Battery voltage: V(Batt) < 2.3V
The BBIC detects this level and "
" starts flashing and "battery
alarm" starts ringing.
- Power Down
Battery voltage: V(Batt) < 2.2V
The BBIC detects this level and power down.
Note:
Refer to
ADJUSTMENTS (HANDSET)
().
22.5. BUZZER CIRCUIT
A square-wave signal from IC1 pin70 is used to sound the buzzer via switching transistor Q4. Various
tones and cadences are used dependent on function. Buzzer volume is varied by changing the duty
cycle of the drive waveform. D8 provides quenching og back-emf generated when Q4 turns off.
23. CIRCUIT OPERATION (CHARGER UNIT)
23.1. Power Supply Circuit
The power supply is as shown.
24. SIGNAL ROUTE
54
Содержание KX-TCD410ALM
Страница 21: ... To exit the operation press any time 21 ...
Страница 24: ...Shown in Fig To Remove Remove 1 Lower Cabinet Screws 2 6 12 A 2 2 Main P C Board Main P C Board 9 2 Handset 24 ...
Страница 48: ...18 FREQUENCY TABLE MHz 48 ...
Страница 55: ...25 CPU DATA BASE UNIT 25 1 IC2 BBIC 55 ...
Страница 71: ...71 ...
Страница 72: ...31 CABINET AND ELECTRICAL PARTS LOCATION HANDSET 32 CABINET AND ELECTRICAL PARTS LOCATION CHARGER UNIT 72 ...
Страница 73: ...73 ...
Страница 74: ...33 ACCESSORIES AND PACKING MATERIALS 33 1 KX TCD410ALM ALS 33 2 KX TCD412ALM ALS 74 ...
Страница 75: ...33 3 KX A142ALM ALS 75 ...
Страница 76: ...34 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 34 1 Base Unit 76 ...
Страница 104: ...Clip Base PCB G N D S D A S C L 2 7V MODE SDA SCLK GND J104 J103 J102 J101 J100 ...
Страница 105: ...1 PROG PBF BOOK UP POWER CAN DOWN RIGHT REDIAL LEFT 1 2 3 6 5 7 0 R 4 9 8 INT MIC TALK 36 CN2 Marked ...
Страница 106: ...PbF IC1 IC2 80 30 50 5 8 4 1 1 11 18 1 IC3 Marked ...
Страница 108: ...4 1 5 8 PbF 1 28 18 IC3 IC2 IC1 11 64 1 16 17 32 49 48 33 Marked ...