Yaesu_VL-1000_VP-1000_serv.pdf

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1、VL-1000 HF realignment should, therefore, not be attempted un- less normal amplifier operation is thoroughly under- stood, the cause of the malfunction has been clearly diagnosed to involve part failure, and the faulty com- ponent has been located and replaced. We recommend that servicing be perform

2、ed by authorized Yaesu service technicians, who are ex- perienced with the circuitry and fully equipped for repair and alignment. If a fault is suspected, con- tact the dealer from whom you purchased the am- plifier for instructions regarding repair. Authorized Yaesu service technicians will, at the

3、 completion of the repair process, perform a complete performance check to ensure compliance with all factory specifi- cations. Those who undertake any of the following align- ment procedures are cautioned that they are doing so at their own risk. Problems caused by unauthorized attempts at realignm

4、ent are not covered by the war- ranty covering this product. Also, Yaesu must neces- sarily reserve the right to change circuits and/or align- ment procedures, in the interest of improved perfor- mance, without notifying owners. Required Test Equipment The following test equipment (and thorough fa-

5、miliarity with its correct use) is necessary for com- plete realignment. Correction of problems caused by misalignment resulting from unauthorized adjust- ments and/or made with improper test equipment is not covered by our warranty. Although most align- ment procedures documented below do not requi

6、re all of the listed test equipment at any one time, the interaction of some adjustments may require that more complex procedures must be accomplished lat- er. Do not attempt to perform only a single step un- less it clearly is isolated electrically from all other steps. It is better to have all tes

7、t equipment ready from the beginning, and follow all of the steps in a section in the order they are presented. The following test equipment is required: VP-1000 Matching Power Supply FT-920 or other 100W transceiver DC Ammeter Control Cables ALC (RCA-RCA) Cable In-line Wattmeter (50 , 2 kW) (Connec

8、t between Antenna Jack 1 and 50 Dummy Load) 50 Dummy Load (2 kW) (Connect to In-Line Wattmeter) 75 Dummy Load (2 kW) (Connect to Antenna Jack 2) Preparation after completing this alignment, repeat the process on the right PA Unit, as instructed be- low. Disconnect the wires connected to J5001 and J5

9、007 of the right PA Unit, and move them safe- ly out of the way. Turn on the power supply, amplifier, and trans- ceiver. Preset VR5001, VR5002, VR5003 and VR5004 on the left PA Unit fully counterclock- wise. Key the transmitter in the SSB mode (with zero drive power), and adjust VR5003 for 210 mA, V

10、R5004 for 400 mA,VR5001 for 610 mA, and VR5002 for 800 mA on the DC Ammeter. Try to make these adjustments in order, and as quick- ly as possible. When done, turn off the power supply, amplifier, and transceiver. Now remove both +48V wires (one each from J5001 and J5007) from the left PA Unit. The n

11、ext steps will be performed on the right PA Unit. Connect both +48V wires (one each to J5001 and J5007) on the right PA Unit. Turn on the power supply, amplifier, and transceiver. Preset VR5001, VR5002, VR5003 and VR5004 on the right PA Unit fully counterclockwise. Key the transmitter in the SSB mod

12、e (with zero drive power), and adjust VR5003 for 210 mA, VR5004 for 400 mA,VR5001 for 610 mA, and VR5002 for 800 mA on the DC Ammeter. Try to make these adjustments in order, and as quickly as possible. Now connect both +48V wires (one each to J5001 and J5007) on the left PA Unit. All +48V wires sho

13、uld now be connected on both PA Units. VL-1000 Technical Supplement Alignment Forward ALC Adjustment (High Power) Tune the transceiver to 14.050 MHz, FM mode, and set the DRIVE or RF PWR control fully clockwise. Press and hold in the INPUT switch on the front panel of the VL-1000 for second. This in

14、itiates the “ALC Alignment” mode. Start with the transceivers DRIVE or RF PWR control fully counter-clockwise, then rotate the DRIVE or RF PWR control to the fully clock- wise position while transmitting. If the power output from the amplifier (as dis- played on the AVG PWR meter) does not reach 100

15、0 W because of the effect of the VL-1000s ALC voltage at full excited drive, keep the transceiv- ers DRIVE or RF PWR control fully clockwise, then press and hold in the DISPLAY 2 key until the power output from the amplifier reaches 1000 Watts. If, on the other hand, the ALC voltage from the VL-1000

16、 does not cause the exciter drive to be controlled such that the power output from the amplifier limits at 1000 Watts, reduce the setting of the DRIVE or RF PWR control to that the out- put power is 1000 Watts. Now press and hold in the DISPLAY 2 key until you observe the ampli- fier output just beg

17、in to fall below 1000 Watts. At this point, advance the DRIVE or RF PWR con- trol fully clockwise, and press/hold in the DIS- PLAY 1 or DISPLAY 2 key so as to achieve 1000 Watts of power output. If the above adjustments are not successful, it is possible that the Forward ALC potentiometer, VR1001, i

18、s maladjusted. While transmitting, slowly rotate VR1001 in the direction that pro- vides improved output control (either more or less ALC voltage, as observed on the transceiv- ers ALC meter). When 1000 Watts of output VR5004: Idling Current (800 mA) VR5003: Idling Current (610 mA) VR5002: Idling Cu

19、rrent (800 mA) VR5001: Idling Current (610 mA) J5001: Remove this wire when adjusting the other PA Unit J5007: Remove this wire when adjusting the other PA Unit PA Unit Alignment Points VL-1000 Technical Supplement Alignment VR1002: Reverse ALC (Slight power turn-down into 75 dummy load) VR1001: For

20、ward ALC (High Power) (PO=1000 W on AVG PWR meter) CNTL Unit Alignment Points power are obtained, the FT-920 transceivers ALC meter should have six bars illuminated. Other transceivers should show mid-scale indication on their ALC meter. Unkey the transmitter when adjustment is suc- cessful. Now pre

21、ss and hold in the INPUT switch on the VL-1000 front panel for second to exit the ALC alignment mode. If your VL-1000 is after prod. lot 002, key the transmitter with the DRIVE or RF PWR con- trol fully clockwise, adjust VR2001 for 1000 Watts on the AVG PWR meter. Forward ALC Adjustment (Low Power)

22、The transceiver should be left at 50.100 MHz in the FM mode, with the transceivers DRIVE or RF PWR control fully clockwise. Press the LOW switch on the front panel of the VL-1000. Now press and hold in the INPUT switch for second so as to enter the “ALC Align- ment” mode once again. Key the transmit

23、ter, and press the DISPLAY 1 (to increase the power) or the DISPLAY 2 key (to decrease the power) so as to achieve 500 Watts output power as displayed on the AVG PWR meter. Return the transceiver to the receive mode. Press and hold in the INPUT switch for second to exit the ALC Alignment mode. Rever

24、se ALC Adjustment Press the ANT switch on the front panel to select ANTENNA 2 (to which the 75 dummy load is connected). With the transceiver still set to 50.100 MHz in the FM mode, set the DRIVE or RF PWR con- trol of the transceiver fully clockwise. If neces- sary, press the LOW switch to select h

25、igh power operation. Press and hold in the INPUT switch for sec- ond to enter the “ALC Alignment” mode. VL-1000 Technical Supplement Alignment Key the transmitter, and adjust VR1002 such that the power output (as indicated on the AVG PWR meter) just begins to fall below 1000 Watts of power output. Y

26、ou may also watch the exciters ALC meter, and adjust VR1002 to the point where the ALC meter just begins to deflect be- yond the point set in the “Forward ALC” sec- tion. This sets the threshold for SWR protection at 1.5:1 SWR. Unkey the transmitter, and press and hold in the INPUT switch for second

27、 to exit the ALC Alignment mode. Antenna Tuner Variable Capacitor Alignment If a new Antenna Tuner Unit must be installed, or if the tuning capacitors and/or motors must be replaced, the position of the capacitors on the mo- tor shafts must be aligned. The procedure is auto- mated, and follows this

28、simple procedure. Start with the VL-1000 turned off. Loosen the two screws affixing each variable ca- pacitor to the motor shafts. Be sure that both variable capacitors rotate freely on the shaft. With the amplifier off, press and hold in the OP- ERATE and DIM switches; while holding them in, turn t

29、he VL-1000 power on. Release the switches; the motors will rotate to a “Reset” position. Only one screw on each motor shaft coupling will be easily accessible at this point; tighten these screws snugly. With the TUNER switch set to on, switch the amplifier to the 10 MHz band by pressing the “10 MHz”

30、 band key on the transceiver. The motors will now rotate approximately 90 degrees, allowing access to the remaining two shaft coupling screws (one on each shaft). Tight- en these screws snugly. Capacitor alignment is now complete. VL-1000 Technical Supplement Alignment Notes: VL-1000 Technical Suppl

31、ement Block Diagram VL-1000 Technical Supplement Interconnection Diagram VL-1000 Technical Supplement CNTL Unit Circuit Diagram 0V (8.7V) RX(TX) Before measuring the voltage, disconnect the Band DATA Cable and Resetting the CPU. Measuring Conditions Display Select: Multi Meter1 OPERATE: ON DIM, LOW,

32、 ATT and TUNER: all OFF INPUT and ANT: both 1 9.0V (0V) 0V(4.9V) 9.0V 12.0V 3.8V 1.1V 4.9V 0.1V 0.1V 6.2V 0V 2.8V 12.0V 12.4V 0V 2.3V 4.9V 3.4V 2.3V 11.9V 0V 0V 12.0V 0V 4.9V 0V 0V 0V 0V 0V 0V 12.0V 0V 4.9V 4.9V 4.9V 0V 0V 1.9V 11.6V 4.9V 0V 4.9V 4.9V 4.9V 4.9V 11.9V 0V0V 0V 4.9V 4.9V 4.9V 4.9V 0V 0

33、V 0V 2.2V 4.9V 4.9V 4.9V 2.4V 4.9V 0V 0V 4.9V 0V 10.4V 11.9V 0V 0V 11.9V 0V 0V 0V(4.9V) 4.9V 0V 0V 4.9V 0V 4.1V 4.8V 2.4V 2.7V 4.8V 0V 4.9V 4.9V(0.8V) 0.3V 0.2V 4.9V 0V 4.9V 0V 0V 11.9V 0V 0V 0V 0V 0V 0V 0V 11.9V 0V 0V (10.4V) 10.5V 0V 0V 11.9V 11.2V 11.9V 11.9V VL-1000 Technical Supplement CNTL Uni

34、t Notes: VL-1000 Technical Supplement CNTL Unit J1009 J1010 J1013 IN-RL DRIVE GND J1011 +12V 12V GND LOW PS ALM ID M VD M FAN SW TX-RL PAALM BIASA GND PAALM BIASB GND FDET J1012 GND S1 S2 12V PW-SW J1014 A2 B2 C2 D2 INH2 TXD RXD GND FSET J1015 13.5V GND A1 B1 C1 D1 INH1 5V J1016 SMA0 GND SMA1 SMA2 G

35、ND SMA3 Component Side J1017 SMB0 GND SMB1 SMB2 GND SMB3 J1018 GND TX-RL J1019 GND ATT-RL TX-RL J1020 40M TC200 TC400 AC200 AC400 TUNER CALIB VSWR GND J1023 LPF0 LPF1 LPF2 LPF3 LPF4 LPF5 LPF6 LPF7 LPF8 LPF9 GND J1022 ANT3 ANT2 ANT1 ANT0 GND J1021 GND TH1 TH2 J1008 GND PTT ALC J1007 GND RET J1006 GND

36、 NO-ANT J1004 GND SMB0 VCC J1002 GND FWD2 REV2 J1005 GND FWD1 REV1 J1003 GND SMA0 VCC J1001 RL1 RL2 RL3 RL4 RL5 RL6 RL7 10M GND J1024 Parts Layout TC74HC244AF (Q1013) TD62783F (Q1002, 1003, 1004, 1005, 1008) PD74HC238G (Q1006, 1007) 24LC16BI-SN (Q1009) M51945BFP (Q1011) M5218AFP (Q1012) MB504LPF (Q1

37、016) NJM2903 (Q1019) TC7S04F (E5) (Q1014) TC7W08FU (Q1027) TK11650UTL (50) (Q1010) NJM78L09UA (8H) (Q1015) 2SA1213Y (NY) (Q1024) 2SA1563 (RL) (Q1023, 1025) 2SC4047 (ZY) (Q1017, 1018, 1020, 1021, 1022, 1026, 1028) PD78P4038GC (Q1001) 2SC2785 (Q1029) VL-1000 Technical Supplement CNTL Unit Chip Side VL

38、-1000 Technical Supplement CNTL Unit (Lot. 2) Circuit Diagram VL-1000 Technical Supplement CNTL Unit (Lot. 2) Notes: VL-1000 Technical Supplement CNTL Unit (Lot. 2) J1009 J1010 J1013 IN-RL DRIVE GND J1011 +12V 12V GND LOW PS ALM ID M VD M FAN SW TX-RL PAALM BIASA GND PAALM BIASB GND FDET J1012 GND S

39、1 S2 12V PW-SW J1014 A2 B2 C2 D2 INH2 TXD RXD GND FSET J1015 13.5V GND A1 B1 C1 D1 INH1 5V J1016 SMA0 GND SMA1 SMA2 GND SMA3 Component Side J1017 SMB0 GND SMB1 SMB2 GND SMB3 J1018 GND TX-RL J1019 GND ATT-RL TX-RL J1020 40M TC200 TC400 AC200 AC400 TUNER CALIB VSWR GND J1023 LPF0 LPF1 LPF2 LPF3 LPF4 L

40、PF5 LPF6 LPF7 LPF8 LPF9 GND J1022 ANT3 ANT2 ANT1 ANT0 GND J1021 GND TH1 TH2 J1008 GND PTT ALC J1007 GND RET J1006 GND NO-ANT J1004 GND SMB0 VCC J1002 GND FWD2 REV2 J1005 GND FWD1 REV1 J1003 GND SMA0 VCC J1001 RL1 RL2 RL3 RL4 RL5 RL6 RL7 10M GND J1024 Parts Layout TC74HC244AF (Q1013) TD62783F (Q1002,

41、 1003, 1004, 1005, 1008) PD74HC238G (Q1006, 1007) 24LC16BI-SN (Q1009) M51945BFP (Q1011) M5218AFP (Q1012) MB504LPF (Q1016) NJM2903 (Q1019) TC7S04F (E5) (Q1014) TC7W08FU (Q1027) TK11650UTL (50) (Q1010) NJM78L09UA (8H) (Q1015) 2SA1213Y (NY) (Q1024) 2SA1563 (RL) (Q1023, 1025) 2SC4047 (ZY) (Q1017, 1018,

42、1020, 1021, 1022, 1026, 1028) PD78P4038GC (Q1001) 2SC2712GR (LG) (Q1029) VL-1000 Technical Supplement CNTL Unit (Lot. 2) Chip Side VL-1000 Technical Supplement CNTL Unit * CNTL UNIT * PCB with ComponentsCB0082001 Printed Circuit BoardFR000530B1- Printed Circuit BoardFR000530C2- C 1001 CHIP CAP.0.01u

43、F50VBGRM40B103M50PTK221708171- C 1002 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1003 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1004 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1005 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1006 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1007 CH

44、IP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1008 AL.ELECTRO.CAP.10uF16V16V100M4X7TR2K461200041- C 1009 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1010 AL.ELECTRO.CAP.10uF16V16V100M4X7TR2K461200041- C 1011 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1012 CHIP CAP.0.01uF50VBGRM40B103M50PTK2217

45、08171- C 1014 CHIP CAP.0.1uF25VBGRM40B104M25PTK221408111- C 1015 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1016 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1017 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1018 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1019 CHIP CAP.0.01uF50VBGRM40B10

46、3M50PTK221708171- C 1020 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1021 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1022 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1023 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1024 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1025 CHIP CAP.0.01uF

47、50VBGRM40B103M50PTK221708171- C 1026 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1027 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1028 CHIP CAP.0.1uF25VBGRM40B104M25PTK221408111- C 1029 TANTALUM CHIP CAP.3.3uF16VTEMSVA1C335M-8RK781200211- C 1030 CHIP CAP.0.001uF50VBGRM40B102M50PTK221708051- C

48、1031 CHIP CAP.0.001uF50VBGRM40B102M50PTK221708051- C 1032 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1033 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1034 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1035 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1036 CHIP CAP.0.01uF50VBGRM40B103M50PTK

49、221708171- C 1037 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1038 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1039 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1040 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1041 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1042 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1043 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1044 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1045 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171- C 1046 CHIP CAP.0.01uF50VBGRM40B103M50PTK221708171