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LMS325
VOLUME
RTS
User Manual
LMS-325
Line Monitor Speaker
9350-7490-000 Rev D 11/2006
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PROPRIETARY NOTICE SHIPPING TO THE MANUFACTURER The product information and design disclosed herein were originated by All shipments of product should be made via UPS Ground, prepaid (you and are the property of Telex Communications, Inc. Telex reserves all may request from Factory Service a different shipment method). Any ship- patent, proprietary design, manufacturing, reproduction, use and sales ment upgrades will be paid by the customer. The equipment should be rights thereto, and to any a
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CHAPTER 1 Description and Specifications ....................................................................................1 General Description ....................................................................................................2 Features ....................................................................................................................... 2 Controls ..............................................................................................................
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CHAPTER 1 Description and Specifications What you will find in this chapter: •General Description � Features � Controls � General Specifications � Connector Pin Configurations � Speaker Amplifier Specifications 1
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Description and Specifications General Description The LMS-325 is a modular amplified speaker that can be used to maonitor one or two intercom or program channels. The LMS-325 is a five-watt. eight-ohm modular amplified speaker for use with RTS rack or console-mounted intercom systems. Features Features of the LMS-325 include: � Two monaural phone jacks for two separate audio inputs. � One 3-pin XLR connector for RTS intercom channels one and two. � Control to adjust volume of speaker output.
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Connector Pin Configurations Environmental Requirements Storage: -20°C to 80°C; 0% to 95% humidity, non-condensing. Operating: 0°C to 50°C; 0% to 95% humidity, non-condensing. Dimensions 1.72” (44mm)H x 8.2”(208mm)W x 8” (203”)D Weight 2 lbs. 12 oz. (1.25kg) Connector Pin Configurations Speaker Inputs Type: RCA Phone Jacks Tip: Audio Sleeve: Common Type: XLR-3F Pin 1 Common Pin 2 RTS Channel 1 audio Pin 3 RTS Channel 2 audio External Power Type: 2.0 mm jack Internal pin: positive (+) External
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Description and Specifications 4
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CHAPTER 2 Operation What you will find in this chapter: � External Connections & Controls � Mounting Configurations 5
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Operation External Connections & Controls NOTE: The numbers refer to the callouts in Figure 1. 1. Volume Control 4. Audio Input Jacks Use this control to simultaneously adjust the speaker These 1/4” monaural phone jacks can be used to level for both speaker input lines. connect audio inputs from some other line-level program sources (an auxiliary output from a radio or 2. 12-15 VDC Input Jack tap player for example). ® The LMS-325 is powered from a Telex Wall Pack 5. XLR Line Input Connecto
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Mounting Configurations Mounting Configurations Optional mounting configurations for modular RTS™ intercom stations are shown in Figure 2 and include rack-mount, con- sole-mount, desktop, and portable stations. Figure 2. Optional Mounting Configurations 7
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Operation 8
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CHAPTER 3 Replacement Parts What you will find in this chapter: � Where to obtain parts � Mechanical Parts � Electrical Parts 9
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Replacement Parts Where to Obtain Parts Parts may be obtained directly from Telex at: Telex/RTS Systems 12000 Portland Ave South Burnsville, MN 55337 800-392-3497 Fax 800-323-0498 Mechanical Parts TABLE 3. Mechanical Parts Final Assembly (Refer to page 19 for Item No. locations Item No. Description Part No. 1 Speaker Grill Assembly, LMS-325 9020-7490-000 2 Foam Strip, 1/4” Wide, Grey, 6.0” LG. 4501-0076-02 3 *6* Case Extrusion 9060-6260-00 4 P.C. Board Assembly, LMS-325 9030-7490-000 5 Gasket, R
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Mechanical Parts TABLE 4. Speaker Grill Assembly Speaker Grill Assembly (Refer to Pages 20-21 Item No. locations) Item No. Description Part No. 8 Washer, Lock 50049-003 9 Speaker 590530-000 10 Screw 51845-056 11 Conn. Housing, 2-pin 52264-002 12 Terminal, Crimp Style, Snap In 54460-001 13 Wire, 24 AWG, Black 51204-010 14 Wire, 24 AWG, White 51204-009 15 Wire, 24 AWG, Blue 51204-006 16 Potentiometer, 10K Ohm 54131-006 17 Bracket 9110-7490-000 18 Knob, Grey 2703-0034-00 19 Screw 1008602000 20 Moun
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Replacement Parts TABLE 5. Electrical Parts PC Board Assembly Refer to Page 23 for Reference No. Qty Ref. No. Description Part No. R28 R29 R30 R31 8 Resistor, CF, 10 k Ω, 5%, 1/4 W 52154-257 R34 R35 R36 R37 1 R7 Resistor, CF, 1.8 k Ω, 5%, 1/4 W 52154-275 1 R27 Resistor, CF, 2.7 Ω, 5%, 1/4 W 52154-343 R12 2 Resistor, CF, 0 Ω, 5%, 1/4 W 52154-971 R17 C17 2 Capacitor, Cer. Disc. 10 pF 500 V. 10% 52157-502 C19 1 C6 Capacitor, CM, 0.33 μF, 50V 52676-512 C5 2 Capacitor, CM, 1 μF, 50V 52676-517 C15 C1
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Mechanical Parts TABLE 5. Electrical Parts PC Board Assembly Refer to Page 23 for Reference No. Qty Ref. No. Description Part No. C22 2 Capacitor, EL, 0.1 μF, 25V 517004-000 C23 1 R13 Potentiometer, 10k Ω, 30%, 0.08W 14060044-00 1 R18 Potentiometer, 10k Ω, 20%, 0.1W 14090060-00 U2 IC, Low Noise Dual Op-Amp, 2 1603083300 LM833N U3 TP1 TP2 TP3 TP4 TP5 TP6 Terminal with Insert. #ME151-101- 13 TP7 20170014-00 1000 TP8 TP9 TP10 TP11 TP12 TP13 Connector, RA Dual RCA-Type Jack, 1J1 20180090-00 Yellow
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Replacement Parts 14
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CHAPTER 4 Drawings In this chapter: � 9010-7490-000 LMS-325 Final Assembly Drawing � 9020-7490-000 Speaker Grill Assembly � 9027-7490-000 LMS-325 Schematic Drawing � 9030-7490-000 Speaker Unit Assembly Drawing 15
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Drawings 16
