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1、JX-305Sep. 1998 1 TABLE OF CONTENTSPage Specifications.1 Panel layout.2 Panel Layout Patrs List.2 Exploded view.3 Parts list.4 Identifying the version number.6 Saving and loading user data.6 Factory preset.8 Upgrading the program memory software version.8 Test mode.9 Keyboard parts list.16 Keyboard
2、disassembly.16 Block diagram.18 Circuit board (MAIN).20 Circuit diagram (DIGITAL).21 Circuit diagram (SND_PWR).22 Circuit diagram (INTERFACE).23 Circuit board (PANEL A).24 Circuit diagram (PANEL A).25 Circuit board (PANEL B).26 Circuit diagram (PANEL B).27 SERVICE NOTES First Edition Issued by RJA C
3、opyright 1998 by ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. 17059943Printed in Japan AA00 (DP) 1 MODULATION BENDER JX-305:GROOVESYNTH G Keyboard 61 keys (with velocity and channel aftertouch)
4、 G Tone Generator Maximum Polyphony:64 voices Parts:24 parts (8 + RPS:16) Built-in Effects:Reverb, Delay, Multi-Effects (24 types) Patches:Preset:640 User:256 Card:512 Rhythm Set:Preset: 32 User: 20 Card: 20 G Sequencer Tracks:8 + Mute Ctrl Songs:50 Preset Patterns:274 RPS Patterns:494 User Patterns
5、:200 (Maximum) Card Patterns:200 (Maximum) Maximum Note Storage:approx. 75,000 notes (Internal) :approx. 220,000 notes (2M Card) :approx. 480,000 notes (4M Card) RPS Set:60 Pattern Set:30 Tempo:20.0 - 240.0 Resolution:96 ticks per quarter note Recording Method:Realtime, Step1, Step2 Quantize:Grid, S
6、huffle, Groove (71 types) G Connectors Output Jacks (L (MONO), R) Phones Jack MIDI Connectors (IN, OUT, THRU) Pedal Hold Jack Pedal Control Jack Pedal Switch Jack Memory Card Slot G Display LCD : 16 characters, 2 lines Beat LED SPECIFICATIONS G Power Supply AC Adaptor (DC 9V) G Current Draw 450 mA G
7、 Output Impedance 2.2 k G Dimensions 1,011 (W) x 289 (D) x 83 (H) mm 39-13/16 x 11-7 / 16 x 3-5 / 16 inches G Weight 6.9 kg / 15 lbs 4 oz (Excluding AC Adaptor) G Accessories Owners Manual Set (English)(PNo.71122389) Owners Manual Set (Japanese)(PNo.71011667) Card Protector(PNo.01346312) AC adaptor
8、ACI-100C(PNo.00905756) ACI-120C(PNo.00905767) ACI-230C(PNo.01018312) ACB-230(E)(PNo.01458278) ACB-240(A)(PNo.12449549) G Options Stereo Headphones:RH-20/80/120 Pedal Switch:DP-2/6, BOSS FS-5U Audio Connection Cable:PJ-1M :PCS-075W/150W/250W MIDI Cable:MSC15/25/50 SmartMedia:S2M-5/S4M-5 JX-305 GROOVE
9、SYNTH RadioFans.CN 收音机爱 好者资料库 JX-305Sep. 1998 2 PANEL LAYOUT FRONT VIEW REAR VIEW FRONT VIEW PARTS LIST No.Part NumberPart Name - B01452301J R-KNOB SF BLK/LCG 01453134ROTARY POT. EVJY15F01A54 A01453412ROTARY POT. EVUJFUFK1B14 B01565256ROTARY POT. EVUJFYFK1B14 with CENTER Click C, E - M01340290TACT S
10、W.EVQ11A D00899023LEDLNJ282RKRXE E, F , H, J, K , M00348490LEDSLR-325VCT31 (RED) G00560745LEDSLR-325MCT31 (GREEN) O15029342LEDGL3ED8 (2 COLORS) C00900189D S-KEYTOP SX1H BLK E00900145D S-KEYTOP SD1H BLK F00900156D S-KEYTOP SD2H BLK G22495277D S-KEYTOP MD1H BLK H01013023D S-KEYTOP SD1H DRD I00900190D
11、S-KEYTOP SX2H BLK J00900167D S-KEYTOP SD3H BLK K22495278D S-KEYTOP MD2H BLK L22495275D S-KEYTOP MX2H BLK M22495272D S-KEYTOP MD4H BLK N01129334LCDDM1628-0AUB P22485303D R-KNOB L BLK 248-303 01013223ENCODEREVQ VEM F01 24B PANEL LAYOUT PARTS LIST REAR VIEW PARTS LIST No.Part NumberPart Name 01343101D
12、C-ESCT BX1H BLK 01341178CARD CONNECTOR CN015S-3013-0 A13429274MIDI JACKYKF51-5041 B00569278JACKLGR4609-7000 C13449720DC INHEC2305-01-250 D22360712CORD HOOK236-712 E13149125EST206BPOWER SW wq yuy wew y r tr ttr wry i oy!0 !4!2t!6!5!7 u!1!0 !3!4!4 eqwr t y RadioFans.CN 收音机爱 好者资料库 JX-305Sep. 1998 3 A B
13、 C D E F G H I J K L M N O P Q R S T U V EXPLODED VIEW PARTS No.Part No.Part Name q01129334LCD DM16280AUB w01452201TOP PANEL e01452212BOTTOM COVER r01452223SIDE PANEL R t01452234SIDE PANEL L y01452245DISPLAY COVER u01452256DISPLAY HOLDER i01455990DUST COVER o12359139FOOT FF-018 BLK !013149125AC SW E
14、ST206B 5A/125V !122205900PANEL HOLDER !222360712CORD HOOK 236-712 !371017078BENDER PB-A0113 !471011689SK-861-K KEYBOARD ASSY !571011634MAIN PWB ASSY !671011723PANEL A ASSY !771017190PANEL B ASSY !801452301J R-KNOB SF BLK/LCG !922485303D R-KNOB L BLK 248-303 SCREW No.Part No.Part Name A40011045Bindin
15、g Taptight B 2 X 6 ZC B40011056Binding Taptight B 3 X 6 ZC C40011067Binding Taptight B 3 X 8 ZC D40011123Binding Taptight B 4 X 8 BZC E40011490Double Sems 3 X 6 BZC F40011512Double Sems 3 X 12 BZC G40011189Pan Taptight P 3 X 8 ZC H40011201Pan Taptight P 3 X 8 BZC I40239734Binding Taptight VWH 3 X 6
16、ZC RadioFans.CN 收音机爱 好者资料库 JX-305Sep. 1998 4 PARTS LIST NOTE : The parts marked # are new (initial parts). CASING 01343101D C-ESCT BX1H BLK #01452201TOP PANEL #01452212BOTTOM COVER #01452223SIDE PANEL R #01452234SIDE PANEL L #01452245DISPLAY COVER 12359139FOOT FF-018BLK 22360712CORD HOOK 236-712 CHA
17、SSIS #01343090LED SPACER #01452256DISPLAY HOLDER #01452323ENCODER HOLDER 01455901LED SPACER LH-36-9 #01455990POT DUST COVER 22205900PANEL HOLDER KNOB.BUTTON 00900145D S-KEYTOP SD1H BLK 00900156D S-KEYTOP SD2H BLK 00900167D S-KEYTOP SD3H BLK 00900189D S-KEYTOP SX1H BLK 00900190D S-KEYTOP SX2H BLK 010
18、13023D S-KEYTOP SD1H DRD #01452301J R-KNOB SF BLK/LCG 22485303D R-KNOB L BLK 248-303 22495272D S-KEYTOP MD4H BLK 22495275D S-KEYTOP MX2H BLK 22495277D S-KEYTOP MD1H BLK 22495278D S-KEYTOP MD2H BLK SWITCH 01340290EVQ11A H=5.0TACT SW 13149125EST206B 5A/125VPOWER SW JACK 00569278LGR4609-7000STEREOJK2-7
19、 on MB 13429274YKF51-5041MIDIJK1 on MB 13449720HEC2305-01-250DC INJK8 on MB DISPLAY UNIT 01129334DM1628-0AUBLCD SHARP BENDER UNIT 71017078PB-A0113 KEYBOARD #71011689SK-861-K KEYBOARD ASSY CONSIDERATIONS ON PARTS ORDERING When ordering any parts listed in the parts list, please specify the following
20、items in the order sheet. QTYPART NUMBERDESCRIPTIONMODEL NUMBER 1022575241Sharp keyC-20/50 152247017300Knob (orange)DAC-15D Failure to completely fill the above items with correct number and description will result in delayed or even undelivered replacement. Ex. SAFETY PRECAUTION: The parts marked h
21、ave safety- related characteristics. Use only listed parts for replacement. MB: PWB MAIN ASSY PA: PWB PANEL A ASSY PB: PWB PANEL B ASSY PCB ASSY # E 71011634PWB MAIN ASSY #71011723PWB PANEL A ASSY #71017190PWB PANEL B ASSY IC 00127490TC7W08FDUAL 2in ANDIC29 on MB 00129278SSC1080F0BKEYSCANIC4 on MB 0
22、0897078RA01-005 (TC170C200AF-005)CUSTOMIC6 on MB 00899812LH28F800SUT-70FLASH MEMORY BLANK IC1,7 on MB #01342390UPD23C16000WGY-834-MKH16M MASK ROMIC8 on MB 01342401LHMN0PNH64M MASK ROMIC3 on MB #01342978TC160G22AF-1253CUSTOMIC31 on MB 01344056SI-8501LREGULATOR +5VIC27 on MB 01347745TMS418169A-6016M D
23、RAMIC2 on MB 01347756LH62800K-502M DRAMIC33 on MB 01451578AK4324-VF-E2DACIC24 on MB #01455878TC74AC574POCT. D-F/F DIPIC4 on PA,IC1 on PB #01456856BA10358FDUAL OPAMP SOPIC37 on MB #01564078HD6437042AE32FCPU MASKIC5 on MB #01565201LHMN5KWBWAVE MASK ROMIC9 on MB 15169605TC74HC4052APDUAL 4:1 ANALOG-MPX
24、DIPIC2 on PA 15189186UPC4570CDUAL OPAMP DIPIC3 on PA 15189249BA10324AQUAD OPAMP DIPIC1 on PA 15199937M51953BFP-600CRESET ICIC26 on MB 15249104TC7S04FINVIC34 on MB 15249111TC7WU04FTRI. INVIC16 on MB 15249125T0TC74HC32AFQUAD 2in ORIC30 on MB 15259758T0TC74HC175AFQUAD D-F/FIC32 on MB 15259769T0TC74HC23
25、8AF3 to 8 DECODERIC35,36 on MB 15259778T0TC74HC245AFOCT. BUS BUFFERIC20 on MB 15259885TC7S32F2in ORIC11 on MB 15269219H0HD74LS05FPELTTL HEX INV(OPEN DRAIN)IC19 on MB 15289105UPC4570G2DUAL OPAMP SOPIC25 on MB 15289109M5216FP-600DDUAL OPAMP SOPIC23 on MB 15289125PC-410TPHOTO ISOLATORIC18 on MB 1528940
26、2TA78L05FREGULATOR +5VIC28 on MB TRANSISTOR 00239801DTA114EUDIGITALQ3,10,14,15 on MB 00239812DTC114EUDIGITALQ5 on MB 005620122SC3265-YQ13 on MB 011212782SA1576AQ1,2,11 on MB 011212892SC4081Q4,6,7,12,30 on MB #01455934RN1421DIGITALQ23-29 on MB #01567867DTA144WUADIGITALQ10 on MB 15329505DTC314TKDIGITA
27、LQ8,9,21,22 on MB DIODE 01016101RD4.7SZENERD2,3 on MB 150191261SS133SWITCING 15339120T01SS302ARRAYDA1-8 on MB 15339203SFPB54SCHOTKEYD4 on MB LED 00348490SLR-325VCT31RED 00560745SLR-325MCT31GREEND28 on PA 00899023LNJ282RKRXERED LONG LEADD8,12,15,23,27,29,38,42,43 on PA,D32-34 on PB 15029342GL3ED82COL
28、ERSD24 on PB RESISTOR #01011856RPC05T 0R0 J0OHML3-8, R4,5,7,236,300,310,C7,36,80,87,90 on MB 01013923EXBV8V100JVARRAYRA67,9-11,13,25-29 on MB #01457145EXBE10C103JARRAYRA1-5,8,12,14-16 on MB #01457156EXBE10C332JARRAYRA23 on MB 15399365RPC10T 470 J1/10W CHIPR58,79,203,204 on MB 15409113EXBV8V103JVARRA
29、YRA17-19,22 on MB 00126112EXBV8V101JVARRAYRA20,21,24 on MB JX-305Sep. 1998 5 POTENTIONMETER #01453134EVJY15F01A54 L=12.5STEREO VRVR10 on PA #01453412EVUJFUFK1B14 L=12.5VR1-5,7-9 on PA #01565256EVUJFYFK1B14 L=12.5CENTER CLICKVR6 on PA CRYSTAL 00901912MA-406 24.576MHZX2 on MB 01126267MA-406 7.056MHZX1
30、 on MB ENCODER 01013223EVQ VEM F01 24BEN1 on PB CAPACITOR #01015845ECHU1H181JB5FILM CHIPC127,132 on MB 01015856ECHU1H221JB5FILM CHIPC144,168 on MB #01015890ECHU1H122JB5FILM CHIPC150,171 on MB #01349312GRM39F105Z10PTCERAMIC CHIPC166,184,263,266 on MB #01349378TCFGA0J475M8RTANTALUM CHIPC79,157,163 on
31、MB #01565567ECHU1C473JB5FILM CHIPC254,255 on MB 13639546M0ECEA1CKA100BCHEMICAL(LOW)C23,110 on MB 13639550M0ECEA1CKA101BCHEMICAL(LOW)C1 on PA,C2 on PB 13649210M0CAPACITOR ECEA1CKN100BCHEMICAL BIPORLERC63 on MB FILTER.BEADS #01565578N1608Z601BEAD CHIPL1,2,9-11,13,14-21-26,31 on MB #01565589N1608ZA601B
32、EAD CHIPL29,30 on MB #01565590N1608ZA331BEAD CHIPL19 on MB #01565601N1608ZA121BEAD CHIPL27 on MB #01565612DSS310-93D223S50FILTERFL1 on MB #01567501EXC3BB102BEAD CHIPL12 on MB 12449355FBR07HA850TB00FERRITE BEADL1,2 on PA,L1,2 on PB CONNECTOR 0090461252806-1410FPCCN4 on MB 01120578IL-FPC-26SL-NFPCCN5,
33、6 on MB,CN1 on PA,CN1 on PB 01341178CN015S-3013-0CARDCN11 on MB 1336960552147-1010WIRE TRAPCN8 on MB 13379157IL-FPC-16SL-NFPCCN2 on MB 13379158IL-FPC-18SL-NFPCCN1 on MB 1342929951048-1000CABLE HOLDERCN2 on PA 13439351IL-S-6P-S2L2-EFCN7 on MB WIRING.CABLE 0089040110X150-P2.0RIBBON CABLEPA-MB #0145337
34、826X550-A6.0BB-P1.25H10FUJI CARDPB-MB #01454123WIRING W-1MB-PWSW #01454134WIRING W-2MB-PWSW #0145691226X250-A6.0BBR-P1.25H10FUJI CARDPA-MB #0145451216X200-A6.0BBR-P1.25H10FUJI CARDKBD-MB #0156738918X250-A6.0BBR-P1.25-HBL10FUJI CARDKBD-MB SCREW 400110563x6mm BINDING B-TIGHT ZC 400110673x8mm BINDING B
35、-TIGHT ZC 400110452x6mm BINDING B-TIGHT ZC 400111234x8mm BINDING B-TIGHT BZC 400111893x8mm PAN P-TIGHT ZC 400112013x8mm PAN P-TIGHT BZC 400114903x6mm SEMS BZC 400115123x12mm SEMS BZC #402397343x6mm VWH B-TIGHT ZC PACKING CASE #01564678PAD L #01564689PAD R #01564690ADAPTOR PAD #01564701CENTER PAD #01
36、564667PACKING CASE #40340023PE FORM BAG 0.5*1160*450 MISCELLANEOUS 01450745QFP HEATSINK 12199584M1698GROUNDING TERMINAL ACCESSORIES(Standard) 71011667OWNERS MANUAL SET(JAPANESE) 71122389OWNERS MANUAL SET(ENGLISH) 01346312CARD PROTECTOR 00905756ACI-100CAC ADAPTOR 100V(DC9V.1000mA) 00905767ACI-120CAC
37、ADAPTOR 120V(DC9V.1000mA) 01018312ACI-230CAC ADAPTOR 230V(DC9V.1000mA) #01458278ACB-230EAC ADAPTOR 230VE(DC9V.1200mA) 12449549ACB-240(A)AC ADAPTOR 240VA(DC9V.1200mA) JX-305Sep. 1998 6 IDENTIFYING THE VERSION NUMBER 1. Turn the power on. 2. While holding PATCH, PTN/SONG and TEMPO IC24) Check IC3 on P
38、B, IC23, 25 on MB Check around filter circuitry distorted Result of Test x displayed Check Check IC33 Bleak or etc Check IC6 Pin 119-143 Result of Test One of the dot is not lit Contrast of the LCD is not changed Contrast of the LCD is pale, even if adjust its contrast maximum level. Contrast of the
39、 LCD is dark, even if adjust its contrast minimum level. LED dose not change Check Replace the LCD unit. Check R249 Is PWM waveform input to the QFP side of the R262? Check DA7 Is there short in the circuit ? If the above check points are normal, replace the LCD unit. Check MAIN BOARD IC31 Pin 91, 9
40、2 Is pulse generated ?Check the condition of connection of R29, 30, C96, 97 on the MAIN BOARD JX-305Sep. 1998 15 11-5.Are the following values obtained when the bender lever is moved all the way to the left and right ? levelleftcenterright value-2560256 NOTE: If you move After Touch , Modulation, Ct
41、rl Pedal, knobs simultaneously, the LCD display error. To abort a command, press BWD button. When MIN and MAX displayed, The following display will appear. 11-6.Set the bender lever to MOD position and then return it to the original position. Does the MOD value increase from 0 to 127 ? 11-7.Test end
42、s normally, the following display will appear. Press ENTER button, Factory Data will be loaded. Troubleshooting for the AD Test Result of Test No response Value does not reach the 0 or 127 , -256 or +256 Check Check Q6, 7Check the condition of connection Check the power supply of Q6, 7 If the above
43、check points are normal, replace the Bender unit. JX-305Sep. 1998 16 KEYBOARD PARTS LISTKEYBOARD DISASSEMBLY 1. ATTACHING THE PCBs 1) First, turn the chassis over on the other side, being careful not to reverse the right and left ends. Next, as shown in fig. 1, place SPACER 12P (4 pieces) on the chassis from the left end (the bass side of keyboard), aligning them with the posisioning holes provided on the chassi
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