2 FOR SERVICE TECHNICIANS 12.1. NO OPERATION (Check POWER SUPPLY BOARD, 3 CAUTION MAIN BOARD) 3.1. SAFETY PRECAUTIONS 12.2. NO DIAL TONE (KX-TES824LA, MAIN BOARD OF KX- 3.2. INSULATION RESISTANCE TEST TEM824LA) 3.3. BATTERY CAUTION 12.3. CANNOT DIAL (KX-TES824LA, MAIN BOARD OF KX- 3.4.
25.9. CABINET AND ELECTRICAL PARTS 21.6. SUB 25.10. ACCESSORIES AND PACKING MATERIALS 21.7. POWER SUPPLY 25.11. REPLACEMENT PARTS LIST (KX-TE82480X) 22 PRINTED CIRCUIT BOARD (KX-TES824LA/KX-TEM824LA) 114 25.12. FOR THE SCHEMATIC DIAGRAM 22.1. MAIN BOARD 25.13. SCHEMATIC DIAGRAM (KX-TE82480X) 22.2. SUB BOARD 25.14.
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KX-TES824LA / KX-TEM824LA / 28.5. TROUBLESHOOTING GUIDE 29.4. CIRCUIT OPERATIONS 28.6. IC DATA 29.5. TROUBLESHOOTING GUIDE 28.7. TERMINAL GUIDE OF ICS, TRANSISTORS AND 29.6. IC DATA DIODES 29.7. TERMINAL GUIDE OF ICS, TRANSISTORS AND 28.8. ACCESSORIES AND PACKING MATERIALS DIODES 28.9.
KX-TES824LA / KX-TEM824LA / 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. 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).
KX-TES824LA / KX-TEM824LA / 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.
KX-TES824LA / KX-TEM824LA / 3 CAUTION 3.1. SAFETY PRECAUTIONS 1. Before servicing, unplug the power cord to prevent an electric shock. 2. When replacing parts, use only the manufacturer´s recommended components for safety. 3. Check the condition of the power cord. Replace if wear or damage is evident.
KX-TES824LA / KX-TEM824LA / 4 SPECIFICATIONS 4.1. GENERAL DESCRIPTION Control Bus Original bus (16-bit, 24 MHz) Switching Space Division CMOS Crosspoint Switch Power Input 100 V AC to 240 V AC, 1.5A to 0.75A, 50 Hz/60Hz External Battery +24 V DC (+12 V DC x 2)
KX-TES824LA / KX-TEM824LA / 4.3.2. Maximum Cards Terminal Equipment ltem KX-TES824 KX-TEM824 Extension Terminal 3-Port Analogue CO Line and 8-Port Hybrid Extension Card 2-Port Analogue CO Line and 8-Port Single Line Telephone Extension Card 8-Port Single Line Telephone Extension Card...
KX-TES824LA / KX-TEM824LA / 5.2. SYSTEM CONNECTION DIAGRAM • • • • Connect a display-equipped proprietary telephone (PT) to extension jack 01, as this extension is automatically designated as the manager extension.
KX-TES824LA / KX-TEM824LA / 8 DISASSEMBLY INSTRUCTIONS 8.1. DISASSEMBLY INSTRUCTION 1. Loosen the top cover screw (A). 2. Remove the top front cover. Note The screw cannot be removed front the cover. 3. Remove the 2 bottom-cover screws (B). 4. Open the bottom front cover.
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KX-TES824LA / KX-TEM824LA / 5. Remove the 2 screws (A). 6. Remove the power supply board cover. 7. Pull out the 4 connectors. 8. Remove the 1 screw (D). 9. Remove the power supply board. 10. Pull out the 1 connector.
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KX-TES824LA / KX-TEM824LA / Procedure: • • • • Insert the SW CABLE into AC POWER SWICH. Caution: • • • • Be sure each colored wire is inserted to the correct lug (very important).
KX-TES824LA / KX-TEM824LA / 10 EXPLANATION OF BLOCK DIAGRAM 10.1. MAIN UNIT (KX-TES824LA/KX-TEM824LA) 10.1.1. Power Supply Circuit This power supply unit is a switching power supply. Power supply unit supplies DC voltage (+27V,+15V,-15V,3.3V) to main board and other optional cards. And this unit has an adaptor circuit to back up battery. And this unit amplified the BELL signal (20/25Hz sign wave outputted from the ASIC) and supply bell signal to the telephone.
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KX-TES824LA / KX-TEM824LA / 10.1.13. USB Circuit The circuit which makes communication possible by PC and 1.1 standards by the USB controller in ASIC. 10.1.14. OGM Circuit 4M connected to ASIC by the memory controller in ASIC A maximum of 3-minute storing of OGM is possible to a serial flash Circuit.
KX-TES824LA / KX-TEM824LA / 11 CIRCUIT OPERATION 11.1. POWER SUPPY CIRCUIT 11.1.1. The function of the power unit are listed below AC-DC Inverter Function This function isolates and transduces the AC input voltage to DC input and output of DC27V.
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KX-TES824LA / KX-TEM824LA / 11.1.2. Control Section 1) AC-DC Inverter Function The AC input voltage is rectified and smoothed by D10-13 and C5. The obtained DC voltage is converted into a rectangular wave by the switching transistor Q1, then isolated and transduced by T1. This converted rectangular wave is rectified and smoothed by D101 and C101 to output DC27V.
KX-TES824LA / KX-TEM824LA / 11.2. CO INTERFACE CIRCUIT 11.2.1. Composition This is composed of the following circuit: 1) Bell signal detection 2) DC loop formation circuit 3) Pulse dial transmission circuit 4) CALL ID interface circuit 5) COL bidirectional amplifier circuit 1) Bell signal detection When CO line is idle, photo coupler PC1, PC2 are OFF.
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KX-TES824LA / KX-TEM824LA / 2) DC loop formation circuit In the off hook status, PC5 is ON. DC loop path: Tip→L1→D1→D2→D3→Q10(E-C)→Q1(C-E)→R9→R8→D3→L1→Ring At this time, the output of the photo coupler PC1 changes level from High to low. Ring→L1→D3→R8→R9→Q1(E-C)→Q10(C-E)→D3→D2→D1→L1→Tip At this time, the output of the photo coupler PC2 changes level from High to low.
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KX-TES824LA / KX-TEM824LA / 4) CALL ID interface circuit It is insulated by the transformer in a COL circuit, and the call ID signal inputted from outside line is transmitted to a CALLID option card. The flow of a CALLID signal Tip→L1→R2→PC1(1-2)→C3→T2→R5→L1→Ring...
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KX-TES824LA / KX-TEM824LA / 1) Conference switch Normally, pin 6 of the analog switch IC2 is low level, but during conferences, this pin becomes high level. Because, during conferences, it should compensate the return loss by connecting the balance network BN2 and the balance network BN3 in parallel.
KX-TES824LA / KX-TEM824LA / 11.3. CROSS POINT SWITCH CIRCUIT 11.3.1. Composition The cross point circuit composed of three cross point switch IC´s (IC600 and 601:8X16, IC602:4X8). *In case of KX-TEM824, the system add more cross point switch IC´s (IC500:8X16, IC501:8X8, IC502:4X8) which are in KX- TE82483.
KX-TES824LA / KX-TEM824LA / 11.4. INTERCOM CIRCUIT 11.4.1. INTERCOM CIRCUIT 1) Composition This is composed of the following circuits: a) +15V power source for the extension telephones b) Hook detect for SLT and pulse dialing detect c) Bell ring trip section...
KX-TES824LA / KX-TEM824LA / 11.5. POWER FAILURE THROUGH CALL SWITCHING CIRCUIT 11.5.1. Circuit operation If an AC power failure lasts longer than one second (momentary power failure), the COL is directly connected to the extension. The COL1 will be connected with EXT101.
KX-TES824LA / KX-TEM824LA / 11.6. DATA COMMUNICATION CIRCUIT 11.6.1. Composition This circuit is composed of the ASIC and the data communication interface circuits for the ICM circuit. 11.6.2. Circuit Operation 1) Data Communication of ASIC The APT I/f module is built into the CPU. It is for the APT communication of one block (8ch) and has the module of three blocks (24ch) at maximum.
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KX-TES824LA / KX-TEM824LA / 2) Data Communication of ASIC and PITS When ASIC send the request signal to the proprietary telephone and after receiving the key input information (19 pulses) from the proprietary telephone and sending data (47 pulses) for LED control. 4bit CPU will receive acknowledge signal from the proprietary telephone.
KX-TES824LA / KX-TEM824LA / 11.7. CONTROL CIRCUIT 11.7.1. Composition The control block is composed of the 16bit CPU(IC700: operating on 23.966MHz system clock from the 47.936MHz external crystal oscillator), the 8Mbit Flash ROM, the 4Mbit SRAM, and the ASIC for the I/O Port to control the outside line.
KX-TES824LA / KX-TEM824LA / 11.8. TONE GENERATOR CIRCUIT 11.8.1. Composition This system has three different tones, 620Hz, 440Hz, 350Hz. ASIC make the 350Hz, 620Hz and 440Hz square wave signals. The 350Hz and 440Hz square wave signals are shaped by the low pass filter to sin wave and become tone 1.
KX-TES824LA / KX-TEM824LA / 11.9. DTMF GENERATOR CIRCUIT 11.9.1. Composition DTMF generator is controlled by the 8 bit I/O data of CO G/A. DTMF tone is sent to CO line. DTMF GENERATOR TRANSMIT SIGNAL DISABLE...
KX-TES824LA / KX-TEM824LA / 11.10. DTMF RECEIVER CIRCUIT 11.10.1. Composition The DTMF receiver circuit is composes of four DTMF receivers. IC613 and IC614 are used for the DTMF receivers from SLT connected to the extension. The DTMF signal is the 4bit parallel data and read by ASIC.
KX-TES824LA / KX-TEM824LA / 11.11. INT CALLID INTERFACE CIRCUIT By using the DSP built into the ASIC, it is possible to produce CALLID signal and send it through the cross point to each extension. The CALLID signal can be switched between FSK and DTMF. There are three sources of the extension CALL ID in the system.
KX-TES824LA / KX-TEM824LA / 11.13. USB INTERFACE CIRCUIT This unit have one USB port for using PC programming. ASIC have USB 1.1 controller inside, so this unit make up USB interface only ASIC and USB connector. 11.14. OGM INTERFACE CIRCUIT The TES/TEM824 model incorporates the functions of OGM, CNG and DTMF detection.
KX-TES824LA / KX-TEM824LA / 11.15. RINGING SIGNAL GENERATOR CIRCUIT This section generates this ringing signal for the single line telephone. A 25Hz square wave is generated by the ASIC and sent to low pass filter and ringing signal amplifier circuit and stepped by BELL transformer, and then passed through the ringing signal switching relay to the single line telephone.
KX-TES824LA / KX-TEM824LA / 11.17. DOORPHONE CARD INTERFACE (KX-TE82461X) This mounts a connector to connect the door phone card. Power at +15V, 3.3V and VAG are supplied to the door phone. Also, two busses are supplied from the cross point to the door phone card.
KX-TES824LA / KX-TEM824LA / 11.19. BUILT in VOICE MESSAGE CARD INTERFACE (KX-TE82492X) The CN707 is the interface connector for the option card KX-TE82492 that has the MESSAGE of 2ch. The MESSAGE can be recorded from the external line or the extension. The recording time is 60 minutes for 1CH at maximum.
KX-TES824LA / KX-TEM824LA / 12.4. CANNOT CALL EXTENSION (KX-TES824LA, MAIN BOARD OF KX- TEM824LA) 12.5. CANNOT USE PROPRIETARY TELEPHONE (KX-TES824LA, MAIN BOARD OF KX-TEM824LA) 12.6. CANNOT RECEIVE INCOMING CALL (KX-TES824LA, MAIN BOARD OF KX-TEM824LA)
KX-TES824LA / KX-TEM824LA / 12.16. CANNOT RECEIVE CALL DIAL TONE (SUB BOARD OF KX-TEM824LA) 12.17. CANNOT SEND A HOLD ON MUSIC (SUB BOARD OF KX-TEM824LA)
KX-TES824LA / KX-TEM824LA / 13 IC DATA 13.1. IC700 PIN No Pin Name Function DTMF Rx Data[0] DTMF Rx Data[1] DTMF Rx Data[2] DTMF Rx Data[3] STD1 DTMF-R1 Status STD2 DTMF-R2 Status TOE1 DTMF-R1 Data output Enable TOE2 DTMF-R2 Data output Enable...
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KX-TES824LA / KX-TEM824LA / PIN No Pin Name Function MOH_SW External B6M Input BREAK Line 1.5V Disconnection, 0: Disconnected, 1: Connected IN232C Monitor Port for RS232C...
KX-TES824LA / KX-TEM824LA / 13.2. IC6 PIN No Pin Name Function CDT1 Current Detect1 CDT2 Current Detect2 CDT3 Current Detect3 DET_DOOR Door Phone Card Detect NINT_AC AC Power-off Detection Signal NINT_DC DC Power-off Detection Signal OGM_SW Connected to the extension BLRLY BELL Disconnection;...
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KX-TES824LA / KX-TEM824LA / PIN No Pin Name Function Pulse Dial Dial Shunt SHUNT1 Receive Mute PAD1 3dB PAD BELLA1 Bell Detect A BELLB1 Bell Detect B DET_CID1 CID Card Detect(1AP) DET_CID2 CID Card Detect(2AP) DET_CID3 CID Card Detect(3AP) DET_TAM...
KX-TES824LA / KX-TEM824LA / 15 HOW TO REPLACE A FLAT PACKAGE IC Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
KX-TES824LA / KX-TEM824LA / 19 REPLACEMENT PARTS Ref. Part No. Part Name & Description Remarks LIST (KX-TES824LA/KX- PSHR1146Z SPACER, LED PSHR1336Z SPACER, PCB HOLDER PA66 TEM824LA) PSJS02Q11Z CONNECTOR, 2P PSJS11P24Z CONNECTOR, 11P PSKE1020X1 COVER, POWER BOARD Note: PSKF1030S1 CABINET COVER (KX-TES824LA)
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks IC610 PQVINJM4558V Q209 PQVTDTC143E TRANSISTOR(SI) IC611 PQVINJM4558V Q209A 2SD1819A TRANSISTOR(SI) IC612 PQVINJM4558V Q209B 2SD1819A TRANSISTOR(SI) IC613 C1CB00001876 Q209C 2SD1819A TRANSISTOR(SI)
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks D204F MA8039 DIODE(SI) RA603 D1H81034A010 RESISTOR ARRAY, 10K D204G MA8039 DIODE(SI) RA700 D1H81034A010 RESISTOR ARRAY, 68 D204H MA8039 DIODE(SI) RA701...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L716 PFVF1B221SB CERAMIC FILTER PC4A PQVIP27011M3 PHOTO COUPER L717 PFVF1B221SB CERAMIC FILTER PC4B PQVIP27011M3 PHOTO COUPER L718 PFVF1B221SB CERAMIC FILTER...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C16B ECUV1H101JCV 100P C206B ECUV1C393KBV 0.039 C16C ECUV1H101JCV 100P C206C ECUV1C393KBV 0.039 C17A ECUV1H101JCV 100P C206D ECUV1C393KBV 0.039 C17B ECUV1H101JCV...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C637 ECUV1C104KBV C729 ECUV1C104ZFV C640 ECUV1C105KB C730 PQCUV1A225ZF C641 ECUV1C105KB C731 ECUV1A105ZFV C642 ECUV1H471JCV 470P C732 ECUV1C104ZFV C643 ECUV1C105KB C733...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C826 ECUV1H103KBV 0.01 C902 ECUV1H103KBV 0.01 C827 ECUV1H103KBV 0.01 C903 ECUV1H103KBV 0.01 C828 ECUV1H103KBV 0.01 C904 ECUV1H103KBV 0.01 C829 ECUV1H103KBV 0.01...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks ERJ1WYJ223 R31C ERJ3GEYJ304 300K ERJ1WYJ223 R34A ERJ3EKF1003 100K ERJ3GEYJ683 R34B ERJ3EKF1003 100K ERJ3GEYJ683 R34C ERJ3EKF1003 100K ERJ3GEYJ683 R35A ERJ3EKF1003 100K ERJ3GEYJ392 3.9K...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R201F ERJ3GEYJ682 6.8K R210G ERJ3GEYJ333 R201G ERJ3GEYJ682 6.8K R210H ERJ3GEYJ333 R201H ERJ3GEYJ682 6.8K R211A ERJ3GEYJ123 R202A ERJ14YJ220 R211B ERJ3GEYJ123 R202B...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R235 ERJ3GEYJ222 2.2K R587 ERJ3GEYJ152 1.5K R237 ERJ3GEYJ472 4.7K R588 ERJ3GEYJ473 R238 ERJ3GEYJ102 R589 ERJ3GEYJ473 R239 ERJ3GEYJ473 R590 ERJ3GEYJ473 R240...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R738 ERJ6GEYJ515 5.1M D104 PSVDHZ30P DIODE(SI) R739 ERJ3GEYJ683 D111 PSVDHZS6 DIODE(SI) R740 ERJ3GEYJ683 D201 PSVDHZS33 DIODE(SI) R741 ERJ3GEYJ683 D202 PFVDERA9102...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C101 PSCEA35ZL470 R204 ERJ3GEYJ222 2.2K C108 GRM426B224K5 0.22 R205 PQ4R10XJ153 C109 DEHR33A331 330P R206 ERX2SJR10 C110 GRM39B104K50 R207 ERX2SJR10 C151...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks IC511 C1CB00001876 U200B PSVTUMX1NTN TRANSISTOR(SI) (TRANSISTORS) U200C PSVTUMX1NTN TRANSISTOR(SI) 2SC4731S TRANSISTOR(SI) U200D PSVTUMX1NTN TRANSISTOR(SI) 2SC4731S TRANSISTOR(SI) U200E PSVTUMX1NTN TRANSISTOR(SI) 2SC4731S...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks DA200F MA142WKTX DIODE(SI) PC2A PQVIP27011M3 PHOTO COUPLER DA200G MA142WKTX DIODE(SI) PC2B PQVIP27011M3 PHOTO COUPLER DA200H MA142WKTX DIODE(SI) PC2C PQVIP27011M3 PHOTO COUPLER...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C14C ECUV1C563KBV 0.056 C206A ECUV1C393KBV 0.039 C15A ECUV1C563KBV 0.056 C206B ECUV1C393KBV 0.039 C15B ECUV1C563KBV 0.056 C206C ECUV1C393KBV 0.039 C15C ECUV1C563KBV 0.056...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C552 ECUV1H104ZFV ERJ3GEYJ683 C555 ECUV1H104ZFV PQ4R18XJ220 C556 ECUV1A105ZFV PQ4R18XJ220 C558 ECUV1H104ZFV PQ4R18XJ220 C801 ECUV1H103KBV 0.01 PQ4R10XJ681 C802 ECUV1H103KBV 0.01 PQ4R10XJ681...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R29A ERJ3GEY0R00 R200H ERJ3GEYJ682 6.8K R29B ERJ3GEY0R00 R201A ERJ3GEYJ682 6.8K R29C ERJ3GEY0R00 R201B ERJ3GEYJ682 6.8K R30A ERJ3GEY0R00 R201C ERJ3GEYJ682 6.8K...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R210A ERJ3GEYJ333 R226 ERJ3GEYJ103 R210B ERJ3GEYJ333 R227 ERJ3GEYJ682 6.8K R210C ERJ3GEYJ333 R228 ERJ3GEYJ682 6.8K R210D ERJ3GEYJ333 R229 ERJ3GEYJ221 R210E ERJ3GEYJ333...
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KX-TES824LA / KX-TEM824LA / 20 FOR THE SCHEMATIC DIAGRAM Note: 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
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KX-TES824LA / KX-TEM824LA / 23.1. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED...
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KX-TES824LA / KX-TEM824LA / 23.2. LOCATION OF OPTIONAL CARDS 23.2.1. 4-Port Doorphone Card (KX-TE82461X) Function Supports the connection of 4 doorphones and 4 dooropeners. 1. Loosen the screws and open the top and bottom front covers. 2. Attach the 4-Port Doorphone Card to the main unit, connect the cord to the Doorphone Card Connector and secure the screw.
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KX-TES824LA / KX-TEM824LA / 23.3. DOORPHONE/DOOROPENER CARD BLOCK DIAGRAM +15V DOOR1 DOOR2 Power TONE Serge D[7:0] DOOR_SW1 BUSY1 A[2:1] DON1 Door Detect DHK1 nCS,nRD,nWR Hook Detect nRESET IC11 IC6, IC7, IC8 DOPN1 Door Opener Relay #A DOPN2 +15V Door Opener Relay #B +3.3V...
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KX-TES824LA / KX-TEM824LA / 23.4. EXPLANATION OF BLOCK DIAGRAM/CIRCUIT OPERATIONS 23.4.1. OPTION CARD (KX-TE82461X) 23.4.1.1. This doorphone/door opener card is composed of the control interface with KX-TES824/KX-TEM824 and four doorphone interfaces and four dooropener interfaces section. 1) Doorphone section This card has four doorphone interfaces, but this system has only two door phone intercom paths.
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KX-TES824LA / KX-TEM824LA / 23.5. TROUBLESHOOTING GUIDE 23.5.1. Can Not Call From Doorphone 23.5.2. Can Not Talk 23.5.3. Can Not Use Dooropener...
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KX-TES824LA / KX-TEM824LA / 23.6. IC DATA 23.6.1. IC6, IC7, IC8 Pin No. Pin Name Description DHK1 DOOR Hook detection DHK2 DOOR Hook detection DHK3 DOOR Hook detection DHK4 DOOR Hook detection DCN1 DOOR Phone Connection Detection DCN2 DOOR Phone Connection Detection...
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KX-TES824LA / KX-TEM824LA / 23.7. TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES...
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KX-TES824LA / KX-TEM824LA / 23.9. REPLACEMENT PARTS LIST 23.9.2. MAIN BOARD PARTS (KX-TE82461X) Ref. Part No. Part Name & Description Remarks Note: (ICS) 1. RTL (Retention Time Limited) IC1A PQVINJM2904V IC1B PQVINJM2904V The marking (RTL) indicates that the Retention Time is...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PQLE106 COIL ECUV1C104ZFV PQLE106 COIL ECUV1A106ZF PQLE106 COIL ECUV1H104ZFV PQLE106 COIL F2G1E1010011 (JACK) ECUV1H104ZFV PSJJ2T004Z JACK, TEL C101 ECUV1H220JCV (TRANSFORMERS)
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R17A ERJ14YJ151 R22A ERJ3GEYJ181 R17B ERJ14YJ151 R22B ERJ3GEYJ181 R17C ERJ14YJ151 R22C ERJ3GEYJ181 R17D ERJ14YJ151 R22D ERJ3GEYJ181 R19A ERJ3GEYJ103 R23A ERJ3GEYJ103...
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KX-TES824LA / KX-TEM824LA / 24.1. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED...
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KX-TES824LA / KX-TEM824LA / 24.2. LOCATION OF OPTIONAL CARDS 24.2.1. 8-Port SLT Extension Card (KX-TE82474X) Function Adds 8 single line telephone (SLT) extensions on the basic systems of KX-TES824/KX-TEM824. Installing KX-TE82474 to KX-TES824 1. Loosen the screws and open the top and bottom front covers.
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KX-TES824LA / KX-TEM824LA / 24.2.2. Installing KX-TE82474X on 3-Port Analogue CO Line and 8-Port Hybrid Extension Card (KX-TE82483X) installed to KX-TES824LA Note Install the KX-TE82474 on top of the KX-TE82483. 1. Loosen the screws and open the top and bottom front covers.
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KX-TES824LA / KX-TEM824LA / 24.2.3. Installing KX-TE82474X to KX-TEM824LA 1. Loosen the screws and open the top and bottom front covers. 2. Remove the front panel. 3. Attach the 2 extension connectors to the main unit, install the card as shown below, and secure the 3 screws.
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KX-TES824LA / KX-TEM824LA / 24.4.2. Circuit Operation 24.4.2.1. Cross Point Switch Circuit 24.4.2.1.1. Composition The cross point circuit composed of three cross point switch IC´s. (IC701:8X16, IC702:8X8, IC703:4X8) 1) Cross Point Switch IC Operation The cross point SW (IC701) contains a 8X16 array of cross point switches along with a 7 to 128 line decoder and latch circuits.
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KX-TES824LA / KX-TEM824LA / 24.4.3. Intercom Circuit 1) Composition This is composed of the following circuits: a) +15V power source for the extension telephones b) Hook detect for SLT and pulse dialing detect c) Bell ring trip section 2) Circuit operation a) Power supply to the telephone With the telephone off hook, a DC loop is formed, and current is supplied to the telephone.
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KX-TES824LA / KX-TEM824LA / c) Bell ringing trip section When the telephone is a signal line telephone, extension calling is executed by means of a ringing signal. When the ringing signal is supplied, RL201 turns ON and the current flows are as follows: Bell transformer →...
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KX-TES824LA / KX-TEM824LA / 24.4.5. INT CALLID Interface Circuit By using the DSP built into the ASIC, it is possible to produce CALLID signal and send it through the cross point to each extension. The CALLID signal can be switched between FSK and DTMF. There are three sources of the extension CALL ID in the system.
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KX-TES824LA / KX-TEM824LA / 24.5. TROUBLESHOOTING GUIDE 24.5.1. No Dial Tone 24.5.2. Cannot Dial...
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KX-TES824LA / KX-TEM824LA / 24.6. IC DATA 24.6.1. IC700 PIN No Pin Name Function BELL17 Ext BELL Control 17 BELL18 Ext BELL Control 18 BELL19 Ext BELL Control 19 BELL20 Ext BELL Control 20 BELL21 Ext BELL Control 21 BELL22...
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KX-TES824LA / KX-TEM824LA / PIN No Pin Name Function DTMF Rx Data[0] DTMF Rx Data[1] DTMF Rx Data[2] DTMF Rx Data[3] STD7 DTMF-R1 Status STD8 DTMF-R2 Status TOE7 DTMF-R1 Data output Enable TOE8 DTMF-R2 Data output Enable Reserve not used...
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KX-TES824LA / KX-TEM824LA / 24.8. CABINET AND ELECTRICAL PARTS 24.9. ACCESSORIES AND PACKING MATERIALS...
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KX-TES824LA / KX-TEM824LA / 24.10. REPLACEMENT PARTS LIST Ref. Part No. Part Name & Description Remarks (KX-TE82474X) XYN3+F8 SCREW PSPN1070Z CUSHION Note: PSPP1045Z PROTECTION COVER PSPP1052Z PROTECTION COVER 1. RTL (Retention Time Limited) PSZKTE82474X GIFT BOX The marking (RTL) indicates that the Retention Time is...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks D202B MA8036H DIODE(SI) RL201A PQSL41Z RELAY D202C MA8036H DIODE(SI) RL201B PQSL41Z RELAY D202D MA8036H DIODE(SI) RL201C PQSL41Z RELAY D202E MA8036H...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C206E ECUV1C393KBV 0.039 C912 ECUV1H103KBV 0.01 C206F ECUV1C393KBV 0.039 C913 ECUV1H103KBV 0.01 C206G ECUV1C393KBV 0.039 C914 ECUV1H103KBV 0.01 C206H ECUV1C393KBV 0.039...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R206A ERJ1WYJ102 R219B ERJ3GEYJ102 R206B ERJ1WYJ102 R219C ERJ3GEYJ102 R206C ERJ1WYJ102 R219D ERJ3GEYJ102 R206D ERJ1WYJ102 R219E ERJ3GEYJ102 R206E ERJ1WYJ102 R219F ERJ3GEYJ102...
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KX-TES824LA / KX-TEM824LA / 24.11. FOR THE SCHEMATIC DIAGRAM Note: 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
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KX-TES824LA / KX-TEM824LA / 25 KX-TE82480X (2-PORT ANALOGUE CO LINE AND 8- PORT SLT EXTENSION CARD)
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KX-TES824LA / KX-TEM824LA / 25.1. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED...
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KX-TES824LA / KX-TEM824LA / 25.2. LOCATION OF OPTIONAL CARDS 25.2.1. 2-Port Analogue CO Line and 8-Port SLT Extension Card (KX-TE82480X) Function Adds 2 outside (CO) lines and 8 single line telephone (SLT) extensions on the basic system KX-TES824/KX-TEM824. Installing KX-TE82480 to KX-TES824 1.
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KX-TES824LA / KX-TEM824LA / 25.2.2. Installing KX-TE82480X on 3-Port Analogue CO Line and 8-Port Hybrid Extension Card (KX-TE82483X) installed to KX-TES824LA Note Install the KX-TE82480 on top of the KX-TE82483. 1. Loosen the screws and open the top and bottom front covers.
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KX-TES824LA / KX-TEM824LA / 5. Insert the modular plugs of the telephone line cords (2-conductor wiring) into the card’s modular CO ports. 6. Connect the line cords to the terminal board or the modular jacks from the telephone company. 7. Insert the modular plugs of the telephone line cords (2-conductor wiring) into the card’s modular extension jacks.
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KX-TES824LA / KX-TEM824LA / 25.2.3. Installing KX-TE82480X to KX-TEM824LA 1. Loosen the screws and open the top and bottom front covers. 2. Using cutting pliers, cut the 6 parts marked with circles, and remove the front panel as shown below.
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KX-TES824LA / KX-TEM824LA / 25.5. CIRCUIT OPERATION 25.5.1. CO Interface Circuit 25.5.1.1. Composition This is composed of the following circuit: 1) Bell signal detection 2) DC loop formation circuit 3) Pulse dial transmission circuit 4) CALL ID interface circuit 5) COL bidirectional amplifier circuit 1) Bell signal detection When CO line is idle, photo coupler PC1, PC2 are OFF.
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KX-TES824LA / KX-TEM824LA / 2) DC loop formation circuit In the off hook status, PC5 is ON. DC loop path: Tip→L1→D1→D2→D3→Q10(E-C)→Q1(C-E)→R9→R8→D3→L1→Ring At this time, the output of the photo coupler PC1 changes level from High to low. Ring→L1→D3→R8→R9→Q1(E-C)→Q10(C-E)→D3→D2→D1→L1→Tip At this time, the output of the photo coupler PC2 changes level from High to low.
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KX-TES824LA / KX-TEM824LA / 4) CALL ID interface circuit It is insulated by the transformer in a COL circuit, and the call ID signal inputted from outside line is transmitted to a CALLID option card. The flow of a CALLID signal Tip→L1→R2→PC1(1-2)→C3→T2→R5→L1→Ring...
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KX-TES824LA / KX-TEM824LA / 1) Conference switch Normally, pin 6 of the analog switch IC2 is low level, but during conferences, this pin becomes high level. Because, during conferences, it should compensate the return loss by connecting the balance network BN2 and the balance network BN3 in parallel.
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KX-TES824LA / KX-TEM824LA / 25.5.2. Cross Point Switch Circuit 25.5.2.1. Composition The cross point circuit composed of three cross point switch IC´s. (IC701:8X16, IC702:8X8, IC703:4X8) 1) Cross Point Switch IC Operation The cross point SW (IC701) contains a 8X16 array of cross point switches along with a 7 to 128 line decoder and latch circuits.
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KX-TES824LA / KX-TEM824LA / 25.5.3. Intercom Circuit 1) Composition This is composed of the following circuits: a) +15V power source for the extension telephones b) Hook detect for SLT and pulse dialing detect c) Bell ring trip section 2) Circuit operation a) Power supply to the telephone With the telephone off hook, a DC loop is formed, and current is supplied to the telephone.
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KX-TES824LA / KX-TEM824LA / c) Bell ringing trip section When the telephone is a signal line telephone, extension calling is executed by means of a ringing signal. When the ringing signal is supplied, RL201 turns ON and the current flows are as follows: Bell transformer →...
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KX-TES824LA / KX-TEM824LA / 25.5.5. DTMF Receiver Circuit 25.5.5.1. Composition The DTMF receiver circuit is composes of two DTMF receivers. IC704 and IC705 are used for the DTMF receivers from SLT connected to the extension. The DTMF signal is the 4bit parallel data and read by ASIC.
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KX-TES824LA / KX-TEM824LA / 25.6. TROUBLESHOOTING GUIDE 25.6.1. No Dial Tone 25.6.2. Cannot Dial...
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KX-TES824LA / KX-TEM824LA / 25.6.6. Cannot Receive Call Dial Tone 25.6.7. Cannot Send A Hold On Music...
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KX-TES824LA / KX-TEM824LA / 25.7. IC DATA 25.7.1. IC700 PIN No Pin Name Function BELL17 Ext BELL Control 17 BELL18 Ext BELL Control 18 BELL19 Ext BELL Control 19 BELL20 Ext BELL Control 20 BELL21 Ext BELL Control 21 BELL22...
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KX-TES824LA / KX-TEM824LA / PIN No Pin Name Function DTMF Rx Data[0] DTMF Rx Data[1] DTMF Rx Data[2] DTMF Rx Data[3] STD7 DTMF-R1 Status STD8 DTMF-R2 Status TOE7 DTMF-R1 Data output Enable TOE8 DTMF-R2 Data output Enable Reserve not used...
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KX-TES824LA / KX-TEM824LA / 25.9. CABINET AND ELECTRICAL PARTS 25.10. ACCESSORIES AND PACKING MATERIALS...
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KX-TES824LA / KX-TEM824LA / 25.11. REPLACEMENT PARTS LIST Ref. Part No. Part Name & Description Remarks (KX-TE82480X) XYN3+F8 SCREW PSPN1070Z CUSHION Note: PSPP1045Z PROTECTION COVER PSPP1052Z PROTECTION COVER 1. RTL (Retention Time Limited) PSZKTE82480X GIFT BOX The marking (RTL) indicates that the Retention Time is...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks Q216 2SD1819A TRANSISTOR(SI) RA701 D1H81034A010 RESISTOR ARRAY, 10K Q217 2SD1819A TRANSISTOR(SI) RA702 D1H82214A024 RESISTOR ARRAY, 220K B1GFAFNN0001 TRANSISTOR(SI) RA703 D1H82214A024...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks F2G1H1000010 C205B PSCEA1HN4R7 F2G1H1000010 C205C PSCEA1HN4R7 F2G1H1000010 C205D PSCEA1HN4R7 F2G1H1000010 C205E PSCEA1HN4R7 ECUV1H102KBV 0.001 C205F PSCEA1HN4R7 ECUV1H102KBV 0.001 C205G PSCEA1HN4R7...
Page 192
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C831 ECUV1H103KBV 0.01 R20B ERJ3GEYF122 1.2K C832 ECUV1H103KBV 0.01 R21A ERJ3GEY0R00 C833 ECUV1H103KBV 0.01 R21B ERJ3GEY0R00 C851 ECUV1H103KBV 0.01 R22A...
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KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R202A ERJ14YJ220 R211B ERJ3GEYJ123 R202B ERJ14YJ220 R211C ERJ3GEYJ123 R202C ERJ14YJ220 R211D ERJ3GEYJ123 R202D ERJ14YJ220 R211E ERJ3GEYJ123 R202E ERJ14YJ220 R211F ERJ3GEYJ123...
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KX-TES824LA / KX-TEM824LA / 25.12. FOR THE SCHEMATIC DIAGRAM Note: 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
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KX-TES824LA / KX-TEM824LA / 26 KX-TE82483X (3-PORT ANALOGUE CO LINE AND 8- PORT HYBRID EXTENSION)
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KX-TES824LA / KX-TEM824LA / 26.1. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED...
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KX-TES824LA / KX-TEM824LA / 26.2. LOCATION OF OPTIONAL CARDS 26.2.1. 3-Port Analogue CO Line and 8-Port Hybrid Extension (KX-TE82483X) Function Adds 3 outside (CO) lines and 8 hybrid extensions on the KX-TES824 basic system. Installing KX-TE82483 to KX-TES824 1. Loosen the screws and open the top and bottom front covers.
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KX-TES824LA / KX-TEM824LA / 5. Insert the modular plugs of the telephone line cords (2-conductor wiring) into the card’s modular CO ports. 6. Connect the line cords to the terminal board or the modular jacks from the telephone company. 7. Insert the modular plugs of the telephone line cords (2-conductor wiring) into the card’s modular extension jacks.
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KX-TES824LA / KX-TEM824LA / 26.5. CIRCUIT OPERATION 26.5.1. CO Interface Circuit 26.5.1.1. Composition This is composed of the following circuit: 1) Bell signal detection 2) DC loop formation circuit 3) Pulse dial transmission circuit 4) CALL ID interface circuit 5) COL bidirectional amplifier circuit 1) Bell signal detection When CO line is idle, photo coupler PC1, PC2 are OFF.
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KX-TES824LA / KX-TEM824LA / 2) DC loop formation circuit In the off hook status, PC5 is ON. DC loop path: Tip→L1→D1→D2→D3→Q10(E-C)→Q1(C-E)→R9→R8→D3→L1→Ring At this time, the output of the photo coupler PC1 changes level from High to low. Ring→L1→D3→R8→R9→Q1(E-C)→Q10(C-E)→D3→D2→D1→L1→Tip At this time, the output of the photo coupler PC2 changes level from High to low.
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KX-TES824LA / KX-TEM824LA / 4) CALL ID interface circuit It is insulated by the transformer in a COL circuit, and the call ID signal inputted from outside line is transmitted to a CALLID option card. The flow of a CALLID signal Tip→L1→R2→PC1(1-2)→C3→T2→R5→L1→Ring...
Page 214
KX-TES824LA / KX-TEM824LA / 1) Conference switch Normally, pin 6 of the analog switch IC2 is low level, but during conferences, this pin becomes high level. Because, during conferences, it should compensate the return loss by connecting the balance network BN2 and the balance network BN3 in parallel.
Page 215
KX-TES824LA / KX-TEM824LA / 26.5.2. Cross Point Switch Circuit 26.5.2.1. Composition The cross point circuit composed of three cross point switch IC´s. (IC500:8X16, IC501:8X8, IC502:4X8) 1) Cross Point Switch IC Operation The cross point SW (IC500) contains a 8X16 array of cross point switches along with a 7 to 128 line decoder and latch circuits.
Page 218
KX-TES824LA / KX-TEM824LA / 26.5.3. Intercom Circuit 1) Composition This is composed of the following circuits: a) +15V power source for the extension telephones b) Hook detect for SLT and pulse dialing detect c) Bell ring trip section 2) Circuit operation a) Power supply to the telephone With the telephone off hook, a DC loop is formed, and current is supplied to the telephone.
Page 219
KX-TES824LA / KX-TEM824LA / c) Bell ringing trip section When the telephone is a signal line telephone, extension calling is executed by means of a ringing signal. When the ringing signal is supplied, RL201 turns ON and the current flows are as follows: Bell transformer →...
Page 220
KX-TES824LA / KX-TEM824LA / 26.5.5. DATA Communication Circuit 26.5.5.1. Composition This circuit is composed of the ASIC and the data communication interface circuits for the ICM circuit. 26.5.5.2. Circuit Operation 1) Data Communication of ASIC The APT I/f module is built into the CPU. It is for the APT communication of one block (8ch) and has the module of three blocks (24ch) at maximum.
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KX-TES824LA / KX-TEM824LA / 26.5.6. DTMF Receiver Circuit 26.5.6.1. Composition The DTMF receiver circuit is composes of two DTMF receivers. IC510 and IC511 are used for the DTMF receivers from SLT connected to the extension. The DTMF signal is the 4bit parallel data and read by ASIC.
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KX-TES824LA / KX-TEM824LA / 26.6. TROUBLESHOOTING GUIDE 26.6.1. No Dial Tone 26.6.2. Cannot Dial...
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KX-TES824LA / KX-TEM824LA / 26.6.7. Cannot Receive Call Dial Tone 26.6.8. Cannot Send a Hold On Music...
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KX-TES824LA / KX-TEM824LA / 26.7. IC DATA 26.7.1. IC10 PIN No Pin Name Function DTMF Rx Data[0] DTMF Rx Data[1] DTMF Rx Data[2] DTMF Rx Data[3] STD7 DTMF-R1 Status STD8 DTMF-R2 Status TOE7 DTMF-R1 Data output Enable TOE8 DTMF-R2 Data output Enable...
Page 227
KX-TES824LA / KX-TEM824LA / 26.8. TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES...
Page 228
KX-TES824LA / KX-TEM824LA / 26.9. CABINET AND ELECTRICAL PATRS 26.10. ACCESSORIES AND PACKING MATERIALS...
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KX-TES824LA / KX-TEM824LA / 26.11. REPLACEMENT PARTS LIST Ref. Part No. Part Name & Description Remarks (KX-TE82483X) PSHE1051Z SPACER PSPN1070Z CUSHION Note: PSPP1045Z PROTECTION COVER PSPP1052Z PROTECTION COVER 1. RTL (Retention Time Limited) PSZKTE82483X GIFT BOX The marking (RTL) indicates that the Retention Time is...
Page 230
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks Q207C 2SD1819A TRANSISTOR(SI) D205E MA111 DIODE(SI) Q207D 2SD1819A TRANSISTOR(SI) D205F MA111 DIODE(SI) Q207E 2SD1819A TRANSISTOR(SI) D205G MA111 DIODE(SI) Q207F 2SD1819A...
Page 231
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks CN200E PQJJ1T011Y JACK, TEL ECQE2E105KZ CN200F PQJJ1T011Y JACK, TEL ECQE2E105KZ CN200G PQJJ1T011Y JACK, TEL ECUV1C474ZFV 0.47 CN200H PQJJ1T011Y JACK, TEL ECUV1C474ZFV 0.47...
Page 232
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C202E F2G1C1000015 C303 ECUV1C223KBV 0.022 C202F F2G1C1000015 C304 ECUV1C223KBV 0.022 C202G F2G1C1000015 C305 ECUV1H104ZFV C202H F2G1C1000015 C500 ECUV1H223KBV 0.022 C203A...
Page 233
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C912 ECUV1H103KBV 0.01 R18C ERJ3GEY0R00 C913 ECUV1H103KBV 0.01 R20A ERJ3GEYF122 1.2K C914 ECUV1H103KBV 0.01 R20B ERJ3GEYF122 1.2K C915 ECUV1H103KBV 0.01...
Page 234
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R49A ERJ3GEYJ473 R206E ERJ1WYJ102 R49B ERJ3GEYJ473 R206F ERJ1WYJ102 R49C ERJ3GEYJ473 R206G ERJ1WYJ102 R50A ERJ3GEYJ473 R206H ERJ1WYJ102 R50B ERJ3GEYJ473 R207A ERJ3GEYJ333...
Page 235
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R219F ERJ3GEYJ102 R228 ERJ3GEYJ682 6.8K R219G ERJ3GEYJ102 R229 ERJ3GEYJ221 R219H ERJ3GEYJ102 R231 ERJ3GEYJ273 R220A PQ4R10XJ271 R232 ERJ3GEYJ273 R220B PQ4R10XJ271 R235 ERJ3GEYJ222 2.2K...
Page 249
KX-TES824LA / KX-TEM824LA / 27.1. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED...
Page 250
KX-TES824LA / KX-TEM824LA / 27.2. LOCATION OF OPTIONAL CARDS 27.2.1. Message Extension Card for DISA/UCD OGMs (KX-TE82491X) Function When an optional message expansion card for DISA/UCD OGMs is added, up to 2 messages can be played simultaneously for callers and the total recording time of the PBX is increased from 3 to 6 minutes.
Page 251
KX-TES824LA / KX-TEM824LA / 27.3. BLOCK DIAGRAM FW PN FC S N FS C K FLASH (LC25FV411T) FS R B sanyo UF D DF D BH EN 8M SRAM LA[ 1 9] LA [16:0] LD[ 15: 0] NC S NR D...
Page 252
KX-TES824LA / KX-TEM824LA / 27.4. TROUBLESHOOTING GUIDE 27.4.1. PBX cannot work 27.4.2. Cannot record messages 3 minutes more...
Page 253
KX-TES824LA / KX-TEM824LA / 27.5. TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES 27.6. ACCESSORIES AND PACKING MATERIALS...
Page 254
KX-TES824LA / KX-TEM824LA / 27.7. REPLACEMENT PARTS LIST Ref. Part No. Part Name & Description Remarks (KX-TE82491X) C3FBKC000127 C3BBLG000017 Note: (CONNECTORS) CN100 K1KB60B00019 CONNECTOR, 60P 1. RTL (Retention Time Limited) (COMPONENTS PARTS) The marking (RTL) indicates that the Retention Time is...
Page 255
KX-TES824LA / KX-TEM824LA / 27.8. FOR THE SCHEMATIC DIAGRAM Note: 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
Page 260
KX-TES824LA / KX-TEM824LA / 28.1. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED...
Page 261
KX-TES824LA / KX-TEM824LA / 28.2. LOCATION OF OPTIONAL CARDS 28.2.1. 2-Channel Voice Message Card (KX-TE82492X) Function Provides 60 minutes of recording time (2 channels) for messages using the Built-in Voice Message Feature. 1. Loosen the screws and open the top and bottom front covers.
Page 263
KX-TES824LA / KX-TEM824LA / 28.4. CIRCUIT OPERATIONS 28.4.1. Option Card (KX-TE82492X) 28.4.1.1. Voice Record/Play Circuit Circuit Operation This card has two BV record and play circuits. DSP IC is controlled by Main Cpu. In case of recording, the voice (from CO/EXT) is through the crosspoint SW and DSP, and recorded to Memory IC.
Page 266
KX-TES824LA / KX-TEM824LA / 28.6. IC DATA 28.6.1. IC7, IC8 IC No. Pin No. Pin Name Description RSTN DSP Reset Reserve DSP Power Down Reserve Reserve Reserve Reserve Reserve LD[0] LD[1] Write data LD[2] Write data LD[3] Write data LD[4]...
Page 267
KX-TES824LA / KX-TEM824LA / 28.7. TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES 28.8. ACCESSORIES AND PACKING MATERIALS...
Page 268
KX-TES824LA / KX-TEM824LA / 28.9. REPLACEMENT PARTS LIST Ref. Part No. Part Name & Description Remarks (KX-TE82492X) C3FBMZ000002 C3FBMZ000002 Note: C2HBBK000018 C2HBBK000018 1. RTL (Retention Time Limited) C0JBAZ001852 The marking (RTL) indicates that the Retention Time is PSVISNLV273A limited for this item.
Page 269
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks ECUV1C104KBV ERJ3GEY0R00 ECUV1C104KBV ERJ3GEY0R00 ECUV1C104KBV ERJ3GEY0R00 ECUV1C104KBV ERJ3GEY0R00 ECUV1C104KBV ERJ3GEY0R00 ECUV1C104KBV ERJ3GEYJ222 2.2K ECUV1C104KBV ERJ3GEYJ222 2.2K ECUV1C104KBV ERJ3GEYJ102 ECUV1C104KBV ERJ3GEYJ102...
Page 274
KX-TES824LA / KX-TEM824LA / 29.1. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED...
Page 275
KX-TES824LA / KX-TEM824LA / 29.2. LOCATION OF OPTIONAL CARDS 29.2.1. 3-Port Caller ID Card (KX-TE82493X) Function Adds Caller ID support for 3 outside (CO) lines. 1 card can be installed for outside (CO) lines 1-3. A second card can be installed for outside (CO) lines 4-6, and a third card can be installed for outside (CO) lines 7 and 8.
Page 277
KX-TES824LA / KX-TEM824LA / 29.5. TROUBLESHOOTING GUIDE 29.5.1. Cannot Receive CALL ID Data (FSK) 29.5.2. Cannot Receive CALL ID Data (DTMF)
Page 278
KX-TES824LA / KX-TEM824LA / 29.6. IC DATA 29.6.1. IC8 Pin No. Pin Name Descripption NCD[0] ESK Carrier Detection Flag NCD[1] ESK Carrier Detection Flag NCD[2] ESK Carrier Detection Flag Reserve NSTD[0] Alert Signal of CID Device NSTD[1] Alert Signal of CID Device...
Page 280
KX-TES824LA / KX-TEM824LA / 29.7. TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES 29.8. ACCESSORIES AND PACKING MATERIALS...
Page 281
KX-TES824LA / KX-TEM824LA / 29.9. REPLACEMENT PARTS LIST Ref. Part No. Part Name & Description Remarks (KX-TE82493X) IC1A C1CB00001176 IC1B C1CB00001176 Note: IC1C C1CB00001176 IC2A PQVINJM2904V 1. RTL (Retention Time Limited) IC2B PQVINJM2904V The marking (RTL) indicates that the Retention Time is...
Page 282
KX-TES824LA / KX-TEM824LA / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C16C ECUV1H223KBV 0.022 ERJ3GEYJ221 C17A ECUV1H332KBV 0.0033 ERJ3GEYJ221 C17B ECUV1H332KBV 0.0033 R14A ERJ3GEYJ104 100K C17C ECUV1H332KBV 0.0033 R14B ERJ3GEYJ104 100K...
Page 283
KX-TES824LA / KX-TEM824LA / 29.10. FOR THE SCHEMATIC DIAGRAM Note: 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.
Page 289
KX-TES824LA / KX-TEM824LA / 30.2. REPLACEMENT PARTS LIST (KX-A227X) Note: 1. RTL (Retention Time Limited) 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.