Predelava M110
Contents
1. i i3 j i k T L E ka k KI y ge E ib I SS ee BEE Ae TONE B beets i LI I I ei i 2 E 5 i 5 I F y md 9 Figure A Alignment point on RF board Connect an audio oscillator to the microphone audio input through the circuit in figure C Set the oscillator frequency to one kHz and the output level to 800 mV RMS Preset pots R302 VCO MOD and R305 REF MOD fully CCW Select any transmit channel For PL models select channel that transmit PL Key the radio and adjust the VCO MOD pot R302 for appropriate deviation level Channel spacing Deviation setting 25 kHz e 4 6 kHz 20 kHz 3 7 kHz 12 5 kHz 2 3 kHz Note Aleksander Stare S56AL E mail s56a email si We TU ei i HIE A If and deviation readings differ use only the higher reading Change the audio oscillator frequency to 200 Hz and maintain the output level at 800 mV RMS Key the radio and observe the waveform on an oscilloscope connected to demodulated output of atest receiver Test receiver should be non deemphasized and there must be dc coupling between the test receiver and the scope AC coupling is suitable if the corner frequency is 2 Hz or lower Adjust R305 REF MOD for the flattest square wave response with minimum tilt Return the audio oscillator frequency to one kHz 800 mV and repeat step 5 TO ALIGN THE RECEIVER Predelava M110 17 H2. Zasnova predelave nova funkcionalnost tipk in prikaza E Predelava M110 4 HAM Asien ee Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com The idea of the modification was to use as much of the existing hardware as possible Three modification concepts were examined Probably the most elegant way to improve the radio would be to obtain and modify the source code of the main board microcontroller MC63A01 firmware which takes care over the functionality of the M110 Another although more time consuming method would be to write a completely new firmware Unfortunately both concepts would require an access to at least an emulator of the 6301 single chip microcontroller plus availability of the firmware in first case and complete detailed schematics of the circuits in the second case Neither of this was available to me The 6301 is a pretty old microcontroller which as far as I know doesn t exist in a FLASH program memory version that would allow a development of the firmware with reasonably simple and cheap tools The only way found to be realisable was to analyse the communication between the M110 main and display unit micro controller break this communication and insert an additional hardware module that would use existing display keyboard unit as a man machine interface outwit the main processor and control the PLL chip The chosen modification concept as well as the new functionality of th
3. This disconnects the PLL chip from 12 Put the housing cover and the display the main board microcontroller Put the unit back to their place connect the main processor board back to its place transceiver to the antenna or dummy HEADER Connection to the main board 12V pParallel to the pin 13 of the 15 pin DB15 connector To the ground of the main board PCB find a strong suitable ground area GND somewhere on the main board close to the module header and connect with the shortest possible wire INFOBL Parallel to the via marked with R figure 8 arrow 4 E MMIT Parallel to the pin 3 of the 15 pin DB15 connector T1750 Parallel to JU805 PTT A Parallel to the pin 2 of the 15 pin DB15 connector MBTX Tothe pin 8 at the main board side of the 15 pin DB15 connector MBR X LEM Requires no connection this is just a spare source of the regulated 5V supply voltage may be used for other purposes X MBRX J Tothe pin 15 at the main board side of the 15 pin DB15 connector DISRX To the pin 8 at the display side of the 15 pin DB15 connector DISTX To the pin 15 at the display side of the 15 pin DB15 connector Parallel to the pin 2 of the header that connects the main board with the PLL PLLEN VEN board figure 8 arrow EN Parallel to the pin 3 of the header that connects the main board with the PLL PLLDT i ANT board figure 8 arrow DT Parallel to the pin 4 of the header that connects the main board with
4. pri ge se rumena signalna lu ka LED Ce se TRX odziva tudi na pritiske na tipke izberemo prosto delovno frekvenco ter aktiviramo stikalo PTT Pri gati se mora rde a signalna lu ka Ce imamo kontrolni sprejemnik preverimo modulacijo d 15 Radijska postaja je pripravljena za prvo Slika 9 Konektor DB15 zvezo slika 11 ANYHY39 NI Sve IbEZVSN9BT 313 3401240 ALEATE I DD TOKU k VUOOrEVZJECOIHH N D TTISUUR g 108008 p 5 CELLET sb E L4 L E E Eo D A Slika 10 Namestitev dodatnega modula Predelava M110 11 HAM Asien ee Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Predelava M110 Aleksander Stare S56AL E mail s56alGemail si Hardware upgrade 1 Kontakt Remove the display unit and aluminium top cover from the transceiver body Remove the plastic cover from the display unit no screws only rubber holds it in place Locate the 820 Ohm resistor see figure 6 arrow 1 and desolder it This turns off the horrible key click tones generated by the display unit processor Locate the 10 Ohm resistor see figure 6 priklju ne letvice 12V MBRX PLLEN PLLDT PLLCK Povezati na kontrolerski plosci s priklju kom 13 konektorja DB15 Slika 11a Radius M110 po predelavi Z maso glavne kontrolerske plosce poiskati primerno dovolj veliko povrsino mase na tiskanini in povezati s im kr
5. E mail sb6al Qemail si Vodilo SPI Obstoje i mikrokontrolerski MC145158P2 modul HD63A01 Vodilo UART RX TX Dodatni mikrokontrolerski modul AS0211 Ostale analogne PIC16F876 enote TRX Vklop glasnost RX TX Zvo nik TY Radiu Am d 145 8 5 j a 1l E CO C9 G9 CO C 1 P 3 d 3 Nova funkcionalnost tipk gem Sguelch vklop zvo nika izklop zvo nika Seu Prikaz napajalne napetosti RA oddaja 1 50Hz tona TX D GE Preklop simplex dupleks G00kHz inverzno 600KHz 4 Izbira koraka nastavljanja frekvence 12 5kHZ 25kHz 100kHz 5 6 Nastavitev frekvence dol gor Slika la Zasnova predelave Predelava M110 3 HAM Asien ee Predelava M110 Darko Volk Kacice 15 6215 Divaca Slovenia Aleksander Stare S56AL E mail darko volk siol com E mail s56a email si delovanja manj pomembne funkcije 1 s krizcem X sta oznaceni za potrebe predelave prekinjeni izvorni serijski Koncept predelave je ilustriran na sliki podatkovni vodili MOTOROLA M110 DISPLAY AFTER MODIFICATION REY ER SE 600 kHz DUPLEX FREQUECY VOLTAGE cO SPE ARERR 100 25 12 5 La A SLEP IM kHz MOTOROLA RADIUS M110 HAM MODIFICATION SPEAKER OMOFF SQUELCH 1750 kHz TONE ON TA VOLTAGE DISPLAY ON RX DUPLEX 600 kHz REVERSE SIMPLEX FREQUENCY STEP 12 5 gt 25 100 kHz FREQUENCY DOWN FREQUENCY UP m Mm dn 2 MJ Fe EZH Slika 1b
6. Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Predelava M110 Aleksander Stare S56AL E mail s56a email si up on that channel If not you must either get a tune up PROM programmed to f or program the tune up frequency f_ into the radio EZ models only EV models contain a preprogrammed tune up channel accessed by temporarily shorting the TEST pins on the command board Set the channel selector switch to the channel of the tune up frequency as determined in step 1 above Connect a two ohm resistive load across Pin 4 of J5 hot lead and Pin 5 of J5 ground lead Monitor the audio output across this load resistor Preset the slugs of L1 through L7 for fine flush with the circuit board Connect a dc voltmeter from the local oscillator test point LO to ground Peak the injection filter coils L6 L5 and L7 in that order for maximum dc voltage typically between 2 1 and 3 5 VDC Repeat until you cannot make the dc voltage increase any farther Connect an RF signal generator to the antenna connector and adjust it to generate an unmodulated on channel signal strong enough to quiet receiver Connect an ac voltmeter with bandwidth of at least 500 Hz an HP331A distortion analyser from the IF test point to ground Increase the RF generator output until the ac voltmeter indicates approximately 30 mV Adjust the RF filter coils L1 L3 L4 and L5 until the voltmeter peaks Reduce the generato
7. d MBTX o D uf uk 5V Ju WW CIRI DC vi d MBRX T6L J LI R25 sl d DISRX SUBE SEES J eC ce SUB LB H Pien L d d PLLDT ow T4 L PLLCK T LDDIS Slika 4a Montazni nacrt SMD komopnente Za povezavo z obstojecim vezjem M110 je uporabljena prikljucna letvica Na tiskanino zgrajenega modula prispajkamo nien moski del enski del pa s priklju nimi icami ustrezno pove emo z elektri nim vezjem M110 Modul tako lahko po potrebi hitro zamenjamo ali odstranimo Fotografija izdelanega modula je prikazana na sliki 5 Pred vgradnjo modula v radijsko postajo je potrebno le to ustrezno pripraviti Najbolje da nepredelanemu TRX vprogramiramo v razpolo ljivih 9 kanalov 9 radioamaterskih frekvenc im bolj enakomerno razporejenih Predelava M110 7 W MA iza n F IF a V ri ii 8B ZU IN A 4 acr E A 4 4 d P Mm WM d ZS v d H Z UH H 4 T 4 Darko Volk Ka i e 15 6215 D E I nari wnlly encinm COA F E mail darko volkOSsiol com Predelava M110 Aleksander Stare S56AL H RES ee en Oe S E E mail s56a email si C25 C22 Slika 4b Monta ni nacrt o i ene komponente med 144 MHz in 146 MHz Zatem poglasimo vsa LC sita sprejemnika nihajne kroge oddajnika ter nastavimo obmo je pokrivanja TX in RX VCO Pri tem si pomagamo s servisnim priro nikom ali pa prepustimo ta del predelave kateremu od za to usposobljenih serviserjev Koncentrirana navodila za uglasitev s
8. remember which one was where Unplug the connector that connects the TX power amplifier to the board The board removes easier if the two screws that hold TX power amplifier at the back of Predelava M110 12 HAM Asien ee Predelava M110 Darko Volk Kacice 15 6215 Divaca Slovenia Aleksander Stare S56AL E mail darko volk siol com E mail s56alGemail si the transceiver are slightly untightened and 15 of the 15 pin DB15 connector The main processor board is connected Cut this two pins approx at the middle to the PLL RF board at the other chassis figure 8 arrow 8 figure 9 Later four side with a fairly strong header GENTLY wires will be soldered to this two pins at pull the board together with the header both display and main board sides from its place with the help of a wider screwdriver without sharp edges or 10 Insert the built module to its place figure better with a suitable wooden or plastic 10 Connect the header at the module tool inserted between the board and PCB to the main board with 14 wires as metal chassis as close to the header as specified in the table possible 11 Isolate the inner side of the aluminium 7 On the bottom side of the main processor housing top cover at the place where the board locate three 4 7 kOhm resistors module is inserted with a paper or similar connected to the 2nd 3rd and 4th pin of isolating means Scotch tape the header and remove them see figure 7
9. the PLL PLLCK vry board figure 8 arrow CK LDDIS Parallel to the pin 16 of the CA3081 figure 8 arrow 3 Connection of the module to the M110 5 PCB and screw it down load and to the power supply Connect the loudspeaker and the microphone 8 On the top side of the main processor board locate the trace from JU805 and 13 Turn the transceiver on The operating cut it figure 8 arrow 1 frequency should be displayed and the yellow LED should light If the transceiver 9 The UART communication connection responds when the keys are pressed try between the main and display unit to press the mic PTT key The red LED microcontrollers leads through the pins 8 should come on and the transmitter Predelava M110 13 HAM Asien i Predelava M110 Darko Volk Kacice 15 6215 Divaca Slovenia Aleksander Stare S56AL E mail darko volk siol com E mail s56a email si Slika 11b Fotografiji predelanega TRX prikaz napetosti napajanja in frekvence should transmit 14 The modified transceiver is ready for it s first OSO figure 11 Za konec Kot sem omenil e v uvodu sva projekt predelave izpeljala skupaj z Benom S56KZN Beno je prevzel aktivnosti programiranja in ugla evanja M110 moja naloga pa je bila razvoj izdelava in programiranje mikrokontrolerskega modula Benu hvala tudi za pomo pri pripravi slikovnega gradiva in navodil za ugla evanje Priloge 1 Koncentrirana navodila
10. 5 konektorja priklju ka 8 in 15 Obe povezavi 8 in 15 DB15 konektorja i I I I I T 1 I I U Jj 4 I I LIE ei S E i Ej Slika 8 Kontrolerska plosca TRX gornja stran s tiskanino s primernimi Scipalkami prere emo pribli no na sredini slika 8 pu ica 2 in slika 9 Kasneje bomo na vsakega od tako dobljenih 4 strcljev prispajkali priklju no ico za povezavo z na im modulom 10 Zgrajen dodatni modul za modifikacijo 11 M110 namestimo na svoje mesto v ohi ju slika 10 ter ga pove emo z ustreznimi priklju nimi to kami elektri nega vezja M110 kot je to opisano v tabeli Pokrov ohi ja M110 oblepimo z notranje strani na mestu kjer se nahaja na dodatni modul s tankim kartonom ali primerno debelo folijo iz umetne mase da modul ne pride v stik s pokrovom Modula ni potrebno pritrjevati ker je prostora v ohi ju ravno toliko da modul Predelava M110 10 Predelava M110 Darko Volk Kacice 15 6215 Divaca Slovenia Aleksander Stare S56AL E mail E mail lepo sedi na svojem mestu Bolj dosledni prikazno enoto nazaj na svoje mesto ter pa ga lahko s kapljico silikonskega kita privijemo z vijakoma ali dvostranskim selotejpom prilepijo na hrbet mikrokontrolerja 13 Povezemo TRX z napajanjem prikljucimo anteno ali umetno breme mikrofon ter 12 Namestimo pokrov ohi ja in snemljivo zvo nik 14 Po vklopu se mora na prikazu izpisati delovna frekvenca
11. AM Asien ee Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com EMERG DISABLE JU710 le o f 1 ks Li Pa d ze ze te E A Sinai A x i i i i l 4 bw ER L L L kb kb L L Figure b Alignment point on RF board Note Adjust the transmitter VCO and reference oscillator before aligning the receiver 1 5 1 Receiver VCO Connect a high impedance 11 MegaOhms or greater dc voltmeter from steering line test point SL to ground Radios with more then one receive frequency Select the channel with highest receive frequency Adjust the receiver VCO coil L201 until the voltage meters reads 7 0 VDC Select the channel with the lowest receive frequency and verify that test frequency is at least 2 5 VDC Aleksander Stare S56AL E mail s56a email si osa cima CS k Ca Receiver Find the tune up frequency f as follows tune a On single channel radios and mult channel radios with a single receive frequency f tune receive On multi channel radios that have a receive bandwidth of two MHz or less f tune channel frequency of highest frequency On multi channel radios that have a receive bandwidth greater than two MHz but less than or equal to four MHz find f where Je s Me ne mo 2 If one of the radio channels has a frequency within 500 kHz of f perform the tune Predelava M110 18 HAM Asien ee Darko Volk
12. EI 8d e AG doo xe so ss TE a ar a v aum cd E CC 0 i MOSL 15 FLA d ALP ki Lal i 0c9 L ACL LO GJ 401 9uo ZHOS L LLO ARa czo 89 ecco LL o euo 9IBJJ9JU CAC OLY 62 Sulu eul ue y JCT N3TId AO TId jo4ju0 T1d 8S8LGSt LOIN Slika 2 Vezalni nacrt modula Predelava M110 6 HAM Asien i Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com gredo nogice elementov ki niso povezane z maso je potrebno na strani mase rahlo povrtati s svedrom premera 5mm do 8mm odstraniti bakreno povrsino da nogice ne pridejo v stik s povrsino mase Nogice elementov ki so priklju ene na maso se spajkajo z obeh strani vezja Prostora za vi je elemente je v ohi ju M110 malo zato je pred monta o napetostnega regulatorja 7805 le temu potrebno z agico za nekaj mm Predelava M110 Aleksander Stare S56AL E mail s56alGemail si skraj ati pritrdilni del ohi ja TO220 tam kjer ima luknjo Regulator se montira v le e em polo aju na tiskanino ga najla je u vrstimo tako da gornji rob ohi ja na mestu kjer smo ga odrezali prispajkamo na povr ino mase tiskanine Kvarc kristal je prispajkan le e nad napetostnim regulatorjem 7805 Ohi je kvarca je smiselno elektri no povezati z maso tiskanine e ons 5 O 0000 m TP1 FRE tt 412V 7 E UU en ot eat SE RI4 1 TL NFOBL B R8 Li MMIT R9 Rig t T1750 L o C12 p R15
13. HAM Asien ee Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Predelava M110 Aleksander Stare S56AL E mail s56alGemail si Predelava 2m FM TRX Motorola RADIUS M110 Turn a professional 2m VHF FM PMR transceiver Motorola Radius M110 into an amateur radio OPOZORILO Modifikacije opisane v tem prispevku naj izvaja le za to usposobljen in tehni no ustrezno opremljen strokovnjak Avtor prispevka ne prevzema nikakr ne odgovornosti za morebitne okvare ter kakr nokoli drugo kodo ki bi nastala kot posledica implementacije opisane predelave WARNING All modifications described in this article are performed to your own risk Author can not overtake any responsibility of any sort of the possible damages that would result from unskilfully performed modifications described here V zadnjem asu so nekateri profesionalni uporabniki VHF mobilnih komunikacij dali v odpis pomembno tevilo FM radijskih postaj Motorola Radius M110 v nadaljevanju besedila M110 S kolegom Benom S56KZN sva sklenila poiskati na in kako to simpati no 9 kanalno profesionalno radijsko postajo predelati v napravo ki bo pokrila celotno 2m frekven no podro je in bo prilagojena amaterskemu na inu dela M110 je mobilna FM radijska postaja proizvedena v Evropi Motorola GmbH in tako na stari celini dokaj raz irjena Dobavljiva je bila v ve razli icah V tem prispevku bo govora o 10W razli ici predvideni z
14. a delo na VHF obmo ju 136 do 174 MHz The PMR VHF transceiver Motorola Radius M110 in further text referred as M110 was manufactured by Motorola GmbH therefore being an European radio Since many professional PMR radio service users has replaced this transceiver with newer gear a considerable number of M110 has appeared on HAM flea markets M110 is a simple yet fine transceiver with pretty good receiving performance and it would be a waste to throw it away or to use it just as a source of electronic components instead of giving it a new life in the HAM shack V svoji izvorni profesionalni izvedbi je M110 predvidena za delo na do 9 simpleksnih ali dupleksnih kanalih Nihajni krogi VCOjev in LC sit se ne nastavljajo programsko tako da je pri preprogramiranju frekvence ki pripada posameznemu kanalu skoraj vedno potrebna tudi hardverska nastavitev oz uglasitev le teh Razlika med najvi jo in najni jo frekvenco na kateri RTX lahko deluje je tako vsega nekaj MHz kar pa za pokrivanje amaterskega 2m frekven nega obsega ne predstavlja ovire Po predelavi v amaterski radio podpira M110 naslednjo funkcionalnost e pokrivanje frekven nega obmo ja 144 000 0 MHz do 145 987 5 MHz e korak nastavitve frekvence 12 5 kHz 25 kHz ali 100 kHz e dupleksni 600 kHz in inverzni dupleksni 600 kHz repetitorski na in dela e generator tona 1750 Hz e avtomatski vklop izklop repetitorskega odmika pri spremembi frekvence kasn
15. aj o i ko s skozno povezavo via ozna eno z R slika 8 pu ica 4 s priklju kom 3 konektorja DB15 s kratkosti nikom JU805 s priklju kom 2 konektorja DB15 s prerezanim priklju kom 8 konektorja DB15 na strani glavne kontrolerske plo e ostane nepovezan vir napajalne napetosti 5V za splo no uporabo s prerezanim priklju kom 15 konektorja DB15 na strani glavne kontrolerske plo e s prerezanim priklju kom 8 konektorja DB15 na strani konektorja povezava s DISRX i prikazno enoto s prerezanim priklju kom 15 konektorja DB15 na strani konektorja povezava DISTX i i s prikazno enoto z eblji kom 2 11 polne priklju ne letvice slika 8 pu ica EN z eblji kom 3 11 polne priklju ne letvice slika 8 pu ica DT z eblji kom 4 11 polne priklju ne letvice slika 8 pu ica CK LDDIS z nogico 16 integriranega vezja CA3081 slika 8 pu ica 3 Tabela povezava vgrajenega modula z elektri nim vezjem M110 arrow 2 and replace it with short circuit or another resistor with value lt 1 Ohm This would allow you to control the speaker audio level with the potentiometer down to zero Put the plastic cover back to it s place on the display unit On the main processor board locate and unscrew 9 screws that hold this board in place Two are at the side of the housing chassis holding the power transistors heat sink attached to the chassis The screws are of different lengths so
16. ava M110 Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Aleksander Stare S56AL E mail s56a email si Date See ee ae tacio Pype VAF A 25 05 Model M110 Select 5 VHF high 146 25 0 kHz channel spacing Low power RF PA Channel Information Time out timer Tone system ZVEI Encode sequence A D Decoder code Auto reset with carrier over Auto Acknowledge delay Encoder Pretime Intersequence delay Extended first tone duration Motorola RADIUS M110 Field Programmer Print Out Page 1 i Boe Be Piel Brog Vers ROE OCTO USER COMMENT PROGRAMM RADIO THIS WAY BEFORE MODIFICATION Serial Number 186aaa0000 2 274 MHz Refer to table s below Rekey timer Timeout 255 sec Rekey sec Encoder tone duration 70 msec A B ae D Decode pluli Groupcall GEA ENE A ride 2 sec O msec 141 msec 141 msec Encoder 600 msec Decoder 550 msec RF Frequency Table NOTE RF frequencies marked Ch Receive No Freq MHz 1 7115 DUGU 145 00007 Se ective Call Table Ch PL Encode No Hz C CL CO CCS VW 1 END of RADIUS Transmit Cik Transmit Freq MHz Sft admit t Ee ccc NO MONITOR ME ar e e ei e E PTT sequence sequence I E M110 Field Programmer Print with do NOT match the subband range Monitor d mE ESSE NO Auto Ack Decoder sequence enable LM C M m mA ee cq YES O
17. e keyboard and display unit is illustrated on the picture 1 he new hardware unit inserted in the communication path between main and display unit should therefore provide two UART interfaces one serial synchronous peripheral interface SPI to control the PLL chip and some additional stuff to produce man machine interface tones key clicks and 1750 repeater tone The new developed unit is based on a single chip PIC16F876 microcontroller This controller has only one hardware UART interface so the 2nd one is implemented in software PIC16F876 supports also only one interrupt priority level That is why a pretty high system clock oscillator frequency of 19 66 MHz was chosen to keep the generated 1750Hz repeater tone Predelava M110 Aleksander Stare S56AL E mail s56alGemail si fairly clean Otherwise the module could operate at much lower oscillator frequency like 4 9152MHz The module is built on a double sided PCB figure 3 4 one side of the board serves as a ground Most of the implemented components are SMD This allows the installation of the module in the bottom compartment inside of the M110 housing Tiskanina je dobavljiva pri avtorju S56AL e 95 2mm Slika 3 Izgled tiskanega vezja Gradnja modula Elektri no vezje dodatnega modula potrebnega za predelavo je zasnovano na mikrokontrolerju PIC16F876 Vezalni na rt je prikazan na sliki 2 Vezje je zgrajeno na dvostranskem tiskanem ve
18. e nahajajo tudi v prilogi 1 tega prispevka Ko TRX v svoji originalni izvedbi lepo deluje na vseh devetih kanalih znotraj amaterskega 2m obsega ga preprogramiramo na nastavitve s katerimi bo postaja delovala po predelavi priloga 2 Izpis nastavitev je v izpis iz programa za PC ki slu i programiranju TRX A d pm ZLILZLULDEDLLEL E ELLE LL IM P sd an 7 j mf Slika 5 Fotografiji izdelanega modula Preparation for the hardvare upgrade Before the modification is performed it is strongly recommended to program the 9 existing channels of the original M110 to amateur frequencies equally spread over the complete 2m HAM band and carefully tune the RX VCO TX VCO as well as RX and TX resonant circuits as described in the service manual At the end of this article there are also concentrated alignment instructions prepared by Beno S56KZN attachment 1 After this is being done and transceiver is being radically tested specially with the frequencies at the both band edges reprogram the transceiver with the parameters needed to run the modified radio see attachment 2 Namestitev modula v TRX Ko je M110 ustrezno pripravljen lahko pristopimo k modifikacijam elektri nega vezja ter vgradnji dodatnega modula Postopek modifikacije je sestavljen iz korakov opisanih v to kah 1 do 15 1 Odvijemo vijaka ki dr ita prikazno enoto M110 pritrjeno na ohi je in jo odstranimo Snamemo tudi aluminijasti pokrov
19. eje mozen rocni preklop e prikaz delovne frekvence s sedmimi ciframi v obliki npr 145 787 5 e pomnenje zadnje nastavljene delovne frekvence in koraka po izklopu napajalne napetosti e nadomestitev originalnih sluh uni ujo ih klikov pri pritisku na tipke z u esom prijaznej imi e meritev in prikaz napetosti napajanja z lo ljivostjo 0 1V Radiofrekven ne zna ilnosti predelane M110 glede na izvorno izvedbo so po predelavi nespremenjene poraba TRX se pove a za pribli no 20mA Predelava M110 1 HAM Asien ee Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Predelava M110 Aleksander Stare S56AL E mail s56alGemail si The modification described in this article is not just a reprogramming of the existing 9 channels of the M110 to HAM freguencies It is a hardware upgrade that will turn the PMR transceiver into a full featured HAM transceiver After the modification has been performed the transceiver supports following functionality e Coverage of the complete European 2m HAM band 144 000 0 kHz 145 987 5 kHz e Available tuning steps 12 5kHz 25kHz and 100 kHz e Repeater 600 kHz and inverse repeater 600 kHz operation e 1750 Hz repeater tone e Automatic setting of the repeater offset when the frequency is changed later it can be manually switched to the inverse repeater repeater or simplex mode e Display of the operating frequency in a 7 digit
20. erify that all channels all high power channels in MAB889 produce at least 1 0 10 0 or 25 0 watts as appropriate for MAUO MAU2 and MAU3 models Verify that no channels produces more than 6 0 watts for MAU1 models If the radio has option MAB889 slaved RF power level select any low power channel Key the radio and adjust R455 for an output power of 1 0 watt or other specified power setting for MAU1 and MAU2 models Verify that the RF power output on all low power channels is between 0 7 and 1 4 watts Readjust R455 slightly if necessary For MAUO models adjust R455 for an output power of 0 1 watt or some other specified power level Verify that RF power output on all low power channels is between 70 and 140 mW TO ADJUST THE REFERENCE OSCILATOR Connect the radio antenna output to an accurate frequency counter through a Suitable attenuator Select any transmit channel Key the radio and adjust L151 all models except those with 2 ppm stability or R163 models with 2 ppm stability until the exact transmit frequency 100 Hz appears on the counter Check all transmit channels to verify that the correct transmit frequencies have been programmed TO ADJUST THE DEVIATION Connect the radio antenna output to a modulation analyser or test receiver through a suitable attenuator Predelava M110 16 HAM Zecz eer Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com TF di E i z D EN
21. given in sections 1 4 1 5 1 6 and 1 8 Thefollowing test equipmentis recommended for aligning and servicing the MC micro radio R2001D Communication System Analyser Or R2200B Service Monitor GTF180A Mobile test set with GTF244A Adapter cable for MC micro PFT4053A Psophometric filter FTP3005B Select 5 test unit not required with R2001D R1001B Power supply or S1347D Power supply for radios with 10 watts or less power R1037 Digital multimeter or R1024B Digital multimeter TO ADJUST THE TRANSMITER Preset the following pots HI PWR R453 Fully CCW LO PWR R455 Fully CCW VOLT LIMIT R463 Fully CW Adjust the radios dc supply voltage to 13 2 0 1 VDC 12 6 VDC for MAUI six watt model Select the channel with highest transmit frequency Connect the radio antenna output to an accurate RF power meter that provides a 50 ohm load Connect a dc voltmeter from the steering line test point SL to ground Meter impedance should be 11 MegaOhms or more Key the radio and adjust coil L210 until the voltage reads 7 0 VDC Select the channel with the lowest transmit frequency Key the radio and verify that dc voltage is at least 2 5 VDC Predelava M110 15 HAM Asien ee Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Predelava M110 Aleksander Stare S56AL E mail s56a email si Select any transmit channel If radio has the MAB889 slaved RF power optio
22. i odvijemo 9 vijakov ki dr ijo plo o pritrjeno na asijo Dva se nahajata na stranici asije Z njima je pritrjeno hladilo mo nostnih tranzistorjev NF oja evalnika Vijaki so Ci n EL amp sesa WM fae Ca ka Le ewe C P Slika 7 Kontrolerska plosca TRX stran s SMD elementi tiskanino previdno odmaknemo od Sasije da se prikljucna letvica iztakne iz lezisca na tiskanini na nasprotni strani Sasije 7 Na kontrolerski plosci na strani s SMD elementi poi emo tri upore 4 7 kOhm slika 7 ter jih odstranimo Upori povezujejo zebljicke 2 3 in 4 priklju ne letvice s procesorskim krmiljem Z TE K und m Predelava M110 9 HAM Asien i Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Aleksander Stare S56AL E mail s56a email si odstranitvijo uporov smo od glavnega mikrokontrolerja odklopili PLL vezje ki se nahaja na tiskanini na nasprotni strani Sasije Kontrolersko plosco namestimo in privijemo nazaj na Sasijo M110 Na gornji strani kontrolerske plo e poi emo vezico do kratkosti nika JU805 ter jo prekinemo slika 8 pu ica 1 To storimo tako da bakreno vezico s skalpelom ali drugim ostrim rezilom dvakrat pre no prere emo na razdalji ca 1mm in pogrejemo s spajkalnikom da 1mm dolgi ko ek vezice odstopi Komunikacijsko vodilo UART ki povezuje glavni procesor ter procesor snemljive prikazne enote poteka prek DB1
23. jivost popolnega na rta elektri nega vezja kajti mikrokontroler centralne enote krmilni poleg v prej njem odstavku na tetih e celo mno ico drugih analognih in digitalnih podsklopov M110 Ni od navedenega z Benom al nisva imela na razpolago Poleg tega je 6301 relativno star mikrokontroler s programom zape enim v internem P ROM in bi bilo za razvoj programa br kone potrebno imeti razmeroma drag emulator Kolikor mi je znano ti mikrokontrolerji ne obstajajo v bolj sodobnih razli icah z EEPROM ali FLASH programskim spominom tako da razvoj programske kode s cenenimi sredstvi ni mo en Po kraj em premisleku je tako padla odlo itev za manj elegantno a zato z razumnimi sredstvi izvedljivo predelavo Ta je obsegala analizo komunikacije med mikrokontrolerjema centralne krmilne enote in prikazne enote prekinitev komunikacije ter vstavitev dodatnega modula ki opravlja slede e naloge e sprejema iz mikrokontrolerja centralne krmilne enote ukaze za krmiljenje prikaza ter ga hkrati preslepi da ta e vedno misli da komunicira z mikrokontrolerjem prikazne enote e sprejema ukaze uporabnika tipke PTT e izpisuje na obstoje i 7 segmentni LCD prikaz delovno frekvenco in pri iga signalne lu ke e krmili PLL VCOja e opravlja e nekatere druge za razumevanje Predelava M110 2 HAM Asien ee Predelava M110 Darko Volk Kacice 15 6215 Divaca Slovenia Aleksander Stare S56AL E mail darko volk siol com
24. mode for example 145 787 5 e Memorising of the latest set frequency and tuning step during power down e Replacement of the ears breaking key clicks with a more gentle click tones and elimination of the strokes when squelch opens closes e Measurement and display of the supply voltage with the resolution of 0 1V e RF characteristics of the transceiver are kept unchanged Zasnova predelave Vodilo pri nacrtovanju predelave je bilo uporabiti im vec ze obstoje ih podsklopov M110 S stali a predelave v amaterski radio so najpomembnej i naslednji podsklopi e centralna krmilna enota ki nadzira delovanje celotne naprave in je zgrajena okoli 8 bitnega mikrokontrolerja HD63A01 e PLL krmilje s centralno enoto je povezano s sinhronim vodilom SPI e snemljiva prikazna enota s tipkovnico Snemljiva prikazna enota tima lasten mikrokontroler Njegova naloga je krmiljenje 7 segmentnih LCD prikazov signalnih lu k LED ter branje tipk Z mikrokontrolerjem centralne krmilne enote komunicira po asihronem serijskem vodilu UART s 7 bitno besedo enim paritetnim bitom po enim stop in start bitom ter hitrostjo 1200 bit s Najelegantnej i na in pristopa k predelavi bi gotovo bila modifikacija obstoje e programske kode mikrokontrolerja 6301 ali izdelava nove programske kode v celoti V tem primeru poseg v samo elektri no vezje ne bi bil potreben pogoj pa bi seveda bil razpolo ljivost izvorne programske kode ter razpolo l
25. n select any high power transmit channel Key the radio and adjust R453 HI PWR for Model number Power setting MAUO 1 0 W MAU1 6 0 W MAU2 10 0 W MAU3 25 0 W Switch through all channels all high power channels for MAB889 On each channel key the radio and note the power output For MAUO MAU2 and MAUS models note that channel that gives the minimum power output for MAU1 models note the channels that gives the maximum power output If more than one channels gives the same maximum or minimum power chose any one of those channels Switch through all transmit channels all high power channels for MAB889 On each channel key the radio while watching the dc voltage at Pin 4 of connector P6 or at test point CV on the command board Record the number of the channel that gives the greatest voltage and what voltage is If more than one channel gives the same maximum voltage chose any of those channels If it is greater than 10 0 VDC go to step 14 if not go to step 12 On the channel that step 11 shoved to have the highest dc voltage turn R463 fully CCW Turn R453 fully CW Key the radio Adjust the voltage limit pot R463 for a dc voltage 2 0 higher than voltage level recorded in step 11 as measured at Pin 4 of P6 or at test point CV Set the channel selector to the channel that was noted in step 10 Key the radio and adjust R453 for Model number Power setting MAUO 1 1 W MAU1 5 6 W MAU2 10 7 W MAU3 26 8 W V
26. ohi ja TRX 2 Odstranimo plasti ni pokrov s hrbtne strani prikazne enote Pokrov je u vr en v le i u z gumijastim tesnilom Predelava M110 8 HAM Ae Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Aleksander Stare S56AL E mail s56a email si razli ne dol ine zato si ozna imo kje je 3 Na tiskanini prikazne enote poi emo bil kateri privit Popustimo tudi dva vijaka upor 820 Ohm slika 6 pu ica 1 in ga odstranimo S tem izklju imo preglasne klike ob pritisku na tipko ki jih generira procesor prikaze enote Na tiskanini prikazne enote poi emo upor 10 Ohm slika 6 pu ica 2 in ga premostimo z i ko ali nadomestimo z uporom vrednosti 1 Ohm ali manj S tem omogo imo regulacijo glasnosti sprejemanega signala v zvo niku do ni le s katerima je izhodna stopnja TX pritrjena na hrbtno stran asije Odklopimo konektor ki povezuje izhodno stopnjo TX z glavno kontrolersko plo o Kontrolersko plo o snamemo Kontrolerska plo a je s tiskanino na drugi strani asije povezana prek mo nej e priklju ne letvice z 11 kontakti Najla je jo snamemo tako da porinemo med tiskano vezje kontrolerske plo e in asijo primerno trdo leseno ali plasti no letvico Z njeno pomo jo v neposredni bli ini priklju ne letvice Slika 6 Tiskano vezje prikazne enote Plasti ni pokrov prikazne enote vrnemo na svoje mesto Na glavni kontrolerski plo
27. r s RF level as necessary to maintain approximately 30 mV RMS on the meter during this process Repeat the adjustment until you can get no further increase in voltage Set the RF level of the generator 1 mV Modulate it with 1 kHz at 60 of full system deviation Full system deviation for channel spacing of 25 kHz is 5 kHz for 20 kHz 4 kHz for 12 5 kHz 2 5 kHz Adjust the volume control to get an audio level of about one volt RMS across the 2 ohm load Slowly peak the quad coil L54 for maximum audio output Adjust the squelch as follow Preset the squelch control R59 CCW Apply an on channel RF signal at a level of one mV Modulate with a one kHz tone at 60 of full system deviation Adjust the volume control for 1 7 volts RMS across the two ohm load Reduce the RF level until the CCITT weighted SINAD is 10 dB Enable the carrier squelch mode with the front panel switch Slowly turn the squelch control CW until the audio is squelched muted then very slowly turn CCW until the radio just unsquelches unmutes to zero Reduce the generator RF level slowly increase the level until the radio just unsquelches and verify that the CCITT weighted SINAD at this RF level is between 8 and 12 dB SINAD Readjust R59 slightly if necessary TO B PIN amp OR TO T1001 PIN 4 TO B PIN 2 OR TO 001 PIN 5j Figure c Connecting audio oscilator to microphone Predelava M110 19 HAM Asien ee Predel
28. ut Predelava M110 20
29. za uglasitev Motorola Radius M110 avtor Beno S56KZN 2 Programski parametri za predelavo Predelava M110 14 HAM Asien ee Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com Predelava M110 Aleksander Stare S56AL E mail s56a email si Koncentrirana navodila za uglasitev Motorola Radius M110 Beno S56KZN Concentrated instructions for Alignment of Motorola M110 MC micro VHF by Beno S56KZN WARNING This is a transcript from service manual there might be some typo errors in the text so the author can not overtake any responsibility of any sort of the possible damages to your radio ALIGNMENT Note Key the radio while making adjustments or measurements GENERAL Perform all adjustments at a supply voltage 13 2 0 1 volts dc unless the instruction call for a different voltage Interpret instruction to turn controls clockwise CW or counterclockwise CCW to mean as viewed from the component side of the circuit board Picture A and B show the locations of the components When you perform any of the tune up procedures given in sections 1 2 1 3 1 4 and 1 5 the radio must be completely assembled except for the chassis cover top cover of the synthesizer compartment and the radio sleeve When you have completed the tune up install the synthesizer cover chassis cover and sleeve before testing the radio against specifications following the procedures
30. zju slika 3 kjer je ena stran tiskanine v celoti masa na drugi strani pa so povezave in spajkalne blazinice za SMD elemente Elementov s klasi nimi o i enimi priklju ki je malo vsi pa se nahajajo na tiskanini na strani mase Monta ni na rt je razviden s slike 4 Tiskano vezje je izdelano v doma i delavnici zato ni metalizirano Tiste luknjice skozi katere Predelava M110 5 Aleksander Stare S56AL Predelava M110 HAM ecz ercer Darko Volk Kacice 15 6215 Divaca Slovenia E mail darko volk siol com E mail s56al Qemail si LOS GOW LL 91ojeq ZOOz J equieAoN unjeg 9JE S V RJINIJSUOY OLLIN Snipes EJOJOJOJN YWd OlideMLJIpOo4w ez e zeA J8v3dv ec ia MOL 9H Buppolq Jeyidue Jv ACL sna L Lo rd MOL LO L dd Leid WEI izd S091 SIGESSIP J9P x20 7T1ld NAL Ch i MOL SCH yun Aejdsip sna Yu LUYN ed NAL oe Ces mee Sl vd MOL Mol i Ss Ms AOL i FH AS Cas yun Aejdsip XL 133v 301d uie w snd yu Lawn ca NAL C Le Eccl ERES L A AOL MOL sie LLY AOL I A 6LA AS d AS C xian 201d UJE XI LYN S p9O0P LOM ASt 0 LX JE z dg GS a N 9 40S i df zd H d zol al LM Laf x L 8c i SE Aa CA y D OBA L Lat 0 1 9 8J9l2ld LO T E I NAL AR C a PL Se ni ASA MOL oza MOL uee IZY 012 a AS CHA pe LA OBA T ZAZ 6H NAL d Zz ZL ie IBA PA AOL SLY SBA MOL CAC
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