Panasonic KX-TC1200NLB Service Manual
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Panasonic KX-TC1200NLB Service Manual

Panasonic KX-TC1200NLB Service Manual

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ORDER NO. KM40201774C2
Telephone Equipment
KX-TC1200NLB
Cordless Phone
Black Version
(for Holland)
SPECIFICATIONS
1

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Summary of Contents for Panasonic KX-TC1200NLB

  • Page 1 ORDER NO. KM40201774C2 Telephone Equipment KX-TC1200NLB Cordless Phone Black Version (for Holland) SPECIFICATIONS...
  • Page 2 2002 Kyushu Matsushita Electric Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. 1. BATTERY 1.1. Recharge 1.2. Battery information...

  • Page 3: Battery Replacement

    2. BATTERY REPLACEMENT 3. LOCATION OF CONTROLS 3.1. Base Unit...
  • Page 4 3.2. Handset...
  • Page 5 4. CONNECTION...
  • Page 6 - When more than one unit is used, the units may interfere with each other. To prevent or reduce interference, please leave ample space between the base units. - KX-TC1200NLB is not designed to be used with rotary (pulse dialling) services. 5. OPERATIONS...
  • Page 7 5.2. Answering Calls 5.3. Storing Phone Numbers in Memory...
  • Page 8 5.4. Storing a Phone Number in the DIRECT Button 5.5. Dialing a Stored Number...
  • Page 9 5.6. Dialing a Stored Number in the DIRECT Button 5.7. Recall Button...
  • Page 10 6. DISASSEMBLY INSTRUCTIONS...

  • Page 11: Troubleshooting Guide

    Show in Fig. To remove. Remove. Lower Cabinet Screws (2.6 × 12)....... (A) × 4 Main P.C. Board Screws (2.6 × 6)......(B) × 1 Screws (2.6 × 6)......(C) × 2 Screws (2.6 × 12)......(D) × 1 Main P.C. Board. Show in Fig.

  • Page 12: Check Power

    Cross Reference: Check Power Bell Reception Check Battery Charge Check Link Check Handset Transmission Check Handset Reception 7.1. Check Power...

  • Page 13: Bell Reception

    Cross Reference: Reset Circuit (Base Unit) Power Supply Circuit Note: CPU: IC2 Cross Reference: Charge Circuit Note: CPU: IC2 *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) () or CIRCUIT BOARD (Handset) 7.2. Bell Reception...

  • Page 14: Check Battery Charge

    Cross Reference: Check Link Telephone Line Interface Note: CPU: IC2 Cross Reference: Check Link - In case of the following suffix, the bell might not stop even after key was pressed to answer the call. In this case, the Base Unit and the Handset might have been mixed up at the customer side.
  • Page 15 Cross Reference: Charge Circuit Power Supply Circuit Note: CPU: IC2 Cross Reference: Reset Circuit (Handset) Note: CPU: IC2 *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) () or CIRCUIT BOARD (Handset)

  • Page 16: Check Link

    7.4. Check Link **: Refer to Adjustment Note: CPU: IC2 RF IC: IC1 *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) () or CIRCUIT BOARD (Handset)
  • Page 17 **: Refer to Adjustment Note: CPU: IC2 RF IC: IC1 *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) () or CIRCUIT BOARD (Handset)

  • Page 18: Check Handset Transmission

    7.5. Check Handset Transmission Cross Reference: Signal Route 7.6. Check Handset Reception Cross Reference: Signal Route *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) () or CIRCUIT BOARD (Handset) 8. ADJUSTMENTS (BASE UNIT) If your unit have below symptoms, adjust or confirm each item using remedy column from the table.

  • Page 19: Test Mode Flow Chart (Base Unit)

    8.1. Test Mode Flow Chart (Base Unit) The operation-flow of Test mode and main check items are shown below. Note: **: Refer to the above table. 8.2. How to change the channel *: Refer to Flow Solder Side View 8.3. Adjustment...

  • Page 20: Adjustment Standard (Base Unit)

    Adjustment Test Adjustment *Procedure Items Mode Point RX VCO Confirm so that the reading of the Digital Voltmeter is 1.5V ± 0.5V. Talk Confirmation TX VCO Adjust T6 so that the reading of the Digital Voltmeter is 0.8V ± 0.1V. Talk Adjustment TX Frequency...

  • Page 21: Test Mode Flow Chart (Handset)

    table. Symptom Remedy* The movement of Battery Low Indicator is wrong. Make confirmation in item The base unit does not respond to a call from the handset. Make adjustments in item The base unit does not transmit or the transmit frequency is off. Make adjustments in item The transmit frequency is off.
  • Page 22 Note: Refet to CIRCUIT BOARD (Handset) Signal Route 9.2. How to change the channel 9.3. Adjustment...

  • Page 23: Adjustment Standard (Handset)

    Adjustment Test Procedure Adjustment Items Mode Point 1. Adjust the power supply voltage to DC3.60V,and confirm so that the reading of Battery Low oscillosope is High. Talk Confirmation 2. Adjust that power supply voltage to DC 3.40V, and confirm so that the reading of oscilloscope is Low.

  • Page 24: How To Check The Handset Speaker

    (Flow Solder Side View) Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) 10. RF SPECIFICATION 10.1. Base Unit Item Value Refer to -.* Remarks TX Frequency 31.0875 MHz ± 0.1kHz ADJUSTMENTS (BASE UNIT) (C) at CH3 TX Power 9.0mW ± 0.2mW (3CH) ADJUSTMENTS (BASE UNIT) (D) at CH3 Line Modulation factor...

  • Page 26: Frequency Table (Mhz)

    12. FREQUENCY TABLE (MHz) BASE UNIT PORTABLE UNIT Channel Transmit Frequency Receive Frequency Transmit Frequency Receive Frequency 31.0375 39.9375 39.9375 31.0375 31.0625 39.9625 39.9625 31.0625 31.0875 39.9875 39.9875 31.0875 31.1125 40.0125 40.0125 31.1125 31.1375 40.0375 40.0375 31.1375 31.1625 40.0625 40.0625 31.1625 31.1875 40.0875...
  • Page 27 *: The channel is changed if the noise interferes with the conversation. 13.2. Ringing...

  • Page 28: Changing The Channel

    13.3. Changing the Channel...

  • Page 29: Ports For Transmitting And Receiving Of Data

    13.4. Ports for transmitting and receiving of data Handset: transmitting (TX) ... 36 Pin receiving (RX) ... 4 Pin Base Unit: transmitting (TX) ... 17 Pin receiving (RX) ... 10 Pin 13.5. Waveform of DATA used for cordless transmission and reception...
  • Page 30 The DATA which is transmitted from the Handset to the Base Unit is combination of DATA 0, DATA 1, PSEUD. The DATA which is transmitted from the Base Unit to the Handset is combination of DATA 0, DATA 1, PSEUD. 13.5.1.
  • Page 31 - For example (one of part of data) 14. BLOCK DIAGRAM (BASE UNIT) 15. BLOCK DIAGRAM (HANDSET) 16. CIRCUIT OPERATION 16.1. Outline Base unit consists of the following ICs as shown in BLOCK DIAGRAM. - CPU:IC2 - Controlling the whole system - Forming/analyzing all data signals (ACK, CMD signal etc.*) - All interfaces (ex: LED, KEY, SP, Mic, LCD, Detector Circuit (Charge / Power Down)

  • Page 32: Power Supply Circuit

    - first/ second mixer - Amplifier for transmission and reception - Additionally, - Power Supply Circuit - Reset Circuit - Charge Circuit - Telephone Line Interface Circuit Handset consist of the following ICs as shown in BLOCK DIAGRAM. - CPU: IC2 - All data signals (forming/analyzing ACK or CMD signal*) - All interfaces (ex;...

  • Page 33: Reset Circuit (Base Unit)

    detects AC Adaptor power failure and maintains the unit security code. Fig. 1 16.3. Reset Circuit (Base Unit) After power supply from AC adaptor, the VREG is input for making reset signal. Refer to the below waveform. Fig. 2 Fig. 3...

  • Page 34: Charge Circuit

    16.4. Charge Circuit Circuit Operation: When charging the handset on the base unit, the charge current is as follows; DC (JK2) CHG+(Base) [CHG+(Handset) BATT(1)..Battery..BATT(2) CHG-(Handset)] CHG+(Base) In this way, the CPU on both unit detects the fact that the battery is charged. The charge current is controlled by switching Q701 of Handset.
  • Page 35 JK1 (2): R R120 R152 When the CPU (DSP) detects a ring signal and press the TALK Key on the handset. Q6 turns on and then RY1 turns on, thus providing an off-hook condition (active DC current flow through the circuit) and the following signal flow is for the loop current.
  • Page 36 signal is generated and amplified by RF AMP(Q3, Q4, T5). It pass through the Duplexer DPX1 and radiated from Antenna. The signal is transmitted from the base unit and received by the handset antenna and amplified by RF amplifier (Q1) through DPX1 as shown in BLOCK DIAGRAM (HANDSET) ().

  • Page 37: Signal Route

    voice data. After second if filter, the data signal is made square shape by data limiting AMP of the RF IC. RX data is output to CPU (RX Data). 16.6.3. RF signal operation/control and PLL operation (RF UNIT) Base unit radio frequency signal received by antenna passes through duplexer (DPX1). RF signal is amplified by RF AMP.
  • Page 38 Fig. 4 Fig. 5...

  • Page 39: Battery Low / Power Down Detector

    17.2. Battery Low / Power Down Detector Circuit Operation: “Battery Low” and “Power Down” are detected by RF IC which check the voltage from battery. Shortly, every detected blocks are inside of RF IC. The detected voltage is as follows; - Battery Low Battery voltage : V(Batt) <...

  • Page 40: Cpu Data (Handset)

    19. CPU DATA (Handset) 19.1. IC2...

  • Page 41: How To Replace Flat Package Ic

    20. HOW TO REPLACE FLAT PACKAGE IC 20.1. Preparation - SOLDER...
  • Page 42 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. Temperature of Copper Rod 662 ± 50°F (350 ± 10°C) (An expert may handle between 60 W to 80 W iron, but beginner might damage foil by overheating.) - Flux HI115 Specific gravity 0.863.

  • Page 43: Cabinet And Electrical Parts Location

    20.3. 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. 21. CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)
  • Page 44 22. CABINET AND ELECTRICAL PARTS LOCATION (HANDET)

  • Page 45: Accessories And Packing Materials

    23. ACCESSORIES AND PACKING MATERIALS...

  • Page 46: Replacement Parts List

    24. REPLACEMENT PARTS LIST 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. The retention period of availability depends on the type of assembly and the laws governing parts and product retention.
  • Page 47 24.1. Base Unit 24.1.1. CABINET AND ELECTRICAL PARTS Ref. No. Part No. Part Name & Description Remarks PQJT10180Z CHARGE TERMINAL PQHR10882Z LED LENS PQGT14798Z NAME LABEL PQQT22392Z CHARGE LABEL PQBC10349Z1 PUSH BUTTON PQKE10335Z1 HOOK LEVER PQKF10534Y1 LOWER CABINET PQKM10509R1 UPPER CABINET PQSA10105Y ANTENNA PQQT22371Z...
  • Page 48 Ref. No. Part No. Part Name & Description Remarks PCB1 PQWPC1200NLH MAIN P.C.BOARD ASS'Y (RTL) (ICS) SA133122409 SA138740526 SA110032403 (TRANSISTORS) BB230024104 TRANSISTOR(SI) SB010390608 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) BB110004408 TRANSISTOR(SI) SB010390608...
  • Page 49 Ref. No. Part No. Part Name & Description Remarks BDFL0450E01 CERAMIC FILTER (CRYSTAL OSCILLATORS) BD1R1115003 CRYSTAL OSCILLATOR PQVCK7952N4Z CRYSTAL OSCILLATOR (TRANSFORMERS) CLIP1200053 TRANSFORMER CLIP1200100 TRANSFORMER CLIP1200096 TRANSFORMER CLIP1200142 TRANSFORMER DG0P1200019 TRANSFORMER (FUSES) DC0T0602606 FUSE DC0T0602606 FUSE (OTHERS) CK15HC12G10 BUZZER CB114714205 CERAMIC CAPACITOR DPX1 BDFL0123103...
  • Page 50 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ104 100k ERJ3GEYJ224 220k ERJ3GEYJ222 2.2k ERJ3GEYJ223 ERJ3GEYJ822 8.2k ERJ3GEYJ272 2.7k ERJ3GEYJ475 4.7M ERJ3GEYJ153 ERJ3GEYJ153 ERJ3GEYJ681 ERJ3GEYJ222 2.2k ERJ3GEYJ224 220k ERJ3GEYJ511 ERJ3GEYJ104 100k ERJ3GEYJ223 ERJ3GEYJ224 220k ERJ3GEYJ104 100k ERDS2TJ103 ERJ3GEYJ104 100k ERJ3GEY0R00 ERJ3GEYJ103 ERJ3GEYJ203...
  • Page 51 Ref. No. Part No. Part Name & Description Remarks R119 ERJ3GEYJ823 R120 ERJ3GEY0R00 R122 ERJ3GEYJ132 1.3k R124 ERJ3GEYJ270 R130 ERJ3GEYJ270 R131 ERJ3GEYJ104 100k R132 ERJ3GEYJ222 2.2k R133 ERJ3GEYJ560 R137 ERJ3GEYJ182 1.8k R138 ERJ3GEYJ152 1.5k R141 ERJ3GEYJ512 5.1k R142 ERDS2TJ220 R143 ERJ3GEYJ514 510k R144...
  • Page 52 Ref. No. Part No. Part Name & Description Remarks ECUV1H102KBV 0.001 ECEA1HKA2R2 ECUV1H103KBV 0.01 ECUV1H103KBV 0.01 ECUV1E223KBV 0.022 ECUV1H123KBV 0.012 ECUV1H070CCV 7p ECUV1H103KBV 0.01 ECUV1H153KBV 0.015 ECUV1C104KBV 0.1 ECEA1HKA2R2 ECUV1H103KBV 0.01 ECEA1HU2R2 ECUV1H101JCV 100p ECUV1H151JCV 150p ECUV1H180JCV ECUV1H101JCV 100p ECUV1H151JCV 150p ECEA1HU100 ECUV1H103KBV 0.01...
  • Page 53 Ref. No. Part No. Part Name & Description Remarks ECKD2H681KB 680p ECUV1H151JCV 150p ECEA1AU471 ECKD2H681KB 680p ECUV1C104ZFV ECUV1C683KBV 0.068 ECEA1HU2R2 ECUV1C104KBV 0.1 ECUV1H562KBV 0.0056 ECEA1CK101 ECUV1H103KBV 0.01 ECEA1HKA4R7 ECEA1CKS220 ECUV1H103KBV 0.01 C101 ECUV1H562KBV 0.0056 C102 ECEA1EU221 C103 ECEA1AU470 C104 ECFD1C104KD C105 ECEA1AKA101 C106...
  • Page 54 Ref. No. Part No. Part Name & Description Remarks PCB100 PQWPC1200NLR MAIN P.C.BOARD ASS'Y (RTL) (ICS) SA133122409 SA138780722 (TRANSISTORS) BB230024104 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB010390608 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB010390608 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) SB110390405 TRANSISTOR(SI) (DIODES) SC15L414808 DIODE(SI) SC15L414808 DIODE(SI) SC15L414808...
  • Page 55 Ref. No. Part No. Part Name & Description Remarks CR00020RRT5 TRIMMER CAPACITOR (RESISTORS) ERJ3GEYJ331 ERJ3GEYJ153 ERJ3GEYJ682 6.8k ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ224 220k ERJ3GEYJ823 ERJ3GEYJ331 ERJ3GEYJ562 5.6k ERJ3GEYJ224 220k ERJ3GEYJ823 ERJ3GEYJ153 ERJ3GEY0R00 ERJ3GEYJ103 ERJ3GEYJ432 4.3k ERJ3GEYJ103 ERJ3GEYJ472 4.7k ERJ3GEYJ273 ERJ3GEYJ623 ERJ3GEYJ472 4.7k ERJ3GEYJ913 ERJ3GEYJ103 ERJ3GEYJ334...
  • Page 56 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ222 2.2k ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ331 ERJ3GEYJ222 2.2k ERJ3GEYJ222 2.2k ERJ3GEYJ103 ERJ3GEYJ222 2.2k ERJ3GEYJ222 2.2k ERJ3GEYJ105 ERJ3GEYJ105 ERJ3GEYJ104 100k ERJ3GEYJ104 100k ERJ3GEYJ104 100k ERJ3GEYJ103 ERJ3GEYJ104 100k ERJ3GEYJ105 ERJ3GEYJ105 ERJ3GEY0R00 ERJ3GEY0R00 ERJ3GEYJ105 ERJ3GEYJ102 ERJ3GEYJ104 100k ERJ3GEYJ104...
  • Page 57 Ref. No. Part No. Part Name & Description Remarks ECEA1CKA100 ECUV1C473KBV 0.047 ECUV1H102KBV 0.001 ECEA1HKA2R2 ECUV1H223KBV 0.022 ECUV1H103KBV 0.01 ECUV1H102KBV 0.001 ECUV1H220JCV ECUV1H103KBV 0.01 ECUV1C103KBV 0.01 ECUV1H182KBV 0.0018 ECEA1HKA2R2 ECUV1C103KBV 0.01 ECUV1H103KBV 0.01 ECUV1C103KBV 0.01 ECUV1C104KBV 0.1 ECUV1H681JCV 680p ECUV1H151JCV 150p ECUV1H180JCV ECEA1CKA100...

  • Page 58: For Schematic Diagram

    Ref. No. Part No. Part Name & Description Remarks ECUV1C103KBV 0.01 ECUV1C103KBV 0.01 ECUV1C473KBV 0.047 ECUV1H103KBV 0.01 ECUV1H471JCV 470p ECUV1H471JCV 470p ECUV1C103KBV 0.01 ECUV1A105ZFV ECUV1C103KBV 0.01 ECUV1C103KBV 0.01 24.3. ACCESSORIES AND PACKING MATERIALS Ref. No. Part No. Part Name & Description Remarks PQLV16CEZ AC ADAPTOR...

  • Page 59: Schematic Diagram (Handset)

    26.2. RF Unit (Base Unit) 27. SCHEMATIC DIAGRAM (Handset) 27.1. Handset 27.2. RF Unit (Handset) 28. CIRCUIT BOARD (Base Unit) 28.1. Component View 28.2. Flow Solder Side View 29. CIRCUIT BOARD (Handset) 29.1. Component View 29.2. Flow Solder Side View H.M / KX-TC1200NLB...
  • Page 60 FM Deviation Audio Meter Analyzer Confirmation of VCO voltage Frequency Counter DC Volt Meter RF Volt Meter (A), (B) Volt Meter 50Ω RX-VCO TX-VCO T.P ( CH change at test mode) TXPOWER TXGND R171 R175 R153 C56 C57 DC12V or AC adaptor R125 R158...
  • Page 61 KX-TC1200NLB CIRCUIT BOARD (Component View (Base Unit))
  • Page 62 TX DATA R100 C108 (CPU: 17) R143 R117 R109 R119 R166 C120 R140 R177 R122 R138 R116 R105 R129 R157 R104 R178 C111 R130 R137 R102 R124 R179 RING DET (CPU: 24) KX-TC1200NLB CIRCUIT BOARD (Flow Solder Side View (Base Unit))
  • Page 63 150Ω AF Volt Meter (H) 47µF (A) Battery Low Generator Oscilloscope (G) Noise Squelch...
  • Page 64 43.820MHz RF Millivolt Meter 50Ω Frequency Counter Audio (I), (J) FM Deviation Analyzer Meter Volt Meter TXGND TXPOWER TX VCO DC Volt Meter RX VCO DC Volt Meter DC Power Supply...
  • Page 65 CHG DET VDD (CPU: 40) TX DATA TX DATA (CPU: 37) (DV1) (A) Battery Low (CPU: 36) (G) Noise Squelch KX-TC1200NLB CIRCUIT BOARD (Component View (Handset))
  • Page 66 V Bat IF IN (RF IC: 33) (RF IC: 32) TX VCO 2nd Mix (RF IC: 36) TXPOWER TXGND KX-TC1200NLB CIRCUIT BOARD (Flow Solder Side View (Handset))
  • Page 67 Q18, Q19 AC DOWN RF AMP TX VCO Q3,Q4, T5 Q5, T6, DV1 RESET -DATA DATA -CLK CHARGE -STB CONTROL Q14, Q17 DATA DC 12V DC 5V Q21, LED1 CHARGE CHARGE CONTROL LINE TERMINAL AUDIO SIGNAL KX-TC1200NLB BLOCK DIAGRAM (BASE UNIT)
  • Page 68 RING SELECT 4.7UF/50V 12VDC IC3D RING DET R0603 R149 EC5\5 200mA IMPEDENCE 470UF/25V EC10\5 R0603 22UF/16V ZD7.5 SOT-23 R150 EC5\2.5 C0603 620K R151 C100 JUMP 7.5MM R0603 JACK DC L7.5 R152 C101 VCPU C0603 20M 1/4W KX-TC1200NLB SCHEMATIC DIAGRAM (Base Unit)
  • Page 69 EC5/5 C0603 R0603 R0603 C0603 330K R0603 SOT-23\ECB R0603 C0603 C0603 R0603 C0603 C0603 R0603 C0603 1961 R0603 R0603 C0603 SOT-23 R0603 SOT-23\ECB IFT\7 C0603 C0603 R0603 R0603 C0603 VCD2 C0603 R0603 R0603 KX-TC1200NLB SCHEMATIC DIAGRAM (Base Unit (RF Unit))
  • Page 70 POWER BATTERY CONTROL 3.9V DIODE BRIDGE TX VCO RF AMP Q6, T6, DV1 Q5, T5 DIODE CHARGE -DATA DATA RESET BRIDGE TERMINAL -CLK -STB DATA CHARGE IC2 PING37 Q8, LED 1-4 BUZZER KEY BOARD Q7, BZ1 KX-TC1200NLB BLOCK DIAGRAM (HANDSET)
  • Page 71 3.9V to 0V ROW1 While charging TALK AUTO K22 DIRT C0603 ROW0 5V6 0.5W C0603 SOT-23 10V 0.5W D\362 ZD7.5 R111 SOT-23 0603 120 OHM COIL SMD 0805 C0603 VBAT CHG- 12uH L7.5 3.9V BATT1 3V6/300mA CNT2P\2.5 KX-TC1200NLB SCHEMATIC DIAGRAM (Handset)
  • Page 72 R0603 R0603 R0603 100K 10U/16V C0603 EC5/2.5 C0603 R0603 R0603 1960 R107 360K R0603 R0603 R0603 C0603 C0603 C0603 R0603 C0603 C0603 IFT\7 R0603 R0603 SOT-23\EBC R0603 SOT-23\EBC C0603 C0603 C0603 VCD2 C0603 R0603 KX-TC1200NLB SCHEMATIC DIAGRAM (Handset (RF Unit))

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