Roland VG-8EX V-Guitar System Service Manual 电路图.pdf

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1、Jul, 1998VG-8EX TABLE OF CONTENTSPage SPECIFICATIONS1 LOCATION OF CONTROLS 2 EXPLODED VIEW3 BLOCK DIAGRAM 4 CIRCUIT DESCRIPTION 4 PARTS LIST 5 TEST MODE611 TROUBLESHOOTING 11, 12 DATA SAVE AND LOAD12 LOADING THE FACTORY PRESET DATA 12, 13 SYSTEM VERSION UP 13 IDENTIFYING SYSTEM VERSION NUMBER 13 MAI

2、N BOARD ASSY1420 PANEL BOARD ASSY21, 22 LED BOARD ASSY 21, 22 R. ENCODER BOARD ASSY21, 22 VOLUME BOARD ASSY21, 22 FOOT SW BOARD ASSY21, 22 POWER BOARD ASSY 21, 22 Printed in Japan (ACE0) (CR) 1 17059926 Issued by RJA Copyright c 1998 by ROLAND CORPORATION All rights reserved. No part of this publica

3、tion may be reproduced in any form without the written permission of ROLAND CORPORATION. SPECIFICATIONS Internal Memory : System Setup: 1 : Patches: 160 Preset Patches, 64 User Patches Memory Card(M-512E) : System Setup: 1 : Patches: 64 Patches Effects : Moduration, Delay, Reverb, Equalizer Output M

4、IX OUT : Normal Output Level: -10dBm(at Balanced use), -16dBm(at Unbalanced use) : Output Impedance: 600 Ohm(at Balanced use), 300 Ohm(at Unbalanced use) : Output Noise Level: Less than -84dBm (0dBm=0.775Vrms) GUITAR OUT : Normal Output Level: -20dBm : Output Impedance: 2k Ohm Display : LED: 7segmen

5、ts, 3lines(LED) : LCD: 160 x 64 Dots(backlight) Power Supply : AC100V, 117V, 230V, 240V Current Draw : 230mA Demensions : 19-7/8(W) x 11-5/8(D) x 3(H)inches : 504(W) x 293(D) x 76(H)mm Weight : 101lbs6oz / 4.7kg Accessories : Owners Manual Set(Japanese): PNo.71128356 : Owners Manual Set(English): PN

6、o.71129578 AC Cord100V: PNo.23495112 AC Cord117V: PNo.13499109 AC Cord230V: PNo.13499221 AC Cord230V E: PNo.13499221 AC Cord240V A: PNo.13499222 EURO Converter PLUG ECP01-5A(230VE ONLY): PNo.00905234 GK Connecting Cable (C-13A :5m): PNo.00349067 Options: Synthsizer DriverGK-2A GK Connecting Cable (C

7、-13B :10m) RadioFans.CN 收音机爱 好者资料库 2 LED SEL5221S TH8F (00569289) 7 SEG. LED LB-603VP (15029567) DISPLAY COVER (00568889) LED SLR-342VR3F (00785856) KEYTOP 6AAPA0187A (00568867) SWITCH PEDAL (22180605) ESCUTCHEON 222-321 (22220321) TOP PANEL (01568612) BOTTOM CHASSIS (01673445) JACK NUT 2 (22150756)

8、 JACK HLJ7101-01-3010 (13449283) GK SOCET TCS5093-10-4152 (00564556) JACK HLJ4336-01-3080 (13449287) MIDI JACK YKF51-5048 (13429676) YKB21-5227 (00120434) JACK HLJ7001-01-3010 (13449284) CARD HOLDER F C-ESCT MX1H BLK (22225374) POWER SWITCH EST206B 5A125V (13149125) FOOT BASE 235-312 (22350312) AC I

9、NLET 100V, 117V CM-11 18A/250V/3P (13429718) 230V, 240V CCT 2102-0201 2.5A/250V/2P (00128789) DISPLAY UNIT DMF-50374NYU-LY (00568989) KNOB D R-KNOB L BLK 248-303 (22485303) PEDAL LABEL PANEL 1 (00568901) PEDAL LABEL PANEL 2 (00568912) PEDAL LABEL PANEL 3 (00568923) PEDAL LABEL PANEL 4 (00568934) PED

10、AL LABEL PANEL BANK DOUN (00568945) PEDAL LABEL PANEL BANK UP (00568956) KNOB M R-KNOB LF BLK/LCG (01348023) LOCATION OF CONTROLS VG-8EX Jul, 1998 RadioFans.CN 收音机爱 好者资料库 3 1 d f 2 4 5 3 e 6 7 8 9 11 12 10 13 14 16 17 19 20 18 21 22 23 24 26 27 25 28 29 15 30 c d a e b h i f j c 31 h c e 26 e h h g

11、EXPLODED VIEW PARTS No.PART No.PART NAME q01673445Bottom Chassis w01568612Top Panel e70450045Main Board Assy(PCB 00568278) r70451690Power Board Assy(PCB 00568289) t70450023Panel Board Assy(PCB 00567712) y71128389R.Encoder Board Assy(PCB 00568201) u70451678Volume Board Assy(PCB 00568234) i70451656LED

12、 Board Assy(PCB 00568189) o70451689Foot SW Board Assy(PCB 00568256) !000568989DMF-50374NYU-LY !122225374F C-ESCT MX1H BLK(Card Holder) !200568889Display Cover !301348023M R-KNOB LF BLK/LCG(Volume Knob) !422485303D R-KNOB L BLK 248-303(Rotaly Encoder Knob) ! 5 00784534Pot Dust Cover !600677412SW Cove

13、r !700677401Insulating Sheet !822220321Escutcheon 222-321 !922180605Switch Pedal 022170103Support Spring(for Switch Pedal) 100568867Key Top 6AAPA0187A 200784523VR Holder 300671445Clip Clamp(Wiring Holder) 413149125Power Switch EST206B 5A/125V 522453551N0TRANSFORMER 100V 22453552C0TRANSFORMER 120V 22

14、453553D0TRANSFORMER 230V/240V 613429718CM-11 18A/250V/3P AC Inlet(100V,117V) 00128789CCT 2102-0201 2.5A/250V/2P AC Inlet(230V,240VE,240VA) 700231434Inlet Holder 800673934WIRING 11(AC Inlet Chassis) 922150756Jack Nut 2 #022350312Base 235-312 #140129301Rubber Foot #35(for Switch Pedal) SCREW A17048154

15、M9 Washer ZC B17048153M9 Nut Thin Type ZC C400125123x6mm Binding Head S-tite ZC D40011745M4 Spring Nut ZC E400111013x8mm Binding Head B-tite BZC F400113123x8mm Binding Head P-tite BZC G400113023x8mm Single SEMS BZC H400110903x6mm Binding Head B-tite BZC I400112783x8mm Binding Head P-tite ZC J1704815

16、52x4mm Binding Head B-tite ZC ! ! ! VG-8EX Jul, 1998 RadioFans.CN 收音机爱 好者资料库 12345678910111213141516171819202122232425262728 A B C D E F G H I J K L M N O P Q R S T U 4 BLOCK DIAGRAM CIRCUIT DESCRIPTION String vibrations induced to GK-2A pickup are level adjusted at the input analog circuit and fed

17、to the A/D converter (ICs 50-52) which outputs the digital equivalents to the gate array IC22. From IC22, waveform data is sent to CSP1 IC24 and CSP2 IC25 where waveform data is modified as desired. From IC22, pitch and envelope data are sent to DSP IC23. ICs 23, 24 and 25 return the processed data

18、back to gate array IC22 from which data are sent to DAC IC54 and then routed to analog singal output circuiuts. The CPU IC1 directs CSP1 and CSP2 and performs other controls on LCD, LED, switches, memory card, VALUE dial, expression pedal, and the like. System/patch parameters are stored in the batt

19、ery backed up SRAM IC63. Flush memory IC62 stores main program and preset patches. These data are updated upon performing MIDI revision procedure. VG-8EX Jul, 1998 NOTE:The parts marked # are new (initial parts) CASING #01568612Top Panel 00568889Display Cover 22350312Foot Base 235-312 22225374F C-ES

20、CT MX1H BLK (Card Holder) 22220321Escutcheon 222-321 22180605Switch Pedal 22170103Support Spring (for Switch Pedal) 40129301Rubber Foot #35 (for Switch Pedal) CHASSIS #01673445Bottom Chassis 00784523VR Holder KNOB, BUTTON 00568867Key Top 6AAPA0187A (Power Switch) 22485303D R-KNOB L BLK 248-303 (Rota

21、ly Encoder) 01348023M R-KNOB LF BLK/LCG (Volume) SWITCH 13149125EST206B 5A/125VPower Switch 13129772SKQEAA JACK, SOCKET 00564556TCS5093-10-4152GK INJK4 13429676YKF51-5048MIDI IN/OUTJK1 13449287HLJ4336-01-3080Dual Stereo JackJK9 13449283HLJ7101-01-3010Monaural JackJK5.JK6.JK7 13449284HLJ7001-01-3010S

22、tereo JackJK2.JK8 00120434YKB21-5227Stereo JackJK4 13429718CM-11 18A/250V/3PAC Inlet(100V/117V) 00128789CCT 2102-0201 2.5A/250V/2PAC Inlet(230V/240V) DISPLAY UNIT 00568989DMF-50374NYU-LYLCD UNIT PCB ASSY 70450045Main Board Assy(PCB 00568278) Note: Only Main Board VG-8 Ver.1.* will be supllied from s

23、ervice center. Be sure to execute the SYSTEM VERSION UP when you use for VG-8EX 70450023Panel Board Assy(PCB 00567712) 70451656LED Board Assy(PCB 00568189) #71128389R.Encoder Board Assy(PCB 00568201) 70451678Volume Board Assy(PCB 00568234) 70451689Foot SW Board Assy(PCB 00568256) 70451690Power Board

24、 Assy(PCB 00568289) Note: Replacement Main Board Assy does not include the Lithium Battery. Because lithium battery does not use for the back-up of factory presets. Order proper the lithium battery separately if necessary. 00238990CR2032Lithium Battery 00238990CR2032Lithium Battery IC #01122512uPD70

25、433GD-12-5BBCPU 15239222TC140G12AF-0061Gate Array 00900812RA03-002(TC170C110AF-002)Custom DSP 00564523TMP320P16PGLCustom DSP 15229848uPD65005GF-062-3B8Card Gate Array 15199944SED1335F0BLCD Controller #0167020128F400B5-B604M Flash Memory (Programed,only for VG-8EX) 01123289SRM2B256SLMX55256K SRAM 001

26、28890HY6264ALJ-7064K SRAM #01342990LH64256CK-501M DRAM 00343556LC7886MN-TRMA/D Convertor 00232567PCM69AU-1D/A Convertor 15289105uPC4570G2Dual Operational Amplifier 15189261M5218AFP-600EDual Operational Amplifier 00349023NJM062MDual Operational Amplifier 15289123M51953AFP-600CReset Controller 0067381

27、2ICL7660SCBADC-DC Convertor 15259109TC4053BFTriple 2ch Multiplexer 15259110TC4066BFQuad Analog Switch 00564545TC74VHC04FHex Inverter 00567534TC74VHC138FDecoder 00236845TC74VHC245FOctal Bus Transceiver 00564534TC74VHC574FOctal D-Type Flip-Flop 15259708T0TC74HC08AFQuad 2-Input AND Gate 15259720T0TC74H

28、C74AFDual D-Type Flip-Flop 15259823T0TC74HC574AFOctal D-Type Flip-Flop 15259869T0TC74HC4075AFTriple 3-Input OR Gate 15249116T0TC7W00F-TE12LDual 2-Input NAND Gate 00232645TC7W14F-TE12LTriple Schmitt Inverter 00671878TC7SH86F-TE85LSingle EX-OR Gate 15289125PC410Photo Coupler 15199173M5291PSwitching Re

29、gulator IC 15199294AN7705F+5V Voltage Regulator 00569023AN7807F+7V Voltage Regulator 00569034AN7907F-7V Voltage Regulator TRANSISTOR #015688902SA1931 153091012SA1037KR-T146 153191012SC2412KR-T146 15329507DTA114EK-T146 15329503DTA124EK-T146 15329510D0DTC144EK-T146 15329536RN1442-TE85L 15149134TD62785

30、PTransistor Array 00019112TD62381PTransistor Array DIODE 15339126RB471E-T149Shottky Diode 15039178RK-33Shottky Diode 15339105DAN202K-T146Diode Array 15339108DA204K-T146Diode Array #01568901GBPC102Bridge Diode 15039172S4VB20-4001L15 3.9A/200VBridge Diode 00569289SEL5221S TH8FLED(RED)D21.D22.D23 on PN

31、B 00785856SLR342VR3FLED(RED)D24.D25 on PNB 15029567LB603VP7-Segments LED(RED) RESISTOR #01120267RSSX 1/2 0.22 OHMJ0.22ohm 1/2W CAPACITOR 00568301SRG25VB22002200F/25V 00568312SRG16VB22002200F/16V 0056832310SA100M100F/10V OS-CON 00127301LLA50VB11F/50V Low Leakage ROTARY ENCODER 01124478EC16B24104 L=15

32、Rotary Encoder POTENTIOMETER 13289202RK14K12D 10KBVolume INDUCTOR 12449268BL02RN2-R62T2-FEMI Filter 13529105M1DSS310-55D223SEMI FilterL206 on PWB 12449427HP-011ZChoke CoilL207 on PWB CRYSTAL #01568889MA-406 8MHz TE24X2 on MB 00901912MA-406 24.576MHz TE24X1 on MB 01342145MA-406 25MHz TE24X3 on MB 005

33、64590SG-531PH 35MHzOscillatorX4 on MB 15299218SG-531YH 65.152MHzOscillatorX5 on MB CONNECTOR 13369663S3B-PH-K-SCN3 on REB 13369504B8B-PH-K-SCN6 on MB 13369564B12B-PH-K-SCN4 on MB 13369563B14B-PH-K-SCN3 on MB 13369562B15B-PH-K-SCN5 on MB 13369667S7B-PH-K-SCN4 on PNB 13369668S8B-PH-K-SCN8 on VRB 13369

34、675S15B-PH-K-SCN5 on LDB 13369593B5B-XH-ACN2 on MB 13369556B8B-XH-ACN7 on MB 134292337508095ACard ConnectorCN1 on MB 134394395569-06A1CN201 on PWB WIRING 00568167WIRING 1CN1 on PNB 00568178WIRING 2CN2 on PNB 00568190WIRING 3CN6 on PNB 00568267WIRING 4CN101 on FSB 00568223WIRING 5CN7 on PNB 00568334W

35、IRING 6CN202 on PWB 00568345WIRING 7CN203 on PWB 00568990WIRING 8LCD MB 00569012WIRING 9VRB MB 00673912WIRING 10AC Inlet AC Switch 00673934WIRING 11AC Inlet Chassis TRANSFORMER 22453551N0TRANSFORMER 100V 22453552C0TRANSFORMER 120V 22453553D0TRANSFORMER 230V/240V BATTERY 00238990CR2032Lithium Battery

36、 SCREW 400110903x6mm Binding Head B-tite BZC 400111013x8mm Binding Head B-tite BZC 400113123x8mm Binding Head P-tite BZC 400112783x8mm Binding Head P-tite ZC 400125123x6mm Binding Head S-tite ZC 170481552x4mm Binding Head B-tite ZC(for LCD unit) 400113023x8mm Single SEMS BZC 17048153M9 Nut Thin Type

37、 ZC 17048154M9 Washer ZC 40011745M4 Spring Nut ZC MISCELLANEOUS 00568901Pedal Label(1) 00568912Pedal Label(2) 00568923Pedal Label(3) 00568934Pedal Label(4) 00568945Pedal Label(BANK DOWN) 00568956Pedal Label(BANK UP) 22150756Jack Nut 2 12569420CR2032 Battery Holder 00677412SW Cover 00784534Pot Dust C

38、over 00891423LED Spacer 00677401Insulating Sheet 00231434Inlet Holder 00671445Clip Clamp (Wiring Holder) 00568356Heat Sink PR1616-25-PB 17048151Radiation Sheet 2067A-5051 40016378Rag Terminal TER61-0171 00673478Packing Case 00673467Pad (1set = L,R 2pieces) 00789389Pad C (top pad) ACCESSORIES #711283

39、56Owners Manual Set Japanese #71129578Owners Manual Set English 23495112DC-015-J01100V 13499109UC-909-J06117V 13499221EC-511-E07230V/230VE 13499222SC-078-J02240V A 00905234EURO COVERTER PLUG ECP01-5A (230VE ONLY) 00349067C-13A(SMK)GR Cable 5m(13P) OPTIONS * C-13BGR Cable 10m(13P) * GK-2AGUITAR PICKU

40、P PARTS LIST 5 VG-8EX Jul, 1998 SAFETY PRECAUTIONS: The parts marked have safety-related characteristics. Use only listed parts for replacement. ! CONSIDERATIONS ON PARTS ORDERING When ordering any parts listed in the parts list, please specify the following items in the order sheet. QTY PART NUMBER

41、 DESCRIPTION MODEL NUMBER Ex. 10 22575241 Sharp Key C-20/50 15 2247017300 Knob (orange) DAC-15D Failure to completely fill the above items with correct number and description will result in delayed or even undelivered replacement. MB -Main Board Assy.REB -Rotary Encoder Board Assy.PWB -Power Board A

42、ssy. PNB-Panel Board Assy.VRB -Volume Board Assy. LDB-LED Board Assy.FSB -Foot Switch Board Assy. ! ! ! ! ! ! ! ! ! ! ! Note: Consider about the natural environment carefully before through the old lithium battery away when you exchange to the new one. 6 TEST MODE CAUTION Before entering the test mo

43、de, be sure to save the user data referring to section, “Data save and load”. Tools required MIDI cable (for MIDI test) EV-5 or FV-300L (for EXP pedal test) FS-5U (2 units) (for EXT switch test) PCS-31 (branching cable for FS-5U)(for EXT switch test) Guitar with GK-2A (or GK-2 or GC-10)(for GK test)

44、 C-13A (GR cable)(for GK test) M-512E (RAM card)(for RAM test) Headphones (or monitor speaker)(for GK test) Oscilloscope(for LINE test) Test Items 1. LED test 2. Switch test 3. Dial test 4. EXP pedal test 5. LCD test 6. EXT switch test 7. Battery test 8. MIDI test 9. RAM test 10. GK test 11. CSP tes

45、t 12. LINE test Entering/exiting test mode Entering the test mode While simultaneously pressing PLAY, PAGE and SYSTEM buttons, turn power on. LCD will show “JIG MODE” screen on which the system revision number is displayed. If necessary, adjust LCD contrast by using VALUE dial (contrast setting can

46、be made only while in “JIG MODE” screen). Press F1 and the LCD changes screen to “JIG MENU 1”. The JIG MENU screen has three pages: “JIG MENU 1”, “JIG MENU 2” and “JIG MENU 3”. Pages can be switched by pressing PAGE button. CAUTION This test mode uses “JIG MENU 1” and “JIG MENU 2” only. Do not use “

47、JIG MENU 3” which is invalid while in the test mode. Exiting test mode Simply turn off power. Starting/ending a test, general Starting a test In a “JIG MENU” screen, press function key ( F1 - F6) to select the specified test. Ending the test Press SYSTEM button and the LCD returns back to “JIG MENU”

48、 screen. After entring the test mode 1 LED test G Purpose: Test all LEDs by turning them on and off. G Test steps: 1. Press PAGE button. “JIG MENU 1” screen will appear. 2. Press F1 “LED” and the screen changes to “LED Check”. The screen looks like Fig. 1. 3. Press F1 “ALL”. Verify that all panel LE

49、Ds are lighting. 4. Press F3 “SEQ”. All LEDs are turned on and off, but only one at a time.F5 button adjusts the on period of each LED. Simultaneously lighting 2 or more LEDs show error condition. If error: Check IC1, IC2 and CN1 of panel board; and LED board. G To end the test: Press SYSTEM and the LCD returns to “JIG MENU 1” screen. 2 Switch test G Purpose: Test panel switches and foot switch