Super Star 2200.pdf

《Super Star 2200.pdf》由会员分享，可在线阅读，更多相关《Super Star 2200.pdf（15页珍藏版）》请在收音机爱好者资料库上搜索。

1、 CHASSIS PCMA001S CHASSIS PCMA001S Superstar 2200 Superstar 2200 Alan 88S - Argus 5000 - Cobra 148GTL DX (fake)- Colt 2400 - Falcon 2000 - Ham International 8040 - HyGain 80 - Lafayette 240FM - Mongoose 2000 - Nato 2000 - Palomar 2400 - Palomar 5000 - TriStar 797 - TriStar 848 Block Schematic Diagra

2、m PCB Layout Test Points Reading Point Adjustment Description Value TP1 CT1 Band A -80 Ch. 19.655MHz TP1 CT2 Band B -40 Ch. 19.880MHz TP1 CT3 Band C CEPT 20.105MHz TP1 CT4 Band D + 40 Ch. 20.330MHz TP1 CT12 Band E + 80 Ch. 20.555MHz TP1 CT5 Band C CEPT 20.1035MHz TP2 T1 0utput to RF local oscillator

3、 37.660-38.100MHz for CEPT TP3 VCO-Coil VCO DC Voltage 2,5 Volt 27.175MHz TP4 CT11 AM 10.695MHz TP4 CT10 LSB 10.692MHz Adjustment Description Value RECEIVER T8 RF Input T9 RF Input T10 RF Input T11 1. IF 10,7MHz T12 1. IF 10,7MHz T13 AM IF 455kHz T14 AM Detector 455kHz T6 SSB IF 455kHz T7 SSB Detect

4、or T16 FM Discriminator TRANSMITTER T1 PLL Output to Converter 37.660 - 38.100MHz for CEPT T2 PLL Output to Converter 37.660 - 38.100MHz for CEPT T3 Transmitter Output 26.965 - 27.405MHz for CEPT T4 Transmitter Output 26.965 - 27.405MHz for CEPT T5 Transmitter Output 26.965 - 27.405MHz for CEPT L16

5、Transmitter Output 26.965 - 27.405MHz for CEPT CT8 Transmitter Output USB/LSB 26.965 - 27.405MHz for CEPT CT9 Transmitter Output USB/LSB 26.965 - 27.405MHz for CEPT RV2 Bias Q8 RV11 AM/FM Output Power 10 Watt METER RV4 RF Power Meter RV8 RF S-Meter SSB (USB/LSB) RV9 RF S-Meter AM/FM . RV1 FM Modulat

6、ion +/- 2kHz RV6 SSB Modulation 18 Watt p-p RV11 AM Modulation 90% RV5 Carrier at SSB Adjust for NO Carrier Modification for SuperStar 2200 To get 10-meter, cut trace from + 5 Volt to Pin 8 and 9. To get 12-meter, cut trace from GND to Pin 7 and connect Pin 7 to + 5 Volt. Make a new VCO Block. VCO-B

7、lock for CB-Radio Re-tune both Transmitter and Receiver-part. The VCO-Block is a part of the active oscillator in TA7310P. This will opeate between 16MHz and 19MHz. Output from TA7310P Pin 9 to PLL02A is: Mixer frequency - VCO frequency. Output from TA7310P Pin 6 to Receiver/Transmitter Mixer is: Mi

8、xer frequency + VCO frequency. The new VCO-BLOCK will operate between 14MHz and 21MHz, and will then cover 10-meter, 11- meter and 12-meter. Components D1 = BB156 (Phillips) L1 = 5uH C1 = 470pF C2 = 470pF C3 = 4,7pF C4 = 12pF VCO operates between 17.115MHz (Ch.1 Band A) and 18.445MHz (Ch.40 Band E),

9、 output on Pin 6 is 36.780MHz (Ch.1 Band A) to 39.000MHz (Ch.40 Band E), and output on Pin 9 is 2.550MHz to 2.110MHz inn all band. The VCO-voltage (TP1) operates between 4,5 Volt (Ch.1 Band A) and 0,5 Volt (Ch.40 Band E). Frequency List Frequency List Ch. A = - 80 B = - 40 C = CEPT D = + 40 E = + 80

10、 01 26.065 26.515 26.965 27.415 27.865 02 26.075 26.525 26.975 27.425 27.875 03 26.085 26.535 26.985 27.435 27.885 04 26.105 26.555 27.005 27.455 27.905 05 26.115 26.565 27.015 27.465 27.915 06 26.125 26.575 27.025 27.475 27.925 07 26.135 26.585 27.035 27.485 27.935 08 26.155 26.605 27.055 27.505 27

11、.955 09 26.165 26.615 27.065 27.515 27.965 10 26.175 26.625 27.075 27.525 27.975 11 26.185 26.635 27.085 27.535 27.985 12 26.205 26.655 27.105 27.555 28.005 13 26.215 26.665 27.115 27.565 28.015 14 26.225 26.675 27.125 27.575 28.025 15 26.235 26.685 27.135 27.585 28.035 16 26.255 26.705 27.155 27.60

12、5 28.055 17 26.265 26.715 27.165 27.615 28.065 18 26.275 26.725 27.175 27.625 28.075 19 26.285 26.735 27.185 27.635 28.085 20 26.305 26.755 27.205 27.655 28.105 21 26.315 26.765 27.215 27.665 28.115 22 26.325 26.775 27.225 27.675 28.125 23 26.355 26.805 27.255 27.705 28.155 24 26.335 26.785 27.235 2

13、7.685 28.135 25 26.345 26.795 27.245 27.695 28.145 26 26.365 26.815 27.265 27.715 28.165 27 26.375 26.825 27.275 27.725 28.175 28 26.385 26.835 27.285 27.735 28.185 29 26.395 26.845 27.295 27.745 28.195 30 26.405 26.855 27.305 27.755 28.205 31 26.415 26.865 27.315 27.765 28.215 32 26.425 26.875 27.3

14、25 27.775 28.225 33 26.435 26.885 27.335 27.785 28.235 34 26.445 26.895 27.345 27.795 28.245 35 26.455 26.905 27.355 27.805 28.255 36 26.465 26.915 27.365 27.815 28.265 37 26.475 26.925 27.375 27.825 28.275 38 26.485 26.935 27.385 27.835 28.285 39 26.495 26.945 27.395 27.845 28.295 40 26.505 26.955

15、27.405 27.855 28.305 Components Components AN252 and AN7140 5 Watt Audio Power Amplifier Similar to NTE1365 Pin Name Description 1 Output 2 GNDGround 3 4 5 6 Input 7 GND Ground 8 9 Vcc Positive Supply Voltage AN240P FM IF Amplifier and Discriminator Similar to LA1365 KA2101 TA7176P HA1125 LM3065N UL

16、N2165N LSC1008P GL3201 SN76664N Description: The AN240P is a versitile device in a 14-Lead DIP type package incorporating IF limiting, detection, electronic attenuation, audio amplifier, and audio driver capabilities. Pin Name Description 1 IFB IF In Bias 2 IFI IF Input 3 GND Ground 4 GND Ground 5 V

17、CC Positive Supply Voltage 6 DC DC Volume Control 7 DE De-Emphasis 8 DO Detector Output 9 QD Quad Detector 10 QD Quad detector 11 NC No Connection 12 AO Audio Output 13 TC Tone Control 14 AI Audio Input AN612 Modulator / Demodulator / Mixer Similar to NTE1249 Pin Name Description 1 Signal input 2 Bi

18、as input 3 Signal input 4 GND Ground 5 Bias output 6 VCC Positive Supply Voltage 7 Output AN103, KIA6410S, KIA7310P, SK3445, TA7310P Oscillator, Mixer and Amplifier VCO for Phase Lock Loop (PLL) Pin Name Description 1 Oscillator Input 2 Oscillator Output 3 Oscillator Output - Buffered 4 Mixer Input

19、5 GND Ground 6 Mixer Output 7 Amplifier Input 8 Vcc Positive Supply Voltage - 9 Volt 9 Amplifier Output PLL02A MC145109 MM48141 AN6040 MN6040 SM5109 TC9100 PLL Frequency Synthesizer Overview This PLL-circuit use a 9 bit BCD binary programmable divide-by-N counter. Down-converting of the frequency to

20、 the divider This PLL Circuit use a Mixer and a X-Tal Oscillator to convert the output frequency f OUT to the f IN to the PLL Circuit. The X-Tal frequency is f XTAL = f OUT - f IN The output frequency can be changed by changing the mixing-xtal or add a new mixing-xtal to the oscillator. Pin Name Des

21、cription 1 VDD Positive Power Supply 2 F in VCO Oscillator Input 3 RI Reference Oscillator Input (10.240MHz) 4 FS HIGH=10kHz - LOW=5kHz 5 PD VCO Voltage Out 6 LD Loop Detected - HIGH=Locked LOW=Unlocked 7 P8 Programmable input (Binary) 8 P7 Programmable input (Binary) 9 P6 Programmable input (Binary

22、) 10 P5 Programmable input (Binary) 11 P6 Programmable input (Binary) 12 P3 Programmable input (Binary) 13 P2 Programmable input (Binary) 14 P1 Programmable input (Binary) 15 P0 Programmable input (Binary) 16 Vss Ground Explanation of pin function terms VCC or VDD This is the +DC supply voltage whic

23、h actually provides the operating power to the chip, and is generally in the range of 4-8 volts. GND or VSS This is the DC power ground connection for the above. NOTE: A chip may be found to have one or more of its functional pins tied to either of the above sources. This may be done to enable a spe

24、cific function by connecting that function to a 1 or 0 , or to prevent an unused function pin from floating unconnected to prevent a possible change in its logic state. RI Reference Oscillator input. This is where the (usually) 10.240 MHz crystal is connected. Crystal pins sometimes called X by the

25、manufacturer. RO Reference Oscillator output. In most chips the crystal is simply connected across RI and RO because the chip has a built-in oscillator circuit which only requires some external capacitors. However some chips such as the PLL02A dont have the built-in oscillator; thus there is no RO p

26、in and an active transistor oscillator is required externally which connects to RI. 1/2R A built-in divided by 2 circuit which provides an output of half the 10.240 MHz Reference Oscillator frequency, or 5.12 MHz. If used, it normally connects to a tripler circuit to provide a 15.360 MHz signal(5.12

27、 MHz x 3) which can be used for loop mixing with the 16 MHz VCO. This mixing provides a low-frequency signal input or downmix to the Programmable Divider. RB Buffered output of the 10.240 MHz Reference Oscillator. Thig signal if present can be used for mixing with the 10.695 MHz receiver first IF or

28、 mixing with the 16 MHz VCO during TX mode to provide the 455 kHz second IF (RX) or the direct on-channel TX frequency. FIN Input to the Programmable Divider which is coming from the output of the VCO. Sometimes called PI (Programmable Input) or DI (Divider Input) by some manufacturers. This is the

29、actual downmix signal or direct VCO signal in the faster chips which will be compared to the Reference Dividers output in the Phase Detector. It is the change in this signals frequency which forces the Phase Detector and VCO to correct until the loop locks. DO Phase Detector output. Sometimes called

30、 PO or PDOUT (Phase Output) or EO (Error Output) by some manufacturers. This is the output which results from comparing RI and FIN. If the two inputs dont match exactly, this circuit sends a DC correction output to the Loop Filter/VCO until the loop corrects itself and locks up. LD Lock Detector. So

31、metimes called LM (Lock Monitor) by some manufacturers.This is a second output of the Phase Detector which is used to kill the transmitter (and sometimes the receiver) if the loop is not locked and operating correctly. Some chips have more than one Lock Detector pin and thus youll sometimes seeLD1 a

32、nd LD2 on the specs. When two Lock Detectorg are used, their normal outputs are usually opposite logicstates; i.e., one LD ig normally 1 and the other is normally 0.This is a convenient design feature which allows the manufacturer some flexibility because he can have a choice ofinhibiting circuits;

33、some work with LOW outputs,some work with HIGH outputs. Some rigg use both LD pins in their circuits. MC Misprogram Code Detector. The same idea as the Lock Detector, this is found in the newer ROM chips. If you try to force an illegal program code on the chip, this pin is activated and will kill th

34、e transmitter, receiver, or in some cases, call up Ch.9 or Ch.19 instead. T/R Transmit/Receive switch. This is used to provide the 455 kHz offset for the receivers second IF stage in dual-conversion AM or FM rigs. Pressing the mike button changes this pins logic state to its opposite state from the

35、RX Mode.This shifts the ROM controlling the Programmable Divider, and in some chips also shifts the output of the Reference Divider from standard 5 kHz steps to 2.5 kHz steps. The T/R shift is the reason youll see two different sets of N-Codes and VCO frequencies in a rig s service manual. NOTE: Som

36、e manufacturers chip spec sheets show a bar (-) above some pin functions, such as LM, T/R, etc. This bar is a digital logic symbol which indicates what state (1 or 0) that pin is in when activated. For example, theT/R with the bar notation means that the pin is normally HIGH (1) in the Receive Mode

37、and normally LOW (0) in the Transmit Mode. /LM means the Lock Monitor is active LOW. , i.e., it is normally HIGH but goes LOW if the loop is unlocked. FS Frequency Select. This is a feature of some chips which allows them to synthesize frequencies in either 10 kHz CB steps, or 5 kHz steps. Remember,

38、 some older chips such as the PLLO2A were intended for other uses besides CB, such as VHF marine radios, aircraft radios, etc., where 5 kHz channel spacing is common. In addition, this feature often makes it easier to synthesize SSB frequencies as well as AM/FM although the feature hasnt been used m

39、uch for this. Depending upon whether the chip has an internal pull-up or pull-down resistor here, it is generally connected to produce 10 kHz CB spacings in the older chips. The newer chips having a T/R shift must use the 5 kHz spacing when the T/R pin is also used. IMPORTANT: You cant use this func

40、tion to get 5 kHz channel spacings, because the Programmable divider must also change to match the spacing. AI and AO Active Loop Filter Amplifier input and output. This circuit if present is used to smooth out the digital waveform coming from the Phase Detector, before its applied to the VCO (See t

41、ext.) This filter is found in the newer CB-only chips. The older chips (Eg, PLL02A) require external passive filters using capacitors and resistors. In many rigs youll find that these pins are connected either directly or through a resistor so that they are placed in series betw een the Phase Detect

42、or output pin and the VCO input. FIL Active filter. W ere using this designation in certain very old chips when the exact spec sheets are not available but its known from studying the chips wiring in the rig that the pins are in fact part of a loop filter. T and Q This is a wave-shaping circuit foun

43、d in a few NEC chips (uPD2810, uPD2814, uPD2816, and uPD2824). It adds design flexibility but is often not even connected. This circuit consistsofan input amplifier and a flip-flop, and its purposeis to change asine-wave input (T) to a square-wave output (Q) which is more compatible with digital ele

44、ctronic circuits. P0 . P10 Program Select pins from Channel Selector switch. (Sometimes called D for Data rather than P for Program.) These pins control the actual channel selection. They may control selection through straight binary coding, BCD, or ROM. The sub-numbers indicate the weight or signif

45、icance of each pin. For example if there were 8 programming pins, P1 to P8, P1 would be in the least significant bit and P8 would bethe most significant bit.The higher the sub-number, the greater the weight of that pin. NC No Connection. An unused pin May actually be disconnected inside the chip, or

46、 simply not used for that particular rig s PLL circuit. Modification methods A TYPICAL PLL SYNTHESIZER A TYPICAL PLL SYNTHESIZER Refer to the figure, which is the PLL circuit of perhaps the most common AM PLL rig ever made. Its been sold under dozens of brand names, and uses the ever-popular PLL02A

47、IC. The SSB and export multimode versions of this circuit are very similar; there are only minor differences relating to the SSB offsets and FMing the VCO. A PLL design may be categorized very generally by the number of crystals it uses, and by whether its VCO is running on the low or high side of 2

48、7 MHz. This particular example is actually the second generation of the PLL02A AM circuit; the original PLL circuit used a total of 3 crystals. The key to synthesizing all of the required frequencies lies in the Programmable Divider. Thats the only PLL section that you can control from the outside w

49、orld by means of the Channel Selector. Which is where it all starts. Suppose you choose Ch., 26.965 MHz. When setting Ch.1 the Programmable Divider (PD) receives a very specific set of instructions at all its programming pins, which are directly connected to the Channel Selector. This specific set which we have called its N-Code, applies only to Ch.l. Its just