KX-TS2350CAB KX-TS2350CAC KX-TS2350CAH KX
Contents
1. ABS HB TS2350CAH 1 1003323 BUTTON HOOK for ABS HB TS2350CAR 1 1003321 BUTTON HOOK for ABS HB TS2350CAW 2 1061022 BODY for 52350 20 Remarks No TS2350CAC TS2350CAH TS2350CAR TS2350CAW KX TS2350CAB CAC CAR KX TS2350CAH SWITCH 16 KEY for KX TS2350CAW TS2350CAB TS2350CAC TS2350CAH TS2350CAR TS2350CAW 10018 RUBBER PARTS FOOT CUSHION PQKL1005822 STAND WALL MOUNT for KX TS2350CAB PQKL1005824 STAND WALL MOUNT for TS2350CAC PQKL10058Z5 STAND WALL MOUNT for TS2350CAH 7 PQKL1005823 STAND WALL MOUNT for KX TS2350CAR 7 PQKL1005821 STAND WALL MOUNT for KX TS2350CAW 100257 RUBBER PARTS FOOT CUSHION 13 1 2 Main P C Board Parts Ref Part No No PQWP1S2350CA P C BOARD ASS Y RTL PCB1 1 8 2 2 2 2 3 7 7 7 Part 8 Description Remarks TRANSISTORS CENE AND CONNECTOR Q Q Q Q D D D D D JACK1 JACK3 2 1 2 3 7 2 13 17 23 24 51 52 53 23 Fh Part No Remarks ERJ3GEYJ335 ERDS1TJ222 ERJ3GEYJ185 ERJ3GEYJ183 18 ERJ3GEYJ473 47 ERJ3GEYJ221 220 ERJ3GEYJS62 5 6K Part Name amp Description R1 R2 R3 R7 R1 R1 R2. YAONANOAS ANOL AGO TAW Jayeeds SH OOV an os 1 NOLLOVH LX3 H3MOd S NOILV LdVQV 3 MT am E als IH S1 220 69 Olull su 2018 9 12 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 7 CIRCUIT OPERATIONS 7 1 Telephone Line Interface and Pulse Dial Circuit When the hook switch SW1 is ON off hook the circuit is closed and current is supplied to the base of Q2 the diode bridge 017 and Q2 is On 1 is ON OFF HOOK condition Q1 and Q2 are the dial pulse generating circuits and are driven by the DIALER 101 when the DIALER Pin 10 of IC1 is LOW gt Q2 is OFF and Q1 is OFF break If port Pin 10 is HIGH Q2 is ON 1 is ON make 7 2 Tone Dial Circuit Function The tone dialing circuit consists of a DTMF Dual Tone Multi Frequency signal generator outputted from Pin 25 of the IC1 for tone dialing and also a circuit for outputting the signal to line The circuit identifies inputs from the 12 keys 1 2 3 4 5 6 7 8 9 0 x and 8 by means of a total of seven frequencies that is four low frequencies Low group and three high frequencies High group Circuit Description When a dial key is pressed a DTMF signal is output from Pin 25 of IC1 as an analog synthetic wave The signal flow to the line is as follows Pin 25 of IC1 gt gt R9
3. KX TS2350CAB KX TS2350C AC 52350 52350 KX TS2350CAW epis Jepjos uonejedo quvoa LINOUYIO 05225 1 01 5 14 9piS 691 29 KX TS2350CAB 52350 KX TS2350C AH 52350 KX TS2350CAW 30 G N KXTS2350CAB KXTS2350CAC KXTS2350CAH KXTS2350CAR KXTS2350CAW
4. gt Q1 gt Line The signal is sent to the line via the following path Q3 is an amplifier which is used to output the signal to line Shown below is the signal flow used to output the DTMF signal from the handset as a monitor tone when a dial key is pressed Pin of IC1 gt VR1 gt C15 Handset Speaker The signal combination and frequency corresponding to each dial key is shown on the next page Circuit Diagram Pin 1 of IC1 Ring Pin 27 of IC 1 gt Pin 25 of IC1 Red Black Pin 4 of IC1 Pin 10 of IC1 RINGER CIRCUIT JACKS 5 SP4 Eq Pin 3 of IC1 HS_JACK EN e C15 R24 NC KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW Circuit Diagram Function Tone Frequencies Low Group Frequencies High Group 697Hz 1209 Hz 1 5 1 5 770 Hz 1336 Hz 1 5 1 5 Hz 1 5 941 Hz 1 5 7 3 Power Circuit and Redial Back up Circuit 1477 Hz 1 5 This set is powered from the line When it is an OFF HOOK status Tel Line 017 Q1 R9 27 of IC1 to become the power supply for 1 1 speech network The voltage from the line is turned into a constant voltage by D2 and then supplied to the IC1 reset circuit Through Tel Line R1 017 R14 to become the power supply for and the redial Back up will be done 013 Block Diagram 14 R3 H1 Q1 Q2 D1
5. 1 1 917 Check IC1 Check Q1 and Q2 KX TS2350CAB 52350 KX TS2350C AH 52350 KX TS2350CAW 5 5 Problems With Ringer Turn Ringer SW to High Is the voltage at pin 8 of IC2 Check SA1 Connection Change SA1 must be open YES YES Is the voltage at pin 5 Check 51 2 must short NNN 20 40 5 53 1 4 must short Check Incoming Bell Change new 51 2 YES Check Ringer Change 2 Change S3 10 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 5 6 Connect to the telephone line and lift the handset Push and hold the key 0 9 Does the signal at Pin 11 01101 3 58MHz oscillate Is the voltage at Pin Check D17 Q1 Q2 S1 4 of IC1 3 5V SA1 and Check X1 C30 and IC1 Is there voltage output from any of the Pins 13 to 16 of Check the contact IC1 when any key is pressed of key as shown below Check the soldered Pin 13 to 16 of IC1 and all 0V When the signals are output from more than one Pin of 13 to 16 of IC1 Change 11 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW INVHOVIGO 0018 092251 510 050 91507 1
6. 1 R1 o _ ERI3GEYOROO o _ O O O 1o 1o 1o omm ver PowvzerLTBis vaRIABLE vamzasbm ____ 5 000 000 13 1 3 Operational P C Board Part No R4 C1 C5 C6 C9 C1 C1 C1 C1 C1 C17 0 4 6 8 7 R52 1 2 3 5 6 R O R Re R5 R6 R7 ___ R8 R9 Ro Ris Ris R46 R47 ___ R52 55 E ci CN co co 2 c15 c16 gt 103 Q N PCB2 PQWP2TS500MX OPERATIONAL C BOARD ASS Y RTL 21 KX TS2350CAB KX TS2350C AC KX TS2350C AH KX TS2350C AR KX TS2350CAW 13 2 Accessories and Packing Materials Note 1 You can download and refer to the Operating Instructions Instruction book on TSN Server Part Name amp Description TS2350CAB CAC CAH CAR TS2350CAW p our 5272 HANDSET for KX TS2350CAC 5112 HANDSET for KX TS2350CAW 154762 GIFT BOX KX TS2350CAB 52350 KX TS2350C AH 52350 KX TS2350CAW 22 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 14 FOR SCHEMATIC DIAGRAM SCHEMAT
7. 2 Important safety notice Components identified by the mark indicates special characteristics important for safety When replacing any of these components only use specified manufacture s parts 3 S mark means part is one of some identical parts For that reason it may be different from the installed part ISO code Example ABS 94HB of the remarks column shows quality of the material and a flame resisting grade about plastics RESISTORS amp CAPACITORS Unless otherwise specified All resistors in ohms Q 10000 1000 All capacitors are in MICRO FARADS uF P uuF amp Wattage of Resistor Type ERC Solid ERX Metal Film ERG Metal Oxide ERO Metal Film PQAR Chip ERS Fusible Resistor ERF Cement Resistor ERDS Carbon ERJ Chip Wattage amp Voltage Of Capacitor Type ECFD Semi Conductor ECCD ECKD ECBT F1K ECUV Ceramic ECQS Styrol ECQE ECQV ECQG Polyester ECUV PQCUV ECUE Chip ECEA ECST EEE Electlytic ECQMS Mica ECQP Polypropylene 0J OF 3 15V 1 10 1V 35V 0J 6 3V 6 3V 1 35V 1 10V 50 1H 50V 16 1 16V 1E 25 25V 2A 100 Base Unit 13 1 1 Cabinet and Electrical Parts Ref Part No Part Name amp Description Remarks No 1 1003322 5 52350 1 1003328 5 TS2350CAC 1 1003329
8. 7 Dial Pulse SW Diode and Bridge Control O T R14 1034 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 8 OPTION JUMPER TABLE Dialing Mode SW PULSE 10 33 66ms 22 10pps 40 60ms default E MEN TONE JP0 Refer to Main Flow Solder Side View P 28 Note 15 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 9 CPU DATA IC1 Clock frequency 3 58MHz Operating range 13 100 CO t LO LO Qj LO 1 O 2 0 lt gt 1 Om E gt lt gt gt N Symbol Function Description Line Current Sense Input This is the input for sending the line current MF Level Setting A voltage divider connected from this pin to A GND and VSS can be used to set the DTMF level Receive Output This is the output for driving a dynamic earpiece with an impedance of 140 to 300 B m r LS D Positive Voltage Supply This is the supply pin for the circuit GND This is the analog ue ground for the amplifiers TB output of the melody generator for tone ringing Hi Z when not active LLC Select pin for line loss compensation LLC AGND 20 50 L
9. E 8 Xi SEE 8 o c Pulse Dialing Prolom 8 5 3 Problems With the Handset 9 5 4 Tone Dialing ee eheee 9 5 9 Problems With RINGET sassa E 10 5 6 How to Check Scanning to the key 11 6 BLOCK DIAGRAM sun u maa 12 7 CIRCUIT OPERATIONS Y 13 7 1 Telephone Line Interface and Pulse Dial Circuit 13 7 2 13 7 3 Power Circuit Back up Circuit 14 S OPTION JUMPER TABLE lt lt 15 Q umu 16 10 CABINET AND ELECTRICAL PARTS LOCATION 17 11 ACCESSORY AND PACKING MATERIALS 18 12 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES 19 13 REPLACEMENT PARTS LIST HH 20 168 20 13 2 Accessories and Packing Materials 21 14 FOR SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM 23 15 SCHEMATIC DIAGRAM 24 16 CIRCUIT tespha bine neeu pH epeen 27 16 1 Main Component View lt lt 27 16 2 Main Flow Solder Side Vie
10. IC DIAGRAM 1 DC voltage measurements are taken with electronic voltmeter from negative terminal 2 This schematic diagram may be modified at any time with the development of new technology Important Safety Notice Components identified by A mark have special characteristics important for safety When replacing any of these components use only the manufacturer s specified parts 23 KX TS2350CAB KX TS2350C AC KX TS2350C AH 52350 KX TS2350CAW 15 SCHEMATIC DIAGRAM RING 500V680P C16 853 Q1 D17 a JACK1 S SS R103 47k RINGER CIRCUIT 12 N HS JACK e T x Flash OW5 Flash _ Oc 90 2 72 79 72 22 gt gt 79 72 79 542 gt 72 gt 24 R31 12k R5 4 7k C5 0 027 KX TS2350CAB KX TS2350C AC KX TS2350C AH KX TS2350C AR KX TS2350CAW FLT2 C22 16V10 IC1 SEHE EN ER 20pps40 20pps33 10pps 40 10pps33 Flash row5 row7 row8 52350 SCHEMATIC DIAGRAM 25 KX TS2350CAB 52350 KX TS2350C AH 52350 KX TS2350CAW 26 52350 KX TS2350CAC
11. KX TS2350C AH KX TS2350C AR KX TS2350CAW 2 092251 444 60 26 9 ele Mat AGI wj 8rr UND 53 SE _ ae ror eg GAY 50 207 MOTHA UA io i Nm 02 O x 14 rr aU gt TI TI 2 TEE 2 lt 71791 91 27 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 16 2 Main Flow Solder Side View for TONE for PULSE for Flash for Ringer 19 el ee 1444 23 15 16 24 20 21 JP22 25 e JP 2679 JP28 R24 H106 VDD 28 25 P R1 Os R52 24 9231 921 50 1299 0 0 Orel 1 PL 2 2 C18 OL Js 1665 9 825 2819 C23 RIO dons C24 2 fife 20 lt q 28 R101 9 1 103 N 105 o 8102 104 103 54 R8 OF DIEA R3 e O 28 BLACK KX TS2350 CIRCUIT BOARD Main Flow Solder Side View Refer to OPTION JUMPER TABLE 15
12. LC VDD 45 75 mA LLC VSS none S DP Hook Switch Input and Dial Pulse Output This is an I O that is pulled high by the hook switch when off hook and an open drain pulls it low during break periods of pulse dialing and flash OSC Oscillator Input Pin for ceramic resonator 3 58 MHz MODE Signalling Mode Select Input Mode pin Function mode 10 pps 40 60 ms MF only 82 82 ms During temporary MF 82 160 ms EB 4 Keyboard Column C3 Keyboard Column C2 Keyboard Column 16 C1 Keyboard Column 17 R4 Keyboard Row 18 R3 Keyboard Row 19 R2 Keyboard Row 20 R1 Keyboard Row FCI Frequency Comparator Input This is a Schmitt trigger input for ring frequency discrimination Disabled during off hook 21 LED Output Driver Output for driving an LED that will be flashing when in Programme 23 M1 Microphone Input Diff h T ifferential in r the microphon ric 24 M2 Microphone Input erential inputs for the microphone electric 5 CS 2 Current Shunt Control Output This N channel open drain output controls the external high power shunt transistor for the modulation of the line voltage and for shorting the line during make period see key arrangement in Schematic Diagram the scanning to the key m h C N Oc 9 5 see key arrangement in Schematic Diagram the scanning to key of pulse dialing 26 Ve Negative Power Suppy 28 Re
13. ORDER NO 40608170 Service Manual Telephone Equipment KX TS2350CAB KX TS2350CAC KX TS2350CAH KX TS2350CAR KX TS2350CAW Integrated Telephone System Black Version Blue Version Gray Version Red Version White Version for Kazakhstan for Uzbekistan SPECIFICATIONS Power Source From telephone line Dialing Mode Tone DTMF Pulse Redial Last dialed telephone number Speaker Handset 13 16 PM dynamic type receiver unit 150 Q Microphone Electret condenser microphone Dimensions HxWxD Approx 96mm x 150mm x 200mm Mass Weight Approx 475g Operating Environment 5 40 C Specifications are subject to change without notice IMPORTANT INFORMATION ABOUT LEAD FREE PbF SOLDERING lf lead free solder was used the manufacture of this product the printed circuit boards will be marked 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 2006 Panasonic Communications Co Ltd All 2 n n rights reserved Unauthorized copying distribution is a violation of law KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW N WARNING This service information is designed for experienced repair technici
14. Tone Dialing Check Q2 Q1 C22 and VR1 No pulse dial Nopusedal jOnekQt Q2andICi Pulse Dialing Problems Can a pulse sound be monitored YES Does the voltage across Tip T and Ring R Check D17 SA1 Q1 and Q2 rapidly switch between 48 V and 10V YES Does Pin 10 of IC1 output the dial pulse Check IC1 YES Check Q1 Q2 D17 ygs pulses 0 6 Vp p appear at the base of Check Q2 C21 and 5 1 Q2 Pin 10 of IC1 and H7 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 5 3 Problems With Handset Connect to the telephone line and lift the handset Can a dial tone be heard from the handset YES Can signals be Does a signal NO transmitted from appear at Pin 23 the handset and Pin 24 YES Check handset and handset cord Check Q3 and R9 Does a signal YES appear at Pin 25 Check of IC1 YES Check Q1 D17 Is there a dial tone at Pin 28 of IC1 YES Q2 5 1 and C22 Is there a dial tone at Pin 3 of IC1 YES Check the handset handset cord C15 5 4 Tone Dialing Problems Check DIALING MODE 15 Is signal the DTMF sound Pin 1 of IC1 be monitored Check Q3 and Does a DTMF signal Does a signal appear at Pin 25 of appear at emitter of Check D17 and 5
15. ans only and is not designed for use by the general public It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death When you note the serial number write down all 11 digits The serial number may be found on the bottom of the unit Note Because section 3 of this manual is an extract from the operating instructions for 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 Page 1 ABOUT LEAD FREE SOLDER Pb free 3 Tele SUGGESIEd PO Sold er ess 3 1 2 How to Recognize that Pb Free Solder is Used 4 2 FOR SERVICE TECHNICIANS 5 3 OPERATING INSTRUCTIONS 2 6 LOCATION OF COMING 6 sente P 6 9 9 quede esI M uU 6 4 DISASSEMBLY INSTRUCTIONS 7 5 TROUBLESHOOTING GUID
16. 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 manufacturer 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 3 mm 0 6 mm and 1 0 mm 0 3 mm X 100 g 0 6 mm X 100 g 1 0 mm X 100 g KX TS2350CAB KX TS2350C AC 52350 52350 KX TS2350CAW 12 How to Recognize that Pb Free Solder is Used Example Main P C B IAS 7 Note The location of the mark is subject to change without notice KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 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 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 3 INSTRUCTIONS 3 1 Location of Contr
17. ceive Input This is the input for the receive signal VSS Ve EMC ground connection 16 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 10 CABINET AND ELECTRICAL PARTS LOCATION 1 PQHV2610PJ65 o LL gt lt 17 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 11 ACCESSORY PACKING MATERIALS CCG KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 12 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES Cathode Cathode B1ACGP000007 PQVT2N6517CA PQVTKSB564AC N5BCBZ000001 4051 4100 00001 000009 1 00000290 00004 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 13 REPLACEMENT PARTS LIST 1 RTL Retention Time Limited Note The marking RTL indicates that the Retention Time is limited for this item After the discontinuation of this assembly in production the item will continue to be available for a specific period of time The retention period of availability is dependant on the type of assembly and in accordance with the laws governing part and product retention After the end of this period the assembly will no longer be available
18. ols Buttons DIALING MODE Selector RINGER Selector m Y FLASH Button TONE Button Button 3 2 Connection 1 Connect the telephone line cord CD 3 Set the DIALING MODE selector to PULSE e f you cannot dial set to TONE 2 Connect the handset cord then confirm the dial tone DIALING MODE PULSE To Single Line Telephone Jack f Line 4 Set the RINGER selector to HIGH LOW OFF Example LOW is selected DIALING MODE Selector RINGER RINGER Selector Se Handset e When set to OFF the unit will not ring a 3 3 Troubleshooting Problem Remedy The unit does not work The call cannot be connected even if you dialed correctly The unit does not ring Check the settings Check whether the DIALING MODE selector setting is correct or not The RINGER selector is set to OFF Set to HIGH or LOW KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 4 DISASSEMBLY INSTRUCTIONS A JE 0 E NS s Hemove the P C Boards Fig 1 Fig 2 Shown in Fig Screws 2 6 x 10 P C Boards Remove the P C Boards KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 9 5 1 9 2 TROUBLESHOOTING GUIDE Service Hints SYMPTOM CURE No
19. w 28 16 3 Operation Flow Solder Side View 29 KX TS2350CAB 52350 KX TS2350C AH KX TS2350C AR KX TS2350CAW 1 ABOUT LEAD FREE SOLDER 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 Caution e PbF solder has a melting point that is 50 F 70 80 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 e Exercise care while using higher temperature soldering irons Do not heat the PCB for too long time in order to prevent solder splash or damage to the PCB e PbF solder will tend to splash if it is heated much higher than its melting point approximately 1100 600 e 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 component component in remove all of the P excess solder slice view solder 11 Suggested PbF Solder There
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