Important Information
All rights reserved. No part of this publication may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language without the
written permission of Midland Radio Corporation.
No part of any copyrighted computer programs contained in the products referred to in
this manual may be copied or reproduced without the express written consent of Midland
Radio Corporation.
Midland Radio Corporation reserves the right to change the products described in this
manual without prior notice.
© 2012 Midland Radio Corporation
This manual is designed to facilitate the set-up and service of the Midland 91-1060 / 1110
91-4050 / 91-4100 P25 Base Tech III series. As necessary, service manual supplements
will be published and distributed on the following forms:
Manual Addition (MA)
For supplemental information useful in product
service or improvement. Printed on BLUE
paper.
Change
Notice
(CN)
For details about changes made during
production by model and serial number. Printed
on YELLOW paper.
Manual Correction (MC)
For correcting literature errors not related to
production changes. Printed on GREEN paper.
Technical Bulletin (TB)
For solutions to field problems and tips for
performance improvement. Printed on PINK
paper.
Comments or suggestions concerning areas of manual improvement are welcome.
© 2012 Midland Radio Corporation
ii
Summary of Contents for 91-1060-91-1110
Page 22: ...Circuit Description Low Current Base Tech 3 5 Notes 2012 Midland Radio Corporation 18 ...
Page 23: ...Block Diagram VHF 60 Watt Low Current Base Tech 3 5 19 2012 Midland Radio Corporation ...
Page 24: ...Block Diagram VHF 110 Watt Low Current Base Tech 3 5 2012 Midland Radio Corporation 20 ...
Page 25: ...Block Diagram UHF 50 Watt Low Current Base Tech 3 5 21 2012 Midland Radio Corporation ...
Page 26: ...Block Diagram UHF 100 Watt Low Current Base Tech 3 5 2012 Midland Radio Corporation 22 ...
Page 27: ...Front Panel Unit Schematic Low Current Base Tech 3 5 23 2012 Midland Radio Corporation ...
Page 28: ...Analog Logic Unit Schematic Low Current Base Tech 3 5 2012 Midland Radio Corporation 24 ...
Page 29: ...VHF RX Main Unit Schematic Low Current Base Tech 3 5 25 2012 Midland Radio Corporation ...
Page 30: ...VHF RX VCO Unit Schematic Low Current Base Tech 3 5 2012 Midland Radio Corporation 26 ...
Page 31: ...VHF TX Main Unit Schematic Low Current Base Tech 3 5 27 2012 Midland Radio Corporation ...
Page 32: ...UHF RX Main Unit Schematic Low Current Base Tech 3 5 2012 Midland Radio Corporation 28 ...
Page 33: ...UHF RX VCO Unit Schematic Low Current Base Tech 3 5 29 2012 Midland Radio Corporation ...
Page 34: ...UHF TX Main Unit Schematic Low Current Base Tech 3 5 2012 Midland Radio Corporation 30 ...
Page 35: ...Front Panel Unit Layouts Low Current Base Tech 3 5 31 2012 Midland Radio Corporation ...
Page 36: ...Analog Logic Unit Layouts Low Current Base Tech 3 5 2012 Midland Radio Corporation 32 ...
Page 42: ...THIS PAGE INTENTIONALLY LEFT BLANK 2012 Midland Radio Corporation 38 ...
Page 43: ...Palm Microphone Schematic Low Current Base Tech 3 5 39 2012 Midland Radio Corporation ...