background image

 

- 30 -

 

C13,21,22,44,82,115,

132,158,275,276,239 

CE0251067Z 10UF 

25WV 

C80,181 CE0252267Z 

22UF 

25WV 

C33,37,144,175 CE0254767Z 

47UF 

25WV 

C156,238,293,107 CE0161077Z 

100UF 

16WV 

C152,179 CE0163377Z 

330UF 

16WV 

C91 CE0104777Z 

470UF 

10WV 

C243,248 CE0251087Z 

1000UF 

25WV 

C35 CEM254767Z 

47UF 

25WV 

FL1 EFCFW455HT 

CERAMIC 

FILTER 

FL2 EFCFE107MX 

CERAMIC 

FILTER 

FL3 EFX8106952 

CRYTAL 

FILTER 

X1 EYCAB10240 

CRYSTAL 

FILTER   

X3 EYCAA15360 

CRYSTAL 

FILTER 

X4 EYBAE10697 

CRYSTAL 

FILTER   

IC6 ENMA00612Z 

I.C 

AN-612 

IC3 ENRG871997 

I.C 

RCI-

8719-97 

IC7 ENR004558Z 

I.C 

BA4558 

IC9 ENSM06130Z 

I.C 

TDA6130 

VC0 ENNOHIC070 

IC070 

Q8,17,20 T2SC01674L 

2SC1674L 

Q51 T2SC02314F 

2SC2314F 

Q23,52 T2SC01906Z 

2SC1906 

Q36 TDTC0124ES 

DTC124ES 

Q24,43 TDTC0114ES 

DTC114ES 

Q60 TDTA0124ES 

DTA124ES 

Q30,33,62 T2SA01282E 

2SA1282AE 

Q1 ,2,9,10,11,21,22, 

25,28,29,46,50,27 

T2SC01675L 2SC1675L 

Q3,4,5,7,13,14,15,16

,31,34,35,39,40, 42, 

44,53,56,57 

T2SC00945P 2SC945P 

Q6,38 T2SA00733P 

2SA733P 

Q55 T2SA01869Z 

2SA1869 

Q18,19 FZZZJ00310Z 

F.E.T. 

J310 

D3 ,4-7 ,9,10,20,21, 

13-15 ,24-29 ,32-38, 

50-57 ,60-65, 68,69, 

75-82 ,92 ,93,85-90, 

102,104-108,141,150, 

155,95-98,R269 

ED1N04148Z 1N4148 

D1,2,11,12,30,31 ED1N00060P 

1N60P 

D110 ED1N04003Z 

1N4003 

D109 ED1N04007Z 

1N4007 

D16,17 EDSS00053Z 

1SS53 

D59,72 EDMA00027W 

MA27W-A 

D71,103,145,156 EDMA00027T 

MA27T-A 

D49 EDSV00251Z 

SVC-251SPA 

D70 EDZD05519Z 

5.1V 

0.5W 

D73 EDZD05759Z 

7.5V 

0.5W 

L2,3 ECIFT12002 

7MC-7172ABW 

L6 ECIFT12290 

I.F.T. 

L20,21,22 ECIFT12012 

I.F.T. 

L25 ECIFT12013 

I.F.T. 

L23,24 ECIFT12016 

I.F.T. 

L1,11 ECIFT12252 

I.F.T. 

L44 ECIFT12255 

I.F.T. 

L9,10 ECIFT12256 

I.F.T. 

L12 ECIFT12257 

I.F.T. 

L15,43 ECIFT12258 

I.F.T. 

L40 ECIFT12262 

I.F.T. 

L14 ECIFT12263 

I.F.T. 

L5 ECIFT12253 

I.F.T. 

L7,42 ECIFT12440 

I.F.T. 

L8 ECIFT12492 

I.F.T. 

L48 ECCHK16096 

470UH 

L503,504 ECCHK16000 

0.47UH 

L26,27,46 ECCHK16003 

470UH 

T1 ECCHK16004 

1.1MH 

EI-19 

L33,37 ECCHK16070 

22UH 

L47 ECCHK16176 

4.7UH 

2.4mm 

L16 ECCHK16246 

22UH 

2.4MM 

L28,30 ECSPG18003 

0.8x6.5x7.5t 

L29 ECSPG18075 

0.8x6x8.5t 

L31 ECSPG18365 

0.8x6.5x 

7.5tmm 

L35 ECSPG18001 

0.8x3.5x7t 

L38 ECRFZ10048 

25UH 

L39,41,13 ECBAD18526 

3.5x6x1.2 

VR7,12,16,18 

RE10200041 

1K VM6CK PV 

VR13,14 

RE50200042 

5K VM6CK PV 

VR1,2,6,17 RE10300031 

10K 

VM6CK 

PV 

VR9,15 RE10400043 

100K 

VM6CK 

PV 

VR3,4 RE50400087 

500K 

OHM 

VR10 RE10100074 

100 

OHM 

RA1 RCS0870028 

RESISTOR 

ARRAY 

CA1 CCS0873000 

CAPACITPR 

ARRAY 

JP65,73,119,122 WX01070707 

JUMPER 

WIRE 

J9 WX01070703 

JUMPER 

WIRE 

JP1-4,8,21,24,25,28, 

33,34,45,49-52,55,56 

,58 ,60,63,64,71,75- 

77,79,80,82-84,88,95 

,96,102,109,110,111,

114,117,118,121,129,

132-137,139,145-150, 

152-156 ,160x2 ,164, 

165,168,169,173,175,

182,183,185,191,192,

193,195-197,199,177 

WX01060605 

 

JUMPER WIRE 

JP201 ,202,207, 211, 

214-218,220,221,227-

231,237,238,240,R19,

R305 

WX01070705 JUMPER 

WIRE 

JP10,12,15,16,29,30-

32 ,35-38 ,40,43,44, 

46-48,57,59,78,85-87 

,90,92-94,97-101,106 

,107,120,124-126,128 

,130,131,138,142,144

,151,158,163,166,176

,178,179,187,189,190

,194,198,200,203,206

,208-210,212,213,219 

,225,226,232-36,239, 

241,242,L36 

WX01070710 JUMPER 

WIRE 

JP74 WX01070712 

JUMPER 

WIRE 

JP54,66,67,70,74 WX01070713 

JUMPER 

WIRE 

JP180,188,89,127,172 WX01070714  JUMPER WIRE 

JP6 ,11,17,140, 143, 

204,223 

WX01070716 JUMPER 

WIRE 

J4,22,26,30,7,10,17,

25 

EX07N48223 PCB 

CONN/S 

J6,9,11,18 EX07N48350 

PCB 

CONN/S 

J28,21 EX07N48490 

PCB 

CONN/S 

J5,20,3 EX07N48222 

PCB 

CONN/S 

J13 EX07N48331 

PCB 

CONN/S 

J14 EX07N48224 

PCB 

CONN/S 

J33 EX07N48209 

PCB 

CONN/S 

J12 EX07N41227 

PCB 

CONN/S 

SP EX07N41330 

PCB 

CONN/S 

TP2,3,5 EX07N48612 

PCB 

CONN/S 

TP7,8,9 XZZZ90006Z 

PCB 

STOPPER 

J33 EX07N48967 

WIRE 

CONN/H 

J16 EX07N48041 

WIRE 

CONN/H 

J17-J2(40Z) EX07N49030 

WIRE 

CONN/H 

J4 EX07N48917 

WIRE 

CONN/H 

J14-J6(20Z)-J5-

J8(40Z) 

EX07N48928 WIRE 

CONN/H 

J6 EX07N48920 

WIRE 

CONN/H 

J5 EX07N48915 

WIRE 

CONN/H 

J30,J10 EX07N48918 

WIRE 

CONN/H 

J7 EX07N49031 

WIRE 

CONN/H 

J21,J22 EX07N48887 

WIRE 

CONN/H 

JB-J6(40Z)-J11 EX07N48968 

WIRE 

CONN/H 

J20-METER EX07N48997 

WIRE 

CONN/H 

J4(METER)-J16(40Z) EX07N48901 WIRE 

CONN/H 

J1(METER)-J4(40Z) EX07N49002 

WIRE 

CONN/H 

J11-J8(20Z)-12(40Z)- 

J10 

EX07N49029 WIRE 

CONN/H 

J18 EX07N49024 

WIRE 

CONN/H 

J3 EX07N49073 

WIRE 

CONN/H 

J9 EX07N49023 

WIRE 

CONN/H 

J3(METER)-J9(20Z) EX07N49005 

WIRE 

CONN/H 

LAMP-J1(20Z) EX07N48233 

WIRE 

CONN/H 

R233-J1(50Z) EX07N48896 

WIRE 

CONN/H 

Summary of Contents for DX 949

Page 1: ......

Page 2: ...stallation 8 CHAPTER 3 CIRCUIT DESCRIPTION 3 0 Introduction 11 3 1 PLL Circuit 11 3 2 Receiver Circuit 11 3 3 Transmitter Modulation Circuit 11 3 4 Transmitter Amplifier Circuit 11 CHAPTER 4 ALIGNMENT...

Page 3: ...us Emissions 55 dB Carrier Suppression 55 dB Audio Frequency Response 300 to 2500Hz Antenna Impedance 50 Ohms Output Indicators Meter shows relative RF output power SWR and AM Modulation Transmit LED...

Page 4: ...or maximum receiver sensitivity it is desired that the control be adjusted only to the point where the receiver background noise is eliminated Turn fully counter clockwise then slowly clockwise until...

Page 5: ...onitor signal strength RF output power SWR level and AM modulation level 9 TALKBACK CONTROL Pushing this knob turns the Talkback circuit on and off Adjust this knob for desired volume of Talkback This...

Page 6: ...t have much effect on the signal to noise ratio of strong signals It is mostly used for SSB reception 14 MODE SWITCH This control allows you to select one of the following operating modes USB AM LSB 1...

Page 7: ...to negative and the red goes to positive 3 FREQUENCY COUNTER CONNECTOR This connector is for the optional Galaxy FC 347 six digit frequency counter All connections are made through this connector No...

Page 8: ...65 MHz 7 27 035 MHz 27 27 275 MHz 8 27 055 MHz 28 27 285 MHz 9 27 065 MHz 29 27 295 MHz 10 27 075 MHz 30 27 305 MHz 11 27 085 MHz 31 27 315 MHz 12 27 105 MHz 32 27 325 MHz 13 27 115 MHz 33 27 335 MHz...

Page 9: ...control at this setting This SQ is now properly adjusted The receiver will remain quiet until a signal is actually received Do not advance the control too far or some of weaker signals will not be hea...

Page 10: ...d the plastic insulating jacket of the microphone cable ii All leads should be cut to the same length Strip the ends of each wire 1 8 and tin the exposed wire Before beginning the actual wiring read c...

Page 11: ...hed back onto the microphone cable before starting to solder If the washer is not captive to the pin receptacle body make sure that it is placed on the threaded portion of the pin receptacle body befo...

Page 12: ...sisting of Q17 The RF signal is fed into the mixer circuit of the Q18 and then into the AM IF section of the receiver depending on the mode of operation The signal is then detected by either the AM de...

Page 13: ...12 DX 949 CIRCUIT DIAGRAM...

Page 14: ...13 CHAPTER 4...

Page 15: ...e short PCB from TP7 TP8 and TP9 Set radio to CH 1 AM RX mode Clarifier setting in 12 o clock Connect Oscilloscope to TP3 Set radio to CH 1 AM RX mode Connect frequency counter IC 3 Pin 8 L14 L15 VC1...

Page 16: ...nce Power Between CH 1 and CH 40 SSB ALC Audio signal 30 mV 1 KHz to microphone Set radio to CH 19 USB TX mode VR13 11 5 W SSB Carrier Balance Set radio to CH 19 USB TX mode Mic Gain off Connect scope...

Page 17: ...y clockwise RF SG setting to 27 184 MHz 0 5 uV MOD to off L11 L12 Audio output 2V S N 10 dB NB Adjust Set radio to CH 19 AM mode RF SG setting 27 205 MHz 100 uV MOD 30 NB ANL switch on Connect Voltmet...

Page 18: ...17 Figure 4 2 Receiver test setup...

Page 19: ...18 Figure 4 3 Main PCB Adjustment Locations CHAPTER 5...

Page 20: ...t periodic inspection and maintenance Important points to be checked regularly are as follows Check Item Action Whip antenna option If cracked or broken replace it Coaxial cable If sheath is cracked s...

Page 21: ...e parts list The reference designators are in alphanumeric order PART LIST DX 949 VR P C B ITEM REFERENCE NUMBER RANGER PART NUMBER DESCRIPTION 1 EPT095950Z VR P C B 2 J1 J2 EX07N48223 PCB C S 2P 3 J3...

Page 22: ...RCY012224Z 2 2K ohm 0 1W 8 R12 RCY014724Z 4 7K ohm 0 1W 9 R7 RCY011034Z 10K ohm 0 1W 10 C5 RCY012234Z 22K ohm 0 1W 10 C7 CK1059AB1A 0 5PF 50V 11 C6 CK1030AB1A 3PF 50V 12 C3 C4 CK2104AB7R 0 1 F 50V 13...

Page 23: ...22...

Page 24: ...712G TR 2SC2712 4 ROTARY SW EWRT32000S ROTARY SW 5 J7 J9 J10 EX07N48223 PCB C S 2P 6 J1 EX07N48234 PCB C S 2P 7 J3 J5 EX07N48350 PCB C S 3P 8 J4 EX07W48824 PCB C S 3P 9 J6 EX07N48490 PCB C S 4P 10 J2...

Page 25: ...1 EPT690050Z MIC P C B 2 C501 C502 C503 C504 CC0501027L 0 001 F 50V 3 C505 C506 CC0501037L 0 01 F 50V 4 Q501 TDTA0124ES T R DTA124ES 5 L501 ECCHK16001 CHOKE COIL 5 6 H 6 L502 ECBAD18526 BEAD COIL 7 MI...

Page 26: ...m 1 4W 5 C3 RCU141024Z 1K ohm 1 4W 6 R3 RCU144724Z 4 7K ohm 1 4W 7 R2 RCU141034Z 10K ohm 1 4W 8 R8 RCM144724B 4 7K ohm 1 4W 9 R10 WX01070712 JUMPER WIRE 10 C4 C5 C6 CC0501037L 0 01 F 50V 11 C2 CE02510...

Page 27: ...GAIN RV10203528 VR 1KB 4 DIM ON OFF RV50203542 5KB PUSH SW 5 MIC R B ON RV10203541 1KA PUSH SW 6 RF POWER RV50203525 VR 5KB 7 BAND P C B ENRG0IC080 MODULAR IC080 8 JP1 WX01070710 JUMPER WIRE 9 J2 J8 J...

Page 28: ...SPLAY 3 R325 R326 RCY011024Z 1K ohm 0 1W 4 C501 CK1103AB6U 0 01 F 50V 5 ANT EX01Y40116 LED LAMP 6 R B EX01Y40117 LED LAMP 7 T R EX01Y40114 LED LAMP 8 HI MED LO EWSL31027K SLIDE SW 9 USB AM LSB EWSL310...

Page 29: ...28 DX 949 MAIN PCB REMARK SOLDER SIDE WHITE...

Page 30: ...4 RCP161064Z 10M 1 16W R244 RCP121514Z 150 1 2W R239 RCP121034Z 10K 1 2W C218 CC0500301L 3PF 50WV C79 CC0500501L 5PF 50WV C1 49 108 147 CC0501004L 10PF 50WV C76 CC0501804L 18PF 50WV C36 CC0502704L 27P...

Page 31: ...7 5tmm L35 ECSPG18001 0 8x3 5x7t L38 ECRFZ10048 25UH L39 41 13 ECBAD18526 3 5x6x1 2 VR7 12 16 18 RE10200041 1K VM6CK PV VR13 14 RE50200042 5K VM6CK PV VR1 2 6 17 RE10300031 10K VM6CK PV VR9 15 RE10400...

Page 32: ...31 IC8 ENTA07222A TA7222AP Q54 T2SB00754Y 2SB754Y Q49 T2SC02166C 2SC2133C Q47 T2SC01969C 2SC1969C Q37 T2SA01869Z 2SA1869...

Page 33: ...32...

Page 34: ...33 AT0949040A...

Page 35: ...34...

Reviews: