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PRESIDENT ANDY AM/FM Service Manual
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PRESIDENT ANDY AM/FM Service Manual

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ANDY AM/FM
12/24
SERVICE MANUAL

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Summary of Contents for PRESIDENT ANDY AM/FM

  • Page 1 ANDY AM/FM 12/24 SERVICE MANUAL...
  • Page 2 -TECNNICAL CHARACTERITICS ANDY 12/24 ( config: EU PL d EC U In ) 1-GENERAL: -Multiconfiguration (EU, PL, d, EC, U, In) -EU  40 channels AM/FM 4W (from 26,965Mhz to 27,405Mhz) -PL  40 channels AM/FM 4W (from 26,960Mhz to 27,400Mhz) -d ...
  • Page 3 3-RECEPTION: -Maximum sensitivity at 20dB sinad -0,5µV(-113dBm) AM/FM -Audio frequency response -From 300Hz to 3kHz in AM/FM -Adjacent channel selectivity -Superior to 60dB -Frequency image rejection -Superior to 60dB -Intermodulation response -Superior to 54dB -Maximum audio power -2,5W -Squelch sensitivity -Threshold 0,2µV(-120dBm)/Tight 1mV(-47dBm) -Current drain -600mA max at 13,2V / 300mA max at 26,4V...

  • Page 4: Alignment Procedure

    ALIGNMENT PROCEDURE (ANDY AM/FM) * VCO/PLL PORTION - Alignment procedure - Test points - Frequencies chart * TRANSMITTER - Alignment procedure - Test points * RECEIVER - Alignment procedure - Test points Test equipement required Frequency counter 200 Mhz HF Generator...
  • Page 5 ALIGNMENT VCO/PLL 1 - Alignment procedure (13,2V/26,4V;configuration”EU”) STEP CONDITION ADJUSTMENT REMARKS OF ADJUSTMENT AM/FM(EU) Connect a frequency counter to TP7, and RX mode and check: 37,900MHz. Channel 20 AM/FM(EU) Connect a voltmeter to TP 1, and check: TX/RX mode Tx Channel 40=3V±0,2V Channel 40 Rx Channel 40=3,2V±0,2V AM/FM(EU)
  • Page 6 ANDY AM/FM ALIGNMENT VCO/PLL TP 7 TP 1...
  • Page 7 - FREQUENCY LIST (EU channels) Channels Frequencies Frequencies (MHz) (MHz) 26,965 37,660 26,975 37,670 26,985 37,680 27,005 37,700 27,015 37,710 27,025 37,720 27,035 37,730 27,055 37,750 27,065 37,760 27,075 37,770 27,085 37,780 27,105 37,800 27,115 37,810 27,125 37,820 27,135 37,830 27,155 37,850 27,165...
  • Page 8 - FREQUENCY LIST (PL channels) Channels Frequencies Frequencies (MHz) (MHz) 26,960 37,655 26,970 37,665 26,980 37,675 27,000 37,695 27,010 37,705 27,020 37,715 27,030 37,725 27,050 37,745 27,060 37,755 27,070 37,765 27,080 37,775 27,100 37,795 27,110 37,805 27,120 37,815 27,130 37,825 27,150 37,845 27,160...
  • Page 9 - FREQUENCY LIST (d channels) Channels Channels Frequencies Frequencies Frequencies Frequencies (MHz) (MHz) (MHz) (MHz) 26,965 37,660 26,565 37,260 26,975 37,670 26,575 37,270 26,985 37,680 26,585 37,280 27,005 37,70 26,595 37,290 27,015 37,710 26,605 37,300 27,025 37,720 26,615 37,310 27,035 37,730 26,625 37,320...
  • Page 10 - FREQUENCY LIST (EC channels) Channels CEPT Frequencies Frequencies (MHz) (MHz) 26,965 37,660 26,975 37,670 26,985 37,680 27,005 37,700 27,015 37,710 27,025 37,720 27,035 37,730 27,055 37,750 27,065 37,760 27,075 37,770 27,085 37,780 27,105 37,800 27,115 37,810 27,125 37,820 27,135 37,830 27,155 37,850...
  • Page 11 - FREQUENCY LIST (UK channels) Channels Frequencies Frequencies (MHz) (MHz) 27,60125 38,29625 27,61125 38,30625 27,62125 38,31625 27,63125 38,32625 27,64125 38,33625 27,65125 38,34625 27,66125 38,35625 27,67125 38,36625 27,68125 38,37625 27,69125 38,38625 27,70125 38,39625 27,71125 38,40625 27,72125 38,41625 27,73125 38,42625 27,74125 38,43625 27,75125 38,44625 27,76125...
  • Page 12 - FREQUENCY LIST (In channels) Channels Frequencies Frequencies (MHz) (MHz) 26,965 37,660 26,975 37,670 26,985 37,680 27,005 37,70 27,015 37,710 27,025 37,720 27,035 37,730 27,055 37,750 27,065 37,760 27,075 37,770 27,085 37,780 27,105 37,800 27,115 37,810 27,125 37,820 27,135 37,830 27,155 37,850 27,165...
  • Page 13 ALIGNMENT TRANSMITTER 1 - Alignment procedure (13,2V/26,4V;configuration”EU”) STEP CONDITION ADJUSTMENT REMARKS OF ADJUSTMENT AM/FM(EU) Connect a wattmeter to jack antenna, adjust W4 to reach 4W on the wattmeter. Channel 20 Same as 1 Connect a dummy load to jack antenna. Check that the “RF meter”...
  • Page 14 ANDY AM/FM ALIGMENT TRANSMITTER...
  • Page 15 ALIGNMENT RECEIVER 1 - Alignment procedure (13,2V/26,4V;configuration”EU”) STEP CONDITION ADJUSTMENT REMARKS OF ADJUSTMENT AM(EU) Connect HF generator to jack antenna Channel 20 adjusted at ( –107dBm / 1KHz 60%), Middle volume connect sinad meter to jack EXT speaker level. and check: The sensitivity must be ...
  • Page 16 ANDY AM/FM 12/24 BLOCK DIAGRAM...

  • Page 17: Block Diagram

    ANDY AM/FM BLOCK DIAGRAM MAIN UNIT W900(1/2) (455KHz) VOLUME FM MUTE NB RF AMP NB DET NB RF AMP NB ATT Q1, Q7, Q8 Q15, Q16, Q11 AF SW PA EN TONE TBK EN 10.695MHz 1ST MIXER (455KHz) FM IF IC...
  • Page 18 ANDY AM/FM 12/24 SCHEMATIC DIAGRAM...

  • Page 19: Schematic Diagram

    103P L7808CV R131 R188 2SC2712(GR) C181 BC807-25 PLL-CLK R197 R201 Vout 475P/16V LCD-EN R130 KEY1 R160 R161 103P 100R PRESIDENT ANDY AM/FM LMBT3906LT1G C110 C115 R146 103P C113 C114 BC807-25 103P 1SS400 103P 103P R194 C188 LMBT3906LT1G 103P R132 R133...
  • Page 20 R808 103P R815 C800 C808 100R R831 103P 104P C809 C810 D806 R806 5.1V 103P 103P R814 KEY2 R833 R835 R836 S803 R807 VOLH R832 R834 C801 103P S802 R809 PRESIDENT ANDY AM/FM Front ASSY schematic diagram 20 12 2016...
  • Page 21 ANDY AM/FM SCHEMATIC DIAGRAM J900 VOLPCB J902 DC SW W900 RP09110SNBX-V01-1479(B103a,KA20A11) J901 SQPCB W901 RP09110NOBX-V01-1478(B103a,KA20A11)
  • Page 22 ANDY AM/FM 12/24 COMPONENT LAYOUT...

  • Page 23: Pc Board Views

    ANDY AM/FM PC BOARD VIEWS PRESIDENT ANDY AM/FM Main PCB component layout 20 12 2016...
  • Page 24 ANDY AM/FM PC BOARD VIEWS PRESIDENT ANDY AM/FM Main PCB points test 20 12 2016...
  • Page 25 ANDY AM/FM PC BOARD VIEWS PRESIDENT ANDY AM/FM Front PCB top component layout 20 12 2016...
  • Page 26 ANDY AM/FM PC BOARD VIEWS PRESIDENT ANDY AM/FM Front PCB bottom component layout 20 12 2016...
  • Page 27 ANDY AM/FM PC BOARD VIEWS...
  • Page 28 ANDY AM/FM 12/24 COMPONENTS LIST...

  • Page 29: Front Pcb

    ANDY AM/FM FRONT PCB Designators Comment Footprint C800 103P S0603N C801 103P S0603N C802 225P/25V S0603N C803 103P S0603N C804 103P S0603N C805 475P/16V S0805N C806 103P S0603N C807 103P S0603N C808 104P S0603N C809 103P S0603N C810 103P S0603N...
  • Page 30 ANDY AM/FM Designators Comment Footprint R831 S0603N R832 S0603N R833 S0603N R834 S0603N R835 S0603N R836 S0603N R837 S0603N R838 S0603N R839 S0603N S800 AM/FM/PA S801 S802 S803 U800 TM1722 SOL-24 MAIN PCB Designators Comment Footprint *102P/J S0603N 102P/J S0603N...
  • Page 31 ANDY AM/FM Designators Comment Footprint S0603N 101P/J S0603N 101P/J S0603N 101P/J S0603N 101P/J S0603N 101P/J S0603N 101P/J S0603N 101P/J S0603N 3P/B S0603N 2P/B S0603N 101P/J S0603N 12P/J S0603N 12P/J S0603N 105P/25V S0603N 225P/25V S0603N 225P/25V S0603N 104P S0603N 103P S0603N...
  • Page 32 ANDY AM/FM Designators Comment Footprint C103 103P S0603N C104 103P S0603N C105 103P S0603N C106 103P S0603N C107 104P S0603N C108 103P S0603N C109 103P S0603N C110 103P S0603N C111 103P S0603N C112 103P S0603N C113 103P S0603N C114 103P...
  • Page 33 ANDY AM/FM Designators Comment Footprint C162 105P/25V S0603N C163 472P S0603N C164 106P/25V 1206 C165 106P/25V 1206 C166 103P S0603N C167 103P S0805N C168 103P S0805N C169 103P S0603N C170 103P S0603N C171 103P S0805N C172 103P S0603N C173 103P...
  • Page 34 ANDY AM/FM Designators Comment Footprint C221 473P S0805N C222 102P/J S0805N C223 475P/16V S0805N C224 103P S0603N C225 102P/J S0603N C226 15P/J S0603N C227 10P/J S0603N C228 10P/J S0603N C229 103P S0603N C230 475P/16V S0805N C231 103P S0603N C232 103P...
  • Page 35 ANDY AM/FM Designators Comment Footprint 470uF/25V SRB0.200(10MM) 470uF/25V SRB0.200(10MM) 220uF/35V SRB0.160(8MM) 0.22uF/16V RBM1 2.2uF/16V RBM1 330uF/35V SRB0.200(10MM) 330uF/35V SRB0.200(10MM) 100uF/25V SRB0.125(6MM) 100uF/25V SRB0.125(6MM) 100uF/25V SRB0.125(6MM) TDA2003V TO220V-V-V1.0 SIP2T2 0.5S-1-20PB SIPM20 DC-1 DC-1.0/2.5MM-V1.0 DC SW SIP2T2 CON3 CON2.0-3 EX SP PJ-302...
  • Page 36 ANDY AM/FM Designators Comment Footprint *MMBTSC2714Y SOT23 *MMBTSC2714Y SOT23 MMBTSC2714Y SOT23 *LMBT3906LT1G SOT23 LMBT3906LT1G SOT23 LMBT3906LT1G SOT23 FQP13N10 TO220-V-BCE *KTC3875S(GR) SOT23 *KTC3875S(GR) SOT23 KTC3875S(GR) SOT23 2SC2314(F) TO126-V-ECB-V1.0 ST2SC3202Y TO92-ECB KTC3875S(GR) SOT23 DTC114YKA SOT23 2SC2714(QY) SOT23 2SC5065(MAY) SC70 2SD1048(X6) SOT23 RT1N141U...
  • Page 37 ANDY AM/FM Designators Comment Footprint 470R S0603N 470R S0603N 470R S0603N 470R S0603N S0603N *10K S0603N *10K S0603N *10K S0603N S0603N S0603N S0603N S0603N *10K S0603N *10K S0603N S0603N S0603N S0603N *47K S0603N *47K S0603N *47K S0603N S0603N S0603N 470R...
  • Page 38 ANDY AM/FM Designators Comment Footprint 100R S0603N S0603N S0603N 330K S0603N 330K S0603N 470R S0603N S0603N S0603N S0603N 120K S0603N 1206 S0603N 390R S0603N 390R S0603N 220R S0603N 220R S0603N 220R S0603N S0603N S0603N R100 S0603N R101 S0603N R102 100R...
  • Page 39 ANDY AM/FM Designators Comment Footprint R140 S0603N R141 S0603N R142 S0603N R143 S0603N R144 S0603N R145 S0603N R146 S0603N R147 S0603N R148 S0603N R149 S0603N R150 S0805N R151 S0603N R152 S0603N R153 S0603N R154 S0603N R155 S0603N R156 100K S0603N...
  • Page 40 ANDY AM/FM Designators Comment Footprint R199 S0603N R200 S0603N R201 S0603N R202 390R S0603N R203 S0603N R204 S0805N R205 S0603N R206 *47K S0603N R207 330R S0805N R208 S0603N R209 24K(1%) S0603N R211 S0603N NJM2904V SSOP8 NJM2904V SSOP8 TA31136FN SSOP16 BL1551...