Panasonic KX-TG5631S, Service Manual, Page: 2 / 124

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 OPERATING INSTRUCTIONS 7
4.1. Battery 7
4.2. Location of Controls 9
4.3. Displays 11
4.4. Settings 13
4.5. Troubleshooting 18
5 DISASSEMBLY INSTRUCTIONS 21
5.1. Base Unit 21
5.2. Handset 22
5.3. Charger Unit 23
6 HOW TO REPLACE THE HANDSET LCD 24
7 TROUBLESHOOTING GUIDE 25
7.1. Check Power 26
7.2. Error Message Table 26
7.3. Check Record 27
7.4. Check Playback 28
7.5. Check Battery Charge 28
7.6. Check Link 29
7.7. Check the RF part 30
7.8. Check Handset Transmission 37
7.9. Check Handset Reception 37
7.10. Check Caller ID 37
8 ADJUSTMENT AND TEST MODE 38
8.1. Test Mode Flow Chart for Base Unit 38
8.2. Test Mode Flow Chart for Handset 42
8.3. X501 (Base Unit), X201 (Handset) Check 46
8.4. Adjust Battery Low Detector Voltage (Handset) 46
8.5. Base Unit Reference Drawing 47
8.6. Handset Reference Drawing 48
8.7. Frequency Table 49
8.8. How to Clear User Setting 51
9 DESCRIPTION 52
9.1. Frequency 52
9.2. FHSS (Frequency Hopping Spread Spectrum) 52
9.3. Signal Flowchart in the Whole System 54
10 EXPLANATION OF LINK DATA COMMUNICATION 55
10.1. Calling 55
10.2. To Terminate Communication 55
10.3. Ringing 55
11 BLOCK DIAGRAM (BASE UNIT_MAIN) 56
12 CIRCUIT OPERATION (BASE UNIT_MAIN) 57
12.1. DSP (Digital Speech/Signal Processing: IC501) 57
12.2. Flash Memory (IC601) 57
12.3. Power Supply Circuit 58
12.4. Reset Circuit 60
12.5. Telephone Line Interface 61
12.6. Auto Disconnect Circuit 62
12.7. Parallel Connection Detect Circuit 63
12.8. Calling Line Identification (Caller ID)/Call Waiting Caller ID
64
13 BLOCK DIAGRAM (BASE UNIT_RF PART) 66
14 BLOCK DIAGRAM (HANDSET_RF PART) 67
15 CIRCUIT OPERATION (RF PART) 68
15.1. Power Supply Circuit 69
15.2. 2.4GHz Mod/Demod Circuit 70
15.3. 5.8GHz Converter Circuit 71
15.4. 5.8GHz PA (Power Amplifier), 5.8GHz LNA (Low Noise
Amplifier) and Antenna Switch Circuit 72
16 BLOCK DIAGRAM (HANDSET) 73
17 CIRCUIT OPERATION (HANDSET) 74
17.1. Construction 74
17.2. Power Supply Circuit 75
17.3. Charge Circuit 76
17.4. Ringer and Handset SP-Phone 76
17.5. Sending Signal 77
17.6. Reception Signal 77
18 CIRCUIT OPERATION (CHARGER UNIT) 78
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-TG5631S / KX-TG5632M / KX-TG5633B / KX-TGA560S / KX-TGA560M / KX-TGA560B