Instruction/ maintenance manual of the product 21-1620 Radio Shack
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OWNER’S MANUAL Ca t. N o. 2 1-1 620 TRC-235 2 Watt 3- Channel CB W alkie-Talki e Pl ease r ead b efor e us i ng this equi pme nt. 21-1 62 0. fm Page 1 Thursda y, Au gust 5, 1999 11:16 AM.
2 FEATURES Your Radi oShack TRC-235 2 Watt 3- Channel CB Wal kie-Talki e is a portabl e, two- way rad io you can c arry almo st any- where. You can use your TRC-235 around the house , in your off ice, or in your car or bo at.
3 Power/Char ging Jac k — l ets yo u po w e r your TRC- 235 fro m an AC or DC power source, so y ou c an u se the TRC-235 wi th- out dr aini ng the batteri es. And, lets you charge ni ckel-c admium batteri es withou t removin g them from t he TRC-2 35.
4 Your TRC-235 might caus e TV or radi o int erference even when it i s operatin g proper ly. To det ermine whet her your TRC-235 is caus ing t he interf erence, turn off your T RC-235. I f t he i nterfer ence goes away, yo ur TRC-235 is c ausing i t.
5 CONTEN TS Po we rin g t h e C B ..... ... .. ..... .. ... ..... .. .. ... 6 Using the POWER Jack and ALKA LI N E/N I-C D Sw itc h.. .. ..... ... .. ..... 6 Usi ng Ba tte rie s .... .. ..... .. ... ..... .. ... .... ... 7 T est in g th e B at te ry P ow er .
6 POWERING THE CB You can power your TRC-235 from any of these s ources: • Eight AA alkal ine batteri es (not sup- pli ed) with two du m my batt eries (supp lied) • T en rechar geable AA ni ckel- .
7 •S e t i t t o ALKALINE b ef or e y o u c on- nect a n exter nal p ower sour ce (v ehi- cle bat tery power or AC ada pter) to th e POW ER jack or whil e you ar e us- ing i nter nal ba tteries (alkal ine or re - chargeab le).
8 Cautions : • A lwa ys us e f resh, o r freshl y cha rged , batter ies o f the requi red size and type. • Do not mix o ld and ne w batteries, different types of batteries (stan- dard , alkaline, or recharge able nicke l-cadmium ), or rec hargeable batter i es of dif f erent cap aci ties .
9 4. Be sure A LKALI NE/NI – CD insi de the ba tt ery co mp artm ent is s et to ALKA- LIN E . 5. Put eigh t AA alkalin e batterie s and the two supp lied dummy bat teries, o r ten AA nicke l-cadmi um batterie s into the batt ery compartm ent, as indi - cated by t he polar ity symbo ls (+ and –) marked insi de.
10 T e sting the Batt ery Power 1. Tur n on th e TR C -2 3 5 by r ot at i ng OFF/ VOLUM E c lo ck w i se u n t il it cl ick s. 2. Hold down BA TT TE S T . If th e ind ica - tor ligh ts, ther e is enough ba ttery power t o opera te the CB. If th e indi- cator is dim or does not l ight, repl ac e or recharg e the batte ries.
11 Foll ow t he se st eps t o ch arge nic kel- cadmium batter ies i n th e TRC-235 . 1. If t he TRC-235 is on, tu rn OFF/VOLUME fu ll y co unt erc lockw i se unti l it cl icks t o tur n it o ff. 2. Set ALKA L IN E/ NI – CD insi de the bat - tery c ompartment to NI – CD (see “U s- ing the Power Jack and Alk aline/NI - CD Swit ch” on Page 6).
12 4. When char ging is compl ete, unp lug the bat tery charger’ s plu g from th e AC outl et. Then, di sconnect the bat- ter y charger’s bar rel plug fr om the POWE R jack. Note: You can use an ex terna l char ger (such as C at. No. 23-13 4, n ot s up- plied) to rech arge the nicke l-ca dm i u m batt eries .
13 • W hen you finish using the TRC-2 35, unplug the fused cord f rom t he ci ga- rett e-light er soc ket befor e you dis- co nne ct it fr om yo ur T RC -23 5. 1. If the TRC- 235 is on, turn OFF/VOL - UME fully cou nte rcl ock wis e unt il it cli cks t o t urn i t o f f.
14 • T o help prevent an el ectrical shor t, unplu g the ad apter f rom th e AC out- let befor e you unpl ug the adapter fro m the TRC-235 . Foll ow thes e steps t o connec t th e TRC- 235 to AC power. 1. Connect the adapter’s 5.5 mm outer diamet er/2.
15 EXTER NAL AN TENNA Your wal kie-tal kie co mes with a tel escop- ing ant enna tha t is ideal for mos t applic a- tions . H owever , the walkie-t alkie’ s EXT ANTENNA ja ck makes it easy t o connec t other types of an tennas, too. Fo r mo bile or base sta tion use, you m ight want to connect an opti onal ex ternal ant enna.
16 • For the bes t per formance when yo u use an ext ernal ant enna, do not exten d the TRC-235’ s tel escopin g anten na. Foll ow the ins tall ation in struct ions sup- pli ed with t he anten na, ro ute th e antenn a cabl e to the TRC-235, then conne ct it t o the EX T ANTENNA ja ck.
17 OPE RATION Bef ore yo u use you r TRC -23 5, we re com- me nd you read “CB Ope rat io n Ti ps” on Pag e 20, wh ic h conta ins i nfo rmat ion to hel p you us e it ef fecti vel y and co urte ous ly. RECEIVING T RANSMISSIONS AND ADJUSTING SQUE LCH 1.
18 3. Turn on the TRC-23 5 by t urning OFF/ VOLUME clock wise unti l you he ar a cli ck and a hissi ng sou nd. No te: Y ou might not he ar a hiss ing sound i f CHANNE L i s set to B or C and you have n’t inst alle d any cr ys- tal s in channel posi tions B or C.
19 T RANSMITTING 1. Follo w Steps 1– 5 in “ Receiving Tr ansmissi ons an d Adjus ting Squelch” on Page 17. 2. Hold t he TRC-235 2 to 3 inches f rom your mou th. Hold down PUSH TO TA L K on t he side of the TRC- 235 and speak i n a normal v oice in to the microph one.
20 CB OPERA TI ON TIPS The foll owing tips will help you get th e mos t enj oym ent from your TRC- 235. COMMON USES FOR A CB RADIO Bu siness Use s • T ruck dr iver s and del ivery pe rsonnel can le arn road and tr aff ic conditi ons and get assist ance in l ocati ng desti- nati ons.
21 • Campi ng, fish ing, a nd other sp orts are more fun wi th a w alk ie-talk ie. Locate a f riend or find out “what ’s cookin g” back at camp. USING COMMON 10 - CO DES Citi zen’s band oper ators have lar gely adopted t he 10-codes f or standard ques - tions and answer s.
22 Note : Alth ough th is tabl e list s the 10- codes’ meanings i n the form of a stat e- ment , they ca n also b e phr ased as q ues- ti ons ( 10-6: Are you busy?, 10-2 0: W hat is your l ocati on?) . 10- 15 M ess age deli ve red . 10- 16 Repl y to me ssage .
23 CB COURTES Y • W ait for a pause in someon e else ’s transmi ssion be fore you ask for a break. • If you do not recei ve an answer to your cal l afte r a seco nd attempt , sign off and wai t seve ral mi nutes b efore tryi ng agai n. • Do not hol d down PUS H TO T AL K when you are not tal king.
24 ADDING CR YST ALS Your TRC-2 35 incl udes two cryst als (tr ans mit and recei ve) i ns tall ed in chan nel posi tion A. The c rys tals let you use t he CB on channel 14. You can add two mor e crys tals in c hannel po siti ons B and C s o you can use any two ot her cha nnels of the 40 allott ed to CBs.
25 Note : A cr yst al is mar k ed wi th its fr e- quency. Follo w these st eps to ch ange or i nstal l cryst als in you r TRC-235. 1. If t he TRC-23 5 is on, turn OFF/VOL- UME full y co unt erc lo ckwi se u nt il it clic ks to t urn it of f. 2. Remove the b atterie s (i f inst alled).
26 3. Set CHANNE L to A , sl ide your thumb under th e rig ht edge of CHANNE L , then car efu lly pull CHANNEL up t o rem ov e it . 4. Use a Phi lli ps s crew driver to remov e the back cover ’ s three scr ews. Cauti on: The BA TT TES T butto n might come o ff of the fr ont of th e TRC-235 when you remov e the front cover .
27 6. Insert a new mat ched pa ir of crystal s (send and rece ive) in to the sockets for Channel B or C. The sock ets for the cr ystal s are marked ne xt to Channel A on th e cir - cuit bo ard with X1 (r eceive) and X2 (tra nsmit). Th e channel ’s l etter ( A, B, or C) is mar ked on the circ uit board and on the diag ram below .
28 T ROUB LES H OOT IN G If y our TRC-235 i s not wor king as it shoul d, follow t hese suggest ions to see if you can el im inate the pr obl em. If yo u can- not, take i t to you r loc al RadioShack stor e for assi sta nce. Symptom Suggesti on W eak, b ad, or no rece p- ti on.
29 MAINTENANCE Your Radi oShack TRC-235 2 Watt 3 - Channel CB Wal kie-Talk ie is an exam ple of super ior desi gn and craf t s m anshi p. The foll owing suggest ions wi ll help y ou care for your TRC-235 so you ca n enjoy it fo r years. Keep t he TRC-235 dry.
30 SPECIFICATIONS Rec eiver Fr eque nc y C over age . .. 26 .9 65 – 27 .4 05 MH z Su pp lied wit h C h anne l 14 re ceiv e (2 6.67 0 MHz) a nd tr ansmi t (2 7. 125 MHz) c r ystal s in t he Ch anne l A pos iti on Sens itivi ty (M axim um) .... ......
31 NOTES 21- 16 20 .fm Pa g e 31 Thur s day , Au gu st 5, 19 99 11 :16 A M.
RadioSh ack A Divisi on of T andy Corporat ion Fort Wor th, T exas 76102 6A7 Pri nte d in C hi na Lim it ed Nine ty-Day W arr ant y This pr oduct is warra nted b y RadioSha ck a g ainst m anu- factur .
An important point after buying a device Radio Shack 21-1620 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Radio Shack 21-1620 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Radio Shack 21-1620 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Radio Shack 21-1620 you will learn all the available features of the product, as well as information on its operation. The information that you get Radio Shack 21-1620 will certainly help you make a decision on the purchase.
If you already are a holder of Radio Shack 21-1620, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Radio Shack 21-1620.
However, one of the most important roles played by the user manual is to help in solving problems with Radio Shack 21-1620. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Radio Shack 21-1620 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
