Realistic PRO-2004 Service Manual Download Page 61 | Manualshive

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Summary of Contents for PRO-2004

Page 1: ...r i Y_ I 0 ro A Ai R ALIS 1 _ _ _ _ _ CUSTOM MANUFACTURED FOR RADIO SHACK A DIVISION OF TANDY CORPORATION _ J...

Page 2: ......

Page 3: ...eptance EIA R5 204 A Spurious Rejection at 328 MHz NFM Image Ratio at 70 MHz NFM 70 MHz 2x61 0 MHz 1290 MHz 150 kHz 300 kHz 8 kHz 40 dB 35dB 200 kHz 400 kHz 1 5 kHz 35 dB 25 dB IF Rejection 610 MHz at...

Page 4: ...r Source Speaker Dimensions Weight Any 300 channels in any band l ombination 30 channels x 10 banks and 10 Monitor channels Liquid crystal display Direct Key Entry Digital Controlled Synthesizer Super...

Page 5: ...12 1 1I1121 IC4 I Oll5 316 FILTER 2 11011 0301 308 014 38 40 VR802 03l 6 0 08 0l04 L t t J l__ IA I 4 U L tt l 1 311141 020 SOUND so AIlP 1W S 1f OET SWIT HING BurrER veO 3 M I lL I LFtLtf 1 04 U Q2 0...

Page 6: ...signal which is applied to WFM IF 012 or AM NFM IF 010 018 019 Corresponding with input from the keyboard CPU determines which of VCO 1 or VCO 2 WFM IF AM NFM AM IF Data of PLL circuit to be function...

Page 7: ...gain Press SPEEDI so that Scan speed is set to slow speed To call locked out channels press ILOCK GUT REVIEWI Press ISPEE DI so that SCan speed is set to fast This function is available when locked ou...

Page 8: ...indicated channel Search operation starts Key in the desired frequency in each channel as follows Key in the desired frequency with numeral keys Press IENTE RIto memorize the fre quency If wrong frequ...

Page 9: ...LINEAR PCB TP4 TP3 TP5 L I O SHIELO CASE SHIELO CASE 155 SHIELD CASE 1 0 il 113 T7 T3 CF 2 T2 TI2 Til TIO 9 TI O 00 0 IPC I I SHIELD CASE TP2 PLL PCB SHIELD CASE L311 L A t SHIELD CASE o rr i TP301 I...

Page 10: ...5 AM FM Signal Generator 25 to 1300 MHz 6 Distortion Meter NOTE 1 Use non metallic runing tools The test equipment and Receiver should be warmed up at least 30 minutes before proceeding with alignment...

Page 11: ...amming CH3 804 5 MHz Figure 1 TP301 UNIT UNOER TEST 1 DC SSVM Table 1 Figure 2 TP302 UNIT DCSSVM UNDER TEST T I Coil L309 L311 L317 Coil alignment open Coil alignment close Figure 3 Figure 4 Figure 5...

Page 12: ...low Figure 6 TP1 TP2 SIGNAL UNIT DCSSVM GENERATOR UNDER TEST I7 TP5 Control Setting Test Instrument Adjust Remarks Step Channel Programming Connection 4 OFF vOLUME control Connect Signal Tl3 Alignment...

Page 13: ...W Distortion Meter 8n AM 60 MOD at 1 kHz and Channel Programming Load to EXT SPK R 100 p V output CH6 120 MHz AM JACK 2 Adjust T7 to maximum sensitivity Figure 8 7 Same as step 6 Same as step 6 T8 Ali...

Page 14: ...ores become as high as those coil case SIGNAL GENERATOR ANT connector o II Figure 9 UNIT UNDER TEST EXT SPKA sn LOAD ACSSVM OSCILLOSCOPE Step Control Setting Test Instrument Adjust Remarks Channel Pro...

Page 15: ...ol 1 Select channel 7 800 495 MHz and Fully CCW set the Signal Generator frequency Channel Programming to 800 495 MHz CH9 800 495 MHz FM 3 kHz DEV at 1 kHz and CH10 800 500 MHz 1 IlV output 2 Adjust L...

Page 16: ...lIC3 Pin No 4 L H L NFM MOD To adjust el voltage receive signal in Manual mode and set T13 to obtain 3 8 V O l V at TP4 It is convenient to use the National Weather Service signal for the adjustment...

Page 17: ...P06 NOTE Use a signal at P01 of IC 503 as trigger and then observe the keys access pulse when IPROGRAM I key is pressed DATA WAVEFORM IC 503 I I I I I I I I I I I I I I I 1_ DISPLAY OATA l PLL DATA I...

Page 18: ...LL DATA WAVEFORM I 1 I nnnr Inl r ln JU CLOCK Pin 191 DATA Pin 201 I I k I I I 424 s 434 5 l LT I I I Pin 7 I I I I I 286 5 43445 LT 2 I I Pin 161 I NOTE Data in Program mode when 150 000 MHz entered...

Page 19: ...ated circuit OK NO Memorv function work OK YES Is voltage Regulator 1 IC503 and rese Is Back up battery OK Is IC701 OK OK properly END Is CPU control circuit Is RF filter select Is IC1 IC2 and or whic...

Page 20: ...MEMORY CHECK I I I Entwl _l l OOOO CHI i I S IdlO 0 _ _ 0raI _ l Ioo at T U I _ _ O N 1 1 0 0000 oQc Cf U 0111 _ WO 3 34 U 0 0 AC bL _ _ _ _ 3 n I I l owo s ON I l CH IViS Me DRY i I OK 20...

Page 21: ...it consists of 1C3 IC4 and 023 024 025 Replace the defective components 7 Defective Switching circuit consists of IC4 034 038 039 and 040 Replace the defective components IC503 is running wild Press R...

Page 22: ...Q502 67 99S0 MHz Replace the defective components 2 Defective B P F Replace the defective components lS Low sensitivity between 68 0000 to 1 Defective DECODER SWITCHING circuit consists of ICS01 QS03...

Page 23: ...2 and or VCO filter 2 circuit 760 0000 to 1300 0000 MHz Replace the defective components 24 All band do not operate but display 1 Defective PLL circuit IC301 IC302 IC303 IC304 and or associated is OK...

Page 24: ...p e BOARDS TOP BOTTOM VIEWS LINEAR P C BOARD TOP VIEW p TP f 24 TP4...

Page 25: ...LINEAR P C BOARD BOTTOM VIEW TP4 TPI...

Page 26: ...CPU P C BOARD TOP VIEW 26...

Page 27: ...CPU P C BOARD BOTTOM VIEW 27...

Page 28: ...PLL P C BOARD TOP VIEW TP301 _ 1 O lt r I f 28...

Page 29: ...PLL P C BOARD BOTTOM VIEW TP301 TF 3021 29...

Page 30: ...l _ i CZ 2 2 l _ 1 1 JI l oJ J Iit Ar sIT Sf 5 1a __ i l j E e u 01 01 I t 9 9 0 _ _ 1 _ t 1 _ 1 1 i t i I ii r LOClf oClUr f MYIht L OC OUT DEL C _ MUM i e gil e ic s 21 t i 0 ftl _ l _ r I I e 2 f J...

Page 31: ...i1 t l _ _ _ 1 _ j _ _ 40 p i _ _ _i I _ lo 1 i i Jo fJ y l _ r I i i I ll jj 1 1 _ Q o e a JOO 4 f t do v I 0 J Z u U Z 2 3 0 a d J Q J all Q a a l l J __ I z N 0 CD 0 3r U 3r cI cI a u 0 Do Z ffi z...

Page 32: ...ip SpF 50WV Q 5pF CO DSOCJBC C2C3l Pl HCG0500 C22 Chip l2pF 50WV 5 CO 120JJBC C2C31 Pl HCG120J C23 Chip l5pF 5QWV 5 CO 150JJBC C2C31Pl HCG150J C24 Chip l2pF 50WV 5 CO 120JJBC C2C3lPl HCGl20J C2S Chip...

Page 33: ...5 CD 151JJBC C2C31 Pl HCG151J C80 Chip 20pF SOWV 5 CD 200J JBC C2C31 Pl HCG200J C8l Chip lS0pF SOWV 5 CD 1S1JJBC C2C31Pl HCG1S1J CB2 Chip 20pF 50WV 5 CD 200JJBC C2C31 Pl HCG200J C83 Chip 150pF SOWV 5...

Page 34: ...F 50WV 10 CC l02KJBC HE50SJY8l02K C135 Ceramic O OOlJlF 50WV 10 CC l02KJBC HE50SJY8l02K C136 Ceramic O OOlJlF 50WV 10 CC l02KJBC HE50SJYB102K C137 Mylar O 047JlF 50WV 10 CC 473KJ8M AK1 UU473K50 C138 M...

Page 35: ...LF 50WV 20 CC l04MJBA 50MVR10HA C194 Mylar 0 056J LF 50WV 10 CC 563KJBM A 1 UU563K50 C195 Electrolytic 4 7J LF 25WV 20 CC 475MFBA 25MV4R7HA C196 Tantalum O 1J LF 35WV 20 CC l04MGBT DN1VOR1M1S C197 Ce...

Page 36: ...Ceramic O OOl F 50WV 10 CC l02KJBC HE50SJYB102K C304 Ceramic O OOl F 50WV 10 CC l02KJBC HESOSJYB102K C305 Ceramic O OOl uF 50WV 10 CC l02KJBC HE50SJYB102K C306 Ceramic O OOl F SOWV 10 CC l02KJBC HE50...

Page 37: ...O1J lF 50WV 10 CC l02KJBC HE50SJYB102K C360 Ceramic 100pF 50WV 10 CC 101KJBC HE50SJSL101 K C361 Chip 2pF 50WV 0 5pF CD 020DJBC C2C31 Pl HCG020D C362 Chip 6pF 50WV O 5pF CD DSODJBC C2C31 P1 HCG060D C36...

Page 38: ...pF CD D40CJBC C2C31 Pl HCG040D C419 Chip 4pF 50WV 0 5pF CD D40CJBC C2C31 Pl HCG040D C420 Ceramic 5pF 50WV 0 5pF CC D50CJBC HE40SJSL050D C421 Ceramic 0 OO1 lF 50WV 10 CC l02KJBC HE50SJYB102K C501 Ceram...

Page 39: ...41 011 lS5241 Silicon OX 2771 lSS241 012 lSS241 Silicon OX 2771 lSS241 013 155241 Silicon OX 2771 lSS241 014 lSS241 Silicon OX 2771 lSS241 015 lS5241 Silicon OX 2771 lSS241 016 lSS241 Silicon OX 2771...

Page 40: ...58S Silicon OX Q636 lS1585 057 lS1585 Silicon OX 0636 lS1585 0301 lSS241 Silicon OX 2771 lSS241 0302 lSS241 Silicon OX 2771 lSS241 0303 lSS241 Silicon OX 2771 lSS241 0304 lSS241 Silicon OX 2771 lSS241...

Page 41: ...MOS MX 7478 GRE0327 IC504 JlPD446G 45 Memory Back Up C MOS MX 7480 JlPD446G 45 TC5517CF 20 TC5527CF 20 IC701 JlPD7225G OO LCD Controller C MOS MX 7481 JlPD7225G OO COl LS TRANSFORMERS Ref No Descripti...

Page 42: ...Hz 68MHz to 107 995MHz 68MHz to 107 995MHz 68MHz to 107 995MHz 68MHz to 107 995MHz 68MHz to 107 995MHz 40MHz to 67 995MHz 40MHz to 67 995MHz 40MHz to 67 995MHz 40MHz to 67 995MHz 40MHz to 67 995MHz 40...

Page 43: ...ter Stripline on P C B L330 L501 Coil Choke 100 H LAL03KH101 K L502 Coil Choke 100 H LAL03KH101K L503 Coil Choke 100 LAL03KH101 K T1 Coil 2nd IF CA 1211 GR N769 T2 Coil 2nd IF WFM Band CA 12l2 GR N764...

Page 44: ...C2458 GR 031 2SC2458 GR NPN 2SC 2458GR 2SC2458 GR Q32 2S01406 GR NPN 2S0 1406GR 2S01406 GR 033 2SC1815 GAl NPN 2SC 1815GR 2SC1815 GR Q34 2SC2458 GR NPN 2SC 2458GR 2SC2458 GR RN2005 0301 RN2005 PNP w R...

Page 45: ...k ohm l SW 5 NO 0169EBN ERJ SGCYJ474 R27 Chip 470k ohm l SW 5 NO 0169EBN ERJ SGCYJ474 R2S Chip 470k ohm l SW 5 NO 0169EBN ERJ 8GCYJ474 R29 Chip 470k ohm l SW 5 NO 0169EBN ERJ SGCYJ474 R30 Chip 470k oh...

Page 46: ...N D340ECC A01SU473J A83 Carbon film 120k ohm 11SW 5 N 0375ECC A01SU124J A84 Carbon film 15k ohm l SW 5 N D297ECC A01SU153J A85 Carbon film 47k ohm l SW 5 N 0340ECC A01SU473J A8S Carbon film 10k ohm l...

Page 47: ...film 100 ohm 1 6W 5 N 0132ECC RD16S101J R140 Carbon film 33k ohm 1 6W 5 N Q324ECC RD16S333J R141 Carbon film 1 5k ohm 1 6W 5 N Q206ECC RD16U152J R142 Carbon film 3 3k ohm 1 6W 5 N Q230ECC RD16U332J R...

Page 48: ...1 6W 5 N 028 1 ECC RD1SU103J R197 Carbon film lOOk ohm 1 6W 5 N Q371ECC RD1SU104J R198 Carbon film 10k ohm l SW 5 N 0281 ECC RD1SU103J R199 Carbon film 82k ohm 1 6W 5 N Q360ECC RD1SU823J R200 Carbon...

Page 49: ...25PJ221 R254 Carbon film 220 ohm 1 4W 5 ERD 25PJ221 R255 Chip 100 ohm 1 8W 5 ND 0132EBN ERJ 8GCYJl0l R25S Carbon film 1 ohm 1 2W 5 N 0022EFE RNF1 2S1RDJ R301 Carbon film 2 2k ohm 1 SW 5 N 021SECC RD1S...

Page 50: ...n film 470 ohm 1 6W 5 N 0169ECC R016U471J R354 _Chip 4 7k ohm 1 8W 5 NO Q247EBN ERJ 8GCYJ472 R355 Carbon film 33k ohm 1 6W 5 N Q324ECC R016U333J R356 Carbon film 4 7k ohm 1 6W S N Q247ECC R016U472J R3...

Page 51: ...1ECC RD16Ul03J R707 Carbon film 10k ohm 1 6W 5 N Q281ECC RD16Ul03J R708 Carbon film 180k ohm 1 6W 5 N 0387ECC RD16U184J R709 Carbon film 22 ohm 1 6W 5 RD16U220J R710 Carbon film 150 ohm 1 6W 5 RD16U15...

Page 52: ...cord Binder cord Cor AC Foot Snap battery w cable Speaker Strainrelief Line Cord Switch push Terminal solderless Wire Kit 3 Pin Male 4 Pin Male 2 Pin Male 3 Pin Male 2 Pin Male 3 Pin Male 9 Pin Male...

Page 53: ...69 26 Top PLL Shield B GE 86D 6373 27 Plate PLL Shield D vce GE 860 6528 28 PCB Ass y Logic GA 860 6318 29 Case Logic Shield GE 860 6388 30 Top Logic Shield GE 860 6389 31 Fiber Logic Shield GE 860 65...

Page 54: ...ad GE 79D D541 75 Screw Countersunkhead Machine HD 2585 CM3x6 76 Washer External Toothed Lock 3m m ETW3m m 77 Washer Internal Toothed Lock 3m m HD 8966 ITW3m m 78 Nut flange serrated 3DIA 79 Nut flang...

Page 55: ...DISASSEMBLY EXPLODED VIEW Remove four screws and detach the Cabinet CD 55...

Page 56: ...56...

Page 57: ...N FM IF IN I 10 1 FM IF DC FEED BACK FM AC GND FM IF IN AM IF IN FM AC GND AM RF AGCI FM BIAS FM IF DC AM Vee FEED BACK FM Vee AM IF AGC FM GND AM IF OUT FM AF OUT AM AC GND QUAD IN AM FM METER OUT FM...

Page 58: ...14066BP Control2 s Control3 6 Voo Control 4 Out4 1t In Out o K Control oOut ln IC5 6 lPC324C V OUT A OUT 0 A INPUT A INPUT D INPUT IN v Rsc OUTPUT 8 INPUT 8 INPUT C INPUT T OUT 8 OUT C 7fJ T IC7 TDA19...

Page 59: ...3 GNO ICg S 81250HG DD0 123 IC301 MC145158 R4 ZI __ 4__ 4 4 _ 3 GND OUT OSC IN lflR OSC OUT lflV fv REF OUT VDD fR PO OUT MODULUS CONTROL VSS ENABLE LD DATA fiN CLOCK o __ r W8L u __ f 1111 II S V IL...

Page 60: ...IC302 CX79258 Vss elK AMI AMI lAT Voo Vss FMI Xl TVI XO BO PO AD 1C303 TD6127AP IC304 TD6105AP 5V I RFINPUT 60...

Page 61: ...t R6 L _ _ _ _ 3 COMMON 1C501 SN74LS145 or HD74LS145 OUTPUTS OUTPUT 6 I OUTPUT 0 21 OUTPUT 1 OUTPUT2 5 OUTPUT4 OUTPUT 7 OUTPUT3 OUTPUT 9 INPUT A IC502 TD62504P II 01 12 02 13 03 14 04 15 05 16 06 17...

Page 62: ...PSIS oot L t t t I t I Ild _O PREIZ 181 TZ 181 DECODER fA I 8 BIT RAil ROil I A U IACCU TDR 256 BYTE INDEX IIINDEX B192 BYTE S CONTRO AIBI REGISTER REGISTER COIlMAND XI81 TI81 PRESCA R Tl EJ B I PREX...

Page 63: ...ANP 1 08 CE o cr R W CE o t t j 1C701 lPD7225G 531 S3D S29 COM COU COU cou SI so 3 2 I 0 COMMAND DECODER LtD DRIVER DISPLAY DATA LATCH DSC CL2 Voo_ Vss iiESEf c g 1TE CONTROL BUSY 391 0519 3li o518 37...

Page 64: ...BASE 2 EMITTER 3 COLLECTOR 1 EMITTER 2 BASE 3 COLLECTOR 1 BASE 2 QLLECTOR 3 EMITTER 123 3 F 2SC3358 G 2SK184 GR 2 4 c J E 2S01330 m9 1 2 3 1 BASE 2 COLLECTOR 3 EMITTER 1 EMITTER 2 BASE 3 EMITTER 4 CO...

Page 65: ...node Cathode Band Orange 8 1S2076A C SR1K 2 Cathode Silicon CI I Anode Cathode Band Navy Blue Cathode Silicon Anode 0 184841 1 1 1st Band White 2nd Band White I I 1 1 1 2 3 4 I 1 I 2 I 3 I 4 I E 1S158...

Page 66: ...athode Type No Cathode Band Navy Blue Anode H 1SV89 Silicon CatL lho d e i Anode Cathode Band Silver Cathode Varaetor 2nd 3 U9htBluel 1st Band Black II OA90 R Germanium Cat h o de J 11 A n ode Cathode...

Page 67: ...26 P27 P3TISRDY RF filter switch P3 TXD RF filter switch PI3 RF filter switch P34 RXD PI4 P33 CNTR PI P321INT2 P31 P3cP USA etc Cellu lar switch INTI Reset CNVSS Input RESET XIN XOUT cP Low battery LC...

Page 68: ...2 A2 23 P32 INT2 Hold Input 55 POl Memory address 1 A1 24 P31 Sound Squelch Input 56 POO Memory address 0 AO 25 P30 NC 57 P27 Memory I O 8 26 INTl 5 V 58 P26 Memory I O 7 27 CNVSS GND 59 P25 Memory I...

Page 69: ...97 Ofll fig _ j41K 471 rOoOl f _ J 6 IC202 o D39 4O IMI TO o047 l 2D7SA t t i j MI 1 x o u 1819202122232425 25 yrnrnr n un x A X Hyy yy yf XX ch I z 1 7 llJ Z TO CPU TO PLL SECTION CN503 SECTION PI P...

Page 70: ...v1ATIC DIAGRAM LINEAR SECTION Cat No 20 119 9119 I I I I I I I I I I I I I I I I I I I I I 1 teol N r11 I L_L _ _ _ _ _ _ _ _ t Q2 t _ _ f IQIC Ql C 022 ZSCZ4 L h RI 71...

Page 71: ...I S It m7 IBOK 100 16 CIl t _ i I f I L I 10K R710 ISOUNO SO 1 13 12 II Ie 91 e 7 6 5 4 3 21 d ISO C706 _ _ 14 It 0 1 l 0 N jU 52 70lr L l31 l 5 I CL I 50A 7K V I i1 MO OFF COM 3 S28 r t so S27 LR7021...

Page 72: ...CD 9 Q UU i STU 5XH l jlDtDnfDnlD jjfffe3 _____ r I I I I I 15 I r 1 tlo c N 5 t r t4 0 S 02 H 1 t HI t H i I I I I lO pS l CJ I I OS03 I I I 1 CS184 I 2 H os041 I i I a 01 3 Iti ososl 1 I 14 1 0512...

Page 73: ...00jl R347 8 2K R348 330 R350 R352 100 15K C361 ICI 2PICI J t 1 0314 0313 rCJ 1 r I 2S0358 250358 1 R349 C414 060 C363 4 7K liP ICI TIIOOP Igr I R353 los6 C362 470 TO 5P T 6P ICI ICI C35 0 001 C379 10Q...

Page 74: ...9 o SPICI ICI I I IC306 TA78L005AP l C374 SP l ici IC305 TAR 78LOOSAP IeC404 C40S 0 33 35 0 i135 ITl IT1 J L321 0 Ip el C389 To V35 IT 3 1 IC304 T06105AP R366 10K l R367 J T C395 IK 10 SO t 1 C421 0 L...

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