TM Digit al XTS 3000 TM Port able Radios Basic Service M anual *6881083C85*
Forew ord Th is m an u al covers all m od els of ASTRO™ Digital XTS 3000™ p ortable rad ios, u n less oth erwise sp ecified . It in clu d es all th e in form ation n ecessary to m ain tain p eak p rod u ct p erform an ce an d m axim u m workin g-tim e u sin g th e p ass/ fail service ap p roach . Th is basic level of service is typ ical of som e local service cen ters, self-m ain tain ed cu stom ers, an d som e d istribu tors.
Table of Cont ent s Fo re w o rd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . in sid e fron t cover Li st o f Fi g u re s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Li st o f Ta b l e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 - Ba si c Th e o ry o f Op e ra t i o n . . . . . . . . . . . . . . . . . Gen eral Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . An alog Mod e of Op eration . . . . . . . . . . . . . . . . . . . . . . ASTRO Mod e of Op eration . . . . . . . . . . . . . . . . . . . . . . RF Board Basic Th eory of Op eration . . . . . . . . . . . . . . . Con troller Board Basic Th eory of Op eration . . . . . . . . Vocod er Board Basic Th eory of Op eration . . . . . . . . . . . . . . . . . ..........
Port able Radio M odel Num bering Syst em Typical Model Number: H T Position: 1 0 0 2 94 U S C L F F 99 P P W W 3 4 5 6 7 8 9 Position 1 - Type of Unit A A 11 N N 12 S S 13 P P 14 0 0 15 11 16 Positions 13 - 16 “SP” Model Suffix D == Hand-Held Dash-Mounted Mobile Radio H Portable M = Motorcycle Mobile Radio T = Trunk-Mounted Mobile Radio Position 12 Unique Model Variations C = Cenelec N = Standard Package Positions 2 & 3 - Model Series 0904= =XTS 3000 ASTRO Position 4 - Frequency
SPECIFICATIONS FOR 800 M Hz RADIOS All sp ecification s are p er Electron ic In d u stries Association (EIA) 316B u n less oth erwise n oted. GENERAL RECEIVER FCC Designation: Temperature Range: Operating: Storage: AZ489FT5774 Frequency Range: Bandwidth: –30 °C to +60 °C –40 °C to +85 °C Quieting Sensitivity (20dBQ): TRANSM ITTER 851–870M Hz 19M Hz 0.5 µV M ax. Power Supply: Nickel-Cadmium Battery (NiCd) or Nickel-M etal-Hydride Battery (NiM H) Usable Sensitivity (12dB SINAD): 0.35 µV M ax.
GLOSSARY A/ D A n alog to D igital con verter; con verts an in stan tan eou s d c voltage level to a corresp on d in g d igital valu e. ABACUS IC Cu stom in tegrated circu it p rovid in g a d igital receiver IF backen d . ADSIC ABACUS/ D SP Su p p ort IC; cu stom in tegrated circu it p rovid in g p erip h eral fu n ction s for th e DSP.
M ISO Master In Slave Ou t; u sed by th e slave d evice to sen d d ata to th e m aster d evice. M OSI Master Ou t Slave In ; u sed by th e m aster d evice to sen d d ata to th e slave d evice. OM PAC Over-Mold ed P ad -Array Carrier; a Motorola cu stom IC p ackage, d istin gu ish ed by th e p resen ce of sold er balls on th e bottom p ad s. Open Archit ect ure A con troller con figu ration th at u tilizes a m icrop rocessor with exten d ed ROM, RAM, an d EEPROM.
Squelch Mu tin g of au d io circu its wh en received sign al levels fall below a p red eterm in ed valu e. SRAM Static-RAM ch ip u sed for volatile, p rogram / d ata m em ory. SSI Syn ch ron ou s Serial In terface on th e DSP56001 con sistin g of six sign als an d u sed for an RX an d TX m od u lated d ata in terface to th e ADSIC. St andby M ode An op eratin g m od e wh ereby th e rad io is m u ted bu t still con tin u es to m on itor d ata.
Not es viii
1 Int roduct ion General Th is m an u al covers in form ation n eed ed for level on e trou blesh ootin g. Level on e trou blesh ootin g con sists of rad io p rogram m in g, rad io align m en t, kn obs rep lacem en t, an d in stallation an d rem oval of an ten n a, belt clip , battery, an d u n iversal con n ector cover.
Radio Descript ion Th e ASTRO Digital XTS 3000 rad ios are am on g th e m ost sop h isticated twoway rad ios available. Th e rad io is p resen tly available in th e 800MHz ban d ; rad ios in th e UHF an d VHF ban d s will be available by th e en d of 1996. On e of th e n ewest in a lon g lin e of q u ality Motorola p rod u cts, th e ASTRO Digital XTS 3000 rad io p rovid es im p roved voice q u ality across m ore coverage area.
Basic Maintenance 2 Int roduct ion t o This Sect ion Th is section of th e m an u al d escribes p reven tive m ain ten an ce an d h an d lin g p recau tion s. Each of th ese top ics p rovid es in form ation vital to th e su ccessfu l op eration an d m ain ten an ce of you r rad io. Prevent ive M aint enance Th e ASTRO Digital XTS 3000 rad ios d o n ot req u ire a sch ed u led p reven tive m ain ten an ce p rogram ; h owever, p eriod ic visu al in sp ection an d clean in g is recom m en d ed .
Handling Precaut ions Com p lem en tary m etal-oxid e sem icon d u ctor (CMOS) d evices, an d oth er h igh tech n ology d evices, are u sed in th is fam ily of rad ios. W h ile th e attribu tes of th ese d evices are m an y, th eir ch aracteristics m ake th em su scep tible to d am age by electrostatic d isch arge (ESD) or h igh -voltage ch arges. Dam age can be laten t, resu ltin g in failu res occu rrin g weeks or m on th s later.
Recom m ended Test Equipm ent and Service Aids Recom m ended Test Equipm ent 3 Th e list of eq u ip m en t con tain ed in Table 2 in clu d es all of th e stan d ard test eq u ip m en t req u ired for servicin g two-way p ortable rad ios, as well as several u n iq u e item s d esign ed sp ecifically for servicin g th is fam ily of rad ios.
Table 3 Service Aids Mo t o ro l a P a r t Nu m b e r D e sc ri p t i o n Ap p l i c a t i o n RKN-4035D RIB/ Rad io/ Test Set Cable Con n ects rad io to RTX-4005B Test Box an d RIB. REX-4424 Battery Elim in ator In tercon n ects rad io to p ower su p p ly. RLN-4460A, or RTX-4005B, or both RTX-4005A an d RPX-4665A Portable Test Set En ables con n ection to th e u n iversal con n ector. Allows switch in g for rad io testin g.
4 Perform ance Checks Int roduct ion t o This Sect ion Th is section covers p erform an ce ch ecks u sed to verify th e rad io m eets p u blish ed sp ecification s. Th e recom m en d ed test eq u ip m en t listed in th e p reviou s section ap p roach es th e accu racy of th e m an u factu rin g eq u ip m en t, with a few excep tion s. Accu racy of th e eq u ip m en t m u st be m ain tain ed in com p lian ce with th e m an u factu rer’s recom m en d ed calibration sch ed u le.
To en ter th e test m od e: 1. Tu rn th e rad io on an d ad ju st th e volu m e for a com fortable listen in g level. Th e volu m e level rem ain s con stan t on ce in th e test m od e. 2. With in 10 secon d s after th e “ Self Test” is com p lete, p ress Side Butto n 3 five tim es in su ccession . 3. After “ RF TEST” ap p ears, p ress th e To p Pro gram m able Butto n (n orm ally p rogram m ed as th e em ergen cy bu tton ) on ce.
Control Top and Keypad Test M ode To ch eck th e d isp lay, bu tton s, an d switch es, p erform th e followin g tests: 1. Tu rn th e rad io on an d ad ju st th e volu m e for a com fortable listen in g level. Th e volu m e level rem ain s con stan t on ce in th e test m od e. 2. With in 10 secon d s after th e “ Self Test” is com p lete, p ress Side Butto n 3 five tim es in su ccession . 3. After “ RF TEST” ap p ears on th e d isp lay, p ress Side Butto n 1 on ce, “ CH TEST” ap p ears on th e d isp lay. 4.
- Press th e left-h an d M key on th e top row of keys, “ 131/1” ap p ears; release, “ 131/0” ap p ears. - Press th e cen ter N key, “ 132/1” ap p ears; release, “ 132/0” ap p ears. - Press th e righ t-h an d M key, “ 133/1” ap p ears; release, “ 133/0” ap p ears. Table 7 Receiver Perform ance Checks Te st Na m e Referen ce Freq u en cy Sy st e m An a l y z e r Mo de: PW R MON 4th ch an n el test freq u en cy❖ Mo n ito r: Freq u en cy error.
Table 8 Transm itter Perform ance Checks Te st Na m e Referen ce Freq u en cy Sy st e m An a l y z e r Mo de: PW R MON 4th ch an n el test freq u en cy❖ Ra d i o Te st Se t Co m m e n t s TEST MODE, 4 CSQ PTT to con tin u ou s (d u rin g th e p erform an ce ch eck). Freq u en cy error to be ≤ ±1.2kHz. Mo n ito r: Freq u en cy error. In p u t at RF In / Ou t Power RF As above As above, 4 CSQ As above Refer to Main ten an ce Sp ecification s p age in fron t of m an u al.
Not es 12
5 Radio Alignm ent Procedures Int roduct ion t o This Sect ion Th is section d escribes both receiver an d tran sm itter rad io align m en t p roced u res. General An IBM p erson al com p u ter (PC) an d rad io service software (RSS) are req u ired to align th e rad io. Refer to th e ap p licable RSS m an u al for in stallation an d setu p p roced u res for th e software.
SERVICE BF2 - TRANSMITTER ALIGNMENT MENU AF1 - HELP BF2 - REFERENCE OSCILLATOR ALIGNMENT CF3 - TRANSMIT POWER ALIGNMENT DF4 - TRANSMIT DEVIATION BALANCE (COMPENSATION) ALIGNMENT EF5 - TRANSMIT DEVIATION LIMIT ALIGNMENT JF10 - EXIT, RETURN TO SERVICE MENU CF3 - RECEIVER ALIGNMENT MENU BF2 - FRONT END BANDPASS FILTER ALIGNMENT Figure 2 RSS Service Menu Layout All SERVICE screen s read an d p rogram th e rad io cod ep lu g d irectly; you d o NOT h ave to u se th e RSS GET/ SAVE fu n ction s to u se th e SERV
Ad ju stin g th e softp ot valu e sen d s in form ation to th e rad io to in crease (or d ecrease) a d c voltage in th e corresp on d in g circu it. For exam p le, p ressin g th e UP arrow key at th e Referen ce Oscillator screen in stru cts th e rad io’s m icrocom p u ter to in crease th e voltage across a varactor in th e referen ce oscillator, wh ich in creases th e freq u en cy.
4. Measu re th e tran sm it freq u en cy on you r service m on itor. 5. Use th e É / Ç arrow keys to ad ju st th e referen ce oscillator softp ot valu e. See Table 9. Table 9 Reference Oscillator Alignm ent Ta rg e t 800 MHz ±150 Hz 6. Press again to d ekey th e rad io. 7. to p rogram th e n ew softp ot valu e. 8. Transm it Pow er Alignm ent F Press H Press J p ress J Ba n d on ce to retu rn to th e TRANSMITTER ALIGNMENT MENU, or twice to retu rn to th e SERVICE MENU.
Table 10 Transm it Power Setting 8 0 0 MH z P o w e r Le v e l Al l Te st Fre q u e n c i e s 3 Watts 3.2 - 3.4 F Press H 5. Press to d ekey th e rad io. 6. to p rogram th e valu e. 7. Rep eat step s 3-6 for th e rem ain in g freq u en cies. 8. Press J p ress J Transm it Deviat ion Balance ( Com pensat ion) Alignm ent on ce to retu rn to th e TRANSMITTER ALIGNMENT MENU, or twice to retu rn to th e SERVICE MENU.
7. Press F . Th is will cau se th e rad io’s DSP IC to ch an ge th e in jection ton e to 3kHz, 100m Vrm s. Use th e É / Ç arrow keys to ad ju st th e d eviation to with in ±2% of th e valu e record ed in step 5. 8. Rep eat step s 4-7 u n til th e 3kHz ton e d eviation is with in ±2% of th e 80Hz ton e d eviation . F 10.Press H 9. Press again to d ekey th e rad io. to p rogram th e n ew softp ot valu e. 11.Rep eat step s 3-10 for th e rem ain in g freq u en cies. 12.
Table 11 Transm it Deviation Lim it F Press H Ba n d D e v i a t i o n (H z ) 800 MHz 2785 - 2885 5. Press again to d ekey th e rad io. 6. to p rogram th e softp ot valu e. 7. Rep eat step s 3-6 for th e rem ain in g freq u en cies. 8. Press J p ress J on ce to retu rn to th e TRANSMITTER ALIGNMENT MENU, or twice to retu rn to th e SERVICE MENU.
Not es 20
Basic Rem oval/ Inst allat ion Procedures Int roduct ion t o This Sect ion 6 Th is section gives basic p roced u res for rem ovin g an d in stallin g th e XTS 3000 rad io’s: • An ten n a, • Battery, • Belt Clip , • Un iversal Con n ector Cover, • Volu m e Kn ob, an d • Freq u en cy Kn ob. Ant enna Installing the Antenna Screw th e th read ed en d of th e an ten n a in to th e an ten n a recep tacle on th e top of th e rad io.
Installing the Battery 1. Tu rn off th e rad io an d h old it with th e back of th e rad io facin g u p ward 2. In sert th e top ed ge of th e battery in to th e area at th e top of th e rad io between th e rad io’s case an d ch assis. Make su re th e th ree tabs on th e rad io ch assis align with th e th ree slots u n d er th e top ed ge of th e battery. 3. Rotate th e battery toward th e rad io, an d sq u eeze th e battery an d rad io togeth er u n til th e battery “clicks” in p lace.
Universal Connect or Cover ! When the universal connector is not in use, keep it covered with the universal connector cover. Caution Installing the Universal Connector Cover 1. Lookin g at th e an ten n a sid e of th e rad io, in sert th e top (flat) h ooked en d of th e cover in to th e slot on th e top of th e rad io, above th e u n iversal con n ector. Press d own ward on th e cover’s top to seat it in th e slot. 2.
2. Align th e ligh tp ip e (5) so th at its straigh t tab is over th e slot for th e illu m in ated p oin ter. Pu sh th e tab d own in to th e slot so th at it is secu rely seated . 3. Place th e secu re lever (4) on th e freq u en cy con trol sh aft, align in g it so th at its p oin ter is at th e fron t of th e rad io an d its two in n er slots lin e u p with th e two keys on th e sh aft. Slid e th e secu re lever d own to th e bottom of th e sh aft. 4.
1 2 Alignment Marker 3 6 Alignment Notch 4 7 15 5 8 16 9 17 21 18 10 11 A B C 20 0 00 S3 XT 12 ME HO 13 C EF 3D AB 2 1 HI 4G RS 7P NO 6M L 5 JK 8 TU XY 9W V 0 14 Figure 8 Partial Exploded View 25
Table 12 Partial Exploded View Parts List ITEM NO. M OTOROLA PART NO.
Basic Theory of Operat ion General Overview 7 Th e ASTRO Digital XTS 3000 rad io is a wid eban d , syn th esized , fixed -tu n ed rad io available in th e 800MHz ban d . All ASTRO Digital XTS 3000 rad ios are cap able of both an alog op eration an d ASTRO m od e (d igital) op eration in 12.5kHz or 25kHz ban d wid th s.
W h en th e rad io is transm itting, m icrop h on e au d io is p assed from th e au d io p ower am p lifier (PA) to th e DSP-su p p ort IC, wh ere th e sign al is d igitized . Th e DSP-su p p ort IC p asses d igital d ata to th e DSP, wh ere p re-em p h asis an d lowp ass (sp latter) filterin g are d on e.
Th e d igital back-en d IC con sists of an am p lifier, th e secon d m ixer, an IF an alog-to-d igital con verter, a baseban d d own -con verter, an d a 2.4MHz syn th esis circu it to p rovid e a clock to th e DSP-su p p ort IC on th e vocod er board . Th e secon d LO is gen erated by d iscrete com p on en ts extern al to th e IC. Th e ou tp u t of th e d igital back-en d IC is a d igital bit stream th at is cu rren t d riven on a d ifferen tial p air for a red u ction in n oise gen eration .
also req u ired for fu n ction ality. It is p rogram m ed u sin g p arallel p rogram m in g from th e m icrocon trol u n it an d th e DSP-su p p ort IC. Th e DSP-su p p ort IC p erform s an alog-to-d igital an d d igital-to-an alog con version s on au d io sign als. It con tain s atten u ators for volu m e, sq u elch , d eviation , an d com p en sation , an d it execu tes receiver filterin g an d d iscrim in ation . Th e IC req u ires a 2.
Radio-Level Troubleshoot ing Int roduct ion t o This Sect ion 8 Th is section of th e m an u al con tain s trou blesh ootin g ch arts an d error cod es th at will h elp you to isolate a p roblem . Level on e trou blesh ootin g will su p p ort on ly rad io align m en t, p rogram m in g, battery rep lacem en t, an d kn ob rep lacem en t. If th e rad io n eed s fu rth er trou blesh ootin g, it m u st be sen t to th e d ep ot.
Operat ional Error Codes Du rin g rad io op eration , th e rad io p erform s d yn am ic tests to d eterm in e if th e rad io is workin g p rop erly. Problem s d etected d u rin g th ese tests are p resen ted as error cod es on th e rad io’s d isp lay. Th e p resen ce of an error cod e sh ou ld p rom p t a u ser th at a p roblem exists an d th at a service tech n ician sh ou ld be con tacted . Use Table 15 to aid in u n d erstan d in g p articu lar op eration al error cod es.
Table 17 Transm itter Troubleshooting Chart Sy m p t o m Co r re c t i o n o r Te st (Me a su re m e n t s Ta k e n a t Ro o m Te m p e ra t u re ) P o ssi b l e Ca u se No RF Power Ou t 1. TX Power Level or Freq u en cy Ch eck TX p ower level an d freq u en cy p rogram m in g (from RSS). 2. No PTT From Con trol Top Sen d rad io to d ep ot. 3. No In jection To Power Am p lifier No Mod u lation ; Distorted Mod u lation 1.
Not es 34
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*6881083C85* 68P81083C85-O M otorola 8000 West Sunrise Boulevard Fort Lauderdale, Florida 33322
