AT-130/E/140 Service manual - radiomanual.info

1 HF AUTOMATIC ANTENNA Service manual describes the latest Service informationfor the AT-130/AT-130E/AT-140HF AUTOMATIC ANTENNATUNER at the time of the antenna tuner to an AC outlet or to a DCpower supply that uses more than 16 V. This will ruin theantenna NOTexpose the antenna tuner to rain, snow or any NOTreverse the polarities of the power supply whenconnecting the antenna PARTSBe sure to include the following four points when orderingreplacement parts:1. 10-digit order numbers2. Component part number and name3. Equipment model name and unit name4. Quantity required<SAMPLE ORDER>1140003000 IC PD78212 CWAT-130 TUNER UNIT 5 pieces8810000660 Screw PH M4 12 SUS AT-130 Top case10 piecesAddresses are provided on the inside back cover for NOTES1. Make sure a problem is internal before disassembling theantenna NOTopen the antenna tuner until the antenna tuneris disconnected from its power NOTforce any of the variable components.

2 Turnthem slowly and NOTshort any circuits or electronic parts. An insu-lated tuning tool MUSTbe used for all NOTkeep power ON for a long time when the anten-na tuner is instructions of test equipment thoroughlybefore connecting equipment to the antenna upgrade quality, any electrical or mechanical parts andinternal circuits are subject to change without notice , Icom Inc. and are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom,Germany, France, Spain, Russia and/or other OF CONTENTSSECTION 1 SPECIFICATIONSSECTION 2 INSIDE VIEWSECTION 3 CIRCUIT DESCRIPTIONSECTION 4 ADJUSTMENT PROCEDURESSECTION 5 PARTS LISTSECTION 6 MECHANICAL PARTSSECTION 7 SEMI-CONDUCTOR INFORMATIONSECTION 8 BOARD LAYOUTS8 - 1 TUNER UNIT .. 8 - 18 - 2 manual UNIT (AT-130E ONLY) .. 8 - 2 SECTION 9 BLOCK DIAGRAMSECTION 10 VOLTAGE DIAGRAM1 - 1 SECTION 1 SPECIFICATIONS GENERAL Number of memory channels: 45 Frequency range: MHz to 30 MHz with a 7 m (23 ft) or longer antenna element Maximum input power: 150 W PEP100 W continuous Input impedance: 50 Minimum operating input power: 5 to 15 W Automatic tuning time:(General)Approx.

3 2 to 3 sec. (max. 15 sec.)(Returning to a memorized frequency)Approx. 1 sec. Tuning accuracy (VSWR): Less than : 1(after tuning; except for multiples of 1 2 ) Antenna required: Marconi-type with suitable RF ground(More than 7 m (23 ft) is suggested) Power supply required: DC V 15 % (supplied from HF transceiver) Current drain: Less than 2 A Usable temperature range: 30 C to +60 C; 22 F to +140 F Dimensions (projections not included): 230(W) 80(H) 340(D) mm93 32(W) 33 32(H) 1313 32(D) in Case construction: Weatherproof Weight:(AT-130/AT-140)Approx. kg; 5 lb 8 oz(AT-130E)Approx. kg; 6 lb Control cable: OPC-420(For [IC-77/78])OPC-566(For [IC-M700 PRO], [IC-M710/RT])OPC-1147 (For [IC-M802])OPC-1186 (For [IC-F7000])All stated specifications are subject to change without notice or - 1 SECTION 2 INSIDE VIEW+5V regulator(IC8: TA7805S)Comparator(IC10: TA75393S)Mounting plateAntenna cable receptacleDip switch(SW3: SSGM18049A)Dip switch(SW4: SSGM17012A)Dip switch(SW5: SSGM18049A)LED's(DS1-DS23: EL204HD)Antenna terminalMode switch(SW1: MS621C)Control cablereceptacleCPU(IC1: mPD78212CW-613)Ground terminalWater drain screw+5V regulator(IC8: TA7805S)Comparator(IC10: TA75393S)Mounting plateAntenna cable receptacleDip switch(SW3: SSGM18049A)Dip switch(SW4: SSGM17012A)Dip switch(SW5: SSGM18049A)LED's(DS1-DS23: EL204HD)Antenna terminalMode switch(SW1: MS621C)Control cablereceptacleCPU(IC1: PD78212CW-613)Ground terminalWater drain screwPhoto.

4 AT-1403 - 1 SECTION 3 CIRCUIT DESCRIPTION3-1 GENERALAn 8-bit microprocessor controls the AT-130/AT-130E/AT-140. The tuner matches the antenna system to the trans-ceiver by using four kinds of detector circuits. These circuitsare:(1) FORWARD POWER DETECTOR(2) SWR DETECTOR(3) PHASE DETECTOR(4) IMPEDANCE DETECTORD etailed descriptions of each circuit as follows. GENERAL3-2 FORWARD (FWD) POWER DETECTORCIRCUITThis circuit ensures the input power from the transceiver islow enough to be handled by the attenuator within the the TUNER UNIT, L1 and D1 detects the RF input and C3 divide the detected voltage and feed it to SWR DETECTOR CIRCUITThe reflected power from the antenna system provides adetection voltage doubler, consisting of D13 and D14, rectifiesthis voltage and passes through the voltage divider formedby R36 and SWR data from voltage divider feed into IC1, TheCPU.

5 The CPU controls the setting of the coils and capaci-tors in the matching network. FORWARD POWER DETECTOR CIRCUIT SWR DETECTOR CIRCUIT3 - 23-4 PHASE DETECTOR CIRCUITThis circuit consists of L2, L3 and IC9. The phase detector spurpose is to detect reactance components and provide apure output of IC9 is a reference voltage of approximately 4 V when the load of L3 is a pure resistance with no reac-tance. An inductive load produces an output voltage fromIC9 which is lower than the reference voltage, whereas, acapacitive load produces an output voltage higher than thereference voltage. IC10a amplifies the output voltage andpasses it to comparator IMPEDANCE DETECTOR CIRCUITThe tuner uses an attenuator to reduce the transmit powerto a very low level. The low power minimizes the risk of inter-ference to other stations while matching an antenna to VSWR at the input terminal is usually close to 1:1 evenwith a large change of impedance at the attenuator outputdue to the 16 dB of isolation between the input and thematching circuit uses the constant voltage at D7 and D8 on TheTUNER unit as a reference.

6 If the impedance of the attenu-ator output is higher than 50 , the detected voltage by D11and D12 is HIGH. If the impedance is lower than 50 , thevoltage is LOW. Both the reference and detected voltagesfeed to comparator LOGIC CIRCUITIC1, The CPU, controls the antenna matching network. TheCPU receives +5V through IC8 when DC power is applied tothe tuner. This voltage initializes the CPU. The stored pro-gram in the Read Only Memory (ROM) IC12 sets each relayto the initial tuning program begins only if the START line is at LOWlevel. RL1 and RL2 activate when RF power at the inputantenna connector from the transceiver is present at anappropriate level (See Section 6-2).The data from the previously described detectors (input RFpower, reflected RF power, phase difference, impedance dif-ference) feed into the CPU. The coil data then passes toIC4, the capacitor data to IC3 and the control data to IC2according to the tuning ANTENNA CURRENT DETECTOR CIRCUIT( manual UNIT Europe version only)On the manual UNIT, L319 detects the antenna rectifies the detected voltage and feed it to J301through low-pass filter comprising R305, C305 and C306.

7 PHASE DETECTOR CIRCUIT IMPEDANCE DETECTOR CIRCUIT ANTENNA CURRENT DETECTOR CIRCUIT4 - 1 SECTION 4 ADJUSTMENT PROCEDURESDC power supplyIcomTransceiverAntenna connectorTuner receptacle (Refer to below)[E][ANTC][ ][GND][STAR][KEY]J9 OPC-566J91234orAT-130/EAT-140[E][ANTC][ ][GND][STAR][KEY]J9 OPC-4201 1. *E or ANTC 2. V 9. START10. KEY234or1234[E][ANTC][ ][GND][STAR][KEY]J9 OPC-11471 1. KEY 2. START 3. V 4. *E or ANTC 1. KEY 2. START 3. V 4. *E or ANTC *Depened on versions234or123456[E][ANTC][ ][GND][STAR][KEY]J9 OPC-11861 1. *E or ANTC 2. V 9. START10. KEY2910or123456789101234 CONNECTION4-1 PREPARATION REQUIRED TEST EQUIPMENTEQUIPMENTDC power supplyOscilloscopeTransceiverGRADE AND RANGEO utput voltage: Depended on connecting transceiver (Ex; V DC)Current capacity: Depended on connecting transceiver (Ex; 30 A or more)Frequency range: DC 20 MHzMeasuring range: 10 V: Icom transceiver4 - 24-2 ANTENNA TUNER ADJUSTMENTSPHASEDETECTORCIRCUITIMPEDANCE DETECTORCIRCUITFORWARDDETECTORCIRCUITSWR DETECTORCIRCUITADJUSTMENTADJUSTMENTADJUS TMENT CONDITIONMEASUREMENTVALUEPOINTUNITLOCATI ONUNITADJUST1234 S1: PRESET S4-7: OFF Short pins of J13.

8 Disconnect P6 from J6. Ground J15 with a jumper wire. TRANSCEIVERD isplay freq. : MHzOutput power : 10 W (carrer only)Transmitting Same as above Same as above Same as aboveConnect an oscillo-scope to the checkpoint pin 2 of an oscillo-scope to checkpoint pin 3 of an oscillo-scope to checkpoint pin 1 of an oscillo-scope to checkpoint pin 4 of V (Tune R194 justbefore droped.)5 V (Tune C7 justbefore drope.) V0 VR56C7 VerifyVerifyTUNERTUNERNOTE: After adjustment, remove the jumper wires from J15 and ground. After adjustment, Disconnect pins of J13. After adjustment, reconnect P6 to J6 and set S1 to [NORMAL] detector adjustmentPhase detector adjustment16 LED's[TUNER UNIT][TUNER UNIT]IC11140003000IC PD78212CW-613 TIC21130006930 ICTC74HC574 APTIC31130006930 ICTC74HC574 APTIC41130006930 ICTC74HC574 APTIC51130005200 ICTC74HC393 APTIC61130000050 ICTC4013 BPTIC71110005750 ICS-80841 CLY-BTIC81110002020 ICTA7805 STIC101110000060 ICTA75393 STIC111160000100IC PA2004 CTIC121160000100IC PA2004 CTIC131160000100IC PA2004 CTIC141160000100IC PA2004 CTQ11560000110 FET2SK241-GRTQ21530000150 TRANSISTOR2SC2668-OTQ31590000350 TRANSISTORRN1204TQ41530000110 TRANSISTOR2SC2458-GRTQ51530000110 TRANSISTOR2SC2458-GRTQ71510000080 TRANSISTOR2SA1048-GRTQ81530000110 TRANSISTOR2SC2458-GRTQ91590000350 TRANSISTORRN1204TQ101530000110 TRANSISTOR2SC2458-GRTQ111530000110 TRANSISTOR2SC2458-GRTD11710000021 DIODE1N60 <AMI>TD21710000580 DIODE1SS265TD31710000580 DIODE1SS265TD41710000160 DIODE1SS133TD51710000021 DIODE1N60 <AMI>TD61710000021 DIODE1N60 <AMI>TD71710000021 DIODE1N60

9 <AMI>TD81710000021 DIODE1N60 <AMI>TD91710000160 DIODE1SS133TD101710000160 DIODE1SS133TD111710000021 DIODE1N60 <AMI>TD121710000021 DIODE1N60 <AMI>TD131710000021 DIODE1N60 <AMI>TD141710000021 DIODE1N60 <AMI> mountD571710000060 DIODE1SS55-T4TD581710000060 DIODE1SS55-T4TD591710000060 DIODE1SS55-T4TD601710000060 DIODE1SS55-T4TD611710000060 DIODE1SS55-T4TD621710000060 DIODE1SS55-T4TD631710000060 DIODE1SS55-T4TD641710000060 DIODE1SS55-T4TD651710000060 DIODE1SS55-T4TD661710000060 DIODE1SS55-T4TD671710000060 DIODE1SS55-T4TD681710000060 DIODE1SS55-T4TD691710000060 DIODE1SS55-T4TD701710000060 DIODE1SS55-T4TD711710000060 DIODE1SS55-T4TD721710000060 DIODE1SS55-T4TD731710000060 DIODE1SS55-T4TD741710000060 DIODE1SS55-T4TD751710000060 DIODE1SS55-T4TD761710000060 DIODE1SS55-T4TD771790001780 DIODEMA700TD781710000160 DIODE1SS133TD791710000160 DIODE1SS133TD801790001780 DIODEMA700TD811790001780 DIODEMA700TD821790001780 DIODEMA700TD831790001780 DIODEMA700TD841790001780 DIODEMA700TX16050006930 XTALRF-4A3 FAT NKD ( MHz)TL16140000100 COILLR-22 ATL26140000930 COILLR-116TL36140000930 COILLR-116TL46140000070 COILLR-19TL56180003300 COILT6-222J ( )TL66110002750 COILLA-459TL76110002760 COILLA-460TL86110002770 COILLA-461TL96110002780 COILLA-462TL106110002790 COILLA-463TL116110002800 COILLA-464TL126110002810 COILLA-465TL136110002820 COILLA-466TL146110002830 COILLA-467TL156110002840 COILLA-468TL166110002850 COILLA-469TL176110002860 COILLA-470TL186180000900 COILLAL 03NA 101 KTL196910000670 COILBL01RN1A1D2B (BL01RN1-A62)[AT-130E] onlyTL206910000670 COILBL01RN1A1D2B (BL01RN1-A62)TL226910000670 COILBL01RN1A1D2B (BL01RN1-A62)TL236910000670 COILBL01RN1A1D2B (BL01RN1-A62)

10 TL246180000900 COILLAL 03NA 101 KTL256180000900 COILLAL 03NA 101 KTL266910000670 COILBL01RN1A1D2B (BL01RN1-A62)TL276910000670 COILBL01RN1A1D2B (BL01RN1-A62)TL286180000900 COILLAL 03NA 101 KTL296180000900 COILLAL 03NA 101 KTL306910000670 COILBL01RN1A1D2B (BL01RN1-A62)TL316180001220 COILLAL 04NA 100 KTL326180000880 COILLAL 03NA 100 KTL336180002270 COILLAL 03NA 470 KTR17010004190 RESISTORR20J 1 k TR27010004670 RESISTORR50XJ 22 TR37010004670 RESISTORR50XJ 22 TR47010003340 RESISTORELR20J 330 TR57010003740 RESISTORELR20J 470 k TR67010003240 RESISTORELR20J 47 TR87010004320 RESISTORR20J 10 k TR97010004230 RESISTORR20J k TR107010004410 RESISTORR20J 47 k TR117010003440 RESISTORELR20J k TR127010003480 RESISTORELR20J k TR137010000290 RESISTORELR25J 220 T5 - 1 SECTION 5 PARTS side (T: Mounted on the Top side, B: Mounted on the Bottom side)[TUNER UNIT]R147010003950 RESISTORR20J 10 TR157010004320 RESISTORR20J 10 k TR167070000730 RESISTORCRH200 R-02J 330 TR177070000731 RESISTORERG2SJ 331 (330 )TR187070000721 RESISTORERG2SJ 271 (270 )TR197070000291 RESISTORERG2SJ 221 (220 )TR207070000291 RESISTORERG2SJ 221 (220 )TR217070000291 RESISTORERG2SJ 221 (220 )TR227070000301 RESISTORERG1SJ 331 (330 )TR237070000301 RESISTORERG1SJ 331 (330 ) TR247070000711 RESISTORERG1SJ 271 (270 ) TR257010004410 RESISTORR20J 47 k TR267010004410 RESISTORR20J 47 k TR277010003440 RESISTORELR20J k TR287010004690 RESISTORR50XJ 47 TR297010004690 RESISTORR50XJ 47 TR307010004690 RESISTORR50XJ 47 TR317010004690 RESISTORR50XJ 47 TR327010004030 RESISTORR20J 47 TR3370100044