Panasonic KX-TG2260BXS, Service Manual

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1 ABOUT LEAD FREE SOLDER (PbF: Pb free) 4
1.1. Suggested PbF Solder 4
1.2. How to recognize that Pb Free solder is used 5
2 FOR SERVICE TECHNICIANS 6
3 CAUTION 6
4 BATTERY 7
4.1. Installing the Battery in the Handset 7
4.2. Battery Charge 7
4.3. Battery Recharge 7
4.4. Battery Strength 7
4.5. Battery Replacement 8
4.6. Battery information 8
5 LOCATION OF CONTROLS 9
5.1. Base Unit 9
5.2. Handset 10
6 DISPLAY 11
6.1. Troubleshooting 11
7 SETTINGS 15
7.1. Connections 15
7.2. Dialing Mode (Handset) 15
7.3. Line Mode (Handset) 16
7.4. Direct Commands 17
8 OPERATIONS 18
8.1. Making Calls 18
8.2. Answering Calls 21
8.3. FLASH Button 22
8.4. Dial Lock (Handset) 23
8.5. Erasing Messages 24
8.6. Phone Book (Handset) 25
9 DISASSEMBLY INSTRUCTIONS 29
10 ASSEMBLY INSTRUCTIONS 31
10.1. Fix the LCD to P.C. Board (Handset) 31
11 TROUBLESHOOTING GUIDE 32
11.1. Check Power 33
11.2. Error Message Table (Base Unit) 33
11.3. Check Record 34
11.4. Check Playback 35
11.5. Check Sp-phone Transmission 35
11.6. Check Sp-phone Reception 36
11.7. Check Battery Charge 37
11.8. Check Link 37
11.9. Check the RF Unit 38
11.10. Check Handset Transmission 43
11.11. Check Handset Reception 43
11.12. Check Caller ID 43
12 TEST MODE 44
12.1. Test mode flow chart for Base Unit 44
12.2. TAM Test mode flow chart 45
12.3. Test mode flow chart for Handset 46
12.4. X201 Check 47
12.5. Adjustment Battery Low Detector Voltage 47
12.6. Base Unit Reference Drawing 48
12.7. Handset Reference Drawing 49
12.8. Frequency Table 50
13 DESCRIPTION 51
13.1. Frequency 51
13.2. Time Division Duplex (TDD) operation 51
13.3. Signal Flowchart in the Whole System 52
14 EXPLANATION OF BBIC (Base Band IC) DATA
COMMUNICATION 53
14.1. Calling 53
14.2. To Terminate Communication 53
14.3. Ringing 53
14.4. Ports for Transmitting and Receiving of Data 53
15 BLOCK DIAGRAM (BASE UNIT) 54
16 CIRCUIT OPERATION (BASE UNIT) 55
16.1. DSP (Digital Speech/Signal Processing: IC201) 55
16.2. Flash Memory (IC300) 55
16.3. Power Supply Circuit 56
16.4. Reset Circuit 57
16.5. Locator/Intercom Mode 58
16.6. Telephone Line Interface 58
16.7. Auto Disconnect Circuit 59
16.8. Parallel Connection Detect Circuit 59
16.9. Calling Line Identification (Caller ID) 60
17 BLOCK DIAGRAM (HANDSET) 61
18 CIRCUIT OPERATION (HANDSET) 62
18.1. Construction 62
18.2. Power Supply Circuit 62
18.3. Reset Circuit 63
18.4. Charge Circuit 64
18.5. Ringer and Handset SP-Phone 64
18.6. Sending Signal 64
18.7. Reception Signal 65
CONTENTS
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KX-TG2260BXS / KX-TGA228BXS