General_Music_Equinox_Pro_Service_Manual电路图.pdf

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1、1 1 1 1 1 J J J J J Index Soldering point. Male connector. Female connector. M/F faston connector. Test point. Supply voltage.Logic supply ground. Analog supply ground. Chassis ground. Earth ground. Flag joined with one or more flags GENERALMUSIC S.p.A. Sales Division: 47842 S.Giovanni in Marignano

2、(RN) ITALY - Via delle Rose, 12 Phone 0541/959511 - Fax 0541/957404 - GENERALMUSIC on the NET: Opening & Keyboard Disassembling Instructions2 Layout3 Assembly 5 6Supply, Mixer, Analog I/O and Controls & Midi I/O Schematics, Adjustment Table 7 Block Diagram and Test Procedure & Adjustments 8Keyboard

3、L & R Contacts and Interface Schematics 9 Cpu & Sound Generator Schematic (Part 1/2) 10 Cpu & Sound Generator Schematic (Part 2/2) 11 Vocal Processor Schematic & Pcb Layout 12 Supply, Mixer, Analog I/O and Controls & Midi I/O Pcb Layouts 13 Spare Part List 14 Timings Table Controls Panel and Interfa

4、ce Schematics Controls Panel and Interface Pcb Layouts 4 Cpu & Sound Generator Map Cpu & Sound Generator Pcb Layout 15 16 17 SERVICE MANUAL CODE: 270234 Warnings with the same signal name inscribed. Address ATTENTIONObserve precautions when handling electrostatic sensitive devices. Notice Service mu

5、st 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

6、 improve the devices 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 manufacturers specified parts. The () micro symbol of capacitance value

7、 is substituted by U. The () 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 in the OFF position. All DC voltages measured to ground with a volt

8、meter 20KOhm/V. % RadioFans.CN 收音机爱 好者资料库 J J J J J 2 2 2 2 2 APP. CKD DRW REV: DISK: DWG# PRT: PCB#GENERALMUSIC S.p.A. ITALY ALL RIGHTS ARE RESERVED, NO COPIES WRITTEN CONSENT BY GENERALMUSIC. OR REPRODUCE THIS DOCUMENT WITHOUT Boccato Riccobelli Pannelli 550184 51/1 30/11/99 Opening Instructions K

9、eyboard Disassembling Instructions K2K2K2 K1K1 K2K2 K1 Opening Instructions Disconnect the instrument from the mains. To separate the keyboard from chassis, carefully turn the screws marked byK1 Carefully turn the instrument over and unscrew the screws bottom chassis from horizontal to vertical, rem

10、ove the Keyboard Disassembling Instructions NOTE: To remove a sharp key before you must remove the near natural keys. Unlock the key appling not much strength Remove the key return spring. TP10 marked with the arrows. Hold the chassis (top & bottom) tightly and turn the istru- ment the right way up,

11、 lift off the top chassis as shown by side with care without forcing or disconnecting the cables. (open the instrument before proceed) , put it back horizontal, holding top & bottom chassis move these tightly to the end of your job table, now unscrew the screws marked with K2 to reassemble the keybo

12、ard & the chassis follow the instru- ctions in reverse order. Keyboard Separation RadioFans.CN 收音机爱 好者资料库 3 3 3 3 3 J J J J J TRANSPOSE CONTROLLERS ENVELOPEFILTERLFO LIBRARIES ENTERESCAPE LAYER1LAYER2LAYER3CLICK MASTERINPUTLEVELATTACKDECAYRELEASECUT-OFFRESON.DEPTHRATE CONTRAST GAIN 2GAIN 12121RIGHTL

13、EFTIN 1OUT 1THRU 1IN 2OUT 2THRU 2COMPUTERVOLUME12DAMPERSCSI USER DRAWBARS 9101112131516 OCTAVESOLOFX OFF F1F2F3F4 SOUNDPERFORMDRUMSAMPLE MIDISYSTEMDISK 123 654 987 0 UNDOHELPSTORENOTEPAD PERC 4SLOWFAST 14 23 PERC 2 46 2932357248 49 50 51 52 5358565759 6961 MODEL SERIAL NUMBER AC SUPPLY SPECIFICATION

14、S Note: for descriptions and codes refer to Ref column on spare part list above on this manual. 6263606164656667 54476855 4130 40 12 APP. CKD DRW REV: DISK: DWG# PRT: PCB#GENERALMUSIC S.p.A. ITALY ALL RIGHTS ARE RESERVED, NO COPIES WRITTEN CONSENT BY GENERALMUSIC. OR REPRODUCE THIS DOCUMENT WITHOUT

15、Boccato Riccobelli Pannelli 550185 51/1 18/02/99 EQUINOX 88 PRO Layout for descriptions see the REF column on Spare Part List further on this manual. RadioFans.CN 收音机爱 好者资料库 J J J J J 4 4 4 4 4 Pcb#315157 Pcb#315092/1 CN3 CN4 TO L CONTACTS BOARD TO R CONTACTS BOARD Pcb#315123 30 28 CN2 CN6 Pcb#850-9

16、541-M TB1 TB2 CN1 4443 Pcb#315151 CN5 CN13CN11 CN3 CN7 CN8 CN4 CN7 CN6 CN2 CN1 CN2 24 404145 32 63346 97382 Pcb#315163 1110 CN1 Pcb#315113 CN1 CN2 CN5 CN6 CN2 CN3 CN1 19 For part descriptions and codes refer to spare part list above on this manual (REF column). CN3 VR11 Pcb#315153 PITCH ADJ Note: 34

17、36 CN4 CN1 3742 APP. CKD DRW REV: DISK: DWG# PRT: PCB#GENERALMUSIC S.p.A. ITALY ALL RIGHTS ARE RESERVED, NO COPIES WRITTEN CONSENT BY GENERALMUSIC. OR REPRODUCE THIS DOCUMENT WITHOUT BOCCATO RICCOBELLI PANNELLI 550186 51/1 10/12/99 EQUINOX 88 PRO for descriptions see REF column on Spare Part List fu

18、rther on this manual. 26 CN3 CN7 CN5 CN4 CN6 Pcb#315024 CN1 2MB DRAM CN15 CN10 VR1 Pcb#315150 SIMM18 CN8 8MB DRAM CN17 CN5 CN3 CN12 2223 SIMM17 CN16 252117-18AFT ADJ2027 Pcb#315119 SHARP KEYS AFTER TOUCH NATURAL KEYS AFTER TOUCH CN CN CN 3130 Pcb#315088 141312 CN1 51615 Pcb#315149 3839 7040 41 72713

19、573 5 5 5 5 5 J J J J J Test Procedure and Adjustment The procedures that follow must be executed subsequently in the order specified. These procedures are not intended to repair a fault but only to check the correct instrument operations after a repairing execu- tion. Test Instruments ?Dual trace o

20、scilloscope ?Digital Multimeter Accessories ?2 x 4Mbyte SIMM DRAM modules. ?1 Vocal Processor Kit. ?1 3.5 Formatted Diskette. ?Read/write JOMEGA ZIP SCSI device. ?RS232 loopback (terminal 1-2 and 3-5 shorted) ?2 jack-jack cables with a resistor divider inside plugs (10K/ 82ohm). Note: To check compl

21、etely the keyboard are necessaries all the optional accessories installed. Setup Install all the optional accessories: the Vocal processor kits, the 2 SIMM modules and insert the diskette into 3.5 disk drive. Set the jumpers on CPU board as follow: set J1 at position B, leave the jumper J2 on positi

22、on 8MB. Set the JP1 and JP2 jumpers on Supply or Mixer board at position A (Vocal Processor Installed). Connect the R and L outputs to the MIC/LINE inputs using the appropriate cable. Connect the external JOMEGA ZIP SCSI device to the SCSI socket. Plug the RS232 loopback into the socket. Checks and

23、Adjustments ? Aftertouch To adjust the keyboard aftertouch locate the VR1 trimmer on CPU board, connect the scope CH1 probe tip to its center terminal, probe clip connected at ground, adjust VR1 to obtain an excursion from 0 to 5V every time a note key is pressed with different pressure, or to obtai

24、n a better adjustment follow the instructions on ADJUSTMENT TABLE (page 6). ? MIDI, RS232 and RS422 mode Press MIDI, MASTER (F3), PC I/O (F3), set PC1 with DIAL and press ENTER, set LOCAL to OFF (F1), verify that the keyboard plays thru RS232 by unplugging and re-inserting the RS232 loopback into th

25、e socket. Press MIDI and F3 twice, rotate the DIAL to set ?MACINTOSH?, check the 1MHz clock appear on pin 1 of COMPUTER socket (use the second probe tip to do that). ? Panel Key and Led Press SYSTEM, OTHER (F4), INFO (F1) and F4 the display show a warning message: press ENTER and PANEL (F3) and then

26、 press all the panel buttons checking their operation on display, at the same time every led of pressed button must light up, except DISK led. ? Pitch Bend and Modulation Wheels Rotate the Modulation wheel verifying the excursion displayed, it ranges from 0 to 127. Rotate the Pitch Bender wheel veri

27、fying the excursion displayed, it ranges from 0 to 127 with 64 on center position, a slightly difference may be adjusted by VR11 on Controls panel board, a greater difference may be adjusted repositioning the knob or the potentiometer. Press ENTER and ESCAPE simultaneously to return to HARD- WARE te

28、st menu. ? Memories and Optional Accessories Press DEVICE (F1), the instrument self-test check subsequently the follow devices: SIMM modules (VDRAM), 8Mbyte sample dram (BDRAM), 3.5 disk drive (FD), SCSI interface (SCSI) and hard disk (HD) marking with ?pass? all devices checked success- fully, with

29、 ?np? all devices not present, with ?fault? all device defective. Theoretically all test must be passed, if you have a mistake on a device re-check its installation. Press ENTER if necessary. ? Inputs, Dsp and Vocal Processor Put MASTER - INPUT - LEVEL sliders to maximum position and rotate full clo

30、ckwise GAIN1 and GAIN2 potentiometer located on the rear side. Measure a sinusoidal signal at 4Vpp on OUT 1 and OUT 2 outputs sockets (the 1KHz tone gets out OUT R and L, re-input thru MIC 1 and 2 by the appropriate cable, pass thru DSPs and finally get out from OUT 1 and 2). Turn off the signal by

31、means SIGNAL (F4). ? Noise level Turn off the instrument, disconnect the signal cable, wait at least 30 seconds, turn on again the keyboard and check the noise level is acceptable (if not verify the insulation between electrical and chassis ground is at least 40Kohms). ? Data Hold Press SYSTEM, OTHE

32、R (F4), INFO (F1), F4 , ENTER and DHOLD (F2) and then wait until the display show PASS. Turn off the keyboard and then remove not included optional kits (the EQUINOX PRO version is equipped without Vocal Processor and SIMM Modules), restore the jumpers positions: J1 to A, JP1 & 2 to B. Turn on again

33、 the instrument and verify, repeating the test, that only BDRAM, SCSI and HD pass. ? Final Check Verify the keyboard correct operation playing something on it, and finally launch the Sounds sequence pressing PROGRAM, SHUFFLE (F4), MAKE (F1). When it is finished you have tested the keyboard. ? Reliab

34、ility Check Before reassembling the instrument and before deliver it to the user, it is a goal verify its reliability: To do that switch it off, or leaving it switched on but operating with greatest caution, carefully shake the boards and connec- tions inside it using an insulated tool (for example

35、the handle of the screwdriver) to find wrong contacts and so on. Turn on the instrument and verify that it operates correctly repeating the Final Check. Disconnect the instrument from the mains, reassemble it and shake it carefully without causing aesthetics damages, re- connect it to the mains, tur

36、n on and re-check its functionality, finally leave it switched on for a long time verifing its function- ality occasionnally. J J J J J 6 6 6 6 6 7 7 7 7 7 J J J J J GENERALMUSIC S.p.A. ItalySCHEMATIC DIAGRAMEQUINOX Power Supply, Midi & Controls and Phones Board Pcb Layout DRW: BOCCATO APP: PANNELLI

37、REV: 08-10-98 DISK: 65 PART: 1/1CKD: RICCOBELLI DWG: 315088/116 ALL RIGHTS ARE RESERVED, NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC. MIDI & CONTROLS I/O BOARD (PCB#315088) PHONES BOARD (PCB#315123) MIXER BOARD (PCB#315151/2) ANALOG I/O BOARD (PCB#315163) J J J J J 8

38、 8 8 8 8 9 9 9 9 9 J J J J J J J J J J 1010101010 A12 A8 A14 A10 D1 D2 D5 D0 D7 D6 D3 D4 A15 A13 A11 A9 POT1 POT1 +5V+5V+5V +5V +5V +5V +12V +5V -12V +5V -12V +5V +5V+5V +5V +5V +5V +5V +5V +5V +12V -12V TR2 BC550C D14 4148 D15 4148 D16 4148 D11 4148 D12 4148 R36100E R37100E R47100E C13100N R48100E

39、R910K R53560E C32100P R621K R401K R41100K R551K R511K R171K R201K R191K R231K R161K R221K C7100N C16100N C29100N C25100N R151K C23100N R39100K C10 100N C8100N R28100E C5100N C3100N C4100N C6100N C9100N R611K R6010K C17100N C18100N C28100N R431K C27100N C26100N R143K3 C30100N C1100N C3133P R451K C211

40、00N R38100K R571K R501K R1210K R311M R63100E 7 14 IC1 74HC125 R33100E R34100E R35100E TR3 BC 327 21 30 IC3 VALIS100740 R46100E R2910K R6510K R322K2 R252K2 R441K R49100E R52100E R103K3 R1110K R641K R133K3 R591K C19100N R661K C14100N R243K3 C24100N R42100E 1 23456789 AR1 10K X8 R54560E R5610K R8330E R

41、58560E R7330E C22100N 16 48 3914 IC3 VALIS100740 98 10 IC1-C 74HC125 4 15 13 12 11 7 85 2 6 1 16 19 18 17 A0 A1 LE MULTIPLEXER DEMULTIPLEXER A2 XC X1 X2 X3 X4 X5 X6 X7 X0 E1 E2 IC474HC4351 TR1 BC327 23 1 IC1-A 74HC125 56 4 IC1-B 74HC125 1211 13 IC1-D 74HC125 R181K R30100E D13 4148 C39 100N 1 5342 AR

42、3 10K X4 4 15 13 12 11 7 85 2 6 1 16 19 18 17 A0 A1 LE MULTIPLEXER DEMULTIPLEXER A2 XC X1 X2 X3 X4 X5 X6 X7 X0 E1 E2 IC274HC4351 1 2345 AR22K2 X4 XT1 20MHZ 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CN2 1 3 5 7 9 11 13 1516 14 12 10 8 6 4 2 CN6 1 2 3 4 5 6 7 8 9 10 11 12 CN5 C3810U C37100N C33 100N C341

43、0U C35100N C3610U R214K7 C15100N C2100N 910 20 IC4 74HC4351 910 20 IC2 74HC4351 22 23 24 25 26 27 28 29 1 2 3 4 5 6 7 8 9 10 11 12 13 15 17 18 20 19 38 37 36 35 34 33 32 31 40 41 42 43 44 45 46 47 49 50 51 52 53 54 55 56 64 63 62 61 60 59 58 57 P4,0/ADTRG/IRQ2 P4,1/IRQ1 P4,2/IRQ0 P4,3/RD P4,4/WR P4,

44、5/AS P4,6/CLK0 A0/P1,0 A1/P1,1 A2/P1,2 A3/P1,3 A4/P1,4 A5/P1,5 A6/P1,6 A7/P1,7 A8/P2,0 A9/P2,1 P5,0/TXD P4,7/WAIT P5,1/RXD P5,2/SCK A14/P2,6 A15/P2,7 FTOA/P6,1 FTIA/P6,2 TMRI0/FTIB/P6,3 TMO0/FTIC/P6,4 TMCI1/FTID/P6,5 TMO1/P6,7 TMCI0/FTCI/P6,0 A10/P2,2 A11/P2,3 A12/P2,4 A13/P2,5 MD1 MD0 EXTAL XTAL ST

45、BY NMI RES TMRI1/FTOB/P6,6 P7,0/AN0 P7,1/AN1 P7,2/AN2 P7,3/AN3 P7,4/AN4 P7,5/AN5 P7,6/AN6 P7,7/AN7 D1/P3,1 D2/P3,2 D3/P3,3 D4/P3,4 D5/P3,5 D6/P3,6 D7/P3,7 D0/P3,0 IC3VALIS100740 1 23456789 AC1 47P X8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DIR FQ CLK SD VEE VLCD HD_LED CN3 D9 4148 D10 414

46、8 C12100N C1110U PCB# 315113 FOOTSW2 VEE GET_TXD FQ A0 A1 A2 A3 RXD3 +5V NC FROM CONTROLS PANEL BOARD CN1 PEDAL V. MODULATION MULTIPLEXER KB PEDAL V. PEDAL3 BAUD RATE3 FOOTSW3 TO CONTROLS PANEL BOARD CN2 FROM CPU & S.G. BOARD CN2 CONTROLS PANELPITCH BEND TXD3 POT.9 POT8 POT7 POT6 POT5 POT4 POT3 M.VO

47、L. VOLUMES HD LED NEXT PEDAL2 FOOTSW2 PEDAL1 FOOTSW1 RSTV DIR POT1 PEAK-1 FOOTSW3 FOOTSW1 LGND +12V CONTROLS PANEL SUPPLY PEAK-2 LGND 761169 - CONTROLS INTERFACE BOARD GET_TXD VLCD FROM POWER AMP. & SUPPLY BOARD CN5 POT2 MODULATION PITCH_BENDER 100740 - PERIPHERIAL CPU DRW CKD APP. DWG# SCHEMATIC DI

48、AGRAM PCB# DSK# REV: PART:ALL RIGHTS ARE RESERVED, NO COPIES OR REPRODUCE THIS DOCUMENT WITHOUT WRITTEN CONSENT BY GENERALMUSIC. GENERALMUSIC S.p.A. ITALY CONTROL INTERFACE BOARD CONTROLS PANEL BOARD 1/165 315113, 315153550160 01-10-98 G.BOCCATO G.CONSORTE G.CONSORTE D1 D3 D2 D0 D5 D7 D6 D4 CN1 10 7

49、 9 8 6 5 4 3 2 1 NC D0 D0 D1 D1 D2 D2 D3 D3 D4 D4 D5 D5 D6 D6 D7 D7 A11A14 A15 A13 A12 A10 A14 A8 D0 D1 D1 D2 D3 D3 D4 D4 D5 D5 D6 D6 D7 D7 D0 D0 D1 D1 D2 D2 D3 D3 D4 D4 D5 D5 D6 D6 D7 D0 D0 D1 D1 D2 D2 D3 D3 D4 D4 D5 D5 D6 D6 D7 D7 A12 A10 A9 A8 A11 A9 A15 A13 D0 D2 D4 D6 D7 D5 D3 D1 +5V +5V+5V -12V +12V -12V +5V +12V +5V +5V +5V +5V +12V +5V +5V +5V +12V -12V +5V +5V +5V +5V +5V +5V +5V +5V +5V R28560EDL9 R6560E DL2 DL10 DL25 R101K R3 22K C22100NR121K 3 2 14 6 5 CK D RS Q Q D FF IC2-A74HC74 R8100K 11 12 1310 8 9 CK D RS Q Q D FF IC3-B74HC74 C26 100N