Matsushita Electric KM40108849C3 Page 17 Service Manual Download | Manualshive

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3. Solder employing specified solder to direction of arrow, as sliding

the soldering iron.

7.3. Modification Procedure of Bridge

1. Re-solder slightly on bridged portion.

2. Remove remained solder along pins employing soldering iron as

shown in below figure.

8. CPU DATA

8.1. IC801

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Summary of Contents for KM40108849C3

Page 1: ...ORDER NO KM40108849C3 Telephone Equipment KX T2375MXW Integrated Telephone System White Version for Asia Middle Near East and Other areas SPECIFICATIONS 1...

Page 2: ...2001 Kyushu Matsushita Electric Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law 2...

Page 3: ...1 LOCATION OF CONTROLS 2 DISPLAY 3...

Page 4: ...3 CONNECTION 3 1 Connecting the Handset Telephone Line Cord After connection lift the handset to check for a dial tone 4...

Page 5: ...ce If you connect a communication device computer modem fax answering machine etc to the telephone line you can connect it through this unit using the DATA jack After connecting the handset and teleph...

Page 6: ...or the communication device may not operate properly 4 SETTINGS 4 1 Selecting the Dialing Mode You can select the dialing mode by programming If you have touch tone service set to Tone If rotary or pu...

Page 7: ...4 2 Time Adjustment You can select AM PM or 24 hour clock by programming Make sure that a call is not put on hold 7...

Page 8: ...4 3 Setting the LCD Contrast You can select the LCD contrast level from 1 to 4 by programming Your phone comes from the factory set to 3 Make sure that a call is not put on hold 8...

Page 9: ...Your phone comes from the factory set to HIGH 5 SPECIAL FEATURES 5 1 FLASH Button Pressing allows you to use special features of your host PBX such as transferring an extension call or accessing spec...

Page 10: ...u are connected via a PBX a longer flash time may be necessary to use PBX functions transferring a call etc Consult your PBX installer for the correct setting 5 3 Setting the Pin Code A 4 digit Pin Co...

Page 11: ...n Once you locked the dialing buttons even emergency numbers cannot be dialed Only incoming calls are accepted until the dial lock is canceled Before using this feature we recommend storing an emergen...

Page 12: ...use the following features while the dialing buttons are locked Dialing a number you programmed into the memory of the EMERGENCY button Adjusting the handset and speakerphone volumes Muting the conve...

Page 13: ...ted leading digits cannot be dialed out 5 5 1 To Set the Call Restriction Make sure that a call is not put on hold If your unit is connected to a PBX this function may not operate Contact your PBX sup...

Page 14: ...5 6 How to Release the Establishment of Dial Lock After this procedure you will be able to establish a new password How to release the establishment of dial lock 14...

Page 15: ...6 DISASSEMBLY INSTRUCTIONS 15...

Page 16: ...mended power consumption will be between 30 W to 40 W Temperature of Copper Rod 662 50 F 350 10 C An expert may handle between 60 80 W iron but beginner might damage foil by overheating Flux HI115 Spe...

Page 17: ...o direction of arrow as sliding the soldering iron 7 3 Modification Procedure of Bridge 1 Re solder slightly on bridged portion 2 Remove remained solder along pins employing soldering iron as shown in...

Page 18: ...8 2 Speakerphone IC Data 18...

Page 19: ...pin peak detects the speech signals for comparison with the background noise level held at CP1 13 XDI Input to the transmit detector system The microphone amplifier output is ac coupled to pin through...

Page 20: ...a variable resistor provides receive mode volume control The VLC pin voltage should be less than or equal to VB 25 ACF Attenuator control filter A capacitor connected to this pin reduces noise transie...

Page 21: ...10 BLOCK DIAGRAM 11 BLOCK DIAGRAM IC 1 21...

Page 22: ...11 1 Communication ICs 12 MODULE BLOCK DIAGRAM 12 1 MODULE BLOCK DIAGRAM 22...

Page 23: ...re outputted at the speaker via the following path Tel line R1 C1 D1 Pin 1 of IC1 Pin 8 of IC1 C6 T1 C625 Speaker 13 2 Line Interface In talk status L1 RLY output from pin 25 of IC801 changes to low l...

Page 24: ...uator Control The circuit analyzes whether the TX transmit or the RX receive signal is louder and then it processed the signals such that the louder signal is given precedence The Voice Detector provi...

Page 25: ...inside of IC601 4 Voice detector The output of the mic amp Pin 10 of IC601 is supplied to Pin 13 of IC601 as a control signal for the voice detector 5 Attenuator control The attenuator control detect...

Page 26: ...s101 Tel Line 13 5 Tone Detect This circuit is used to sense the status of the line busy tone or dial tone during Auto Redial 13 5 1 Circuit operation D101 Q101 C201 R201 R205 Pin 5 of IC201 Pin 1 of...

Page 27: ...initialize the microcomputer when it incorporates batteries 13 6 2 Circuit operation When the batteries is inserted into the unit then the voltage is shifted by D304 and power is supplied to the CPU T...

Page 28: ...28...

Page 29: ...104 Can t auto redial Check IC201 Q201 No rings Check D1 IC1 and Q1 can t speak with the speakerphone Check IC601 Can t hold Check Q107 Can t speak with the handset Check handset jack Can t speak with...

Page 30: ...14 4 No Ringing Sound When Ring Signal is Input 30...

Page 31: ...15 CABINET AND ELECTRICAL PARTS LOCATION 31...

Page 32: ...32...

Page 33: ...16 ACCESSORY AND PACKING MATERIALS 17 REPLACEMENT PARTS LIST This replacement parts list is KX T2375MXW only 1 RTL Retention Time Limited Note 33...

Page 34: ...is period the assembly will no longer be available 2 Important safety notice Components identified by the mark indicates special characteristics important for safety When replacing any of these compon...

Page 35: ...me Description Remarks PCB1 PQWPT2375MXW MAIN P C BOARD ASS Y RTL ICS IC1 PQVIBA8206F IC S IC201 PQVINJM2904F IC S IC302 PQVIPS3238NT IC S IC303 PQVIPS3327UT IC IC304 PQVIXCF3702P IC IC601 PQVISC77655...

Page 36: ...SI S D305 MA111 DIODE SI D308 1SS119 DIODE SI S D401 MA111 DIODE SI D601 1SS119 DIODE SI S D602 MA111 DIODE SI D907 MA111 DIODE SI LED1 PSVD1SRCT LED S LED801 PSVD1SRCT LED S JACKS JJ101 PQJJ1T020Z JA...

Page 37: ...2TJ103 10k R202 ERJ3GEYJ124 120k R203 ERJ3GEYJ103 10k R204 ERJ3GEYJ394 390k R205 ERJ3GEYJ562 5 6k R206 ERJ3GEYJ183 18k R207 ERJ3GEYJ103 10k R208 ERJ3GEYJ472 4 7k R209 ERJ3GEYJ104 100k R301 ERJ3GEYJ225...

Page 38: ...3GEYJ822 8 2k R602 ERJ3GEYJ122 1 2k R603 ERJ3GEYJ332 3 3k R604 ERJ3GEYJ472 4 7k R605 ERJ3GEYJ225 2 2M R606 ERJ3GEYJ303 30k R607 ERJ3GEYJ683 68k R608 ERJ3GEYJ682 6 8k R609 ERJ3GEYJ335 3 3M R610 ERJ3GEY...

Page 39: ...S C103 ECUV1H103KBV 0 01 C105 ECEA1CU221 220 C106 ECEA1HU100 10 S C107 ECEA1AU331 330 C108 ECUV1C104KBV 0 1 C109 ECUV1H103KBV 0 01 C111 ECUV1H103KBV 0 01 C112 ECUV1C104KBV 0 1 C113 ECUV1H333KBV 0 033...

Page 40: ...1C104KBV 0 1 C617 ECEA1CKS470 47 S C618 ECEA1VU330 33 S C619 ECEA1VKS4R7 4 7 S C620 ECUV1E183KBV 0 018 S C621 ECEA0JKA101 100 C622 ECUV1C104KBV 0 1 C623 ERJ3GEY0R00 0 C624 ECUV1H103KBV 0 01 C625 ECEA1...

Page 41: ...re taken with electronic voltmeter from negative terminal Add 40 mA to telephone line from the loop simulator 2 This schematic diagram may be modified at any time with the development of new technolog...

Page 42: ...eadset Set Headset Set Outgoing Signal The voltage during ON Hook is indicated shows the voltage during OFF Hook KX T2375MXW SCHEMATIC DIAGRAM Battery Low 3 8V 3 9V 5 7V 4 2V 5 8V 4 5V 6 3V 3 7V 3 7V...

Page 43: ...666 R481 R482 R653 R655 J405 J401 R665 C608 R608 R607 R606 R130 R131 R123 C607 C117 R602 BLACK RED RINGER C623 R610 R614 C616 R617 C606 C605 R616 C603 R611 J115 R613 C620 R612 R601 R652 C113 C115 C109...

Page 44: ...E C B E C B E C B E C B B C E B C E B C E IC601 IC903...

Page 45: ...DTMF Hold Music Beep 5 8V 3 7V 3 7V 1 4 5 6 7 9 11 13 14 17 21 24 25 26 28 29 10 18 19 20 27 30 31 32 33 IC651 IC601 IC801 IC903...

Page 46: ...eadset Set Headset Set Outgoing Signal The voltage during ON Hook is indicated shows the voltage during OFF Hook KX T2375MXW SCHEMATIC DIAGRAM Battery Low 3 8V 3 9V 5 7V 4 2V 5 8V 4 5V 6 3V 3 7V 3 7V...

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