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TABLE OF CONTENTS

I. SPECIFICATIONS

A. GENERAL

B. MEASUREMENT CONDITIONS

C. TRANSMITTER

D. RECEIVER

E. GENERAL PERFORMANCE

II. ALIGNMENT PROCEDURES

A. CHECK OF FRONT PCB ASSEMBLY

B. ADJUSTMENT POWER SUPPLY PCB ASSEMBIY

C. PLL SECTION AND CARRIER OSCILLATOR SECTION

ADJUSTMENT_________________________________

D. ALIGNMENT PROCEDURE OF TRANSMITTER

E. ALIGNMENT PROCEDURE OF RECEIVER

F. FREQUENCIES OF LOCAL OSCILLATORS AND IF STAGE

IN RECEIVING STATE___________________________

G. VOLTAGE CHART : TR & FED

III. MEASUREMENT CONDITIONS

A. SPECIFICATIONS

B. HOWLING TEST STANDARD

C. ALIGNMENT PROCEDURE

IV. BŁOCK DIAGRAM

V. SCHEMATICS/PC BOARDS/WIRING DIAGRAMS

A. EM2-

: MAIN PCB (1/2) PARTS LIST ASSEMBLY

TOP VIEW

B. EM2—0123 : MAIN PCB (2/2) PARTS LIST

C. EM2—0125 : FRONT CH SW PCB PARTS ASSEMBLY

BOTTOM VIEW

D. EM3—0126 : PWR SUPPLY PCB PARTS ASSEMBLY

TOP VIEW

E. EM3-0127 : ADDITIONAL PARTS ON BOTTOM

F. EM4—0128 : SR PCB PARTS ASSEMBLY TOP VIEW

G. EM4—0181 : FM PCB PARTS ASSEMBLY

All manuals and user guides at all-guides.com

Содержание Benjamin

Страница 1: ...Service Manual CB TRANSCEIVER Model BENJAMIN UT 552B uniden CORPORATION All manuals and user guides at all guides com a l l g u i d e s c o m...

Страница 2: ...CAL OSCILLATORS AND IF STAGE IN RECEIVING STATE___________________________ G VOLTAGE CHART TR FED III MEASUREMENT CONDITIONS A SPECIFICATIONS B HOWLING TEST STANDARD C ALIGNMENT PROCEDURE IV B OCK DIA...

Страница 3: ...2 SCHEMATIC DIAGRAM 1 3 I ES3 0025 SCHEMATIC DIAGRAM 2 3 J ES4 0043 SCHEMATIC DIAGRAM 3 3 K EW2 0022 WIRING DIAGRAM 1 2 L EW3 0032 WIRING DIAGRAM 2 2 VI BILL OF MATERIAL 17 P S All manuals and user gu...

Страница 4: ...Output 10 Audio Frequency SSB Receive 11 Audio Output Load 26 965 MHz 27 405 MHz 46 Transistors 83 diodes 8 I C s 3 LEDS 2 500 Dynamic Type 16 7 W Max M Type MIKE 4P METAL EXT SP 3 5 0 Channel Select...

Страница 5: ...B dB 65 60 5 Carrier Suppression SSB dB 50 40 6 Current Drain AC at No Modulation AM mA 300 700 FM mA 300 700 SSB mA 150 300 7 Current Drain AC AM MAX Mod AM mA 300 700 FM MAX Dev FM mA 300 700 SSB MA...

Страница 6: ...it 50 mV for 10 dB change in Audio Output AM dB 90 70 SSB dB 90 70 4 Overall Audio Fidelity 6 dB down 1 kHz ref Upper Frequency AM Hz 2 000 1 500 3 000 FM Hz 2 500 1 500 4 000 SSB Hz 2 500 1 500 4 000...

Страница 7: ...FM dB 6 3 SSB dB 6 3 14 Clarifier Range AM Hz 1 500 600 2 500 FM Hz 1 500 600 2 500 SSB Hz 1 500 600 2 500 15 Noise Blanker Performance EIA AM dB 3 6 FM dB 3 6 SSB dB 3 6 16 ANL NB Loss at ipV Input A...

Страница 8: ...ntinuous operation of a duty cycle of 5 minutes transmitting and 1 minute receiving 3 Reverse Polarity Protection Shall h ve reverse polarity pro tection and be operable with positive and negative gro...

Страница 9: ...S554 is switched ON check that 19 is displayed on CH LED 3 Check that meter lamp PL551 and 552 are always turned ON Likewise there should be no notable diff rence in luminance 4 Check that TX LED and...

Страница 10: ...be Earth TP10 3 Adjustment STEF MODE MEASURING DEVIC CONNECTIONS PT S BE ADJ PROCEDURE 1 K RX Standby DC Voltmeter to JP32 VR801 Connect WA501 to power source and switch power ON Then adjust so that D...

Страница 11: ...B Alimentation sur secteur incorpor e Tension d alimentation 220 V 50 Hz ATTENTION Cet appareil ne doit nas tre expos des projections d eau ou claboussures Comn andes et fonctions S lecteur de canaux...

Страница 12: ...imentation sur secteur incorpor e Tension d alimentation 220 V 50 Hz ATTENTION Cet appareil ne doit nas tjp exnns h des nrnientinns d eau ou CiabousstifesK Commandes et fonctions S lecteur de canaux R...

Страница 13: ...canaux R glage vo lume Squelch Gain micro gain RF Clarifier Vu m tre mission r ception Dimensions mm Longueur335 Hauteur 95 Profon deur 210 1 Volume Marche Arr t 2 Souelch 3 Gain micro 4 RF Gain 5 Co...

Страница 14: ...nnect freq counter to TP3 L15 Adjust so that frequency is within 16 490 MHz 20 Hz 6 RX FM l Hw Same as Step 5 Check that frequency is within 16 490 MHz 40 Hz 7 RX USB 19 CH Same as Step 5 L16 Adjust s...

Страница 15: ...Note Apply paraffin lock to the portion in diagonal Unes before adjustment Then apply paraffin lock to L13 screw core after adjustment All manuals and user guides at all guides com...

Страница 16: ...Remove DC ammeter connect 002 PB 100 Connect Powermeter RF VTVM and oscilloscope to ANT JACK J501 L34 35 36 37 14 Adjust to MAX the RF Volt meter indication However adjust MOD input so that output doe...

Страница 17: ...E Same as Step 3 VR10 Adjust to 4 0 W the power meter indication 9 AM 19 CH NO MOD Same as Step 3 VR 7 Adjust to RF power 4 the meter indication of the unit 10 AM 19 CH 30 mV MOD IN Same as Step 3 VR...

Страница 18: ...so that the standard output will not be exceeded at all tiraes 3 RX AM 1 40 CH L 5 Adjust to peak at CHI Next alter nately switch CHI CH40 and adjust so that sensitivity d viation is within 1 dB 4 RX...

Страница 19: ...R8 L26 VR7 VR6 VR5 VRIO 1 1 __ 1 TP8 nn L2 0 1 RI5 LIO TP9 S VR4 D141 _TP10 R113 L U TP5 0 R39 L15L16 L17L20L19 L18 VR3 PB 189 FM TOP VIEW TP13 0 TP12 9 L602 L601 VR6 0 1 O VR2 TP32 All manuals and us...

Страница 20: ...65 111 16 470 16 4725 16 4675 10 695 18 27 175 112 16 480 16 4825 16 4775 10 695 19 27 185 113 16 490 16 4925 16 4875 10 695 20 27 205 115 16 510 16 5125 16 5075 10 695 21 27 215 116 16 520 16 5225 16...

Страница 21: ...5 1 6 1 7 1 8 7 8 9 3 3 10 0 11 7 2 12 0 13 7 1 14 0 15 0 1r 16 r 0 SYMB NO PIN NO RX TX VOLTAGE IC 1 1 RX 0 2 2 0 1 3 0 1 4 0 5 1 2 6 1 5 7 0 8 1 8 0 IC 2 1 RX 5 1 TX 2 0 3 0 4 5 1 5 5 1 6 0 7 5 1 8...

Страница 22: ...7 3 4 0 Q17 3 4 6 2 2 7 Q18 r 2 7 6 4 1 9 Q19 RX AM 0 7 0 0 SSB 0 2 9 0 Q20 RX 1 3 4 7 0 8 TX 1 3 4 7 0 8 Q21 2 9 6 8 2 5 022 0 7 4 3 0 4 2 5 6 3 5 Q23 1r 4 2 5 6 3 5 Q24 RX SSB 2 8 6 9 2 1 TX 2 8 6...

Страница 23: ...TX 14 4 21 4 13 8 Q601 FM RX 7 2 0 7 8 TX 7 0 7 7 7 7 Q602 FM RX 0 9 3 6 0 1 TX 0 9 3 6 0 1 Q603 RX 0 0 0 NB ON 0 0 0 Q801 RX 6 8 6 2 15 TX 6 8 6 2 15 Q802 RX 15 0 21 4 14 4 TX 15 0 21 4 14 4 CONDITI...

Страница 24: ...CH MIC GAIN CLARIFIER RF GAIN 220 V 60 Hz 50 ohms 25 C 500 Hz 2 400 Hz Two Tone 1 KHz Single Tone 1 KHz 0 dB IV 0 5 1V 0 5W 8 ohms 19 CH switches volumes etc shall be OFF OFF OFF MAX MIN MAX CENTER MA...

Страница 25: ...0 4 MAX 6 Power at AM 80 MOD lKHz MOD Increased From N0 MOD 7 MOD Distortion Rate lKHz at 80 MOD FM 1 5 KHz Dev 9 MAX 9 MAX 8 AMC Range Input ratio from 50 MOD to 100 MOD dB 40 MIN 9 SSB TX MAX Outpu...

Страница 26: ...Wpep mA 700 MAX 350 MAX 700 MAX 18 MOD Frequency Response Lower 450 Hz 1 000 Hz Standard dB 8 MIN 8 MIN 15 MIN 19 MOD Frequency Response Upper 2 500 Hz 1 000 Hz Standard dB 8 MIN 8 MIN 10 MIN 20 Low V...

Страница 27: ...00 6 Frequency Response LOWER 1 000 Hz 0 dB 6 dB down Freq Hz 200 500 100 500 200 500 7 Cross Modulation 2 Signa s D S Method dB 40 MIN 8 AF MAX Output Power 66 dB Input 1 KHz MOD W 2 5 MIN 2 5 MIN 2...

Страница 28: ...quency Tol rance Hz within 800 within 800 within 800 25 ANL NB Loss 6 dB Input dB 2 1 2 26 ANL NB Performance EIA Standard dB within 6 within 6 within 6 27 Image Rejection Ratio fo 910 KHz dB 70 MIN 7...

Страница 29: ...tely with the unit and set to 100 dB N0 MOD 3 Rotate the and make sure that no howling occurs Meter Inspection Standard S Meter At ANT input of 40 52 dB the indication should be within the range shown...

Страница 30: ...itch s conditions b Discharge should be made 3 times with 10 seconds intervals for ail control knobs switch knobs connectors and display window c Repeat similar test as above with opposite polarity of...

Страница 31: ...V BLOCK DIAGRAM All manuals and user guides at all guides com a l l g u i d e s c o m...

Страница 32: ...ANL NB SW S5S1 r o Hl CUT SW S5S2 PTT BENJAMIN UT 552B BLOCK AM B 1 d ia g r a m All manuals and user guides at all guides com...

Страница 33: ...VI SCHEMATICS PC BOARDS WIRING DIAGRAM All manuals and user guides at all guides com...

Страница 34: ...C 0i 0 Q l l OUFFER Q22 S wL U PLL MIX o se Q 20 Q23 1 A G C S W Q 9 0 B U F F E R a 6 1 ________ f C A P R I E R B M ose L Q 2 i c 3 T X f i n a l t x ORIVE PRE OPIVE 4__ B P F TX MIX MOO I Q 5 0 Q...

Страница 35: ...fcx All manuals and user guides at all guides com...

Страница 36: ...1 R X All manuals and user guides at all guides com a l l g u i d e s c o m...

Страница 37: ...2SC 6751 C2 2 SC 37 5L 03 2SC1735L 0A 2SC 9 5 AQ CS 2SA733P 07 2SC9ASAC All manuals and user guides at all guides com...

Страница 38: ...33 07 2SC9A5AC ICI M5223L O O 2SC9ASA0 C 2SC94SAQ 012 5 0C VOLTAGE iS C U SHOWS IX AH COHOITI 6 0C VOLTAGE IM t SHOVS TX SSB C0N01T 7 O C VOLTAGE IN NO HARK SHOVS RX CONOIT All manuals and user guides...

Страница 39: ...ICRO FAAAOS UNLESS O TH ERVISE N O TEO IP M ICRQ M ICRO FARAOI 1 A LL CAPACITORS TEfV ER A TU R E CHARACTERISTICS ARE LE S S THAN I0 0 0 P F 1 ZF O O O A T v Fl OR TF C O O O Iu F a 0 3 S u FI UNLESS...

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Страница 41: ...SYNTHETISEUR All manuals and user guides at all guides com a l l g u i d e s c o m...

Страница 42: ...S O C 2 2 I 2 SCi 6 7 5 L C2 2SC1575L Q3 2 5 C1T 3 OL OL 2SC945A0 06 2SA733P Q7 2 SC All manuals and user guides at all guides com...

Страница 43: ...Qi 2SC9 5AQ 06 2SA733P 07 2SC9i 5AQ iCt M5223L 010 2 S C 9 i 5 A 0 All manuals and user guides at all guides com...

Страница 44: ...CUl O O I O RECEPTEUR C9 45A iCt M5223L Q10 2SC9i5A Q 2SC9i5A 012 2SC9i5AC EMETTEUR All manuals and user guides at all guides com...

Страница 45: ...All manuals and user guides at all guides com...

Страница 46: ...RESISTOR VATTACES ARE I 6 V U N LEI 3 CAPACITANCE VALUES ARE INOIC ATEO W ES S O THERVISE NOTEO P H IC R Q t A L L CAPACI TORS TEMPERATURE CHARA ARE S L LE S S THAM I0 0 0 P F1 2 F 0 1 Y F O O O W F...

Страница 47: ...M C R Q M C R O FARAOI l A L L CAPACITORS TEMPERATURE CHARACTERISTICS AR S L IL E S S TKA I0 0 0 P F 1 IF t O O O O x F l OR VF t 0 0 t F fl 0 3 9 F l UNLESS OTHERVISE NOTEO 5 OC V X T A C E IN SHOVS...

Страница 48: ...60 WV R 5 7 3 S60 VA R S 7 t S60 V A 1 1B IC 10 1 1F 1 G 2A 28 2C 20 2 2 F 2G 4L HS O f f O of O S S S t S W 0 6 2 L v O c O N W C I 1 tn 1 in ir L O tn a a Q Q CH 1 9 ON O S S S S v t S SS 02 P O W E...

Страница 49: ...0 55 SV4 6 2 5502 P O W E R VAS02 W 2 S 5 4 J 6 0 1 PG0S6 P 7 06024 005 A1ii T S 0 1 TF422 i _____ VaS O I V2 969 220 240 VAC 50 60 Hz NOTES 1 RESISTANCE VALUES ARE SH0VN IN OHM S UNLESS 0THERVISE N0T...

Страница 50: ...H E R V I S E N O T E D K I L O OHM M M EC OHMi 1E S IS T 0 R V A T T A G E S AR E 1 6 U N L E S S 0 I H E R 1 S E l A F A C I T A N C E V A L U E R E I N D 1 C A T E 0 IN _ I N l E S S O T H E R V l...

Страница 51: ...All manuals and user guides at all guides com a l l g u i d e s c o m...

Страница 52: ...All manuals and user guides at all guides com...

Страница 53: ...JL C2 T in 4 7 k R3 4Zb 4 7k J C3 8 p ihR8 1 V l n 1 _X2 1 L CS 4 7 k R7 C8 S p i 4 7 k C7 l n X X3 t m R10 o 4 7 k R l i o CS 4 7k in R12 o 4 7 k R 2 Q l k R27 1K R 3 1 i k IFIoffil 17cm IrTcm 13 8v...

Страница 54: ...7 4 4 7 7 5 1 6 1 7 1 8 7 8 9 3 3 10 0 11 C M 12 0 13 7 1 14 0 15 0 1 16 1r 0 SYMB NO PIN NO RX TX VOLTAGE IC 1 1 RX 0 2 2 0 1 3 0 1 4 0 5 1 2 6 1 5 7 0 r 8 1 r 8 0 IC 2 1 RX 5 1 TX 2 0 3 0 4 5 1 5 5...

Страница 55: ...Q17 3 4 6 2 2 7 Q18 r 2 7 6 4 1 9 Q19 RX AM 0 7 0 0 SSB 0 2 9 0 Q20 RX 1 3 4 7 0 8 TX 1 3 4 7 0 8 Q21 2 9 6 8 2 5 Q22 0 7 4 3 0 4 2 5 6 3 5 Q23 1r 4 2 5 6 3 5 Q24 RX SSB 2 8 6 9 2 1 TX 2 8 6 7 2 1 Q25...

Страница 56: ...7 13 7 0 Q503 12 8 5 7 13 5 ir 13 0 13 7 13 7 Q504 RX 14 4 21 4 13 8 TX 14 4 21 4 13 8 Q601 FM RX 7 2 0 7 8 TX 7 0 7 7 7 7 Q602 FM RX 0 9 3 6 0 1 TX 0 9 3 6 0 1 Q603 RX 0 0 0 NB ON 0 0 0 Q801 RX 6 8...

Страница 57: ...B GL 9HD4 GL 9NG4 2 S C 2 1 6 6 C E 2 S D 8 9 5 E U T 7 T 7 2S A 1012 O 2SC2312 C Cathode 6A1 IZLIZL 2S D1348 R O cj 2SC1973 SSB 2SK192A BL 2SC3242A E LL 2253YL i s V MARKING SIDE 2SB525 C MARKING SID...

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Страница 67: ...All manuals and user guides at all guides com...

Страница 68: ...0 2 SCHEMA I All manuals and user guides at all guides com...

Страница 69: ...A SCHEMA DE CABLAGE S O V du or ______________________________ x _____ A a 1 eue I n________________________ FRONT PCE All manuals and user guides at all guides com...

Страница 70: ...PLATINE PRINCIPALE SOLDERING All manuals and user guides at all guides com...

Страница 71: ...BR 181 BOBINE L B 4 6 4 1 2 2 TRANSFORMATEUR T F 4 2 2 1 DC009 DIODE M V 1 Y 2 DC 22 DIODE IS V 7 3 E B 1 S 2 6 8 8 EA 1 H P 0 2 3 HAUT PARLEUR S P 1 6 7 1 1 0 0 0 8 C I R C U I T INTEGRE L 7 8 0 8 1...

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Страница 73: ...D E S I G N A T I O N Q T E M O D i i ___________________ I T X 3 0 9 TRANSISTOR 2SB 1 0 3 5 2 T X 3 1 0 TRANSISTOR 2SD 8 9 5 1 TX311 TRANSISTOR 2SD 1 3 4 8 1 j VM015 VU METRE M T 2 2 7 1 j All manua...

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