telephone line. Via the following path:
RF unit
IC106(24)
IC106(11)
C153
R193
C162
Q115
C159
R202
C110
Q103
R106
C187
Q108
Q100
D101
T/R
7.1.6. DTMF SIGNAL
When the DTMF data from the portable unit is received, the DTMF signal is output from the
IC105(23) and sent to the line.
7.1.7. LINK MODE AND HOOK
Normally the line mute is controlled by LPR(IC105). When wearing the headset, it is controlled
by CPU(IC107) in the auto answer mode only. Also the Hook is controlled by CPU(IC107) in the
auto answer mode only.
Line Mute Control
STANDBY
TALK
[Normal]
IC105(42)
H
L
IC107(45)
H
H
[Auto
Answer]
IC105(42)
H
H
IC107(45)
H
L
IC112(4) (AND)
H : Line Mute
Hook Control
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: ......