Midland 91-1060-91-1110 Service Manual Addendum

Service Manual Addendum for Midland 91-1060-91-1110 Radio (62 pages)

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554/554336-911060911110.pdf file (28 Aug 2023)
  • Manufacturer: Midland
  • Category of Device: Radio
  • Document: 91-1060-91-1110, File Type: PDF Service Manual Addendum
  • Updated: 28-08-2023
  • Count of Pages: 62
Download 91-1060-91-1110 Manual (62 pages)

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Data: UPD 28th August 2023

Midland 91-1060-91-1110 Radio PDF Service Manual Addendum (Updated: Monday 28th of August 2023 01:36:18 AM)

Rating: 4.6 (rated by 42 users)

Compatible devices: ALAN 8001S EURO, 200, G-223, DBR2500, 210 DS, X-Tra Talk GXT1000 Series, 75-822, Alan 8001 XT.

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Text Version of Midland 91-1060-91-1110 Service Manual Addendum (Summary of Contents)

(Ocr-Read of the Midland 91-1060-91-1110 Document (Main Content), UPD: 28 August 2023)
  • 1, Midland 91-1060-91-1110 SERVICE MANUAL ADDENDUM P25/FM TWO-WAY LAND MOBILE RADIO BASE TECH III BASE/REPEATER STATION 91-1060-91-1110 91-4050-91-4100 LOW CURRENT MODELS VHF HIGH BAND UHF BAND Part Number: 680-100-2049 Revision A 1/12 …

  • 2, 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 conta…

  • 3, TABLE OF CONTENTS Manual Supplement Information ii Table of Contents iii Acronyms and Abbreviations iv GENERAL INFORMATION Specifications 1-2 Accessories 3-4 PREPARATION Alignment 5-12 CIRCUIT DESCRIPTION Description 13-18 DIAGRAMS VHF/ UHF General Block Diagrams 19-22…

  • 4, ACRONYMS AND ABBREVIATIONS Below is a list of common electrical abbreviations used in documentation. CTCSS --------------------- Continuous Tone-Controlled Squelch System DCS (or CDCSS) --------- Continuous Digital-Controlled Squelch System EEPROM ------------------ Electrically Erasable …

  • 5, Midland 91-1060-91-1110 General Information Low Current Base Tech 3.5 SPECIFICATIONS -VHF General Frequency Range: A Band: 136-156 MHz, B Band: 146-174 MHz Number of Channels: 500 channels with name, 10 groups of 50 channels Channel Spacing: FM 12.5 / 20 / 25 / 30 kHz Digital C4FM Operation Mode: …

  • 6, Midland 91-1060-91-1110 General Information Low Current Base Tech 3.5 SPECIFICATIONS -UHF General Frequency Range: A Band: 400-435 MHz, B Band: 440-475 MHz C Band: 465-500 MHz, D Band: 485-520 MHz Number of Channels: 500 channels with name, 10 groups of 50 channels Channel Spacing: FM 12.5 / 20 / 25 / 30 kHz; Digit…

  • 7, General Information Low Current Base Tech 3.5 OPTIONS & ACCESSORIES 71-7220B 30 AMP Rack-mount Power Supply 220/110VAC 71-1230BM Battery Back-up Module for 7220B 71-0033 DC Power Cable, 48” 71-7801 External TX/RX Antenna Relay (Up to 400 Watts) 71-7751 Internal TX/RX An…

  • 8, General Information Low Current Base Tech 3.5 71-8885AC Option Shelf with Slides / Easy Access & AC Supply with Battery Charge 71-8885D Option Shelf with Slides / Easy Access & DC Operation 71-7206 Tone Termination Lightning / Surge Protection (2wire / 4-wire) 71-7207 …

  • 9, Alignment Procedures Low Current Base Tech 3.5 THIS PAGE INTENTIONALLY LEFT BLANK 5 © 2012 Midland Radio Corporation …

  • 10, Alignment Procedures Low Current Base Tech 3.5 RECEIVER (RX MAIN UNIT) 1. Pre-selector and Post-selector Tuning Both selectors have been pre-tuned at the factory, so no alignment is required. 2. FVR001 Tight Squelch Level This potentiometer allows adjustment to the tight squelch level. 3. FVR002 D…

  • 11, Midland 91-1060-91-1110 Alignment Procedures Low Current Base Tech 3.5 FVR001 Tight Squelch FVR002 De-mod Bias Figure 1: Receive Module (RX Main Unit) Alignment Adjustments 7 © 2012 Midland Radio Corporation …

  • 12, Midland 91-1060-91-1110 Alignment Procedures Low Current Base Tech 3.5 EXCITER (TX MAIN UNIT) 1) FVR201 Sub-Audible Modulation Balance This potentiometer sets modulation balance below 300 Hz. Carefully align this potentiometer to obtain flat deviation from the lowest to the highest frequency programmed in the tra…

  • 13, Midland 91-1060-91-1110 Alignment Procedures Low Current Base Tech 3.5 6) Electronic Transmitter Alignment The station must first be put into “Adjust Mode.” TP2 A lignment Mode Figure 3: Entering Alignment Adjust Mode 7) Entering & Exiting Alignment Adjustment Mode a) If not already, power off the radio. …

  • 14, Alignment Procedures Low Current Base Tech 3.5 8) Maximum Analog Deviation Limiting Alignment (Base Station and Repeater) a) Press the “#” key on the Front Panel until second line of the LCD displays “ANALOG DEVI.” b) Apply a 1 kHz tone at the microphone input at a level required to…

  • 15, Alignment Procedures Low Current Base Tech 3.5 11) CTCSS Deviation Alignment a) Press the “#” key on the Front Panel until the second line of the LCD displays “CTC DEVI WID.” b) Activate PTT. c) While monitoring peak FM deviation, adjust the deviation level to obtain 500 Hz ± 10 Hz p…

  • 16, Alignment Procedures Low Current Base Tech 3.5 FRONT PANEL UNIT 1) VR40 ce and Noise Squelch can be set. t. n be set. 2) F This potentiometer allows for fine adjustment of the High-Power level of the transmitter output when 1 Alignment This is to set volume level by pulse code switch. Press on…

  • 17, Circuit Description Low Current Base Tech 3.5 LOW CURRENT IMPROVEMENTS In order to improve standby current consumption the Receiver Unit, Transmitter Unit, Analog Logic Unit and Front Panel Unit have been modified from the original Base Tech III configuration. These improvements will start to …

  • 18, Midland 91-1060-91-1110 Circuit Description Low Current Base Tech 3.5 EXCITER UNIT 1) VCO Section The oscillator circuit generates transmitter frequency. Then this signal is fed to the 3-stage of amplifier, buffer amplifier Q302, pre-amplifier IC301 and post amplifier Q303 and lead to the final amplifier, and lead to t…

  • 19, Circuit Description Low Current Base Tech 3.5 DESCRIPTION OF CIRCUITS TO STABILIZE TX AND RX FREQUENCY The transmitter and receiver each use a TCVXO (Temperature Compensated Voltage-Controlled Crystal Oscillator) to generate the 12.00 MHz reference frequency used within their respective PLL and VCO circuits. …

  • 20, Circuit Description Low Current Base Tech 3.5 FRONT PANEL UNIT 1) LCD Display Section LCD display is constructed by 20 characters x 4 lines. Each character consist of 7x8 matrix. The LCD backlight dimmer circuit has been simplified to reduce current consumption. 2) LED Display Section The 5 LED’s are …

  • 21, Midland 91-1060-91-1110 Circuit Description Low Current Base Tech 3.5 REMOTE CONTROL A 25-pin D-sub connector for remote control is provided on the rear panel of Base Tech III. The functions of each pin are shown below. Pin No. Name Description I/O Levels Comments 1 CH0 LSB external binary channel selection …

  • 35, Front Panel Unit Layouts Low Current Base Tech 3.5 31 © 2012 Midland Radio Corporation …

  • 37, VHF RX Main Unit & RX VCO Unit Layouts Low Current Base Tech 3.5 RX Main Unit Top Side RX Main Unit Bottom Side RX VCO Unit Top Side RX VCO Unit Bottom Side 33 © 2012 Midland Radio Corporation …

  • 38, Midland 91-1060-91-1110 VHF TX Main Unit Layouts Low Current Base Tech 3.5 TX Main Unit Top Side TX Main Unit Bottom Side © 2012 Midland Radio Corporation 34 …

  • 39, UHF RX Main Unit & RX VCO Unit Layouts Low current Base Tech 3.5 RX Main Unit Top Side RX Main Unit Bottom Side RX VCO Unit Top Side RX VCO Unit Bottom Side 35 © 2012 Midland Radio Corporation …

  • 40, Midland 91-1060-91-1110 UHF TX Main Unit Layouts Low Current Base Tech 3.5 TX Unit Top Side TX Unit Bottom Side © 2012 Midland Radio Corporation 36 …

  • 41, Chassis Exploded View Low Current Base Tech 3.5 1. PA Unit Chassis 2. Mounting Plate 3. Heat Sink Assy 4. Bottom Cover 5. Right Side Assy 6. Left Side Assy 7. Front Handle 8. Front Panel Unit Assy 9. Rear Panel Assy 10. Right Protector 11. Left Protector 12. Logic Unit PCB Assy a. Analo…

  • 44, Midland 91-1060-91-1110 Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 40 COMPONENT MODULES Exploded View # (see page 47) Description Part # 8 Front Panel Unit Assembly (Low Current) 550-020-0061 12 a Analog Logic Unit PCB Assembly (Low Current) 650-010-0016 13 TX Main Unit…

  • 45, Parts List Low Current Base Tech 3.5 41 © 2012 Midland Radio Corporation FRONT PANEL UNIT INTERGRATED CIRCUITS BAJ2DD0WT IC401 TDA1519C IC402 XC6202P502P IC403 TA75S01F(TE85R,F) IC404, IC410 TC7WT125FU IC405, IC406, IC407, IC408 XC221A1200MR IC409 TA75S558F(TE85R,F) IC411 SC2004C LCD401 …

  • 46, Midland 91-1060-91-1110 Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 42 FRONT PANEL UNIT (CONT.) CONNECTORS 00-6200-520-330-000+ CN402, CN403 00-6200-510-130-000+ CN404 00-6200-508-130-000+ CN406 290A-88-30-119 CN409 FFC-14T7BMEP1B CP401(LCD) FFC-5T14AMEP1B CP402(LCD) B 3P-VH CN401 SB20-02…

  • 47, Parts List Low Current Base Tech 3.5 43 © 2012 Midland Radio Corporation ANALOG LOGIC UNIT (CONT.) CAPACITORS (CONT.) EECS5R5H105 C10 GRM216B11C105KA01L C11, C12, C39, C46, C50, C54, C67, C68, C84, C85, C86, C91, C109, GRM1882C1H150JA01D C15, C16 EMVK160ADA470MF55G C27, C28, C30 GRM188B11H152KA01…

  • 48, Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 44 ANALOG LOGIC UNIT (CONT.) MISCELLANEOUS RCTCTE TP1, TP2, TP3 ERTJ1VT222JA TH1 DIC-149-3P JP3 SB20-03WS CN1, CN4 00-6200-516-230-000+ CN6, CN8, CN9 00-6200-520-330-000+ CN2, CN3, CN5 AXN420-530S CN7 71LOG119-1 PC…

  • 49, Parts List Low Current Base Tech 3.5 45 © 2012 Midland Radio Corporation RX MAIN UNIT VHF”B” (CONT.) CAPACITORS (CONT.) GRM1882C1H120JA01D C837 GRM1882C1H9R0DD01D C838 GRM1882C1H150JA01D C840, C846, C849, C862 GRM1882C1H100JZ01D C855 TEESVA1A475M8R C858 GRM188B11A224KA01D C859 GRM1882C…

  • 50, Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 46 RX VCO UNIT VHF “B” INTERGRATED CIRCUITS UPC1688G-T1 IC301 TK70008 IC302 TRANSISTORS 2SK508-T1B K53 Q301 2SC4325(TE85R) Q302 2SC3583-T1B(R34) Q303 RAF040P01 Q304, Q306 DIODES 1SV231(TPH3,F) D304 1SV232(TPH3…

  • 51, Parts List Low Current Base Tech 3.5 47 © 2012 Midland Radio Corporation TX MAIN UNIT VHF”B” (CONT.) TRANSISTORS 2SK3018-T106 Q201, Q205, Q209, Q217 UMG1N TR Q202, Q212 UMC2N-TR Q204, Q210 2SD2351-T106 Q207 RTU002P02-T106 Q208 2SC2954-T1 Q211 DTC124EUA-T106 Q213 2SC4250(TE85R,F) Q…

  • 52, Midland 91-1060-91-1110 Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 48 TX MAIN UNIT VHF”B” (CONT.) RESISTORS (CONT.) MCR10EZHJ 391 R250 MCR18EZHJ 100 R251 MCR03EZHJ 223 R252, R253 MCR03EZHJ 102 R254, R236, R280 MCR03EZHJ 153 R257, R278, R285 MCR03EZHJ 332 R261, R294 MCR03E…

  • 53, Midland 91-1060-91-1110 Parts List Low Current Base Tech 3.5 49 © 2012 Midland Radio Corporation RX MAIN UNIT UHF "A" (CONT.) INDUCTORS (CONT.) #3079 L862, L863, L867, L868, L869 LQW31HNR10J L865 LL2012-FHL22NJ L866 LQW31HN23NJ L870 CAPACITORS GRM216B11C105KA01L C002, C003, C807, C842, C843 TEESVA1C475M8…

  • 54, Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 50 RX MAIN UNIT UHF "A" (CONT.) CONNECTORS CRS5001-0801F TP801 52030-1629 CN802 LPC-2FDS+C CS802,CS803 LPC-6FDS+C CS801 LPC-7FDS+C CS804 4A-S587 CN801 MISCELLANEOUS SE-3 X 6 PCB SEMS SCREW SE-3 X 8 COVER SEMS …

  • 55, Parts List Low Current Base Tech 3.5 51 © 2012 Midland Radio Corporation RX VCO UNIT UHF "A" (CONT.) MISCELLANEOUS RCT TP301 LPC-2T7M+S CP302 LPC-6T7M+S CP301 4A10-2169 VCO SHIELD 4A10-2170 VCO COVER 4A10-3029 VCO SHIELD 71TCU11Y-1 PCB TX MAIN UNIT UHF "A" INTERGRATE…

  • 56, Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 52 TX MAIN UNIT UHF "A" (CONT.) RESISTORS MCR03EZHJ 000 R200, R209, R218, R281, R285, R228, R287,R237 MCR03EZHJ 562 R203 ,R210, R295 MCR03EZHJ 822 R204, R270 MCR03EZHJ 103 R205, R206, R211, R223, R224, R225, R…

  • 57, Midland 91-1060-91-1110 Parts List Low Current Base Tech 3.5 53 © 2012 Midland Radio Corporation RX MAIN UHF "B" (CONT.) TCXO/ CRYSTAL FILTER C-TYPE 0.5ppm TCXO801 MF73Q 73.35MHZ XF801 INDUCTORS #3060(SMD-0071) T801, T802, T803 FBM3216HM501NT BL801, BL804 BLM21BD421SN1D BL802, BL803, BL805, BL806, BL808,…

  • 58, Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 54 RX MAIN UHF "B" (CONT.) MISCELLANEOUS SE-3 X 6 PCB SEMS SCREW SE-3 X 8 COVER SEMS SCREW 70-033046 FLAT CABLE, 16P x 3" OPT-121-00 SPRING TWT-113-00 SPRING 3A10-0654 RX/RF BPF COVER 4A10-3180 …

  • 59, Midland 91-1060-91-1110 Parts List Low Current Base Tech 3.5 55 © 2012 Midland Radio Corporation TX MAIN UHF "B" INTERGRATED CIRCUITS BD3931FP IC201 XC6202P702P IC202 TC75W51FU(TE12L,F) IC204 TA75S01F(TE85R,F) IC205, IC213 TC7WT125FU(TE12L,F) IC206, IC207 MB1511PFV-G-BND-EFE IC208 TC4S66F(TE85L,F) IC209 NJU7662M-…

  • 60, Midland 91-1060-91-1110 Parts List Low Current Base Tech 3.5 © 2012 Midland Radio Corporation 56 TX MAIN UHF "B" (CONT.) RESISTORS MCR03EZHJ 000 R200, R209, R218, R281, R285, R228, R287, R237 MCR03EZHJ 562 R203, R210, R295 MCR03EZHJ 822 R204, R270 MCR03EZHJ 103 R205, R206, R211, R223, R224, R…

  • 61, Parts List Low Current Base Tech 3.5 57 © 2012 Midland Radio Corporation REPLACEMENT PARTS ORDERING To speed delivery and avoid errors, have the following information ready when ordering replacement parts: 1. Identification of the part. The best identification is the Midland P…

  • 62, Midland 91-1060-91-1110 5900 PARRETTA DRIVE • KANSAS CITY • MISSOURI • 64120 PHONE: (816) 241-8500 • FAX: (816) 241-5713 www.midlandradio.com …

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