Read Panasonic KX-TCD420RUT / KX-A142RUT Service Manual online
KX-TCD420RUT
KX-A142RUT
KX-A142RUT
Digital Cordless Answering System
Titanium Black Version
(for Russia)
Telephone Equipment
ORDER NO. KM40307150C3
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
7
3
CAUTION
7
4
BATTERY
8
4.1.
Battery Installation
8
4.2.
Battery Charge
8
4.3.
Battery Life
9
4.4.
Replacing the Batteries
9
5
LOCATION OF CONTROLS
10
5.1.
Base Unit
10
5.2.
Handset
10
6
SETTINGS
11
6.1.
Connection
11
6.2.
Symbols Used in This Service Manual
11
6.3.
PIN Code
12
6.4.
Reset
14
6.5.
Key Lock
15
6.6.
Recall Feature
15
6.7.
Dialling Pause for PBX line/long distance service users
15
6.8.
Call Restriction
16
6.9.
Cancelling Call Restricted Handset(s)
16
6.10. Call BAR On/Off (Call Prohibition On/Off)
16
6.11. Selecting the Display Language
17
6.12. Select Dialling Mode (Tone/Pulse)
17
6.13. Select Flash Timing
17
6.14. Automatic Route Selection
18
6.15. Summary of Programmable Functions
20
7
DISPLAY
21
7.1.
Handset Display
21
7.2.
Before Requesting Help (Troubleshooting)
22
8
OPERATIONS
24
8.1.
Power On/Off
24
8.2.
Making a Call
24
8.3.
Answering a Call
24
8.4.
Setting the Clock/Date
24
8.5.
Phonebook
25
9
DISASSEMBLY INSTRUCTIONS
28
9.1.
Base Unit
28
9.2.
Handset
29
9.3.
Charger Unit
30
10 ASSEMBLY INSTRUCTIONS
31
10.1. Warning When Constructing the Base Unit
31
11 TROUBLESHOOTING GUIDE
32
11.1. Check Power
33
11.2. Check Battery Charge
34
11.3. Check Link
35
11.4. Check Handset Transmission
37
11.5. Check Handset Reception
37
11.6. Check Caller ID
37
11.7. TAM Voice Prompt Problems
38
11.8. Bell Reception
39
12 CHECK PROCEDURE (BASE UNIT)
40
12.1. Preparation
40
12.2. PC Setting
40
12.3. TAM Voice Prompt Download
41
13 CHECK PROCEDURE (HANDSET)
42
13.1. Preparation
42
13.2. PC Setting
42
14 ADJUSTMENTS (BASE UNIT AND CHARGER UNIT)
43
14.1. Adjustment (Base Unit)
43
14.2. Adjustment Standard (Base Unit)
46
14.3. Adjustment (Charger Unit)
48
14.4. Adjustment Standard (Charger Unit)
48
15 ADJUSTMENTS (HANDSET)
49
15.1. Adjustment
49
15.2. Adjustment Standard (Handset)
52
16 RF SPECIFICATION
53
16.1. Base Unit
53
16.2. Handset
53
17 HOW TO CHECK THE HANDSET SPEAKER
53
18 FREQUENCY TABLE (MHz)
54
19 BLOCK DIAGRAM (BASE UNIT)
55
20 CIRCUIT OPERATION (BASE UNIT)
56
20.1. Outline
56
20.2. Power Supply Circuit
57
20.3. Telephone Line Interface
58
20.4. Transmitter/Receiver
58
20.5. Pulse Dialing
58
CONTENTS
Page
Page
2
KX-TCD420RUT / KX-A142RUT
21 BLOCK DIAGRAM (HANDSET)
59
22 CIRCUIT OPERATION (HANDSET)
60
22.1. Outline
60
22.2. Power Supply Circuit/Reset Circuit
60
22.3. Charge Circuit
60
22.4. Battery Low/Power Down Detector
60
23 CIRCUIT OPERATION (CHARGER UNIT)
61
23.1. Power Supply Circuit
61
24 SIGNAL ROUTE
61
25 CPU DATA (BASE UNIT)
62
25.1. IC8 (BBIC)
62
26 CPU DATA (HANDSET)
65
26.1. IC1 (BBIC)
65
27 EEPROM LAYOUT (BASE UNIT)
67
27.1. Scope
67
27.2. Introduction
67
27.3. EEPROM Layout
67
28 EEPROM LAYOUT (HANDSET)
71
28.1. Scope
71
28.2. Introduction
71
28.3. EEPROM contents
71
29 HOW TO REPLACE FLAT PACKAGE IC
74
29.1. Preparation
74
29.2. Procedure
74
29.3. Modification Procedure of Bridge
74
30 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)
75
31 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET) 76
32 CABINET AND ELECTRICAL PARTS LOCATION (CHARGER
UNIT)
77
33 ACCESSORIES AND PACKING MATERIALS
78
33.1. KX-TCD420RUT
78
33.2. KX-A142RUT
79
34 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES
80
34.1. Base Unit
80
34.2. Handset
80
34.3. Charger Unit
80
35 REPLACEMENT PARTS LIST
81
35.1. Base Unit
81
35.2. Handset
82
35.3. Charger Unit
83
35.4. Accessories and Packing Materials
83
35.5. Fixtures and Tools
84
35.6. Memo
85
36 SCHEMATIC DIAGRAM (BASE UNIT)
86
37 SCHEMATIC DIAGRAM (HANDSET)
88
38 SCHEMATIC DIAGRAM (CHARGER UNIT)
90
39 CIRCUIT BOARD (BASE UNIT)
91
39.1. Component View
91
39.2. Flow Solder Side View
92
40 CIRCUIT BOARD (HANDSET)
93
40.1. Component View
93
40.2. Flow Solder Side View
94
41 CIRCUIT BOARD (CHARGER UNIT)
95
41.1. Component View
95
41.2. Flow Solder Side View
95
3
KX-TCD420RUT / KX-A142RUT
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.
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).
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.
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.
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.
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).
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.
4
KX-TCD420RUT / KX-A142RUT
