Spender DHS3600 Service Manual Download Page 18 | Manualshive

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Spender DHS3600 Service Manual Download Page 18

Service manual SPENDER DHS3600

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KEYBOARD PC BOARD (BOTTOM VIEW WITH COMPONENTS)

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Summary of Contents for DHS3600

Page 1: ...Service manual SPENDER DHS3600 1 SERVICE MANUAL SPENDER MODEL DHS 3600 ...

Page 2: ... MAIN PC BOARD TOP VIEW WITH COMPONENTS 13 MAIN PC BOARD TOP VIEW 14 MAIN PC BOARD BOTTOM VIEW WITH COMPONENTS 15 MAIN PC BOARD BOTTOM VIEW 16 KEYBOARD PC BOARD TOP VIEW WITH COMPONENTS 17 KEYBOARD PC BOARD TOP VIEW 18 KEYBOARD PC BOARD BOTTOM VIEW WITH COMPONENTS 19 KEYBOARD PC BOARD BOTTOM VIEW 20 ADJUSTMENT POINTS 21 22 BILL OF MATERIAL 23 25 BLOCK DIAGRAM 26 SCHEMATIC DIAGRAM ...

Page 3: ...5 18 245 2125 34 245 4125 50 245 6125 66 245 8125 3 245 0250 19 245 2250 35 245 4250 51 245 6250 67 245 8250 4 245 0375 20 245 2375 36 245 4375 52 245 6375 68 245 8375 5 245 0500 21 245 2500 37 245 4500 53 245 6500 69 245 8500 6 245 0625 22 245 2625 38 245 4625 54 245 6625 70 245 8625 7 245 0750 23 245 2750 39 245 4750 55 245 6750 71 245 8750 8 245 0875 24 245 2875 40 245 4875 56 245 6875 72 245 8...

Page 4: ...orporates the functions of the second OSC second mixer second IF amplifier detector noise amplifier and noise detector The signal input to the IC is mixed with the RF signal of the second OSC to produce a 455kHz second IF signal The signal is amplified by the IF amplifier The signal passes through the ceramic filter F3 to provide the necessary selectivity Finally the signal is detected by the IC U...

Page 5: ...al The frequency control signal is output from the charge pump The signal passes through the passive LPF and goes to varicap to control the VCO frequency 3 2 Reference Oscillator Circuit The reference oscillator circuit in the PLL IC produces the 12 8MHz PLL reference frequency To stabilize the frequency the characteristics of the 12 8MHz crystal oscillator are controlled 4 TRANSMITTER 4 1 Transmi...

Page 6: ... Switch and LPF The signal from the power transistor passes through the D101 SW and LPF and is output from the ANT terminal U4 and PTT are used to switch between transmission and reception 4 6 Control System The CPU U4 operates at 3 6864 MHz clocks U6 controls the LCD driver 4 7 Power Supply The main of the system control is DC 7 4V ...

Page 7: ... 300MHz Accuracy 1ppm or Better Sensitivity 100mV or Better Oscilloscope Frequency Range DC 20MHz Measuring Range 0 01 15V RF Power Meter Measuring Range 0 1 10W Frequency Range 1 300MHz Impedance 50ohm Stabilized Power Supply Output Voltage 0 15VDC Output Current 3A or more External Load Connection Type 3 5Φ mono Impedance 4ohm 0 5W FM Modulation Analyzer Frequency Range 20Hz 5kHz Measuring Range...

Page 8: ...t Terminal Parts Method Remarks 1 Transmit 1 CH TX Lo RF Power meter ANT L10 L13 Adjust it to Power PTT ON Ammeter 4 5W Check 2 CH TX Hi RF Power meter ANT L10 L13 Adjust it to PTT ON Ammeter 4 5W Check 2 Transmit 1 CH TX Center Frequency ANT VR2 Adjust to Frequency PTT ON counter 500Hz or less 3 Modula 1 CH TX Center Modulation ANT VR1 Adjust to 5kHz tion analyzer Oscilloscope MIC Audio Signal Ge...

Page 9: ...Service manual SPENDER DHS3600 9 LCD DISPLAY DESCRIPTION SEMICONDUCTOR IDENTIFICATION 2SS268 B561 2SK508 3SK240 2SC3356 2SC3357 2SC1923 ...

Page 10: ...Service manual SPENDER DHS3600 10 SEMICONDUCTOR IDENTIFICATION 24C04 EEPROM LM386 HT1621B LCD DRIVER ...

Page 11: ...Service manual SPENDER DHS3600 11 SEMICONDUCTOR IDENTIFICATION AK2345 ...

Page 12: ...Service manual SPENDER DHS3600 12 TA31136 SEMICONDUCTOR IDENTIFICATION HT46R23 ...

Page 13: ...Service manual SPENDER DHS3600 13 MAIN PC BOARD TOP VIEW WITH COMPONENT ...

Page 14: ...Service manual SPENDER DHS3600 14 MAIN PC BOARD TOP VIEW ...

Page 15: ...Service manual SPENDER DHS3600 15 MAIN PC BOARD BOTTOM VIEW WITH COMPONENTS ...

Page 16: ...Service manual SPENDER DHS3600 16 KEYBOARD PC BOARD TOP VIEW WITH COMPONENT ...

Page 17: ...Service manual SPENDER DHS3600 17 KEYBOARD PC BOARD TOP VIEW ...

Page 18: ...Service manual SPENDER DHS3600 18 KEYBOARD PC BOARD BOTTOM VIEW WITH COMPONENTS ...

Page 19: ...Service manual SPENDER DHS3600 19 KEYBOARD PC BOARD BOTTOM VIEW ...

Page 20: ...Service manual SPENDER DHS3600 20 ADJUSTMENT POINTS ...

Page 21: ...Service manual SPENDER DHS3600 21 ADJUSTMENT POINTS ...

Page 22: ...AL FILTER 45MHz F1 F2 16 CHIP BEADS CB601 L30 L31 17 CHIP TAN 1µF C137 C166 18 CHIP TAN 2 2µF C241 C250 19 CHIP TAN 4 7µF C27 C227 20 CHIP TAN 10µF C90 C255 21 CHIP TAN 22µF C52 22 FCC CONECTOR 20 PINS J9 23 VARIABLE R 50K VR1 24 VARIABLE R 20K VR2 25 CHIP R 0603 0Ω R10 26 CHIP R 0603 100Ω R163 27 CHIP R 0603 270Ω R29 R117 28 CHIP R 0603 560Ω R138 29 CHIP R 0603 820Ω R23 30 CHIP R 0603 1KΩ R102 R1...

Page 23: ...R 0603 1MΩ R119 50 CHIP R 0603 1 8MΩ R165 R174 51 CHIP C 0603 10P C7 52 CHIP C 0603 15P C169 153 CHIP C 0603 27P C40 54 CHIP C 0603 39P C184 55 CHIP C 0603 91P C179 56 CHIP C 0603 100P C45 C122 C140 C141 57 CHIP C 0603 220P C146 C147 58 CHIP C 0603 470P C39 C42 C56 C64 C73 C81 C138 C148 C155 C167 C190 C204 C206 59 CHIP C 0603 560P C228 60 CHIP C 0603 102P C83 C98 C112 C131 C145 C161 C177 C226 C242...

Page 24: ...8 FET Q301 Q303 80 MA2S376 VARIABLE CAP DIODE DD301 D302D 306 307 81 MA360 VARIABLE CAP DIODE D305 82 2SK1588 TRANSISTOR Q15 83 2SA1362 TRANSISTOR Q7 84 DTC144EE TRANSISTOR Q14 Q16 Q24 Q9 85 2SC4617 TRANSISTOR Q21 Q23 86 2SC4986 TRANSISTOR Q4 87 2SK3476 FET Q13 88 2SK3475 FET Q32 89 44 545MHz X TAL RESONATOR X2 90 3 6864MHz X TAL RESONATOR X1 91 45MHz CRYSTAL FILTER F1 F2 92 SP32MM8 SPEAER SP1 93 ...

Page 25: ... 0603 1KΩ 112 CHIP R 0603 1 5KΩ 113 CHIP R 0603 2KΩ 114 CHIP R 0603 2 2KΩ 115 CHIP R 0603 4 7KΩ 116 CHIP R 0603 10KΩ 117 CHIP R 0603 22KΩ 118 CHIP R 0603 33KΩ 119 CHIP R 0603 47KΩ 120 CHIP R 0603 56KΩ 121 CHIP R 0603 120KΩ 122 CHIP R 0603 220KΩ 123 CHIP R 0603 330KΩ 124 CHIP R 0603 1MΩ 125 CHIP C 0603 0 5P 126 CHIP C 0603 1P 127 CHIP C 0603 1 5P 128 CHIP C 0603 2P 129 CHIP C 0603 4P 130 CHIP C 060...

Page 26: ...HIP C 0603 220P 145 CHIP C 0603 470P 146 CHIP C 0603 102P 147 CHIP C 0603 302P 148 CHIP C 0603 103P 149 CHIP C 0805 103P 150 CHIP C 0603 104P 151 LCD DISPLAY LCD1 152 MICROPHONE M1 153 HT1621 BONDING 154 CHIP R 0603 100Ω 155 CHIP R 0603 330Ω 156 CHIP R 0603 1KΩ 157 CHIP R 0603 4 7KΩ 158 CHIP R 0603 9 1KΩ 160 CHIP R 0603 20KΩ 161 CHIP R 0603 27KΩ 162 CHIP R 0603 47KΩ 163 CHIP C 0603 100P 164 CHIP C...

Page 27: ...OR SPEAKER CLOTH 7 KEYPAD BUTTON RUBBER 8 PTT BUTTON RUBBER 9 MIC SPK CAP 10 REAR ALUMINUM PLATE 11 BATTERY CONTACT 12 BATTERY CONTACT HOLDER 13 STEEL BATTERY CLAMP 14 PLASTIC BATTERY CLAMP 15 SPRING 16 LCD FRAME 17 LCD 18 LCD ZEBRA CONNECTOR 19 LCD PLATE 20 PAPER 21 VCO ALUMINUM COVER 22 LCD DRIVER IC BONDING COVER 23 BATTERY PLASTIC PACK 24 BATTERY CONTACT 25 BATTERY CHARGE CONTACT 26 BELT HOOK ...

Page 28: ...Service manual SPENDER DHS3600 28 SCHEMATIC DIAGRAM ...

Page 29: ...Service manual SPENDER DHS3600 29 SCHEMATIC DIAGRAM ...

Page 30: ...Service manual SPENDER DHS3600 30 SCHEMATIC DIAGRAM ...

Page 31: ...Service manual SPENDER DHS3600 31 SCHEMATIC DIAGRAM ...

Page 32: ...Service manual SPENDER DHS3600 32 SCHEMATIC DIAGRAM ...

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