Panasonic KX-TG2257BXS Service Manual page 3

11.8. Frequency Table
12 DESCRIPTION
12.1. Frequency
12.2. Time Division Duplex (TDD) operation
12.3. Signal Flowchart in the Whole System
13 EXPLANATION OF BBIC (Base Band IC) DATA
COMMUNICATION
13.1. Calling
13.2. To Terminate Communication
13.3. Ringing
13.4. Ports for Transmitting and Receiving of Data
14 BLOCK DIAGRAM (Base Unit)
15 CIRCUIT OPERATION (Base Unit)
15.1. DSP (Digital Speech/Signal Processing: IC201)
15.2. Flash Memory (IC300)
15.3. Power Supply Circuit
15.4. Reset Circuit
15.5. Locator/Intercom Mode
15.6. Telephone Line Interface
15.7. Auto Disconnect Circuit
15.8. Parallel Connection Detect Circuit
15.9. Signal Route
15.10. Calling Line Identification (Caller ID)/Call Waiting Caller ID
16 BLOCK DIAGRAM (Handset)
17 CIRCUIT OPERATION (Handset)
17.1. Construction
17.2. Power Supply Circuit
17.3. Charge Circuit
17.4. Ringer and Handset SP-Phone
17.5. Sending Signal
17.6. Reception Signal
18 CPU DATA (Base Unit)
18.1. IC201
48 19 CPU DATA (Handset)
49 19.1. IC201
49 20 EXPLANATION OF RF UNIT TERMINALS
49 20.1. IC101
50 21 HOW TO REPLACE A FLAT PACKAGE IC
21.1. Preparation
51 21.2. Procedure
51 21.3. Removing Solder from Between Pins
51 22 CABINET AND ELECTRICAL PARTS (Base Unit)
51 23 CABINET AND ELECTRICAL PARTS (Handset)
51 24 ACCESSORIES AND PACKING MATERIALS
52 25 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES
53
53 25.1. Base Unit
53 25.2. Handset
54 26 REPLACEMENT PARTS LIST
55 26.1. Base Unit
56 26.2. Handset
56 27 FOR SCHEMATIC DIAGRAM
57 27.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit))
57 27.2. Handset (SCHEMATIC DIAGRAM (Handset))
58 27.3. Memo
28 SCHEMATIC DIAGRAM (Base Unit)
59 29 SCHEMATIC DIAGRAM (Handset)
61 30 SCHEMATIC DIAGRAM (RF Unit)
62 31 CIRCUIT BOARD (RF Unit)
62 31.1. MEMO
62 32 CIRCUIT BOARD (Base Unit)
63 32.1. Component View
63 32.2. Flow Solder Side View
63 33 CIRCUIT BOARD (Handset)
64 33.1. Component View
65 33.2. Flow Solder Side View
65
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