233TS-2000/XMC-52DM (MULTI-FUNCTION MICROPHONE WITH DTMF)External ViewSpecificationsType .......................................................... Electret capacitorPower requirement ...................................... 8.0V DC ± 10%Current drain .................................................... 35mA or lessDimensions (WxHxD) ................................ 65 x 90 x 30 mm2-9/16 x 3-17/32 x 1-13/16 inWeight ................................................. Approx. 180g / 6.3ozSensitivity ................. –70dB± 3dB (at 1kHz) (0dB = 1V/μbar)Parts ListRef. No. New Parts No. DescriptionpartsA02-1982-08 Case (Front)A02-1983-08 Case (Rear)E30-3243-08 Microphone cord assy (Metal)K29-5101-08 Knob (PTT)K29-5102-08 Knob (Up, Down)K29-5103-08 Key top (20 key)K29-5104-08 Knob (Lock)SW3,4 S40-1117-05 Tact switch (Up, Down)SW2 S62-0441-08 Slide switch (Lock)SW1 S70-0465-08 Tact switch (PTT)T91-0570-08 Microphone elementIC1 LR40872 ICQ1-3 2SC1623 TransistorConnector End ViewMetal plug (8P)18MICGND7GND (MIC)6NC58V DC2 STBY (PTT)3 DWN4 UPItem Condition Test equipment / Measurement Adjustment Specifications / RemarksDTMF [3], [6] key at VR1 2.4mV± 0.01mVoutput level same time push123456780.01μF5.6kΩB (8V)GND+–8P metalplugAF VTVM–+Adjustment