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Manual found fast and good quality, very helpfull service
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8-17-12 Been using the sight for about 6 months. Fast Downloads and top quality
Manuels !
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Everything was great, the manual, the response time, the simplicity of the order, and the
Price. The only thing that I could possible say on a negative note would be that the manual I ordered was more for a service tech. There were a lot of schematic diagrams that didn't help me solve the problem. However I would order again and recommend the web sight to others.
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I'd been looking for this manual for awhile. Exactly what I needed - and at an excellant price. Thanks!
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very complete. acceptable resolution. details are a little unclear. is a manual note 8.
4) DTMF Encoder Circuit (option) The DTMF signal corresponding to the combination of the column and row is output from tone output pin17 of IC401 Encoder, producing a frequencymodulated RF output. The Q401 switches the DTMF Encoder when lC401 is active during DTMF transmission.
5) Tone Squelch Circuit (option) 1.Decoder The second IF signalfrom pin11 of IC1, and input to the tone squelch decoder lC701. When the tone squelch decoder IC701 decodes the input tone signal frequency as the programmed frequency, pin13 goes to "Low". The signal is input to pin16(DET) of lC107, and the squelch goes off. When the Tone squelch decoder IC701 does not decode the input tone signal frequency as the programmed frequency, pin13 goes to "High". 2. Encoder The tone signal is output from pin16 of IC701, producing a frequencymodulated RF output. 6) Microprocessor (CPU) and Peripheral Circuit Refer to "Terminal Function of Microprocessor" about each terminal function. 1, BS Mode When the Squelch is closed for more than 5 seconds, the radio goes into the BS(Battery Save) mode automatically. Pin11 (R5C) and pin19 become High or Low periodically. Open the Squelch, and the radio does not go into the BS mode.
2. Backup Reset When the voltage detector circuit lC303 detects a decrease in the C5V line, CPU RAM data is stored in the EEPROM IC, IC601. IC 302 is also the voltage detector circuit and it detects the lower voltage than IC303. The circuit detects a increase in the C5V line when power is turned on, and then the CPU will be initialized. 3. Reset Press and holdthe."F" key, then turn on the power. The radio will reset to initial factory settings. Even if you expanded the frequency, it will return to the initial setting. To resume the expanded frequency, press and hold the "F" and "Lamp" keys, then turn on the power. Page 6
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