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Alinco DR-140E, Руководство по обслуживанию, Страница: 4 / 43

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CIRCUIT  DESCRIPTION

1)  Receiver System

1. Antenna Switching Circuit

 

(Main unit)

The signal from the anlenna  is  input to  RF amplifier circuit passing through  the 5

 

stages low-pass filter (L15  ~  L18, C76 ~ C80,  C148), the  anlenna switching circuit

 

(D9,  D11,  L14,  C63), T type high-pass filter (L11,  LI 2,  C57, C64,  C58, C59) and

 

band switch circuit (D20 T,  E version  only).  The antenna  switching circuit uses XI4

 

diode switch circuit.

2.  RF Amplifier Circuit

 

(Main unit)

RF signal is amplified approximately 2GdB by RF amplifier,  RF  amplifier circuit

 

uses dual gate  FET to get good inter-modulation characteristics.  The RF amplifier

 

consists of vollage tuned band-pass filter (L1,  L2,  L4,  L5,  D2,  D3,  D5,  D6) and  RF

 

AMP (Q6).  The signal  is amplified after eliminating unwanted  signals so that

 

image interference characteristics are improved.

3.  1st Mixer Circuit

 

(Main unit)

The amplified  signal  is converted  into the first  IF signal of 30.85MHz by mixer

 

circuit  (Q5).  Mixer circuit uses dual gate  FET to improve  multifrequency character­

istics such as inter-modulation.  The output signal  from  mixer circuit is led fo  1st IF

 

circuit.

4. Air Band Circuit

(Main unit I T,  E version)

The output  signal  from  band  switch circuit is led to  low-pass filter circuit  (L7,  L8,

 

C55,  C56) and  input to RF  amplifier circuit (Q11). There the signal is amplified

 

approximately 20dB and  input to the  mixer circuit.

5.1st IF Circuit

 

(Main  unit)

The output  1 st  IF signal from  mixer circuit is led to crystal  filter XF1.

Unwanted  frequency band of  IF signal  is eliminated by a crystal filler.  The result­

ing signal  is led to the 2nd  IF amplifier, and the signal  is output to 2nd  IF circuit.

6. 2nd IF Circuit and  Detector Circuit

 

(Main  unit)

The  1st  IF  signal is  led to 2nd  mixer circuit of  IC1,  then  it is converted into the 2nd

 

IF signal  (455kHz)  by 2nd  local  signal.  IC1  has the 2nd mixer, 2nd local oscillator

 

circuit, quadrature detector circuit and  AM detector circuit. The 2nd local  oscillator

 

oscillates 2nd  local  signal  (30.395MHz).  The 2nd  IF output signal from  mixer (pin

 

3 of IC1)  circuit is led to ceramic filler {FL1).  Unwanted frequency band of 2nd  IF

 

signal  is eliminated by a ceramic filter.  The resulting  FM  signal  is led  to the limiter

 

amplifier (pin  7 of IC1) circuit and quadrature deteclor circuit (pin  11  of  IC 1  and

 

ceramic discriminator Xt),  and  the 2nd  IF signal  is converted to AF signal.  The  FM

 

AF signal is output from  pin  12 of  1C1  to AF circuit.  The AM signal  is  input to AM

 

detector circuit (pin  5 of IC1),  and the  AM  AF signal  is output from pin  13 of IC1.

Содержание DR-140E

Страница 1: ...Outline D raw ings 17 16 L C D 18 EXPLODED VIEW 1 Bottom V ie w 19 2 LCD A ssem bly 20 3 Top and Front V ie w 21 PARTS LIST Main U nit 21 22 Packing 23 CPU Unit 23 SP Unit 23 VCO U n it 23 Mechanical P a rts 23 EJ 20U 24 ADJUSTM ENT 1 Required Test Equipm ent 25 2 PLL Adjustm ent 26 3 TX Adjustm ent 26 4 RX Adjustm ent 27 5 Adjustm ent Points 28 PC BO AD VIEW 1 Main Unit Side A 29 2 Main Unit Side...

Страница 2: ...h DTMF 5 10 12 5 15 20 30 50kHz steps user adjustable 50Q unbalanced 13 8 V DC 10 RX Squelched less than 800mA TX High approx 10 5A Low approx 3 5A 141mm W x 41mm H x 154mm D without projections approx 0 86kg 50 Channels plus CALL channel each stores RX TX offset CTCSS encode optional CTCSS decode and alphanumeric display information Alphanumeric English and Cyrillic alphabets numbers 0 9 figures ...

Страница 3: ...i More than 6kHz at 6dB Less than 15kHz at 60dB More than 2 5 Watts 10 distortion 8 2 Specifications are subject to change without notice or obligation Performance specifications apply only to transmit bands Names of certain products mentioned in this catalog are used for identification purposes only and may be trademarks or registered trademarks of their respective company ...

Страница 4: ...signal from band switch circuit is led to low pass filter circuit L7 L8 C55 C56 and input to RF amplifier circuit Q11 There the signal is amplified approximately 20dB and input to the mixer circuit 5 1st IF Circuit Main unit The output 1st IF signal from mixer circuit is led to crystal filter XF1 Unwanted frequency band of IF signal is eliminated by a crystal filler The result ing signal is led to...

Страница 5: ...m external microphone is amplified by the microphone amplifier Q303 and passed through the microphone mute circuit Q304 the signal is input to the microphone gain potentiometer VR3 in the main unit The signal from microphone gain potentiometer VR3 is amplified by limiter amplifier and low pass IC4 The resulting signal is passed through the modula tion adjustment potentiometer VR4 then input to VCO...

Страница 6: ...e detected voltage is passed through the power setting potentiometer VR1 and the signal is amplified by Q17 Q16 and Q14 The transmitting power is controlled by the voltage of V1 IC2 and collector voltage of Q13 When the temperature of the unit goes high the powerdown circuit R104 TH2 prevents the device from being damaged The PLL circuit uses PLL IC IC201 equipped with built in dual modulus presca...

Страница 7: ...tion input Pulse None Normal Equipped 15 P51 STB1 0 PLL strobe permitted Inhibited 16 INT2 RE2 I Rotary encoder down input OFF ON 17 P47 CLK 0 Clock signal output Pulse 18 P46 DATA 0 Data signal output Pulse 19 TXD CTX 0 Data output for the cloning mode Pulse 20 RXD CRX I Data input for the cloning mode Pulse 21 INT1 RE1 I Rotary encoder up input OFF ON o 22 INTO BU I Backup signal input Normal Ba...

Страница 8: ...t Pulse 50 S20 S20 o Segment 20 output Pulse 51 S19 S19 o Segment 19 output Pulse 52 S18 S18 o Segment 18 output Pulse 53 S17 S17 o Segment 17 output Pulse 54 S16 S16 0 Segment 16 output Pulse 55 S15 S15 o Segment 15 output Pulse 56 S14 S14 0 Segment 14 output Pulse 57 S13 S13 0 Segment 13 output Pulse 58 S12 S12 0 Segment 12 output Pulse 59 S11 S11 0 Segment 11 output Pulse 60 S10 S10 0 Segment 1...

Страница 9: ...ltage input 73 AVSS GND I GND 74 COM3 COM3 O LCD common 3 output Pulse 75 COM2 COM2 0 LCD common 2 output Pulse 76 COM1 COM1 0 LCD common 1 output Pulse 77 COMO COMO 0 LCD common 0 output Pulse 78 VL3 VL3 I LCD power supply input 79 VL2 VL2 I LCD power supply input 80 VL1 VL1 I LCD power supply input 9 ...

Страница 10: ...T 0 Tone Detection Output Detect Low 15 VSS Ground 16 DREF I Tone Detection Level Adjust Input 17 TLINP I RX Tone Signal Reference Input 18 TLINN I RX Tone Signal Input 19 TLINO o AMP3 Output 20 RXTONE o RX Tone Signal Output 21 TXTONE o TX Tone Signal Output 22 AGNDIN I Analog Ground Input 23 AGND 0 Analog Ground Output 24 BIAS I Bias Input RXIN d 1 24 Z U BIAS RXINO n z 2 23 AGND TXINO n z 3 22 ...

Страница 11: ...AN78L05M 3 LA4425A XA0410 5W Audio Power Amplifiers 1 2 3 4 5 4 M5218FP XA0068 Dual Low Noise Operational Amplifiers Output 1 1 Inverting Input 1 2 Non Inverting Input 1 3 Power Supply Minus 4 8 Power Supply Plus 7 Output 2 6 Inverting Input 2 5 Non Inverting Input 2 ...

Страница 12: ...Output portl terminal swi n z 6 11 LFI Output port2 terminal SW2 I 7 10 ZZ LFO G round terminal G N D I 8 9 D P N Power supply terminal 3 5 5 V 14mA Reference oscillator input terminal Reference oscillator output terminal Phase detector output terminal when locked Low Phase detector output terminal Low pass filter input terminal Low pass filter output terminal Phase switch input terminal of phase ...

Страница 13: ... t o 110 0 Zg ZI 50Q 7 M68702H XA0444 1 5 0 175MHz 60W RF Power Module TE2 Ratings Symbol Ratings Unit Supply voltage Vcc 17 V Total current Icc 20 A Input power Pin max 600 mW Output power Po max 75 W Operation case temperature Tc op 30 t o 110 C Storage temperature Tstg 40 t o 110 C Zg ZI 50ii 8 M68702L XA0445 1 3 5 160MHz 60W RF Power Module TE1 Ratings Symbol Ratings Unit Supply voltage Vcc 17...

Страница 14: ...tor Test Circuit 10 RH5VL32AA T1 XA0198 C MOS Voltage Detector Equivalent Circuit VDD OUT vss U Ü u OUT VDD VSS RH5VL32AA 11 RH5VL45AA T1 XA0208 C MOS Voltage Detector Equivalent Circuit lv d d OUT V S S m i i t OUT VDD VSS RH5VL45AA 14 ...

Страница 15: ...rm s 10mVin 3kHz DEV Distortion THD1 1 0 2 0 10mVin 3kHz DEV O utput Im pedance Zo 800 n lOm Vin Filter Gain Gf 30 38 dB Fin 30kHz Vo 100m V Scan Control Hi Voltage SH 2 3 V Squelch input 2 5V Scan C ontrol Low Voltage SL 0 3 V Squelch input 0V Squelch H ysteresis Hys 30 mV S m eter O utput Voltage SO 0 05 0 5 V Vin 0m V RS 68kS2 S m eter O utput Voltage S1 0 05 0 5 0 9 V Vin 0 01m V R S 6 8 kfi S...

Страница 16: ...ISL Vcc 5V f 500MHz 39 dB Input return loss RLin Vcc 5V f 500MHz 6 dB Output return loss RLout Vcc 5V f 500MHz 12 dB Gain flatness aGp Vcc 5V f 0 1 0 6GHz 0 8 dB Test Circuit ______ Vcc Top View GND GND Q T Input O Output 1F GND Vcc 14 24LC16B XA0351 16K bits CMOS Serial EEPROM Block Diagram__________________ WP AO n z 1 IO 8 H3 Vcc A1 z z 2 1 1 7 z n W P A2 n z 3 O o 6 Z Z SCL Vss 4 C D 5 Z Z i S...

Страница 17: ...15 Transistor Diode and LED Outline Drawings T o p V i e w ...

Страница 18: ...COM 3 24 7i 7h 7n 7m 5 COM O 25 7f 7e 7d 6 1j 1k ig 1 1 26 6i 6h 6n 6m 7 1a 1b 1c LOW 27 6f 6e 6d 8 2j 2k 2g 2 1 28 5i 5h 5n 5m 9 2a 2b 2c BUSY 29 DEC 5f 5e 5d 10 3j 3k 3g 3 1 30 4i 4h 4n 4m 1 1 3a 3b 3c D 31 1 4f 4e 4d 12 4 4k 4g 4 1 32 3i 3h 3n 3m 13 4a 4b 4c 2 33 1 3f 3e 3d 14 5j 5k 5g 5 1 34 2i 2h 2n 2m 15 5a 5b 5c 3 35 ENC 2f 2e 2d 16 6j 6k 6g 6 1 36 1i 1h in 1m 17 6a 6b 6c 37 FUNC 1f 1e 1d 1...

Страница 19: ...EXPLODED VIEW 19 ...

Страница 20: ...4 KZ0047Z AE0014 AE0014 AE0014 ES0017 EM0152 UA0037Z FG0040 T E XA0412 M67746 TE1 XA0445 M68702L 1 TE2 XA0444 M68702H UX1047 YZ0062 FP0004 AD0010 AD0010 AV0001 FF0028 AV0001 KZ0039A AV0001 NB0063Z AE0014 KZ0045Z KZ0040A AE0014 A t O U 1 4 KS0041CZ ...

Страница 21: ...02K500PT 16M V 10SW TS C1608JB1H102KTA 16M V 1QSW TS C160BJB1H102KTA RCC05SL180J L46AE or r ftcc i 1 1 cac L J U J L U L U L L f U 0 d o t Î Î Î Î Î Ï 0 c 3 w nv t 3 0 S S S c O 0 0 0 c j 0 o 0 0 t c or d a cc 0 uü LHunc RCC05SL120J L46AE RCC05SL120J L46AE RCC05SL180J L46AE C1608JB1H102KTA C1608JB1H102KTA C1608CH1H220JTA C1608CH1H220JTA C1608JB1H102KTA C 1608CH1H01OCTA C1608CH1H010CTA C1608CH1H020...

Страница 22: ...3034 Chip R ERJ3GSYJ471V R20 RK3064 Chip R ERJ3GSYJ154V R21 RK3042 Chip R ERJ3GSYJ222V Ref No Parts No Description Parts Name Ver R22 RK3038 Chip R ERJ3GSYJ102V R23 RK3054 Chip R ERJ3GSYJ223V R24 RK3030 Chip R ERJ3GSYJ221V R25 RK3045 Chip R ERJ3GSYJ392V R28 RK3046 Chip R ERJ3GSYJ472V R27 RK3062 Chip R ERJ3GSYJ104V R28 RK3026 Chip R ERJ3GSYJ101V R29 RK3054 Chip R ERJ3GSYJ223V R30 RK3050 Chip R ERJ3...

Страница 23: ...22 RK3042 Chip R ERJ3GSYJ222V T E R123 RK3042 Chip R ERJ3GSYJ222V T E R124 RK3001 Chip R ERJ3GSY0R00V R125 RK3062 Chip R ERJ3GSYJ104V T E R125 RK3050 Chip R ERJ3GSYJ103V T E R127 RK3050 Chip R ERJ3GSYJ103V R128 RK3038 Chip R ERJ3GSYJ102V R129 RK3058 Chip R ERJ6GEYJ473V R130 RK3026 Chip R ERJ3GSYJ101V R131 RK3038 Chip R ERJ3GSYJ102V R132 RK3067 Chip R ERJ3GSYJ274V Réf No Parts No Description Parts ...

Страница 24: ...3 013400 IC302 XA0446 IC M38223M4 108H IC3D3 XA0351 IC 24LC16BT I SN Ref No Parts No Description Parts Name Ver IC304 XA0238 IC AN78L05M E1 IC305 XA0208 IC RH5VA45AA T1 IC306 XA0198 IC RH5VA32AA T1 JK301 UJ0037 Jack C4T U1 PC JW301 MPAL05GG Wire 30PH1 050 H1 1 2 JW302 MPAL05GG Wire 3QPH1 050 H1 1 2 JW303 MPAL05GG Wire 30PH1 050 H1 1 2 JW304 MACL04GG Wire 30AH1 040 H1 T LP301 EP0003 Lamp 8Q031 3040...

Страница 25: ...3V C221 CU3031 ChipC C1608JB1H471KTA R369 RK3050 Chip R ERJ3GSYJ103V C223 CU3015 Chip C C1608CH1H220JTA R370 RK3102 Chip R ERJ3GSYJ203V C224 CU3035 Chip C C1608J81H102KTA R371 RK3038 Chip R ERJ3GSYJ102V C225 CU3035 Chip C C1608JB1H102KTA R372 RK0014 Chip R ERJ6GEYJ630V C226 CU3059 Chip C C 608JF1E104ZTA R373 RK3042 Chip R ERJ3GSYJ222V C229 CU3Û35 Chip C C1608JB1H102KTA R375 RK3070 Chip R ERJ3GSYJ4...

Страница 26: ... R ERJ3GSYJ101V R217 RK3018 Chip R ERJ3GSYJ220V R218 RK30S0 ChipR ERJ3GSYJ103V R219 RK3038 Chip R ERJ3GSYJ102V R221 RK3001 Chip R ERJ3GSYOROOV R224 RK3034 Chip R ERJ3GSYJ471V R225 RK3054 Chip R ERJ3GSYJ223V R226 RK3026 Chip R ERJ3GSYJ101V R228 RK3041 Chip R ERJ3GSYJ1B2V R229 RK3026 Chip R ERJ3GSYJ101V R231 RK3058 Chip R ERJ3GSYJ473V R232 HK3058 Chip R ERJ3GSYJ473V R233 RK3040 Chip R ERJ3GSYJ152V R...

Страница 27: ...A0239 IC AK2341 QS01 XT0095 Tansistor 2SC4081 T106R R5Q1 RK3040 Chip R ERJ3GSYJ152V R502 RK3022 Chip R ERJ3GSYJ470V R503 RK3067 Chip R ERJ3GSYJ274V R504 RK3038 ChipR ERJ3GSYJ102V R505 RK3051 Chip R ERJ3GSYJ123V R506 RK3049 Chip R ERJ3GSYJ822V R507 RK3067 Chip R ERJ3GSYJ274V R5D8 RK3047 Chip R ERJ3GSYJ562V R509 RK3068 Chip R ERJ3GSYJ334V R510 RK3054 Chip R ERJ3GSYJ223V R5J1 RK3054 Chip R ERJ3GSYJ22...

Страница 28: ... eter Measurable frequency Input level Distortion level e A udioG enerator Output frequency Output impedance 6 Dummy Road Measurable frequency Up to 500MHz Impedance 50Q Power 60W or more 7 Speaker Impedance 8 SSG Output frequency Output level Modulation 9 TransceiverTester a FrequencyC ounter b Power Meter Impedance Measuring range c Audio Voltm eter Measurable frequency Sensitivity 8Q Up to 1GHz...

Страница 29: ...timeter PD VCO L302 7 0V 0 1V 3 TX Adjustment High Power f 145 00MHz T E TE1 f 162 00MHz TE2 High TX Power Meter Current Meter ANT VR5 52W T E 36W TE1 TE2 1 0W 10 5A or below T E 8 5A or below TE1 2 Low Power f 145 00MHz T E TE1 f 162 00MHz TE2 Low TX VR6 5 5W 5 5 0 5W Deviation f 145 00MHz T E TE1 f 162 00MHz TE2 Low TX AG 1kHz 40mV emf Linear Det Oscilloscope Power Meter AG VR4 4 7kHz DEV 4 7kHz...

Страница 30: ...n order Adjust the coils repeatedly f 144 00MHz T E f 137 00MHz TE1 f 150 00MHz TE2 SSG OUT 8 5dBjLi 1kHz 3 5kHz Dev Check SINAD is 12dB or more S Meter f 145 00MHz T E TE1 f 162 00MHz TE2 SSG OUT 18 0dBp Mod OFF LCD S Meter VR1 Set to the point where all segments start flashing SSG OFF Check Does not light SQL level f 145 00MHz T E TE1 f 162 00MHz TE2 SSG OUT 12dB i Mod OFF LCD Busy VR2 Set to th...

Страница 31: ...5 Adjustment Points 28 ...

Страница 32: ...m ïJ ù m m m BPS m W aSS 29 ...

Страница 33: ... B 30 S O W T tT a tu io t 9to w e M a w c m m 1 m t r T 0 S K i M S i fonrm W M S i p J i 6r a V a c IB S i ivi it i v m d fe e i m O j x X l f K t l n O f i p r t o i no atolTTn if tiiik ij i I 1 13 3 IK 4t u iw fltU ...

Страница 34: ...3 CPU Unit Side A 4 CPU Unit Side B S jf V ta jp v 1 Urn V O i nr f j s l 5k 4 A x iz iirjr y S I I K p T Ftui i r it n cjW j f f f W 3 7 n il 5 H up A m TLJT W lr LD l UP l aw 31 ...

Страница 35: ...5 VCO Unit Side A M i i f l c Q J 2 É 1 R 08 lO T g e n a g r í a i H r a S 6 VCO Unit Side B o O J z u jfV i S í í d í v R á k v g ñ M I ir w 5 f v r í y 32 ...

Страница 36: ...C N 5 0 1 7 EJ 20U CTCSS Unit Option CD R 5 1 4 R 5 1 5 R 5 0 4 33 ...

Страница 37: ...0 2 C A L L 9 _2 a_ o o F U N C co N w ccroBron cicssunii iW m s á c o n nec to rront r a n k in gu n it T E I 1E 2U N ITOM V O 0 c o o P7 II i 3 r V SSS sss CÜD Y h s PiH o 1 1 c 4 n O 1 0 S d y oír hdP X2 30 395M H 2 P i a Ï LO í s T l T U IL J 0 Ï a 2 o CZ ï I JL J So m T i í s I g _ _ ft f f 4 l A i v a o v i a i o o i a ...

Страница 38: ...1 M a in U n itT E ...

Страница 39: ...n U n it T E 1 T E 2 FL1 LF H12S QAaao pSC408 R 17 4cgg A008 XF 133 35MHz Scoter SET 026 DA2C4N I JC01S R73 100K Diaorzs jB R 05 Ria7 IK RFOUT CN O MOD 12 2 A 22PI15P I M687Q2L QKA75G 10P 15P M687Q2H QKA9SD 38 ...

Страница 40: ...m CO O ö c c 3 T TE1 TE2 R301 eoím 1 l 0 0 JW301 Pink 0 0 1 1 R341 8 Mini 1 1 0 0 JW 302 PW0 0 0 1 1 R 350 B am 1 0 0 0 JW 303 Pirk 0 I 0 1 1 JW 304 Bu 1 0 0 0 R 349 6 m 0 1 0 0 U X1201 0 0 1 1 03 CO ...

Страница 41: ...4 O XC225 0 001 8 1 4EU Ver C213 C247 TE 100P 5P TE1 150P 6P TE2 120P 4P BV 200P 5P 4 V C O Unit ...

Страница 42: ... F 5 EJ 20U CTCSS Unit Option ...

Страница 43: ...exp o rt alin co co jp U S A 438A m ap olaA venue U n it130 T orran ce C A90501 6201 U S A P h o n e 310 618 8616 F ax 310 618 8758 h ttp w w w alin co co m G erm any E sch b o rn erL an d strasse55 60489F ran kfu rtamM ain G erm any P h o n e 069 786018 F ax 069 789 60766 h ttp w w w alin co d e Dealer Distributor Copyright 2000 Alinco Inc Osaka Japan Printed in Japan ...

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