Related Manuals for Panasonic KX-T2371MXW
Summary of Contents for Panasonic KX-T2371MXW
- Page 1 ORDER NO. KM40107835C3 Telephone Equipment KX-T2371MXW Integrated Telephone System White Version (for Asia, Middle Near East and Other areas) SPECIFICATIONS...
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Page 2: Location Of Controls
1. LOCATION OF CONTROLS 2. CONNECTION... - Page 3 3. OPERATIONS 3.1. Making Calls...
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Page 4: Special Features
3.2. Answering Calls 4. SPECIAL FEATURES 4.1. For Call Waiting Service Users... - Page 5 4.2. Temporary Tone Dialing (For Rotary Service Users) 4.3. How to Use the PAUSE Button (For Analog PBX Line/Long Distance Service Users) 5. DISASSEMBLY INSTRUCTIONS...
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Page 6: How To Replace Flat Package Ic
Ref. No. Procedure Shown in Fig —. To remove —. Remove —. Lower Cabinet Screws (2.6 × 12)..... (A) × 5 1 ~ 2 Printed Circuit Board Remove the P.C.Board 6. HOW TO REPLACE FLAT PACKAGE IC 6.1. Preparation - SOLDER Sparkle Solder 115A-1, 115B-1 or Almit Solder KR-19, KR-19RMA - Soldering iron Recommended power consumption will be between 30 W to 40 W. - Page 7 the soldering iron. 6.3. 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. 7. CPU DATA...
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Page 8: Terminal Guide Of Ic's Transistors And Diodes
8. TERMINAL GUIDE OF IC’S TRANSISTORS AND DIODES 9. IC BLOCK DIAGRAM... -
Page 9: Option Jumper Table
10. OPTION JUMPER TABLE 10.1. Dialing Mode SW SW Position Pin 14 LOW Tone dialing 10 pps Pin 14 High Pulse dialing 10.2. Flash Key Flash time Option 98 ms 305 ms 600 ms default 11. BLOCK DIAGRAM (IC2) -
Page 10: Circuit Operations
12. CIRCUIT OPERATIONS Note: The circuit diagram may be modified at any time with the development of new technology. 12.1. 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 via the diode bridge D1 and Q2 is On Q1 is ON (OFF-HOOK condition). - Page 11 wave. The signal flow to the line is as follows. Pin 11 of IC1 Tel Line. The DTMF signal is sent to the line via the following path. Q9 and 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.
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Page 12: Ringer Circuit
12.3. Ringer Circuit Circuit Operation: The bell signal passes through C1 (R1) supplying power to pin 1 of IC2. The ring signal is output from Pin 5 of IC2, and its volume is adjusted in 3 steps (H-L-OFF) by SW3 then impressed on the ceramic sound generator, and so is generated. Output frequency is controlled by R2 and C3 following below formula. -
Page 13: Receiving Circuit (Rx)
12.6. Receiving Circuit (Rx) Receiving signal from the line go through Handset speaker. * Q4 and Q6 is amplifier for the Receiving signal. 13. TROUBLE SHOOTING GUIDE 13.1. Service Hints SYMPTOM CURE No Tone Dialing. Check IC1, Q3, Q9, R37, R38, R34 and R35. Dead. -
Page 14: Problems With The Handset
13.3. Problems With the Handset... -
Page 15: Cabinet And Electrical Parts Location
13.4. Tone Dialing Problems 13.5. Problems With Ringer Check R1, C1, IC2, R3, C37, R2, C3, C2. 13.6. How to Check the IC1 (Scanning to the key) 14. CABINET AND ELECTRICAL PARTS LOCATION... -
Page 17: Accessory And Packing Materials
15. ACCESSORY AND PACKING MATERIALS 16. REPLACEMENT PARTS LIST This replacement parts list is KX-T2371MXW only. 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. - Page 18 longer be available. 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. The S mark indicates service standard parts and may differ from production parts.
- Page 20 Ref. No. Part No. Part Name & Description Remarks PCB1 PQWPT2371MXW MAIN P.C BOARD ASS'Y (RTL) (ICS) C1CA00000250 PQVILS1240A (TRANSISTORS) 2SA1625 TRANSISTOR(SI) PQVT2N6517CA TRANSISTOR(SI) 2SC2120 TRANSISTOR(SI) 2SD1819A TRANSISTOR(SI) 2SD1819A TRANSISTOR(SI) 2SD1819A TRANSISTOR(SI) 2SD1819A TRANSISTOR(SI) PQVTFB1A4M TRANSISTOR(SI) 2SD1819A TRANSISTOR(SI) UN5113 TRANSISTOR(SI) 2SD1819A TRANSISTOR(SI) 2SD1819A...
- Page 21 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ152 1.5k ERJ3GEYJ560 ERDS1TJ150 ERJ3GEYJ103 ERJ3GEYJ475 4.7M ERJ3GEYJ560 ERJ3GEYJ392 3.9k ERJ3GEYJ333 ERJ3GEYJ224 220k ERJ3GEYJ153 ERJ3GEYJ472 4.7k ERJ3GEYJ335 3.3M ERJ3GEYJ272 2.7k ERJ3GEYJ331 ERJ3GEYJ183 ERJ3GEYJ334 330k ERJ3GEYJ561 ERJ3GEYJ181 ERJ3GEYJ272 2.7k ERJ3GEYJ393 ERJ3GEYJ224 220k ERJ3GEYJ103 ERJ3GEYJ185 1.8M...
- Page 22 Ref. No. Part No. Part Name & Description Remarks ECUV1H103KBV 0.01 ECEA1HU100 ECEA1EU470 ECUV1H183KBV 0.018 ECEA1AU221 ECUV1C104KBV ECUV1H102KBV 0.001 ECUV1H271JCV 270p ECUV1C104KBV ECUV1C104KBV ECUV1C104KBV ECEA1HU100 ECUV1H333KBV 0.033 ECUV1H103KBV 0.01 ECUV1H822KBV 0.0082 ECUV1H101JCV 100p ECUV1C104KBV ECUV1H561JCV 560p ECUV1H103KBV 0.01 ECEA0JWA102 1000 ECUV1H330JCV ECUV1H330JCV ECUV1H222KBV...
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Page 23: For Schematic Diagram
17. FOR SCHEMATIC DIAGRAM (SCHEMATIC DIAGRAM) 1. DC voltage measurements are 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 technology. - Page 24 PROGRAM PAUSE REDIAL FLASH AUTO SHARP Q182 Q183...
- Page 25 SW25 E C B C186 R111 JJ102 C181 R184 C187 JJ101 POS1 E C B E C B [BREAK 60%] [BREAK 66%] RINGER H/S_JACK BLACK...
- Page 26 TRANSISTOR VOLTAGE CHECK (MAIN PCB) VOLTAGE CHECK (IC2) MODE (TALK) (BELL) MODE (TALK) (BELL) PIN NO PARTS NO Emitter Collector Base Emitter Collector Base 7.69 32.0(AC) 8.43 8.25 7.72 0.56 0.45 0.37 8.77 23.1(AC) 0.00 0.10 0.65 0.00 0.37 0.34 8.41 23.1(AC) 5.08...