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Boss CE-5(T) Service Notes

Boss CE-5(T) Service Notes

Chorus ensemble

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May 2002
CE-5(T)
SERVICE NOTES
Second Edition
Issued by RJA
SPECIFICATIONS............................................................. 2
LOCATION OF CONTROLS,PARTS LIST ................... 3
EXPLODED VIEW,PARTS LIST ..................................... 4
PARTS LIST........................................................................ 5
THE INSPECTION METHOD ........................................ 8
CIRCUIT BOARD.............................................................. 9
CIRCUIT DIAGRAM...................................................... 10
WARNING
Due to an IC change, the parts have been changed from serial No. KP16600.
We call the new type of this model, CE-5A for identifying the old type and new
type for convenience on service system.
Although the model name will change from "CE-5" to "CE-5A", the product
pedal is still labeled "CE-5".
The appearance of "CE-5" and "CE-5A" are the same. Identify by the serial
number or the model name that is silk-screen printed on the board.
When referring to the service notes or ordering parts, check the model name
using the above process.
This service note is for "CE-5A". Refer to "CE-5 SERVICE NOTES"(#17059623)
when repairing "CE-5". Variable resistor, jack, switch and mechanical parts for
the "CE-5" and "CE-5A" are compatible.
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.
17059623E2
Printed in Japan (0800) (AS)

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Summary of Contents for Boss CE-5(T)

  • Page 1: Table Of Contents

    May 2002 CE-5(T) SERVICE NOTES Second Edition Issued by RJA SPECIFICATIONS............. 2 LOCATION OF CONTROLS,PARTS LIST ....3 EXPLODED VIEW,PARTS LIST ........4 PARTS LIST................ 5 THE INSPECTION METHOD ........8 CIRCUIT BOARD.............. 9 CIRCUIT DIAGRAM............10 WARNING Due to an IC change, the parts have been changed from serial No. KP16600. We call the new type of this model, CE-5A for identifying the old type and new type for convenience on service system.
  • Page 2: Specifications

    May 2002 SPECIFICATIONS Controls Pedal Switch Effect Level Modulation Rate Modulation Depth High Filter Low Filter Indicator Check Indicator (serves also as battery check indicator) Jacks Input Output A(MONO)/B AC Adaptor Input Impedance 1 M ohm Output Impedance 1 k ohm Recommended Load Impedance 10 k ohm or greater Residual Noise...
  • Page 3: Location Of Controls,Parts List

    CE-5(T) LOCATION OF CONTROLS,PARTS LIST fig.panel PART CODE PART NAME DESCRIPTION 13449711 AC ADAPTOR JACK HEC-0470-01-630 2253753801 PSA CAUTION 253-538 22480260 ROUND KNOB PR KNOB MF BLK/LCG 13289155 POTENTIOMETER (E.LEVEL, RATE) RK0971110 250KC 22480260 ROUND KNOB PR KNOB MF BLK/LCG 13289154 POTENTIOMETER (DEPTH) RK09711100K4A 100KB...
  • Page 4: Exploded View,Parts List

    May 2002 EXPLODED VIEW,PARTS LIST fig.explo [PARTS] PART CODE PART NAME DESCRIPTION Q’TY 13129710 SWITCH (PUSH) JM-0404 2226733300 CUSHION 226-333 F3419102 BATTERY CONNECTOR G253751603 BOTTOM CAUTION PSA FCC/CE/C-TICK/EMC GRY 2235730500 BOTTOM BASE 235-305 2202785100 BOTTOM COVER 202-851 2216756000 INSULATION SPACER 2215770201 PEDAL GUIDE BUSH 215-702...
  • Page 5: Parts List

    CE-5(T) PARTS LIST 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...
  • Page 6 May 2002 RESISTOR 00567323 RPC05T 223 J MTL.FILM RESISTOR 00567456 RPC05T 224 J MTL.FILM RESISTOR 00567334 RPC05T 273 J MTL.FILM RESISTOR R4,R8 00567345 RPC05T 333 J MTL.FILM RESISTOR R36,R52,R65 00567112 RPC05T 471 J MTL.FILM RESISTOR 00567245 RPC05T 472 J MTL.FILM RESISTOR R49,R51 00567378 RPC05T 473 J...
  • Page 7 CE-5(T) ACCESSORIES (Standard) 2604776702 OWNER’S MANUAL ENGLISH ******** BATTERY MANGANESE...
  • Page 8: The Inspection Method

    May 2002 THE INSPECTION METHOD Output waveform check Connect an oscillator to the INPUT jack, and input test signal. Connect an oscilloscope to the OUTPUT A jack. Check that the minimum and maximum values for the delay time are as follows. fig.check1 INPUT SET CONTROLS...
  • Page 9: Circuit Board

    CE-5(T) CIRCUIT BOARD fig.circit View from component side fig.circit View from foil side...
  • Page 10: Circuit Diagram

    May 2002 CIRCUIT DIAGRAM fig.circit...