Alinco DX-70 Service Manual Download Page 56

Page: 56 / 116

MAIN Unit

Ref.

No.

Parts No.

Description

Parts Name

RIO

RK3Q34

Chip R.

ERJ3GSYJ47IV

RK3035

Chip R.

ERJ3GSYJ561V

R12

RK3C42

Ch i p R.

ERJ3GSYJ222V

R13

RK3018

Chip R.

ERJ3GSYJ220V

RK3030

Chip R.

ERJ3GSYJ221V

RI 5

RK3049

Chip R.

ERJ3GSYJ822Y

RK3043

Chip R.

ERJ3GSYJ272Y

R17

RK3038

Ch i p R.

ERJ3GSYJ1Q2V

R18

RK3040

Chip R.

ERJ3GSYJ152V

R19

RK3050

Chip R.

ERJ3GSYJ103V

R20

RK3026

Chip R.

ERJ3GSYJ101V

RK3034

Chip R.

ERJ3GSYJ471V

R22

RK3030

Ch i p R.

ERJ3GSYJ221V

R23

RK3026

Chip R.

ERJ3GSYJ101V

R25

RK3042

Chip R.

ERJ3GSYJ222V

R26

RK3046

Chip R.

ERJ3GSYJ472V

R28

RK3038

Chip R.

ERJ3GSYJ102V

R29

RK3038

Chip R.

ERJ3GSYJ102V

R30

RK3026

Chip R.

ERJ3GSYJ101V

R31

RK3034

Chip R.

ERJ3GSYJ471V

R32

RK3066

Chip R.

ERJ3GSYJ224V

R33

RK3026

Chip R.

ERJ3GSYJ101V

R34

RK3058

Ch i p R.

ERJ3GSYJ473V

R35

RK3050

Chip R.

ERJ3GSYJ103V

R36

FX3030

Chip R.

ERJ3GSYJ221V

R37

RK3G23

Chip R.

ERJ3GSYJ56ÛV

R38

RK1025

Chip R

ERJ8GEYJ331V

R57

RK303I

Chip R.

ERJ3GSYJ271V

R58

RK3018

Chip R.

ERJ3GSYJ220V

R59

RK3024

Chip R.

ERJ3GSYJ680V

RGO

RK4068

Chip R.

ERJ14YJ151H

R61

RK3050

Chip R.

ERJ3GSYJ103V

R62

RK4088

Ch i p R.

ERJ14YJ561H

R63

RK3Û35

Chip R.

ERJ3GSYJ561V

RK.3034

Chip R.

ERJ3GSYJ471V

RK3022

Chip R

ERJ3GSYJ470V

RK3Q54

Chtp R.

ERJ3GSYJ223V

R67

RK3074

Chip R.

ERJ3GSYJ105V

RK3026

Chip R.

ERJ3GSYJ101V

R69

RK3034

Chip R.

ERJ3GSYJ471V

R70

RK3043

Chip R.

ERJ3GSYJ272V

R71

RK3026

Ch i p R.

ERJ3GSYJ101V

R72

RK3044

Chip R.

ERJ3GSYJ332V

R73

RK3Q32

Ch i p R.

ERJ3GSYJ331V

R74

RK3044

Chip R.

ERJ3GSYJ332V

R75

RK3G38

Chip R.

ERJ3GSYJ102V

Réf.

No.

Parts No.

Description

Parts Name

R76

RK3013

ERJ3GSYJ8R2V

R77

RK3020

Ch D R.

ERJ3GSYJ330V

R78

RK3040

ERJ3GSYJ152V

R79

RK3D22

Ch P R.

ERJ3GSYJ47QV

R80

RK3030

Ch p R.

ERJ3GSYJ221V

R81

RK3058

Ch D R.

ERJ3GSYJ473V

R82

RK3052

Ch P R.

ERJ3GSYJ153Y

R83

RK3038

Ch D R.

ERJ3GSYJ102V

R84

RK3032

Ch P R.

ERJ3GSYJ331V

R85

RK3050

Ch P R.

ERJ3GSYJ1Q3V

RK3026

ERJ3GSYJ101V

R87

RK3042

Ch P R.

ERJ3GSYJ222V

RK3050

Ch P R.

ERJ3GSYJ103V

R90

RK3042

Ch P R.

ERJ3GSYJ222V

R89

RK.3062

Ch P R.

ERJ3GSYJ104V

R91

RK3054

Ch P R.

ERJ3GSYJ223V

R92

RK3026

Ch P R.

ERJ3GSYJI01V

R93

RK3Û22

Ch P R.

ERJ3GSYJ470V

R94

RK3034

Ch P R

ERJ3GSYJ471V

R95

RK3078

Ch P R.

ERJ3GSYJ225V

R96

RK3043

Ch P R

ERJ3GSYJ272V

R97

RK3058

ERJ3GSYJ473V

R98

RK3038

Ch P R

ERJ3GSYJ102V

R99

RK3042

Ch P R.

ERJ3GSYJ222V

RI 00

RK3070

Ch P R.

ERJ3GSYJ474V

R101

RK3026

Ch P R.

ERJ3GSYJ101V

RI 02

RK3034

Ch P R.

ERJ3GSYJ471V

Rî 03

RK305Û

Ch P R.

ERJ3GSYJ103V

R104

RK3026

ERJ3GSYJ101V

RI 05

RK3050

Ch P R.

ERJ3GSYJ103V

R106

RK3051

ERJ3GSYJ123V

R107

RK3034

Ch P R.

ERJ3GSYJ471V

R108

RK3046

Ch P R

ERJ3GSYJ472V

RI09

RK3046

ERJ3GSYJ472V

R110

RK3045

Ch P R.

ERJ3GSYJ392V

R111

RK3050

Ch P R.

ERJ3GSYJ103V

R112

RK3030

Ch P R.

ERJ3GSYJ221V

R113

RK3030

ERJ3GSYJ221V

R114

RK3030

Ch P R.

ERJ3GSYJ221V

R115

RK3042

Ch P R.

ERJ3GSYJ222V

R116

RK3046

Ch P R.

ERJ3GSYJ472V

R117

RK3046

Ch P R.

ERJ3GSYJ472V

R118

RK3046

Ch P R

ERJ3GSYJ472V

R119

RK3030

ERJ3GSYJ221V

R120

RK3030

ERJ3GSYJ221V

R121

RK3030

ERJ3GSYJ221V

Summary of Contents for DX-70

Page 1: ...R C U I T D E S C R I P T I O N 2 S E M I C O N D U C T O R D A T A 1 2 E X P L O D E D V I E W 2 1 P A R T S L I S T 2 8 A D J U S T M E N T 4 2 P C B O A R D V I E W 4 9 B L O C K D I A G R A M 5 8...

Page 2: ...7 kg 2 Transmitter Transmit frequency coverage e g U S Version 160 m band 80 m band 40 m band 30 in band 20 m band 17 m band 15 m band 12 m band 10 m band 6 m band 1 8000 to 1 9999MHz 3 5000 to 3 999...

Page 3: ...equency 71 75 M H z 1st 455 kHz 2nd Sensitivity SSB CW S N 10 dB 0 5 to 1 8 MHz 0 dB 1 pV 1 8 to 30 M H z 12 dB 0 25 j V 50 to 54 MHz 16 dB 0 15 pV A M 1 kHz 30 Mod S N 10 dB 0 5 to 1 8 M H z 20 d B 1...

Page 4: ...ecause the space noise in 50MHz band is less than it in HF band its exclusive receiving preamplifier is equipped to get high sensitivity The receiving signal of 50MHz or HF is selected in RL514 then a...

Page 5: ...unit has the characteristics of the band width of 15kHz or more 3dB and the value of guaranteed attenuation of 70dB or more Here the image ratio is determined 70dB or more approx 80dB The first IF amp...

Page 6: ...n in the FM mode Q23 Q24 and Q25 are active also AGC is operated In SSB and CW modes the following local oscillating frequency is supplied from PLL unit to IC3 balanced mixer then the signal is demodu...

Page 7: ...ned with the inpul of LPF amplifier IC12 A The high tone noise that is generated in IF amplifier is decreased by LPF amplifier The output of IC12 A is attenuated in R309 and R310 to get the same level...

Page 8: ...earlier stage A part of the second mixer output whose band width is limited is amplified in Q20 Q19 018 and Q16 The signal is detected in D33 and D34 and the AGC voltage is applied to 019 Q18 and Q16...

Page 9: ...odulation and output to the balanced modulation of IC2 The output to IC2 is muted by Q54 in CW FM mode b Balanced Mixer C2 is the balanced mixer and the carrier is suppressed in SSB mode To get more r...

Page 10: ...MHz while using 50MHz band to decrease the spurious signal Then the signal is supplied to PA unit 2 PA U nit a Power Amplifier The signal input to PA unit is amplified up to approximately 100mW The id...

Page 11: ...he temperature does not go up higher than it while transmitting The temperature at which the fan turns at a middle speed or more is higher than it while transmitting At high temperature fan s turning...

Page 12: ...e operation in AUTO mode is stopped D107 and R360 are used to get up speed rising when the keying is started D92 and R280 determine the discharge time constant While receiving the time constant is pro...

Page 13: ...y is divided by 10 in IC19 of the main unit to obtain the sidetone of 650Hz 850Hz The comparison frequency of the second local oscillator is changed according to the CW offset setting To relate with t...

Page 14: ...D77 and it makes the charge voltage such as electrolytic capacitor discharge momentarily not to remain T8V After delayed the transmitting rise time in IC10 B the signal is inverted in 1C18 D then T8V...

Page 15: ...ter LPF in HF band From now on the operation in HF band is shown and in 50MHz band the operation is the same L534 is 10 turn bifilar of toroidal core twisted pairs of AWG Therefore the both sides are...

Page 16: ...t D1019 and C1002 are used to hold the output voltage of 5V by keeping the input voltage of 5V regulated power supply as long as possible The regulated power supply ol about 10 5V consists of Q1003 Q1...

Page 17: ...pply of 5V Details 1 There are 3 kinds of power supply as follows The voltage of 13V passed through the switch The voltage of 8V made in the MAIN unit The voltage of 5V made in the PLL unit Power supp...

Page 18: ...N the analogue switch of IC715 The modulation signal is passed through R798 IC715 R796 and C801 and it is FM modulated in VC02 The Transmission of CWU CWL CN701 Pin24 CWU or CN701 Pin25 CWL is supplie...

Page 19: ...equency of 455kHz is output from IC712 Pin3 and sent to the MAIN unit from J701 after amplified in Q723 The Output level is approximately 5dB Frequency Relations depending on the Mode USB TX RX LSB TX...

Page 20: ...When the frequency is 50MHz in VC03 the oscillated frequency within 76 75 80 75MHz by D961 TC961 and 0961 are synthesized with the frequency of 45MHz by the DBM Double Balanced Mixer in L729 L730 and...

Page 21: ...rough Q932 and divided by 20 in IC704 and supplied through Q933 Then the signal is divided by 10 in IC705 and the frequency of 775 875kHz 25Hz step is fed to the mixer IC701 Therefore the operation fr...

Page 22: ...nk and IC901 Pin4 is OV and FM is supplied 8V and tone unit power supply is ON The tone level is controlled with the DIP switch SW901 Pin1 and Pin2 to adjust the level 12 FM TX deviation Default is 2...

Page 23: ...K2 SERIAL2 CK 0 MODE BPF etc transmits clock 24 P35 S02 DAT2 SERIAL2 DATA o MODE BPF etc data transmission 2b P36 STR8 ENA SERIAL SELECT 0 MODE BPF etc data enatxe select on Enatfe i 6 P3 CS ENB SERIA...

Page 24: ...6 Vcc 5V 77 P10 TMOW MONI 0 Open the squelch forcedly monitor Squelch open torcsdiy 78 P11 TMOFL UT o The conmand io put out the light forcedly and flashing lo LCD driver Put out the light forcedly Du...

Page 25: ...40 mV rm s Freq P1 P2 P3 P4 P5 P6 Freq P1 P2 P3 P4 P5 P6 57 0 1 186 2 1 1 1 1 71 9 1 192 8 1 1 1 1 1 74 4 1 i 203 5 1 77 0 1 210 7 1 1 79 7 1 218 1 1 1 82 5 1 1 225 7 1 1 1 85 4 1 1 1 233 6 1 80 5 1 2...

Page 26: ...Input CZ 5 12 ZD Sooettft input Decoupling CZ 6 1 1 ZD Rlter Output Limrler Output CZ 7 10 ZD FHIer Input Quad Input CZ 8 9 Demodulate Output 3 M5218FP XA0068 Dual Low Noise Operational Amplifiers Out...

Page 27: ...D6345GS XA0114 8bit Serial in Parallel Out Driver No Pin Marne Description 1 GND GND terminal 2 EN Enable terminal 3 LAT Latch terminal 4 SO Serial data output terminal 5 12 8 Da a output ermina 13 SI...

Page 28: ...er Demultiplexer L o g ic D ia g r a m Vdd 16 o INHIB1T 6 o le v e l A 10 o CONVE RTER B 9 H Vss 8 o Vee 7 o Xo 12 o Xt 14 o X2 15 cv X 3 11 O Y0 1 o Y i 5 o V 2 V3 4 o 13 X 3 Y y T Y 2 T COMMON Y T Y...

Page 29: ...ERIAL Os OUTPUT STROBE d 1 16 d Vd d SERIAL IN d 2 15 d Output Enable CLOCK d 3 U 3 1 4 d 05 01 d 4 C 4 O CD 13 d 06 02 d 5 12 d 07 Q3 d 6 T 1 11 d Q8 04 d 7 10d Q s Vss d 8 9 d Os 12 MC12019D XA0292...

Page 30: ...tions Q C o D R 0 3 c C o D O _ r r v 3 3 OA Clock Aa r _ 1 16 Z Z Vcc Reset a tz 2 15 Z Z Clock Ab 0 8 QAa z z 3 2 o n I m 1 4 Z D Reset b Clock Ba r 4 13 Z D QAb OBa z z 5 o Ca 12 Z D Clock Bb 6 1 O...

Page 31: ...4 CD 10 ZD NC Q4 c z 6 n 9 ZD 03 Vss rz z7 8 ZD NC Clock Clear Output State Don t care H All Outpul L _ r L No Charge L _ Advance to o e s ta g e 16 MC14071BF XA0296 Quad 2 Input OR Gate T r u th T a...

Page 32: ...8 fin 1 Comparator divider input termina1 Clock Senal clock input terminal 10 Data 1 Senal data input lerminai 1 1 L 1 Load enable inpcrt torminaI 1 Do 0 Aclive LPF connection terminal tr fv Dnve mode...

Page 33: ...ND terminal ID 0 Phase detector output terminal Lock HUniock negative pulse fin Prescaler input terminal 9 Clock Senal clock input terminal 10 Data Senal data input terminal LE 1 Load enable input ter...

Page 34: ...s nz 7 8 Z Z 1 In 1C 20 AN612 XA0300 Balanced Modulator Circuit Parameter Symbol Condition Ratings Unit Max supply voltage Vcc 14 4 V Supply current lee 15 mA Power dissipation PD 220 mW Total current...

Page 35: ...20k 3V 80 90 dB Noise output voltage Vnoi Vc 0 ATT 1 4dB RklOkii R0 20kil BW 20Hz 20kH _ 3V 30 60 jiVrms Noise output voltage Vno2 Vc 40dB Rl 10kft RQ 20kQ BW 20Hz 20kH 3V 5 jiVrms 22 LC75821W XA0303...

Page 36: ...ut d 4 cn 5 Z D GND Vcc 4V Parameter Symbol Condition M in Typ Max Unit Current lo No signal 2 6 4 5 7 2 mA Saturated output voltage Vo id 98MHz 80dB V 30 50 72 mV rm s Local oscillator voltage Vosc i...

Page 37: ...0305 Dual D Type Flip Flop T r u th T a b le 25 L78LR05B XA0338 Voltage Regulator B lo c k D ia g r a m Parameter Symbol Ratings U nit Input voltage Vin 7 5 20 V Output currenl lout 1 150 mA Output vo...

Page 38: ...3 H o 12d In 1D Out B 4 o C 11 r Out D In 1B d 5 o C D T 10 d i Out C In2B d 6 9 i In2C Vss d 7 8 d j In 1C 28 24LC16B XA0351 16K bits CMOS Serial EEPROM B lo c k D ia g r a m Memory co n ird c irc u...

Page 39: ...gnal 12 16 mA Conversion gain Gc Signal 70mV r m s 1 75MHz Carrier 100mV r m s 28 25MHz Output 30MHz 2 0 2 dB Signal leakage Ls 40 2 0 dB Carrier leakage Lc 32 20 dB Intermodulated distortion IM D Sig...

Page 40: ...r j o 30 Transistor Diode and LED Outline Drawings To p View...

Page 41: ...C O M 2 C O M 1...

Page 42: ......

Page 43: ...KZ0030 W h e n rem oving the b a ck co ver p res s the location T to re le a s e the bu m p along the to p ed ge then press th e location 2 to re le a s e th e bum p along the sid e e d g e n e ar th...

Page 44: ...4 PLL Unit and Fan 23...

Page 45: ...5 Top View 1 2 4...

Page 46: ...J...

Page 47: ...OOOOOOOOO oooocoooooooo OOOOOOOOOOOOO oooocoooooooo ooooooooooooo ooooooooooooo ooooooooooooo ooooooooooooo ooooooooooooo O O O O O OOO Q 000o 000000 0000000 ooooooooooooo ooooooooooooo ooooooooooooo...

Page 48: ...7 LPF Unit AJ0017 AJ0017 2 6 AJ0029...

Page 49: ...8 PA Unit and LPF Unit...

Page 50: ...C hip c Ct6Q8JB1HI52KT A C49 CU3038 Chip c C1608JB H182K7 A Ref No Parts No Description Parts Name C50 C U 3041 Chip C C1608JB1H332KT A C 5 1 CU8042 Chi p C C2Q12JB1C104KT A C52 C U 3051 Chip C C1608J...

Page 51: ...E473ZT A C185 CU3056 Chip c C1608JF1E473ZT A C186 CU3056 Chip c C1608JF1E473ZT A Ref No Parts No Description Parts Name Cl 8 7 CU3056 Chip C C1608JF1E473ZT A C 88 CU3056 Chip C C1608JF1E473ZT A C189 C...

Page 52: ...antalum TM C M B 1C 106M TR C277 CU305 C hip C C1608JB1E223KT A C278 CU8042 Chip C C20I2JB1C104KT A C279 CU3047 Chip C C1608JB H103KT A IV CO Ref No Parts No Description Parts Name C280 C SQ 230 C hip...

Page 53: ...D0246 D i ode DAN235UT106 D 7 XD0289 Diode S3275CTE12L D 8 XD0246 D i ode DAN235U 106 D 9 XD0246 Diode DAN235UT106 DIO XD 0231 Diode DAP202U T106 Dll XD 0231 Di ode DAP202U T106 Ref No Parts No Descri...

Page 54: ...H C 3357D R IC8 XA0224 1 C NJM 2904M T1 IC9 XA0224 1 C NJM 2904M T1 IC10 XA0299 1 C BU 4001BF ICH XA0082 1 C M C7808CT IC 2 XA0068 1 C M5218FP T0M IC 3 XA0301 1 C M 5222FP Ref No Parts No Description...

Page 55: ...ansistor 2SC4081T106R Ref No Parts No Description Parts Name Q 2 9 XU0148 Transistor DTC144EU 106 030 XT0094 Transistor 2SA1576T106R Q 3 1 XTQ095 Transistor 2SC4081T106R 032 XU0061 Transistor UN5211 T...

Page 56: ...GSYJ331V R74 RK3044 Chip R ERJ3GSYJ332V R75 RK3G 38 Chip R ERJ3GSYJ102V C O R f No Parts No Description Parts Name R76 RK3013 C h P R ERJ3GSYJ8R2V R 77 RK3020 C h D R ERJ3GSYJ330V R78 RK3040 C h P R E...

Page 57: ...RK3062 Chip R ERJ3GSYJ104V R 144 RK3026 C hip R ERJ3GSYJ101V R I9Q RK3062 C hj p R ERJ3GSYJ104V R145 RK3058 Chip R ERJ3GSYJ473V R1 9 1 RK3059 Chip R ERJ3GSYJ563V R146 RK3074 Chip R ERJ3GSYJ105Y R192...

Page 58: ...R262 RK3038 C hip R ERJ3GSYJ102V R263 RK3034 C hip R ERJ3GSYJ471V R264 RK3034 Chip R ERJ3GSYJ471V Ref No Parts No Description Parts Name R265 RK3058 Chip R ERJ3GSYJ473V R266 RK3034 Chip R ERJ3GSYJ471V...

Page 59: ...p R ERJ3GSYJ680V R354 RK3033 C hip R ERJ3GSYJ391V R355 R K3064 C hip R ERJ3GSYJ154V R356 RK3046 C hip R ERJ3GSYJ472V Ref No Parts No Description Parts Name R357 RK303 Chip R ERJ3GSYJ221V R358 RK3045 C...

Page 60: ...C 3035 Chip C C1608JB1HI02KT A C 57 CU3035 Chip C Cl608JB1HI02KT A C 58 CU3059 Chip C CI608JF1El04ZT A C 73 CU3025 Chip C C1608CH1H151JT A C 74 CU3034 Chip C C1608JBJH821KT A C 75 CU3034 Chip C C1608...

Page 61: ...J 3 L43 Q C0123 Chip L NL322522T R12J 3 L44 Q C0123 Chip L NL322522T R12J 3 R45 RK3028 C hip R ERJ3GSYJ15IV R46 RK4068 Chip R ERJ14YJ151H R53 RK3028 Chip R ERJ3GSYJ151V Ref No Parts No Description Par...

Page 62: ...761 CU3047 Chip C C1608JB1HI03KT A C762 CU3035 Chip C C1608JB1HI02KT A C763 CU3035 Chip C C16 8JB1H1Q2KT A Re No Parts No Description Parts Name C764 CU3035 Chip C C1608JB1HI02KT A C765 CU3014 Chip C...

Page 63: ...c C1608CH1H010CT A C858 C U 3011 C h p c C1608CH1H100CT A CB59 CU3035 C h P c C1608JBIH102KT A C860 CU3035 Ch P c C1608JB1H102KT A C B 61 CU3002 Ch P c C1608CH1H010CT A Re No Parts No Description Par...

Page 64: ...2T 5R6J L719 Q C0048 Chip L NL322522T 1Q0J CO cn Ref No Parts No Description Parts Name L720 QA01Q 8 Coi 1 QAQ 138 L721 QA0108 C oi 1 QA0108 L722 QA0108 Coi 1 QA0108 L724 Q C0124 Chip L NL322522T R15J...

Page 65: ...4V R787 RK3062 Chip R ERJ3GSYJ104V R788 RK3046 Chip R ERJ3GSYJ472V R794 RK3026 Chip R ERJ3GSYJ101V Ref No Parts No Description Parts Name 730 XU0148 Transistor DTC144EUT1Q6 0731 XT0059 Transistor 2SC3...

Page 66: ...01V R840 RK3062 C hip R ERJ3GSYJ1 04V R841 RK3042 Chip R ERJ3GSYJ222V R842 RK3033 C hip R ERJ3GSYJ391V Ref No Parts No Description Parts Name R843 RK3046 Chip R ERJ3GSYJ472V R 844 RK3030 Chip R ERJ3GS...

Page 67: ...2019DR2 L931 QA0I09 Coi i QA0109 L932 Q C0043 Chip L M322522T 2R2J Q 931 XE0006 FET 2SK210GR TE85L Ref No Parts No Description Parts Name Q 932 XT0Q59 Transistor 2SC3082KT146Q 0933 XT0095 Transistor 2...

Page 68: ...KT A C 981 CU3018 Chip C C1608CH1H390JT A C9B2 CU3005 Chip C Cl608CH H040CT A C983 CU3017 Chip C C1608CH1H330JT A CJ n Ref No Parts No Description Parts Name C984 C U 3011 C hip C C1608CH1H100CT A C98...

Page 69: ...ription Parts Name C502 CU3047 Chip C C1608JB1H103KT A C503 CC5095 Ceramic C RCC12SL471J L46AU C504 CC5093 Ceramic C RCC12SL391J L46AU C505 CM 0008 Nica C D M 19 222J 500V C506 CC5083 Ceramic C RCC08S...

Page 70: ...01 CN504 RD 0108 Resistor J P W 0 1 R 01 CN505 UE0043 Connector PI22A02 Ref No Parts No Description Parts Name C N 507 UE0235 Connector 00 6208 000 112 001 C N 5Q 8 UE0070 Connector PI22A04M C N 509 U...

Page 71: ...2V R530 RK0008 Chip R ERJ6GEYJ330V R 531 RK3023 C hi p R ERJ3GSYJ560V R532 RK0008 Chip R ERJ6GEYJ330V R533 R K 3Q 0 1 C hip R ERJ3GSY0R00V Ref No Parts No Description Parts Name R534 RD 01Q 8 Resistor...

Page 72: ...667 CU8042 C hip C C2012JB1CI04KT A C668 CU3047 Chip C C1608JB1H103KT A C669 CU3047 Chip C Cl608JB1H103KT A C670 CU3047 C hip C Cl608JB1H103KT A C67 CU3023 Chip C C1608CHIH10IJT A CJ CD Ref No Parts N...

Page 73: ...K3053 Chi p R ERJ3GSYJ183V R646 RK3056 Chip R ERJ3GSYJ333V R647 RK3048 Chip R ERJ3GSYJR82V R648 RK3052 Chip R ERJ3GSYJI53V R649 RK3044 C hiD R ERJ3GSYJ332V R 65G RK3038 Chip R ERJ3GSYJ102V Ref No Part...

Page 74: ...CD T D I 004 XD 0230 Diode D AN202U T1Q 6 D1005 XD 0230 O i ode DAN202U T106 01007 XD0230 D i ode DAN202U T106 01008 XD 0254 D i ode 1SS355 TE 17 0 009 XD 0230 Diode DAN202U T106 Ref No Parts No Desc...

Page 75: ...055 RK3038 C h P R ERJ3GSYJ102V Rf 056 RK3034 C h P R ERJ3GSYJ471V Ref No Parts No Description Parts Name R1057 RK3034 Chip R ERJ3GSYJ471V R1058 RK3038 C hip R ERJ3GSYJ102V R1059 RK3034 C hip R ERJ3GS...

Page 76: ...FRO N T Ci rcui t Board E l m m AP0022 Dia Nut Screw 2 6 M 2B C VOL Z003 W asher C1001 CU3047 Chip C Cl608JB1HI03KT A FFQ015 Light Shield Cloth CN1005 UE0223 Connector 53263 0890 FF0031 Cloth 7 30 D1...

Page 77: ...ns Card 70 O S 3 6 2 A Specifications Card 70T E H M 4 2 M C Packing FP0D99 Indicate Seal FP0100 Sea T O H K 385 1tern Carton H M 0148 1tern Carton T HP0002 Protection Bag lnstr Card HP0039 Protection...

Page 78: ...3 DC regulated power supply 13 80V 25A or more 4 Power meter 5 Linear detector 6 SG or RF generator P A U n it A d ju s tm e n t P o in ts should be equipped with 20 25A current limit and current mete...

Page 79: ...x 2 SSG OFF Mode USB Current Meter 3A CN605 unit total current VR602 Connect terminal pin of NFB unit to the ground check the total current in transmission mode Then remove terminal pin from ground a...

Page 80: ...5A or more 3 Frequency counter 500MHz or more 4 Spectrum Analyzer iG H zorrnore 5 Oscilloscope 100MHz or more P L L U n it A d ju s tm e n t P o in ts L735 TC705 L706 L707 L708 T P L712 L734 L709 TC76...

Page 81: ...ange f 7 0999MHz TP6 1V 3V 7 1000MHz 3V 4 3V VC03 Lock range U0 1500MHz TP0 VC03 TC961 2 5V When the voltage is f 10 4999MHz TC961 6 45V or below adjust the unit to 6 5V again 6 45V 7 0V f 10 5000MHz...

Page 82: ...2kHz RX UT IF Shift center 456 70kHz 0 2kHz TX UT IF Shift center 456 50kHz 0 2kHz Frequency 7 1000MHz FM J703 TC701 L702 78850 00kHz Adjust TC701 at first then L702 when TC701 can not be adjusted Le...

Page 83: ...quency 250 3Hz 1 2 3 4 5 6 7 8 Freq Counter EJ26 u CN99 1 1 249 6 251 0Hz Tone Frequency 156 3Hz 1 2 3 4 5 6 7 8 Freq Counter J26 u CN99 1 1 156 2 157 2Hz Tone Level 156 3Hz 1 2 3 4 5 6 7 8 Oscillosco...

Page 84: ...200M Hz 4 Distortionmeter A Fvoltagemeter 5 8Qspeaker 6 Oscilloscope 7 N Badjustmenttool Main Unit Adjustment Setting Oscilloscope Main Unit Adjustment Points V F U O VRI5 V R 11 V R 2 L6f l c n O VR...

Page 85: ...repeatedly to obtain the maximum receiving signal L56 57 58 L59 12 13 L66 L68 L69 Mode FM 14 1000MHz SG output OdBji Mod 1kHz 3 5kHzDEV Distortion Meter L59 L12 L13 Adjust repeatedly to obtain the max...

Page 86: ...scope 6 S M eter A djustm ent Item Condition Measurement Adjustment Equipment Terminal Unit Parts Method RX Total Gain SG output 40dB i Mod OFF Mode USB f 14 0993MHz RF Gain OdB AF Voltmeter SP Main V...

Page 87: ...F GAIN from 10dB orderly the meter swings shorter and shorter FILTER Switching Output OFF Mode USB AM CW Check Switch the FILTER in every mode except FM the noise sound should be changed Band Sensitiv...

Page 88: ...egulatedpower supply 13 80V25Aor more shouldbe equippedw ith20 25Acurrent lim it 4 Power meter 100W 1 9 30M H z 10W 1 9 60M Hzormore 5 Lineardetector 6 A Fgenerator 6000 7 A Fvoltagemeter 8 Oscillosco...

Page 89: ...inal VR6 Turn VR6 counterclockwise so that the total current becomes 20A Be careful not to run much current for short time Power Mode FM Power Meter HF Antenna Terminal VR7 Turn VR7 clockwise to decre...

Page 90: ...LSB USB Oscilloscope HF Antenna Terminal VR3 VR4 Adjust VR3 and VR4 so that the carrier suppression is 50dB 1 300 or below at 100W The carrier suppression should be decreased in both USB and LSB CW Wa...

Page 91: ...um value 60dB or below Spurious AG output OFF Mode FM Band MHz 1 9 3 5 10 14 18 21 24 28 HF Antenna Terminal Check 52dB or below 47dB or below in 10MHz band only L9 Adjust so that the value is within...

Page 92: ...PC BORD VIEW 1 CPU Unit Side A 2 C P UU n itS id eB 3 V o l U n itS id eA 4 Vol Unit Side B 5 Jack Unit Side A r 6 Jack Unit Side B o o...

Page 93: ...7 Main Unit Side A 50...

Page 94: ...i H 3 S 3 jgP S di s i SBggs m m 9 s r to e e i3 E B E toED u to H E D tD a r n P R i l A a t o 3 HHA _ o W gp 1 1 1 M M W uyy yyy 4 2 l 5 S S U 2 C M o o a o p i S a a f I a a a t S C H is 1 1 5 6 h...

Page 95: ...O U C 3 c o o o o o o o o O O O O O f TT mT7 J PD09A09M P122AQ5M C6W 100U16V O CP602 L806 OR0012 O 0603 2SC1972 TBP P01X A VRfiOl 220 w 0602 O L 1 j ZBF2530 JPJ2545 01 510 O CP610 JPJ254S 0 1 510 J60...

Page 96: ...s g ifS QUID 03 0 4 0 0 3 J 8 3 7 O 4 7 K C 0 4 cm tK isI ROSS 5 6 Q 0 E C B 7 e G T Q i J U IB a _____ rrls cowiGM iiu i K y H R B n o IC O N IM 2 M 4 r Q w e 4 2 iBIco m M7tim T B T T 1U R Q 4 0 M4...

Page 97: ...1 1 F ilterU n itS id eA 3 C 5 4 3 56 P C N J CL O C V J f J o c Ifc CO r Q O CJ X irj in o I uo lO U I o r X Q 54 ip 1 8 E o 3 2 O t n r s o o o o o CN509 P122A05M o it o...

Page 98: ...m 1 H 5M 3 0 a 3 CMS 22 m r r F tfi IQ s njfT ara v f 1 o b o oil C L g g J r B iD cS fe HLS4198 ASM 1 ML i O a u y am o V uF ciU e n n RSV9 O a 31 M 1 pC Q m I w Q IB J s i S i la w L iwie c i MU 8 8...

Page 99: ...1 3 P L LU in tS id eA T Z 0 0 5 6 J J U U T Z L T w j Q X70 O P O CN702 OOOO B6B ZR 1 n il y o 2 X o B 5 i5 bhje Ar i W c j U X 1 0 8 7 o o 56...

Page 100: ...Ar x r i3 n 9s 74HC4040 s o 2 2 e yysw ry en...

Page 101: ...cn 0 3 BLOCK DIAGRAM P U J CC O U K T O y T j l iiii i ii i ii i i fi8 iH s fr 3 s...

Page 102: ...E x p l o d e d V i e w f o r E D X 1 1 Front V iew 2 R ear V iew 01 cn...

Page 103: ...ST0054...

Page 104: ...o C D BLACK PINK...

Page 105: ...AJ0017 AJ0017 AJ0017...

Page 106: ...C V 0 0 0 1 CD...

Page 107: ...UE0258...

Page 108: ...05 00...

Page 109: ......

Page 110: ...0273 RLS 93 TE11 1 A ICI XA0224 NJM2904M T1 JRC 1 A IC2 XA0224 NJM2904M T1 JRC 1 A J1 UJ0Q33 HEC2781 010520 1 M JP1 RDI 013 JPW02 R01 1 H JPZ ROI 013 JPW02 R01 1 H JP3 RDI 013 JPW02 R01 1 H O CD Ref N...

Page 111: ...L0015 SVR 12 1 M swi UQ0D15 SPPJ22727A 1 M SW 2 UR0013 SRRY101AN R15 1 H SW 3 US0020 ESDI 522209 1 M TCI CT0036 ECV12IT20X64T 1 H VC1 CV0001 UV44B 300P H VC2 CVQQ01 UV44B 300P 1 H VR1 RH0105 EVM1YSX50...

Page 112: ...vj o C onnectionExam ple Supplied co ax cable A d ju stm en t Point...

Page 113: ...5 ON H 7 7 1 5max SWR 7 1MHz 100W 7 ON H 6 6 1 5max SWR 10 1MHz 100W 10 ON H 7 5 7 5 1 5max SWR 14 1MHz 100W 14 ON H 8 8 1 5max SWR 18 1MHz 100W 18 ON H 8 5 8 5 1 5max SWR 21 1MHz 100W 21 ON H 9 9 1 5...

Page 114: ...PC Bord View for EDX 1 S ide A S3 CN5 W2 p a t 5 B JP8 o O Svi SPPJ2 CN PV 71...

Page 115: ...S n sK E iafe 7 p 4 7O hsBisk 33 0 m i a n KIZOtBBt nS m ci isi DTCH4EU C9 m Z l9 0 047 047 A17 i n R15 liflKca 0 1 0 2 R1O0 8KO c it 0 047 IC I f ib lC ie 47 N JM 2904j_Jree 10K R10C 8K V0wo ORa i0K...

Page 116: ...S c h e m a t i c D i a g r a m f o r E D X 1 73...

Search results

Summary of Contents for DX-70

Reviews:

Related manuals for DX-70

Brands by name

Popular brands

Alinco DX-70, Service Manual

Search results

Summary of Contents for DX-70

Reviews:

Related manuals for DX-70

Brands by name

Popular brands