Panasonic KX-TCD420GS Manual de usuario

ORDER NO. KM40306116C2

Telephone Equipment

KX-TCD420GS / KX-A142EXS

Digital Cordless Answering System

Silver Version

(for Germany)

SPECIFICATIONS

Telephone Equipment 1

1. ABOUT LEAD FREE SOLDER (PbF: Pb free) 2

1.1. Suggested PbF Solder 3

1.2. How to recognize that Pb Free solder is used 3

1.2.1. Base Unit PCB 3

1.2.2. Handset PCB 4

1.2.3. Charger Unit PCB 4

2. FOR SERVICE TECHNICIANS 4

3. CAUTION 4

4. BATTERY 4

4.1. Battery Installation 4

4.2. Battery Charge 5

4.3. Battery Life 5

4.4. Replacing the Batteries 6

5. LOCATION OF CONTROLS 6

5.1. Base Unit 7

5.2. Handset 7

6. SETTINGS 7

6.1. Connection 7

6.1.1. Base Unit 7

6.1.2. Charger Unit 8

6.2. Symbols Used in This Service Manual 8

6.3. PIN Code 9

6.3.1. Base Unit 9

6.3.2. Handset 9

6.3.3. Reset Base Unit PIN to Default (0000) -When There is NO Handset Registered- 10

6.3.3.1. Symptom 10

6.3.3.2. Thinkable Situation 10

6.3.3.3. Remedy 10

6.4. Reset 11

6.4.1. Base Unit 11

6.4.2. Handset 12

6.5. Key Lock 13

6.6. Recall Feature 13

6.7. Dialling Pause for PBX line/long distance service users 14

6.8. Call Restriction 14

6.9. Cancelling Call Restricted Handset(s) 15

6.10. Call BAR On/Off (Call Prohibition On/Off) 15

6.11. Selecting the Display Language 16

6.12. Select Flash/Earth Mode 16

6.13. Automatic Route Selection 17

6.13.1. Storing the Carrier Code(s) 17

6.13.2. Storing the Area Code(s) 18

6.13.3. Relate the Area Code(s) to the Carrier Code(s) 18

6.13.4. Automatic Route Selection On/Off 19

6.14. Summary of Programmable Functions 19

7. DISPLAY 20

7.1. Handset Display 20

7.2. Before Requesting Help (Troubleshooting) 20

8. OPERATIONS 22

8.1. Power On/Off 22

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8.2. Making a Call 22

8.3. Answering a Call 22

8.4. Setting the Clock/Date 23

8.5. Phonebook 23

8.5.1. Storing a Caller Information 23

8.5.2. Storing the Phone Number into the Phonebook When Pre-dialling 25

8.5.3. Storing the Number from the Redial/Caller List into the Phonebook 26

8.5.4. Hot Key (: Speed Dial) 26

9. DISASSEMBLY INSTRUCTIONS 27

9.1. Base Unit 27

9.2. Handset 28

9.3. Charger Unit 29

10. ASSEMBLY INSTRUCTIONS 30

10.1. Warning When Constructing the Base Unit 30

11. TROUBLESHOOTING GUIDE 30

11.1. Check Power 31

11.1.1. Base Unit 31

11.1.2. Handset 32

11.2. Check Battery Charge 32

11.2.1. Base Unit 32

11.2.2. Handset 33

11.2.3. Charger Unit 33

11.3. Check Link 33

11.3.1. Base Unit 33

11.3.2. Handset 34

11.4. Check Handset Transmission 35

11.5. Check Handset Reception 35

11.6. Check Caller ID 35

11.7. TAM Voice Prompt Problems 35

11.8. Bell Reception 36

11.8.1. Base Unit 36

11.8.2. Handset 36

12. CHECK PROCEDURE (BASE UNIT) 37

12.1. Preparation 37

12.1.1. Equipment Required 37

12.1.2. JIGs and PC 37

12.2. PC Setting 37

12.2.1. Connections 37

12.2.2. PC Setting 37

12.3. TAM Voice Prompt Download 38

13. CHECK PROCEDURE (HANDSET) 38

13.1. Preparation 38

13.1.1. Equipment Required 38

13.1.2. JIGs and PC 39

13.2. PC Setting 39

13.2.1. Connections 39

13.2.2. PC Setting 39

14. ADJUSTMENTS (BASE UNIT AND CHARGER UNIT) 40

14.1. Adjustment (Base Unit) 40

14.2. Adjustment Standard (Base Unit) 47

14.2.1. Component View 47

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14.2.2. Flow Solder Side View 48

14.3. Adjustment (Charger Unit) 48

14.4. Adjustment Standard (Charger Unit) 48

14.4.1. Flow Solder Side View 48

15. ADJUSTMENTS (HANDSET) 48

15.1. Adjustment 49

15.2. Adjustment Standard (Handset) 54

16. RF SPECIFICATION 54

16.1. Base Unit 54

16.2. Handset 54

17. HOW TO CHECK THE HANDSET SPEAKER 54

18. FREQUENCY TABLE (MHz) 56

19. BLOCK DIAGRAM (BASE UNIT) 57

20. CIRCUIT OPERATION (BASE UNIT) 57

20.1. Outline 57

20.2. Power Supply Circuit 58

20.3. Telephone Line Interface 59

20.4. Transmitter/Receiver 60

20.4.1. Transmitter Block 60

20.4.2. Receiver Block 60

21. BLOCK DIAGRAM (HANDSET) 60

22. CIRCUIT OPERATION (HANDSET) 60

22.1. Outline 60

22.2. Power Supply Circuit/Reset Circuit 61

22.3. Charge Circuit 61

22.4. Battery Low/Power Down Detector 61

23. CIRCUIT OPERATION (CHARGER UNIT) 62

23.1. Power Supply Circuit 62

24. SIGNAL ROUTE 62

25. CPU DATA (BASE UNIT) 63

25.1. IC8 (BBIC) 63

26. CPU DATA (HANDSET) 68

26.1. IC1 (BBIC) 69

27. EEPROM LAYOUT (BASE UNIT) 71

27.1. Scope 71

27.2. Introduction 71

27.3. EEPROM Layout 72

27.3.1. General Setup 72

27.3.2. Switch Control 72

27.3.3. Flash Time setting 73

27.3.4. Clip (Caller ID) configuration 73

27.3.5. TADTASK 74

27.3.6. BsUiTask settings 77

28. EEPROM LAYOUT (HANDSET) 77

28.1. Scope 77

28.2. Introduction 78

28.3. EEPROM contents 78

28.3.1. General Setup 78

28.3.2. Signal detection (for factory use only) 78

28.3.3. Battery Parameters 80

28.3.4. Default Audio-Parameters 80

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III

28.3.5. VolumeSetting Second Block 81

29. HOW TO REPLACE FLAT PACKAGE IC 81

29.1. Preparation 81

29.2. Procedure 82

29.3. Modification Procedure of Bridge 82

30. CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT) 83

31. CABINET AND ELECTRICAL PARTS LOCATION (HANDSET) 84

32. CABINET AND ELECTRICAL PARTS LOCATION (CHARGER UNIT) 85

33. ACCESSORIES AND PACKING MATERIALS 86

33.1. KX-TCD420GS 87

33.2. KX-A142EXS 87

34. TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES 88

34.1. Base Unit 88

34.2. Handset 89

34.3. Charger Unit 89

35. REPLACEMENT PARTS LIST 89

35.1. Base Unit 90

35.1.1. Cabinet and Electrical Parts 90

35.1.2. Main P.C.Board Parts 91

35.2. Handset 95

35.2.1. Cabinet and Electrical Parts 95

35.2.2. Main P.C.Board Parts 96

35.3. Charger Unit 97

35.3.1. Cabinet and Electrical Parts 97

35.3.2. Main P.C.Board Parts 98

35.4. Accessories and Packing Materials 98

35.4.1. KX-TC420GS 98

35.4.2. KX-A142EXS 98

35.5. Fixtures and Tools 98

35.6. Memo 99

36. SCHEMATIC DIAGRAM (BASE UNIT) 99

37. SCHEMATIC DIAGRAM (HANDSET) 99

38. SCHEMATIC DIAGRAM (CHARGER UNIT) 99

39. CIRCUIT BOARD (BASE UNIT) 99

39.1. Component View 99

39.2. Flow Solder Side View 99

40. CIRCUIT BOARD (HANDSET) 99

40.1. Component View 99

40.2. Flow Solder Side View 99

41. CIRCUIT BOARD (CHARGER UNIT) 99

41.1. Component View 99

41.2. Flow Solder Side View 99

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Unauthorized copying and distribution is a violation of law.

1. ABOUT LEAD FREE SOLDER (PbF: Pb free)

Note:

In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to

standard solder or solder that contains lead.

We will use PbF solder when discussing the lead free solder used in our manufacturing process

which is made from Tin (Sn), Silver (Ag), and Copper (Cu).

This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB.

For service and repair work we suggest using the same type of solder although, with some

precautions, standard Pb solder can also be used.

Caution

- PbF solder has a melting point that is 50°F ~70°F (30°C ~ 40°C) higher

than Pb solder. Please use a soldering iron with temperature control

and adjust it to 700°F ± 20°F (370°C ± 10°C). In case of using high

temperature soldering iron, please be careful not to heat too long.

- PbF solder will tend to splash if it is heated much higher than its

melting point, approximately 1100°F (600°C).

- If you must use Pb solder on a PCB manufactured using PbF solder,

remove as much of the original PbF solder as possible and be sure

that any remaining is melted prior to applying the Pb solder.

- When applying PbF solder to double layered boards, please check the

component side for excess which may flow onto the opposite side

(See the figure below).

1.1. Suggested PbF Solder

There are several types of PbF solder available commercially. While this product is manufactured

using Tin, Silver, and Copper

(Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please

check the manufac

turer’s specific instructions for the melting points of their products and any precautions for using

their product with other

materials.

The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm,

0.6mm and 1.0mm.

1.2. How to recognize that Pb Free solder is used

1.2.1. Base Unit PCB

(Component View)

(Flow Solder Side View)

Note:

The location of the “PbF“ mark is subject to change without notice.

1.2.2. Handset PCB

(Component View)

(Flow Solder Side View)

Note:

The location of the “PbF“ mark is subject to change without notice.

1.2.3. Charger Unit PCB

Note:

The location of the “PbF“ mark is subject to change without notice.

2. FOR SERVICE TECHNICIANS

ICs and LSIs are vulnerable to static electricity.

When repairing, the following precautions will help prevent recurring malfunctions.

1. Cover the plastic parts boxes with aluminum foil.

2. Ground the soldering irons.

3. Use a conductive mat on the worktable.

4. Do not touch IC or LSI pins with bare fingers.

3. CAUTION

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type

recommendenced by the manufacturer.

Dispose of used batteries according to the manufacture’s Instructions.

4. BATTERY

4.1. Battery Installation

Please ensure the batteries are inserted as shown. part should be inserted first.

Close the cover as indicated by the arrow.

- When you replace the batteries, part should be removed first.

4.2. Battery Charge

At the time of shipment, the batteries are not charged. To charge, place the handset on the base unit.

Please charge the batteries for about 7 hours before initial use. During charging, the battery icon is as

shown below.

The handset which power is off will be turned on automatically when it is placed on the base unit.

In normal use, the handset and the base unit should be powered on at all times.

Note for Service:

The battery strength may not be indicated correctly if the battery is disconnected and connected

again, even after it is fully charged.

In that case, by recharging the battery as mentioned above, you will get a correct indication of the

battery strength.

4.3. Battery Life

- Battery life is dependent on use and conditions but in general when

using fully charged Ni-MH batteries (700 mAh):

Talk time: 10hrs approx.

Standby time: 120hrs approx.

- When using Ni-Cd batteries (250 mAh):

Talk time: 4hrs approx.

Standby time: 40hrs approx.

(Times indicated are for peak performance)

- The batteries reach peak performance after several full charge/

discharge cycles.

- The batteries cannot be overcharged unless they are repeatedly

removed and replaced.

- If battery life is shortened then please check that battery and charge

terminals are clean.

- For maximum battery life, it is recommended that the handset is not

recharged until battery icon flashes .

4.4. Replacing the Batteries

If the icon flashes after a few telephone calls even when the handset batteries have been

fully charged, 2 batteries must be replaced.

Charge new batteries for approximately 7 hours before initial use.

(The telephone line cord must not be connected to the telephone socket at this time).

When replacing the batteries, ensure that the correct battery type is selected.

- To exit the operation, press any time.

- Do not use non-rechargeable batteries. If non-rechargeable batteries

are fitted and start charging, it may cause the leakage of the battery

electrolyte.

Please use only Panasonic P03P(Ni-MH) or P03H(Ni-Cd) batteries.

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