Roland EM-50 Service Notes
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Roland EM-50 Service Notes

Roland EM-50 Service Notes

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J2289130
SCREW 2.9X13 TC TC PR TROP

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  • Page 1 J2289130 SCREW 2.9X13 TC TC PR TROP...

  • Page 2: Creative Keyboard

    L / MONO DC IN 12V 2A STEREO USE ROLAND ACJ "CET APPAREIL NUMERIQUE DE LA CLASSE (B) RESPECTE LE THIS DEVICE COMPLIES WITH PART 15 OF FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2)THIS DEVICE MUST ACCEPT...
  • Page 3 THIS DEVICE COMPLIES WITH PART 15 OF FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO STEREO USE ROLAND ACJ "CET APPAREIL NUMERIQUE DE LA CLASSE (B) RESPECTE LE CONDITIONS:(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2)THIS DEVICE MUST ACCEPT...

  • Page 4: Control Pcb Assy

    MAIN BOARD PCB ASSY J2289193 SELF LOCK SCREW M3x6 TCTC H.6 7700609000 CONTROL PCB ASSY F/ D-BEAM J2409101 FLOPPY D. DRIVER JU-257 A166P olnly for EM-50 J2289130 SCREW 2,9x13 TCTCPR TROP 7700605000 LCD + CONNECTIONS ASSY 22265242 RUBBER GUIDE BUSHING...
  • Page 5 (Only for EM-50)

  • Page 7: Parts Name

    61-KEY KEYBOARD TP/7BA 2° code 7626921001 PARTS NAME CODE RJA Num. DOUBLE HEADED SPRING 22178226 NATURAL KEY C5 J2579123 NATURAL KEY D6 J2579124 NATURAL KEY E7 J2579125 NATURAL KEY F1 J2579126 NATURAL KEY G2 J2579127 NATURAL KEY A3 J2579128 NATURAL KEY B4 J2579129 NATURAL KEY C8 DO ( F )

  • Page 10: Control Board

    DBEAM CONTRAST SENSOR SWITCH MATRIX BENDER VOLUME CONTROL & CONTROL BOARD MODUL. MIDI CD INPUT OUTPUT SUSTAIN LEVEL IC11 DBEAM BUFFER SSC0-2 PHOTO CONTROL TXD1 RXD1 IC12 EFF. SSD0-7 DT[0-7] MUTE WROM P8-3 EA[0-14] WA[0-22] AN0-3 SQLC SQLC ED[0-7] IC18B DMACFG WD[0-7] XRES...
  • Page 11 TO POWER SWITCH 5045-04A 5045-04A DGND DGND 2.2 3W DCIN To FDD 2.2 3W 5045-09A L4940V5 10uF16 HEC2305-01-230 +12V 100nF 100nF BY251 47nF 47nF EMI FILTER 4700uF25 100uF25 DGND 1N4002 PLT1-R53C DGND 12V/2A AGND To MAIN B. 3300uF25 10I 0.6W 1N4148 BC560B BC549B...

  • Page 13: Master Volume

    DATA SSC7 TRANSPOSE D_BEAM _ON GROUP_A/B STYLE_SONG SSC6 AMPC1.2720P 5VREF SW10 SW11 SW12 SW13 SW14 SW15 SW16 SSD0 SSD1 BEND SSD2 KBD_VEL ONE_TOUCH_ARR ONE_TOUCH_ORG ONE_TOUCH_DRM INTEL/LAYER UPPER 1/2 TEMPO+ TEMPO- SSD3 SSC5 SSD4 VLCD 10uF16 SSD5 SSD6 SSD7 SW17 SW18 SW19 SW20 SW21...
  • Page 15 BEAM CONTR. ELKS471FA 12VA 0.1s 10uF16 BCLK BCLK 0.1s XRES XRES 220Ks 22Ks R110 47Ks 0s NIU R102 LRCK L.OUT 6K8s R111 C112 100uF16 R.OUT 2SA1037KR BZX79C5V1 22Ks SI/LSI 2SC2412 MUTE R112 2SC2412 220s R.REF 22Ks 10Ks 16/18 100Ks 4/8FS LR/RSI L.REF DAMP...
  • Page 16 TP10 TESTPIN 68KS TP11 TESTPIN 18KS 12KS 820KS 0.1s IC12A 2K2S UPC4570G 100S 10KS 10pFS 100S 15KS 33KS DAP202K IC12B BZX79C5V1 UPC4570G 0.1s 10nFS 10KS -VCC 15KS DA204K 47KS 68KS -VCC DAP202K EVND8AA03B24 10uF25 10uF25 -VCC 0.1s 0.1s 120KS IC11A 53014-0710 UPC4570G 8.2nF...
  • Page 17 0.1C 1uF25 1000uF16 D216 D215 2SC1815GR TLN201 TPS708 PULSE IC10A 150pF UPC4570HA 2SC2235Y IC10B 10nF 100K UPC4570HA -12V CN15 -12V 10uF16 53014-0710 10uF16 0.1C 0.1C BEAM BEAM From MAIN BOARD 53014-06 YKB21_5006 RETURN R RETURN L SEND L AGND SEND R 100I AGND From POWER SUPPLY B.
  • Page 19 0.1s FLAT XFDCDEND IC2A SDOUT RDY_BSY XWRL TC7WU04F FLAT IC3C IC10 TC7S32F EM50/EM30 Software Selection XDMA XDMARS Model MODSEL (P5-3) IC3D PHAI EM-50 IC18B XKEYB 74VHC139F EM-30 EPF8452ALC-4 84PIN PLCC FPGA_DMA NOTE: Parts inside dashed lines are NIU in EM-30...
  • Page 20 A[0..21] D[0..15] IC15 P4-7 HM628128LFP-7 IC17 P4-7 IC16 1MBit 70ns SOP 32 pin E28F800B5B70 16/32M_MROM_44SOP 8Mbit FLASH 70ns TSOP 48pin 16/32MBit Rom 100ns SOP 44 pin DQ14 DQ13 DQ12 DQ11 DQ10 XWRL BACKUP XROM XRAM XWRL 0.1s A-1/DQ15 BYTE A-1(D15) XROM ELKS471FA XWRL...
  • Page 21 RA17 AMPC1.2716P 8X10Ks 10uF16 ELKS471FA 0.1s A[0..1] IC13 D[8..15] SSC1080 MK10 RA16 BR10 8X10Ks PHAI MK10 PHAI SC10 A[0..1] 10Ks BR10 To LEFT CONTACT B. XREADY FDS0 PR10 D[8..15] R125 10Ks XRDATA XMON0 R126 10Ks XWPRT XHDIR FDCCONT R127 10Ks XTRK0 XSTEP XRES...
  • Page 29 TP10 TESTPIN TP11 TESTPIN 100nF 18KS 100nF 0.1s IC12A 10uF25 UPC4570G 10uF25 1/4W 47uF16 1/4W 10KS 100S 10pFS 100S 15KS 33KS RIGHT LEFT 47uF16 1uF50 TDA1905 TDA1905 IC12B BZX79C5V1 UPC4570G 0.1s 10nFS MUTE MUTE 1uF50 -VCC DA204K 15KS 47KS 1uF50 1uF50 4.7uF25 4.7uF25...

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Em-30

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