Uniden PRESIDENT JACKSON, Service Manual

Page 1: ...Service Manual CB TRANSCEIVER Model JACKSON UT 547C D NN thanks Homer uniderne CORPORATION...

Page 2: ...N OPERATING CONTROLS ALIGNMENT PROCEDURES FREQUENCIES 2 BLOCK DIAGRAM SCHEMATIC DIAGRAMS WIRING DIAGRAM PC BOARD 1 E12 2108 SCHEMATIC DIAGRAM 2 E12 2108 REVISED I 3 E22 4674 MAIN PCB PARTS ASSEMBLY TO...

Page 3: ...965 27 405 MHz D Band 27 415 27 855 MHz E Band 27 865 28 315 MHz 3 600 ohms Dvnamic Tvpe 8 ohms W i Mic 4P EXT SP 3 59 PA SP 3 59 DC Power Channel Selector Mode Selector FM AM USB LSB Mic Gain ON OFF...

Page 4: ...rain at no Modulation h Battery Drain Am MAX Modulation SSB MAX Wpep Two Tone FM MAX Modulation i Modulation Frequency Response 1 kHz OdB reference L wer at 450 Hz Lower at 2 5 kHz j Microphone Sensit...

Page 5: ...t Power Audio Output Power at 10 THD RF Gain Control Range S N Ratio at 1mV Input Squelch Sensitivity at Threshold Squelch Sensitivity at Tight S Meter Sensitivity at S 9 No Modulation Image Rejection...

Page 6: ...put Power at 10 Distortion NOTE UNIT AM mA SSB mB FM mA AM mA SSB mA FM mA AM kHz SSB kHz FM kHz LIMIT 800 800 800 1 500 1 500 1 500 More than More than More than Krk aan 1 Shall have reverse polarity...

Page 7: ...e radio with the mounting bracket in the exact location desired If nothing interferes with mounting it in the desired position remove the mounting bracket thumb screws and mark the mounting holes usin...

Page 8: ...ct the black wire to ground This is usually the chassis of the car Any convenient location with good electrical contact may be used remove paint Note See ground connection under GENERAL INFORMATION fo...

Page 9: ...antenna Refer to the antenna installation instructions included with your an tenna A vertically polarized quarter wavelength whip antenna provides the most reliable operation and greater range The sh...

Page 10: ...ransceiver for base station operation any Citizens Band beam dipole ground plane or vertical antenna may be used A ground plane vertical antenna will provide the most uniform horizontal coverage REMOT...

Page 11: ...ica ting that your receiver may not be tuned to the exact same frequen cy as the transmitter to which it is listening The JACKSON is equipped with a Clarifier By tuning the Clarifier you can slightly...

Page 12: ...to be heard P A SWITCH on SQUELCH CONTROL Full counterclockwise rota tion of the squelch control engages the PA function The PA function should not be used unless an external speaker is con nected In...

Page 13: ...trong signals Operate this control as required to obtain minimum adjacent channel interference 8 METER MODE SWITCH S RF Position Meter indicates relative transmitter output power when transmitting inp...

Page 14: ...y 13 ROGER BEEP SWITCH When this switch is placed in the ROGER BEEP position your radio automatically transmits the audio sign at the end of your transmission The listener can easily note your transmi...

Page 15: ...cept Mode LSB RX und Connect DC Voltmeter to TP 2 R122 Adjust for 6 0V 0 1V on DC Voltmeter Confirm 2V to A Band Channel 1 Connect Oscilloscope to TP 3 R73 Adjust for maximum reading on Oscilloscope C...

Page 16: ...ncy counter to 4 R104 Adjust for 10 6925MHz 20Hz on the Frequency Same as Step 4 except Mode AM TX counter c Test Equipment Connection see following page Connect Frequency counter to TP 5 R82 Adjust f...

Page 17: ...INNOD 3dOOSOTTIOSO LLV 8 GVOT UHAIHOSNVUL...

Page 18: ...ALIGNMENT POINTS...

Page 19: ...n DC No Modulation Ammeter MIC GAIN CW PA CB CB Same as Step 1 Connect DC Ammeter to TP 8 TP 7 Adjust VR9 to obtain the current 80mA Disconnect the DC Ammeter Connect PC 834AA to Check Point of Main i...

Page 20: ...RF Connect Deviation meter Adjust for 3kHz Same as above Deviation on Deviation meter except mode FM Set AF SG to 50 Modulation then add 16dB Adjust VR3 to 100 mudulation indication on the transceive...

Page 21: ...TIT...

Page 22: ...340050711950 WALA AV HHATHOSNVUL UOLVUANAD TVNDIS...

Page 23: ...ALIGNMENT POINTS...

Page 24: ...g Set the unit to C Band Channel 1 AM SSG Channel 1 adjust for maximum reading and then set 1 4 turn CCW Set the SSG to 100uV output with no modu lation Adjust VR1 to obtain S 9 on transceiver s meter...

Page 25: ...ALIGNMENT POINTS...

Page 26: ...F FREQUENCIES...

Page 27: ...BLOCK DIAGRAM...

Page 28: ...B yn BER ie IL Frei E A sl Walt os gx E De i zx 3 _ ull tal l 83 oT 114 av aa Tg d t S I E x t 3 21 rs eum a sae e yg yrs RO A E 5231 edl li a ig l diag r avo 4334 ms 924 I Fo atasa 1 oz fall 204 ti...

Page 29: ...SCHEMATIC DIAGRAMS WIRING DIAGRAM PC BOARDS...

Page 30: ...VELL sjuediy SBIJANJE seujny sep eJd np enti 9s os 30 371 3IVSUNIINS 9 HA INANAHONVYS AT UTIATAJA NSIS NOILNALLV uongjuoulmy 9SSEN 9912ouuoo UON XL XY Sa TAV NOLLYNDISdHd 981220 9 oN STS ON 5 9 ASNIA...

Page 31: ...ON a i 8 8 V 6 z ed x FEM sea EN 2 am Se ee Ht 45 i 2 W30 BRN 5 100 3 w29 VIO 5 80 5 ws vio S 90 3 w9 RED 3 80 3 wo WHT 5 80 3 BLU 5 80 3 w20 PNK 5 90 5 WAZ WHT 5 140 3 w22 ORG 5 140 3 w24 BRN 5 160 3...

Page 32: ...SUA UP ASA EX MVI Y f CAP h Mr EE en we o e ES 5 on um 0502 d TRIOS SPSOI SPEAKER I B40 PC 266 zr in MIC JACK BOTTOM VIEW C501 J505 DC POWER c w2 VIO 5 220 3 2 ANGSu DhLE Fan ars TSE P 6 RE Af IINE F...

Page 33: ...90 5 w21 WHT 5 140 3 w22 ORG 5 140 3 W24 BRN 5 160 3 w25 YEL 5 90 5 W26 YEL 100 5 W27 RED 160 3 YEL 5 90 3 W31 BLU S 90 3 w32 WHT 5 120 3 w33 5 100 3 w53 RED 3 40 3W54 BLU 5 90 3 w56 BLK 5 90 3 W34 O...

Page 34: ...JACKSON a N U Tai SIRE i i 4 Ana IN PARTS ASSEMBLY TOP vit MENE 5 PRE ELECTRONICS EUROPE...

Page 35: ...m e M m PB 042AB 01640 RE ML 992 AP es S 21 16ief 610624 zi 0119 a w z c t 3 2 31205 4 152 JP4212 3 JPI617 5 6...

Page 36: ...RH 128 R224 LEOIS OS C183 oon a C182 2 0047 SR 21 9df 613 idf mM At PRESS R WATTAGE 29 w UNLESS TMERWISE TEL APACIT AS TEMEL ar ARAQ TERT 5 1 655 THAN KE OF MORE THAN UNLESS TTRERWISE N TES UZ Sec UT...

Page 37: ...II JACKSON N 38 D OA 2sc20060 zsc ers IIT TR625AT33P TRS 250675 2 k E TRSO2 MRFAT7 TRSO3 25 266 ie Ii zi ET mp tt HEI O z TRIZ 25C1674L Eli jd Wen 1 0 3 c G D EB 7711 ILE mex1040086 0 mmu J L a M q iY...

Page 38: ...A L IR NEM A s 1 1 E ALP ha E 3 el le s COMICAS Sp ot E N Fh 45 y e El ga E qe Ea T Ps SE 3 499 9013 33 9 3 l 35 ti bat Y Wr k TRI2 2SCIGT4L 800 P8 042 cmm OO Tp 22 3 i g G e e 5 i4 AA Est LA La TRI 2...

Page 39: ...ARAQS UNLESS OTALAWISL NOTED 100097 9 OTHERWISE 19 90 0 9 4 AU CAPACITORS TAPLAATVET CHARACTERS TS 2 999 WATTACES aec VOW veut OAS notte 8 VALVES t TRIG 22 2SC945A0 V 1 MESISTANCE VALUES ane town i UN...

Page 40: ...7 DV002 DIODE 1523396 6 BR016 BOBINE LB 209 DV003 DIODE KB 262 1 BRO22 BOBINE LB 233 HMOO1 MICROPHONE MK 221 i BRO23 HPOOL HAUT PARLEUR SP 053 4 BOBINE LB 309 BRO24 BOBINE LB 335 11001 CICUIT INTEGRE...

Page 41: ...58 QUARTZ 10 6975 QUARTZ 10 240 QX 074 QUARTZ 14 550 FACE AVANT JACKSON POTENTIOMETRE RU 320 SOKA POTENTIOMETRE RU 447 SOKE POTENTIOMETRE RU 485 1KB 1KA POTENTIOMETRE RV 560 20KB 1KH COMMUTATEUR SR 20...