Panasonic KX-TC2000NZB User Manual
18 BLOCK DIAGRAM (HANDSET)
39
19 CIRCUIT OPERATION
40
19.1. Outline
40
19.2. Power Supply Circuit
41
19.3. Reset Circuit (Base Unit)
42
19.4. Charge Circuit
43
19.5. Telephone Line Interface
43
19.6. DTMF
43
19.7. Transmitter/Receiver
44
19.8. Signal Route
46
20 CIRCUIT OPERATION (HANDSET)
47
20.1. Reset Circuit (Handset)
47
20.2. Battery Low / Power Down Detector
48
21 CPU DATA (Base Unit)
49
21.1. IC2
49
22 CPU DATA (Handset)
50
22.1. IC2
50
23 RF IC (Base Unit and Handset)
51
23.1. IC1
51
24 HOW TO REPLACE FLAT PACKAGE IC
52
24.1. Preparation
52
24.2. Procedure
52
24.3. Modification Procedure of Bridge
52
25 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)
53
26 CABINET AND ELECTRICAL PARTS LOCATION (HANDET) 54
27 ACCESSORIES AND PACKING MATERIALS
55
28 REPLACEMENT PARTS LIST
56
28.1. Base Unit
56
28.2. Handset
58
28.3. ACCESSORIES AND PACKING MATERIALS
60
29 FOR SCHEMATIC DIAGRAM
61
29.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit))
61
29.2. Handset (SCHEMATIC DIAGRAM (Handset))
61
30 SCHEMATIC DIAGRAM (Base Unit)
62
30.1. Base Unit
62
30.2. RF Unit (Base Unit)
63
31 SCHEMATIC DIAGRAM (Handset)
64
31.1. Handset
64
31.2. RF Unit (Handset)
65
31.3. Memo
66
32 CIRCUIT BOARD (Base Unit)
67
32.1. Component View
67
32.2. Flow Solder Side View
68
33 CIRCUIT BOARD (Handset)
69
33.1. Component View
69
33.2. Flow Solder Side View
70
3
KX-TC2000NZB / KX-TC2000N ZW / KX-TC2000NZF