SENNHEISER ELECTRONIC GMBH & CO. KG
COMPONENT MAINTENANCE MANUAL
HMEC 26-SERIES
Page 6001
Jan 10/09
23-41-48
REPAIR
1. 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.
CAUTION:
FOR ALL SOLDERING PROCEDURES, ONLY USE ROHS COMPLIANT LEAD-FREE TIN-SOLDER TO
PREVENT EMBRITTLING OF SOLDER JOINTS.
MAKE SURE THAT THE SOLDERING TEMPERATURE OF THE SOLDERING IRON OBEYS THE SPECIFIED
MELTING RANGE.
ALSO MAKE SURE THAT THE SOLDERING IRON IS POTENTIAL-FREE (PROTECTIVE GROUNDING OR
LOW-TENSION SUPPLY).
PROTECTIVE VARNISHING AFTER SOLDERING IS ONLY NECESSARY FOR UNITS THAT HAVE CONTACT
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.
2. Repair of the Headset
A. Soldering of loose leads
(1) Use a soldering iron and RoHS compliant lead-free tin-solder to solder loose leads.
(2) Apply protective varnishing, if necessary.
Jan 10/09
Repair
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