHIFT LATCH REGISTER 74HC4094 EDI ka 2 ee 5V 10K R19 IC4 74HCO4 3 4 E C16 47 4 74HCO4 R25 1K2 MUTE2 42 5 R26 1K2 5 9
14. Index Technical Specification Assembly Test Procedure amp Wiring Block Diagram Controls Panel Board Schematic Cpu Dsp amp AD DA Board In Out Board Schematics Cpu Dsp amp AD DA Layout In Out amp Controls Panel Layouts Spare Part List PROFESSIONAL SOUND SERVICE MANUAL DX24 Notice Service must be carried out by qualified personnel only Any tampering carried out by unqualified personnel during the guarantee period will forfeit the right to guarantee For a correct operation of the instrument after having switched off be careful to wait at least 3 seconds before switching on again To improve the device s specifications the schematic diagrams may be subject to change without prior notice All components marked by this symbol have special safety characteristics when replacing any of these components use only manufacturer s specified parts The micro symbol of capacitance value is substituted by U The Q omega symbol of resistance value is substituted by E The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified All resistors are 1 8W unless otherwise specified All switches shown the OFF position All DC voltages measured to ground with a voltmeter 20KOhm V lt Soldering point 4 Supply voltage gt Logic supply ground e Male connector Test point Analog supply ground gt Female connector lt Flag joined with or more flags Chassis gr
15. KD G RICCI DATE 22 03 01 APP FGAZZILLI REV A SCHEMATIC DIAGRAM DX24 ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT amp CONTROLS PCB LAYOUT WRITTEN CONSENT BY GENERALMUSIC Spare Part List Legend EU Europe Version 230Vac US United States Version 115Vac Code 277349 130297 130283 667731 667729 667728 657279 657277 347060 340961 340186 340078 210215 190234 150298 120827 120582 120481 120467 120276 120029 120025 120005 110614 110285 731011 768245 140860 080757 768244 140874 103028 081702 081701 081700 054037 054012 011060 768243 841268 340856 141018 141015 140918 140529 110261 103032 103028 103010 103000 081000 080705 055101 054060 054048 054045 054043 054037 054036 040091 030565 030246 011060 011048 011020 347394 120579 120021 Description Accessories Owner s Manual Italian English Mains Cable EU Mains Cable US Assembly Cover Chassis Front Panel Display Screen Meters Screen Nylon Cable Tie with 3mm Eye Encoder Knob Adhesive Cable Fixing TO220 Insulated Bush Adhesive Rubber Foam 10x1 9mm Specify mt 100X130X0 4mm Lateroid Insulator 100x2 5mm Nylon Cable Tie 10mm Threaded Spacer M3 Black Nut 3mm Black Shakeproof Washer 4 2x10x0 5 Nylon Washer B2 9x6 5mm Screw M3x6tc Black Screw M3x10tsp Black Screw M3x10tc Screw Mains Supply Mains Socket 4A 250Vac Bipolar Power S
16. crew HK HL x x x x 768226 550686 250524 231000 177690 171039 141018 141015 141012 141010 140908 140606 130175 120276 106003 106001 105008 104052 104003 103043 103042 103010 103007 103000 090856 081000 055103 055102 055101 055100 054064 054056 054054 054048 054044 054039 054038 054035 054033 054032 054028 054024 054020 054012 042605 042260 031007 030715 030485 011103 011060 011032 011020 011014 010722 768231 230569 141187 141186 141102 141012 141010 140918 140908 140212 120857 100919 100602 100035 080103 052048 052044 052028 052022 042672 042632 042625 042611 042605 042524 042425 Cpu Dsp amp AD DA Board Cpu Dsp amp AD DA Board Pcb 313069 27C4001D Eprom 4mbit DX24 Firmware 25x25mm Thermoconductor Adhesive BLM21A102STP Smd EMI Coil For Signal Heatsink Ground Leaf 20 Contacts Vert Female Connector 14 Contacts Vert Female Connector 8 Contacts Vert Female Connector 4 Contacts Vert Female Connector 6 Contacts Vert Male Small Connector DIL32 Socket AWG18 Green Cable B2 9x6 5mm Screw MAX709 Power Monitor With Reset MC33078P SOIC Dual Low Noise Op Amp RED208 Risc Cpu and Dsp AT24C64 64Kbit Serial Access EEProm 5142602 501 4Mbit Dynamic Ram 70 5 PCM1716 24 Bit Stereo Dac PCM1800 20 Bit Stereo Adc 74HCO4D SOIC Hex Inverter 74HC74D SOIC Dual Flip Flop 74HC14D Soic Hex I
17. elf Notch EQ Gain 15dB variable in 0 5dB steps EQ Bandwidth 0 05 to 3 00 octaves variable in 0 05 steps EQ freq 15 6 Hz to 16 kHz Dynamics Digital limiter on all the outputs Memories 17 FACTORY PRESETS 64 USER PRESETS MIDI General Performance with filters out Frequency Response MIDI IN THRU OUT 20Hz 20kHz 0 25dB Dynamic range gt 102dB 20Hz to 20kHz Channel Separation gt 100dB 20Hz to 20kHz Distortion THD 0 06 20Hz to 20kHz Input Metering 240 18dB 12dB 6dB CLIP relative to Clip point 14dBu Output Metering Dimensions 24dB 12dB 6dB LIMIT relative to limiter threshold setting CLIP 483x44x300 mm Weight 4 0 Kg Power suppl see label on the unit OX 7 4 768245 768231 i vO H gt Lies 8 ps 2 5 gt 768226 11 22 727620 110285 110614 Fa r y 768243 768244 731011 Testing procedure Instruments required 1 Sinusoidal signal generator 2 Dual trace scope 3 Digital multimeter Visual check Check the internal cables and sockets for possible interruptions or shorts also check the DC output voltages of the Switching Supply Unit disconnecting its output connector if appears a damage don t try to repair it but replace the unit with a new one Setup Switch off the unit Connect the signal generat
18. es 15cm Flat Cable 840826 14 Wires 15cm Flat Cable 840799 4 Wires 7 5cm Flat Cable 840776 2 Wires 25cm Crimp Terminal Cable Note All dimensions mm unless otherwise specified The screw description is defined as follows type of screw diameter X length type of head where type of screw is one of these M Metric thread B Self tapping screw for metal WL Self tapping screw for wood and type of head is one of these Il cylinder Phillips head ts flared Phillips head tt rounded Phillips head te hexagonal nut head tsp flat flared Phillips head tce cylinder Allen hexagonal head tspe flat flared Allen hexagonal head The washer description is defined as follow hole diameter X external diameter X thick Each spare part is single quantity unless otherwise specified Asterisk prefix explanation Omitted First level spare part One asterisk Second level part of previous listed first level part Two asterisk Third level part of previous listed second level part Three asterisk ENET Any request for not above mentioned part must encompass specific description including 1 Model name 2 Section name 3 Module code 4 Reference name 5 Quantity number
19. nci 87 9 i 5 ot 5078 O 74 93 25 500 98 2 R39 100 4919 16 10E dp 22 22 E 100 p27 sck 0 89 at CH 61 D5 x RIBA_IKS 28 5 9 2 4 94 21 00 M4_ws 85 21 55 2 R5410k 27 14 amp 71 R39A 10KO i 5 5 4 26 MC33078 OR a 2 me ma lave oo 85 A EQUIVALENT 7 75 0 45 470 332E LIZAFLSR OUTS oTo moor 87 7 6 zero 2200 DZ 4 r H v m m a E vans aes Moe ae B i RISA 10KO 5 1 T a ok 25 MC33078 183 teste 88 oI pote are 8 v 1 R3BAIKS 22 RsT gt 8 80 7510 16V R37 10KO zT 4 25 22 1 177 REFCLK moos 191 Ct 1 5 17 10 16 R3A_23K7 1N Exe a 2 I RAIA TKS REFOUT mooz 83 x 100 3910 16 R7_10E roe 2 Pot RST 28 5 4 5 N 1 es a yi a RGA _39K2 RIGA 10KO 21 3 Ics R50 470E P2e STBO I01 FOO 5 gt o2 24 R7A_10KO 7 40 75 44 47 RB2A 332E LIA FLSR 24 77777 STE P29 SD SWTP25 7 7 74 4 25
20. nverter Schmitt Trigger 1176 TO92 P Channel J Fet Transistor PMLL4148 Smd 100mA 75V Signal Diode 470E X4 1 16w 5 Smd Resistor Array 33E X4 1 16w 5 Smd Resistor Array 4 7 X4 1 16w 5 Smd Resistor Array 100E X4 1 16w 5 Smd Resistor Array 220K 1 10w 5 Smd Resistor 0805 47K 1 10w 5 Smd Resistor 0805 33K 1 10w 5 Smd Resistor 0805 10K 1 10w 5 Smd Resistor 0805 4K7 1 10w 5 Smd Resistor 0805 1 8 1 10w 5 Smd Resistor 0805 1K5 1 10w 5 Smd Resistor 0805 820E 1 10w 5 Smd Resistor 0805 560E 1 10w 5 Smd Resistor 0805 470E 1 10w 5 Smd Resistor 0805 220E 1 10w 5 Smd Resistor 0805 100E 1 10w 5 Smd Resistor 0805 47E 1 10w 5 Smd Resistor 0805 10E 1 10w 5 Smd Resistor 0805 10KO 1 4W 1 Metalized Film Resistor OE 1 4W Resistor 10u 16V 20 Smd Electrolytic Tantalium Capacitor 1000u 6v3 20 Vert Electrolytic Capacitor 100u 25V 20 Vert Electrolytic Capacitor 1 16V 10 Cer Cap Smd CL2 XTR 1206 100n 50V 10 Cer Cap Smd CL2 Y5V 0805 470p 50V 10 Cer Cap Smd CL2 X7R 0805 47p 50V 10 Cer Cap Smd CL2 X7R 0805 15p 50V 10 Cer Cap Smd CL2 X7R 0805 24 576MHz Quartz Resonator In Out Board In Out Board Pcb 313070 FL5R200PNT EMI Coil For Signal Hor Female XLR Socket NC3FAH Neutrik Hor Male XLR Socket NC3MAH Neutrik 6 Contacts Vert Male Connector 8 Contacts Vert Female Connector 4 Contacts Vert Female Connector 2 Contacts Hor Male Connector 6 Contacts Vert Male Small Connector 5 Poles Din Horizontal Female
21. or to the IN A XLR socket and set it at 1KHz 0 775 OdBu Connect the digital multimeter to the OUT 1 XLR socket and set in dBu scale Connect the scope CH1 probe tip to the pin 2 OUT 1 socket and the CH2 probe tip to the pin 2 OUT 3 socket a single gnd clip must be connected to a socket ground 1 Note If you use a balanced signal generator you have to check a balanced output signal level or if you use an unbalanced signal generator you have to check an unbalanced output signal level in this last case you have to check always the negative signal circuitry in either pin 3 of XLR input and output sockets refer to schematics Control Panel Test Press and hold the MUTE 3 and MUTE 4 buttons while switch on the unit a semi automatic test starts and goes on with the following steps 1 Leds must switch on sequentially 2 Press the MODE button the display shows KEY 1 3 Press the PREV button the display shows KEY 2 4 Press the LEFT button the display shows KEY 3 5 Press the NEXT button the display shows KEY 4 6 Press the RIGHT button the display shows KEY 5 7 Press the ENTER button the display shows KEY 6 8 Press the ESC button the display shows KEY 7 9 Press the MUTE 1 button the display shows KEY 8 10 Press the MUTE 2 button the display shows KEY 9 11 Press the MUTE 3 button the display shows KEY 10 12 Press the MUTE 4 button the display shows KEY 11 13 Turning the DIAL encode
22. ound M F faston connector with the same signal name inscribed ground Al ENTION Observe precautions when handling electrostatic sensitive devices code 270252 GENERALMUSIC S p A Sales Division 47842 5 in Marignano RN ITALY Via delle Rose 12 Phone 39 0 541 959511 Fax 39 0 541 957404 Internet www generalmusic com GENERALMUSIC INPUT section Connectors DX 24 TECHNICAL SPECIFICATIONS 2 x XLR F Nominal input sensitivity OdBu 0 775 Input Impedance 30kOhm electronically balanced Maximum Input Level 140 Inout Gain Output Section Connectors 30 6 dB variable in 0 5 dB steps 4 x XLR M Output Impedance 600 Ohms electronically balanced Nominal Output Level 0 dBu Maximum Output Level 14 dBu Output Gain 30 6 dB variable in 0 5 dB steps Minimum Total Delay Time 1 224mS DSP Section A D converters D A converters Internal dynamics Sampling frequenc Configuration 2 WAY STEREO 2 3 4 WAY MONO Crossover Filters Type Bessel Butterworth or Linkwitz Riley Crossover Filters Slope 6 12 18 24 or 48dB per octave Delay Step 21 microseconds minimum Max Delay time 582 ms inputs 189 ms outputs EQ filters Up to 30 maximum depending on the crossover slope EQ Type Peak 6dB Lo Shelf 12dB Lo Shelf 6dB Hi Shelf 12dB Lo Sh
23. r clockwise the numbers at the right of DIAL text on the display increase turning counterclockwise decrease MIDI test Establish a loop connecting a MIDI cable between MIDI IN and MIDI OUT sockets the display shows the number 85 at the right of MIDI text IN A test Check the OUT 1 level it must be within 0 0 5dBu 775 50mV Check the OUT 3 level it must be within 0 0 5dBu 775 50mV Sweeping the generator frequency from 20 to 20KHz no level changes must be detectable IN B test Move the instruments connections to IN B and OUT 2 and 4 respectively Check the OUT 2 level it must be within 0 0 5dBu 775 50mV Check the OUT 4 level it must be within 0 0 5dBu 775 50mV Sweeping the generator frequency from 20 to 20KHz no level changes must be detectable RESET MEMORY Switch off the unit Press and hold the PREV and LEFT buttons while switch on the unit the display shows INITIALIZING ALL MEMORY 5 Release amp DX editor The DX editor program permits to edit the DX24 loudspeaker processor parameters remotely using a notebook PC Windows based computer via a MIDI interface let up to 32 DX24 processors must be controlled remotely DX editor be downloaded free from LEM website http www lemaudio com To use the DX editor your DX24 unit must have an O S Release at least 2 0 or upper The O S Release appears on display while you turn on the unit If you want to upgrade you
24. r unit you have to replace the 550686 Firmware eprom IC13 position with a new one with the lastest contents this eprom may be ordered from Generalmusic DX24 WIRING BLOCK DIAGRAM 0073 OUTI OUT2 OUT4 768231 INZOUT BOARD MIDI IN MIDI THRU MIDI OUT 110285 MAINS SWITCH 5 110514 MAINS SOCKET CNS 768226 CPU BOARD 731011 CN4 768245 zZ LCD DISPLAY MODULE 768243 CONTROLS PANEL BOARD 768244 LEDS BOARD SWITCHING SNP 9541 40W BOARD DRW G BOCCATO DWGH 550721 PCEN GENERALMUSIC S p A ITALY CKD G RICCI APP F GAZZILLI REV A DATE 25 02 01 SCHEMATIC DIAGRAM DX24 ALL RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WIRING BLOCK DIAGRAM consent ay cenerarnusic CLP FROM CONTROLS 5V 2 CNTR 4 RS R W 6 ENABLE DO 8 D1 D210 D3 D412 D614 768244 LED METERS BOARD 768245 16x2 CHARACTERS BACKLIGHT LCD MODULE RIOA 1K2 DL4A SN
25. witch SNP9541M 40W Switching Supply Unit Controls Panel Assembly 2x16 Characters Lcd Module 14 Contacts Vert Male Dual In Line Strip WM C1602N 2GLYC Wintek 2x16 Characters Lcd Display Led amp Meters Board Pcb 313074 Single In Line Vert Male Strip specify contacts 74HC4094M1R SOIC 8bit Shift Latch Register Led Smd Yellow Led Smd Green Led Smd Red 1 2 1 10w 5 Smd Resistor 0805 10E 1 10w 5 Smd Resistor 0805 100n 50V 10 Cer Cap Smd CL2 Y5V 0805 Controls Panel Board Pcb 313073 14 Wires 15cm Latch Transition Flat Cable 6 4mm Led Spacer 20 Contacts Vert Female Connector 14 Contacts Vert Female Connector 2 Contacts Hor Male Connector Microswitch 12V 50mA 0 25mm Dial Encoder with 30 Snap H 15mm Alps 74HC165D SOIC 8bit P To S Shift Register 74HC4094M1R SOIC 8bit Shift Latch Register 74HCO4D SOIC Hex Inverter 74HC14D Soic Hex Inverter Schmitt Trigger PMLL4148 Smd 100mA 75V Signal Diode 3mm 60deg Diffused Red Led 4K7 X4 1 16w 5 Smd Resistor Array 100K 1 10w 5 Smd Resistor 0805 10K 1 10w 5 Smd Resistor 0805 5K6 1 10w 5 Smd Resistor 0805 3K9 1 10w 5 Smd Resistor 0805 1 2 1 10w 5 Smd Resistor 0805 1K 1 10w 5 Smd Resistor 0805 4E7 1 2W 5 Resistor 220u 25V 20 Vert Electrolytic Capacitor 10u 25V 20 Low Prof Vert Electrolytic Capacitor 100n 50V 10 Cer Cap Smd CL2 Y5V 0805 10n 50V 10 Cer Smd CL2 X7R 0805 47p 50V 10 Cer Cap Smd CL2 X7R 0805 Rubber Switch Actuator M2 Nut M2x6tc S
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