Sennheiser HMEC 26 Component Maintenance Manual With Illustrated Parts List
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Sennheiser HMEC 26 Component Maintenance Manual With Illustrated Parts List

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MODEL NO.
HMEC 26
HMEC 26-T
HMEC 26-CP
HMEC 26-V-CP
HMEC 26-KP
HMEC 26-V-KP
HMEC 26-BV-K
HMEC 26-B-K
HMEC 26-B-CP
HMEC 26-BV-CP
Cable -NP
Cable -B-KP
Cable -BV-KP
Cable -V-RP
Cable -V-KX
COMPONENT MAINTENANCE MANUAL
1st Issue
Revision 7
HEADSET
PART NUMBER
HEADSET
026-35
026-C5
026-35-999-3211
026-35-999-3251
026-35-999-3111
026-35-999-3161
026-35-999-1171
026-35-999-1191
026-35-999-2291
026-35-999-2281
—
—
—
—
—
WITH ILLUSTRATED PARTS LIST
SENNHEISER ELECTRONIC GMBH & CO. KG
Am Labor 1
30900 Wedemark, Germany
www.sennheiser.com
D8114
23-41-48
PART NUMBER
CABLE
—
—
-999-3211
-999-3251
-999-3111
-999-3161
-999-1171
-999-1191
-999-2291
-999-2281
-999-3811
-999-2191
-999-2171
-999-3661
-999-4161
TP Page 1
Mar 13/13

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Summary of Contents for Sennheiser HMEC 26

  • Page 1 — -999-2171 Cable -V-RP — -999-3661 Cable -V-KX — -999-4161 COMPONENT MAINTENANCE MANUAL WITH ILLUSTRATED PARTS LIST SENNHEISER ELECTRONIC GMBH & CO. KG Am Labor 1 30900 Wedemark, Germany www.sennheiser.com 23-41-48 1st Issue TP Page 1 Revision 7 Mar 13/13...
  • Page 2 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 46-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 TP Page 2 Mar 13/13...

  • Page 3: Description Of Change

    SENNHEISER ELECTRONIC GMBH & CO. KG Οχτ 30/09 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES TO: HOLDERS OF CMM 23-41-48 1st issue, revision 7, dated Mar 13/13. Revision 7 pages which have been revised or added are outlined below together with a description of the change.
  • Page 4 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 HIGH Page 2 Mar 13/13...

  • Page 5: Record Of Revisions

    Nov 12/12 SENNHEISER ELECTRONIC GMBH & CO. KG Record of COMPONENT MAINTENANCE MANUAL Revisions HMEC 26-SERIES RECORD OF REVISIONS REV. ISSUE INSERTED REV. ISSUE INSERTED DATE DATE DATE DATE Feb 10/10 Apr 22/10 May 25/11 Oct 10/11 Nov 12/12 Jan 23/13...
  • Page 6 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 ROR Page 2 Mar 13/13...

  • Page 7: Record Of Temporary Revisions

    Jan 10/09 SENNHEISER ELECTRONIC GMBH & CO. KG Record of COMPONENT MAINTENANCE MANUAL Temporary HMEC 26-SERIES Revisions RECORD OF TEMPORARY REVISIONS TEMPORARY REVISION NO. PAGE NO. ISSUE DATE INCORPORATED 23-41-48 RTR Page 1 Jan 10/09...
  • Page 8 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 RTR Page 2 Jan 10/09...

  • Page 9: Service Bulletin List

    Jan 10/09 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL Service HMEC 26-SERIES Bulletin List SERVICE BULLETIN LIST SB NO. INCLUDED STATEMENT TITLE REVISIONS APPLICABILITY 23-41-48 SBL Page 1 Jan 10/09...
  • Page 10 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 SBL Page 2 Jan 10/09...

  • Page 11: List Of Effective Pages

    SENNHEISER ELECTRONIC GMBH & CO. KG Nov 12/12 COMPONENT MAINTENANCE MANUAL List of HMEC 26-SERIES Effective LIST OF EFFECTIVE PAGES Pages SUBJECT PAGE DATE SUBJECT PAGE DATE Title Page TP 1 Mar 13/13 2009 Feb 10/10 TP 2 Blank 2010...
  • Page 12 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES 10016 Mar 13/13 10017 Mar 13/13 10018 Mar 13/13 10019 Mar 13/13 10020 Mar 13/13 Nov 12/12 10021 Mar 13/13 10022 Mar 13/13 10023 Mar 13/13 10024 Mar 13/13...

  • Page 13: Table Of Contents

    Nov 12/12 SENNHEISER ELECTRONIC GMBH & CO. KG Table of COMPONENT MAINTENANCE MANUAL Contents HMEC 26-SERIES TABLE OF CONTENTS PAGE INTRODUCTION INTRO 1 DESCRIPTION AND OPERATION General Description Specification TESTING AND FAULT ISOLATION 1001 General 1001 Tools, Fixtures, Equipment and Consumables...
  • Page 14 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES 9001 Test tools and equipment 9001 Consumables 9001 ILLUSTRATED PARTS LIST 10001 General 10002 Material Arrangement 10002 How to use the Parts List...
  • Page 15 All procedures described in this manual have been performed and verified acceptable by trained personnel at SENNHEISER ELECTRONIC GMBH & CO. KG. A competent shop mechanic who is unfamiliar with these units should, with a minimum amount of effort and tools, be able to isolate the failure of a non-functional unit and restore it to service.
  • Page 16 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES kg ................kilogram lb .

  • Page 17: Description And Operation

    DESCRIPTION AND OPERATION tion General The headset assemblies of the HMEC 26 series are produced for the use in all types of jet aircraft. Description The headset assemblies, referred to as the Headsets, have these main components: - a headset - a cable assembly referred to as the Cable.
  • Page 18 Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES The difference between the headset assemblies of the HMEC 26 series are the Cables that are connected to them. Table 1 gives the functions of the different headset assemblies. MODEL NO. DESCRIPTION...
  • Page 19 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Different Cables can be connected to the headset of the HMEC 26 series. The Cables have the following components. Table 2 gives the components and functions of the different Cables. MODEL NO.
  • Page 20 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Figure 2 HMEC 26 Cable series 23-41-48 Page 4 Feb 10/10...

  • Page 21: Specification

    Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Specification CHARACTERISTICS SPECIFICATION Headphone: Transducer principle dynamic, closed Ear coupling supra-aural Frequency response 20 to 14,000 Hz Impedance 600 ohms mono / 1,200 ohms stereo Sensitivity...
  • Page 22 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 6 Feb 10/10...

  • Page 23: Testing And Fault Isolation

    Feb 10/10 SENNHEISER ELECTRONIC GMBH & CO. KG Testing COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Fault Isola- TESTING AND FAULT ISOLATION tion General NOTE: BEFORE YOU DISASSEMBLE THE HEADSET, DO THE TESTS DESCRIBED IN THIS SECTION TO FIND POSSIBLE DEFECTS AND THE NECESSARY MAINTENANCE STEPS. IF YOU DO NOT FIND ANY DEFECTS, NO MORE MAINTENANCE IS NECESSARY.
  • Page 24 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Operational test of the Headset (with Cable) Operational test of the headphones ACTION RESULT (1) Connect the test cable of the sine wave generator (2, Table 1001) to the related pins of the connector (Ref.
  • Page 25 C. Adjusting the microphones sensitivity/Re-adjusting to factory pre-set ± The microphone sensitivity is factory pre-set by Sennheiser to 80 mV/Pa (40 mV 6 dB according to RTCA DO-214, subparagraph 2.2.1.1). This value is optimized for most cases of operation and needs no adjustment.
  • Page 26 Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Operational test of the Talk Through function NOTE: THIS PROCEDURE IS ONLY APPLICABLE TO HMEC 26-T ACTION RESULT (1) To supply electrical power to the control unit put two new fully charged batteries...
  • Page 27 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Operational test of the mono/stereo switch of the Cable NOTE: THIS PROCEDURE IS ONLY APPLICABLE TO HEADSETS WITH CABLES -BV-K, -BV-KP, -V-KP, -V-RP AND -V-KX. NOTE: MAKE SURE THAT THE L/R BOOM KNOB IS IN THE L POSITION.
  • Page 28 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Test of the volume control for the MONO and STEREO switch position of the Cable NOTE: THIS PROCEDURE IS ONLY APPLICABLE TO HEADSETS WITH CABLES -BV-K, -BV-CP, -V-RP, -V-CP, -V-KP, -BV-KP AND -V-KX.
  • Page 29 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Test of the L/R boom knob of the Cable NOTE: THIS PROCEDURE IS ONLY APPLICABLE TO HEADSETS WITH CABLES -BV-K, -BV-CP, -V-RP, -V-CP, -V-KP, -BV-KP AND -V-KX.
  • Page 30 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES ™ Test of the NoiseGard on/off switch NOTE: REFER TO FIG. 1002. ACTION RESULT (1) Connect the test cable of the power supply (1, Table 1001) to the related ™...
  • Page 31 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES For battery-powered Headsets (-BV-K, -BV-CP, -B-CP, -B-K): ACTION RESULT (1) Only applicable to -BV-KP, -BV-K, -B-K, -B-KP, -BV-CP, -B-CP. Connect power supply (1, Table 1001) at battery contacts directly with the positive and negative line.
  • Page 32 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Operational test of assembled parts Test of the Cable with connector NOTE: REFER TO TABLE 1002, FIG. 1003 AND FIG. 1004. ACTION RESULT (1) Set the multimeter (3, Table 1001) to the conductivity mode.
  • Page 33 Switch mono Volume Squelch Microphone stereo speaker´s voice signal * Check the settings of the volume control, squelch and the mono/stereo switch of the intercom. Figure 1002 Test setup for the HMEC 26 series 23-41-48 Page 1011 Feb 10/10...

  • Page 34: Fault Isolation 1012

    (rd) Mic + blue (bl) Mic – screen (scr) Screen, Audio -, DC- Table 1002 Cable identification sectional view sectional view Figure 1003 System connector cable for the HMEC 26 series (non solder side) 23-41-48 Page 1012 Feb 10/10...
  • Page 35 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES Connector assignment Cable -CP, -V-CP, -B-CP, -BV-CP Solder side Audio Hi Audio Lo / DC– Microphone Hi Microphone Lo Power supply NoiseGard (DC+) Cable -V-KX Solder side...
  • Page 36 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26 SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 1014 Feb 10/10...

  • Page 37: Schematic And Wiring Diagrams

    Feb 10/10 SENNHEISER ELECTRONIC GMBH & CO. KG Schematic COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Wiring Dia- SCHEMATIC AND WIRING DIAGRAMS grams Schematic and Wiring Diagrams Figure 2001 HMEC 26 headphone PCBs 23-41-48 Page 2001 Feb 10/10...
  • Page 38 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2002 Wiring diagram Cable -CP, -NP 23-41-48 Page 2002 Feb 10/10...
  • Page 39 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2003 Wiring diagram Cable -KP 23-41-48 Page 2003 Feb 10/10...
  • Page 40 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2004 Wiring diagram Cable -BV-K 23-41-48 Page 2004 Feb 10/10...
  • Page 41 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2005 Wiring diagram Cable -BV-CP 23-41-48 Page 2005 Feb 10/10...
  • Page 42 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2006 Wiring diagram Cable -B-CP, -B-KP 23-41-48 Page 2006 Feb 10/10...
  • Page 43 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2007 Wiring diagram Cable -V-KP, -BV-KP 23-41-48 Page 2007 Feb 10/10...
  • Page 44 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2008 Wiring diagram Cable -V-RP 23-41-48 Page 2008 Feb 10/10...
  • Page 45 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2009 Wiring diagram Cable -V-CP 23-41-48 Page 2009 Feb 10/10...
  • Page 46 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2010 Wiring diagram Cable -B-K 23-41-48 Page 2010 Feb 10/10...
  • Page 47 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 2011 Wiring diagram cable -V-KX 23-41-48 Page 2011 Feb 10/10...
  • Page 48 HMEC 26: gr (no signal) HMEC 26-T: gr System connector socket (TalkThrough-Mute) Contacts * Factory-made programming line, do not connect ! Microphone arm with microphone BKE 46 Microphone Figure 2012 HMEC 26 / HMEC 26-T headset: Block diagram 23-41-48 Page 2012 Feb 10/10...

  • Page 49: Disassembly 3001

    OBEY ALL ESD SAFETY PRECAUTIONS WHEN YOU HANDLE ELECTROSTATIC SENSITIVE PARTS. NOTE: The procedure that follows is applicable to all Headsets of the HMEC 26 headset series and also to the two headphone cap sides. For cross-references to illustrations made in this chapter, refer to the IPL.
  • Page 50 REPLACEMENT IS RECOMMENDED. NOTE: FOR HMEC 26, REFER TO IPL FIG. 1 AND IPL FIG. 2; FOR HMEC 26-T, REFER TO IPL FIG. 3 AND IPL FIG. 4.FOR THE SCREWDRIVER POSITIONS, REFER TO FIG. 3001. (1) Remove the screws (090).
  • Page 51 NOTE: REF. CHAP. C, REF. FIG. 2001. FOR HMEC 26, REFER TO IPL FIG. 1 AND FOR HMEC 26-T, REFER TO IPL FIG. 3. (1) Desolder all headband leads on both sides. (2) Remove the headband cable of the strain-relief at the PCB.
  • Page 52 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Disassembly of the split headband (Ref. IPL Fig. 18 and Fig. below) (1) Removal of the latch for headband (030) (a) Use a small flat screwdriver and press out the latch for headband (030).
  • Page 53 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES (4) Replacement of the hollow profile (050) NOTE: Refer to IPL Fig. 18 and Fig. below. (a) Remove the related headband padding from the damaged hollow profile (050).
  • Page 54 THIS PROCEDURE IS ONLY APPLICABLE TO THE MICROPHONE SIDE. NOTE: FOR HMEC 26, REFER TO IPL FIG. 1 AND IPL FIG. 2. FOR HMEC 26-T, REFER TO IPL FIG. 3 AND IPL FIG. 4. FOR THE TWO HEADSETS, REFER TO FIG. 3002.
  • Page 55 (5) Push the optical waveguide (046, IPL Fig. 3; 030, IPL Fig. 4) out of the cap (040, 070) from the inside. Removal of the Talk Through rocker button NOTE: THIS PROCEDURE IS ONLY APPLICABLE TO THE NON MICROPHONE SIDE CAP OF THE HMEC 26-T HEADSET. NOTE: REFER TO IPL FIG. 3.
  • Page 56 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Disassembly of Cables -BV-CP, -B-CP, -V-KP, -V-RP, -V-CP, -BV-K, -B-KP, -BV-KP, -B-K and -V-KX NOTE: REFER TO IPL FIG. 8 TO IPL FIG. 16 (1) Use a screwdriver to remove the screws from the housing (010): - Fig.

  • Page 57: Cleaning 4001

    Jan 10/09 SENNHEISER ELECTRONIC GMBH & CO. KG Cleaning COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES CLEANING General WARNING: USE ALL CLEANING AGENTS IN A WELL VENTILATED AREA. DO NOT BREATHE THE FUMES. DO NOT LET THE AGENTS TOUCH YOUR SKIN. DO NOT USE FLUIDS THAT CAN RELEASE FLAMMABLE FUMES NEAR AN OPEN FLAME.
  • Page 58 SENNHEISER ELECTRONIC GMBH & CO. KG Apr 13/06 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 4002 Jan 10/09...

  • Page 59: Inspection / Check

    INSPECTION / CHECK General NOTE: The procedure that follows is applicable to all variants of the Headset HMEC 26-Series. Visual inspection of the Headset Visual inspection of the headset (1) Do a visual check of the headset for structural damages and damaged cables.
  • Page 60 SENNHEISER ELECTRONIC GMBH & CO. KG Apr 13/06 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 5002 Feb 10/10...

  • Page 61: Repair 6001

    WITH MOISTURE OR CONDENSATION. EXAMPLES ARE THE MICROPHONE AND OTHER RECORDING EQUIPMENT. NOTE: THIS PROCEDURE IS APPLICABLE TO ALL VARIANTS OF THE HEADSET HMEC 26-SERIES. NOTE: REFER TO DISASSEMBLY AND TO THE IPL WHEN YOU REPLACE PARTS. Repair of the Headset Soldering of loose leads (1) Use a soldering iron and RoHS compliant lead-free tin-solder to solder loose leads.
  • Page 62 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 6002 Jan 10/09...

  • Page 63: Assembly 7001

    Feb 10/10 SENNHEISER ELECTRONIC GMBH & CO. KG Assembly COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES ASSEMBLY General WARNING: OBEY ALL SAFETY INSTRUCTIONS WHEN YOU USE SOLDERING IRONS. FLUX FUMES CAN IRRITATE YOUR EYES. DO NOT BREATHE THE FUMES. USE EXTRACTION DEVICES.
  • Page 64 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES (a) Put the end piece of the headband (010) into the end piece holder (see figure below). (b) Completely move down the end piece of the headband (010) to the round/oval end piece stopper.
  • Page 65 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES (2) Assembly of the yoke (020) (a) Completely move down the end piece of the headband (010) to the round/oval end piece stopper. CAUTION: DO NOT INSTALL THE HEADBAND CABLE WITH A SHARPEN SCREWDRIVER. YOU CAN DAMAGE THE HEADBAND CABLE.
  • Page 66 NOTE: REF. FIG. 2001. FOR HMEC 26, REFER TO IPL FIG. 1 AND FOR HMEC 26-T, REFER TO IPL FIG. 3. (1) Open the headband holder and install the acoustic units (050, 060). (2) Insert the headband cable into the strain-relief at the PCB.
  • Page 67 PHONE ARM SUPPORT (REFER TO FIG. 7001, FIG. 7002). NOTE: FOR HMEC 26, REFER TO IPL FIG. 1 AND FOR HMEC 26-T, REFER TO IPL FIG. 3. FOR THE TWO HEADSETS, REFER TO FIG. 2001. (1) Attach the acoustic units (050, 060) to the headband (010).
  • Page 68 NOTE: THIS PROCEDURE IS ONLY APPLICABLE TO THE MICROPHONE SIDE CAP. NOTE: FOR HMEC 26, REFER TO IPL FIG. 1 AND IPL FIG. 2. FOR HMEC 26-T, REFER TO IPL FIG. 3 AND IPL FIG. 4. NOTE: REPLACEMENT OF THE MICROPHONE ARM / REPLACEMENT OF THE CAP WITH MICROPHONE ARM SUPPORT THE MICROPHONE ARM AND THE CAP WITH MICROPHONE ARM SUPPORT HAS BEEN REDESIGNED: ALWAYS REPLACE THE CORRECT MICROPHONE ARM (REFER TO IPL).
  • Page 69 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Procedure for headsets from serial no. 00200100. NOTE: ALWAYS INSTALL THE CORRECT MICROPHONE ARM (80) WITH THE SHOWN MICROPHONE ARM FIXING OF THE CAP (070). (1) There are two notches on the inner side of the microphone arm fixing First put this two notches in the correct position on the cap (070) (2) Hook the microphone arm (080) into the cap (070) from the bottom.
  • Page 70 THIS PROCEDURE IS NOT APPLICABLE TO HEADSETS WITHOUT A CABLE. NOTE: FOR HMEC 26, REFER TO IPL FIG. 1 AND FOR HMEC 26-T, REFER TO IPL FIG. 3. FOR THE HEADSETS, REFER TO IPL FIG. 17. (1) Plug the Cable (110) into the system connector of the headphone cap on the microphone side (070).
  • Page 71 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Assembly of Cables -CP, -KP and -NP NOTE: THIS PROCEDURE IS ONLY APPLICABLE TO CABLES -CP, -KP AND -NP. NOTE: REFER TO IPL FIG. 5 TO IPL FIG. 7. FOR THE WIRING, REFER TO FIG. 2002 OR FIG. 2003.
  • Page 72 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES (6) Install the knobs to the PCB: - Fig. 8, Fig. 10 to Fig. 13: 070 and 080 - Fig. 9: 080 and 090 - Fig. 14 to Fig. 16: 060 (7) Put the PCB in the correct position in the cover (020).

  • Page 73: Fits And Clearances

    Jan 10/09 SENNHEISER ELECTRONIC GMBH & CO. KG Fits and COMPONENT MAINTENANCE MANUAL Clearances HMEC 26-SERIES FITS AND CLEARANCES Not applicable 23-41-48 Page 8001 Jan 10/09...
  • Page 74 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 8002 Jan 10/09...
  • Page 75 Jan 10/09 SENNHEISER ELECTRONIC GMBH & CO. KG Special COMPONENT MAINTENANCE MANUAL Tools, Fix- HMEC 26-SERIES tures, SPECIAL TOOLS, FIXTURES, EQUIPMENT AND CONSUMABLES Equip- ment and Test tools and equipment GTE NO. DESCRIPTION SPECIFICATION/TYPE SOURCE Power supply U: 0-30V DC adjustable Commercial I: ≥500 mA...
  • Page 76 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 9002 Jan 10/09...
  • Page 77 Feb 10/10I SENNHEISER ELECTRONIC GMBH & CO. KG llustrated COMPONENT MAINTENANCE MANUAL Parts List HMEC 26-SERIES ILLUSTRATED PARTS LIST 23-41-48 Page 10001 Mar 13/13...
  • Page 78 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES General The Illustrated Parts List (IPL) illustrates and lists all assemblies and component parts for the Headset. Material Arrangement This IPL contains the following sections: Introduction The introduction contains all explanatory information for the individual sections as is necessary for use of this IPL.
  • Page 79 HMEC 26-SERIES (c) Vendor Codes Parts manufactured by companies other than Sennheiser are identified by a vendor code that follows the part nomenclature. Vendor codes comply with the current issues of the Federal Supply Codes for Manufacturers Cataloging Handbooks H4-1 and H4-3, and are preceded by a „V“.
  • Page 80 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 10004 Mar 13/13...

  • Page 81: Detailed Parts List

    Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES DETAILED PARTS LIST 23-41-48 Page 10005 Mar 13/13...
  • Page 82 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Ref. IPL Fig. 18 Non microphone side PCB DRAWN AS EXAMPLE For microphone arm support details refer to IPL Fig. 2, 7001, 7002 Microphone side Ref. IPL Fig. 17...
  • Page 83 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 502397 HEADSET HMEC 26, WITHOUT CABLE -001A 502403 HEADSET HMEC 26-KP -001B 502402 HEADSET HMEC 26-CP...
  • Page 84 SENNHEISER ELECTRONIC GMBH & CO. KG Feb 10/10 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -070 540366 . CAP WITH MICROPHONE ARM SUPPORT, CABLE AND CLIP, MICROPHONE SIDE (FROM SERIAL 00200100) 080 550245 .
  • Page 85 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES down Figure 2 HMEC 26 headphone cap - microphone cap side FIG. ITEM PART NUMBER NOMENCLATURE UNITS CODE ASSY -001 540366 CAP WITH MICROPHONE ARM SUPPORT MICROPHONE SIDE...
  • Page 86 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Ref. IPL Fig. 18 Non microphone side PCB DRAWN AS EXAMPLE For microphone arm support det refer to IPL Fig. 4, 7001, 7002 Microphone side Ref. IPL Fig. 17...
  • Page 87 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 502404 HEADSET HMEC 26-T, WITHOUT CABLE 010 552768 . HEADBAND WITH HEADBAND PADDINGS (SEE FIG. 18 FOR DET.) 020 531421 .
  • Page 88 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -080 529758 . MICROPHONE ARM STANDARD, COMPLETE, 80 MV/PA (UP TO SERIAL NO. 00200100) 090 522636 .
  • Page 89 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 10013 Mar 13/13...
  • Page 90 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES down down From serial no. 00200100 Up to serial no. 00200100 Figure 4 HMEC 26-T headphone cap - microphone cap side FIG. ITEM PART NUMBER NOMENCLATURE UNITS CODE ASSY -001 531424 CAP WITH MICROPHONE ARM SUPPORT...
  • Page 91 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PCB DRAWN AS EXAMPLE Figure 5 Cable -KP 23-41-48 Page 10015 Mar 13/13...
  • Page 92 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 500842 CABLE -KP RF NHA 010 515048 . HOUSING 020 514196 . COVER 030 549394 .
  • Page 93 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PCB DRAWN AS EXAMPLE Figure 6 Cable -NP 23-41-48 Page 10017 Mar 13/13...
  • Page 94 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 500855 CABLE -NP RF NHA 010 515048 . HOUSING 020 514196 . COVER 030 549394 .
  • Page 95 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PCB DRAWN AS EXAMPLE Figure 7 Cable -CP 23-41-48 Page 10019 Mar 13/13...
  • Page 96 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 500852 CABLE -CP RF NHA 010 515048 . HOUSING 020 514196 . COVER 030 549394 .
  • Page 97 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PCB DRAWN AS EXAMPLE Figure 8 Cable -V-RP 23-41-48 Page 10021 Mar 13/13...
  • Page 98 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 500853 CABLE -V-RP RF NHA 010 515066 . HOUSING 125X34X0.08 020 515455 . COVER 030 514162 .
  • Page 99 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PCB DRAWN AS EXAMPLE Figure 9 Cable -V-CP 23-41-48 Page 10023 Mar 13/13...
  • Page 100 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 500846 CABLE -V-CP RF NHA 010 515066 . HOUSING 125X34X0.08 020 515032 . COVER 030 514162 .
  • Page 101 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PCB DRAWN AS EXAMPLE Figure 10 Cable -V-KP 23-41-48 Page 10025 Mar 13/13...
  • Page 102 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 500848 CABLE -V-KP RF NHA 010 515066 . HOUSING 125X34X0.08 020 515455 . COVER 030 514162 .
  • Page 103 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PCB DRAWN AS EXAMPLE Figure 11 Cable -V-KX 23-41-48 Page 10027 Mar 13/13...
  • Page 104 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 502437 CABLE -V-KX RF NHA 010 515066 . HOUSING 125X34X0.08 020 515455 . COVER 030 514162 .
  • Page 105 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES insulating foil insulating foil PCB DRAWN AS EXAMPLE Figure 12 Cable -BV-K, -BV-KP 23-41-48 Page 10029 Mar 13/13...
  • Page 106 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001A 500839 CABLE -BV-K RF NHA -001B 504030 CABLE -BV-KP RF NHA 010 600650 . BATTERY HOUSING 020 515455 .
  • Page 107 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES insulating foil insulating foil PCB DRAWN AS EXAMPLE Figure 13 Cable -BV-CP 23-41-48 Page 10031 Mar 13/13...
  • Page 108 SENNHEISER ELECTRONIC GMBH & CO. KG Feb 10/10 COMPONENT MAINTENANCE MANUAL Jan 10/09 HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 500838 CABLE -BV-CP RF NHA 010 600650 . BATTERY HOUSING 020 515032 . COVER 030 549394 .
  • Page 109 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES insulating foil insulating foil PCB DRAWN AS EXAMPLE Figure 14 Cable -B-K 23-41-48 Page 10033 Mar 13/13...
  • Page 110 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 502183 CABLE -B-K RF NHA 010 600650 . BATTERY HOUSING 020 515033 . COVER 030 549394 .
  • Page 111 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES insulating foil insulating foil PCB DRAWN AS EXAMPLE Figure 15 Cable -B-CP 23-41-48 Page 10035 Mar 13/13...
  • Page 112 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 500837 CABLE -B-CP RF NHA 010 600650 . BATTERY HOUSING 020 515033 . COVER 030 549394 .
  • Page 113 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES insulating foil insulating foil PCB DRAWN AS EXAMPLE Figure 16 Cable -B-KP 23-41-48 Page 10037 Mar 13/13...
  • Page 114 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES FIG. ITEM PART NUMBER AIRLINE NOMENCLATURE UNITS PART NO. CODE ASSY -001 504047 CABLE -B-KP RF NHA 010 600650 . BATTERY HOUSING 020 515033 . COVER 030 549394 .
  • Page 115 Oct 30/08 SENNHEISER ELECTRONIC GMBH & CO. KG COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 17 System connector cable FIG. ITEM PART NUMBER NOMENCLATURE UNITS CODE ASSY -001 CABLE COPPER 1.54M RF NHA 010 079939 CYLINDER HEAD SCREW - ITEM NOT ILLUSTRATED...
  • Page 116 SENNHEISER ELECTRONIC GMBH & CO. KG Oct 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES Figure 18 Spare parts for the split headband FIG. ITEM PART NUMBER NOMENCLATURE UNITS CODE ASSY -1 552768 SPLIT HEADBAND RF NHA 010 545258 END PIECE OF HEADBAND RIGHT AND LEFT - HMS 26/46...
  • Page 117 Jan 10/09 SENNHEISER ELECTRONIC GMBH & CO. KG Storage COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES STORAGE General CAUTION: DO NOT STORE THE COMPONENT IN POLYURETHANE BAGS FOR LONGER THAN SOME MONTHS. MAKE SURE THAT THERE IS A DESICCANT IN THE BAG BEFORE YOU STORE THE COMPONENT IN IT.
  • Page 118 SENNHEISER ELECTRONIC GMBH & CO. KG Mar 30/08 COMPONENT MAINTENANCE MANUAL HMEC 26-SERIES PAGE INTENTIONALLY LEFT BLANK 23-41-48 Page 15002 Jan 10/09...

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Hmec 26-tHmec 26-cpHmec 26-v-cpHmec 26-kpHmec 26-v-kpHmec 26-bv-k ... Show all

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