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DP990/DP995service manual

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5.2.Installing/Uninstalling the Antenna

To install the antenna, insert the antenna on the top of the radio and turn it clockwise until it is fastened.
To uninstall the antenna, hold its lower part turn it counter-clockwise to loosen it.

5.3.Installing/Uninstalling Belt Clip

To install the belt clip, aim the two screw holes on the belt clip to the two at the back of the radio, and screw up the

screws using a Phillips screwdriver.
To uninstall the belt clip, loosen the screws and take off the belt clip.

5.4.Disassembling Aluminum-alloy Holder and Components

of Main Part

Step 1 Take down the belt clip.
Step 2 Take down the antenna.
Step 3 Take down the battery.
Step 4 Screw down the two bolts on the top housing of the radio.
Note: If the belt clip has been installed, the bolts have been removed. In this case, just insert a flat-head screwdriver

into the gap between the top housing and aluminum-alloy holder, and rotate counterclockwise the screwdriver to

take off the housing.
Step 5 Screw down the six bolts using a T10 screwdriver, and pull evenly the both ends of the aluminum-alloy

holder to separate it from the top-housing assembly. Unplug the flexible flat cable from the socket. Now the

aluminum-alloy holder and the mainboard are separated from the top housing.

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Содержание DP990

Страница 1: ...DP990 DP995 V190409 ShenZhen Kirisun Communications Co Ltd Professional wireless communication system solution supplier SERVICE MANUAL ...

Страница 2: ...Belt Clip 14 5 4 Disassembling Aluminum alloy Holder and Components of Main Part 14 5 5 Detaching Main Board from Aluminum Alloy Holder 15 5 6 Detaching Key Board 15 5 7 Explosion Diagram 16 6 Tuning 21 6 1 Preparation 21 6 2 Tuning PC Mode 22 6 2 1 Frequency Bands 22 6 2 2 VCO 22 6 2 3 Tx 22 6 2 4 VOX 23 6 2 5 Low Voltage Tx 23 6 2 6 Rx 23 6 3 Test Items Test Mode only 23 6 3 1 Rx 23 6 3 2 Tx 24 ...

Страница 3: ...rial Lists and Schematic Diagrams 136 174 MHZ 55 Table 3 Material List Electronic Part 55 Figure 1 Top layer Layout Drawing of Main Board 66 Figure 2 Bottom layer Layout Drawing of Main Board 66 Figure 3 Top layer Layout Drawing of Key Board 67 Figure 4 Bottom layer Layout Drawing of Key Board 67 Figure 5 Schematic Diagram of Main Board 68 Figure 6 Schematic Diagram of Key Board 74 ...

Страница 4: ...re are explosives and harmful gases e g lower deck of the hull fuel and chemical storage facilities and area where the air contains chemicals particles dust or metal dust Please turn off the radio when close to blasting area and electric blasting detonators Replacing or charging batteries in potentially explosive atmosphere is prohibited Damaged Antenna A broken antenna may cause mild burn when co...

Страница 5: ... 19 Up key 2 Side key 1 11 Numeric key 20 LCD screen 3 PTT key 12 Battery latch 21 Audio accessory interface 4 Side key 2 13 Battery 22 LED indicator 5 Menu OK key 14 Hang up Home key 23 Power Volume knob 6 Left key 15 Right key 24 Channel knob 7 Dial key 16 Back key 25 Top key 8 Speaker 17 Cover screw 9 Down key 18 Microphone ...

Страница 6: ... LED Indicator LED State Device State Red light on Emitting signals Red light flashing Low battery receiving emergency alarm or startup self test failed Green light on Receiving signals e g voice message and data or traffic detected Orange light on A call is received and the radio is in the duration before reset in analog mode or in call hang time in digital mode Orange light flashing The radio is...

Страница 7: ...DP990 DP995service manual 6 3 Circuit Description 3 1 Overall Circuit ...

Страница 8: ...ain basis of in band fluctuation the filter can improve suppression to out of band harmonic wave and spurious signal Automatic Power Control Circuit APC In the circuit of automatic power control and temperature detection the drain current from drive power amplifier and final power amplifier converts to voltage through the sampling resistor and subtracter circuit composed of the first operational a...

Страница 9: ...nals caused by amplification and effective signals enter a mixer IC5 At this moment the first local oscillator signals the VCO generates pass the low pass filter and enter the mixer for difference frequency mixing with the effective signlas to generate the first IF singals 73 35MHz for UHF and 51 65MHz for VHF The signals pass an LC frequency selective network to enhance the surpression of other c...

Страница 10: ...der of a PLL chip for frequency division generating reference frequency i e step frequency F1 The frequency generated by a VCO passes an LPF to filter second harmonic and then enters the PLL chip for frequency division to generate frequency F2 Phase comparison between F2 and F1 is performed in a phase detector PD generating continuous pulse current When the current passes a loop filter its RC inte...

Страница 11: ...ed and a minimum protection voltage of 6 3V The MAIN BATT voltage passes a PMOS switch and undergoes two stage conversion The voltage is converted into 3 6V through a DC DC converter in the first stage and four power supplies through a PMU in the second stage to power every part of the baseband circuit The VBAT voltage provides through a BAK LDO a backup voltage to charge a button cell which is us...

Страница 12: ...ut by the DSP into analog signals Flow of Audio Signals The microphone converts audio signals into electrical signals which are then amplified by the PGA of the codec and sampled by the ADC of the codec The signals are then converted into digital audio signals sent to the DSP for processing sent to the DAC TLV5614 to convert to modulated signals The RF module modulates and amplifies the signals Fi...

Страница 13: ...to 512 contact lists Custom ringtones and vibration alert 4 2 Advanced Functions Setting a channel spacing from 25 kHz to 12 5 kHz through programming Display of field intensity to indicate signal strength Display of remaining battery capacity and low battery alarm 4 3 Settings The radio has been set before delivery However to meet customers requirements further configuration may be necessary for ...

Страница 14: ...5 1 Installing Uninstalling the Battery Installing the Battery Aim the two stop blocks at the upper edge of the battery at the two slots at the top of the radio and insert the stop blocks into the slots Figure 1 Press the battery latch downward When you will hear a click the battery is locked Figure 2 Uninstalling the Battery Power off the radio Lift the battery latch and the battery will go up Pu...

Страница 15: ...ng Aluminum alloy Holder and Components of Main Part Step 1 Take down the belt clip Step 2 Take down the antenna Step 3 Take down the battery Step 4 Screw down the two bolts on the top housing of the radio Note If the belt clip has been installed the bolts have been removed In this case just insert a flat head screwdriver into the gap between the top housing and aluminum alloy holder and rotate co...

Страница 16: ...d screwdriver into the gap between the volume and channel knobs and the top housing and prize and pull out the knobs Step 2 Remove the nut of the volume knob using a special tool Step 3 Unplug the FPC cables of the earphone board numeric keys PTT key from the sockets on the key board Step 4 Unsolder the leads of the speaker and mic using a soldering iron Step 5 Take down the four screws on the key...

Страница 17: ...etching PU oil jet 1 3 7MBS 4182 02A W Waterproof metal dome array for numeric key 5 3 7 kidney shaped five point 1 4 157F15000087 Dual side adhesive black Φ39 8 36 0 2 1 5 6SS1 4182 HK1A Key FPC board SMD nesting 1 6 7MHJ 4182 03A W Dual side adhesive for numeric key PCB 1 7 7MHB 4182 01A W0 Dust screen nonwoven cloth black 1 8 7MHB 4182 02A W0 Speaker dust screen PVC mesh holed black 0 15mm 1 9 ...

Страница 18: ...er IP68 1 29 2RW3 RP08110SNJX V2B Potentiometer switch IP68 1 30 7MJS 4142 02A W0 F9 PTT key spindle stainless steel original color SUS304 1 31 7PLP 4182 01A W0 Sticker for TF card holder PVC 1 32 7MHR 4182 05D W0 Waterproof silicon rubber cover for TF card wire drawing stainless steel and silicon rubber orange 1 33 6SS1 4127 HK2B Past Mask nesting for encryption board 1 34 7SMF 014030M SZCT N Cro...

Страница 19: ... print transparent one side adhesive 1 58 6SS1 4072 HL1A Auxiliary board SMD nesting 1 59 7MHJ 4072 01A W Dual side waterproof adhesive for auxiliary PCB 1 60 6SS1 4188 HLA SMD auxiliary FPC board 1 61 157F15000043 EVA R rubber pad black adhesive 10 0 9 0 2 0mm 1 62 7MHB 4334 01A W0 Conductive cloth for front shielding cover 40 5 19 5 0 1mm 1 63 157F15000069 Highland barley paper 24 8 0 2mm 0 2mm ...

Страница 20: ...ative cover PC1414 black etched 1 3 7MBP 4193 01A W0 Top housing cover PC1414 black etched 1 4 7MHB 4193 02A W0 Speaker dust screen PVC mesh holed black 0 15mm 1 5 7MHB 4193 01A W0 Dust screen nonwoven cloth black 1 6 7WFP 4195 01A PET sheet of FPC hole of Ex key 1 7 7MHJ 4182 02A W Dual side adhesive for side key PCB 1 8 61FP000010 Speaker dust screen PVC mesh holed black 0 15mm 1 9 7MBS 4182 01B...

Страница 21: ...sk nesting for encryption board 1 30 7SMF 014030M SZCT N Cross recessed countersunk head machine screw low carbon steel nickel plated 1 31 7MHR 4072 06A W0 O shaped ring silicon rubber outer diameter 4 mm wire diameter 1 0 mm 6 5 32 147K03000008 Aluminum housing original color ground sand blast and electroplanted surface 1 33 7SMS 025075M SZYB N1 Torx round head machine screw stainless steel M2 5 ...

Страница 22: ...58 157F15000069 Highland barley paper 24 8 0 2mm 0 2mm thick single side adhesive 1 59 7MHC 4072 01A W Knob nut brass inner diameter 6 mm outer diameter 9 mm 2 4mm thick 2 60 7MBR 4182 01A WC Light pipe silicon rubber transparent 1 61 7MHS 4072 08A W Knob circlip stainless steel T 0 3 original color 2 62 147K01000052 Volume knob black etched white oil brushed 1 63 147K01000051 Coding knob black et...

Страница 23: ...que ncy High Freque ncy F1 F2 F3 F4 F5 F6 F7 F8 Tx MH z 136 00 0 158 00 0 174 00 0 136 0 00 140 0 00 146 0 00 152 0 00 158 0 00 164 0 00 170 0 00 173 9 75 Rx MH z 136 05 0 158 05 0 174 00 0 136 0 50 140 0 50 146 0 50 152 0 50 158 0 50 164 0 50 170 0 50 174 0 00 6 2 2 VCO Set the radio to Rx state a Make the channel work at a high frequency and check whether the voltage at TP101 is 3 9V b Make the ...

Страница 24: ...ude to 116 dBm and the modulation deviation to 3 kHz 1 5 kHz In PC mode at F1 F8 wait till the value becomes stable and click OK Off threshold Set the RF signal amplitude to 119 dBm and the modulation deviation to 3 kHz 1 5 kHz In PC mode at F1 F8 wait till the value becomes stable and click OK L1 Squelch Thresholds On threshold Set the RF signal amplitude to 123 dBm and the modulation deviation t...

Страница 25: ...l Specifications General Frequency Range UHF 350 400MHz 400 480MHz VHF 136 174MHz Channel Capacity 1024 Channel Spacing 12 5kHz 20kHz 25kHz Weight 380g with battery and antenna without belt clip Rated Operating Voltage 7 4V Average battery duration 5 5 90 high power emission 2000mAh lithium battery Analog 10 5 hrs Digital 14 hrs Environment Operating Temperature 30 60 Storage Temperature 40 85 Wat...

Страница 26: ...ement range DC 10mV 10V Input impedance High input impedance of minimum circuit load Oscilloscope Max 30MHz DC bandwidth High sensitivity frequency counter Frequency range 50Hz 10KHz Frequency stability 0 2ppm or lower Ammeter 20A Audio voltmeter Frequency range 50Hz 10KHz Voltage range 1mV 10V Audio sweep generator Frequency range 50Hz 5KHz or higher Output 0V 1V Distortion tester Capability 3 or...

Страница 27: ...n FM chip U201 Replace it 5 Red light on during transmitting but receiver hears no voice A The power amplifier transistor outputs no power Replace with a new amplifier B The microphone does not work well Replace with a new microphone 6 Green light on during receiving but cannot hear voice A The speaker does not work well Replace with a new speaker B The audio amplifier IC5 does not work well Repla...

Страница 28: ...or PCS C101 C104 C110 C113 C130 C13 4 C147 C201 C304 C306 C308 C3 10 C313 C315 C317 C318 C322 C 324 C326 C512 C603 C607 C611 C613 C614 C615 C622 C633 C63 7 C801 C833 C1100 C1101 C910 C913 C1002 C1008 C1009 C1010 C1011 C1012 C1013 C1015 C102 5 C1048 C1053 C1054 C1055 C10 56 C1057 C1058 C1061 C1063 C1 091 C1092 C1415 C920 C928 C92 9 C1087 C1090 C1093 C1094 C12 53 C1273 C1275 C1279 C1288 C1 289 C1295...

Страница 29: ...0 X5R100 10 6 Multi layer chip capacitor PCS C1121 C1122 C160 C162 C600 C 617 C632 C912 C915 C917 C909 C923 C1000 C1006 C1018 C1027 C1255 C1257 C1089 C1282 C128 3 21 22 2CC1 06 C0G500 47 0J SMD capacitor PCS C142 C612 C1224 3 23 2CC1 06 X7R160 10 3 Multi layer chip capacitor PCS C144 1 24 2CC1 06 X5R6R3 2 25M SMD capacitor PCS C155 C921 C922 C924 C925 C93 0 C1047 7 25 2CC1 10 X7R160 10 4K Multi la...

Страница 30: ...0G500 7 R0B Multi layer chip capacitor PCS C1079 C1238 C1240 3 46 2CC1 10 C0G500 22 0J Multi layer chip capacitor PCS C1081 1 47 2CC1 10 C0G500 56 0J Multi layer chip capacitor PCS C1082 C1442 2 48 2CC1 10 C0G500 3 R6J Multi layer chip capacitor PCS C1239 C1050 C1422 C1246 4 49 2CC1 10 C0G500 13 0J Multi layer chip capacitor PCS C1086 C1447 2 50 2CC1 10 X7R500 33 2K Multi layer chip capacitor PCS ...

Страница 31: ...acitor PCS C1419 1 68 2CC1 10 C0G500 27 1J Multi layer chip capacitor PCS C1424 C1425 C1099 3 69 2CC1 10 X7R500 10 3K Multi layer chip capacitor PCS C1426 C1436 C1431 C1423 4 70 2CC1 10 C0G500 4 R0B Multi layer chip capacitor PCS C1461 1 71 2CC1 10 C0G500 39 0J Multi layer chip capacitor PCS C1445 1 72 2CC1 10 C0G500 18 0J Multi layer chip capacitor PCS C1446 C1457 C1443 3 73 2CC1 10 C0G500 30 0J ...

Страница 32: ...1 L1404 3 93 121I05000018 Active mixer PCS IC5 1 94 1IS1 R1244N001B DCDC power converter chip PCS IC100 1 95 1IS1 OPA348 Operational amplifier IC PCS IC1000 1 96 3CB1 DF23C16DS SMD board to board connector PCS J800 1 97 3CB1 0555600607 Board to board connector male PCS J801 1 98 2LG1 SWPA3015S 4R7 Wire wound power inductor PCS L100 1 99 2LW1 3315 4R7K SMD wire wound inductor PCS L101 L102 L103 3 1...

Страница 33: ...ire wound inductor PCS L1223 1 121 2LW1 16UC 181J SMD wire wound inductor PCS L1227 1 122 2LW1 16UC 680G SMD wire wound inductor PCS L1406 1 123 2LW1 20UC 221J SMD wire wound inductor PCS L1408 1 124 2LW1 25UC 100JA SMD wire wound inductor PCS L1411 1 125 2RS1 16 330J Chip resistor PCS L1412 1 126 2LH1 R401R5 R02 05 SMD air core inductor PCS L1413 1 127 2LL1 16 3N9SA Multi layer chip inductor PCS ...

Страница 34: ...10 38 C199 7 149 2RS1 06 220J SMD resistor PCS R204 R205 R206 R207 R212 R21 3 R220 R221 R222 R223 R224 R8 05 R417 R155 14 150 2RE1 06 1202 Precise SMD resistor PCS R237 R242 R900 R901 4 151 2RE1 10 49R9 D Precise SMD resistor PCS R302 1 152 2RE1 06 4702 Precise SMD resistor PCS R500 R501 R504 R506 R507 R60 1 R615 R1070 R129 9 153 2RE1 06 2003 Precise SMD resistor PCS R600 1 154 2RE1 06 2002 Precis...

Страница 35: ... 2RS1 06 184J Chip resistor PCS R1212 R53 2 183 2RS1 10 510J Chip resistor PCS R1217 R1238 R1408 R1445 4 184 2RS1 10 152J Chip resistor PCS R1221 R1443 2 185 2RS1 10 392J Chip resistor PCS R1231 1 186 2RS1 10 301J Chip resistor PCS R1417 R1418 2 187 2RS1 10 682J Chip resistor PCS R1411 R1412 2 188 2RE1 06 2402 Precise SMD resistor PCS R1413 1 189 2RS1 10 332J Chip resistor PCS R1415 1 190 2RS1 10 ...

Страница 36: ...2 217 121I05000080 SMT IC PCS U903 1 218 121I05000024 SMT IC PCS U904 1 219 1IS1 XC6204B502M R SMD voltage regulator IC PCS U1000 U1004 U1202 3 220 1TC1 UMC4 SMD Darlington transistor PCS U1001 U1006 U1400 U1010 U101 1 5 221 1IS1 SKY72310 11 SMT IC PCS U1003 U1007 2 222 5OT1 12R8 HHL 03 03 Voltage controlled temperature compensated crystal oscillator PCS U1008 1 223 1IS1 MS5614 D A converter IC PC...

Страница 37: ...V shield cover 1 PCS P16 1 244 7MHC 4187 05A W Top layer shield cover 5 PCS P15 1 245 147K02000062 Shield cover of DP990EX mainboard P1 PCS P17 1 246 136P04000074 Multi layer PCB PCS 1 247 61SL000008 Burning assembly PCS 1 248 9FSO0000165 Burning software PCS 1 249 1IM1 TC58BVG0S3 HBAI4 Storage IC PCS U501 1 250 2CC1 10 C0G500 5 R0C Multi layer chip capacitor PCS C1084 C1460 2 251 2RS1 10 473J Chi...

Страница 38: ...ntact sheet PCS P18 1 Appendix 2 Material Lists and Schematic Diagrams 350 400 MHZ Table 2 Material List Electronic Part NO Material Code Materia Name Unit Part NO QTY 1 6BLS MS621FE Button cell PCS BT100 1 2 61SM000264 DP980 05 mainboard PCS 1 3 2CC1 06 C0G500 151J SMD capacitor PCS C88 C1014 C1026 C1059 C1060 C1064 C1067 C1068 C1069 C10 70 C1095 C1096 C1097 C1232 C 1233 C1405 C1406 C1428 C1433 C...

Страница 39: ...pacitor PCS C119 1 13 112C03000022 Ceramic capacitor PCS C120 1 14 112C03000023 Ceramic capacitor PCS C121 1 15 2CC1 06 C0G250 5R0C SMD capacitor PCS C122 C1204 2 16 2CC1 06 NP0500 100 Multi layer chip capacitor PCS C123 C132 C148 C302 C626 C80 6 C809 C904 C1066 9 17 112C03000024 Ceramic capacitor PCS C124 1 18 2CC1 06 NP0500 560 Multi layer chip capacitor PCS C125 1 19 112C03000009 Ceramic capaci...

Страница 40: ...2 2CC1 10 C0G500 1R0B Multi layer chip capacitor PCS C1075 C1085 C1439 C1451 4 43 2CC1 10 C0G500 5R0C Multi layer chip capacitor PCS C1079 C1450 2 44 2CC1 10 C0G500 220J Multi layer chip capacitor PCS C1081 C1446 2 45 2CC1 10 C0G500 560J Multi layer chip capacitor PCS C1082 C1442 2 46 2CC1 10 C0G500 130J Multi layer chip capacitor PCS C1086 C1245 C1263 3 47 2CC1 10 C0G500 471J Multi layer chip cap...

Страница 41: ...05 D1006 D1007 D1008 D1009 D1201 D1202 D1203 D1204 D12 05 14 75 1DV1 1SV323 Varactor PCS D1206 1 76 1DS1 RN142S SMD switch diode PCS D1400 D1401 D1402 D1403 4 77 3FW1 42932 302320 Voltage regulator diode PCS F100 1 78 5FT1 SAFFB1G56KB0F 0A Duplexer PCS F900 1 79 5XC1 73R4 XDCAH73 M SMD crystal filter PCS F1200 1 80 5FE1 BLM21P300S SMD EMI suppression filter PCS FB100 FB102 FB604 FB1402 DE 1 DE2 DE...

Страница 42: ...4 L1215 L1216 L141 0 L1415 6 109 2LW1 16UC 100GA SMD wire wound inductor PCS L1217 L1225 2 110 2LW1 16UC 220GC SMD wire wound inductor PCS L1218 L1400 L1401 L1402 4 111 2LW1 20UC 331J SMD wire wound inductor PCS L1219 1 112 112L05000003 Wire wound inductor PCS L1220 L1221 2 113 2LL1 16 3R3KA Multi layer chip inductor PCS L1222 1 114 2LW1 25UC 332K SMD wire wound inductor PCS L1223 1 115 2LH1 R401R...

Страница 43: ...R653 R654 R655 R808 R809 R918 R919 32 144 2RS1 06 472J SMD resistor PCS R114 R115 R610 R612 R614 R10 38 C199 7 145 2RS1 06 220J SMD resistor PCS R204 R205 R206 R207 R212 R21 3 R220 R221 R222 R223 R224 R 805 R417 R155 14 146 2RE1 06 1202 Precise SMD resistor PCS R237 R242 2 147 2RE1 10 49R9 D Precise SMD resistor PCS R302 1 148 2RE1 06 4702 Precise SMD resistor PCS R500 R501 R504 R506 R507 R61 5 R1...

Страница 44: ...ip resistor PCS R1202 R1218 R1225 3 176 2RE1 10 5601 Precise SMD resistor PCS R1204 1 177 2RS1 06 823J Chip resistor PCS R1205 1 178 2RS1 06 331J Chip resistor PCS R1206 1 179 2RS1 06 124J Chip resistor PCS R1207 1 180 2RS1 10 151J Chip resistor PCS R1210 1 181 2RS1 06 184J Chip resistor PCS R1212 R53 2 182 2RS1 10 510J Chip resistor PCS R1217 R1238 R1408 R1445 4 183 2RS1 10 152J Chip resistor PCS...

Страница 45: ...1D TRB LDO regulator PCS U901 U1101 U1200 3 216 1IS1 XC6204B332MR SMD voltage regulator IC PCS U902 U1002 2 217 121I05000092 SMT IC PCS U903 1 218 121I05000024 SMT IC PCS U904 1 219 1IS1 XC6204B502MR SMD voltage regulator IC PCS U1000 U1004 U1202 3 220 1TC1 UMC4 SMD Darlington transistor PCS U1001 U1006 U1400 3 221 1IS1 SKY72310 11 SMT IC PCS U1007 1 222 5OT1 12R8 HHL 0303 Voltage controlled tempe...

Страница 46: ...esistor PCS R1414 1 250 2CC1 10 C0G500 8R0C Multi layer chip capacitor PCS C1246 C1269 2 251 2CC1 10 C0G500 3R6J Multi layer chip capacitor PCS C1243 1 252 2LL1 16 4R7KA Multi layer chip inductor PCS L904 1 253 2CC1 10 X7R160 474K Multi layer chip capacitor PCS C835 1 254 121T03000010 Field effect transistor PCS Q800 Q311 2 255 112R01000007 Chip resistor PCS R608 1 256 2RS1 16 301J Chip resistor P...

Страница 47: ...DP990 DP995service manual 46 271 7MDC 4072 02A G STP antenna cathode contact sheet PCS P18 1 Figure 1 Top layer Layout Drawing of Main Board Figure 2 Bottom layer Layout Drawing of Main Board ...

Страница 48: ...DP990 DP995service manual 47 Figure 3 Top layer Layout Drawing of Key Board Figure 4 Bottom layer Layout Drawing of Key Board ...

Страница 49: ...DP990 DP995service manual 48 Figure 5 Schematic Diagram of Main Board ...

Страница 50: ...DP990 DP995service manual 49 ...

Страница 51: ...DP990 DP995service manual 50 ...

Страница 52: ...DP990 DP995service manual 51 ...

Страница 53: ...DP990 DP995service manual 52 ...

Страница 54: ...DP990 DP995service manual 53 ...

Страница 55: ...DP990 DP995service manual 54 Figure 6 Schematic Diagram of Key Board ...

Страница 56: ...C1 06 X7R500 102K SMD capacitor PCS C1 C111 C128 C152 C200 C 618 C619 C803 C804 C808 C 400 C800 C2312 C2314 C231 8 15 4 2CC1 06 X7R500 103K SMD capacitor PCS C2 C5 C1028 C1032 C1073 C1234 C1256 C1258 C1259 C1260 C1261 C1267 C1270 C1274 C1277 C1290 C1291 C1302 C2400 C2401 C2402 C2412 C2439 C2440 C2441 C2443 C2444 C2445 C129 C 802 C2300 C2306 C2325 C23 27 C2328 C2359 R54 37 5 2CC1 10 X5R100 106 Mult...

Страница 57: ...C307 C309 C311 C312 C316 C319 C320 C321 C325 C500 C503 C506 C509 C602 C604 C606 C608 C610 C616 C630 C811 C911 C914 C628 C700 C702 C704 C926 C927 C931 C1305 39 9 2CC1 06 C0G500 101J SMD capacitor PCS C102 C126 C131 C135 C140 C143 C151 C156 C301 C305 C314 C323 C501 C504 C507 C510 C601 C605 C609 C623 C627 C805 C807 C810 C812 C813 C814 C815 C816 C817 C818 C819 C820 C821 C822 C919 C502 C505 C508 C511 C...

Страница 58: ...i layer chip capacitor PCS C902 C1084 C1085 3 32 2RS1 06 000O SMD capacitor PCS C906 R135 R216 R217 R438 R628 R903 R907 R908 R916 R1002 R1003 R1046 R1053 R1056 R1060 R1065 R1235 R2301 R2404 R2410 R240 R 702 R909 R1018 R705 R100 R1058 R832 29 33 2CC1 10 C0G500 470J Multi layer chip capacitor PCS C907 C1301 C2427 C2431 C 2429 C2337 C1272 7 34 2CC1 06 X5R6R3 474 Multi layer chip capacitor PCS C916 C9...

Страница 59: ... R825 R826 R829 R1013 R1015 R1016 R 1024 R1042 R1043 R1044 R1 050 R1057 R1241 R1242 R12 43 R1244 R2324 R2325 R240 9 32 56 2RS1 06 103J SMD capacitor PCS C1287 R914 R917 R112 R11 6 R117 R118 R121 R122 R12 3 R124 R125 R126 R127 R12 8 R130 R131 R132 R134 R13 6 R137 R139 R141 R225 R22 7 R405 R406 R407 R409 R41 0 R411 R412 R416 R602 R60 9 R617 R649 R700 R701 R80 3 R804 R806 R814 R827 R82 8 R1234 R1247 ...

Страница 60: ...CS D101 1 80 1DR1 1SR154 400 SMD rectifier diode PCS D102 1 81 1DS1 DAN222 SMD switch diode PCS D103 1 82 2RS1 16 000O Chip resistor PCS FB105 L2415 R635 R640 R6 41 R644 L2416 7 83 1DS1 1SS387 Switch diode PCS D600 D1000 D1200 D104 4 84 1DR1 ESD9B5 TVS diode PCS D800 D801 2 85 1DV1 1SV325 SMD varactor 7200 568 4208 8200 4200 4 5200V 7808 PCS D1001 D1002 D1003 D1004 D1005 D1006 D1007 D1008 D2401 D2...

Страница 61: ...1003 L1010 L2413 3 108 2LW1 20UC 390GB SMD wire wound inductor PCS L1005 1 109 2LW1 16UC 680G SMD wire wound inductor PCS L1011 L2300 L2302 L2400 L 2411 5 110 2LW1 20UC 560GA SMD wire wound inductor PCS L1012 1 111 2LW1 20UC 331J SMD wire wound inductor PCS L1219 1 112 112L05000003 Wire wound inductor PCS L1220 L1221 2 113 2LL1 16 3R3KA Multi layer chip inductor PCS L1222 1 114 2LW1 25UC 332K SMD ...

Страница 62: ...Q101 Q804 2 139 1TT1 DTC144EE SMD transistor PCS Q102 Q602 Q801 Q802 Q803 Q2300 Q1 Q199 8 140 121T03000001 Field effect transistor PCS Q600 Q800 2 141 1TT1 2SC4617 R SMD transistor PCS Q1000 Q1206 2 142 1TT1 BFU550A RF triode PCS Q1001 Q1002 Q2301 Q2303 Q2402 5 143 1TT1 2SC5086 Patch triode PCS Q1207 Q2302 Q2400 Q2401 Q2403 Q2404 6 144 1TF1 RD01MUS2 501 SMD field effect transistor for portable dig...

Страница 63: ...R623 R632 R638 R639 R647 R648 R1073 R1236 R2300 R 2304 R2349 11 166 2RS1 06 104J SMD capacitor PCS R631 R642 R643 R646 R802 R810 R811 R1059 R1062 R1 067 R1245 R2418 R2419 R24 21 R2422 15 167 2RS1 10 203J Chip resistor PCS R634 1 168 2RS1 10 102J Chip resistor PCS R636 R1237 R2334 3 169 2RS1 10 150J Chip resistor PCS R637 1 170 2RS1 10 330J Chip resistor PCS R645 1 171 2RS1 10 100J Chip resistor PC...

Страница 64: ...ip resistor PCS R2339 1 202 2RS1 10 104J Chip resistor PCS R2343 R2332 2 203 2RT1 NTH5G16P40B333J SMD thermistor PCS R2348 1 204 2RS1 06 124J Chip resistor PCS R2402 R2427 2 205 2RS1 06 473J SMD capacitor PCS R2403 1 206 2RS1 06 684J Chip resistor PCS R2405 1 207 2RS1 06 184J Chip resistor PCS R2408 R53 2 208 2RS1 10 152J Chip resistor PCS R2412 1 209 2RE1 06 51R0 Precise SMD resistor PCS R2417 1 ...

Страница 65: ... Digital IF intermediate frequency system PCS U1201 1 237 1IL1 NJM2904V SMD linear IC PCS U2301 1 238 125O01000006 SMD crystal resonator PCS X100 Y900 2 239 125O02000001 Voltage controlled crystal oscillator PCS X900 1 240 1IS1 ADE1L SMD passive variable frequency drive PCS Z2400 1 241 5FC1 DSF753SDF 0705 SMD crystal filter PCS Z2401 1 242 3CB1 0555600607 Board to board connector male PCS J801 1 2...

Страница 66: ...8 C1263 2 264 2CC1 10 C0G500 560J Multi layer chip capacitor PCS C1262 1 265 2LW1 16UC 331J SMD wire wound inductor PCS R2414 1 266 2CC1 10 C0G500 5R6B Multi layer chip capacitor PCS C2333 1 267 2CC1 10 C0G500 R50C Multi layer chip capacitor PCS C2344 1 268 2CC1 10 C0G500 130J Multi layer chip capacitor PCS C2334 1 269 2RE1 10 2003 Precise SMD resistor PCS R108 1 270 2RS1 10 155J Chip resistor PCS...

Страница 67: ...MD wire wound inductor PCS L2317 1 283 2CC1 10 C0G500 6R8C Multi layer chip capacitor PCS C1017 1 284 7MDC 4072 01A G STP antenna anode contact sheet PCS 1 285 7MDC 4072 02A G STP antenna cathode contact sheet PCS 1 Figure 1 Top layer Layout Drawing of Main Board Figure 2 Bottom layer Layout Drawing of Main Board ...

Страница 68: ...DP990 DP995service manual 67 Figure 3 Top layer Layout Drawing of Key Board Figure 4 Bottom layer Layout Drawing of Key Board ...

Страница 69: ...DP990 DP995service manual 68 Figure 5 Schematic Diagram of Main Board ...

Страница 70: ...DP990 DP995service manual 69 ...

Страница 71: ...DP990 DP995service manual 70 ...

Страница 72: ...DP990 DP995service manual 71 ...

Страница 73: ...DP990 DP995service manual 72 ...

Страница 74: ...DP990 DP995service manual 73 ...

Страница 75: ...DP990 DP995service manual 74 Figure 6 Schematic Diagram of Key Board ...

Страница 76: ...DP990 DP995service manual 75 ...

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