The digital voice signal from the Base Unit is changed to a Analog signal by IC303 and sent to
the speaker.
8.1.4. SENDING VOICE SIGNAL
The Analog input signal from Microphone is changed to a digital signal. And sent to the Base
Unit.
8.1.5. RESET CIRCUIT
The IC304 monitors the battery voltage. It becomes "High" when the battery voltage is over
3.2V. Setting the Power SW (SW300) to ON (H), IC309 outputs "High", IC307(1) / RES becomes
"High", then the reset is released. When the battery voltage is under 3.2V, the reset is released
by putting the unit on the charger.
Содержание KX-TD7895 - Digital Spread Spedtrum Telephone
Страница 3: ...3 2 CONNECTIONS OF HANDSET ...
Страница 4: ...3 3 BASE UNIT ...
Страница 5: ...4 DISASSEMBLY INSTRUCTIONS 4 1 BASE UNIT ...
Страница 6: ...1 Remove the four screws A and remove the Bottom Cabinet ...
Страница 9: ...2 Take the Battery out of the Rear Cabinet after disconnecting the Connector ...
Страница 10: ...3 Remove two Screws D from the Rear Cabinet ...
Страница 12: ...6 Remove the Antenna from the Front Cabinet after removing the Screw E ...
Страница 13: ...7 Remove the RF unit from the Main Board ...
Страница 20: ...34 CHARGE I ON OFF ...
Страница 23: ...6 4 RF UNIT FREQUENCY TABLE ...
Страница 32: ...10 TROUBLESHOOTING GUIDE 10 1 NO VOICE RECEPTION 10 2 NO VOICE TRANSMISSION ...
Страница 33: ...10 3 NO LINK BASE UNIT ...
Страница 39: ...12 CABINET AND ELECTRICAL PARTS LOCATION 12 1 BASE UNIT ...
Страница 40: ...12 2 HANDSET ...
Страница 41: ...12 3 CHARGER ...
Страница 42: ...13 ACCESSORIES AND PACKING MATERIALS ...
Страница 46: ... CAPACITORS ...
Страница 63: ......
Страница 64: ......