Telex Radiocom BTR-200 Series Service Manual Download Page 1

Page: 1 / 59

Summary of Contents for Radiocom BTR-200 Series

Page 1: ... _ _ _ _ c a J c ca 2 W I s Wi Ci c mm E w J I en t enW Z enD Q Em l iDD fa 8 0 a d a l l l L lOO it 3 ttl j l X W J W I ...

Page 2: ... Descdption PCB 70714000 3 9 Circuit Descdption PCB 750309 3 9 Alignment Procedure 3 10 Receive Board 70714000 3 10 Equipment Required 3 10 Receive Board 750309 3 11 Equipment Required 3 11 Voltage Tables Receive Board 70714000 3 14 Voltage Tables Receive Board 750309 3 15 PCB Receive Assembly 878522 Parts List 3 21 PCB Receive Assembly 878662 Parts List 3 24 Audio Board 3 27 Audio Board Circuit D...

Page 3: ...Side Versions I and 2 70714000 3 17 Schematic Diagram Receive Board Version 2 750309 3 18 Receive Board Component Layout Component Side Version 1 3 19 Receive Board Component Layout Foil Side 3 19 Receive Board Component Layout Component Side Version 2 750309 3 19 Schematic Diagram Receive Board Version I 750309 3 20 Block Diagram Versions 1 and 2 3 31 Block Diagram Versions 3 thlU 6 3 32 Audio Bo...

Page 4: ...TION The BTR 200 is a base station which communi cates with up to four portable units simultaneously in full duplex It may be used alone with a headset or interfaced to other equipment such as a hardwired intercom system n 1 1 ...

Page 5: ...o Talk Lock to Talk Switch Enables the local headset microphone audio func tion NOTE DOES NOT control base station RF transmit Local Push to Talk Indicator Will be il luminated whenever the talk function is on Local Microphone Gain Control and Over modulation Indicator A screwddver adjustable control is provided to control the input level of the local headset mic This input is protected from overl...

Page 6: ... SWITCH PORTABLE CARRIER INDICATORS I I I OCAL HEADSET VOLUME I i AUXILIARY ENABLE INDICATOR ENABLE SWITCHES TO RECEIVE PORTABLE TRANSMITTERS I Portabte Station Connect AUXILIARY LEVEL CONTROL AUXILIARY ENABLE SWITCH INTERCOM LEVEL CONTROL INTERCOM ENABLE SWITCH POWER ON INDICATOR Headset 8TR 200 1I LOCAL HEADSET CONNECTOR Figure 2 Front Panel BTR200 1 3 ...

Page 7: ...TtONS INC Fex 1 0 850BTR 200 MADE IN U S A Jack CO G LSpeaker l INTERCOM CONNECTORS o Intercom Input Transmit 1 TRANSMITTER SWITCH Headset Mic r h r l Oyn fit Cant Off Remote HEADSET MIC SELECT SWITCH AUXILJARY INPUT CONNECTOR o TRANSM IT ANTENNA CONNECTOR Transmit Anteflna SPEAKER LOCAL MONITOR 8 n MIN Figure 3 Rear Panel BTR 200 1 4 ...

Page 8: ...e CONT position the transmitter is always on This continuous mode is recommended over the REMOTE mode In the REMOTE position the transmitter is enabled only when one or more portables are active Headset Microphone Select Switch This switch allows the user to select either an Electret or Dynamic microphone This switch i factory preset to DYN Position NOTE All Telex headsets that are used with this ...

Page 9: ...or C124 and C125 see below Version 1 does not have this switchboard For Rev C and higher the location for the Rev letter is shown in Figure 5 AUDIO BOARD RECEIVE BOARD LOCATION OF SWITCHBOARD 70723 000 REV A COMP _ r I 2 2 I E _ __ _ o Figure 4 Location of Rev Level for Versions 1 and 2 REV LEVEL LOCATED UNDER TRANSMIT BOARD 70723 000 REV C AUDIO BOARD c a I U I I if 0 I 0 I I 3 I Xl I I l I E L_ ...

Page 10: ...vel for Versions 1 and 2 Early production units came with 70714000 and 750309 was installed in later units 70714000 came in two versions that differed slightly See table below Version 2 was built only with Rev C boards Version 1 was built with Rev A B or C boards The different revisions on this board were manufac turing changes that did not change the schematic 750309 Rev A boards are version 1 75...

Page 11: ...12 000 rEV A OONP I 70724 000 REV A COMP 7 o Figure 7 Location of Rev Level for Versions 1 and 2 All Rev Aboards are version 1 Rev B boards may be version 1or 2 Version R503 R521 CS31 1 4 7K 10K 0033uF 2 15K 68K 001 uF 2 3 ...

Page 12: ...78519 PCB Display I 2 54460001 Receptacle crimp 5 3 878520 PCB Audio I 4 51847011 Screw 4 40 x 1 4 flathead 8 5 878560 Wireset I 6 52264005 Connector Housing 5 Pin I 7 0086300 Copper strip 343 x 005 AIR 8 970011 1 Fish Paper 1 9 50049003 Lockwasher 16 10 51845038 Screw 4 40 x 114 pan head 18 II 51847003 Screw 2 56 x 1 8 flathead 1 12 450520 Standoff 8 13 51856001 Screw plastite 2 28 7 14 270229 Lu...

Page 13: ...aced with nuts and lock washers 8 Using an XLR tool or small flat bladed screwdriver unlock the XLR housings by turn ing the locking screw counterclockwise Then remove the XLR housings by pulling them to the rear 3 1 9 Unplug the cable harness at P1l4 and the two ribbon cables at P102 and P103 10 Remove 10 each 6 pan head phillips screws holding the circuit board to the chassis 11 Slide the circui...

Page 14: ...bility Q502 is a trip1er and Q503 is a straight through amplifier The catTier frequency is thus nine times the crystal C529 C530 and L503 function as a low pass filter and matching network 3 2 EQUIPMENT REQUIRED o RF POWER METER o FREQUENCY COUNTER o DC VOLTMETER 1 Connect the RF power meter and frequency counter to the Transmit Antenna jack Make sure the Transmit switch on the reat panel is set t...

Page 15: ...0 19 DEVICE 1 r r r jPI N N U rM B E F R r l1 18 17 16 15 14 13 12 5 2 5 2 5 2 5 2 5 1 2 5 2 5 2 5 2 5 2 5 0 9 10 8 7 6 5 3 4 2 1 U501 PIN NUMBER o DEVICE E B C Q50l 1 88 2 44 10 Q502 0 78 0 66 9 7 Q503 1 21 0 26 9 5 Q501 Q502 C B E Q503 C E B 3 3 ...

Page 16: ... C501 e V a lQ R517 OS03 0 N nc5 bc50 9 nS005 05 3 10I Q t 03 y f1 f1505 CS08 3 10100 I0 I I0 Iy C 00 Al O O Y e c Q Q 0 N u l l ol l 0 OC5 m R501 e D 0 0501 a C517 o o y ylO C529 U R504 C507 u 0 YWC502 l l 00C516 C518 tQ Ol L502 O Go J Y R510 0 R 5 0 C5 t9 t Wc501 r SILK SCREEN REV S U e Al R508 YSOl VRS01 Figure 10 Transmit Board Component Layout Component Side 3 4 ...

Page 17: ...WC501 VR501 t I 1 MV21 08 T 5K C513 R507 T 100pf 47K T T501 3 5 FREQUENCY DEPENDENT COMPONENTS TABLE FREQUENCY C516 C519 C520 C523 C524 C529 C530 T501 154 570 MHZ 27PF 39PF 100PF 18PF 33PF 68PF 20PF 000 177 800 MHZ 22PF 30PF 75PF 12PF 27PF 47PF 15PF 002 183 730 MHZ 22PF 30PF 75PF 12PF 24PF 47PF 15PF 002 Figure 11 Schematic Diagram Transmit Board Version 1 L501 C527 J 3PF VC502 Q503 502 MPs9011 L T...

Page 18: ...j U502 78L05 T501 FREQUENCY DE PENDENT COMPONENTS TABLE FREQUENCY C516 C519 C520 C523 C524 C529 C5JO T501 154 570 MHZ 27PF 39PF 100PF 18PF 33PF 68PF 20PF 000 177 800 MHZ 22PF 30PF 75PF 12PF 27PF 47PF 15PF 002 183 730 MHZ 22PF 30PF 75PF 12PF 24PF 47PF 15PF 002 Figure 12 Schematic Diagram Transmit Board Version 2 C530 I C529 I 7 T ...

Page 19: ... 0033 Version 1 52719004 C531 Ceramic 001 Version 2 52676101 Variable Capacitors VC501 VC502 Variable Capacitor 35837007 Transistors Q501 Q502 Transistor 2N5770 54689000 Q503 Transistor MPS 901 760376 Integrated Circuits mOl IC NE575N 53277003 U502 IC 78L05 54680005 Diodes VVC501 Diode MV2108 58675000 VVC502 Diode MV2108 58675000 Variable Resistor VR501 5K Variable resistor 57148068 Ref No Descrip...

Page 20: ...al conversion receiver consisting of one front end and four I F strips Signals entering the board proceed through 3 tuned circuits Q301 and three more tuned circuits to the mixer HY301 is a doubly balanced diode mixer and receives 7 dBm from the oscillator Q302 is a Colpitts oscillator with the collector tuned to the second harmonic on version 1 boards and the third harmonic on version 2 Y301 oper...

Page 21: ...inside the top of L307 and adjust VC307 for a peck indica tion 4 Set the RF voltmeter to its most sensitive scale without stray pickup 5 Place the RF voltmeter probe tip inside the top of L301 6 Increase the signal generator output level until the RF voltmeter indication just begins to rise 7 When adjusting reduce the signal generator output rather then reducing the RF voltmeter sensitivity 8 Adju...

Page 22: ...n 5 of U309 34 Set the signal generator output to 1 mV and adjust T327 for maximum audio at pin 7 of U31O 35 Adjust VR308 for 140 mV of audio at pin 7 of U31O 36 Set the signal generator output to 1 V and adjust VR307 to just extinguish the number 4 LED on the front panel Receive Board 750309 Equipment Required D Signal Generator D Sensitive RF Voltmeter D Audio Distortion Meter D Spectrum Analyze...

Page 23: ... for minimum distortion 18 Adjust VR320 for 140 mV of audio 19 Set the signal generator output to I tv 20 Adjust VR321 fully clockwise then turn it counterclockwise until the number I LED on the front panel just comes on 21 Set the signal generator to the channel 2 fre quency and increase the output to I mV 22 Move the audio hook up to U371 pin I 23 Adjust L372 for maximum audio 24A Version I Adju...

Page 24: ...o NOTES 3 13 ...

Page 25: ... Q304 Q306 2 63 Q308 Q310 Q305 Q307 0 Q309 Q311 6 65 DEVICE t r r PrIN N UrM B E Rr r r I 16 15 14 13 12 11 10 9 U301 U304 U306 U309 1 58 1 58 1 61 o 1 59 1 59 1 59 1 73 DEVICE 1I P F I N N U F M B E Rr l 16 15 14 13 12 11 10 9 PIN NUMBER 1 2 3 4 5 6 7 8 1 U301 U304 U306 U309 1 58 1 58 1 61 0 1 59 1 59 1 59 1 73 1 58 0 7 35 6 09 3 34 2 07 1 84 3 44 tmV RF IN U301 U304 U306 U309 1 2 3 4 5 6 7 8 PIN...

Page 26: ...307 U310 DEVICE _PIN N_U T M_B E_R J 8 7 6 5 Voltage Tables Receive Board 750309 DEVICE 1 r_ _ P_IN rN_U_M Br E_R _ Ir _ 1 18 17 16 15 14 13 121 11 10 o L303 Q G20 0 O a 4 G10S NOTE If this part is absent then surface mount part has been installed on foil side Pad designations are the same DEVICE VERSION Gl G2 D S Q301 1 0 1 9 22 1 Q301 2 0 1 8 8 8 0 36 U320 U370 U420 U470 I 2 13 0 0 9 34 0 36 2 5...

Page 27: ...RJ55 1 5K 1 5K DJOJ lN4148 CJ96 CJ96 lp lr C39J CJ97 TJ18 C400 C402 RJ53 C403T OlUF 220 i T OlUFY FL307 FL308 C424 13 1MHZ 39PF 12 5MHZ 43PF FL303 1 FREQUENCY FL304 C334 IC360 c3621c3631c3641c3651c3661c3671 C373 IC3801 1169 172 MHZ 11 56MHZ 001 UF 150PF 175PF168PFli oPFI39PF h oPFI50PF I 470PF 139PF I 1206 214 MHZ 11 075MHZ 6 2PF 156PF 82PF 175PFIt 1PFI43PF It 1PF 56PF IS60PF 143PF 1 Figure 13 Sch...

Page 28: ... oT321 VCJ03 R301 C3720 N 0 0 0 0 C340b 0 l I h 0 0 0 0 C436b lO rrn 0 0 0 CO C404b t _ 0 0 0 CO ro QC383 Ul C351 C3 9 t C447 C445 C415 3 R303 302 A 100011301 R337 8b OO342 C381OO31OO 0 R324 4 R373 00 378 R35 00 R360 C41 C308C lQ 030107C321 c OO R338 R341 n R320 OO323 n R374 R377 R356 R359 R304 lQ lQ 6 C3 10 01 C384CCb R343 tp C352CCP 00325 NP C448b 379 R449 C4160 R361 1417 R30S 6 C311 U06 R306 R3...

Page 29: ...08 C313 C421 C422 C472 CF370 CF420 CF470 L308 Y301 Y370 Y420 Y470 CF371 CF421 CF471 0420 169 172 MHz 5 6 pI 62 pI 50 pF 50 pI 1 2pF 4 7 pI 150 pI 43 PI 39pF 11 56 12 36 13 1 15 lH 171 005 12 015 12 815 12 555 MPSH10 MHz MHz MHz MHz MHz MHz MHz 206 208 MHz 4 7 pI SOpF 33 pI 33 PI 33 pI 2 2pF 180 PI 50 pI 43 pI 11 075 11 7 12 5 1O lH 207 6 11 53 12 155 12 955 MHz MHz MHz MHz MHz MHz MHz 212 214 MHz ...

Page 30: ... 0OC439 R370 0 388 R379 R320 C336 e R329 e U 486 c 01 1 0 7C370 CF ril 00C3890 C L03C20320 CF32 1 n O00 C339 0 OC470 CF47 O 00 0 C489 0 R o CF420 i0 0 00R434 L370 L37l Uhy 01 L32l olJ O Iil 00 R334 L470 L47l O 00 R484 L420 0 L42l a o c Y370 00 00 0 Y320 Ii 0 0 Y470 l 0 550 Y420 8 5 R433 a c Ii c c Ji IL II c c 0 IL 0 C37 0 0 13 R383 C324 QOU 0 0 a R333 C4740 0 0 0 R483 C4240 r J 0 C 2l J 0 rvC371 ...

Page 31: ...PF J3PF 180PF SOPF 43PF 11 075 11 7 12 5 15UH 207 6 11 53 12 155 12 955 MHZ Mill MHZ MHZ MHZ MHZ MHZ 212 214 MHZ 4 7PF 50PF 33PF 33PF J3PF 33PF laOPF SOPF 4JPF 11 075 11 7 12 5 1SUH 21J 8 11 53 12 155 12 9 MHZ MHI MHI MHl MHZ MHZ MHZ PJ01 9 C301 C 2 RJ15 47K R305 IK 307 3 JK R306 0 CJ lB I 001uF C3 CJ l V OB 05 y I 305 CJ C318 100PF I I oo1uF 1 1 CJ15 01UF I RJ12 470 L312 OUH 1 311 10UH C316 01Uf ...

Page 32: ...ramic 01 52676107 C3601 Ceramic 50 pF 35693049 C3602 3 Ceramic 56 pF 35693016 Ref No Description Part No C361 Ceramic 390 pF 35693025 C3621 Ceramic 75 pF 35693061 C3622 3 Ceramic 82 pF 35693018 C3631 Ceramic 68 pF 35693017 C3632 3 Ceramic 75 pF 35693061 C3641 Ceramic 1 pF 35693054 C3642 3 Ceramic 1 1 pF 724772 C3651 Ceramic 39 pF 35693014 C3652 3 Ceramic 43 pF 35693070 C3661 Ceramic 1 pF 35693054 ...

Page 33: ...c 100 pF 35693019 C448 Ceramic 01 52676107 C449 Electolytic 10 52723008 C450 Ceramic 1500 pF 35693032 C451 Electrolytic 1 51821106 C452 Poly Film 0022 52719053 C453 Poly Film 0056 52719068 C454 Ceramic 330 pF 35693024 VC301 VC307 Capacitor Variable 723086 4 RerNo DescrIption Part No Intergrated Circuits 0301 IC NE614 760375 0302 IC LM393 53284000 0303 IC NE 5532AN 53295001 U304 IC NE614 760375 030...

Page 34: ...K 52154056 R320 10M 1 4 watt 52154185 R321 10K 52154036 R322 22K 52154028 R323 lOOK 52154012 R324 220K 52154004 R325 R327 10K 52154036 R328 68K 52154016 R329 R331 10K 52154036 R332 4 7K 52154044 R333 1 5K 52154056 R334 16K 52154031 R335 R336 220 52154076 R337 l 5K 52154056 R338 10M 1 4 watt 52154185 R339 10K 52154036 R340 22K 52154028 R341 lOOK 52154012 R342 220K 52154004 R343 R345 10K 52154036 R3...

Page 35: ... C380 C381 Ceramic 120 pF 35693020 C382 Ceramic Z5U 1 52676113 C383 C384 Electrolytic 1 0 52723025 C385 Mylar 015 52719058 C386 Ceramic Z5U 1 52676113 C387 Mylar 0022 52719053 C388 Mylar 0056 52719068 C389 Ceramic 330 pF 35693024 C390 Ceramic Z5U 001 52676101 C391 C419 Not Used Ref No Description Part No C420 Ceramic Z5U 01 52676107 C421 1 Ceramic 150 pF 35693021 C4212 3 Ceramic 180 pF 35693022 C4...

Page 36: ...ransistor MPSHIO 54736000 Q421 Q422 Transistor MPS3704 54712000 Q470 Transistor MPSH 10 54736000 Q471 Q472 Transistor MPS3704 54712000 Ref No Description Part No Crystals and Filters Crystal Filter Insulator 450471 Crystal Insulator 450474 HY301 Mixer ASKI 760382 Y3011 Crystal Receive 171 905 MHz 780092 1 Y3012 Crystal Receive 207 8 MHz 780092 2 Y3013 Crystal Receive 213 8 MHz 780092 3 Y320 Crysta...

Page 37: ...Used R420 1 2K 52154058 R421 220 52154076 R422 68K 52154016 R423 1 5K 52154056 R424 IK 52154060 R425 330K 52154000 R426 220K 52154004 3 26 Ref No Description Part No R427 lOOK 52154012 R428 13K 52154033 R429 R430 220K 52154004 R431 100 52154084 R432 R434 10K 52154036 R435 R469 Not Used R470 1 2K 52154058 R471 220 52154076 R472 68K 52154016 R473 l 5K 52154056 R474 1K 52154060 R475 330K 52154000 R47...

Page 38: ...s the switch and tums on Q110 and Q111 via D110 This lights D609 and gates on the microphone audio Releas ing S110 tums off the microphone 3 27 U116A does not change state under these condi tions because C 82 is discharged when the clock is pulsed If however S110 is depressed twice in quick succession C182 will be charged for the second clock pulse and this will set U116A Now the microphone is lat...

Page 39: ...ntercom input auxiliary input microphone and receive board signals together to modulate the transmitter VR102 is used to set the level going into the transmit compressor for proper tracking On versions 3 and later U118 acts as a four pole Chebyshev low pass filter with a cutoff frequency of 5 KHz This is to prevent transmis sion of the 20 KHz tone which Telex intercoms use as the call signal 3 28 ...

Page 40: ...elect the AUX pushbutton on the front panel 8 Connect the signal generator to the Receive Antenna jack Set the deviation to 3 KHz at 1 KHz Setthe output to 1 mV Set the frequen cy to the channel 1 frequency listed in the chart of the receive board alignment I 9 Select the channel 1 pushbutton on the front panel 10 Connect the deviation meter to the ANT TRANS jack 11 Connect the audio voltmeter to ...

Page 41: ... I __ BALANCE INTERCOM GAIN TRANSMIT OUT INTERCOM T RS HIGH LOW ON VERSION 2 ONLy RECEIVER 3 1EXPANDER I __ I RECEIVER 4 1EXPANDER IC __ J o DYNAMIC ELECTRET HEADSET _ I 4ICROPHONE AUXIN MIC GAIN T 11 SPEAKER Figure 19 Block Diagram Versions 1 and 2 3 31 ...

Page 42: ...ER 2 1EXPANDER I BALANCE INTERCOM GAIN TRANSMIT OUT HEADSET INTERCOM SPEAKER RS HIGH LOW _ toI AUX IN DYNAMIC ELECTRET AUX GAIN RECENER 3 1EXPANDER I RECEIVER 4 1EXPANDER I HEADSET MICROPHONE Figure 20 Block Diagram Versions 3 thru 6 3 32 ...

Page 43: ...l02 _0 00QU106 O Eg 0 Rl 63 jRl02 o Rl90 C131 o R162 c RIM R12S R167 0 00 CllS AJ 0 0 o C18S l0 3 0 0 0000 Rl88Y iC aU109 O Ul04 Rl111 0 L J R17S a aooo Cl540 R128 00 cm R129 Cl22 o o O R133 O O sO O R20S bO bO o 0 0 C172 C174 C178 C178 o JIll Jl04 C18 C1S8 C181 0 0 C17 0 0 Co o 0 r Yt 0 V 0 o C17S Cl77 0 0 0 o a O 0 U113 0 C167 R200 R203 C1l4 R121 0 R1180 i 0000 SCJ OR124 Cll80 a W70 g Rl12 o J11...

Page 44: ...o Figure 22 Audio Board Component Layout Foil Side Versions 1 and 2 3 34 o ...

Page 45: ...2 tOUF 5107 lour 6SK 3 lR R202T 1OOK1 OOKl f Y C NOTE COMPONENTS IN DASH BORDER AREAS ARE LOCATED ON THE DISPLAY BOARD f I 0 I L __ J Example el03 0022UF 0110 lN4148 HEADSET SPEAKER R 88 B OK R189 68K I 15jr C152 7 IUr t C 3 urI Figure 23 Schematic Diagram Audio Board Version 1 R221 10K Dl09 R220 lN4146 5 1K R216 Q110 0111 MPS3704 IdPSJ704 R219 R217 l OK 10K D6091 I I I I TALK I I I L __ J R211 lO...

Page 46: ...3 OO22Ur R153 rv O OK 100 r L__J 1 j 1 Ul06 A R144 R 2B R125 2 lANCE f NE5532 Ul0J A 3 9K 10K 31 91 K t H INTERCOM VR101 1 r 2 9 0 0 P N 2 B R140 Rl41 I U103 B C122 t W t C115 OUTPUT il R12J _2J 1 1M 10K A _ NE 5 53 2 4 i I uf _ VIr J_ z _P _ Jg 5 2 100PF I r B EVEL j R155 R159 C1JJ 2 2K C116 fJ 4 1 C135 R12 1 __ Lj _ 50K B lOU 47PF R1J5 4 82K R126 5 J fl238 1 C125 C127l MlQ GAltt R142 1 1 F 4 8 1...

Page 47: ... DOES NOT HAVE THE SWITCH BOARD ASSEMBLY C124 AND C125 WILL BE LOCATED ON THE AUDIO BOARD RATHER THAN ON THE SWITCH BOARD o lI Joqa C_ It 1 5 Riv A Figure 25 Details ofBoard Differences Between Versions 1 and 2 3 37 ...

Page 48: ...5 o R134D o R185 oc Jo C136 0 0 e 0 0 0 0 0 DR222 0 0 0 0 0 0 0 0 a U115 Detail A C144 C145 U108 C141 laaaaaaa aaaa 0 o 070 0R181 R184 l8 CD 0 1 1 0 C142 d R182 C148 C146 NOTE THIS AREA OF THE BOARD WILL LOOK LIKE THIS ON VERSIONS 3 4 AND 5 BOARD ONLY VERSIONS 6 WILL REFLECT WHAT IS SHOWN ON FIGURE 27 o Detail B Figure 26 Details of Board Difference in Versions 3 4 5 and 6 3 38 ...

Page 49: ... c J Om 1 c I R111 IDDR217 5 R1M IO I R ll I c J 0112 Cl38 I I I Rl 53D 0 1 0113 0 I Dl111B BD108 18 c J J 0 1 Ill I I Ill r Ulll6 1 0114 I if Cl8 I U 18 IlI cL alIa r llJ R2ll1 n VRl92 I I C2ll0 D QI lQ b 81 Rl82Qg c I Cl82 0 R212 O Cl14 Rl25 c J c J Rlll4 SEE C1M c J RllSO c JC 5 87 D1 FIGURE 26 Cl95 R226 0 Cl Cl 0 C q J A 5CJ O Ulll4 Rlee Ill C191 DETAIL A I O D m i sl c 1111 1 l Ill Rl28 Cl l ...

Page 50: ... Figure 28 Audio Board Component Layout Foil Side Version 6 NOTE REFER TO FIGURES 26 AND 27 FOR DIFFERENCES IN VERSIONS 3 4 AND 5 3 40 ...

Page 51: ...OVERLOAD INDICATORS RISO IK RI33 1 5K R151 IK R 52 R147 I80K B 9 lJo4393 ri U I L 05 A l R146 lJo4393 10K 7 R117 R118 15K 18K AU SELECT UI02 A NE5532 L L 2_ R116 10K R112 10K R113 18K 0110 IN4146 M 0100 R220 IN4146 5 K 8 0110 0111 MPS3704 MPS3704 R219 R2 7 1 81 10K I l I I I TAlK I I L __ Rll0 O 02 4 7M 1N4 1 30 MPS3702 Rl1 i I 1 ClOO J 47K fUF R236 r JIJF C108 R 15 1M T 10U 1M T C105 C108 R109 lU...

Page 52: ...l1 1 T R 4 JK R115 100 1U U 2 A I J C163 NE575 Ib 1100Pf PORTAI3LE 1 C159 OK AG 10K 17 Y SELECT iii J l 5 I U112 8 C171 C 72 R 30 l IJ l 3 9K I1 llil t NE575 OUF S1 9i 10UF 4 7K J109 R J I I fi vV r J r v IR rR 96 M f 1 I C165 lOOKl OOK PORTABLE 1 1_ 06051 MPS3702 L 4 T hiOOUF i I 1 R210 0109 U t t I I 3 3K C160 OK 10K PORTABLE 2 OUF I i 1 l rM J1 1 U112 0 C 73 SELECT C 74 R131 I H 3 9K p o II I l...

Page 53: ...J l 5 I I l1 g fJJ 5105 C172 RI30 R 19 5 01 2 H 3 9K j 1 U F 4 7 K_ Jl09 1 lK IIPS370 J I r 1 r R194 R198 I cj R210 B lOOK lOOK t OUFT 3 3K C185 PORTABLE l ti A IV AA _t t C164 7 1OOUF 7 7 r 08051 IIPS3702 uI12 uFI I I 0109 NE575 I PI 1 C180 PORTABLE 2 _ _ I_ nU _4 OK AG 4 OK 11 I UI12 D C173 SELECT C174 R131 I NE575 10UF 5106 10UF 4 7K Jl08 R198 0 3 3 9K I lOf L rl t IoIV 1 lK IIPS370 r v IRI9 i ...

Page 54: ...CT C174 NE575 10UF 51 10UF IR 199r 100K I OOK T T R113 16K 0110 r lN4148 1 0 09 R220 lN4148 5 1K R 6 Qll0 Qlll MPS3704 MPS3704 R219 R217 l BK 10K r ii6091 I 1 TALK I 1 1 L__ J C105 Cl06 Rl09 K lUF l 0 1 IUI_F 4J 7JM Rll0 0112 Ql02 Rl0B l4 7M lN4ija MPS3702 10K QIOI Rl1 J Cl09 1 J177 47K 11UF R236 T 8 JF Cl08 1M y R115 10U 1 1 Cl01 2 2UF 8 lif0 4 AU J X 10 N l r j 4 lVH 2K Ul01 B R102 II NE 532 u 2...

Page 55: ...106 C153 Ceramic 100 pF 35693019 C154 Electrolytic 10 52723008 C155 Electrolytic 4 7 51821109 C156 Electrolytic 470 51821071 C157 Cl58 Ceramic 001 52676101 Ref No Description Part No C159cCl62 Electrolytic 10 52723008 C163 Ceramic 100 pF 35693019 C164 Electrolytic 1 0 52723025 C165 Electrolytic 100 52723004 C166 Electrolytic 1 0 52723025 C167 Ceramic 100 pF 35693019 C168 Electrolytic 1 0 52723025 ...

Page 56: ...3 6 18K 52154030 R119 3 3K 52154048 R120 4 3K 52154045 R121 10K 52154036 R122 5 6K 52154042 R123 2 2K 52154052 R124 13K 52154033 R125 10K 52154036 R1252 39K 52154022 R1253 6 2K 52154041 R1254 6 4 7K 52154044 Ref No Description Part No R126 10K 52154036 R1271 2 82K 52154014 R1273 6 10K 52154036 R128 10K 52154036 R12912 82K 52154014 R1293 6 10K 52154036 R130 133 2 68K 52154016 R130 1333 UK R130_1334...

Page 57: ...7 10K 52154036 R218 22K 52154028 R219 1 8K 52154054 R220 5 1K 52154043 R221 10K 52154036 R222 lK 52154060 R223 R2361 2 Not Used R2233 6 6 2K 52154041 R2243 6 10K 52154036 R2253 6 16K 52154031 R2263 6 33K 52154024 R2273 6 56K 52154018 R2283 6 47 52154092 R229 R2303 6 lOOK 52154012 R2313 6 20K 52154020 R2323 6 10K 52154036 R2333 6 16K 52154031 R2343 6 lOOK 52154012 R235 R2363 6 1M 52154988 R237 R239...

Page 58: ...Assembly 640063 3 J602 Cable Assembly 640063 3 Sprocket 450464 VR601 Pilier Potentiometel lOOK 724779 VR602 Piber Potentiometer lOOK 724779 VR603 Volumne Potentiometer 723087 VR604 Piber Potentiometer lOOK 724779 PCB600 PCB Display 70716000 LED601 LED Red 58713000 LED602 LED Green 58714000 LED603 LED Green 58714000 LED604 LED Green 58714000 LED605 LED Green 58714000 LED606 LED Yellow 58676000 LED6...

Page 59: ...______TELEX _ PN 802482 24 MAR 1993 Printed in U S A ...

Search results

Summary of Contents for Radiocom BTR-200 Series

Reviews:

Related manuals for Radiocom BTR-200 Series

Brands by name

Popular brands

Telex Radiocom BTR-200 Series, Service Manual

Search results

Summary of Contents for Radiocom BTR-200 Series

Reviews:

Related manuals for Radiocom BTR-200 Series

Brands by name

Popular brands