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Related Manuals for Spender DHS3600
Summary of Contents for Spender DHS3600
- Page 1 Service manual SPENDER DHS3600 SERVICE MANUAL SPENDER MODEL DHS 3600...
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Page 2: Table Of Contents
Service manual SPENDER DHS3600 CONTENTS SPECIFICATION CIRCUIT DESCRIPTION ADJUSTMENT INSTRUMENT LIST ADJUSTMENT PROCEDURES LCD DISPLAY SEMICONDUCTOR IDENTIFICATION 9-12 MAIN PC BOARD (TOP VIEW WITH COMPONENTS) MAIN PC BOARD (TOP VIEW) MAIN PC BOARD (BOTTOM VIEW WITH COMPONENTS) MAIN PC BOARD (BOTTOM VIEW) KEYBOARD PC BOARD (TOP VIEW WITH COMPONENTS) KEYBOARD PC BOARD (TOP VIEW)…... -
Page 3: Specification
Service manual SPENDER DHS3600 SPECIFICATIONS GENERAL FREQUENCY RANGE…………………………………………………… 245.000 245.9875 MHz. CHANNEL STEP………………………………………………………….. 12.5KHz. FREQUENCY GENERAL………………………………………………... SYNTHESIZER (PLL) MODULATION TYPE…………………………………………………….. FM (F3E) DIMENSION……………………………………………………………….. 89(H)×53(W)×30(D) mm WEIGHT (WITH BATTERY)……………………………………………… Approx. 230g RECEIVER SENSITIVITY……………………………………………………………… < 0.20µV at 12dB SINAD SELECTIVITY……………………………………………………………... 60dB SPURIOUS RESPONSE………………………………………………… 60dB DISTORTION…………………………………………………………….. -
Page 4: Circuit Description
Service manual SPENDER DHS3600 CIRCUIT DESCRIPTION 1. FREQUENCY CONFIGURATION The receiver utilizes double conversion. The first IF is 45 MHz and the second IF is 455 kHz. The first local oscillator signal is supplied from the X2 (44.545MHz). 2. RECEIVER SYSTEM... - Page 5 Service manual SPENDER DHS3600 2-6 Receive Signaling 1) CTCSS 300 Hz-and-higher audio frequencies of the signal output from the IF IC are cut by a low-filter (U5). The resulting signal enters the microprocessor (U4). U4 determines whether the CTCSS matches the preset value, and controls the MUTE and the speaker output sounds in line with the squelch results of that content.
- Page 6 Service manual SPENDER DHS3600 4-4 Final Module The VHF power transistor 2SK3476 is used to amplify the transmission power. 4-5 ANT Switch and LPF The signal from the power transistor passes through the D101 SW and LPF and is output from the ANT terminal.
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Page 7: Adjustment Instrument List
Service manual SPENDER DHS3600 ADJUSTMENT INSTRUMENT LIST INSTRUMENT SPECIFICATION VHF Signal Frequency Range: 0.1 ~ 300MHz Generator Output Level: 0.1uV ~ 50mV Digital Voltmeter Measuring Range: 1mV ~ 15V Distortion Meter Measuring Range: 0.1 ~ 20% Frequency Counter Frequency Range: 0.1 ~ 300MHz Accuracy: ±1ppm or Better... -
Page 8: Adjustment Procedures
Service manual SPENDER DHS3600 ADJUSTMENT PROCEDURES VCO SECTION Item Condition Measurement Adjustment Specifications Test Equipment Terminal Parts Method /Remarks 1.Setting 1) Power supply voltage Battery terminal: 7.4V 2.VCO lock 1) CH: TX Lo Digital Voltmeter C319 Adjust to 2.0V Voltage... -
Page 9: Lcd Display
Service manual SPENDER DHS3600 LCD DISPLAY DESCRIPTION SEMICONDUCTOR IDENTIFICATION 2SS268 B561 2SK508 3SK240 2SC3356 2SC3357 2SC1923... - Page 10 Service manual SPENDER DHS3600 SEMICONDUCTOR IDENTIFICATION 24C04 (EEPROM) LM386 HT1621B LCD DRIVER...
- Page 11 Service manual SPENDER DHS3600 SEMICONDUCTOR IDENTIFICATION AK2345...
- Page 12 Service manual SPENDER DHS3600 TA31136 SEMICONDUCTOR IDENTIFICATION HT46R23...
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Page 13: Main Pc Board (Top View With Components)
Service manual SPENDER DHS3600 MAIN PC BOARD (TOP VIEW WITH COMPONENT) -
Page 14: Main Pc Board (Top View)
Service manual SPENDER DHS3600 MAIN PC BOARD (TOP VIEW) -
Page 15: Main Pc Board (Bottom View With Components)
Service manual SPENDER DHS3600 MAIN PC BOARD (BOTTOM VIEW WITH COMPONENTS) -
Page 16: Keyboard Pc Board (Top View With Components)
Service manual SPENDER DHS3600 KEYBOARD PC BOARD (TOP VIEW WITH COMPONENT) -
Page 17: Keyboard Pc Board (Top View)
Service manual SPENDER DHS3600 KEYBOARD PC BOARD (TOP VIEW) -
Page 18: Keyboard Pc Board (Bottom View With Components)
Service manual SPENDER DHS3600 KEYBOARD PC BOARD (BOTTOM VIEW WITH COMPONENTS) -
Page 19: Keyboard Pc Board (Bottom View)
Service manual SPENDER DHS3600 KEYBOARD PC BOARD (BOTTOM VIEW) -
Page 20: Adjustment Points
Service manual SPENDER DHS3600 ADJUSTMENT POINTS... - Page 21 Service manual SPENDER DHS3600 ADJUSTMENT POINTS...
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Page 22: Bill Of Material
Service manual SPENDER DHS3600 BILL OF MATERIAL MAIN PC BOARD (TOP SIDE) PART NUMBER DESCRIPTION SPECIFICATION REF. NO. 1 TA31136FN 2 LM358 U2,U10 3 LM1458 4 2SC458 TRANSISTOR 4 DTC114EE TRANSISTOR Q8, Q12 6 1SS372 TRANSISTOR 7 2SC3295 TRANSISTOR 8 DTA144EE... - Page 23 Service manual SPENDER DHS3600 BILL OF MATERIAL NO. PART NUMBER DESCRIPTION SPECIFICATION REF. NO. CHIP R (0603) 15KΩ CHIP R (0603) 20KΩ R67, R70, R180 CHIP R (0603) 30KΩ CHIP R (0603) 33KΩ R1, R175 CHIP R (0603) 39 KΩ...
- Page 24 Service manual SPENDER DHS3600 BILL OF MATERIAL MAIN PC BOARD (BOTTOM SIDE) PART NUMBER DESCRIPTION SPECIFICATION REF. NO. 69 TA7368F AUDIO IC 70 HT46R23 71 M64082AGP PLL IC 72 HT1621B DRIVE LCD 73 CMX808E3 CTCSS DECODER/ENCODER 74 24C04 IC EEPROM...
- Page 25 Service manual SPENDER DHS3600 BILL OF MATERIAL MAIN PC BOARD (BOTTOM SIDE) PART NUMBER DESCRIPTION SPECIFICATION REF. NO. QUANTITY CHIP TAN (SMD3528) 22µF INDUCTOR (SMD0805) 0.22µH CHIP R (0805) 0Ω CHIP R (0603) 5.6Ω CHIP R (0603) 47Ω CHIP R (0603) 100Ω...
- Page 26 Service manual SPENDER DHS3600 BILL OF MATERIAL KEYBOARD BOARD NO. PART NUMBER DESCRIPTION SPECIFICATION REF. NO. QUANTITY CHIP C (0603) CHIP C (0603) CHIP C (0603) CHIP C (0603) CHIP C (0603) 100P CHIP C (0603) 200P CHIP C (0603)
- Page 27 Service manual SPENDER DHS3600 BILL OF MATERIAL MECHANICAL PART NUMBER DESCRIPTION REF. NO. QUANTITY FRONT PLASTIC CASE BNC CONNECTOR KNOB FOR VOLUME POTENTIOMETER NUT LENS (LCD) DUST FILTER FOR SPEAKER (CLOTH) KEYPAD BUTTON (RUBBER) PTT BUTTON (RUBBER) MIC/SPK CAP REAR ALUMINUM PLATE...
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Page 28: Schematic Diagram
Service manual SPENDER DHS3600 SCHEMATIC DIAGRAM... - Page 29 Service manual SPENDER DHS3600 SCHEMATIC DIAGRAM...
- Page 30 Service manual SPENDER DHS3600 SCHEMATIC DIAGRAM...
- Page 31 Service manual SPENDER DHS3600 SCHEMATIC DIAGRAM...
- Page 32 Service manual SPENDER DHS3600 SCHEMATIC DIAGRAM...
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