User manual

Clear-Com Intercom Systems MR-202/MR-204 Two- and Four-Channel Headset Stations
© Clear-Com Intercom Systems 2000
13
Rev. B
15.0K OHM 1/10 SMD 1% 411502 R12
20.0K OHM 1/10 SMD 1% 411514 R20 R25 R28
100K OHM 1/10 SMD 1% 411581 R23
121K OHM 1/10 SMD 1% 411589 R27
221K OHM 1/10 SMD 1% 411614 R6
475K OHM 1/10 SMD 1% 411646 R24
1.0M OHM 1/10 SMD 5% 411677 R37
10K OHM X4 SMD DIP Isolated1% 416016 R7
47K OHM X4 SMD DIP Isolated1% 416018 R2 R3
100K OHM X4 SMD DIP Isolated1% 416019 R1
470K OHM X4 SMD DIP Isolated1% 416021 R4
Pot 5K TRIMPOT 470063 R19
Pot 5K POT 470081 R30
Diodes and Transistors
Device Description Part # Designator
LED LOW CURRENT GREEN T1 3/4 LED 390021 D6
LED LED, YELLOW, ULTRA BRIGHT T1 3/4 390057 D12
LED LED SMD 0805 RED SMD 391001 D10 D11
IC 7805L POS 5V REGULATOR TO-92 PKG 480088 IC5
Diode BAV70 DUAL DIODE COM CATH... SMD 481019 D4 D13
IC 833 DUAL OPAMP... SMD 481023 IC1 IC2 IC3
Transistor 2222A NPN 40V 600MA... SMD 481026 Q4
Transistor 2907A PNP 60V 600MA... SMD 481027 Q3
Diode BAV99 DUAL DIODE... SMD 481033 D1 D3 D8 D9
Transistor MPSA14 DNPN 30V 300MA... SMD 481038 Q6
Transistor J175 P-CHANNEL JFET... SMD 481056 Q1 Q2
Diode 5.1V 5% ZENER 1/4W... SMD 481061 D5 D7
Transistor MPSA64 DPNP 30V 500MA SMD 481075 Q5
IC MICROPROCESSOR, KB/MR SERIES 710508 IC4
Miscellaneous
Device Description Part # Designator
Connector 5 POS, SCREW TERM. PLUG-IN 5MM 210085 P4
Connector 7 POS, SCREW TERM. PLUG-IN 5MM 210144 P4
XLR 4 PIN M FLUSH MOUNT W/SOLDER CUPS 210286
Switch SB-412 SWITCH KNOB GREY WITH 510030 240024 S1
Pot TRIMPOT SHAFT GREY 240057 R19
Pot KNOB GREY INSERT 240077 R30
Switch ROUND MINIATURE BUTTON BLACK 240081 S3
Switch RECT. MINIATURE BUTTON BLACK 240082 S2
Lens LENS, YELLOW, ROUND FOR T1 3/4 240099 D12
Switch SB-412 SCH#CLA-PV-1X6-MBB-AG-C 510030 S1
Switch DPDT P.B. MINIATURE W/LONG PLUNGER 510107 S3 S2
Wire 4 CONNDUCTOR FLAT CABLE 770017 W1