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PART LIST     
DX 949 MAIN PCB 

 

REFERENCE 
NUMBER 

RANGER 
PART NO. 

DESCRIPTION 

 EPT069610Z 

MAIN 

P.C.B 

TP7,8,9 EPT120060Z 

P.C.B 

DC 

B+ 

TP6 RCP160004Z 

 1/16W 

R246 RCP161004Z 

10 

 1/16W 

R267 RCP161504Z 

15 

 1/16W 

R241 RCP162204Z 

22 

 1/16W 

R113,133,213,253,282 RCP164704Z  47 

 1/16W 

R130,215,220,294 RCP165604Z 

56 

 1/16W 

R11, 101 

RCP166804Z 

68 

 1/16W 

R3,5,8,30,33,76,81, 

95,169,174,260,263 

RCP161014Z 100 

 1/16W 

R32,100,245 RCP161514Z 

150 

 1/16W 

R23 RCP161814Z 

180 

 1/16W 

R140,163,177 RCP162214Z 

220 

 1/16W 

R31,99 RCP162714Z 

270 

 1/16W 

R6,10,16,24,248,254,

300 

RCP163314Z 330 

 1/16W 

R188,250,268,280,293

,299,154,155,156 

RCP164714Z 470 

 1/16W 

R258,266 RCP165614Z 

560 

 1/16W 

R4,50,89,94,209 RCP166814Z 

680 

 1/16W 

R74 RCP168214Z 

820 

 1/16W 

R62 ,64,67,72,79,80, 

98, 116,118,122,223, 

136-138,123,270,271, 

115,252,160,164,166,

167,179,186,205,206, 

214,232,189,238,240,

237,291,292,295,303,

320 

RCP161024Z 1K 

 1/16W 

R88,192 RCP161224Z 

1K2 

 1/16W  

R54 ,87 ,97,132,207, 

233,247,251,255,273 

RCP161524Z 1K5 

 1/16W 

R226 RCP161824Z 

1K8 

 1/16W 

R20,27,71,73,75,114,

134,162,197,279,283,

313,259 

RCP162224Z 2K2 

 1/16W 

R9,25,28,121,153 RCP162724Z 

2K7 

 1/16W 

R18,22,58,60,66,110,

128,171,191,219,274 

RCP163324Z 3K3 

 1/16W 

R52,57 RCP163924Z 

3K9 

 1/16W 

R26 ,84,131,165,190, 

195,196,252 

RCP164724Z 4K7 

 1/16W 

R83,92,264,265,93 RCP165624Z 

5K6 

 1/16W 

R14,40,41,70,82,312 RCP166824Z  6K8 

 1/16W 

R90,275 RCP168224Z 

8K2 

 1/16W 

R1,13,17,56,65,68,86

,159,161,175,181,202

,210,216,272,276,296

,297,173,227-231 

RCP161034Z 10K 

 1/16W 

R178,310 RCP161234Z 

12K 

 1/16W 

R180 RCP161534Z 

15K 

 1/16W 

R91,109,187,208 RCP162234Z 

22K 

 1/16W 

R2,262,309,311 RCP163334Z 

33K 

 1/16W 

R46 RCP163934Z 

39K 

 1/16W 

R7 ,29,61,63,96,126, 

150,157,185,218,222,

224 

RCP164734Z 47K 

 1/16W 

R21,105,107 RCP166834Z 

68K 

 1/16W 

R45 RCP168234Z 

82K 

 1/16W 

R12 ,42,43,44,51,53, 

104,108,112,182,184,

225,278,221 

RCP161044Z 100K 

 

1/16W 

R47,117,135,139,194 RCP162244Z  220K 

 

1/16W 

R49,55,170,172,176 RCP164744Z 270K 

 

1/16W 

R15,111,183 RCP164744Z 

470K 

 

1/16W 

R48 RCP168244Z 

820K 

 

1/16W 

R106 RCP161054Z 

1M 

 1/16W 

R193 RCP161554Z 

1M5 

 1/16W 

R124 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 

27PF 

50WV 

C287 CC0503304L 

33PF 

50WV 

C8 CC0508204L 

82PF 

50WV 

C4,70 CC0501015L 

100PF 

50WV 

C137 CC0501515L 

150PF 

50WV 

C31,136 CC0502715L 

270PF 

50WV 

C11,14 CC0503315L 

330PF 

50WV 

C23 CC0505615L 

560PF 

50WV 

C225 CC0500591A 

0.5PF 

50WV 

C52,197 CC0500101A 

1PF 

50WV 

C61,62,90,190 CC0500501A 

5PF 

50WV 

C84,89 CC0501504A 

15PF 

50WV 

C43 CC0501804A 

18PF 

50WV 

C54,55 CC0502204A 

22PF 

50WV 

C119,226,279 CC0503304A 

33PF 

50WV 

C202,224 CC0504704A 

47PF 

50WV 

C88 CC0506804A 

68PF 

50WV 

C150,191 CC0501015A 

100PF 

50WV 

C194,192 CC0501515A 

150PF 

50WV 

C195 CC0503904A 

39PF 

50WV 

C196,295,222 CC0501815A 

180PF 

50WV 

C139,141 CC0503904D 

39PF 

50WV 

C140 CC0501515D 

150PF 

50WV 

C130 CC0502004G 

20PF 

50WV 

C116,117 CC0506804G 

68PF 

50WV 

C281 CC0501015G 

100PF 

50WV 

C282 CC0501815G 

180PF 

50WV 

C220 CC0502215G 

220PF 

50WV 

C86 CC0502715G 

270PF 

50WV 

C85,201,203 CC0503915G 

390PF 

50WV 

C216,210 CC0504715G 

470PF 

50WV 

VC1 

CV050200AZ 

T/C 20PF 5Q 

C199 CD3005614Z 

560P 

300WV 

C7 ,47 ,50,74,95,99, 

100,118,120,110,174,

183,244,246,245 

CC0501027L 0.001UF 

50WV 

C81,173,193,206,207,

213,211,249,250,256,

259,272,292,302,304, 

215,236,270 

CC0501047L 0.1UF 

50WV 

 

C5 ,18 ,48,64,65,68, 

72,87,92,96,102,105,

106,143,151,160,233,

240,251,252,253,257,

258,260,261,263,266,

20 

CC0504737L 0.047UF 

50WV 

C32,42,45,46,162,163

,221 

CC0504727L 0.0047UF 

50WV 

C155 CC0502237L 

0.022UF 

50WV 

C200 CC1001037L 

0.01UF 

100WV 

C2,3,6,9,15,16,17,19

,131,51,57,58,60,63,

66,69,73,109,114,161

,127,133,284,134,135

,138,142,145,146,189

,205,262,278,217,219

,229,230,232,285,247

,298,254,255,265,267

,269,271,305 

CC0501037L 0.01UF 

50WV 

C97,149 CT0161046Z 

0.1UF 

16WV 

C154 CT0162246Z 

0.22UF 

16WV 

C98,180,299,300 CT0162256Z 

2.2UF 

16WV 

C40,178,296 CM0501045Z 

0.1UF 

50WV 

C77,237 CM0501024Z 

0.001UF 

50WV 

C78,184 CM0501035Z 

0.01UF 

50WV 

C39,185,41 CM0502235Z 

0.022UF50WV 

C176 CM0504725Z 

0.0047UF 

50WV 

C34,20 CM0504735Z 

0.047UF50WV 

C12 CM0502225Z 

0.0022UF 

50WV 

C10 CE0504747Z 

0.47UF 

50WV 

C67 ,75,153,157,170, 

186,187,198 

CE0501057Z 1UF 

50WV 

C159,214,242 CE0502257Z 

2.2UF 

50WV 

C103,182,38 CE0504757Z 

4.7UF 

50WV 

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...

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