djs45CQ_SM.pdf

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1、 DJ S45CQ/ T / E Service Manual CONTENTS S SPECIFICATIONS General Transmitter. Receiver. CIRCUIT DESCRIPTION 1) Reception 2) Transmission. 3) CPU SEMICONDUCTOR DATA 1) NJM2070M (XA0210) 2) TA31136FN (XA0404). 3) BA4510FV (XA0537). 4) M64082AGP (XA0543). 5) uPC2771TB (XA0953). 6) uPC2757TB (XA0953).

2、7) BU4818FVE (XA1095). 8) BR24L16FVM (XA1096). 9) XC6209F352MR (XA1097) 10) XC6367A453MR (XA1098). 11) LM2904PWR (XA1103). 12) Transistor, Diode and LED Outline Drawings 13) LCD Connection (EL0060). EXPLODED VIEW 1) Front View. 2) Rear View. 3) Bottom View. 2 2 2 3-4 4 5-7 8 8 8 9 9 9 10 10 11 11 11

3、 12 13 14 15 16 PARTS LIST CPU Unit. MAIN Unit. Mechanical Unit. Packing Unit. ADJUSTMENT 1) How to enter the adjustment mode. 2) How to select the adjustment item. 3) How to change the Squelch. 4) How to transmit the Tone Burst. 5) Standard Measuring Condition. Adjustment Points Adjustment Specific

4、ation. PC BOARD VIEW. SCHEMATIC DIAGRAM. BLOCK DIAGRAM. 17-18 19-20 21 21 22 22 22 22 22 23 24-25 26-29 31-32 33 ALINCO, INC. 2 SPECIFICATIONS General Type DJ-S45CQS/CQL DJ-S45T DJ-S45E Transmitter Range (MHz) PMR：446.00625-446.09375 LPD：433.06000-434.78000 420.000-449.995 430.000-439.995 Receiving

5、Range (MHz) PMR：446.00625-446.09375 LPD：433.06000-434.78000 420.000-473.995 430.000-439.995 Modulation F3E Operating Temperature -1060 (+14F+140F) Frequency Stability -7+3ppm Antenna Impedance 50 ohm Supply Voltage 3.0-6.0VDC (External) Ground Method Negative ground Transmit PMR：Approx. 0.45A LPD：Ap

6、prox. 0.20A Hi-Power：Approx. 1.00A Lo-Power：Approx. 0.45A Receive Approx. 60mA Current (DC6.0V) Battery Save Approx. 13mA Transmitter Type DJ-S45CQS/CQL DJ-S45T DJ-S45E Output Power PMR：Approx. 500mW LPD：Approx. 10mW Hi-Power：Approx. 2.0W Lo-Power：Approx. 0.5W Modulation System Variable Reactance Ma

7、x. Deviation +/-2.5kHz +/-5kHz Spurious Emission 250nW or less -60dB or less Frequency Stability Approx. 2k ohm Receiver Type DJ-S45CQS/CQL DJ-S45T DJ-S45E Receiver circuit Double Conversion Super-heterodyne Impedance Frequency 1st：21.7MHz / 2nd：450kHz Sensitivity -15dBu or less (12dB SINAD) Audio O

8、utput Power 180mW or over (MAX) / 150mW or over (10% Distortion 8 ohm) Spurious Response 2nW or less 60dB or over ! NOTE: All specifications are subject to change without notice or obligation. 3 CIRCUIT DESCRIPTION 1) Reception 1. RX Method FM: Double Super Heterodyne Method Double Super Heterodyne

9、Method 1st IF: FM: 21.7 MHz 2nd IF: FM: 450 kHz 2. Front End The signal input from antenna passes through the low pass filter, then it is amplified at RF amplifier Q110 and Q111. The amplified signal is led to band pass filter, then input to the mixer IC103. 3. Mixer The input signal to the mixer IC

10、103 and the 1st local signal are added or subtracted at mixer IC103, and the crystal filter FL101 selects the signal of 21.7 MHz, then it is amplified at the 1st IF amplifier Q112 after the adjacent signal is eliminated. 4. IF The signal amplified at the 1st IF amplifier Q112 is supplied to pin 16 o

11、f IC104 for demodulation. Also the signal of 21.25MHz from the reference buffer output of IC102, then it is led to pin 1 of IC104. 2 input signals are mixed in the mixer circuit inside IC104 and converted into the 2nd IF signal of 450kHz.The converted 2nd IF signal is output from pin 3 of IC104. The

12、 output signal from pin 3 of IC104 is led to pin 5 of IC104 after eliminating the adjacent channel signal at the ceramic filter FL102. The input 2nd IF signal to pin 5 of IC104 is demodulated at the limiter amplifier and quadrature detector circuits inside of IC104, then output from pin 9 of IC104 a

13、s an AF signal. 5. Squelch The AF signal got from pin 9 of IC104 is fed to pin 8 of IC7. The input signal is output from pin 14 of IC104 passing through the noise filter amplifier and rectifier circuits inside of IC104. The rectified signal is added to the A/D port of the microcomputer IC2. Judging

14、the signal, the microcomputer controls ON/OFF of the audio output. 6. Audio The volume of output audio signal is adjusted at the volume VR1 via the AF amplifier Q2. The signal is input to pin 2 of audio power amplifier IC1 and output from pin 6 to drive a speaker, etc. 7. VCO The VCO in UHF band con

15、sists of the Colpitts oscillator. D103, D105, L114 and L115 determine the oscillating frequency, and the signal is oscillated at the transistor Q106. The oscillated signal is supplied to pin 6 of PLL-IC102 passing through the buffer amplifier Q101 and Q107. 4 8. PLL PLL-IC102 is used to control the

16、oscillating frequency of the VCO. IC102 is controlled by the serial control signal sent from the microprocessor IC2. The 21.25MHz reference frequency of IC102 oscillates the crystal oscillator X101 at the inside circuit. IC102 compares the frequency gained by dividing the signal added to pin 14 of I

17、C2 by the control signal from IC2 with the frequency gained by dividing the reference frequency of 21.25MHz inside IC102. When the phase difference is found as a result of phase comparison, the pulse signal is output from the charge pump output of pin 16 of IC102, then the signal is converted into t

18、he DC voltage at the passive filter and added to the cathode side of the VCO vari-cap D103 and D105 to make the phases equal. In result the stabilized oscillation can be done at the desired frequency. 2) Transmission 1. Microphone Amplifier The microphone amplifier IC4 has 2 operational amplifiers.

19、The voice is converted into the electric signal through the microphone, then supplied to IC4. The input signal is amplified and pre-emphasized to be output. The signal output from microphone amplifier is adjusted the maximum frequency deviation at VR102. The adjusted signal is added to the cathode o

20、f the VCO vari-cap D104 for deviation to change the capacity of the oscillation circuit resulting the FM deviation. 2. Power Amplifier The oscillated signal of the VCO is supplied to the power amplifier Q104, passing through buffer amplifier Q107, pre-driver amplifier IC101, driver amplifier Q105. T

21、he power-amplified signal is supplied to the antenna through the duplexer after the harmonics are attenuated enough. 5 3) CPU M38227M8A (XA1125/XA1141) Terminal Connection (TOP VIEW) 6 No. Terminal Signal I/O Description 1 P67(AN7) BP1 A/DBand plan 1 2 P66(AN6) BP2 A/DBand plan 2 3 P65(AN5) TIN A/DC

22、TCSS Tone input 4 P64(AN4) SQL A/DNoise level input for squelch 5 P63(AN3) SMT A/DS-meter input 6 P62(AN2) BP3 A/DBand plan 3 7 P61(AN1) BCHK A/DBattery detection input 8 P60(AN0) EXT O Signal detection output 9 P57(ADT) MUTE O Microphone mute 10 P56(Tout) BEEP O Beep tone output 11 P55(CNTR1) PT3 I

23、 PTT input 12 P54(CNTR0) TBST O Tone burst output 13 P53(RTP1) AFPC O Audio amp power supply ON/OFF control 14 P52(RTP0) AFS O AF mute 15 P51(INT3) FUNC I FUNC key input 16 P50(INT2) DOWN I DOWN key input 17 P47(SRDY) V/M I V/M key input 18 P46(Sclk) UP I UP key input 19 P45(TxD) TXD O Clone data tr

24、ansmission output 20 P44(RxD) RXD I Clone data reception input 21 P43(INT1) TSWC O TSQ power supply ON/OFF control 22 P42(INT0) BU I Back up signal detection input 23 P41() MONI I MONI key input 24 P40 NC 25 RESET RST I Reset input 26 P71(Xcin) SCL I Serial clock output for EEPROM 27 P70(Xcout) SDA

25、I/O Serial data I/O for EEPROM 28 XIN XIN I Clock input 29 XOUT Xout O Clock output 30 VSS Vss CPU GND 31 P27 R3C O RX power switch output 32 P26 C3C O C3V power supply ON/OFF control 33 P25 P3C O PLL power supply ON/OFF control 34 P24 T3C O TX power supply ON/OFF control 35 P23 CLK O Serial clock o

26、utput 36 P22 DATA I/O Serial data output 37 P21 STB1 O Strobe for PLL 38 P20 LMPC O LCD backlight ON/OFF control 39 P17(SEG31) SD O RX indicator ON/OFF control 40 P16(SEG30) TLC O TX indicator ON/OFF control 41 P15(SEG29) LOW O Low power switch control 42 P14(SEG28) TONE5 O Tuning voltage output 43

27、P13(SEG27) TONE4 O Tuning voltage output 44 P12(SEG26) TONE3 O Tuning voltage output 45 P11(SEG25) TONE2 O Tuning voltage output 46 P10(SEG24) TONE1 O Tuning voltage output 47 P07(SEG23) SEG23 O LCD segment signal 48 P06(SEG22) SEG22 O LCD segment signal 49 P05(SEG21) SEG21 O LCD segment signal 50 P

28、04(SEG20) SEG20 O LCD segment signal 7 No. Terminal Signal I/O Description 51 P03(SEG19) SEG19 O LCD segment signal 52 P02(SEG18) SEG18 O LCD segment signal 53 P01(SEG17) SEG17 O LCD segment signal 54 P00(SEG16) SEG16 O LCD segment signal 55 P37(SEG15) SEG15 O LCD segment signal 56 P36(SEG14) SEG14

29、O LCD segment signal 57 P35(SEG13) SEG13 O LCD segment signal 58 P34(SEG12) SEG12 O LCD segment signal 59 SEG11 SEG11 O LCD segment signal 60 SEG10 SEG10 O LCD segment signal 61 SEG9 SEG9 O LCD segment signal 62 SEG8 SEG8 O LCD segment signal 63 SEG7 SEG7 O LCD segment signal 64 SEG6 SEG6 O LCD segm

30、ent signal 65 SEG5 SEG5 O LCD segment signal 66 SEG4 SEG4 O LCD segment signal 67 SEG3 SEG3 O LCD segment signal 68 SEG2 SEG2 O LCD segment signal 69 SEG1 SEG1 O LCD segment signal 70 SEG0 SEG0 O LCD segment signal 71 Vcc Vcc CPU power supply 72 VREF VREF AD converter power supply 73 Avss Avss AD co

31、nverter GND 74 COM3 COM3 O LCD COM3 output 75 COM2 COM2 O LCD COM2 output 76 COM1 COM1 O LCD COM1 output 77 COM0 COM0 O LCD COM0 output 78 LV3 LV3 I LCD power supply 79 LV2 LV2 I LCD power supply 80 LV1 LV1 I LCD power supply 8 SEMICONDUCTOR DATA 1) NJM2070M (XA0210) Audio Power Amplifier 2）TA31136F

32、N (XA0404) FM IF IC 1. OSC IN 9. AF OUT 2. OSC OUT 10. QUAD 3. MIX OUT 11. IF OUT 4. VCC 12. RSSI 5. IF IN 13. N-DET 6. DEC 14. N-REC 7. FIL OUT 15. GND 8. FIL IN 16. MIX IN 3) BA4510FV (XA0537) Dual Operational Amplifires J R C 2 0 7 0 * * * * * 8 7 6 5 4 3 2 1 1 . N C 2 . + I NPUT 3 . - I NPUT 4 .

33、 G N D 5 . G N D 6 . O U T PUT 7 . V + 8 . N C 4 5 1 0 * * * * 5 8 7 6 4 3 2 1 4 . G N D 1 . O u t put 1 2 . I n v erting Input 1 3 . N o n -inverting Input 1 5 . N o n -inverting Input 2 6 . I n v erting Input 2 7 . O u t put 2 8 . V + 9 4) M64082AGP (XA0543) PLL Freguency Synthesizer 1. XBO 9. PD2

34、 2. SI 10. Lock 3. CPS 11. Fin2 4. RST 12. VC1 5. VCC 13. CONT 6. Fin1 14. GND 7. VSS 15. Xout 8. PD1 16. Xin 5) uPC2771TB (XA0953) MMIC Medium Output Power Amplifier 6) uPC2757TB (XA0953) MMIC 1st Frequency Down-converter C 2 H 1 2 3 4 5 6 1 . INPUT 2 . GND 3 . GND 4 . OUTPUT 5 . GND 6 . VCC 1 2 3

35、4 5 6 2 . GND C 1 X 1 . RF INPUT 3 . LO INPUT 4 . PS 5 . 6 . IF OUTPUT VCC 10 7）BU4818FVE (XA1095) RESET IC 1. VOUT 2. SUB 3. N.C. 4. VDD 5. GND 8）BR24L16FVM (XA1096) EEPROM 1. A0 2. A1 3. A2 4. GND 5. SDA 6. SCL 7. WP 8. VCC 11 9) XC6209F352MR (XA1097) 3.5V Voltage Regulator 1. VIN 2. VSS 3. CE 4.

36、NC 5. VOUT 10) XC6367A453MR (XA1098) DC/DC Converter IC 1. VOUT(FB) 2. VDD 3. CE 4. GND 5. EXT 11) LM2904PWR (XA1103) Dual Operational Amplifires 1. 1OUT 2. 1IN- 3. 1IN+ 4. GND 5. 2IN+ 6. 2IN- 7. 2OUT 8. VCC 12 12) Transistor, Diode and LED Outline Drawings Top View 13 13) LCD Connection (EL0060) SE

37、GMENT COMMON SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 COM0 COM1 COM2 COM4 14 EXPLODED VIEW 1) Front View 1 15 2) Front View 2 16 3) Rear View 17 PARTS LIST CPU Unit Ref No.Parts No.Parts NameVer.

38、Ref No.Parts No.Parts NameVer. FG0412LCD RUBBER CNC58CU3535GRM36B102K50PT DG0045LCD LIGHTC60CU3559GRM155B30J105KE18D TL0032REFLECTING SHEETC61CU3523GRM36CH101J50PT ST0088LCD HOLDERC62CU3523GRM36CH101J50PT C1CS0422TMCMB1A476MTRC63CU3535GRM36B102K50PT C2CU3554GRM36B104K10PTC64CU3535GRM36B102K50PT C3CU

39、3554GRM36B104K10PTC65CU3547GRM36B103K16PT C4CU3559GRM155B30J105KE18DCN1UE0487AXK5S20330P C5CS039716V 1UFD2XD0382MA27728 C6CU3539GRM36B222K50PTD3XD0402VDZT2R 5.1B C7CU3559GRM155B30J105KE18DD4XD0412CRS09(TE85L,Q) C8CU3551GRM36B223K16PTD5XD0412CRS09(TE85L,Q) C9CU3551GRM36B223K16PTD6XL0105SML-A10MT C11C

40、U3554GRM36B104K10PTD7XL0105SML-A10MT C12CS0422TMCMB1A476MTRD8XL0097SML-521MUWT86 C13CU3551GRM36B223K16PTIC1XA0210IC NJM2070M C15CU3552GRM36B333K10PTIC2XA1125/XA1141M38227M8A C16CU3554GRM36B104K10PTIC3XA1103LM2904PWR C17CU3547GRM36B103K16PTIC4XA0537BA4510FV-E2 C18CU3535GRM36B102K50PTIC5XA1095BU4818FV

41、E-TR C19CU3535GRM36B102K50PTIC6XA1096BR24L16FVM-WTR C20CU3535GRM36B102K50PTIC7XA1097XC6209F352MR C21CU3554GRM36B104K10PTIC8XA1098XC6367A453MR C22CU3554GRM36B104K10PTJK1UJ0019HSJ1493-01-010 C23CU3537GRM36B152K50PTJK2UJ0059HSJ1102-01-510 C24CU3523GRM36CH101J50PTL1QC0711CDRH5D28-220NC C25CU3552GRM36B33

42、3K10PTL2QC0831NLCV32T-2R2M-PF C26CU3554GRM36B104K10PTLCD1EL0060LCD DJS45 C27CU3539GRM36B222K50PTQ1XT01962SA2030T2L C28CU3554GRM36B104K10PTQ10XU0207EMA8T2R C29CU3559GRM155B30J105KE18DQ11XU0206DTA123JMT2L C30CS04284V15UFQ12XT01962SA2030T2L C31CU3539GRM36B222K50PTQ13XE0050XP161A1355PR C32CU3554GRM36B10

43、4K10PTQ14XU0205DTC144TMT2L C33CU3551GRM36B223K16PTQ15XU0206DTA123JMT2L C34CU3551GRM36B223K16PTQ16XU0208EMD3T2R C35CU3539GRM36B222K50PTQ17XT02102SC6026MFV-GR C36CU3559GRM155B30J105KE18DQ18XU0205DTC144TMT2L C37CU3523GRM36CH101J50PTQ2XT02102SC6026MFV-GR C38CU3547GRM36B103K16PTQ3XE00592SK3541T2L C39CU35

44、59GRM155B30J105KE18DQ4XU0205DTC144TMT2L C40CU3531GRM36B471K50PTQ5XU0206DTA123JMT2L C41CU3535GRM36B102K50PTQ6XE00592SK3541T2L C42CU3517GRM36CH330J50PTQ7XU0205DTC144TMT2L C43CU3517GRM36CH330J50PTQ8XU0206DTA123JMT2L C44CU3547GRM36B103K16PTQ9XU0205DTC144TMT2L C45CU3521GRM36CH680J50PTR1RK35141005 1/16W 1

45、0 OHM J C46CU3535GRM36B102K50PTR2RK35261005 1/16W 100 OHM J C47CU3559GRM155B30J105KE18DR3RK35261005 1/16W 100 OHM J C48CS039716V 1UFR4RK35501005 1/16W 10K OHM J C49CU3547GRM36B103K16PTR5RK35421005 1/16W 2.2K OHMJ C50CU3554GRM36B104K10PTR6RK35421005 1/16W 2.2K OHMJ C51CS0422TMCMB1A476MTRR7RK35581005

46、1/16W 47K OHM J C52CS0422TMCMB1A476MTRR8RK35501005 1/16W 10K OHM J C54CU3535GRM36B102K50PTR9RK35421005 1/16W 2.2K OHMJ C55CS0422TMCMB1A476MTRR10RK35661005 1/16W 220K OHMJ C56CU3535GRM36B102K50PTR11RK35581005 1/16W 47K OHM J C57CS04294V22UFR12RK35581005 1/16W 47K OHM J 18 Ref No.Parts No.Parts NameVe

47、r.Ref No.Parts No.Parts NameVer. R13RK35621005 1/16W 100K OHMJR81RK35501005 1/16W 10K OHM J R14RK35541005 1/16W 22K OHM JR82RK35501005 1/16W 10K OHM J R15RK35741005 1/16W 1.0M OHMJR83RK35521005 1/16W 15K OHM J R16RK35421005 1/16W 2.2K OHMJR84RK35281005 1/16W 150 OHM J R17RK35621005 1/16W 100K OHMJR8

48、5RK35621005 1/16W 100K OHMJ R18RK30501608 1/10W 10K OHM JT/ER87RK35281005 1/16W 150 OHM J R19RK30501608 1/10W 10K OHM JT/ER88RK35281005 1/16W 150 OHM J R20RK30501608 1/10W 10K OHM JCQL/CQSR89RK35011005 1/16W 0 OHM JT/E R21RK30501608 1/10W 10K OHM JT/ER90RK35441005 1/16W 3.3K OHMJ R22RK35501005 1/16W 10K OHM JR91RK35621005 1/16W 100K OHMJ R23RK35461005 1/16W 4.7K OHMJR92RK35611005 1/16W 82K OHM J R24RK35501005 1/16W 10K OHM JR93RK35581005 1/1