Panasonic KX-TG5571BXM, 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 5
3 CAUTION 5
4 OPERATING INSTRUCTIONS 6
4.1. Battery 6
4.2. Location of Controls 8
4.3. Displays 10
4.4. Settings 13
4.5. Troubleshooting 20
5 DISASSEMBLY INSTRUCTIONS 25
5.1. Base Unit 25
5.2. Handset 26
5.3. Charger Unit 27
6 ASSEMBLY INSTRUCTIONS 28
6.1. Fix the LCD and the Receiver Guide to the Main P.C.
Board (Handset) 28
7 TROUBLESHOOTING GUIDE 29
7.1. Check Power 30
7.2. Error Message Table 30
7.3. Check Record 31
7.4. Check Playback 32
7.5. Check Sp-phone Transmission 32
7.6. Check Sp-phone Reception 33
7.7. Check Battery Charge 33
7.8. Check Link 34
7.9. Check the RF part 35
7.10. Check Handset Transmission 42
7.11. Check Handset Reception 42
7.12. Check Caller ID 42
8 ADJUSTMENT AND TEST MODE 43
8.1. Test Mode Flow Chart for Base Unit 43
8.2. Test Mode Flow Chart for Handset 47
8.3. X501 (Base Unit), X201 (Handset) Check 51
8.4. Adjust Battery Low Detector Voltage (Handset) 51
8.5. Base Unit Reference Drawing 52
8.6. Handset Reference Drawing 53
8.7. Frequency Table 54
8.8. How to Clear User Setting 56
9 DESCRIPTION 57
9.1. Frequency 57
9.2. FHSS (Frequency Hopping Spread Spectrum) 57
9.3. Signal Flowchart in the Whole System 59
10 EXPLANATION OF LINK DATA COMMUNICATION 60
10.1. Calling 60
10.2. To Terminate Communication 60
10.3. Ringing 60
11 BLOCK DIAGRAM (BASE UNIT_MAIN) 61
12 CIRCUIT OPERATION (BASE UNIT_MAIN) 62
12.1. DSP (Digital Speech/Signal Processing: IC501) 62
12.2. Flash Memory (IC601) 62
12.3. Power Supply Circuit 63
12.4. Reset Circuit 65
12.5. Intercom Mode 66
12.6. Telephone Line Interface 66
12.7. Auto Disconnect Circuit 67
12.8. Parallel Connection Detect Circuit 68
12.9. Calling Line Identification (Caller ID) 69
13 BLOCK DIAGRAM (BASE UNIT_RF PART) 70
14 BLOCK DIAGRAM (HANDSET_RF PART) 71
15 CIRCUIT OPERATION (RF PART) 72
15.1. Power Supply Circuit 73
15.2. 2.4GHz Mod/Demod Circuit 74
15.3. 5.8GHz Converter Circuit 75
15.4. 5.8GHz LNA (Low Noise Amplifier) Circuit 76
15.5. 5.8GHz Power Amplifier and Antenna Switch Circuit 77
16 BLOCK DIAGRAM (HANDSET) 78
17 CIRCUIT OPERATION (HANDSET) 79
17.1. Construction 79
17.2. Power Supply Circuit 80
17.3. Charge Circuit 81
Note:
Because CONTENTS 4 is the extract from the Operating Instructions of this model, it is subject to change without notice. You can
download and refer to the original Operating Instructions on TSN Server for further information.
CONTENTS
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KX-TG5571BXM / KX-TGA550BXM