Tandy Radioshack Realistic PRO-2026, Service Manual

Page 1: ...12 Printed Circuit Boards 14 Wiring Diagram 17 Electrical Parts List 18 Disassembly Exploded View 34 Mechanical Parts List 35 IC and Transistor Voltage Chart 36 Semiconductor Lead Identification 38 S...

Page 2: ...ack Light 10 Digits and special Annunciator Bank 1 5 Police FIRE EMG AIR WX MRN SCAN MAN PGM MON UO PRI DLY SRCH T P Keys PROGRAM OPERATION Controls Switches Total1 set 12 keys 0 to 9 ENTER Total 16 k...

Page 3: ...5 30 Public Service Band at 860 0 MHz dB 33 25 Audio Frequency Response 6 dB at 155 0 MHz Low Hz 250 150 350 High Hz 2200 1500 3500 Audio Output Power at 155 0 MHz Max Output Power mW 1100 500 10 THD...

Page 4: ...of the error indicator Error or an incorrect indication of frequency Table 1 CH FREOUENCY CH FREOUENCY 1 30 05 MHz 14 66 450 MHz 2 40 84 MHz 15 76 825 MHz 3 49 90 MHz 16 87 425 MHz 4 138 15 MHz 17 157...

Page 5: ...Step Presetto Adjustment Remarks 1 CH 24 CT4 PLL adjustment Connect oscilloscope and frequency counter to TP1 R118 Adjust CT4 to 10 350000 0 00001 MHz 2 CH 25 CT6 Adjust CT6 to 10 349850 0 00001 MHz...

Page 6: ...nnect SG to ANT terminal 1 CH 9 L23 Connect osellloscopeor DC voltmeter to TP2 R52 Adjust L23 to 12 5 0 1 V 2 CH 7 8 No Alignment Check if vce is at each channel voltage Refer to Table 2 3 CH 4 5 6 No...

Page 7: ...ep Presetto Adjustment Remarks CH 2 Conneet SSG to ANT terminal 1 SG 40 84MHz L27 Conneet digital voltmeter to TP3 R132 1mV No Mod Adjust L27 to 2 0 0 05V OC CH 24 2 SG 911 5MHz CT4 Adjust CT4 slightl...

Page 8: ...cope Signal Generator S G S G Oscilloscope Set ANT J501 TO TP3 Alignment Procedure De Power Supply 12 0V Step Preset to Adjustment Remarks ca 12 Adjust L9 to AF output maximum reading on SG 127 175MHz...

Page 9: ...udio output terminal 1 SG 162 4MHz Control Adjust volume control to 125mW O 4IlV FM 1 V across se resistor CH 5 Conneet SINAD meter to audio output terminal 2 SG 162 4MHz L16 L19 Adjust coils to the b...

Page 10: ...at 12dB SINAD sensitivityis less than 6 SG FM 1 01 V for each channel 7 CH 21 23 25 No Alignment Confirm that 12dB SINAD sensitivity is less than SG FM 1 01 V for each channel CH 10 11 12 13 Aircraft...

Page 11: ...G Set EXT SP 1 71 1 7 1 Jack C7 ANT J2 v J501 v ___v 1 1 DC Power Supply 1 7 11 1 9 L 12 0V Alignment Procedure Step Preset to Adjustment Remarks CH 2 SG 40 84MHz Turn VR1 fully counterclock wise S N...

Page 12: ...ctive IC201 and or associated circuit NO Defective Q205 206 207 208 209 NO Defective PLL circuit or IC201 Note While checkinq the above items the microprocessor might loek up if se turn power switch O...

Page 13: ...4 and or associated circuit Detective IC7 019 and or associated circuit YES YES YES NO NO Detective IC9 and or associated circuit Base Squelch Voltage Condition Q27 Open 0 Close 4 5 Audio Section Tab...

Page 14: ...Main PCB Top View PRINTED CIRCUIT BOARDS 14 l il...

Page 15: ...Main PCB Bottom View and Chip Parts Locations CANADA NLY 15...

Page 16: ...Control PCB Top Control PCB Bottom I M 3 I 11 W Oll0S1 VV i 8 H d I Oi S 16...

Page 17: ...IJ i B301 PH 133A A BOnD 1 1 VJEW BlK YEL r se 212 L11 HO LDER l CD M3 28152Z 7 SPSOl SP247 J I S D l D E R I N G SOLDERI Utf PCB SHJELO PL ATE HSDP425745 t u H ikJ lMM TO BDTTDM SliIElD CAS E M4 2S69...

Page 18: ...10 C B BCXJ81102SZ C004 100PF 50V 5 CG CH BCXG811014Z eees 33PF SOV S CG CH for CA BCXG813304Z coos 0 0011lF SOV 10 C B BCXJ81102SZ C007 33PF SOV 5 CG CH BCXG813304Z C008 3PF SOV 0 25 CH CJ BCBR813091...

Page 19: ...V 10 C B BCXJS1473SZ COSO Not Used COS1 Semi Conductor SR 0 011lF 2SV 10 BCGCS1103SZ COS2 Semi Conductor SR 0 011lF 2SV 10 BCGCS1103SZ COS3 0 0011lF SOV 10 C B BCXJ81102SZ COS4 0 0011lF SOV 10 C B BCX...

Page 20: ...F 50V 5 CG CH BCXG813904Z C098 0 0011lF 50V 10 C B BCXJ811025Z C099 0 0011lF 50V 10 C B BCXJ811025Z 6186 33PF 50V 5 CG CH tor CA BCXG813304Z C101 470PF 50V 5 CG CH BCXG814714Z 1OPF50V 0 5 CG CH tor CA...

Page 21: ...Not Used C146 47PF 50V 5 SL BCXH814704Z C147 0 00331lF 50V 10 C B BCXJ813325Z C148 Electrolytic 100llF 10V 20 C 130 BCAP111016Z C149 0 0011lF 50V 10 C B BCXJ811025Z C150 Not Used C151 18PF 50V 5 CG CH...

Page 22: ...11026Z C187 0 001JlF 50V 10 C B BCXJ811025Z C188 Electrolytic 100JlF 25V 20 C 130 BCAP511016Z C189 Electrolytic 47JlF 25V 20 C 130 BCAP514706Z C190 Not Used C191 Electrolytic 100JlF 25V 20 C 130 BCAP5...

Page 23: ...TR BOAY0400001 0037 Varicap 18V201 4 TRP BOAY0399001 0038 H8K110 TR BOAY0400001 0039 H8K110 TR BOAY0400001 0041 H8K110 TR BOAY0400001 0042 H8M88A8 TL BOAY0346001 0043 H8K120 TR Taping BOAY0393001 0044...

Page 24: ...028 LF 1495PNR 2736Z BLFY0149001 L029 Inductor Molded LZ 08747UH BLZY0087470 Transistors 0001 Silicon NPN DB 711 2SC3356 R24 T1B BDBC3356646 0002 Silicon NPN DB 717 2SC3704 Taping BDBC3704000 0003 Sil...

Page 25: ...012244Z R010 Not Used R011 330 ohm 1 1OW 5 Taping BRFC013314Z R012 100 ohm 1 1OW 5 Taping BRFC011014Z R013 22K ohm 1 1OW 5 Taping BRFC012234Z R014 330K ohm 1 10W 5 Taping BRFC013344Z R015 Not Used R01...

Page 26: ...1 10W 5 Taping BRFC011024Z R060 Not Used R061 100 ohm 1 10W 5 Taping BRFC011014Z R062 3 3K ohm 1 10W 5 Taping BRFC013324Z R063 47K ohm 1 10W 5 Taping BRFC014734Z R064 100 ohm 1 1OW 5 Taping BRFC011014...

Page 27: ...0K ohm 1 1OW 5 Taping BRFC011034Z R108 220K ohm 1110W 5 Taping BRFC012244Z R109 22K ohm 1 1OW 5 Taping BRFC012234Z R110 Not Used R111 15K ohm 1 10W 5 Taping BRFC011534Z H112 18K ohm 1 10W 5 Taping BRF...

Page 28: ...ohm 1 10W 5 Taping BRFC013304Z R155 Not Used R156 33K ohm 1 10W 5 Taping BRFC013334Z R157 Carbon Axial Lead 2 2 ohm 1 4W 5 BRFT142294Z R158 1 ohm 1 10W 5 Taping BRFC011094Z R159 39K ohm 1 10W 5 Taping...

Page 29: ...riabie RV 766 100KA 10 C l c BRVY0766001 WA001 DC Cord 5SMM WZ 463 1565 rt BWZY0463001 P001 PilotLamp PL 105 5V oL M5 BPLY0105001i CONTROL PCB ASSEMBLV REF DESCRIPTION RS MFR S NO PART NO PART NO ASSE...

Page 30: ...31lF 50V 20 C 156 BCAZ813396Z C127 Electrolytic 221lF 50V 20 C 128 BCAM812206Z C127 Electrolytic 221lF 50V 20 C 156 BCAZ812206Z C131 Electrolytic 11lF50V 20 C 128 BCAM811096Z C131 Electrolytic 11lF50...

Page 31: ...47j lF 25V 20 C 128 BCAM5147062 C193 Electrolytic 47j lF 25V 20 C 156 BCA25147062 D018 DCB010 TB BDAY0423002 D031 DCB010 TB BDAY0423002 D032 DCB010 TB BDAY0423002 D048 1N4003 BDAY0060003 D049 1N4003...

Page 32: ...0730001 0006 RL8135 TE11 BDAY0730001 0014 RL8135 TE11 BOAY0730001 0016 RL8135 TE11 BDAY0730001 0019 RL8135 TE11 BOAY0730001 0022 RL8135 TE11 BDAY0730001 0023 RL8135 TE11 BOAY0730001 0024 RL8135 TE11 B...

Page 33: ...e unit To Remov the Front Panel Pull out the two knobs from the front panel Remave the three screws from the chassis Pull the front panel out from the unit x2 2 _I IX2 I I I I I I Note Parts with refe...

Page 34: ...B420863A 20 ESD Plate ALP T 0 1 HSDP325724Z 21 Screw Bind HD M3X8 BNI SSCW193008B 22 Screw Taptight Bind HD M3X6 BNI SSCW343006B 23 Screw Taptight Bind HD M3X6 NI SSCW343006N 24 Screw Taptight Flat HD...

Page 35: ...1 0 6 I 7 8 4 9 9 2 8 10 2 1 11 0 12 2 4 13 2 5 IOX 14 SOClOSE 15 IX I 16 sec oss 17 0 18 2 1 8 1 0 2 2 0 3 1 0 4 0 5 2 0 6 3 0 7 0 8 4 9 IC Pin VLO VHI UHF 800 Remarks 9 1 0 7 2 0 6 3 0 4 0 5 4 9 6...

Page 36: ...79 0 6 1 0 0 8 19 E 0 205 E 4 9 4 9 80 4 6 2 0 0 C 2 2 C 0 4 7 3 0 3 9 B 0 7 B 4 9 0 IX 7 E 0 0 21 E saCLOS 206 E 4 9 4 9 C 0 3 2 C so ctos C 0 4 7 B 0 0 7 B SOCLOSE B 4 9 0 8 E 0 0 22 E 0 0 207 E 4 9...

Page 37: ...g i i POLICE FIREIEMG AIR WX MRN n n n 6 J J J J J J n 00 OCH II II u u II II 0 MHz SCAN MAN PGM MON LID PRI DLY SRCHY e HZM36NB A Ne c x188184 l l lJ TE85L A A CiA rxH8M88A8 ll lJTL A C 34 DL056 A K...

Page 38: ...14YK lOOK lOOK 7K R2n R209 G207 DTA114YK Q205 DTA114YK 8201 PH I32 N 2r i I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I g I J I U I I I I I I 10 o I u JO VHl VLO 4IR Control Sect...

Page 39: ...P J FARAD 4 ALL CAPACITORS TEMPERATURE CHARACTERISTICS ARE ZF UNLESS OTHERWISE NOTED 5 CHIP PARTS ARE NOT SPECIFIED IN THIS SCHEMATIC DIAGRAM PLEASE REFER TD THE PARTS LIST FOR THE CHIP PARTS 100 R201...

Page 40: ...GI8 2SAII62Y I I K t M RU _ Jt DIa 199184 TUNE RUI I Da HSIIIIOTR HSKI20TR torCAIl 5 Q t F o o 7 c o oo c o ellsRI cg o ollsR ces o oOt e c o oot e 1 c i Cl0 S I Cg I 33P C8 I Cll I ___ J I I I I fjl...

Page 41: ...S LIST FOR THE CHIP PARTS 5 lECTROLYTIC CAPACITOR SAPPROVAL NOS ARE C 130 UNLESS OTHERWISE NOTED 027 2SDI676 lN I003 I I I I 11 3 s ifc t Pi5 t 5 tV OWl l iiJBIt f 7 r I r f JfE tA7iIJJV L J ONLYfor C...

Page 42: ...GND 2 Output 3 Vee 4 Input IC3 LA1186N A1186N UUUVITU 16 8IT LATCH 16 8IT LATOt 17 BlT SHIFTREGISTER IC4 PLL2002A1 IC6 CA3140E T8sTROSE INV NPU 2 1 IN U 6 QUTPtJT v e 0fI SU NW TOPVIEW IC7 NJM3359D O...

Page 43: ...I L _ o IC8 NJM2904D IC9 TBA820M 8 mION 7 BOOTSTRAP 6 SUPPLY VOLTAGE GROUND 4 21 IC11 IR3M03A IC12 L78M05CV 1 3 2 INPUT OUTPUT GROUND S I1TCH COLLECTOR SWITCH 2 EMITTER TIMING 3 CONDENSER lpk DETECTO...

Page 44: ...3 COMl PIN 34 10 COM1 D13 CELLULAR SKIP L SKIP 1 1 0 U 37 SEG7 9 64 COM2 PIN 33 11 TEST TO VCC Iv 38 SEG8 LCD PIN 10 65 COM3 PIN 1 12 Xl TOGND 39 SEG9 11 66 COM4 PIN 2 13 X2 OPEN 40 SEG10 12 67 Vl OPE...

Page 45: ...RADIO SHACK A Division of Tandy Corporation Fort Worth Texas 76102 6A2 Publisher s Control Number UB220ZlXXSKXXX Printed in Japan...