IFB-325 Portable User Station Talent Electronics User Manual
Contents
1. Chapter 3 Replacement Paris aa ana MEME MM ELM INL MI NN ana Veera ba Pa eat SA ER TA an ede le Hape a ee na Chapter 4 DAC M NA A IS CHAPTER 1 Introduction and Description Description and Specifications General the IFB 325 is a portable user station for use with RTS 2 wire intercom systems The IFB 325 is a listen only IFB belt pack that can be used to listen to only one intercom channel Features Features of the IFB 325 include e Powered externally via the intercom system power supply on channel one e Power ON indicator e Headset earset jack set for 1504 operation e Internal jumper selection of intercom channel one or channel two default to channel two Connections and Controls The IFB 325 has the following connections and controls e Intercom program volume control e Headset connector that accepts 1 4 monaural phone plug e Channel connector that accepts an XLR type 3 pin connector for intercom line an power input Introduction and Description Specifications General Channel Supplied Power Requirements 32 VDC nominal standard RTS line 50 to 80 mA 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 3 25 82 6mm H x 3 5 88 mm W x 1 8 45 7mm D Weight 1 0 pounds 0 45kg Interface Reguirements Earset 150 to 60082 headphones RTS Intercom Channel Input Level2. IFB 325 Portable User Station Talent Electronics User Manual 9350 7488 000 Rev D 12 2005 PROPRIETARY NOTICE The RTS product information and design disclosed herein were originated by and are the property of Telex Communications Inc Telex reserves all patent propri etary design manufacturing reproduction use and sales rights thereto and to any article disclosed therein except to the extent rights are expressly granted to oth ers COPYRIGHT NOTICE Copyright 2005 by Telex Communications Inc All rights reserved Reproduction in whole or in part without prior written permission from Telex is prohibited UNPACKING AND INSPECTION Immediately upon receipt of the equipment inspect the shipping container and the contents carefully for any discrepancies or damage Should there be any notify the freight company and the dealer at once CUSTOMER SUPPORT Technical questions should be directed to Customer Service Department RTS Telex Communication Inc 12000 Portland Avenue South Burnsville MN 55337 U S A Telephone 800 392 3497 Fax 800 323 0498 Factory Service 800 553 5992 Return Shipping Instructions Customer Service Department Telex Communications Inc Lincoln Nebraska Telephone 402 467 5321 Fax 402 467 3279 Factory Service 800 553 5992 Please include a note in the box which supplies the company name address phone number and a person to contact regarding the repair the ty
3. 16030833 SMI 16030146 SMI 54680 412 Drawing Number 9010 7488 000 9020 7477 001 9030 7477 001 9027 7477 001 CHAPTER 4 Diagrams Title Figure X Final Assembiy IFB 325 Figure X Connector Plate Assembly IFB 325 Figure X PC Board Assembly IFB 325 Figure X Schematic IFB 325 FIGURE 3 Final Assembly IFB 325 9010 7488 000 Rev F FIGURE 4 Connector Plate Assembly IFB 325 9020 7477 001 Rev E 11 Diagrams 1 d Sta zn 813 FIGURE 5 PC Board Assembly IFB 325 9030 7477 001 Rev M R20 i 7 90407477 000 R19 COMP SILK REYE 12 NOTES 1 ALL RESISTORS TO BE OHUS I BR SX UNLESS OTHERNISE SPECIFIED 2 ALL CAPACITORS TD SF uF UNLESS DIHERWISE SPECIFIED 5 LAST REF DES USED C29 DA DSI J3 PER 02 R37 TPI UN MM 9 M M e lt m 4 25 24 tb a uxscerrcars ESOO pera Le ps wore scs ses an am puce o am tovi eza z see em sesal an o eses CCC fam GB MO cea 845 TN 60074 DE PAN AB SHES 2 3 c M9 si Tan exe v him D cir 2205 rS FE SK Ri e RSS e 12 R IESE rx IX A E 2K Ik d am 5 Spi x 2 Te Is Te ls N re Low ais c 2 ZAPISAN za zu x i pE xo tis Je i was je res Ka HIGH C ZRF ISAN BV OF ISIN 2 va se r i eg i 5 amp gt gt 4 x ons RIMA UN st 4 3
4. Figure X for Item No location Description Loctite Superbonder Label Serial Not Used Not Used Screw Locking Agent Part No BE 753 3101001700 59857 000 Connector Plate Assembly Refer to figure X for Item No locations Description Not Used Jack Phono 1 4 Connector XLR 3F Connector 4 pin Contact Connector Not Used Connector Plate Screw Locking Agent Part No 2013001200 40055 10 59958 004 59958 200 90807374 007 59857 000 Replacement Parts Ref No CAG C3 C4 C5 C6 C7 C8 C9 C10 C11 ER C13 C14 C15 C17 C18 C19 C20 C21 C22 C24 C25 D1 D4 DS1 J1 J2 J3 PEM1 PEM2 Q1 Q2 R1 R2 R3 R6 R7 R8 R9 R10 R11 Circuit Board Assembly Refer to Figure X Description Support Bracket Capacitor CM SM 0 22UF 50V Capacitor CM SM 0 33UF 50V Capacitor CM SM 0 1uE 50V Capacitor EL 2200UF 16V Capacitor EL 100UF 25V Capacitor CM SM 0 01uF 50V Capacitor EL 474 F 25V Capacitor CM SM 0 01UF 50V Capacitor EL SM 1uF 50V Not Used Capacitor EL SM 0 1uF 50V Capacitor CM SM 0 14 E 50V Not Used Capacitor EL 22004 F 25 V Capacitor CM SM 220 pF 50V Capacitor EL SM 4 74 E 25V Not Used Capacitor CM SM 0 14 F 50V Not Used Capacitor EL 22004 F 16V Diode SM Switching 914 4148 LED Rectangular Green Connector St Locking 0 059 M 4 Connector St Header 0 100 M 5 Nut Self Clinching 4 40 Nut Self Cli
5. LE s z z RIS ob g STA gt NOT STUFFED FOR 002 Re RI V ds Lap aws ON x am Ma NI uem A A TO a ae VIN E 220k 50W 1 eee set 8 g z e E 7K IX wi e TE V nev IN ny LON 18 V PHANTOM PONER SUPPLY DE Je T P Rs 2 al i z yo Boe sa FES ERES 10V gt E i Sei 873 iv T A si ERD PHANTOM gt re PI NOT STUFFED FOR 000 PORE SUPPLY AN e 1 i a RAMO TEST LOOP Se jSz A NOT STUFFED FOR 098 PC BOARD MOUNTING HOLES EE TELEX CAD GENERATED DRAWING mmm moras P nnne ne FILEHMdc 14 a ER a aaa M gt dt me A er D all t ms 3 4 i 2 5 fads a i i i a o FS aa 882 NOT STUFFED FOR 20 Laud iy AN st i E PRM ose g GROUMD TEST LOOP JA FC BIMO WOUNTIND HOLES AAA ALA AO IATA NA LET TT me LET EIE Ler wij a jm mmn jon rper mun s KKG SEE ELO Boke m E wmm D PE AMD C20 ai DG PAN s tis UE EJ najti NOT STUFFED FOR OBI lt ik ALT tz EN pe d tis E ek SOY Rz ca i 7 Sk t uz ssa 7K 12 V izv 4 v Lom Cia D ws ig T RS sa M8 dl v i e y z 29 s TE 0 i a It ik T NOT STUFFED FOR BAI CAD GENERATED DRAWING sse seram FILEKARE sse eh lE x 15
6. 2 Vp p 0 dBu nominal Input Impedance 2009 5 Noise Contribution less than 60 dB on the line Headphone Amplifier Voltage Gain 27 3dB from the line Maximum Output 165mW into 1500 Frequency Response 250 Hz to 8 kHz 1 4dB Connector Pin Configurations Headset Connector Type 1 4 Monaural Plug Sleeve Headset audio low Tip Headset audio high Intercom Channel Connectors Type XLR 3F Pin 1 Common Pin 2 Intercom Channel 1 audio and 32 VDC input Pin 3 Intercom Channel 2 audio CHAPTER 2 Operation External Connections and Controls HEADSET IFB 325 FIGURE 1 IFB 325 Connections and Controls NOTE The numbers refer to the callouts in Figure 1 1 Volume Control Use this control to adjust the headset earset listen level 2 ON indicator This LED glows green when the belt pack is connected to an intercom channel that is functioning 3 Headset Connector This connector accepts a wide response headset earset such as the RTS Model 2233 or Model 2234 with a 1 4 monaural phone plug 4 Hole Plug This hole is for future use 5 Intercom Channel Connectors The IFB 325 intercom channel is connected via a 3 pin female connector The IFB 325 is powered from the intercom system power supply and will turn ON with the intercom system Operation Internal Jumper The channel termination is set for operation on intercom channel two which is compatible with other RTS equip ment If IFB opera
7. nching 4 40 Transistor SM SI NPN MMBTA13 Resistor SM 22 1kQ 1 1 8W Not Used Resistor SM 10k 2 1 1 8W Resistor SM 10kQ 5 1 80 Resistor SM 10k 2 1 1 8W Resistor SM 4 7kQ 5 1 8W Not Used Part No 64106 003 102880 237 102880 239 102882 351 102884 412 51821 626 102881 339 51821 625 102881 339 102884 606 102884 600 102882 351 517004 036 102879 208 102884 410 102881 351 102884 412 58711 100 58685 101 59958 104 590089 005 59832 002 59832 002 54749 000 102404 333 102404 300 102513 103 102404 300 102513 472 Ref No R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R29 R30 R33 R34 R35 TPI Ul U2 U3 U4 Circuit Board Assembly Refer to Figure X Description Potentiometer 10k 2 10 0 05W Resistor SM 100 5 1 8W Resistor SM 47kQ 5 1 8W Resistor SM 100 5 1 8W Resistor SM 150k22 5 1 8W Resistor SM 100 5 1 8W Not Used Resistor SM 7 5kQ 5 1 8W Not Used Resistor SM 092 5 1 8W Not Used Resistor SM 100 5 1 8W Not Used Resistor SM 1kQ 5 1 8W Resistor SM 75kQ 1 1 8W Connector Test Point Terminal IC SM Dual Op Amp LM833 IC SM LP Audio Amp MC34119 Not Used IC Voltage Regulator 12V 78L12 Part No 54131 005 102513 100 102513 473 102513 100 102513 154 102513 100 102513 752 102513 000 102513 100 102513 102 102404 384 20170014 00
8. pe and guantity of equipment a description of the problem and the serial number s Shipping to the Manufacturer All shipments of products should be made via UPS Ground prepaid you may reguest from Factory Service a different shipment method Any shipment upgrades will be paid by the customer The eguipment should be shipped in the original packing carton If the original carton is not available use any suitable container that is rigid and of adeguate size If a substitute container is used the equipment should be wrapped in paper and surrounded with at least four inches of excelsior or similar shock absorbing material All shipments must be sent to the following address and must include the Proof of Purchase for warranty repair Upon completion of any repair the equipment will be returned via United Parcel Service or specified shipper collect Factory Service Department Telex Communications Inc 8601 East Cornhusker Hwy Lincoln NE 68507 U S A Attn Service Table of Contents Chapter 1 Introduccion and Dep HON sa a a a E foakueaatdaaasesmaedseuenawa a Pes ripuon AMC SPCCINIC Kg SS A AA AN Gc MT T Features a delete ie Connections aad ONO Brei sustentat A Dm obe t lim mile a lal ale SPC CLEC ION e AN A NO O E eases PA ONE Chapter 2 OPEL a External Connections and Controls ba aa ia Internal Jumper iste oisi a Dabo md case nei ee NN a
9. tion is required on the intercom channel one an internal jumper must be changed as described in Table 1 To gain access to the jumper disconnect all power and line connections Remove two screws from the top of each side and two screws from the bottom of each side The jumper location is shown in Figure 2 FIGURE 2 Internal Jumper JUMPER DEFAULT NUMBER JUMPER FUNCTION SETTING J3 IFB Channel Selectilon Pins 2 amp 3 Pin 4 5 shorted Channel one IFB shorted Pin 243 shorted Channel two IFB Channel 2 TABLE 1 Internal Jumper Where to Obtain Parts Parts may be obtained directly from Telex at Telex RTS Systems 12000 Portland Avenue South Burnsville MN 55337 Telephone 800 392 3497 Fax 800 323 0498 Mechanical Parts Item No 1 O 0 Aa O On A db N Ra pas WO NY m Final Assembly Description Case IFB 325 Top Plate Not Used Circuit Board Assembly Knot Nylon Body Boot Knob Screw 4 40 x 0 25 Flat Head Belt Clip Screw 4 40 x 0 25 Pan Head Hole Plug Screw 4 40 x 0 1875 Pan Head Washer Lock Split 4 Valox Refer to Figure X for Item No location Part No 90607374 008 90707374 008 90307477 001 9160563 601 9160563 602 800124 001 91107600 00 51845 038 4501 2617 00 51845 073 50086 001 1303 0010 00 Item No 14 15 16 17 18 Item No 1 2 3 4 5 6 thru 9 10 11 CHAPTER 3 Replacement Parts Final Assembly Refer to
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