Panasonic KX-TC2000NZB User manual

© 2003 Panasonic Communications Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
KX-TC2000NZB
KX-TC2000NZW
KX-TC2000NZF
Cordless Phone
Black Version
White Version
Blue Version
(for New Zealand)
Telephone Equipment
ORDER NO. KM40308180C3

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. Recharge 7
4.2. Battery information 7
5 BATTERY REPLACEMENT 8
6 LOCATION OF CONTROLS 9
6.1. Base Unit 9
6.2. Handset 9
7 CONNECTION 10
8 OPERATIONS 12
8.1. Making Calls 12
8.2. Answering Calls 12
8.3. Storing Phone Numbers in Memory 13
8.4. Storing a Phone Number in the DIRECT Button 13
8.5. Dialing a Stored Number 14
8.6. Dialing the Stored Number in the DIRECT Button 14
8.7. Recall Button 15
9 DISASSEMBLY INSTRUCTIONS 16
10 TROUBLESHOOTING GUIDE 18
10.1. Check Power 19
10.2. Bell Reception 20
10.3. Check Battery Charge 21
10.4. Check Link 22
10.5. Check Handset Transmission 24
10.6. Check Handset Reception 24
11 ADJUSTMENTS (BASE UNIT) 25
11.1. Test Mode Flow Chart (Base Unit) 25
11.2. How to change the channel 26
11.3. Adjustment 26
11.4. Adjustment Standard (Base Unit) 27
12 ADJUSTMENTS (HANDSET) 28
12.1. Test Mode Flow Chart (Handset) 28
12.2. How to change the channel 29
12.3. Adjustment 29
12.4. Adjustment Standard (Handset) 30
13 RF SPECIFICATION 32
13.1. Base Unit 32
13.2. Handset 32
14 HOW TO CHECK THE HANDSET SPEAKER 32
15 FREQUENCY TABLE (MHz) 33
16 EXPLANATION OF CPU DATA COMMUNICATION 34
16.1. STAND-BY -> TALK, TALK -> STAND-BY 34
16.2. Ringing 35
16.3. Changing the Channel 36
16.4. Ports for transmitting and receiving of data 37
16.5. Waveform of DATA used for cordless transmission and
reception 37
17 BLOCK DIAGRAM (BASE UNIT) 38
CONTENTS
Page Page
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

18 BLOCK DIAGRAM (HANDSET) 39
19 CIRCUIT OPERATION 40
19.1. Outline 40
19.2. Power Supply Circuit 41
19.3. Reset Circuit (Base Unit) 42
19.4. Charge Circuit 43
19.5. Telephone Line Interface 43
19.6. DTMF 43
19.7. Transmitter/Receiver 44
19.8. Signal Route 46
20 CIRCUIT OPERATION (HANDSET) 47
20.1. Reset Circuit (Handset) 47
20.2. Battery Low / Power Down Detector 48
21 CPU DATA (Base Unit) 49
21.1. IC2 49
22 CPU DATA (Handset) 50
22.1. IC2 50
23 RF IC (Base Unit and Handset) 51
23.1. IC1 51
24 HOW TO REPLACE FLAT PACKAGE IC 52
24.1. Preparation 52
24.2. Procedure 52
24.3. Modification Procedure of Bridge 52
25 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)
53
26 CABINET AND ELECTRICAL PARTS LOCATION (HANDET) 54
27 ACCESSORIES AND PACKING MATERIALS 55
28 REPLACEMENT PARTS LIST 56
28.1. Base Unit 56
28.2. Handset 58
28.3. ACCESSORIES AND PACKING MATERIALS 60
29 FOR SCHEMATIC DIAGRAM 61
29.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit)) 61
29.2. Handset (SCHEMATIC DIAGRAM (Handset)) 61
30 SCHEMATIC DIAGRAM (Base Unit) 62
30.1. Base Unit 62
30.2. RF Unit (Base Unit) 63
31 SCHEMATIC DIAGRAM (Handset) 64
31.1. Handset 64
31.2. RF Unit (Handset) 65
31.3. Memo 66
32 CIRCUIT BOARD (Base Unit) 67
32.1. Component View 67
32.2. Flow Solder Side View 68
33 CIRCUIT BOARD (Handset) 69
33.1. Component View 69
33.2. Flow Solder Side View 70
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

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 ± 50° 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.
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

1.2. How to recognize that Pb Free solder is used
1.2.1. Base Unit Main PCB
IC5
JK1
PbF
Marked
(Component View)
Note:
The location of the "PbF" marks is subject to change without notice.
1.2.2. Handset PCB
IC2
DPX1
PbF
Marked
(Component View)
Note:
The location of the "PbF" marks is subject to change without notice.
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

2 FOR SERVICE TECHNICIANS
ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1.Cover plastic parts boxes with aluminum foil.
2.Ground the soldering irons.
3.Use a conductive mat on worktable.
4.Do not grasp 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 recommended by the manufacturer.
Dispose of used batteries according to the manufacturer´s Instructions.
6
KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

4 BATTERY
4.1. Recharge
4.2. Battery information
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

5 BATTERY REPLACEMENT
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

6 LOCATION OF CONTROLS
6.1. Base Unit
6.2. Handset
9
KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

7 CONNECTION
• ••
• USE ONLY WITH Panasonic AC ADAPTOR PQLV16AL.
• ••
• The AC adaptor must remain connected at all times.
(It is normal for the adaptor to feel warm during use.)
• ••
• This unit will not function during a power failure.
If you want to connect a standard telephone on the same line, use a T-adaptor.
• ••
• KX-TC2000NZ is not designed to be used with rotary (pulse dialling) services.
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

For Service Hint:
11
KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

8 OPERATIONS
8.1. Making Calls
8.2. Answering Calls
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

8.3. Storing Phone Numbers in Memory
8.4. Storing a Phone Number in the DIRECT Button
13
KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

8.5. Dialing a Stored Number
8.6. Dialing the Stored Number in the DIRECT Button
14
KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

8.7. Recall Button
15
KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

9 DISASSEMBLY INSTRUCTIONS
Show in Fig. Procedure To remove. Remove.
1 1 Lower Cabinet Screws (2.6 × 12)....................... (A) × 4
21, 2 Main P.C. Board Screw (2.6 × 6).......................... (B) × 1
Screw (2.6 × 12).......................... (C) × 1
Solder
Main P.C. Board.
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

Show in Fig. Procedure To remove. Remove.
3 3 Rear Cabinet Battery compartment cover.
43, 4 Screws (2.6 × 12)......................(D) × 2
53, 4, 5 Follow the procedure.
63, 4, 5, 6 Main P. C. Board Screw (2.6 × 12)........................(E) × 1
Tape and solder.
Main P. C. Board.
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

10 TROUBLESHOOTING GUIDE
Cross Reference:
Check Power (P.19)
Bell Reception (P.20)
Check Battery Charge (P.21)
Check Link (P.22)
Check Handset Transmission (P.24)
Check Handset Reception (P.24)
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

Cross Reference:
Reset Circuit (Base Unit) (P.42)
Power Supply Circuit (P.41)
Cross Reference:
Charge Circuit (P.43)
Note:
CPU: IC2
Note:
CPU: IC2
10.1. Check Power
*: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.67) or CIRCUIT BOARD (Handset) (P.69)
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF

Cross Reference:
Check Link (P.22)
Telephone Line Interface (P.43)
Note:
CPU: IC2
10.2. Bell Reception
Cross Reference:
Check Link (P.22)
*: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.67) or CIRCUIT BOARD (Handset) (P.69)
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KX-TC2000NZB / KX-TC2000NZW / KX-TC2000NZF