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20.2. TELEPHONE MODE OPERATION
33
20.3. TRANSMITTER CIRCUIT
34
20.4. TRANSMITTER SIGNAL CIRCUIT
34
20.5. Receiver RF IF Circuit
35
20.6. RECEIVER SIGNAL CIRCUIT
36
20.7. INITIALIZATION CIRCUIT
37
20.8. CHARGE CIRCUIT
38
20.9. CPU OPERATION
39
21 BLOCK DIAGRAM (PORTABLE UNIT)
41
22 CIRCUIT OPERATION (PORTABLE UNIT)
42
22.1. RECEIVER RF IF CIRCUIT
42
22.2. RECEIVER SIGNAL CIRCUIT
43
22.3. TRANSMITTER CIRCUIT
44
22.4. TRANSMITTER SIGNAL CIRCUIT
45
22.5. RECEIVER DATA CIRCUIT
46
22.6. BATTERY LOW DETECTOR CIRCUIT
46
22.7. RESET CIRCUIT POWER ON/OFF CIRCUIT
47
23 TROUBLESHOOTING GUIDE
48
23.1. Main Routine
48
23.2. Check Power
49
23.3. Check Battery Charge
50
23.4. Check Voice Recepton
51
23.5. Check Voice Transmission
52
23.6. Check Link
53
23.7. Bell Reception
55
23.8. Initial Set-up after Replacing EEPROM
55
24 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)
56
25 CABINET AND ELECTRICAL PARTS LOCATION (PORTABLE
UNIT)
57
26 ACCESSORIES AND PACKING MATERIALS
58
27 REPLACEMENT PARTS LIST
59
27.1. Base Unit
59
27.2. Portable Unit
62
27.3. ACCESSORIES AND PACKING MATERIALS
64
28 FOR SCHEMATIC DIAGRAM
65
28.1. BASE UNIT ()
65
28.2. PORTABLE UNIT ()
65
29 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM (RF
UNIT, BASE)
66
29.1. Component View
66
29.2. Flow Solder Side View (Base)
67
29.3. How to rotate coils and variable resistor for adjustment 68
30 SCHEMATIC DIAGRAM (RF UNIT, BASE)
69
31 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM
(BASE UNIT)
71
31.1. Component View
71
31.2. Flow Solder Side View
72
32 SCHEMATIC DIAGRAM (BASE UNIT)
73
33 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM
(PORTABLE UNIT)
75
33.1. Component View
75
33.2. Flow Solder Side View
76
34 SCHEMATIC DIAGRAM (PORTABLE UNIT)
77
34.1. Main P.C. Board
77
34.2. RF Board (PORTABLE UNIT)
78
3
KX-TC1019RUB
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