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S

ERVICE  

G

UIDE

Preface 

Important Notice 

 
No warranty of any kind is made in regard to this material, including, but not limited to, implied warranties of 
merchantability or fitness for a particular purpose.  We are not liable for any errors contained herein or incidental or 
consequential damages in connection with furnishing, performance or use of this material. 
 
This material is for internal purpose only. No part of this document may be reproduced, transmitted, stored in a 
retrieval system, transcribed, or translated into any language or computer language in any form or by any means 
electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without express written consent and 
authorization. 
 
We have taken reasonable measures to provide information in this manual that is complete and accurate. However, 
the material in this guide is for information only; we reserve the right to make changes in product design without 
reservation and without prior notification.  For the latest revision please contact your distributor.  
 
All trademarks mentioned herein, registered or otherwise, are the properties of their various respective owners. 
 
Copyright © 2014.  All rights reserved. 
 

Radio Notice 

This equipment generates uses and can radiate radio frequency energy. If not installed and used in accordance 
with the instructions in this manual, it may cause interference to radio communications. The equipment has been 
tested and found to comply with the limits for a Class A computing device pursuant to EN55022 and 47 CFR, Part 2 
and Part 15 of the FCC rules. These specifications are designed to provide reasonable protection against 
interference when operated in a commercial environment. 
 

Radio and Television Interference 

Operation of this equipment in a residential area can cause interference to radio or television reception. This can be 
determined by turning the equipment off and on. The user is encouraged to try to correct the interference by one or 
more of the following measures: 
- Reorient the receiving antenna. 
- Relocate the device with respect to the receiver. 
- Move the device away from the receiver. 
- Plug the device into a different outlet so that the device and the receiver are on different branch circuits. 
If necessary the user may consult the manufacturer, and authorized dealer, or experienced radio/television 
technician for additional suggestions. The user may find the following booklet prepared by the Federal 
Communications Commission helpful: “How to Identify and Resolve Radio-TV Interference Problems.” This booklet 
is available from the U.S. Government Printing Office, Washington, DC 20402 U.S.A., Stock No. 004000003454. 
 
 
 

For CE-Countries 

 
This scanner is in conformity with CE standards. Please note that an approved, CE-marked power supply unit 
should be used in order to maintain CE conformance. 
 

This manual is in A4 format. Please check your printer setting before printing it out.

Z-3251 Service Guide  

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Summary of Contents for Z-3251

Page 1: ...ess Scanner Service Guide Revision History Changes to the original manual are listed below Version Date Description of Version 1 0 April 29 2014 Initial release 1 1 July 17 2015 Updated battery cover...

Page 2: ...ce to radio communications The equipment has been tested and found to comply with the limits for a Class A computing device pursuant to EN55022 and 47 CFR Part 2 and Part 15 of the FCC rules These spe...

Page 3: ...eface 2 Important Notice 2 Radio Notice 2 Radio and Television Interference 2 For CE Countries 2 Table of Contents 3 Scanner Parts 4 Take Apart 5 Before You Start 5 Important Instructions 5 Tools to P...

Page 4: ...562 132500 043 Engine fixture 1 7 031 004010 520 FFC cable 1 8 542 090000 001 Dust cover 1 9 601 932500 003 Silicon button 1 10 521 202000 3R0 Self tapping screw M1 6 3 0mm 2 11 520 202R35 3R0 Self t...

Page 5: ...se instructions completely before you begin Follow all instructions Heed all warnings Tools to Prepare Philips screwdriver Please follow these steps to take apart the scanner 1 Remove the dust cover p...

Page 6: ...SERVICE GUIDE 3 Unscrew the screw as marked 4 Remove the sealing O ring battery cover button and battery cover fixture 5 Remove the screws as marked Z 3251 Service Guide 6 10...

Page 7: ...SERVICE GUIDE 6 Separate the top and bottom cover 7 Remove the silicon button 8 Remove the screws from the main board Z 3251 Service Guide 7 10...

Page 8: ...SERVICE GUIDE 9 Separate the main board from the bottom case 10 Remove the rubber ring 11 Open the lock between the main board and the scan engine Z 3251 Service Guide 8 10...

Page 9: ...SERVICE GUIDE 12 Remove the FFC cable 13 Remove the screws from the main board 14 Remove the laser engine from the main board Z 3251 Service Guide 9 10...

Page 10: ...Service Guide 10 10 SERVICE GUIDE 15 Remove the screws from the engine fixture 16 Separate the engine and the fixture Note To assemble the device please start from the last step and work your way bac...

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