Roland BOSS V-WAH PW-10 Service Notes
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Roland BOSS V-WAH PW-10 Service Notes

Roland BOSS V-WAH PW-10 Service Notes

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Mar.2002

TABLE OF CONTENTS

SPECIFICATIONS.............................................................2
LOCATION OF CONTROLS ..........................................3
EXPLODED VIEW PARTS LIST .....................................4
EXPLODED VIEW ............................................................4
PARTSLIST.........................................................................6
Copyright © 2002 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of ROLAND CORPORATION.
TEST MODE.......................................................................9
BLOCK DIAGRAM.........................................................13
CIRCUIT DIAGRAM ......................................................14
CIRCUIT BOARD............................................................16
17058047E0
SERVICE NOTES
Issued by RJA
Printed in Japan (0800) (NB)
PW-10 (T)

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Summary of Contents for Roland BOSS V-WAH PW-10

  • Page 1: Table Of Contents

    CIRCUIT DIAGRAM ............14 EXPLODED VIEW ............4 CIRCUIT BOARD............16 PARTSLIST.................6 Copyright © 2002 ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. 17058047E0 Printed in Japan (0800) (NB)

  • Page 2: Specifications

    Mar.2002 SPECIFICATIONS • Dimensions 100 (W) x 270 (D) x 100 (H; max.) mm 3-15/16 (W) x 10-11/16 (D) x 3-15/16 (H; max.) inches PW-10: Pedal Wah • Weight 1.3 kg/ 2 lbs 14 oz (including batteries) • Nominal Input Level -20 dBu •...

  • Page 3: Location Of Controls

    PW-10(T) LOCATION OF CONTROLS fig.panel KM02009AB RD901-40-15FW-B54-00D (F3449415) RD901-40-15FW-B54-08D (F3279793) (F3279855) L-34HDSL GL3ED8 KEYTOP S WITHOUT LENZ (1502928100) (15029342) (G247751301) PANEL BOTTOM FOOT R (G2217156) (F2359131) R KNOB (G2477122) BOTTOM COVER (G2187537) PEDAL PLATE R (G2357124) HTJ-064-12D (13449150MF) BTN M9D6M6 BOLT (H5029856) BATTERY COVER (G2017630)

  • Page 4: Exploded View Parts List

    Mar.2002 PW-10 (T) EXPLODED VIEW PARTS LIST EXPLODED VIEW [Parts] Part Code Part Name Q’ty G2187539 CASE G2187538 VR PEDAL G2357123 PEDAL PLATE F G2357124 PEDAL PLATE R G2199504 MIRROR ESCUTCHEON G2357122 REAR CUSHION F2359130 FRONT CUSHION G2357115 PEDAL FOOT H5039550 VR PEDAL NUT G2567153...

  • Page 5: Partslist

    Mar.2002 PARTSLIST fig.part1e CONSIDERATION ON PARTS ORDRING SAFETY PRECAUTIONS: When ordering any parts listed in the parts list, please specify the following items in the order sheet. The parts marked have PART NUMBER DESCRIPTION MODEL NUMBER safety-related characteristics. Use 22575241 Sharp Key C-20/50 only listed parts for replacement.
  • Page 6 PW-10(T) DIODE F5339138 1SS355 DIODE D1,D2 F5339137 SS14 VF=0.45V DIODE D4,D5 RESISTOR F2569127 MINISMDC075 POLY SWITCH 00566867 RPC05T 100 J MTL.FILM RESISTOR 00567023 RPC05T 101 J MTL.FILM RESISTOR R44,R70 00567156 RPC05T 102 J MTL.FILM RESISTOR R7,R37,R51 00567289 RPC05T 103 J MTL.FILM RESISTOR R1,R3,R8,R27,R28,R35,R39,R40,R50,R55,R66,R67 00567412...
  • Page 7 Mar.2002 SCREWS H5029325 SCREW 3x6 PAN HEAD TAPTITE-2 BZC BOTTOM (FRONT, REAR) H5019153 SCREW 3x12 PAN HEAD TAPTITE B1 BZC BOTTOM (CENTER) H5029333 SCREW 3x8 PAN HEAD TAPTITE B1 BZC MIRROR ESCT H5039510 NUT M9x12x2 FENI JACK H5039521 VR ACCESSORY NUT M7 H5039112 WASHER M9 JACK, VR PEDAL NUT...

  • Page 8: Test Mode

    PW-10(T) TEST MODE Input a square wave (2000Hz, 400mVp-p) and check the output waveform (DSP through) with an oscilloscope. fig.wave0_45 Required Items Generator Oscilloscope Noise meter Short plug (with a 47k ohm resistor built in) Monitor speaker (with an amplifier built in) List of Test Items DSP and EEPROM check WAH RANGE volume check...
  • Page 9 Mar.2002 5. BYPASS check Release the pedal so that the pedal stops at its initial pedal position. Note: Accurate calibration cannot be performed if the pedal is off the base or Set the [TYPE] volume knob to ‘VOICE.’ (The “MEMORY” indictor lights depressed beyond that point.
  • Page 10 PW-10(T) 9. CODEC (ADC L ch) check fig.wave2_45 Input a sine wave (1kHz, -20dBm). Set the [TYPE] volume knob to ‘BASE MIX.’ (The “MEMORY” indictor lights up red.) Check the output waveform (ADC L ch) with an oscilloscope. fig.wave4_45 8. CODEC (DAC MIX) check Set the [TYPE] volume knob to ‘CBY-WAH.’...
  • Page 11 Mar.2002 11. CODEC (ADC MIX) check Step down the pedal and check that the waveform changes smoothly. Check the waveform generated at the pedal position when it stops, using Input a sine wave (1kHz, +5dBm). an oscilloscope. Set the [TYPE] volume knob to ‘CUSTOM.’ (The “MEMORY” indictor fig.test4-1_30 lights up red.) Check the output waveform (AF-AD DSP through) with an oscilloscope.

  • Page 12: Block Diagram

    PW-10(T) BLOCK DIAGRAM fig.block FET SW BUFFER BUFFER INPUT OUTPUT Pre-Em De-Em FET SW IC2B (Flat) CODEC IC3B AF-AD Gain IC3A (AD/DA) IC2A VR (TYPE, WAH RANGE, DRIVE) VR1, VR2, VR3 LED (ON/OFF, MEMORY) LED2, LED1 MANUAL/MEMORY SW (MR3) BATTERY Photo Sensor RESET Circuit...

  • Page 13: Circuit Diagram

    Mar.2002 PW-10 (T) CIRCUIT DIAGRAM fig.main-c INPUT 2SK880GR HTJ-064-12D 0.47/16S 1/50 2SK879Y 1/50 OUTPUT 2SC3324GR 10/16 HTJ-064-12D D 3. 3 De-Emphasis 100k N.I.U N.I.U 1SS355 100k 10/16 10/16 N.I.U Pre-Emphasis 0.0022 100p 150kF AK4552VT 10/16 100p 10/16 IC2B IC3B LOUT 10/16 NJM2100M IC2A...

  • Page 14: Circuit Board

    Mar.2002 CIRCUIT BOARD fig_comp.eps View from components side fig_foil.eps View from foil side...

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