SERVICE MANUAL
Contents
1. sov 33vx 757987 MAINS FILTER BOARD E 19v 768005 MAINS FILTER BOARD U 2 768042 POWER FROM TO_POWER A POWER AMPLIFIER BOARD cr ovs DD gt 059 DIODES BRIDGE BN IN Au SU LY BOARD ja CO n T4A EU S raw TBA US 230VAC 15 50 60Hz EU I ZS gt 115VAC 15 50 60Hz US Te CN6 A A em 4 CHASSIS 33v 4 E sis s12 82v sit C2 OSR1100 GROUND a 25v 51 cw PCB 315016 ue sovs alia FS T6 3A on Ove 2 oO s o H da S gt 3 m ss of 3 TES TE o gt Pz s s 52 CIS sano 10v CN6 C z z SI 3 8 EAN 2 1 S 07 da L s ele ffs ois DI oso kerczs A ese Te2 s gt CNS A ETA d BFL ajs 5 2 s2 GB 5 se 45V ss co 514 l 82V 513 UT g oo im CN6 8 F7 TBA Re x 2 S16 or lt O E 8 E r D E 768128 CONVY ROCESSOR BOARD Top z D Cu ES zo NVY LOUT S 1 CONVY Lou sb sem ENE BER cn2 85 9 convr HOUT S CS vac 1 Dew seno 3 25V 2 SEI SE W TE C34 15P R25 100 R38 3K57 N SE 3 275 e SEND I N z 1 15V 4 zzz ey Y Div Le 3 R24 Suen 1 ur DE 5 z e A H TR H E aje pu causo d z T A Ena 21232. 237062 TRANSFORMER EU 237063 TRANSFORMER US 230VAC 15 50 50Hz EU 115VAC 15 50 60Hz ORW M PALANGHI DWG 550547 PRINTED CIRCUIT CODE GENERALMUSIC S p A ITALY CKO I BATTELLI DISK 46PART 1 1 SCHEMATIC DIAGRAM TM15 2 ACTIVE Atk RIGHTS ARE RESERVED NO COPIES OR REPRODUCE THIS DOCUMENT WITHOU BLOCK amp WIRING CONNECTIONS WRITTEN CONSENT BY GENERALMUSIC APP C ZUCCATTI REV 28 04 97 A237064 TRANSFORMER ASSY EU 237065 TRANSFORMER ASSY Ss SIGNALS MIDI DATA
3. DRIVER IC1 1C2 COMPRESSION 15V SEND 15V COMP DRV SIGNAL ORV AGND 2 sono 2 SIGNAL ORV STE n s2 come DRV LOW OUT 25V 566666466 PCB 317179 AC DEI PCB 319044 SEND 768043 POWER AMPLIFIERS BOARD 15V SPEAKER 15 RECTIFIER t EARTH ro D4 POSITIVE POSITIVE 768128 CONVY PROCESSOR BOARD ANLAT STAG l A D PONVERTE EEPROM AE DC DETECT D A CONVERTE TEMPERAT PROTECTION SENSOR CIRCUIT CONVY IN MUTE CONVY HOUT CONVY LOUT DC SIGNAL DETECT 768042 POWER SUPPLY BOARD TWEETER Auer Vcc3 PCB 317191 NEGATIVE 767987 MAINS FILTER BOARD EU 768002 MAINS FILTER BOARD US 768030 DISPLAY BOARD POSITIVE DOWN UP POWER DISPLAY MIDI STAGE SWITCHES pi Lo
4. R56 _4K7 I D27 4 R29 470E C28_100N ro 148 c27 100P a er Lauer SS tC c31 2N R53 100E au R24 4E7 R16 68E 1 06 4002 C18 220P R22_470E 016 FEGB CLIP DETECT 039 4002 R67 10K DC DETECT R64 4k7 Pt TI 017 10v 021 A C19 100N CS 100 c13 47u 100N R107 70 1w SIGNAL DETECT a HIGH OUT REO 56K 028 4002 425V 15VL a A TWEETER LEND SIGNAL ORV RES 10K 1SVL COMP ORV TI PROTECTION CIRCUIT 034 7V5 R83 100K Se TEMP SENSDR TAF Tal y 77 D3g 7V5 R93 D30 4148 TI IO CLIP DETECT 037 4002 R94 10K R147 3K32 R47_3K01 map Ska C74 6N8 2 5 R59 toko C43 2U2 A74 4K7 ERR AMP 033 7V5 032 7V5 C47 per A7S_100K mo 4K7 2N II DI D42 4148 gt H PK c57 220P ol K C54 iN H H R137 390E R142 0E22 057 4002 oss Fess C70_100N rat ces 47U Ha HA 4 R109 4E7 C60 220P s tad R118 470E R122 658 Res 330E Cap 22U A73 E EA ABO_47K LOW DC DETECT R92_47K TI 25V VAC DE
5. SEND 15V POWER SUPPLY FROM POWER SUPPLY BOARD CN2 Ea 470E At a sov cs D4 es wat R88 470E rot 1 100N R115 467 R130_470E AR R133 0E22 R132 BES rH A134 0E22 cse 220P soot R103 820E cse 47u KETU LC 052 4002 c63 220P NW 055 FE6B 058 4002 gt t R138_390E R143 0622 Mv R144 0E22 Pt a C71_100N 100 Cea 47u 1008 R120 4E7 SWC67 33N FROM POWER SUPPLY BOARD PCB 319044 CHASSIS GROUND 768126 INPUT OdB IN LINK SIGNAL INPUT CO amp MIDI INT WODFER cio 220 R9 15K0 R7 100E AB 15KO 1 c12 aus vr SKB ICi B TL072 VOLUME MIDI AS 100E AIS 10K FROM POWER SUPPLY BOARD CN2 AGND 1 SIGNAL DAV C14 2u2 50v L4 FLSA R10 33K R22 220E COMP DAV us D 7v5 2 3 HSV 4 SND 5 6 7 BE SGNO SEND CONVY IN 8 3 TO CONVY BOARD CNI IC1 A TLO72 COMPRESSOR ADJ svo L3 FLSA R21 5 TI 220 MIDI DATA 1C2 F 74HCO4 sock 1C2 C 74HC04 CS 100N 4 IC2 E 74HC04 11 10 1C2 D 74HC04 L2 FLSA R20 220E
6. s 8 i C mp 4K7 TO CONVY PROCESSOR BOARD CN3 1C2 8 74HC04 PCB 313019 DRW M PALANGHI Dust 550549 PCB 319044 313019 GENERALMUSIC S p A ITALY CKO I BATTELLI DSK 46 PART 1 1 APP C ZUCCATTI REV 28 04 97 SCHEMATIC DIAGRAM TM MAIN FILTER INPUTS BOARD 15 2 ACTIVE ALL RIGHTS ARE RESERVED NO COPIES POWER AMPLIFIERS amp SUPPLY BOARD JOR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC Spare Parts 887074 XLR MALE FEMALE SIGNAL CABLE mt 1 5 768030 DISPLAY amp SETTING BOARD 768126 SIGNAL INPUTS CONTROLS 8 MIDI INTERFACE BOARD 768043 POWER AMPLIFIER BOARD 768042 POWER SUPPLY BOARD 768128 CONVY PROCESSOR BOARD 767987 MAINS FILTER BOARD EU 768002 MAINS FILTER BOARD US 667613 CONTROLS PANEL 667610 METAL GRID 659027 CYL KNOB WHITE CAP 717054 WOODEN CABINET 347287 PLASTIC HANDLE 347286 HANDLE SET 347187 RUBBER HANDLE 237064 TRANSFORMER EU 237065 TRANSFORMER US 229030 2 COMPRESSION DRIVER TWEETER 347283 COMPRESSION DRIVER HORN 227038 15 SPEAKER 177476 AMPLIFIER HEAT SINK 177325 STAND ADAPTOR 150591 DISPLAY RED GLASS 141202 XLR MALE SOCKET 141184 XLR FEMALE SOCKET 140526 GRAY BUTTON 140212 DIN SOCKET 130297 MAINS CORD EU 130283 MAINS CORD US 120319 WL 4x15 MAINS CORD SCREW 120125 M5x35 MAINS CORD SCREW 120111 M6x25 MAINS CORD SCREW 120108 M5x30 MAINS CORD SCREW 120099 M4x25 MAINS CORD SCREW
7. 12MHz Ceramic Resonator With Capacitors 557026 AT89C55 12JC Programmed CPU 105001 CONVY Dsp Convolver Power Supply Board 768042 Power Supply Board PCB 317191 141060 Con V M 12c Mini Mate Burndy 141013 Con V F 10c P 1 27 Mmatch Amp 140081 H 2c P 10 Terminal Block 140069 H 3c P 10mm Terminal Block 100060 7815 15V 1A Voltage Regulator 100059 7805 5V 1A Voltage Regulator 100049 7915 15v 1a Voltage Regulator 080606 GBU8D 8A Rectifier Diodes Bridge 080168 WO2M 1 5A Rectifier Diodes Bridge 030882 10000uF 50V Snap In Electrolytic Capacitor 030881 10000uF 50V Snap In Electrolytic Capacitor 030866 4700uF 100V Snap In Electrolytic Capacitor 030858 4700uF 25V 20 Vert Electrolytic Capacitor 030560 4700uF 80V 20 Snap In Electrolytic Capacitor Signal Input Controls amp MIDI Interface Board 768126 Signal Input Controls amp MIDI Interface Board PCB 313019 757942 Photores Coupler 141202 Hor Male XLR Socket M21bc Nuova Asme 141184 Hor Male XLR Socket NC3FPRH Neutrik 141064 9 Contacts Hor Male Connector O 8 141010 140212 100602 100061 100035 090194 090183 080734 080245 080103 074570 070125 140526 768030 141015 140526 080717 767987 768002 230565 140010 110113 110114 020493 010719 727524 768043 141059 141058 110316 110307 100084 100061 090920 090917 090916 090201 090200 090924 090923 090920 090919 090918 090917 090916
8. 090863 090862 080282 080261 080245 080241 080171 080156 080103 070106 070082 080819 080607 080606 A Contacts Vert Female Connector 2 Horizontal Female 5 Poles Din Socket id 74HC04 Hex Inverter TL072 Dual J Fet Operational Amplifier 6N138 Optocoupler E BC560 TO92 LN Pnp Transistor Ej BC550 To92 Ln Npn Transistor ki Led 2 5x5mm Rect Diff Red Grn LED S 7V5 IW 5 Zener Diode 1N4148 100mA 75V Signal Diode 5K lin 31 clicks Potentiometer 1K 20 Vertical Linear Trimmer Gray Button Display amp Setting Board sa Display amp Setting Board PCB 319046 Con V F 14c P 1 27 Mmatch Amp Microswitch 100V 100ma 0 8mm HDN1105 7 Segments Display Mains Filter Board Mains Filter Board Pcb 315016 EU Mains Filter Board Pcb 315016 US 2 5mH 250V 3A AC Line Filter 3 Contacts P 10 Vert Terminal Block Fuse Clip 5x20mm 6A max EU Fuse Clip 6 3x32mm 10A Max US 100n 250Vac MKP EMI Capacitor Siemens 2n2 250Vac 7A 20 AC Line Y Filter Murata Power Amplifier Assembly Power Amplifier Assenbly ki Power Amplifier Board PCB 319044 9 Contacts Vert Male Connector 6 Contacts Vert Male Connector Relay 24V 1 Switch no 16A 250V Relay 24V 2 Switch 5A 250V TLO74 Quad J Fet Operational Amplifier TLO72 Dual J Fet Operational Amplifier Mje803 TO126 Npn Darl Transistor MJE350 TO126 Pnp Transistor MJE340 TO126 Npn Transis
9. 120098 M4x20 MAINS CORD SCREW 110614 MAINS INLET EU US 110297 2 POLES 2 POS SLIDE SWITCH 110291 MAIN SWITCH EU US 180637 ADHESIVE GENERALMUSIC LEM BRAND 37 177474 DRIVER HOLDER ON JN o Om bk WOM 0 Go Gy bal NO BO bal bal S ROP bal bal BI es lt e a 1 e 0 N O OO NO O G WON A DOAN Dag aw Mm oO WW WO Co oO a wo Inputs Controls Panel D D e amp LEM TM 15 2 active BLAMBLIFIED DIGITALLY PROCESSED by GENERALMUSIC LOUDSPEAKER SYSTEM A PRESET MES wa DAN MIDI i Di N 2220203 3 REIN INPUT odp VOLUME MIDI os O LINK SIGN IN THRU COMP A ee roueg ac AVIS waaur DE CHOC ELECTRIQUE NE PAS OUVRIA WARNING to renuce THE RISK oF FIRE OF ELECTRIC SHOCK bo NOT EXPOSE THIS Se PRODUCT TO RAIN OF MAISTUF E Em Di manson mu bv GENERALMUSIC o q 220000 TOUR MASTER 15 2 ACTIVE Technical Specification SPEAKER SPECIFICATIONS COMPONENTS High 2 driver with controlled directivity hom Low 15 low frequency speaker HGH section POWER HANDING E LOW secon POWER HANDING woms IS EIA RS 426A A PB IVPEDANCE nominal High o gt DEE CONSTRUCTION Cabinet birch playwood Finish Black scratch resistant paint Protection grille metal grille
10. Dag 10ko Ta 2 IC6 A MC33079 1 ECH Fi T2 5A A ai ma fag je wre NI SE oO a Za 7 ia o 1 pss sp g n g 8 Py oh D fa E esu nas roko 1c12 A TLop2 a ak Fu o m 12 sv o z ASt_10Ko IC1 A AD1865N S 2 A ESE Ri3 330 a A HA eem Ueorza UNUSED GATE Za a4 SL St 7 33558 CH a29 geg Saat de 12 Eje 1C12 8 TLop2 54 lovin EBEN acko 53 PASA Tz 7 5 a xx 68 Ri4 330 1 GIS 5 a 6 IC7 A ADMOD73 51 over 2 wcko 58 EN a 5 x 8 LL E r AR gg n 330 Es S 103 7315 ms ses szivas ROUT wick 105001 I s c2s one Cup Y H ARST az 330 l_Slavarar CONVY oro 13 3 r F3 T8OOMA K 13 27 7 14 iar 2 5 100V 5 3 x 2 43 vera g tour 27 ADATLI DSP ort 8 E S H 8 5 1c2 8 MC33078 _ y Hua 14 vron Haer 28918 330 19 visi op2 15 Siac 02 wo2M 15V 5 in E x a a 3 nep ESA ops 34 z 3 SE Sen Boa Ta 8 v S 8 wi 125 vinz ops 35 ER IN BUT SE gt 6 ee o zo 18 lvi wl 28 11n2 test E s 2 2 3 2 eg d qu Py CN4 A 84 24 3 ave 8 lt 0 R45 68E 2 wl DEENEN A A R a 8 Ce Sw 17 Jans N SEET GE AE IR 1 H 2 9 m 8 a nc 23 weu 3 3 2 8 E c24 one Ln 6 W x gt e x 43 41 504 8 5 Shen ea 4 SE E mE Ab SE 2 El 5 1C3 A CONVY u 2 ce 15 v oL PwROWN d D E d i E sE 5 N I lt z 813 1 z 8 s e n vr whu w w 8 o lt G KKH sjsjsjsjs 8 as ikso ne 3k92 n 3k92 y PCB 317191 AE n fin SETE
11. WEIGHT DIMENSIONS 470x790x465 LxAxP 185x311x183 WxHxD PROCESSOR SPECIFICATIONS INPUT Sensitivity dB 0 0 775Vrms Impedance 30 balanced 15 unbalanced AD comer DA converter Dynami range e fe Sampling rate CT Ga CROSSOVER Frequency Hz 1350 HIGH section POWER ANPLFER LOW section POWER AVPLIFIER W continuous e AVPLFERS DISTORTION CONTROLS VOLUME control UP amp DOWN selector buttons MIDI button Earth Lift DISPLAY 2 digit display WEN SIGN COMP LED POWER SUPPLY 230V 15 50 60Hz 115V 15 50 60Hz SYSTEM SPECIFICATIONS FREQUENCY RESPONSE SENSITIVITY SPL 1W 1m 98 DISPERSION ANGLE horizontal 60 10 vertical Fr 40 7 DIRECTIVITY Factor Q DIRECTIVITY Index Di Note the system specifications have been calculated using PRESET n 1 FLAT BIAS ADJUSTMENT Instruments materials and tools Audio Generator Dual Trace Oscilloscope Digital Voltmeter or Multimeter 40 500W and 82 100W Resistors Temperature Meter Setup Connect the Audio Generator to the input and set its output at 2KHz sinusoidal signal Insert the temperature sensor through the interstize between the heatsink and R93 PTC Connect the 4Q 500W resistor to the amplifier output instead of the woofer speaker and 8Q 100W instead of tweeter speaker Connect the oscilloscope probes setting 20V div 1ms div on the loads Insert the voltmeter terminals on R107 ADJUSTMENT PROCEDURE 1 Turn on
12. 1 Display Red Glass 110614 Mains Socket 110291 Power Switch 110037 T6 3A Fuse 6 3x32mm US 110035 T2 5A Fuse 6 3x32mm US 110034 T800mA Fuse 6 3x32mm US 110022 T8A Fuse 6 3x32mm US 110029 T4A Fuse 5x20mm EU 110023 T8A Fuse 5x20mm EU 110018 T6 3A Fuse 5x20mm EU 110015 T800mA Fuse 5x20mm EU 110014 T2 5A Fuse 5x20mm EU 667506 Left Side Bar 717054 Wooden Cabinet 667610 Metal Grid 347287 Plastic Handle 347286 Plastic Set 347283 2 Comprission Driver Horn 347187 Plastic Grip 229030 2 Compression Driver Tweeter 227038 15 Speaker 177474 Driver Holder 177325 Stand Adapter 130297 Mains Cord EU Version 130283 Mains Cord US Version CONVY Processor Board 758128 CONVY Processor Board PCB 313020 230569 FL5R200PNT EMI Coil For Signal 141059 Con V M9 C Mini Mate Burndy 141015 Con V F 14c P 1 27 Mmatch Amp 141013 Con V F 10c P 1 27 Mmatch Amp 141010 4 Contacts Vert Female Connector 100943 MC33079 Quad Ln Op Amp 100919 MC33078 Dual LN J Fet Operational Amplifier 100737 ADMOD79 2ch Ad Delta Modulator 100643 AD1865N Dual 18bit Dac 100642 TS93C46 1Kbit Eeprom Memory 100612 74HC374 Octal D Type Flip Flop 100061 TLO72 Dual J Fet Operational Amplifier 100059 7805 5V 1A Voltage Regulator 100058 7905 5V 1A Voltage Regulator 080103 1N4148 100mA 75V Signal Diode 050494 Resistor Array 10K X5 1 8w 5 050492 10Kx8 1 8w 5 Resistor Array 010722 24 576MHz Quartz Resonator 010720
13. DISPUE 14 5 5 asv cer toon DISPLAY pal ar svD 11 FROM TO DISPLAY amp SETTING B CNI 2 c40 10u D ona S S al A 2 3 3 2 BEN 8 S ZS a ET S D x ohn 5 N l T M 100N ojo AGNO Tt Med z er 1 ad 3 8 PCAH319046 a St eu osvo m je siv A rE Sg L1_ELSR w 2 _ GNO 3 8 8 e 6 i our BL E eu 2 5 z 2 Ica 7905 LEND 8 ZS K Y 10 LEND S z 5 5 PCB4313020 ORW M PALANGHI ows 550548 pces 317191 319046 313020 GENERALMUSIC S p A ITALY Cep G RICCI DSK 45 PART 1 1 SCHEMATIC DIAGRAM TOUR MASTER 15 2 ALL RIGHTS ARE RESERVED NO COPIES CONVY PROCESSOR BOARD POWER SUPPLY BOARD OR REPRODUCE THIS DOCUMENT WITHOUT APP C ZUCCATTI REV 03 03 97 DISPLAY amp SETTINGS BOARD WRITTEN CONSENT BY GENERALMUSIC SIGNALS FROM CONVY PROCESSOR BOARD CN FROM TO POWER SUPPLY BOARD Ass cauen R31 R146 3K32 5K49 R145 3K32 Rss c72 Eug R34_1k00 R36 3k92 C29 025 7v5 1w c39 470P HA 1KO 100N 029 7v5 Ww R48 15K Cap op ASS _4K7 C26 47U Rat 100 D26 4 100 a 148 c25 100P all Zoot 03 4002 DIS 4002 012 FESB Tol C14 Tool 100N a e R23 467 R25 1k roe 2TR12 3 MJE 1802 a ce 47u rd C4 100N Hot 470E 1 L 1 022 4148 020 4148
14. Index amp Warnings Block Diagram amp Wiring Connections Power Supply Board CONVY Processor Board Display amp Setting Board Power Amplifier Board Signal Input Controls amp MIDI Interface Board Mechanical Referements Parts List Technical Specifications amp Adjustments Spare Part List co O Fa CD GENERALMUSIC 8 u3 Sales Division 47842 S Giovanni in Marignano RN ITALY Via delle Rose 12 tel 0541 957404 fax0541 957404 http www generalmusic com ERVIGE MANUAL wm 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 hemat Ip Di Hl am For a correct operation of the instrument after having switched off be careful to wait at least 3 seconds before switching on again lt Soldering point 4 Supply voltage To improve the device s specifications the schematic diagrams may be subject to change without prior notice eS a e Male connector Logic supply ground ATTENTI ON Schematic Notes SN CODE 277322 gt Female connector Analog supply ground Observe precautions when handling MF faston connector Signal ground electrostatic sensitive devices A components marked by this symbol have special safety characteristics when replacing any of these components use only manufacturer s specified parts The u micro symbol of capacitance value is substituted by U The Q ome
15. RS 10 o ajja Sd eal bd bel bd Pa gt l z 2 1C2 A MC33078 J 5 E l R16 1k62 1C6 C_MC33079 5 E GES g wo le R42 6K49 E g v Zx v gt Wei ma i un a 8 x css eu k 2 5 100V S Tx zE 3 vun 14 4 An2 10k xe Re 3 1 106 0 MC33079 Ty ces ene 3 z E IC10 A 74HC374 Pr x ASS 470 T d 100V q Im e Es 470E 2 8 E u R60 470E Ce 100N Cen 100N z 1 s eon La REZ 470E R22 470E za CH zsihoe 100v Qi cy 470E 1C11 B MC33078 a ven Won s 38 Wi CAE 4708 ell lt a R58 470E 1C11 A MC33078 o lt pPo 6 37 4 ba ct r 36 8 R54 470 m Die 4 t CH E 2 ASS 470E E D E me Eero 2 BEE e o 768030 DISPLAY amp SETTING BOARD svo H A T Ct ales PSEN _Pi 1 sk g Ex gpa e 8 l 3lor E wc i n AB 100K rst Or s 5 4 00 tors a gut svo gt u H 4 o H H nal ke o AR3 10K XS j1 k AIS 1K ICS A TS93C46 aw m INC ops a ct on SVL NC Dee cz CS A o 5 T DOWN z SvL w nz Su MIDI DATA Men 24 gt ar P3 0 eso S 58 AGND P3 1 P2 1 25 s lt 1 weg rot 470 kan P2 2 26 uP eo r w v Dt 470 P3 3 P2 3 27 H AL ane 5VD ARI 10K X8 2 ER R35 470E P3 4 pa 28 35 H 4 swi ER d pos P2 s 29 DISPLAY 58 z ve P2 6 30 zz D Ld P3 7 p2 7 31 FROM TO CONVY PROCESSOR s 37 PRESET es E 3 e O12 CNA ay mem oF Kai 15V LGND 4 DASPU E Toss 421 6 Top T7 5 14 2 Jr E DISPUC e DISPU G DISPU G 10 Le e ia CEE DISPU D 12 mp Tc2 C E 1C6 E E GE DISPU E 5 mc33078 a wc33078 GHP d
16. ga symbol of resistance value is substituted by E The electrolytic capacitors are 25Vdc rated voltage unless otherwise specified All resistors are 1 4W unless otherwise specified All switches shown in the OFF position All DC voltages measured to ground with a voltmeter 20KOhm V eS El Test point Chassis ground Ss lt Flag joined with one or more flags with the same signal name inscribed 768030 DISPLAY amp SETTINGS BOARD 768128 CONVY PROCESSOR BOARD BLOCK DIAGRAM 767987 EU VER 239V 237062 TRANSFORMER 230V 768005 US VER 115V 237063 TRANSFORMER 115V MAINS FILTER BOARD PCBH319046 768126 SIGNAL INPUT CONTROLS amp MIOI INTERFACE CG LGND 768126 SIGNAL INPUT CONTROLS amp MIDI INTERFACE BOARD 768042 POWER SUPPLY BOARD Kee MIDI DATA 5VD 82V RECTIFIER RECTIFIER SUPPLY Vec3 gl gt 3 gt PCB 3 19030 DVERDRV OVERFLOW CONVY SGND CONVY IN CONVY SGND CONVY HOUT CONVY SGND CONVY LOUT Da o a u of y LE 768043 POWER AMPLIFIERS BOARD 5V REGULATOI o z st HIGH DUT gt CONVY IN SEND
17. the amplifier pressing UP DOWN and MIDI simultaneously check that the display shows C 2 Set the input signal to OdB 0 775Vrms 3 When the temperature has reaches about 45 C 109 F set the signal input to minimum 0 or cl 4 Adjust the trimmer R111 to read a voltage of 6mV 0 1 on the multimeter 5 Check that the voltage across the R108 resistor has the same value 6 At the same temperature condition adjust the VR1 trimmer to read 2 2mV 0 1 at R24 resistor 7 Check that the voltage on the R25 resitor has the same value Veryfing 1 Increase the input level to obtain an output voltage about of 0 5Vpp 2 Check with the oscilloscope that the output signal is without a cross talk distortion and eventually slightly adjust the R111 or VR1 position until distortion disappears Note the voltage value across the R107 or R108 resistor must not exceed 10mV and the R24 or R25 resistor must not exceed 4mV LIMITER ADJUSTEMENT 1 Increase the input level to 10dB adjust the trimmer VR1 until clipping distortion disappears 2 Verify tha the led change colour from green to red 3 Re connect the speakers instead of the 4Q and 8Q resistors SPARE PARTS LIST ACCESSORIES 887074 XLR Female Male Signal Cable 1 5mt 277310 Owner s Manual ASSEMBLY 667613 Controls Panel 659027 Cyl Knob White Cap 237064 Transformer 230V 237065 Transformer 115V 15059
18. tor 2N5401 TO92 Pnp Transistor 2N5550 TO92 Npn Transistor MJL21194 NPN Transistor MJL21193 PNP Transistor MJE802P PNP Transistor MJE15031 PNP Transistor MJE15030 NPN Transistor MJE350 PNP Transistor MJE340 NPN Transistor TIP36C PNP Transistor TIP35C NPN Transistor 13V 1W 5 Zener Diode 10V1W 5 Zener Diode 7V5 1W 5 Zener Diode 5V6 1W 5 Zener Diode FEG6B 6A 100V Fast Recovery Diode 1N4002 1A 100V Rectifier Diode 1N4148 100mA 75V Signal Diode 470E 20 Horizontal Linear Trimmer 220E 20 Horizontal Linear Trimmer t PTC 70 Pth59f04bg222ts KBPC25 25A 200V Bridge Rectifier Diode GBUB8D 8A Rectifier Diodes Bridge Notes 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 asterisks Third level part of previous listed second level part Three asterisk ere ne Any request for not above mentioned part must encompass specific description including 1 Model name 2 Section 3 Module code 4 Reference name 5 Quantity number
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