FT100D.pdf

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1、1 2003 VERTEX STANDARD CO., LTD. E089890A Technical Supplement FT-100/-100D HF realignment should not be done until after the faulty component has been replaced. We recommend that servicing be performed by autho- rized Yaesu service technicians, who are experienced with the circuitry and fully equip

2、ped for repair and alignment. If a fault is suspected, contact the selling dealer for in- structions regarding repair. Authorized Yaesu service technicians have the latest modification information, and realign all circuits and make compete performance checks to ensure compliance with the factory spe

3、cifications after repairs. Those who do undertake any of the following align- ments are cautioned to proceed at their own risk. Prob- lems caused by unauthorized attempts at realignment are not covered by the warranty policy. Also, Yaesu must re- serve the right to change circuits and alignment proc

4、e- dures, in the interest of improved performance, without notifying owners. Under no circumstances should any alignment be attempted unless the normal function and operation of the transceiver are clearly understood, the cause of the malfunction has been clearly pinpointed and any faulty components

5、 replaced, and the need for realign- ment determined to be absolutely necessary. The following test equipment (and thorough familiari- ty with its correct use) is necessary for complete realign- ment. Correction of problems caused by misalignment resulting from unauthorized adjustments made with im-

6、 proper test equipment is not covered by warranty. Al- though most steps do not require all of the equipment list- ed, the interaction of some adjustments may require that more complex adjustments be performed afterwards. Do not attempt to perform only a single step unless it is clear- ly isolated e

7、lectrically from all other steps. Rather, have all test equipment ready before beginning, and follow all of the steps in a section in the order they are presented. Required Test Equipment H Digital DC Voltmeter (high-Z, 1 M/V) H DC Ammeter H AC Voltmeter H RF Standard Signal Generator w/ calibrated

8、output and dB scale, 0 dB = 0.5 V H AF Signal Generator with calibrated output H Frequency Counter H 50- Dummy Load (150 250 watts) H 50- Resistor, 1 Watt (low-power dummy load for cir- cuit termination) H 16.6- Dummy Load (150 watts) H In-Line Wattmeter (150 250 watts, 50-) H Linear Detector H RF A

9、ttenuator (150 watts, 50 dB) or sampling coupler H Spectrum Analyzer good to at least 1 GHz H SINAD Meter Alignment Preparation & Precautions A 50- dummy load and in-line wattmeter must be con- nected to the antenna jack in all procedures that call for transmission, except where specified otherwise.

10、 Correct alignment is not possible with an antenna. Except where specified otherwise, the transceiver should be tuned to 14.2000 MHz, USB mode, and these controls set as indi- cated: H AF fully CCW H SQL/RF fully CCW The transceivers Alignment Routine is required for some procedures. If an Alignment

11、 Routine cannot be se- lected, power may have to be switched off then back on to re-enable menu selection. To begin, turn the transceiver off. Press the A, B, and C keys together while turning the transceiver on again, then press and hold the FUNC key. In the alignment procedure, each alignment para

12、meter is selected by rotating the main DIAL. To exit the align- ment routine, press the FUNC key. After performing the system alignment in its entirety, individual settings can be returned to and adjusted should the need arise. Read each step to determine if the same test equipment used in the previ

13、ous step will be required. If not, remove the test equipment (except dummy load and wattmeter, if connected) before proceeding. Correct alignment requires that the ambient temperature be the same as that of the transceiver and test equipment, and that this temperature be held constant within 68 86F

14、(20 30C). If the trans- ceiver is brought into the shop from hot or cold air, it should be allowed time for thermal equalization with the environment before alignment. Alignments must only be made with oscillator shields and circuit boards firmly af- fixed in place. Also, the test equipment must be

15、thoroughly warmed up before beginning. Notes: Signal levels in dB referred to in alignment are based on 0 dB = 0.5 V (closed circuit). Table Note: DC voltages should be within 10 % of those listed in the voltage tables. 6 Alignment Local Oscillator Adjustments Reference Frequency Adjustment H Remove

16、 the coaxial plug from J2005 and connect the frequency counter across its socket. H Adjust trimmer capacitor TC2801 or X2901 (use TCXO- 8) for 57.279999 MHz 60 Hz or 30 Hz (use TCXO-8) on the frequency counter. H Disconnect the frequency counter, and replace the plug into J2005. 2nd Local Adjustment

17、 H Connect the 50- resistor and RF millivoltmeter to J2005. H Adjust T2003 and T2004 for maximum indication on the RF millivoltmeter (at least 180 mV). H Disconnect the frequency counter, and replace the plug into J2005. 3rd Local Adjustment H Set the RF power to the minimum (using Menu #21), and se

18、lect the CW mode. Connect the 50- resistor and RF millivoltmeter to J2004. H Key the transmitter, and adjust T2001 and T2002 for maximum indication on the RF millivoltmeter (at least 80 mV). H Replace the RF millivoltmeter with the frequency counter, and confirm that the local frequency is 11.705 MH

19、z (1 kHz) on the frequency counter. H Disconnect the frequency counter, and replace the plug into J2004. PLL Adjustments VCO VCV Adjustment H Connect the DC voltmeter to TP2001, and referring to table below, tune the transceiver to each frequency list- ed. Then confirm that the correct voltage is pr

20、esent, or adjust the listed component for the required voltage. Tune to:Adjust/ConfirmFor 449.99999 MHzAdjust TC20057.4 V 0.1 V 420.00000 MHzConfirm2.0 V 4.8 V 381.99999 MHzAdjust TC20067.4 V 0.1 V 108.00000 MHzConfirm1.2 V 4.0 V 245.99999 MHzAdjust TC20047.4 V 0.1 V 60.00000 MHzConfirm0.8 V 4.0 V 1

21、97.99999 MHzAdjust TC20037.4 V 0.1 V 33.00000 MHzConfirm1.2 V 4.0 V 170.99999 MHzAdjust TC20027.4 V 0.1 V 15.00000 MHzConfirm1.4 V 4.2 V 14.99999 MHzAdjust TC20017.4 V 0.1 V 0.03000 MHzConfirm1.5 V 4.0 V 1st Local Output Level H With the 50- resistor and RF millivoltmeter connect- ed to the J2003, a

22、nd referring to table below, tune the transceiver to each frequency listed, then confirm that the required output level is present at the listed frequency. Tune to:For 14.175 MHz11 dBm 3 dB 52.050 MHz11 dBm 3 dB 146.500 MHz11 dBm 3 dB 440.500 MHz11 dBm 3 dB PA Unit Adjustments Before beginning, remo

23、ve the coaxial plugs from J3503 and J3005, and connect 50- resistors across the sockets for these jacks (shunt to ground at each jack). HF/50MHz Driver Section Idling Current H Remove the coaxial plug from J3001, and connect a 50- resistor across its socket. Remove the jumper connec- tor at J3504. C

24、onnect the ammeter to J3504 (pin 1: “” lead, pin 2: “+” lead). H Tune the transceiver to the 14.2000 MHz and select the USB mode. H Key the transmitter, and adjust VR3004 for a reading of 50 55 mA on the ammeter. H Disconnect the ammeter, and reinstall the jumper con- nector at J3504. H Remove the j

25、umper connector at J3003. Connect the am- meter to J3003 (pin 1: “” lead, pin 2: “+” lead). H Key the transmitter, and adjust VR3001 for a reading of 1.1 A on the ammeter (within 60 mA). H Disconnect the ammeter, and reinstall the jumper con- nector at J3003. HF/50 MHz Final Idling Current Adjustmen

26、t H Leave the coaxial plug disconnected from J3001, and be sure that the 50- resistor is connected across its socket. Connect the ammeter between the transceivers 13.8VDC connector and the DC power supply. H Tune the transceiver to the 14.2000 MHz and select USB mode. H Key the transmitter, and adju

27、st VR3002 for a reading of 1.6 A on the ammeter (within 50 mA). H Adjust the VR3003 for a reading of 2.1 A (50 mA) on the ammeter. VHF/UHF Driver Section Idling Current H Remove the coaxial plug from J3501, and connect a 50- resistor across its socket. Remove the jumper connec- tor at J3502. Connect

28、 the ammeter to J3502 (pin 1: “” lead, pin 2: “+” lead). 7 Alignment H Tune the transceiver to the 144.5000 MHz, and select the USB mode. H Key the transmitter, and adjust VR3501 for 1.5 1.6 A on the ammeter. H Disconnect the ammeter, and reinstall the jumper con- nector at J3502. VHF/UHF Final Idli

29、ng Current Adjustment H Leave the coaxial plug disconnected from J3501, and be sure that the 50- resistor is connected across its socket. Connect the ammeter between the transceivers 13.8VDC connector and the DC power supply. H Tune the transceiver to 144.5000 MHz, and select the USB mode. H Key the

30、 transmitter, and adjust VR3502 for 2.3 A 0.1 A on the ammeter. H Disconnect the ammeter, and reinstall the jumper con- nector at J3501. TX and RX IF Adjustments HF Band RX IF Sensitivity (Coarse Adjust) H Preset “Alignment” Menu items F-03 HF RX IF G, F- 04 50 RX IF G, F-05 144 RX IF G, and F-06 43

31、0 RX IF G to “194” if they are not already set to that value. H Connect the RF signal generator to the HF/50MHz an- tenna jack, and connect a 4- speaker and AC voltme- ter to the EXT SP jack. H Set the transceiver to 14.10000 MHz, and select the USB mode. Inject a signal from the signal generator to

32、 14.10000 MHz so as to get a reading on the AC voltme- ter. H Adjust T1023, T1025, T1027, T1028, T1030, T1032 T1037, and T1039 in succession several times for maxi- mum indication on the AC voltmeter. 1st Mixer Balance H Tune the transceiver to 14.10000 MHz, but inject no sig- nal to the antenna jac

33、k. H Adjust VR1001 for minimum noise output from the speaker. HF/50 MHz Band RX IF Sensitivity H Connect the RF signal generator to the HF/50MHz an- tenna jack, and leave the 4- speaker and AC voltme- ter connected to the EXT SP jack. H Inject a signal from the signal generator at 0 dB on 14.10000 M

34、Hz, and receive in the USB mode. H Adjust T1023, T1025, T1027, T1028, T1030, T1032 T1037 and T1039 in succession several times for maxi- mum indication on the AC voltmeter. H Disconnect the AC voltmeter, and connect the SINAD meter to the EXT SP jack. Select the FM mode. H Inject a signal from the s

35、ignal generator at 0 dB on 14.10000 MHz (3.5 kHz deviation of a 1 kHz tone), and adjust T1025, T1027, and T1039 for optimum SINAD. 144/430 MHz Band RX IF Sensitivity H Connect the RF signal generator to the VHF/UHF an- tenna jack, and connect the 4- speaker and AC volt- meter to the EXT SP jack. Sel

36、ect the USB mode. H Inject a signal from the signal generator at 0 dB on 145.10000 MHz, and adjust T1003, T1006, T1009, and T1012 in succession several times for maximum indi- cation on the AC voltmeter. 144 MHz Band Front End Gain (Preset) H Set “Alignment” menu item F-01 144 RF GAIN to “166” on th

37、e transceivers display. 430 MHz Band Front End Gain (Preset) H Set “Alignment” menu item F-02 430 RF GAIN to “166” on the transceivers display. HF Band RX IF Gain Adjustment H Connect the RF signal generator to the HF/50 MHz an- tenna jack H Set the transceiver to 14.200 MHz and select the USB mode.

38、 H Inject a RF signal from the signal generator at +12.0 dB on 14.200 MHz. H Select “Alignment” menu item F-03 HF RX IF G and adjust the main DIAL for a 1-dot S-meter deflection. 50 MHz Band RX Gain Adjustment H Connect the RF signal generator to the HF/50 MHz an- tenna jack H Set the transceiver to

39、 52.0000 MHz, and select the USB mode. H Inject an RF signal from the signal generator at +4.0 dB on 52.000 MHz. H Select “Alignment” menu item F-04 50 RX IF G and adjust the main DIAL for a 1-dot S-meter deflection. 144 MHz Band RX Gain Adjustment H Connect the RF signal generator to the VHF/UHF an

40、- tenna jack. H Set the transceiver to 145.000 MHz, and select USB mode. H Inject an RF signal from the signal generator at +1.0 dB on 145.000 MHz. 8 Alignment H Select “Alignment” menu item F-05 144 RX IF G and adjust the main DIAL for a 1-dot S-meter deflection. 430 MHz Band RX Gain Adjustment H C

41、onnect the RF signal generator to the VHF/UHF an- tenna jack. H Set the transceiver to 435.500 MHz, and select the USB mode. H Inject an RF signal from the signal generator at +1.0 dB on 435.500 MHz. H Select “Alignment” menu item F-06 430 RX IF G and adjust the main DIAL for a 1-dot S-meter deflect

42、ion. S-meter Full Scale Alignment H Connect the RF signal generator to the HF/50 MHz an- tenna jack. H Set the transceiver to 14.200 MHz, and select the USB mode. H Inject an RF signal from the signal generator at +95dB on 14.20000 MHz. H Select “Alignment” menu item F-07 S FULL SCALE and adjust the

43、 main DIAL for a S9+60dB reading on the S-meter. Squelch Threshold Level Adjustment H Select the USB mode, and inject no signal to the anten- na jack. Leave the radio set to 14.200 MHz. H Set the SQL control to the 11 oclock position. Select “Alignment” menu item F-08 SSB SQL and adjust the main DIA

44、L so that the squelch just closes. H Set the SQL control to the 1 oclock position, and select the FM mode. Select “Alignment” menu item F-10 FM RF SQL and adjust the main DIAL so that the squelch just closes. H Set the SQL control to the 10 oclock position. Select “Alignment” menu item F-09 FM N SQL

45、 (Noise Squelch) and adjust the main DIAL so that the squelch just closes. Noise Blanker Alignment H Connect the RF signal generator to the HF/50 MHz an- tenna jack, and connect the DC voltmeter to TP1010. H Press the NB key to activate the Noise Blanker, then press and hold in the NB key for second

46、 to activate Menu #60 (NB Level). Set the Noise Blanker level to maximum. Inject an RF signal from the signal genera- tor at +20 dB. H Adjust T1029 and T1031 for minimum indication on the DC voltmeter (the voltage will be at least 3.0 V). TX Adjustments HF/50 MHz band TX IF Transformers H Connect th

47、e inline wattmeter and 50 dummy load to the HF/50 MHz antenna jack. H Use Menu #21 to set the RF power for maximum, and tune the transceiver to 14.2000 MHz. Select the CW mode. H Key the transmitter, and adjust T1008, T1011, T1014, T1020, and T1022 for maximum indication on the in- line wattmeter. 1

48、44/430 MHz band TX IF Transformers H Connect the inline wattmeter and 50 dummy load to the VHF/UHF antenna jack. H Use Menu #23 to set the 144 MHz RF power for maxi- mum, and tune the transceiver to the 145.0000 MHz. Select the CW mode. H Key the transmitter, and adjust T1018, T1021, T1024, and T102

49、6 for maximum indication on the inline watt- meter. Trap Adjustment H Remove the coaxial plug from J1012, and connect the spectrum analyzer across its socket. Tune the transceiv- er to 144.0000 MHz, and select the FM mode. H Key the transmitter, and adjust TC1001 for minimum indication on the 137.97 MHz spurious response on the spectrum analyzer. H Disconnect the spectrum analyzer, and replace the plug into J1012. CM Coupler Balance H Connect the 50- dummy load to the HF/50 MHz an- tenna jack, and connect the DC voltmeter to L5028 lead (near TC5002 side). Set the tr