Panasonic KX-TG5671BXS, 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 11
4.5. Troubleshooting 15
5 DISASSEMBLY INSTRUCTIONS 18
5.1. Base Unit 18
5.2. Handset 19
6 HOW TO REPLACE THE HANDSET LCD 20
7 TROUBLESHOOTING GUIDE 21
7.1. Check Power 22
7.2. Error Message Table 22
7.3. Check Record 23
7.4. Check Playback 24
7.5. Check Sp-phone Transmission 24
7.6. Check Sp-phone Reception 25
7.7. Check Battery Charge 25
7.8. Check Link 26
7.9. Check the RF part 27
7.10. Check Handset Transmission 33
7.11. Check Handset Reception 33
7.12. Check Caller ID 33
8 ADJUSTMENT AND TEST MODE 34
8.1. Test Mode Flow Chart for Base Unit 34
8.2. Test Mode Flow Chart for Handset 38
8.3. X501 (Base Unit), X201 (Handset) Check 42
8.4. Adjust Battery Low Detector Voltage (Handset) 42
8.5. Base Unit Reference Drawing 43
8.6. Handset Reference Drawing 44
8.7. Frequency Table 45
8.8. How to Clear User Setting 47
9 DESCRIPTION 48
9.1. Frequency 48
9.2. FHSS (Frequency Hopping Spread Spectrum) 48
9.3. Signal Flowchart in the Whole System 50
10 EXPLANATION OF LINK DATA COMMUNICATION 51
10.1. Calling 51
10.2. To Terminate Communication 51
10.3. Ringing 51
11 BLOCK DIAGRAM (BASE UNIT_MAIN) 52
12 CIRCUIT OPERATION (BASE UNIT_MAIN) 53
12.1. DSP (Digital Speech/Signal Processing: IC501) 53
12.2. Flash Memory: IC601 53
12.3. Power Supply Circuit 54
12.4. Reset Circuit 56
12.5. Telephone Line Interface 57
12.6. Auto Disconnect Circuit 58
12.7. Parallel Connection Detect Circuit 59
12.8. Calling Line Identification (Caller ID) 60
13 BLOCK DIAGRAM (BASE UNIT_RF PART) 61
14 BLOCK DIAGRAM (HANDSET_RF PART) 62
15 CIRCUIT OPERATION (RF PART) 63
15.1. Power Supply Circuit 64
15.2. 2.4GHz Mod/Demod Circuit 65
15.3. 5.8GHz Converter Circuit 66
15.4. 5.8GHz PA (Power Amplifier), 5.8GHz LNA (Low Noise
Amplifier) and Antenna Switch Circuit 67
16 BLOCK DIAGRAM (HANDSET) 68
17 CIRCUIT OPERATION (HANDSET) 69
17.1. Construction 69
17.2. Power Supply Circuit 70
17.3. Charge Circuit 71
17.4. Ringer and Handset SP-Phone 71
17.5. Sending Signal 72
17.6. Reception Signal 72
18 SIGNAL ROUTE 73
19 CPU DATA (BASE UNIT) 75
19.1. IC501 75
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-TG5671BXS / KX-TGA560BXS