Sennheiser Skm 100 G2 Service Manual

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• Pilot tone squelch for interference-free operation • Mute function • HDX compander system • Charging contacts integrated in transmitter (does not apply to SK 100 G2) • Backlighting of display with one keystroke • Battery status display • Robust metal housing •. • The following instructions for overhaul and testing must be followed. In case of unusual problems please contact your Sennheiser distributor. For safety reasons unauthorised modifications and changes are not permitted.

For an animated instruction manual, visit the respective product pages at www.sennheiser.com. • Refer all servicing to qualified service personnel. This instruction manual, visit the SKM 100 G3 product page on our website at www.sennheiser.com. • Refer all servicing to qualified service personnel.

SK 100 G2, SK 300 G2, SK 500 G2. • Mainboard, printed circuit board, solder side.26 Mainboard, printed circuit board, component side.

26 RF board, printed circuit board, component side.27 RF board, printed circuit board, solder side.27 SK 100 G2, SK 300 G2, SK 500 G2 02/2005 3/27. • Lock mode icon (lock mode is º Battery compartment activated) ¾ Battery compartment cover º 4-step battery status display µ Unlocking button ¸ ON/OFF button ¹ LC display MUTE switch SK 100 G2, SK 300 G2, SK 500 G2 4/. • Dimensions in mm_____________________ 82 x 63 x 23 Weight incl. Batteries __________________ approx. 200g Compliant with Europe _________________________CE 0682 USA ___________________________FCC ID: DMOB2EUVL Canada ________________________IC: 2099A-G2SK Japan _________________________R2; R2; R2; R2 SK 100 G2, SK 300 G2, SK 500 G2 02/2005 5/27. • Total harmonic distortion (at nominal deviation, 1kHz) ____________ ≤0.9% Signal-to-noise ratio (referring to peak deviation) ____________ 110dB(A) via HDX system Max. Input voltage (peak deviation) Microphone_____________________ 1.8Veff (unw) Line __________________________ 2.4Veff SK 100 G2, SK 300 G2, SK 500 G2 6/.

• 834-870 Number of frequency banks with preset channels (presets) SK 100 G2 ______________________ 8 banks with 4 channels each SK 300 G2 ______________________ 8 banks with 8 channels each SK 500 G2 ______________________ 8 banks with max. 20 channels Freely adjustable frequency bank. Lyrics • Exploded view (SK 100 G2) (SK 300 G2, SK 500 G2) (SK 300 G2, SK 500 G2) (SK 100 G2) SK 100 G2, SK 300 G2, SK 500 G2 8/.

• Axle Antenna PCB RF Battery case PCB mainboard LC display complet Flat cable, 20 pin Slide button, black Rocker switch, black Knob Shielding cup Label Lens screw Slottet nut SK 100 G2, SK 300 G2, SK 500 G2 02/2005 9/27. • - If you feed in the MIC signal you have to ground the LINE connector of the phone jack - If you feed in the LINE signal you have to ground the MIC connector of the phone jack. SK 100 G2, SK 300 G2, SK 500 G2 10/27. • Special service tools Service set for service software ew G2 (Part-No. 094739) Infrared adaptor Verwendung im Kapitel: “Reading out / Changing of device data via infrared adaptor” on page 15 SK 100 G2, SK 300 G2, SK 500 G2 02/2005 11/27. • LED LOW BAT threshold when has to flash powered by battery 2.6.4 Switch-off See 2.6.2 See 2.2 See 2.5 +2.0V LED LOW BAT threshold when has to flash powered by accupack SK 100 G2, SK 300 G2, SK 500 G2 12/. • See 3.4.1 60dB(A) – to peak deviation Mod: OFF MUTE= „ON“ THD at nominal See 3.4 AF level meter See 3.4.1 0.08% to 1.2% – deviation THD measuring Mod: ON SK 100 G2, SK 300 G2, SK 500 G2 02/2005 13/27.

• See 3.5 AF display = „0“ nominal deviation Mod: ON – AF display at peak See 3.6 AF display = full deflection; deviation Mod: ON yellow 'PEAK' LED is on. SK 100 G2, SK 300 G2, SK 500 G2 14/. • Reading out / Changing of device data via infrared adaptor 4.5.1 Overview You may read out and change data via the infrared adaptor. The Sennheiser service software supports the following tasks you may want to perform: • Reading out the current software version and, if necessary, carrying out of a software update (file '*.s19'). • You have successfully written the new data to the device. These new data now correspond to the new factory settings for you device.