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Roland syb-5 Service Notes

Roland syb-5 Service Notes

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Sep.2004
SYB-5
SERVICE NOTES
Issued by RJA
CAUTIONARY NOTES ...................................................2
SPECIFICATIONS.............................................................2
LOCATION OF CONTROLS ..........................................3
LOCATION OF CONTROLS PARTS LIST ...................3
EXPLODED VIEW ............................................................4
EXPLODED VIEW PARTS LIST .....................................4
PARTS LIST........................................................................5
TEST MODE.......................................................................8
CIRCUIT BOARD............................................................12
CIRCUIT DIAGRAM......................................................14
Copyright © 2004 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of ROLAND CORPORATION.
17058286E0
Printed in Japan (0500) (TP)

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  • Page 1: Table Of Contents

    PARTS LIST................5 TEST MODE...............8 CIRCUIT BOARD............12 CIRCUIT DIAGRAM............14 Copyright © 2004 ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. 17058286E0 Printed in Japan (0500) (TP)

  • Page 2: Cautionary Notes

    • Part is sold commercially Options AC Adaptor (PSA-series) SPECIFICATIONS Expression Pedal (Roland EV-5) 0 dBu = 0.775 Vrms In the interest of product improvement, the specifications and/or appearance of SYB-5: Bass Synthesizer this unit are subject to change without prior notice.

  • Page 3: Location Of Controls

    SYB-5 LOCATION OF CONTROLS fig.panel LOCATION OF CONTROLS PARTS LIST PART CODE CATEGORY PART NAME DESCRIPTION Q’TY 22480220 KNOB,BUTTON P R-KNOB (INTERNAL) (SS) BF BLK/LCG 22480221 KNOB,BUTTON P O-KNOB (EXTERNAL) (OUTER) S BLK/LCG F327985401 POTENTIOMETER POTENTIOMETER RD912D-20-20FWH-B54-6009 13449150MF JACK,EXT TERMINAL...

  • Page 4: Exploded View

    Sep.2004 EXPLODED VIEW fig.bunkaizu.eps EXPLODED VIEW PARTS LIST [PART] PART CODE PART NAME DESCRIPTION 13129710 SWITCH(PUSH) JM-0404 2226733300 CUSHION F3419102 BATTERY CONNECTOR G253751603 BOTTOM CAUTION PSA FCC/CE/C-TICK/EMC GRY 2235730500 BOTTOM BASE 2202785100 BOTTOM COVER G2167301 INSULATION SPACER 2215770201 PEDAL GUIDE BUSH 2217710900 COIL SPRING 2235730400...

  • Page 5: Parts List

    SYB-5 PARTS LIST fig.part1e Due to one or more of the following reasons, SAFETY PRECAUTIONS: parts with parts code ******** cannot be supplied as service parts. The parts marked have safety-related characteristics. Use • Part supplied only as a component in a complete assembly only listed parts for replacement.
  • Page 6 Sep.2004 RESISTOR F5399154 MTL.FILM RESISTOR 27K J F5399152 MTL.FILM RESISTOR 22K J R7,R8,R10,R15,R16,R24,R28,R31,R32,R36,R 37,R38,R42,R61,R62,R65 F5399190 MTL.FILM RESISTOR 220K J F5399130 MTL.FILM RESISTOR 2.2K J F5399200 MTL.FILM RESISTOR 1M J R13,R26,R30,R35,R41,R43,R47,R51,R55,R79 F5399128 MTL.FILM RESISTOR 1K J R34,R40,R67,R74,R88 F5399147 MTL.FILM RESISTOR 15K J R11,R23,R27 F5429386 MTL.FILM RESISTOR...
  • Page 7 SYB-5 MISCELLANEOUS 22257257 EARTH TERMINAL ET1,ET2 2226733300 CUSHION 226-333 2217710900 COIL SPRING 217-109 G253751603 BOTTOM CAUTION PSA FCC/CE/C-TICK/EMC GRY F3419102 BATTERY CONNECTOR (006P) ACCESSORIES (Standard) G6017385 OWNER’S MANUAL ENGLISH G6017386 OWNER’S MANUAL JAPANESE G2507107 MODE SEAL...

  • Page 8: Test Mode

    MODE 7: DSP MUTE Check MODE 8: ANALOG BYPASS Maximum Output Check • Monitor speakers MODE 9: ANALOG MUTE Check • Expression pedal (Roland EV-5) MODE 10: ANALOG NOISE Check MODE 11: MODE Volume Check Test Categories The volume checks can be run only in the following sequence: EFFECT- >DIRECT->FREQ->RES->DECAY/RATE.
  • Page 9 SYB-5 advances to the FREQ Volume Check. A(MONO) and OUTPUT B. Confirm that each waveform output is and between -28.5 dBm and -25.5 dBm(FLAT). The DIRECT Volume Check and EFFECT Volume maximum value are detected simultaneously. The DIRECT Volume Check is not run unless the EFFECT 10.
  • Page 10 Sep.2004 fig.test-MAX.eps_40 INPUT. • Check the waveform output from both OUTPUT A(MONO) and OUTPUT B with the oscilloscope. Confirm that the waveform is the same as that shown in the figure and that there is no distortion. fig.test-MUTE.eps_40 1V/DIV, 1mS/DIV •...
  • Page 11 SYB-5 18. Noise Check • Connect the DC plug to the adapter jack. As this check places a drain on the batteries, use the adapter when performing this check. • Confirm that CHECK is lit and that the effects are on.

  • Page 12: Circuit Board

    Sep.2004 CIRCUIT BOARD fig.board-2 fig.board-1...
  • Page 13 SYB-5...

  • Page 14: Circuit Diagram

    5MHz A2001WV2-7P RESET HC49SM DSP (MR3) D 3. 3 N.I. U CN2-9 CN5-9 VR3b N.I.U DRST D 3. 3 SYB-5 MAIN BOARD ASSY CTYPE uPD780034AGK-B20-9ET SYB-5 V1.00 CN2-6 CN5-6 MODE 11.2896MHz 75E193M000 0.001 HC49SM N.I.U RD901-20-15FP-B50K-0D (PCB F2927027 00 1/6) D 3.

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