List 2 Material List(Electronic Section 136-174MHz) ..................37 List 3 Material List (structure material) ........................47 Figure 1 TP660 Main Board Top Side PCB View (400-470MHz) ................50 Figure 2 TP660 Main Board Bottom Side PCB View (400-470MHz) ..............50 Figure 3 TP660 Main Board Top Side PCB View (136-174MHz) ................
1. Overview 1.1. Scope This manual applies to the service and maintenance of TP660 digital portable radios, and it is intended for use only by engineers and professional technicians trained by Kirisun. Data changes in this manual may occur with the improvement of technology. To get the latest technology information, please contact us or your local dealer.
TP660 Service Manual 2. Introduction 2.1. External Views and Functional Keys Part Name Part Name LED Indicator Programmable Button (SK2) Antenna Return Key Channel Selector Knob Up Key/Menu Emergency Button Down Key On/Off/ Volume Control Knob Confirm Key Programmable Button (SK1)
TP660 Service Manual detected. • The LED glows orange: The radio is scanning. 3. Circuit Description 3.1. Tx/Rx Signal Procedure Figure 3-1 RF Principle of Receiver U103 U201 Q504 2SC3356 Q503 2SC3356 Q502 RD01 Q501 RD07 NJM2100 HR_C5000 TX/RX Buffer...
TP660 Service Manual level pre-drive amplifier (Q504) for preliminary amplification, and generate a certain level isolation from the next level amplifier; the amplified signal will then enter the next level pre- drive amplifier (Q503 and drive amplifier (Q502 RD01)) for further power amplification so as to ensure that enough drive power signal can be offered to the end-level power amplifier (Q501 RD07) for final power amplification.
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TP660 Service Manual circuit. • Rx Circuit RF Part The high frequency signal from low-pass filter passes the front stage electrically tunable band-pass filter controlled by electric level and output by DAC (U301 PIN29 ) so as to filter out the out-of-band interference signal, sending effective band-pass signal into the low noise amplifier (Q505).
TP660 Service Manual 3.1.3. Frequency Synthesizer Circuit Figure 3-4 Frequency Synthesizer Circuit Diagram MOD_I TX VCO U601 Loop DATA 2SK72310 Filter RX VCO 16.8MHz TCXO X601 MOD_Q Frequency synthesizer circuit is composed of VCO and PLL, and it is the kernel module of the whole TRx system.
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TP660 Service Manual RF PA AF PA Q401 U404 SAVE U403 SW401 U402 Q402 3.3V Battery U401 DC-DC U301 STM32F This radio applies 7.4V,2000mAh lithium battery, RF power amplification (Q501, Q502), AF power amplification (IC101) , and direct battery power supply.
• Steps for parameter settings are as below: Step 1. Confirm that the right version of TP660 user programmable software is installed on the computer. Step 2. Confirm that the right version of TP660 USB driver software is installed on the computer.
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TP660 Service Manual Step 5. Operate TP660 user programming software. • Steps for installing TP660 user programmable software are as below: Step 1. Double click the installation file, and the interface in Figure 4-1 pops up. Figure 4-1 Step 2. Click “Next” to enter the next interface for selecting software installation path.
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TP660 Service Manual Step 3. As shown in figure 4-2, the user can click “Browse” to select the software installation path or the default installation path. Click “Next” to enter the installation confirmation interface. Figure 4--3 Step 4. Click “Next” to enter the installation completion interface.
Step 6. After the installation, double click TP660 user programmable software. See figure 4-6. Figure 4-6 The user can read the current parameter settings from the radio through TP660 user programmable software, and the parameter can also be reset. Note: 1.
TP660 Service Manual 5.1. Attaching and Detaching the Battery Attaching the battery Press the belt clip and push the battery pack forwards in the arrow direction until a click is heard, which indicates that the battery pack is properly fixed. (see figure 5-1)
TP660 Service Manual (see figure 5-3) Figure 5-3 5.3. Attaching the Belt Clip Step 1. Press the belt clip and align the two screw holes with those on the back aluminum shell. (See figure 5-4) Step 2. Fasten the two screws.
TP660 Service Manual Step 2. Remove the knob and snap ring. Step 3. Remove the two knob nut and antenna nut. Step 4. Remove the four screws as shown in the figure below. Step 5. Insert a flat screw driver into the seal groove of the aluminum bracket, and push it upwards to remove the zinc cover;...
TP660 Service Manual 5.6. Separating the Keyboard from the Front Cover Remove the four front cover screws to separate the keyboard from the front cover.(see figure 5-8) Figure 5-8 After the detachment above, the maintenance and adjustment can be done accordingly.
TP660 Service Manual 6.2. Adjustment Test Method 6.2.1. Frequency Description Model TP660(400-470) Intermediate/low Intermediate Intermediate/high high Channel frequency frequency frequency frequency frequency Tx frequency 400.025 417.025 435.025 452.025 469.975 (MHz) Rx frequency 400.25 417.25 435.25 452.25 469.95 (MHz) Model TP660(134-176)
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TP660 Service Manual 1. Enter computer adjustment mode. UHF:3.8-4.5W 2. Enter adjustment mode “Tx high power” current: less than 3. Adjust PC software value, observe integrated tester 1.8A Tx high power frequency value.. VHF: 4.5-5.2W 4. Adjust to the nominal test power.
TP660 Service Manual 1. Enter computer adjustment mode.. 2. Enter the adjustment mode “DCS frequency deviation”, DCS frequency 3. Adjust PC software value and observe integrated deviation and tester frequency deviation value. 350±150Hz wave 4. Adjust to nominal frequency deviation: 350±50Hz.
TP660 Service Manual 1. Enter the computer modulation mode. 2. Set the channel as current test frequency. Squelch 3. Enter the modulation mode ”SQL9 on”, click start and switch to level9 on the next frequency when the number is stable.
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TP660 Service Manual Measurement 113mm*54mm*34mm (H*W*T) Battery Capacity 7.4V 2000mAH lithium-ion battery Working hour analog:13.5 hours (5-5-90) digital:15 hours Environment Specification ℃~ +60℃ Working Temperature ℃~ +85℃ Storage Temperature Waterproof and IP67 Dust-proof IEC 61000-4-2 Statics Prevention ±4kV±8kV (air) American Military Standard...
TP660 Service Manual Frequency Counter Frequency Stability ±0.2ppm or lower Ammeter Frequency Range 50Hz-10kHz Audio Voltmeter Voltage Range 1mV-10V Frequency Range 50Hz-5kHz or higher Audio Signal Generator Output 0 V-1V capacity 3% or lower at 1kHz Distortion Tester Input Electric Level...
R M3*4 earphone cover screw, SUS303、#4-40、 vacuum-plated IP ,black、pb-free PT7800 ear mic cover plate(cover die) PC+ABS, 7MHP-7069-05B-W0 black, 2008B,1405,pb-free Figure 1 TP660 Main Board Top Side PCB View (400-470MHz) Figure 2 TP660 Main Board Bottom Side PCB View (400-470MHz) Page 50 of 65...
TP660 Service Manual Figure 3 TP660 Main Board Top Side PCB View (136-174MHz) Figure 4 TP660 Main Board Bottom Side PCB View (136-174MHz) Page 51 of 65...
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