Puxing PX-777 Service Manual Download Page 5 | Manualshive

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3. SELF-PROGRAMMING MODE

For frequency,signal,feature write to the radio

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Summary of Contents for PX-777

Page 1: ...ICE MANUAL CONTENTS INTRODUCTION 2 GENERAL 2 REALIGNMENT 3 TROUBLE SHOOTING GUIDE 6 TECHNICAL SPECIFICATION 7 FUNCTION SPECIFICATION 8 CIRCUIT DESCRIPTION 9 SEMICONDUCTOR DATA 16 PARTS LIST 17 BLOCK DIAGRAM 22 PCB BOARD 23 SCHEMATIC DIAGRAM 25 ...

Page 2: ...ate this equipment near electrical blasting caps or in an explosive atmosphere This equipment should be serviced by a qualified technician only SERVICE This radio is designed for easy servicing Refer to the schematic diagrams printed circuit board views and alignment procedures contained within GENERAL Your Transceiver is an electronic product of exact design and should be treated with care The su...

Page 3: ...ODE USER MODE For normal use when turn on enter this mode PC MODE used to read and program radio SELF PROGRAMMING MODE Hold down MONI and menu key accomplished by turning on the VOL POWER switch until SELF displays 2 ...

Page 4: ...2 LCD DISPLAY ...

Page 5: ...3 SELF PROGRAMMING MODE For frequency signal feature write to the radio ...

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Page 7: ...nna Weight 220g Including battery Antenna impedance 50Ω Transmitter Frequency Stability 2 5PPM Output Power 5W 4W 0 5W Max Frequency Deviation 5KHz Audio Distortion 3 Modulation Character 3dB 3dB Adjacent Channel Power 65dB Spurious Radiation 7 5UW Occupied Bandwidth 16KHz Receiver RF Sensitivity 0 2UV Audio Distortion 3 Audio Response 2dB 10dB Adjacent Channel Selectivity 60dB Intermodulation Rej...

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Page 16: ... automatic gain output 21 AT X O Transmitter data output select control 22 AR X I Receiver data input audio amplifier adjustment input 23 BATT Test O Battery check Reset 24 VOX I VOX input 25 AN SQL I Squelch signal input port 26 OSCin I Internal oscillator input 27 OSCout O Internal oscillator output 28 VSS GND 29 EN1 I Encoder data input 30 EN2 I Encoder data input 31 MONI I Monitor key input 32...

Page 17: ...267 C411 C453 C202 C203 C561 C271 C663_1 C388_1 C319_1 C250 CAP C103 C101 C573 C571 C511 C521 C182 C208 C316 CAP C354 C662 CAP C302 C418 C102 C147 C661 C201 C131 C0402 105P 4 C517 C611 C609 C664 C263 C255 C361 C363 C362 C213 C348 C330 C331 C0402 120P 1 C259 C0402 12P 3 C224 C241 C359 C0402 15P 1 C113 C0402 18P 3 18NH C523 C246 C0402 1P 2 C327 C329 C264 C265 C394 C513 C512 C592 C591 C0402 222P 1 C2...

Page 18: ...6P 1 C155 C0603 6P 2 C325 C344 C0603 104P 1 L333 太阳电诱 C0805 0 1uF 4 E367_1 E364 E411 C541 C0805 1uF 4 E454 E319_1 C104 C143 C0805 2 2uF 4 E435 E413 E363_1 E474 E412 E242 E326_1 E180 E311 E273 R0402电阻 L121 R457 R663 R364_1 R363_2 R235 R134 R362 C251 R662 R0402 1 8K 1 R365_1 R413 R301 R524 R113 R131 R363 R321 R314 R352 R594 R595 R269 R547 R529 R528 R391 R351 R459 R809 R223 R258 R429 R434 R453 R201 R...

Page 19: ...02 3 3K 3 R367_1 R366_1 R264 R0402 30K 2 R422 R177 R0402 330R 3 R128 R811 R126 R426 R427 R431 R432 R423 33K R0402 39K 1 R554 R0402 3K3 4 R435 R355 R359 R357 R0402 3K9 1 R123 R0402 470R 1 R572 R0402 470K 1 R553 R518 R592 R525 R527 R526 R322 R581 R132 R142 R186 R182 R597 R222 R221 R387 R0402 47R 4 R326_1 R133 R143 R247 R272 R273 R574 R575 R576 R243 R311 R538 R262 R271 L342 L323 R0402 560R 3 R412 R36...

Page 20: ...22 D321 D342 D341 D_ESC HSC277 4 D212 D235 D211 D111 D_SMA 1SR154 400 1 D611 D_USC 1SV220 1 D323 D_USC MA77 1 D155 D0603 GREEN 1 D571 D0603 RED 1 D573 D ESC PMSD4148 2 D312_1 D311 D USC 3V 1 R806 D USM MA742 MA742 1 D661_1 集成类 SOP8 24C16 1 U561 SOP8 LM4558 1 U411 SOT24 3SK241 2 T241 T221 SOT89 2SC4988 1 T121 SRP8 10K 1 PR511 SRP8 1K 2 PR752 PR311 1 SSOP10 P 225 TA7368F 1 U451 SSOP16 225 TA31136 1 ...

Page 21: ...SM DTA114EE DTA114YE 1 T663 电解类 ECS2213 100uF 1 E457 ELA3216 10uF 4 E456 E631 E623 E269 晶体类 CR_DS0603 32 768KHz 1 CR521 CR_DS6055 29 250MHz 1 FL251 FX DS0971 14 4MHz 1 CR311_1 可调类 VR1208 10K 1 VR552 VR1208 50K 1 VR471 线圈类 LC042320 3T 1 L151 0 4 1 5 3 LC042424 4T 1 L163 0 4 1 5 4 LC042426 5T 2 L165 L167 0 4 1 5 5 L5T 8T 1 L142 0 31 1 5 8 LC032326 6T 2 L211 L212 0 31 1 5 6 其它类 PEF450R15KR1 450K 1 FL...

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Page 25: ...271 C28 T275 DTA114EE C283 104P C282 104P R278 0R C830 102P R833 150K R831 150K R832 150K 5V PB1 RXi ATX QT D0 D1 D2 D3 PC7 PB3 PB4 HT1621 CS GND_D PC6 5V PB1 PB5 SB PC4 C854 103P TX in 6 N C 7 RX in 11 V bias 9 N C 10 Vss 8 C539 120P R539 100K R540 100K C540 104P R527 22K C527 150P C526 223P C525 223P C524 104P R528 100K R529 22K C542 104P R541 47K C528 120P R866 10K R867 10K R864 3K3 R862 1K8 R8...

Page 26: ... 3T L213 3T L214 3T L216 3T L219 39nH L220 18nH L223 3T L224 3T L231 22nH D215 N U D214 HVC350B D217 HVC350B D220 HVC350B T231 3SK229 R213 100K C205 102P R212 0R C212 15P C272 33P C254 103P C264 104P C284 104P R262 470R T261 2SC4215 R261 680K R264 2 7K R274 1K2 OSC in 1 Dec IF out IF in 5 MIX in 16 RSSI 12 MIX out 3 OSC out 2 N det 13 N rec 14 Vcc 4 GND 15 C273 224P C261 103P C262 2P C283 104P C28...

Page 27: ...432 1K5 R434 51K C431 223P R435 4K7 2 3 1 8 4 U411A LM4558 7 6 5 U411B LM4558 3 3 1 1 2 2 D422 1SS372 T421 MRF497 C438 470P R438 100R R437 3K3 R436 1K8 5T C408 102P C401 103P T431 2SK1824 C434 10P C214 3P C215 N U C216 470P C217 0 3P VC220 6P C221 3P5 C222 470P C223 0 3P VC226 6P C227 4P5 C228 470P C231 102P C232 102P C233 470P C234 8P C237 10P C238 0 5P VC241 6P C242 4P C230 470P R214 N U R217 10...

Page 28: ... 5P C342 1P T332 2SJ243 T352 UMC4 C351 100P L351 270nH D352 1SV325 L329 101T R331 150R C347 102P T331 2SK508NV K52 T321 2SC4617 S R324 47K C323 470P C322 470P R351 180R L352 270nH L353 18nH L355 3 3uH D351 1SV325 C352 2P C353 33P C355 15P C359 5P C360 7P C361 10P C362 1P T351 2SK508NV K52 E323 10uF L324 101T R346 1K MOD 5R C272 33P C284 104P C285 221P C286 221P C287 10P C288 471P C276 27P C278 104...

Page 29: ...K R431 30K C405 102P E431 4 7uF R432 1K5 R434 51K C431 223P R435 4K7 2 3 1 8 4 U411A LM4558 7 6 5 U411B LM4558 3 3 1 1 2 2 D422 1SS372 T421 MRF497 C438 470P R438 100R R437 3K3 R436 1K8 5T C408 102P C401 103P T431 2SK1824 C434 10P C214 3P C215 N U C216 470P C217 0 3P VC220 6P C221 3P5 C222 470P C223 0 3P VC226 6P C227 4P5 C228 470P C231 102P C232 102P C233 470P C234 8P C237 10P C238 0 5P VC241 6P C...

Page 30: ...P C161 3P C162 470P C163 10P C164 9P C165 10P D156 HVU131 C166 2P C167 5P C168 3P C169 1 5P 5T P_TX P_TX C114 470P R115 680R R128 120K C138 470P C153 NC C135 N U C125 470P R135 0R C158 NC R153 0R T121 2SC4988 C122 470P C126 N U R123 150K L122 15nH R122 330R R127 47K R126 22R R136 47R R137 47K R138 47K C137 470P C152 22P C151 1P C144 470P C142 1uF L402 101T R401 470R C402 104P R402 1K8 C403 470P R4...

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