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Alinco DJ-X3, Руководство по обслуживанию, Страница: 3 / 35

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3

CIRCUIT DESCRIPTION

1) Receiver

1. RX Method:  Triple Super Heterodyne Method

1st IF.

:

248.45MHz

2nd IF.

:

38.85MHz

3rd IF.

:

450KHz

2. Front End

0.1 ~ 29.995MHz

The signal input from antenna is switched at band switch D19, passing through

the low pass filter, it is amplified at RF amplifier Q15. Then the signal is added

to the 1st mixer IC3 through the band switch D17.

30 ~ 136.995MHz

The signal input from antenna is switched at band switch D23, passing through

the band pass filter, it is amplified at RF amplifier Q21. Then the signal is added

to the 1st mixer IC3 through the band switch D22.

137 ~ 222.995MHz

The signal input from antenna is switched at band switch D27, passing through

the band pass filter, it is amplified at RF amplifier Q23. Then the signal is added

to the 1st mixer IC3 through the band switch D26.

223 ~ 367.995MHz

The signal input from antenna is switched at band switch D29, passing through

the band pass filter, it is amplified at RF amplifier Q27. Then the signal is added

to the 1st mixer IC3 through the band switch D28.

368 ~ 469.995MHz

The signal input from antenna is switched at band switch D32, passing through

the band pass filter, it is amplified at RF amplifier Q32. Then the signal is added

to the 1st mixer IC3 through the band switch D31.

470 ~ 129.995 MHz

The signal input from antenna is switched at band switch D37 and D45,

passing through the band pass filter, it is amplified at RF amplifier Q38. Then

the signal is added to the 1st mixer IC3 through the band switch D36.

3. Mixer

The 1st Mixer

The input signal and the 1st local signal is added or subtracted at mixer IC3,

and SAW filter FL1 selects the signal of 248.45 MHz, then eliminates the

adjacent signal.

Содержание DJ-X3

Страница 1: ...931V XA0666 12 8 TA4101FTE12L XA0667 13 9 S 80828ALNP EAR T2 XA0834 13 10 BR24C64F E2 XA0669 14 11 S 81230SG QB X XA0833 14 12 uPC2757T E3 XA0743 15 13 TC7SET08FU XA0586 15 14 LA3335M XA0786 16 15 NJM2107 XA0850 17 16 Transistor Diode and LED Outline Drawings 17 17 LCD Connection 18 EXPLODEDVIEW 1 Front View 19 2 Bottom View 20 PARTS LIST MAIN Unit 21 26 SW Unit 26 Mechanical Parts 26 Packing 26 A...

Страница 2: ... 39mA Temperature range 10 60 C 14 140 F Frequency stability 5ppm 10 60 C 14 140F Dimension 56 W 102 H 23 D mm Weight Approx 145g 2 RECEIVER System Triple conversion superheterodyne First IF 248 45 MHz Second IF 38 85 MHz Third IF 450 kHz Selectivity AM FM 6dB 12kHz or over 60dB 30kHz or less WFM 6dB 150kHz or over Sensitivity FM WFM 12dB SINAD AM 10dB S N Typ AM 0 5 1 62MHz 17dBu 10dB S N 1 625MH...

Страница 3: ...the signal is added to the 1st mixer IC3 through the band switch D26 223 367 995MHz The signal input from antenna is switched at band switch D29 passing through the band pass filter it is amplified at RF amplifier Q27 Then the signal is added to the 1st mixer IC3 through the band switch D28 368 469 995MHz The signal input from antenna is switched at band switch D32 passing through the band pass fi...

Страница 4: ... at the ceramic filter FL2 The 2nd IF signal input to pin 7 of IC6 is demodulated at the limiter amplifier and quadrature detection circuit inside IC Then the signal is output from pin 12 of IC6 as an AF signall AM The output signal from pin 3 of IC6 is input to pin 5 of IC6 after the adjacent signal is eliminated at the ceramic filter FL2 The 2nd IF signal input to pin 5 of IC6 is output from pin...

Страница 5: ...scillator D15 D16 and L4 determine the frequency and the signal is oscillated at the transistor Q9 The oscillated signal is supplied to pin 2 of PLL IC1 passing through the buffer amplifier Q11 and Q10 The 2nd Local VCO for the 2nd local consists of the Colpitts oscillator D20 D21 and L15 determine the frequency and the signal is oscillated at the transistor Q19 The oscillated signal is supplied t...

Страница 6: ...requency gained by dividing the reference frequency of 12 8 MHz inside IC1 When the phase difference is found as a result of phase comparison the pulse signal is output from the charge pump output of pin 13 of IC1 then the signal is converted into the DC voltage at the inside circuit for active filter and added to the cathode side of VCO vari cap D20 and D21 to make the phases equal In result the ...

Страница 7: ...7 2 M38224M6M E XA0862 T XA0836 CPU Terminal Connection TOP VIEW ...

Страница 8: ...8 XIN XIN I Clock input 29 XOUT XOUT O Clock output 30 VSS VSS GND 31 P27 SW2 I Key input 32 P26 SW3 I Key input 33 P25 SW4 I Key input 34 P24 SW301 I Key input 35 P23 SW302 I Key input 36 P22 CLNSW O Clone SW 37 P21 STB2 O DAC strobe 38 P20 DATA I O Data Unlock 39 SEG22 SEG22 40 SEG21 SEG21 No Terminal Signal I O Description 41 SEG20 SEG20 42 SEG19 SEG19 43 SEG18 SEG18 44 P12 DBC O Doubler SW 45 ...

Страница 9: ...2 0dBm pin 2 and 19 input 80 550MHz Vin 8 0dBm pin 2 and 19 input Consumption current 2 7 4 1mA Vcc 1 8V while 1 channel is used 4 3 6 6mA Vcc 1 8V while both channels are used 0 10uA Vcc 1 8V in power save mode 3 5 5 3mA Vcc 5V while 1 channel is used 5 6 8 6mA Vcc 5V while both channels are used Operationg voltage 1 8 5 5V ...

Страница 10: ...pply Operational Amplifer 4 CXA1622M P XA0787 IN2 SW 2 1 NC NF2 4 3 GND P GND2 6 5 OUT2 RIPPLE 8 7 15 16 13 14 11 12 9 10 IN1 REG VOL NF1 GND P GND1 OUT1 Vcc Pin Assignment Block Diagram 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 REG VOL PRE POWER1 PRE POWER2 ...

Страница 11: ...11 5 MB88347LPFV G BND EF XA0599 D A converter for digital tuning ...

Страница 12: ...9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 AM DET RSSI RECT COMP AMP AGC Vref Vcc AM AMP FM AMP FM DET MIXER OSC RF INPUT GND COMP OUTPUT COMP INPUT NOISE AMP OUTPUT NOISE AMP INPUT AM AGC INPUT AGC AMP OUTPUT RF AGC OUTPUT RSSI OUTPUT AM SW AM DET OUT OSC B OSC E MIX OUTPUT Vcc AM IF INPUT DECOUPLING FM IF INPUT DECOUPLING DECOUPLING LIM OUTPUT QUAD INPUT FM DET OUTPUT Pin Assignment BLOCK Di...

Страница 13: ... IN 4 BASE 5 BASE 6 BASE 7 GND 8 COLLECTOR Pin Assignment Block Diagram 2 3 R1 RB1 RB2 RB3 RB4 R2 R3 Q1 Q2 Q3 Q4 Q5 R4 Q6 3 RE1 RE2 8 1 4 6 7 RL1 RL2 9 S 80828ALNP EAR T2 XA0834 1 2 3 4 1 OUT 2 VDD 3 NC 4 VSS Top view Pin Assignment Block Diagram VDD VCC OUT VREF ...

Страница 14: ...bit EEPROM ARRAY ADDRESS DECODER SLAVE WORD ADDRESS REGISTER DATA REGISTER CONTROL CIRCUIT VOLTAGE DETECTOR HIGH VOLTAGE GENERATOR 13bit ACK STOP START Block Diagram Pin Assignment Vcc WP SCL SDA A0 A1 A2 GND BR24C64 F 11 S 81230SG QB X XA0833 Pin Assignment Block Diagram VIN VOUT RL ...

Страница 15: ...ction Block Diagram C1X Top View 4 5 6 3 2 1 Bottom View 1 RF input 2 GND 3 Lo input 4 PS Power Save 5 Vcc 6 IF output RF input IF output Lo input Vcc GND POWER SAVE 13 TC7SET08FU XA0586 G 2 1 2 3 5 4 IN B IN A GND Vcc OUT Y Pin Assignment Block Diagram ...

Страница 16: ... Input 2 PLL loop filter 3 Power supply 4 VCO 5 NC 6 GND 7 Stereo indicator fillter 8 Pilot sync detection 9 Decoder output low 10 Decoder output high 10 9 8 7 6 1 2 3 4 5 DECODER STEREO SWITCH FF 90 FF1 2 PHASE COMPARATOR V C O FF 0 SYNCHNOUS DETECTOR LAMP TRIGGER VCOSTOP ...

Страница 17: ...X XD0315 DAN235E TL XD0320 MA2S357 TX XD0337 ISS362 TE85L XD0338 SML 310MTT86 XL0036 ISS390 TE61 XD0342 MA2S30400L XD0312 2SC4738BL TE85R XT0181 2SC5066FT Y TE85L XT0180 2SD2216R TX XT0135 2SB1132T XT0061 MA2Z720 XD0367 2SJ144Y TE85R XE0019 UMC5N TR XU0152 XP1111 TX XU0171 UN911H TX XU0092 DTC143TE TL XU0196 2SK881Y TE85R XE0036 5 R B A XP01501 XU0172 2SK1580 XE0029 2L ...

Страница 18: ...G 7 L M N K 8 P O V W 9 R S U T 10 9c 9b 9a Y 11 9e 9g 9f 9d 12 8c 8b 8a X 13 8e 8g 8f 8d 14 7c 7b 7a Z 15 7e 7g 7f 7d 16 6c 6b 6a 6h 17 6e 6g 6f 6d 18 5c 5b 5a Q 19 5e 5g 5f 5d 20 4c 4b 4a 4h 21 4e 4g 4f 4d 22 3c 3b 3a B2 23 3e 3g 3f 3d 24 2c 2b 2a B1 25 2e 2g 2f 2d 26 1c 1b 1a A 27 1e 1g 1f 1d ...

Страница 19: ...19 EXPLODED VIEW 1 Front View TL0027 UP0426 FG0330 DG0040 TL0026 EL0053 ST0069 KZ0134 UR0023 ...

Страница 20: ...20 2 Bottom View A A NK0077 SP0013 AN0012 AN0027 UE0338 FG0337 FG0335 FG0334 AX0008 AX0005 FG0331 ES0021 FM0201 FP0182 UP0426 AF0025 TS0166 SD0093 FG0346 SD0092 FG0338 EA0096 FG0347 ...

Страница 21: ...6CK020C50PT C51 CU3503 Chip C GRM36CK020C50PT C52 CU3535 Chip C GRM36B102K50PT C53 CU3111 Chip C C1608JB1C104KT N Ref No Parts No Descriptin Parts Name Ver C54 CU3503 Chip C GRM36CK020C50PT C55 CS0397 Chip Tantal TMCP1C105MTR C56 CU3515 Chip C GRM36CH220J50PT C57 CS0403 Chip Tantal TMCP1D224MTR C58 CU3523 Chip C GRM36CH101J50PT C59 CU3527 Chip C GRM36CH221J25PT C60 CU3527 Chip C GRM36CH221J25PT C6...

Страница 22: ... GRM36CH330J50PT C166 CU3515 Chip C GRM36CH220J50PT C167 CU3111 Chip C C1608JB1C104KT N C168 CS0396 Chip Tantal TMCP1D104MTR Ref No Parts No Descriptin Parts Name Ver C169 CU3111 Chip C C1608JB1C104KT N C170 CU3111 Chip C C1608JB1C104KT N C171 CU3517 Chip C GRM36CH330J50PT C172 CU3517 Chip C GRM36CH330J50PT C173 CU3111 Chip C C1608JB1C104KT N C174 CS0398 Chip Tantal TMCP0J225MTR C175 CS0398 Chip T...

Страница 23: ...L1608 FH8N2J L2 QC0573 Coil LL1608 FHR10J Ref No Parts No Descriptin Parts Name Ver L4 QC0586 Coil LQW1608A15NJ00 L5 QC0507 Coil LK16081R0K T L6 QC0507 Coil LK16081R0K T L7 QC0510 Coil LK1608330M T L8 QC0631 Coil LL1608 FSR22J L9 QC0631 Coil LL1608 FSR22J L10 QC0631 Coil LL1608 FSR22J L11 QC0506 Coil LK1608R56K T L12 QC0506 Coil LK1608R56K T L13 QC0489 Coil LQH4N221J04 L15 QC0589 Coil LQW1608A27NJ...

Страница 24: ...42 Chip R ERJ2GEJ222X R18 RK3522 Chip R ERJ2GEJ470X R19 RK3550 Chip R ERJ2GEJ103X R20 RK3526 Chip R ERJ2GEJ101X R21 RK3562 Chip R ERJ2GEJ104X Ref No Parts No Descriptin Parts Name Ver Ref No Parts No Descriptin Parts Name Ver R22 RK3522 Chip R ERJ2GEJ470X R24 RK3530 Chip R ERJ2GEJ221X R25 RK3558 Chip R ERJ2GEJ473X R26 RK3562 Chip R ERJ2GEJ104X R27 RK3530 Chip R ERJ2GEJ221X R28 RK3534 Chip R ERJ2GE...

Страница 25: ...4X R142 RK3550 Chip R ERJ2GEJ103X R143 RK3550 Chip R ERJ2GEJ103X R144 RK3550 Chip R ERJ2GEJ103X Ref No Parts No Descriptin Parts Name Ver R145 RK3550 Chip R ERJ2GEJ103X R146 RK3574 Chip R ERJ2GEJ105X R147 RK3554 Chip R ERJ2GEJ223X R148 RK3562 Chip R ERJ2GEJ104X R149 RK3552 Chip R ERJ2GEJ153X R150 RK3566 Chip R ERJ2GEJ224X R151 RK3570 Chip R ERJ2GEJ474X R152 RK3538 Chip R ERJ2GEJ102X R153 RA0009 Ch...

Страница 26: ...C RUBBER YX0032 LCDTAPE AN0027 ANTENNA NUT XH720 KZ0137 REAR CASE FG0330 KEY RUBBER TS0166 RF SHIERD SD0093 TERMINAL R SD0092 TERMINAL L NK0078 VOL NOB X3 DP0139 LCD PANEL KZ0136 FRONT CASE AX0005 OPH P 1 7 5 5 FE NI3 2 FG0347 ANTENNA cushion EA0096 ANTENNA EA96 FM0201 ANTENNA EARTH AX0008 OPH P 1 7 4 FEBC3 2 FG0346 Cushion A FP0182 SP cushion 2 SP0013 LECTRA 7800 UE0338 SMA 19 16 3TGG AF0025 0PH ...

Страница 27: ...uelch level 5 Setting SCAN key 4n1 BP4 Squelch level 1 Setting SCAN key 4nF BP4 Squelch level 5 Setting SCAN key 5n1 BP5 Squelch level 1 Setting SCAN key 5nF BP5 Squelch level 5 Setting SCAN key 6n1 BP6 Squelch level 1 Setting SCAN key 6nF BP6 Squelch level 5 Setting SCAN key 3S1 BP3 S meter level 1 Setting SCAN key 3SF BP3 S meter level 5 Setting SCAN key Wn1 WFM Squelch level 1 Setting SCAN key ...

Страница 28: ... the 14 3MHz of 2dBu standard modulation and press the SCAN key Check if can hear the BEEP sound when press the SCAN key SQL Adjustment BP2 SQL level 1 Adjustment Display 2n1 Input the 109 15MHz of 10dBu standard modulation and press the SCAN key Check if can hear the BEEP sound when press the SCAN key SQL level 5 Adjustment Display 2nF Input the 109 15MHz of 4dBu standard modulation and press the...

Страница 29: ...AN key Check if can hear the BEEP sound SQL Adjustment WFM SQL level 1 Adjustment Display Wn1 Input the 90 5MHz of 6dBu which modulation is 22 5KHz and press the SCAN key Check if can hear the BEEP sound SQL level 5 Adjustment Display WnF Input the 90 5MHz of 18dBu which modulation is 22 5KHz and press the SCAN key Check if can hear the BEEP sound S Meter Adjustment WFM S Meter level 1 Adjustment ...

Страница 30: ......

Страница 31: ...30 PC BOARD VIEW 1 DJ X3T X3E Side A W1 30R02 030 02 W2 30BH1 045 H1 to BAR ANTENNA SPEAKER to PTT BOARD to GREEN WIRE BLACK WIRE RED WIRE BLACK WIRE RED WIRE RED WIRE NATURAL WIRE ...

Страница 32: ...31 2 DJ X3T X3E Side B 30RH1 020 H1 W301 W302 30G02 020 02 30BH1 020 H1 W303 BLACK WIRE RED WIRE GREEN WIRE ...

Страница 33: ... Ear 0V SP 0V Ear 3V SP 1 55V Ear 0V SP 1 2V Ear 0V 0V 0V SC ON 1 5V 1 5V 2 7V 2 7V 3V 2 2V 3V 0 94V 1 2V 1 2V 1 25V 2 2V 0 96V 1 87V 2 84V 0 7V 1 87V 1 17V DBL ON 1 86V 1 03V 0 7V 0 7V 0 3V 2 06V 0 97V 2 94V 2 75V 2 96V 1 2V 0 7V 0 99V 2 27V 2 98V 2 95V 2 04V 1 38V 0 7V 0 89V L 0 5V U 2 2V 1 18V 1 2V 1 53V 2 74V 1 19V 1 2V 1 53V 2 75V 2 96V 1 4V 0 7V N 3V W 0 8V N 0V W 1 16V 3V ABAR SBAR 0V 3V 3V...

Страница 34: ...33 BLOCK DIAGRAM ...

Страница 35: ...anual ALINCO INC Head Office Shin Dai Building 9th Floor 2 6 1 Chome Dojimahama Kita ku Osaka 530 0004 Japan Phone 81 6 4797 2136 Fax 81 6 4797 2157 E mail export alinco co jp Copyright 2000 Alinco lnc Osaka Japan Printed in Japan PM0064 ...

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