COM-120C Maintenance Manual Supplement
Contents
1. W3P1 DS1J1 P NN AV 2 CAUTION CONTAINS PARTS AND ASSEMBLIES SUSCI IBLE TO DAMAGE BY H ELECTROSTATIC DISCHARGE ESD z p WIRE MRE RUNNING LIST DESG EROM COLOR AWG m A2WI 2 7 10 1 BLUE 26 En HE A2W2 A2EB J410 2 WHT BLUE 26 Hn E S A2W3 A2E1 J4 RED 22 G Sr A2WA 2 6 1 BUSS 22 A143 BE A2WS 2 3 J7 BUSS 22 em A2W6 A2E2 J5 BUSS 22 A2W7 2 4 16 BUSS 22 W5P1 9 EG x M A2WB 2 5 8 BUSS 22 A2J57W22P1 SEE DETAIL B AZWS 259 Ji0 3 BLK 26 y Wi R2 2 BER ORN 26 d A27 W2 R2 3 DES BLACK 26 Z WB5W1 W3P1 1 N C A2J2 2 W3Pi 2 R2 1 WHT7WIO 26 3 W3P1 3 1 WHT YEL 26 A2W3 4 W3P1 4 SES ORN 26 Lee 09 5 R1 3 BLACK 26 CA 6 01 1 WHT BRN 26 7 Ui 2 WHT GRN 26 Vi gh wows W3P1 8 U1 3 BLACK 26 A2W1 S E GS WAWI WAP1 1 48 1 BRN 26 o DS1W2P2 A4J3 GER2. FRONT PANEL AUDIO MOTHER BOARD SPEAKERS EXT MOD KEYBD CONTROLLER AUDIO DATA 006C 017 Figure 1 5 Front Panel Assembly System Interconnect Diagram Sheet 2 of 2 0000 0647 100 1 19 THIS PAGE INTENTIONALLY LEFT BLANK SECTION 2 PARTS LIST COMPOSITE ASSEMBLY 7003 0647 200 A1 REFERENCE PART DESIGNATOR NUMBER DESCRIPTION 1 6500 0658 500 MINOR ASSY CHASSIS 2 6004 6005 400 TY RAP 4 0 LG 3 4503 8752 600 RETAINER SPEAKER 4 2803 0375 006 SCREW 4 40 X 3 8 PPHM 5 2803 0250 006 SCREW 4 40 X 1 4 PPHM 6 2803 0188 003 SCREW 4 40 X 3 16 PFHM 7 2803 0125 006 SCREW 4 40 X 1 8 PPHM 8 2803 0250 003 SCREW 4 40 X 1 4 PFHM 9 1405 0658 400 PANEL REAR 10 1414 8758 700 COVER BATTERY 11 2506 0658 700 PLATE FT PNL FINGERSTOCK 12 1050 0000 354 LOCTITE HEAVY DUTY ANIT SEIZE 13 2845 0000 017 FINGERSTOCK BRIGHT TIN PLATED 14 2850 8757 200 NUT N CONN SPACER T R PORT 15 2850 1692 600 SCREW 340L35 6 25HH 4 40X 410 16 2805 0375 006 SCREW 8 32X3 8 PHIL BIND HD 18 2400 0655 900 LABEL BAT
3. REF DS MECH ASSY MECH ASSY s P1 06A5J1B8 06A5J1A 7005 8740 300 B SE REF FREQ STD REF FREQ OPT 02 AR EANED n 57 EXTERNAL 10MHz REF DES 06 5 25 REF DES 06A5A26A1 REF FREQ 7005 0646 800 7005 0646 900 C Ca W34 Ji J4 u 52 a lt 1 88 90MHz Ist LO 10MHz OVEN REF FREQ GEN TRAY GEN TRAY OPT 02 E e J4 J5 Ol Oil J6 J2 110MHz REF 10MHz REF 10MHz REF J3 7 J8 10MHz OVEN OPT 02 P2 p2 1MHz REF 10MHz REF SYNTHESIZER SYNTHESIZER SYNTHESIZER 10MHz REF 1MHz REF 1MHz REF REF DES 06 5 26 Ste wis DIGITAL TRAY RCVR TRAY TRAY TRAY TRAY GEN TRAY ANALYZER TRAY BASEBAND TRAY 7001 8740 900 e e eil P1 P1 P1 P1 w26 28 wo w2 3 w4 w20 w23 Ke efie crees SS MECH ASSY E FAN FRU REF DES 06A5A23 e 7005 8742 900 M WI 06A5A22A3J2 AC IN P1 J2 MECH ASSY POWER SUPPLY M REF DES 0645422 7005 0645 400 06A5A22A3J1 C DC IN ES P1 4 e wi wi NA 0 J MECH ASSY FAN FRU J1 REF DES 06 5 24 En 7005 8742 900 W41 PCMCIA 5 REF DES 06A5A3 7010 0631 800 P1 P2 Jo w17 wis wig w20 w21 7 A2W22 W24 w23 w25 w25 W27
4. 6C 008 00 Sheet 5 of 7 7003 0647 200 Figure 1 2 Composite Assembly 1 10 BLU RED WI ORN WHT NEINSCHEL RUNNING LIST 26 26 26 26 BLACK AN AUXILIARY AMP CONN RED AND CK AUDIO BD m _ SPEAKER CONN 1 lee TION PAR Oneco noa UUDL UUZ Figure 1 2 Composite Assembly Sheet 6 of 7 7003 0647 200 1 11 BECH i wv TYPE rec ee 8 AO WITH IFR P N A We 4000 0011 000 BATTERY BATTERY FUSE 10A TYPE F WARNING TO AVOID ELECTRIC SHOCK DISCONNECT MEASURING TERMINALS BEFORE REMOVING THE BATTERY Of AC Fuses REPLACING FUSES 3A 250VAC NOTICE TO AVOID BATTERY DIS TYPE F CHARGE DURING STORAGE OF MORI O THAN TWO WEEKS DISCONNECT THE AG POSITIVE LEAD OF BATTERY o9 J 9 10MHz REF IN IEEE 488 RS 232 i
5. MMMM v A22WIP1 BA A8 006 006 Figure 1 2 Composite Assembly Sheet 3 of 7 7003 0647 200 1 8 A2002 W31P2 A22J3 A26W1 P1 S 2 A224 A24W1P1 TT A22J1 W41P1 o q ech ATIJ Ph W37 fis 2 W31P1 cE pu A22J2 A23WIP1 gu T ci 1 j f A 3 FT 1 A21J5 ATI WIP1 d A21J4 A18WIP1 d d A21J3 A20WIP1 SG 3941 A212 A19WiP1 15 x2 11 4 4 A21J1 W37P1 W39 d A20J1 W30P2 L W40J1 A19 3 W30P1 1 r A18J1 W1P1 A18J4 W2P1 A18J4 W35P1 OPTION CONFIGURABLE A18J2 W32P1 16
6. PAGE 2 WIRE RUNNING LIST DESG FROM IO COLOR AWG 5 1 01 51 WHT 26 P1 02 152 BLK 26 LS1 LS2 WHT BLK 26 W43P1 FINGERS x4 006C 004 Figure 1 2 Composite Assembly Sheet 1 of 7 7003 0647 200 1 6 W35P1 A27 AUXILIARY d P1 2 GND BLK 1 12 RED A27WIP1 W36P1 vAp j p Mu VIEW B B 8 SCALE 2X T AN W36 DETAIL F A5A26 REF FREQ 2 4 OVEN 5 A5A25 E REFERENCE FREQ STD lt lt 2 W30 e e ania 22 lt gt SS s A20W1P1 St W29P2 m i gt bas P O J Om CAUTION y CONTAINS PARTS AND ASSEMBLIES KS SUSCEPTIBLE TO DAMAGE BY ELECTROSTATIC DISCHARGE ESD 006C 005 Figure 1 2 Composite Assembly Sheet 2 of 7 7003 0647 200 1 7 BT1J2 A22 at lt 4 A5A10 lt 4 gt dE D DR x mx SE x OPTION CONFIGURABLE amp o g gt lt x Hyd G EE i 559 Cu pog EMS Zus mi N Zx s lt EO C288 20 7 LUC EE T E 4
7. 5V A wi 2 2 PURCHASED ASSY RS 232 TEST CONN FRONT PANEL KEYPAD NE ET REFDES 92 45V A e 5 5 2 epi POTS SPINNER e 5 E nc NC i m 2 2 SQuELCH 3 3 VOLUME 3 W5WA Y PA D WSWS 5 5 FIRMWARE ASSY E W5W6 Y RE is Sie KEYBOARD CONTROLLER W5W7 Y all sd aug REFES A1 W5w8 Y Els A 1 J1 MOTHERBOARD B 2 J4 NDS rS OPT SPINNER GND 2 CHB 3 5V 4 CHA 5 GND di P2 A 5 PURCHASED ASSY INVERTOR SUPPLY REFDES A4 J4 AUX AMP OPTION J4 SCOPE DVM 38 it IN e 10 F6 ae A2W4 NV Se A2W5 E3 6 AUDO DATA M7 H SPARE OPTION SINAD IN J3 K PI B Ce A2W6 E2 PCB ASSY 48 w22 EXT MOD FRONT PANEL AUDIO SCOPE IN REFDES A2 J9 J2 A5W41 MIC ACC Tarea MIC ACC PTT OUT 1 111 MIC IN 2 2 2 J3 DEMOD 3 i HE SPEAKERS R5232 TX 4 4 NP 10Vde 5 55 7 RS232 RX 6 6 6 71 PTT IN 7 OW J7 AMP CAL 8 8 up ET s 5 THAM L J6 G A2W7 564 E7 PHONES o 1 DEMOD OUT PHONE JACK NTERFA E E EB SPEAKER 2 2 5 2 ISPLAY 1 C PHONES REFDES A5 E9 PHONES GND A2W9 3 J8 P A2WB E5 AUDIO DATA 97 GEN OUT W7 TO J5 s DIGITAL HN 9 TRAY JA d 2 J5 AUX RF OUT 1 18 ANALYZER TRAY 006C 016 Figure 1 5 Front Panel Assembly S
8. A9 A11 8 7 6 A4 A6A1J1 W40 FROM FRONT PANEL SMB CONN A2A2W22 A2W6P2 DIGITAL TRAY A4A1J1 A5A1J1 TO FRONT PANEL OPTION CONFIGURABLE W38P2 A1J5 ANT PORT Gd W12 A1J1 W37P2 59 OPTION 02 w29 527 Ke 5 6 A1J2 W39P1 W41 _ A1J3 W41P2 A1J4 A25W1P1 STD A1J4 A26WIP1 OPTION CONFIGURABLE o T NV CAUTION CONTAINS PARTS AND ASSEMBLIES SUSCEPTIBLE TO DAMAGE BY ELECTROSTATIC DISCHARGE ESD 006C 007 Figure 1 2 Composite Assembly Sheet 4 of 7 7003 0647 200 1 9 a m S m NES uo lt ot ix OSI lt lt Lo Oo Xam as ogo 24 auf zou o iiec A Ze CAUTON
9. N 1 v N 1 I E NM 65 5 Bez CAUTION CONTAINS PARTS AND ASSEMBLIES SUSCEPTIBLE TO DAMAGE BY ELECTROSTATIC DISCHARGE ESD Figure 1 2 Composite Assembly Sheet 7 of 7 7003 0647 200 1 12 W37 N P1 P1 wi 2 m 6042 8780 800 we O6ASWI JI gt SCH ui PCB ASSY T R 2 i J4 ATTENUATOR CONTROL J Se REF DES 06A5A21 wi MECH ASSY 7010 8733 500 _ N30 MECH ASSY 06A5A2J3A PI 4 6042 8781 100 D AUXILIARY AUX RF OUT POWER TERMI J5 MECH ASSY J3 GEN ONE REF DES 8 CEN OUTPUT GEN REF DES 06A5A19 7005 8742 100 PI iA e GEN x 5 7005 8740 300 1 REF DES 06 5 20 GEN CONV GEN OUT 8 W32 7007 8784 000 WS 7005 8742 300 x 6042 8780 900 6042 8781 000 gs wd 1188 5 J2 PASS M J2 P1 P2 J2 J2 J4 WEE DES MONITOR RF POWER LEVEL GEN j t
10. kHz TONE R Z ie FM DEMOD gt PM DEMOD GEN MODE QUT e NT MOD NTROLLER RIAL DATA DEMOD RECEIVED LEVE 10MH 10MHz 57 13dBm 0 ENK lus SERIAL DATA INDICA POTENTIOMETER PO SSB OPTION REF DES O6A5 REC LEVEL SQUELCH LED TO FRONT PANEL 700kHz SB DEMOD 3C 002 Figure 1 1 COM 120C System Block Diagram Sheet 2 of 3 1 4 OPTIONAL PCMCIA CARD CONIROL BLOCK DIAGRAM RF GEN SYNTHESIZER RECEIVER BASE BAND ANALYZER DIGITAL LCD TRAY TRAY TRAY TRAY TRAY TRAY REF DES 06A5A17 REF DES 06A5A16 REF DES 06 5 9 REF DES O6A5A8 REF DES 06A5A7 REF DES 06A5A4 AAAA AK 4 5 E lt 2x E lt p E s m m lt lt lt lt eso lt lt lt Fo 8 m a ana A a a WEE N o o 2 I GR r ux ES EE Kap Se zc EE o SOF gt o xoc OFE dc c DCS lt E Oz Koa Wo lt Let te d lt lt lt wade lt Woke Wet Woe nd d oo ech non t oo D oou m ech non a non IU e D di N al lt a lt DS DATA SERIAL DATA SERIAL DATA ATTENUATOR EE CLOCK CLOCK gt CONTROL FRONT uL HC STATUS STATUS
11. e RMS DC e CONVERTER SCOPE SINAD DISTORTION METER SECTION CIRCUITS lt de SCOPE DWM IN AUDIO DATA IN WDE BAND RMS TO DC FILTER BANK A CONVERTER I AF DECODE SINAD AUDIO DATA IN FILTERED e e 2 300Hz HPF AUDIO DATA 4 AkHz HPF IN II 300Hz LPF 4kHz LPF 20kHz LPF COUNT C WEIGHTED BPF AF COUNTER SECTION BUFFER acce EXTERNAL e D EXT MOD IN EXT MOD IN MOD IN x L AUDIO DATA IN LIMITER e AUDIO DATA IN a Ww BASE BAND SCOPE S BQ WER METER SCOPE DVM IN e WIDE BAND POWER TERMN ON RF POWER gt REF DES 06A5A18 W27 COM 120C System Block Diagram Sheet 3 of 3 Figure 1 1 1 5 SEE DETAIL A ON PAGE 6 Ze CAUTION CONTAINS PARTS AND ASSEMBLIES SUSCEPTIBLE TO DAMAGE BY ELECTROSTATIC DISCHARGE ESD NOTES 1 BASIC REFERENCE DESIGNATORS SHOWN FOR COMPLETE DESIGNATOR PREFIXES REFER TO x2 PRODUCT STRUCTURE AND SYSTEM INTERCONNECT FOR APPLICATIONS WHERE 5 4 USED wer 2 CONFORMABLE COAX W AND P DESIGNATOR NOT SHOWN FOR DRAWING CLARITY TAG W DESICNATOR 602 On 002 b 60 FINGERS 5 APPLY ANTI SIEZE COMPOUND 12 TO SCREW TREADS PRIOR TO ASSEMBLY gt gt CONFIGURED ITEM REFER TO HIGHER LEVEL BOM SEE DETAIL F AUXILIARY AMP ON
12. 88 90MHz 88 90MHz 10MHz 10MHz 10MHz REF 90MHz ist LO 2nd LO 3rd LO 3rd LO 2nd LO ist LO 2nd LO 110MHz REF 10 2 REF 10MHz REF 3rd LO 21 4MHz 21 4MHz 88 90MHz 1st LO 10MHz REF a 5 DISPLAY REF FREQ RCVR TRAY DGTL TRAY FR PNL PWR TERMN REF REF REF FREQ ANALYZER SYNTHESIZER SYNTHESIZER SYNTHESIZER RCVR TRAY RCVR TRAY RCVR TRAY GEN REF FREQ REF FREQ REF FREQ ANALYZER GEN TRAY SYNTHESIZER GEN GEN REF FREQ OPTION OPTION TRAY TRAY TRAY TRAY CONV TRAY TRAY CONV CONV EE 2 2 3 2 2 2 2 2 A2 p PHONE JACK 9 MECH ASSY FRONT PANEL MECH ASSY MECH ASSY MECH ASSY MECH ASSY MECH ASSY REF DES 06A5A2 DIGITAL TRAY RECEIVER TRAY OPT 08 RECEIVER TRAY OPT 03 SYNTHESIZER TRAY GENERATOR TRAY 7005 0647 100 REF DES 06A5A4 REF DES REF DES O6A5A11 REF DES 06A5A16 REF DES 0645A17 7005 0647 900 7001 8743 200 7001 8743 300 7005 8740 700 0640 600 06A5A2J9 MIC ACC Al A2 j Pi NEEDS P1 P1 x7 x2 xt K B n CONT PCB ASSY EE ES 53 MOTHER BOARD REF DES 06A5A1 w38 7010 0631 400 6045 8780 400 006C 011 Figure 1 8 System Interconnect Diagram Sheet 1 of 3 0000 0647 200 1 13 MECH ASSY GEN CONVERTER wi
13. 2298MHz 5dBm TO 10dBm w20 10MHz 7dBm TO 13d8m FRONT PANEL ANT 137dBm TO OdBm NOMINAL INPUT SIGNAL SWEEP 050 FROM ANALYZER 121 5 2 TO 123 3MHz CENTER z 0 We CONNECTOR TO RECEIVER JEE 40dBm LEVEL w21 O GENERATOR TRAY FREQ UP TO 6MHz SWEEP Sapi 7598 MONITOR CABLE CROSS FEED I mo SCOPE DVM CONNECTION w4 dee Z vd ee 25 poH 137dBm TO 7dBm DC TO 20kHz UP TO 24V WS 90 9 OM A UT W3 H W RECEIVER JUMPER 88MHz TO 90MHz 9dB 14dB GAIN FROM ANT INPUT W3 IMHz REF FROM REF dees H d 700kHz FROM RECEIVER TO RF n We ERROR METER ON DIGITAL TRAY 700882 gp ING AKE LOAD waa ANALYZER TNT TEN APP 20dB GAIN JUMPER CABLE FROM 88 90MHz INPUT W7 W7 RECEIVER TO ANALYZER TO 90MHz OdB 4dB GAIN FROM ANT INPUT W3 DVM LEVEL FROM ANALYZER W25 DC TO 20kHz UP TO 14 ge FIRST LO FROM SYNTHESIZER dE BASEBAND TRAY RAY TO RECEIVER TRAY IMHz REF FROM REF N 5 sis SECOND LO FROM SYNTHESIZER SEI EEN W26 FREQ TO BASEBAND TRAY NES rel Sop RAY TO RECEIVER TRAY POWER LEVEL FROM POWER id 10MHz REF FROM REF W27 TO BASEBAND TRAY DE 9 19 NOMINAL FREQ TO RECEIVER 1MHz REFERENCE TO W28 1MHz 3 0Vop TO 5 0Vop i HIRD LO FROM SYNTHESIZER DIGITAL TRAY wit Uy TO BERS 77 3MHz TO 79 3MHz 5dBm TO 10dBm EXTERNAL 10MHz FROM a Ae 110 REF FROM REF FREQ EE EE Wee REAR PANEL TO REF FREQ
14. SR 086 M SMA ST M SMA ST W36 6042 8781 500 COAX SR 086 M SMA ST M SMA ST W37 6045 8780 300 RBN CA ASSY MOTHERBD ATTEN W38 6045 8780 400 RBN CA ASSY MOTHERBD FT PNL W39 6045 8780 500 RBN CA ASSY MOTHERBD RS232 W40 6045 8780 600 RBN CA ASSY GPIB W41 7007 0683 000 W HARN ASSY MOTHBD PWR SUPPLY W43 7007 8783 900 WIRE HARNESS COMPOSITE SPEAKER W46 6008 1000 011 WIRE UL1213 26GA 7X34 WHT BLK 2 2 CHINA Tel 86 10 6467 2716 Fax 86 10 6467 2821 EUROPE NORTH Tel 144 1438 742200 Fax 44 1438 727601 EUROPE SOUTH Tel 44 1438 742200 Fax 44 1438 727601 FRANCE Tel 33 1 60 79 96 00 Fax 33 1 60 77 69 22 GERMANY Tel 49 8131 29260 Fax 49 8131 2926130 HONG KONG Tel 852 2832 7988 Fax 852 2834 5364 LATIN AMERICA Tel 1 972 899 5150 Fax 1 972 899 5154 SCANDINAVIA Tel 45 9614 0045 Fax 45 9614 0047 SPAIN Tel 34 91 640 11 34 Fax 34 91 640 06 40 UNITED KINGDOM Tel 44 0 1438 742200 Stevenage 44 0 1703 273722 Chandlers Ford Freephone 44 UK Only 0800 282 388 Fax 44 0 1438 727601 Stevenage 44 0 1703 254015 Chandlers Ford USA Tel 1 316 522 4981 Toll Free 1 US Only 800 835 2352 Fax 1 316 522 1360 As we are always seeking to improve our products the information in this document gives only a general indication of the product capacity performance and suitability none of which sha
15. YR O SYNTHESIZER TRAY COAX CABLE FROM GEN E DEN 0 25MHz TO 1000MHz 4048 7198 10MHz REF FROM RE m CONVERTER TO GEN OUTPUT FREQ TO SYNTHESIZER TRAY l EE SRO W31 0 25 TO 1000MHz 10dBm NOMINAL W14 21 OMHz 7dBm TO 13dBm BE EIRO 32 0 25 2 TO 1000MHz 10dBm 127d8m D OM STI O 3 5 9 Wid 77 3MHz TO 79 3MHz 5dBm TO 49dBm OPTIONAL JUMPER TO RECEIVER TE SECOND LO FROM SYNTHESIZER te ae tee nee RAY SSB OPTION 10MHz REF ONS NEEN RAY TO GEN CONVERTER sar FRN OPTIONAL 10MHz REF FROM 21 4 2 FROM SYNTHESIZER 21 4 TO 21 4024MHz SS OMHz TO REF FREQ RAY TO GEN TRAY INC 100Hz NPUT FROM POWER W 0 0 213 we 88MHz FROM GENERATOR MEN Aio E Wis ERMN TO AUX AMP pou EE RAY TO GEN CONVERTER 9 9 36 OUTPUT EROM AUX 0 25MHz TO 1000MHz 137dBm 13dBm AMP TO FRONT PANEL 006C 01 5 Figure 1 8 System Interconnect Diagram Sheet 3 of 3 0000 0647 200 1 15 AUTI ES ASSEMBI CONTAINS PARTS AND SUSCEPTIBLE BY lt GE ESD DISCHAR CODO 47 COOOOO 95 GOGH XN Figure 1 4 Front Panel Assembly Sheet 1 of 2 7005 0647 100 1 16 7 U ON I PANEL REAR W22 DS1WIP1 A4J2
16. i EAT A 3 REF DES 06A5A2 PANEL MAIN PROCESSOR DIGITIZER LATCH 7 S a Bs LATCH 6 ke AUXILIARY ALARM lt KEYBOARD INTR REF DES Le SPEAKER DATA GPIB ke 20dB ATTEN ALARM 06A1A2 6 OPTION RF LEVEL ALARM CONTROLLER TRAY REF DES 06 5 6 POWER ON POWER SUPPLY REF DES O6A5A22 OPTIONAL GPIB BUS PCMCIA RS 232 BUS PCMCIA REF DES 06A5A35 FRONT PANEL REF DES AUX CONN PROTECT CIRCUIT POWER TERMN 06A5A18 SE CIRCUIT GEN OUTPUT REF DES 06A5A20 ALC CIRCUIT METERS INDEPENDENT METERS BLOCK DIAGRAM BASEBAND REF DES 06A5A8 L RS 232 CONNECTOR DVM SECTION OPTIONAL GPIB CONNECTOR TO SPEAKER AMP ON FRONT PANEL DIGITAL TRAY gt TO ANALYZER TRAY REF DES O6A5A2 ANALYZER TRAY REF DES O6A5A7 lt AC Oey AUDIO DATA IN_ WIDE_BAND e SPEAKER LINE BUFFER BUFFER 3 SCOPE DVM e 22 w25 SCOPE DVM AC laus IN DVM CIRCUITS N RM TOSDE 12 87 L I AUDIO DATA IN e CONVERTER RMS DC e 9 SERIAL BUS BUFFER EXT MOD IN
17. An Aeroflex Company COM 120C Communications Service Monitor Maintenance Manual Supplement 1002 0601 4PO MAINTENANCE MANUAL SUPPLEMENT COMMUNICATIONS SERVICE MONITOR COM 120C PUBLISHED BY IFR COPYRIGHT IFR 2003 All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior permission of the publisher 10200 West York Wichita Kansas 67215 U S A 316 522 4981 FAX 316 524 2623 WARNING HIGH VOLTAGE EQUIPMENT THIS EQUIPMENT CONTAINS CERTAIN CIRCUITS AND OR COMPONENTS OF EXTREMELY HIGH VOLTAGE POTENTIALS CAPABLE OF CAUSING SERIOUS BODILY INJURY OR DEATH WHEN PERFORMING ANY OF THE PROCEDURES CONTAINED IN THIS MANUAL HEED ALL APPLICABLE SAFETY PRECAUTIONS SAFETY FIRST TO ALL SERVICE PERSONNEL REFER ALL SERVICING OF UNIT TO QUALIFIED TECHNICAL PERSONNEL CASE COVER OR PANEL REMOVAL Removing protective covers casings or panels from this unit exposes the technician to electrical hazards that can result in electrical shock or equipment damage SAFETY IDENTIFICATION IN TECHNICAL MANUAL This manual uses the following terms to draw attention to possible safety hazards that may exist when operating or servicing this equipment CAUTION THIS TERM IDENTIFIES CONDITIONS OR ACTIVITIES THAT IF IGNORED CAN RESULT IN EQUIPMENT OR PROPERTY DAMAGE e
18. COOLING AND CONTINUED RELIABILITY DO NOT OPERATE EQUIPMENT IN THE VERTICAL POSITION ON PLUSH CARPET OR UPHOLSTERY TO AVOID IMPAIRING THE AIR EXHAUST WHEN OPERATING THE TEST SET IN THE NORMAL HORIZONTAL OR TILT BAIL POSITION MAINTAIN AT LEAST 1 6 INCHES FOUR CENTIMETERS OF CLEARANCE BETWEEN THE EQUIPMENT REAR EXHAUST FAN SCREEN AND OBJECTS OR WALLS PREFACE SCOPE This Maintenance Manual Supplement containing maintenance information for the 120 is intended to be used in conjunction with the COM 120B Maintenance Manual ORGANIZATION The COM 120C Maintenance Manual Supplement is composed of the following Paragraph Title Page SECTION 1 DRAWINGS System Block Diagram bee EE ER ERI 1 3 Composite Assembly er uec 1 6 System Interconnect a uma suu eese ess hehehe nnne 1 19 Front Panel Assembly uy su du Encre 1 16 Front Panel Assembly Interconnect 1 19 SECTION 2 PARTS LIST Composite Assembly bed 2 1 THIS PAGE INTENTIONALLY LEFT BLANK SECTION 1 DRAWINGS TITLE PAGE COM 120C System Block Diagram 1 3 Composite Assembly 7003 0647 200 1 6 System Interconnect Diagram 0000 0647 200 1 13 Front Panel Assembly 7005 0647 100 1 16 Front Panel Assembly System Interconnect Diagram 0000 0647 100 1 18 1 1
19. FORMED WITH THE FOLLOWING PRECAUTIONS BEFORE USE IN A CIRCUIT KEEP ALL LEADS SHORTED TOGETHER EITHER BY THE USE OF VENDOR SUPPLIED SHORTING SPRINGS OR BY INSERTING LEADS INTO A CONDUCTIVE MATERIAL WHEN REMOVING DEVICES FROM THEIR CONTAINERS GROUND THE HAND BEING USED WITH A CONDUCTIVE WRISTBAND TIPS OF SOLDERING IRONS AND OR ANY TOOLS USED MUST BE GROUNDED DEVICES MUST NEVER BE INSERTED INTO NOR REMOVED FROM CIRCUITS WITH POWER ON PC BOARDS WHEN TAKEN OUT OF THE SET MUST BE LAID ON A GROUNDED CONDUCTIVE MAT OR STORED IN A CONDUCTIVE STORAGE BAG REMOVE ANY BUILT IN POWER SOURCE SUCH AS A BATTERY BEFORE LAYING PC BOARDS ON A CONDUCTIVE MAT OR STORING IN A CONDUCTIVE BAG PC BOARDS IF BEING SHIPPED TO THE FACTORY FOR REPAIR MUST BE PACKAGED INA CONDUCTIVE BAG AND PLACED IN A WELL CUSHIONED SHIPPING CONTAINER NV CAUTION 12 THIS EQUIPMENT CONTAINS PARTS SENSITIVE TO DAMAGE BY ELECTROSTATIC DISCHARGE ESD SIGNAL GENERATORS CAN BE A SOURCE OF ELECTROMAGNETIC INTERFERENCE EMI TO COMMUNICATION RECEIVERS SOME TRANSMITTED SIGNALS CAN CAUSE DISRUPTION AND INTERFERENCE TO COMMUNICATION SERVICES OUT TO A DISTANCE OF SEVERAL MILES USERS OF THIS EQUIPMENT SHOULD SCRUTINIZE ANY OPERATION THAT RESULTS IN RADIATION OF A SIGNAL DIRECTLY OR INDIRECTLY AND SHOULD TAKE NECESSARY PRECAUTIONS TO AVOID POTENTIAL COMMUNICATION INTERFERENCE PROBLEMS KEEP ALL VENT OPENINGS CLEAR AND UNOBSTRUCTED FOR PROPER EQUIPMENT
20. ION GEN SINAD IER H AUDIO DATA IN DATA COEN MOD AUDIO DATA 5 AUDIO DA TONE DECODER COUNTER TN e 3n on lt DTM DATA DECODER tT 4KHz LPF PES AEST E Nh PANEE MOD METERS 20KHz LPF NT MOD MIC IN FROM FRONT GEN MODE SUMMING C FILTER el c WEIGHTED AME lt DATA ENCODER DATA DECODER RMS e 2 METER 1kHz TONE FM AM PM MODULATION METERS REC MODE 12 BIT A D Le PEAK WW CONVER C z amp Mz MOD DEVIATION METER 5kHz PEAK R EN ANALYZER lt REF DES e e EXT MODULATION Y Z GEN MOUE SAMPLE START 1KHz NOTCH RESIDUA E Ee NT MODULATION SEE 3 N VERTICAL RN UIRE DATA e AUDIO DATA IN V gt AUDIO DATA IN Se OFFSET E c FILTER 9 INT MODULATION a A uu SPEAKER PE wo SELECTOR gt 3 TO SPEAKERS 10002 MOD METER 2 SE tkHz TONE Rufe cus AND e AF ODE SINAD N Y OR 9 COUNTER A V C FILTER DATA DECODER 4 ai Ee 1KHz NOTCH RESIDUAL 9 73 el DETECTOR OU gt DETECTOR OUT OUT CONNECTOR C FILTER OUT DEMOD OUT CONNECTOR X ILTER e a RF POWER Y MOD METER Ce DtVOD OUT 1kHz R AUD DATA GEN OUT E SINAD
21. LYZER CLOC RAMP m 26 TO BASEBAND 110MHz ME ENE PA TOE REF DES O6A5A7 3rd LO SELECT BPF emi BAD 3LANK 1 W28 TO DIGITAL TRAY EE REF DES Y 3MHz d E O6A5A16A3 300 Eeer Ps EEN SYNTHESIZER s f MULTIPLIER COARSE LOO FINE Li 12 Mrz M x SOkHz gt E 2MHz INCR x lt x11 PU 55 9 57 9MHz 21 4MHz MHZ MA ra gt gt 21 4024 110MHz 1210MHz N 100Hz INCR 89MHz 6MHz mm m 773 T0 5 10 89 5MHz R E z 50dBm 4dB SEH SCOPE DVM OOkHz R 4 1k LOAD SF ERROR C 2nd LO 5rd LO _ 77 5 10dBm 0 IF AMP DEMOD WEI IT REF DES 06A5A9A2 mu S SE MONITOR MHz X M TEGRAT gt RU ANTENNA RE 5 INPU 1299MHz lt gt OMHz IRAY REC ALARM AME S O0kHz Figure 1 1 COM 120C System Block Diagram Sheet 1 of 3 1 3 MODULATOR REF DES 0645A17A2 SUMMING AMP T NT MODULATION gt gt SUMMING AME DIGIT RAY a 1kHz TONE G REF SS n jas fe AUDIO DATA SEN 2 LBN 2 5 e GEN QUT lt TI CEA ET RETTA CON lt FUNCT
22. M SMA RA 5 6044 1430 680 COAX C HS SL SMB RA F SMB RA TAG 6 6044 1430 950 COAX C HS SL F SMA RA F SMA RA TAG 7 6044 1431 900 COAX C HS SL F SMB RA F SMB RA TAG 8 6044 1430 570 COAX C HS SL F SMB RA F SMB RA TAG 9 6044 1430 450 COAX C HS SL F SMB RA F SMB RA TAG 10 6044 1430 850 COAX C HS SL F SMB RA F SMB RA TAG 11 6044 1431 160 COAX C HS SL F SMB RA F SMB RA TAG 12 6044 1451 400 COAX C HS SL F SMB RA F SMB RA TAG 13 6044 1431 280 COAX C HS SL F SMB RA F SMB RA TAG 14 6044 1430 950 COAX C HS SL F SMA RA F SMA RA TAG 15 6044 1431 160 COAX C HS SL F SMB RA F SMB RA TAG 16 6044 1432 330 COAX C HS SL F SMB RA F SMB RA TAG 17 6044 1430 450 COAX C HS SL F SMB RA F SMB RA TAG 18 6044 1432 200 COAX C HS SL F SMB RA F SMB RA TAG 19 6044 1432 330 COAX C HS SL F SMB RA F SMB RA TAG 20 6044 1431 350 COAX C HS SL F SMB RA F SMB RA TAG 21 6044 1431 350 COAX C HS SL F SMB RA F SMB RA TAG 23 6044 1431 350 COAX C HS SL F SMB RA F SMB RA TAG 24 6044 1430 350 COAX C HS SL F SMB RA F SMB RA TAG 25 6044 1430 290 COAX C HS SL F SMB RA F SMB RA TAG 26 6044 1431 350 COAX C HS SL F SMB RA F SMB RA TAG 27 6044 1472 780 COAX C HS SL F SMB RA F SMB RA TAG 28 6044 1430 850 COAX C HS SL F SMB RA F SMB RA TAG 29 6044 1441 110 COAX C HS SL F SMB RA M SMA ST w1 6042 8780 800 COAX SR 141 F N ST M SMA ST Wan 6042 8781 100 COAX SR 086 M SMA ST M SMA RA W31 6042 8781 000 COAX SR 086 M SMA ST M SMA ST w32 6042 8780 900 COAX SR 086 M SMA RA M SMA RA W35 6042 8781 400 COAX
23. S WAP1 2 J9 2 RED 26 A2W9 gt f A2W2 WAWA W4P1 3 J9 3 ORN 26 WAWA W4P1 4 J9 4 WHT 26 te W4P1 5 J9 5 BEROK 28 W4P1 6 19 6 GRAY 26 W4P1 7 J4 7 26 11 WAWB W4P1 8 J4 8 BLACK 26 03 8 A Ci 10 1 GL2 m f J10 3 GL2 J8 7 63 J8 7 J9 8 J A2w8 Gei 46 A2W7 A2W6 A2W5 d L SEE DETAIL C x Miser 9 227 DETAIL D PIN 1 NOT USED VH R2 gu K W4 w5 gt a NFS NU We bs A2J4 DETAIL B DETAIL C DETAIL AT 006 015 Figure 1 4 Front Panel Assembly Sheet 2 of 2 7005 0647 100 1 17 SQUELCH VOLUME lt DS1W1 PURCHASED ASSY 2 DISPLAY REFES 051 0510 2 P1 GE w3
24. TERY FUSE 19 2400 9931 500 LABEL S N V W COM 120C 20 1400 8758 100 BRACKET FAN DUCT 21 6500 8781 700 MINOR ASSY BATTERY BOX 22 2803 1188 006 SCREW 4 40 X 1 3 16 PPHMS 23 1400 0657 900 BRACKET REF FREQ 24 2400 0000 005 INTERNAL OPTIONS TAG 26 2403 0656 000 OVERLAY REAR PANEL 27 2800 8764 500 SPACER N CONNECTOR 7010 0631 400 PCB ASSY MOTHERBOARD A2 7005 0647 100 MECH ASSY FRONT PANEL COM 120C A3 7010 0631 800 PCB ASSY PCMCIA INTERFACE A4 7005 0647 900 MECH ASSY DIGITAL TRAY A6 7010 0632 200 PCB ASSY CONTROLLER COM 120B 7 7010 8731 300 PCB ASSY ANALYZER A8 7010 8731 100 PCB ASSY BASE BAND A16 7005 8740 700 MECH ASSY SYNTHESIZER TRAY A17 7005 0640 600 MECH ASSY GENERATOR TRAY A18 7005 8742 100 MECH ASSY POWER TERMN A19 7005 8740 300 MECH ASSY GEN CONVERTER A20 7005 8742 300 MECH ASSY GENERATOR OUTPUT A21 7010 8733 500 PCB ASSY ATTENUATOR CONTROL 22 7005 0645 400 MECH ASSY POWER SUPPLY A23 7005 8742 900 MECH ASSY FAN A24 7005 8742 900 MECH ASSY FAN A27 7005 0641 200 MECH ASSY AUXILIARY AMP ATI 2901 8700 110 ATTEN PRG 110dB 10dB STEP RLY 2 1 COMPOSITE ASSEMBLY 7003 0647 200 A1 cont REFERENCE PART DESIGNATOR NUMBER DESCRIPTION 1 1 7007 8784 000 WIRE HARN COMPOSITE ATTENUATOR 11 2200 0410 100 CONN ADAPT F BNC F SMASTR BHD 1 51 5950 0000 004 SPEAKER MYLAR 2 25 DIA LS2 5950 0000 004 SPEAKER MYLAR 2 25 DIA TAG 3 6044 1441 860 COAX C HS SL F SMB RA M SMA ST TAG 4 6044 1402 950 COAX CONF SL F SMB RA
25. THIS PAGE INTENTIONALLY LEFT BLANK 1 2 155 5 2 17 DD SI AAD ANA aaa eae aa ING GENERATOR TRAY NALYZER BLOCK DIAGRAM Aden dB NOM 88 5 SE is 5kHz DEV 6 REF DES 06 5 17 10dBm NOM SkHz DEV CKING MO 5kHz DEV OR CONN x A S o 5 OR CONV e o GENERATOR OUTPU E S 06 5 19 NORMAL MODE mn cte SUMMING 227 a s xx gt Se 1GHz LP A 1299MHz BPF A SOS SUMMING T R 0 7 13dBm AMP 10MHz wink JC CONTROL 35 3MHz lt EMP SENSOR gt SWEEP IN 2 5kHz INCR gt RF LEVEL ALARM wig TO PROCESSOR 7M 1210MHz 0 14 9dBm LEVEL AUX PORT ALARM CONT i ec W12 CONT AUX AMP G CROSSFEED We 3rd LO 155 5MHz six ads OMHz 50dBm M Geh Y TIPLIER D Wid 1ST LO OPTIONA OMHz TO 2289MHz OVEN M 2MHz INCR REF DES 06A5A17A1 EXTERNAL 4 OMH 10MHz d iz 0 VIDER W23 3d8m 1MHz 3 H SYNTH 10MHz 21 MHz 0 E CH wis 7 13dBm 4 2dBm REF DES 06A1A8 w16 Z d Se RAMP ANA
26. g FIRE WARNING THIS TERM IDENTIFIES CONDITIONS OR ACTIVITIES THAT IF IGNORED CAN RESULT IN PERSONAL INJURY OR DEATH SAFETY SYMBOLS IN MANUALS AND ON UNITS A CAUTION Refer to accompanying documents AC TERMINAL Terminal that may supply be supplied with ac or alternating voltage O SWITCH OFF AC line power to the device is OFF SWITCH ON AC line power to the device is ON d DANGEROUS VOLTAGE Indicates electrical shock hazard due to high voltage levels EQUIPMENT GROUNDING PRECAUTION Improper grounding of equipment can result in electrical shock USE OF PROBES Check the specifications for the maximum voltage current and power ratings of any connector on the unit before connecting it with a probe from a terminal device Be sure the terminal device performs within these specifications before using it for measurement to prevent electrical shock or damage to the equipment POWER CORDS Power cords must not be frayed or broken nor expose bare wiring when operating this equipment USE RECOMMENDED FUSES ONLY Use only fuses specifically recommended for the equipment at the specified current and voltage ratings CAUTION CAUTION CAUTION INTEGRATED CIRCUITS AND SOLID STATE DEVICES SUCH AS MOS FETS ESPECIALLY CMOS TYPES ARE SUSCEPTIBLE TO DAMAGE BY ELECTROSTATIC DISCHARGES RECEIVED FROM IMPROPER HANDLING THE USE OF UNGROUNDED TOOLS AND IMPROPER STORAGE AND PACKAGING ANY MAINTENANCE TO THIS UNIT MUST BE PER
27. ll form part of any contract We reserve the right to make design changes without notice Web www ifrsys com Email info ifrsys com
28. t GEN GEN ei GEN 2nd LO 88 90MHz ist LO Si S B RCVR TRAY BASEBAND ATTEN PWR TERMN GEN OUT ATTEN SYNTHESIZER TRAY GEN TRAY GEN TRAY 2 7005 0641 200 T n 8 lt AUX OUT AUX OUT P1 y P1 BEE HES DO ASATI P2 P2 P2 1 d WR TERMN E NEEN E E w4 w27 2901 8700 110 wie Wis wig wi O6A5A2J1A 06A5A2J18 wa 9 P1 SPEAKER 1 FRU SPEAKER 2 FRU REF DES 06 5151 REF DES 06A5LS2 5950 0000 004 59 00 004 wio l k gr J4 W46 ae d was 7007 8783 900 I 06A5A2J4 J H SCOPE DVM SE n J5 A2W22 l SCOPE Kea A Saas hous ANALYZER TRAY x EXT A2 MOD IN e A2W7 f j W 06A5A246 DEMOD OUT 9 INT 72 M CN 06A5A2J7 R w28 D I 3 D I w5 Wo l w33 W33 7 wa wit wit we wie wi2 w3 DIES 5 w7 wis wig W2O W21 AUDIO DATA 9 J Ip I 2 SINAD IN 2 2 2 Y P2 Y 2 2 Y 2 P2 2 P1 P1 P1 P1 A P2 Y P2 Y BS Y P1 P1 A Ft A P2 Y P2 B E EE O W 4 lH e 5 2 G e e l 53 eil e lH hl L I Jill e e I 6A5A 5 s 92 J5 J3 J2 13 J6 2 J2 J4 5 A J4 A J4 Ji J2 J2 Ji 43 J2 3 E Ji A J2 EN OUT 5 REF 700kHz 700kHz ANTENNA MONITOR
29. w26 a 8 Y Y Y 8 BATTERY FRU AC3001 2 P1 P1 2 2 2 2 P2 2 2 2 P2 ji REF DES 5 P I 0 0011 0 3i m s J3 J4 A Ji J2 6 5 J4 J7 J3 Ji J2 J8 J3 J2 Ji B 21 4MHz 88 90MHz 1st LO 10MHz REF SWEEP OSC SWEEP OSC 3rd LO 90MHz SCOPE 10 MHz 10 7MHz 1MHz REF DVM OUT DVM RF POWER 1MHz REF wo andi SYNTHESIZER GEN GEN REF FREQ ANALYZER GEN TRAY SYNTHESIZER RCVR TRAY FR PNL REF FREQ BASEBAND ANALYZER LEVEL REF FREQ 6045 8780 600 TRAY CONV CONV TRAY TRAY TRAY TRAY PWR TERMN lt A2 2 1 39 MECH ASSY ANALYZER TRAY 6045 8780 500 W39J1 GENERATOR TRAY REF DES 06A5A7 BASEBAND TRAY CONTROLLER TRAY RS 232 REF DES 0645417 7010 8731 300 REF DES 06 5 8 REF DES O6A5A6 MOTHERBOARD 7005 0640 600 7010 8731 100 7010 0632 200 12 1 37 wat ZC 3 m A e P1 P1 P1 P2 P2 P1 xi e 4 J4 J2 REF FREQ ATTENUATOR PWR SUPPLY RS232 CONTROL 006C 001 1 14 Figure 1 8 System Interconnect Diagram Sheet 2 of 3 0000 0647 200 COAX DEFINITION TABLE COAX FUNCTION SIGNAL FREQUENCY SIGNAL LEVEL COAX FUNCTIO SIGNAL FREQUENCY SIGNAL LEVEL T R TO POWER TERMN 137dBm TO 20dBm SIGNAL OUT Ke FIRST LO FROM GENERATOR mer me wi 0 25MHz TO 1000MHz wig GE 1300MHz TO
30. ystem Interconnect Diagram Sheet 1 of 2 0000 0647 100 5 A 5 5 KEYPAD KEYBOARD CONTROLLER DATA BUS DATA BUS EPROM ROW DATA BUS ADDRESS BUS ADDRESS BUS KEYPAD KEYPAD li INTERFACE CONTROL BUS SOFT KEYS COLUMN PERHERIAL BUS PERHERIAL BUS PERIPHERAL BUS On D d S me BUS DATA BUS DATA BUS MICROCONTROLLER RAM SPINNER SE ADDRESS BUS ADDRESS ADDRESS BUS INTERFACE DECODER Le BOWER POWER A n PERHERIAL BUS CONTROL Bus PERIPHERAL BUS SPINNER DATA 22 POWER A APPLIED 412V 413v 710 CRT ANALOG ANALOG SPINNER CONTROL BUS RS 232 A D INTERFACE BUS FILTER A D BUS A D BUS VOLUME LED SQUELCH DRIVERS CONTROL BUS BEEP s K INTERFACE DATA BUS DATA BUS Y RELAY VOLUME T3 E INTERFACE PERHERIAL BUS PERHERIAL BUS CONTROL 3 ALARM AUDIO PROCESSOR EE el RESE DISPLAY ESET RESET INTERFACE DIGITAL TRAY PHONE JACK m 1 BI SCOPE DW SCOPEZDVM SCOPE POWER AMP d IN SCALING ANALYZER La TRAY 3 120 kHz LPF PTTIN B I PTTOUT EXT MOD mw IN IV gt ANT AUX 6kHz LPF ANT AUX MIC ACC 120 kHz LPF AMP RELAYS 29 ee 552 E
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