Panasonic KX-TDA6175XJ / KX-TDA6175X Service Manual ▷ View online
KX-TDA6175XJ
KX-TDA6175X
(for Europe, Asia Oceania, Middle Near East, Latin
America, Russia and Africa)
16-Port Single Line Telephone Extension with Message Lamp Card
IMPORTANT INFORMATION ABOUT LEAD FREE, (PbF), SOLDERING
If lead free solder was used in the manufacture of this product the printed circuit boards will be marked PbF.
Standard leaded, (Pb), solder can be used as usual on boards without the PbF mark.
If lead free solder was used in the manufacture of this product the printed circuit boards will be marked PbF.
Standard leaded, (Pb), solder can be used as usual on boards without the PbF mark.
When this mark does appear please read and follow the special instructions described in this manual on the use of PbF and how
it might be permissible to use Pb solder during service and repair work.
it might be permissible to use Pb solder during service and repair work.
ORDER NO. KMS0510136CE
1 ABOUT LEAD FREE SOLDER (PbF: Pb free)
3
1.1.
SUGGESTED PbF SOLDER
3
1.2.
HOW TO RECOGNIZE THAT Pb FREE SOLDER IS
USED
4
2 FOR SERVICE TECHNICIANS
5
3 GENERAL DESCRIPTION
5
4 SPECIFICATION
5
5 SYSTEM CONSTRUCTION
6
5.1.
INSTALLING/REMOVING THE OPTIONAL SERVICE
CARDS
7
6 BLOCK DIAGRAM
13
7 CIRCUIT OPERATION
14
7.1.
CONTROL-SYSTEM CIRCUIT
14
7.2.
CODEC FUNCTION(IC201,202,250,251)
17
7.3.
2W-4W CONVERSION
18
7.4.
DTMF SIGNAL DETECTION
18
7.5.
POWER SUPPLY
19
7.6.
DIAL PULSE DETECTION
19
7.7.
HOOK DETECTION
20
7.8.
RING TRIP FEATURE
20
7.9.
SURGE PROTECTION
21
7.10. SELF-DIAGNOSIS
21
7.11. POWER FAILURE SWITCH FEATURE
22
7.12. BELL SIGNAL GENERATOR
22
7.13. BELL SIGNAL TRANSMISSION
23
7.14. MESSAGE WAITING VOLTAGE GENERATING
FUNCTION
23
7.15. MESSAGE WAITING SIGNAL TRANSMITTING
FUNCTION
24
7.16. POWER SUPPLY VOLTAGE GENERATOR
25
8 TROUBLESHOOTING GUIDE
26
9 IC DATA
34
9.1.
IC14 (ASIC) I/O MAP
34
9.2.
IC201, IC202, IC250, IC251 (CODEC) I/O PORT
36
9.3.
IC601 (CPU) I/O MAP
38
10 HOW TO REPLACE A FLAT PACKAGE IC
39
10.1. PREPARATION
39
10.2. REMOVAL PROCEDURE
39
10.3. INSTALLATION PROCEDURE
39
10.4. REMOVING SOLDER FROM BETWEEN PINS
39
11 TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES
40
12 CABINET AND ELECTRICAL PARTS LOCATION
41
13 ACCESSORIES AND PACKING MATERIALS
42
14 REPLACEMENT PARTS LIST
43
14.1. CABINET AND ELECTRICAL PARTS LOCATION
43
14.2. ACCESSORIES AND PACKING MATERIALS
43
14.3. MAIN BOARD PARTS
43
14.4. MEMO
50
15 FOR SCHEMATIC DIAGRAM
51
15.1. WAVEFORM
52
15.2. EMSLC16 BLOCK DIAGRAM
56
16 SCHEMATIC DIAGRAM
57
16.1. No.1
57
16.2. No.2
61
16.3. No.3
65
16.4. No.4
69
17 PRINTED CIRCUIT BOARD
71
17.1. Component View
71
17.2. Bottom View
72
CONTENTS
Page
Page
2
KX-TDA6175XJ / KX-TDA6175X
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 when discussing the lead free solder used in our manufacturing process which is made from Tin, (Sn), Silver,
(Ag), and Copper, (Cu).
(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° ~ 70° F, (30° ~ 40°C) higher than Pb solder. Please use a soldering iron with
temperature control and adjust it to 700° ± 20° F, (370° ± 10°C). In case of using high temperature soldering iron, please
be careful not to heat too long.
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 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.
(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.
3
KX-TDA6175XJ / KX-TDA6175X
1.2. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED
4
KX-TDA6175XJ / KX-TDA6175X