Panasonic KX-TC1206TWB Service Manual
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Panasonic KX-TC1206TWB Service Manual

Panasonic KX-TC1206TWB Service Manual

Black/silver/blue/pink version
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ORDER NO. KM40111737C3
Telephone Equipment
KX-TC1206TWB / KX-TC1206TWS / KX-TC1206TWF / KX-
TC1206TWP
Cordless Phone
Black Version
Silver Version
Blue Version
Pink Version
(for Taiwan)
SPECIFICATIONS
1

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  • Page 1 ORDER NO. KM40111737C3 Telephone Equipment KX-TC1206TWB / KX-TC1206TWS / KX-TC1206TWF / KX- TC1206TWP Cordless Phone Black Version Silver Version Blue Version Pink Version (for Taiwan) SPECIFICATIONS...
  • Page 2 2001 Kyushu Matsushita Electric Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. 1. BATTERY 1.1. Recharge...

  • Page 3: Battery Replacement

    1.2. Battery information 2. BATTERY REPLACEMENT...

  • Page 4: Location Of Controls

    3. LOCATION OF CONTROLS 3.1. Base Unit...
  • Page 5 3.2. Handset...
  • Page 6 4. CONNECTION...
  • Page 7 - USE ONLY WITH Panasonic AC ADAPTOR PQLV16TWZ. - The AC adaptor must remain connected at all times. (It is normal for the adaptor to feel warm during use.) - When more than one unit is used, the units may interfere with each other.

  • Page 8: Adding Another Phone

    4.1. Adding Another Phone This unit will not function during a power failue. To connect a standard telephone on the same line, use a T-adaptor.
  • Page 9 5. OPERATIONS 5.1. Making Calls 5.2. Answering Calls...
  • Page 10 5.3. Storing Phone Numbers in Memory 5.4. Storing a Phone Number in the DIRECT Button...
  • Page 11 5.5. Dialing a Stored Number 5.6. Dialing the Stored Number in the DIRECT Button...
  • Page 12 5.7. Flash Button 6. DISASSEMBLY INSTRUCTIONS...
  • Page 13 Show in Fig. Procedure To remove. Remove. Lower Cabinet Screws (2.6 × 12)....... (A) × 4 1, 2 Main P.C. Board Screws (2.6 × 6)......(B) × 1 Solder Main P.C. Board.

  • Page 14: Troubleshooting Guide

    Show in Fig. Procedure To remove. Remove. Rear Cabinet Battery compartment cover. 3, 4 Screws (2.6 × 12)......(C) × 2 3, 4, 5 Main P. C. Board Screw (2.6 × 12)......(D) × 1 Tape and solder. Main P. C. Board. 7.

  • Page 15: Check Power

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

  • Page 16: 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 17: 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 18 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 19: 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 20 **: Refer to Adjustment Note: CPU: IC2 RF IC: IC1 *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) () or CIRCUIT BOARD...

  • Page 21: Check Handset Transmission

    (Handset) 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 22: 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 23: Adjustment Standard (Base Unit)

    Adjustment Test *Procedure Adjustment Items Mode Point RX VCO Confirm so that the reading of the Digital Voltmeter is 1.4V ± 0.6V. Talk Confirmation TX VCO Adjust T6 so that the reading of the Digital Voltmeter is 2.0V ± 0.1V. Talk Adjustment TX Frequency...

  • Page 24: 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 25 Note: Refet to CIRCUIT BOARD (Handset) Signal Route 9.2. How to change the channel 9.3. Adjustment...

  • Page 26: 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 27: 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 46.670 MHz ± 0.1kHz ADJUSTMENTS (BASE UNIT) (C) at CH3 TX Power 0.25mW ± 0.1mW (3CH) ADJUSTMENTS (BASE UNIT) (D) at CH3 Line Modulation factor...

  • Page 29: Frequency Table (Mhz)

    12. FREQUENCY TABLE (MHz) BASE UNIT PORTABLE UNIT Channel Transmit Frequency Receive Frequency Transmit Frequency Receive Frequency 46.610 49.670 49.670 46.610 46.630 49.845 49.845 46.630 46.670 49.860 49.860 46.670 46.710 49.770 49.770 46.710 46.730 49.875 49.875 46.730 46.770 49.830 49.830 46.770 46.830 49.890...
  • Page 30 *: The channel is changed if the noise interferes with the conversation. 13.2. Ringing...

  • Page 31: Changing The Channel

    13.3. Changing the Channel...

  • Page 32: 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 33 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 34 - 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 35: 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 36: 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 37: 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 38 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 39 Amplifier device). And the signal goes through the compressor of RF IC, it is output to transmitter circuit. The signal of the data sent to the handset is applied in the anode of the variable capacitor diode (VARICAP : DV1). The capacitor of VARICAP is changing in accordance with the voice signal from telephone line interface or TX DATA signal from CPU.

  • Page 40: Signal Route

    it is converted to10.7 MHz and 455 KHz Intermediate by RF IC. The demodulated audio signal is output from RF IC (DET OUT) and passed through "Expander" process to reduce noise, then voice signal is led to LINE AMP. The signal is passed through TELEPHONE INTERFACE and Tel-line.

  • Page 41: Circuit Operation (Handset)

    17. CIRCUIT OPERATION (HANDSET) 17.1. Reset Circuit (Handset) The power of handset is supplied by battery. Whenever the battery is recharged or inserted, the impulse at CHG+ becomes Reset signal through Q11, and sent to CPU. Fig. 4 Fig. 5...

  • Page 42: 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 43: Cpu Data (Base Unit)

    Fig. 6 18. CPU DATA (Base Unit) 18.1. IC2...

  • Page 44: Cpu Data (Handset)

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

  • Page 45: How To Replace Flat Package Ic

    20. HOW TO REPLACE FLAT PACKAGE IC 20.1. Preparation - SOLDER...
  • Page 46 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 47: 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 48 22. CABINET AND ELECTRICAL PARTS LOCATION (HANDET)

  • Page 49: Accessories And Packing Materials

    23. ACCESSORIES AND PACKING MATERIALS...

  • Page 50: 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 51 24.1.1. CABINET AND ELECTRICAL PARTS Ref. No. Part No. Part Name & Description Remarks PQJT10180Z CHARGE TERMINAL PQHR10882Z LED LENS PQGT15030Z NAME LABEL (for KX-TC1206TWB) PQGT15015Z NAME LABEL (for KX-TC1206TWS) PQGT15016Z NAME LABEL (for KX-TC1206TWF) PQGT15248Z NAME LABEL (for KX-TC1206TWP) PQQT22331Z CHARGE LABEL PQBC10349Z1...
  • Page 52 Ref. No. Part No. Part Name & Description Remarks PCB1 PQWPC1206TWH MAIN P.C. BOARD ASS'Y (RTL) (ICS) SA133122409 SA138740518 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) SB110390405 TRANSISTOR(SI)
  • Page 53 Ref. No. Part No. Part Name & Description Remarks DC72P120018 JACK/SOCKET DC71P120023 JACK/SOCKET (CERAMIC CAPACITORS) CATZ681KC68 CERAMIC CAPACITOR CATZ681KC68 CERAMIC CAPACITOR CB114714205 CERAMIC CAPACITOR (CERAMIC FILTERS) BDFL107MA53 CERAMIC FILTER BDFL0455E02 CERAMIC FILTER (CRYSTAL OSCILLATORS) BD1R1024504 CRYSTAL OSCILLATOR BDRR0800005 CRYSTAL OSCILLATOR (TRANSFORMERS) CLIP1200053 TRANSFORMER...
  • Page 54 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ101 ERJ3GEYJ104 100k ERJ3GEYJ223 ERJ3GEYJ223 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ104 100k ERJ3GEYJ474 470k ERJ3GEYJ222 2.2k ERJ3GEYJ223 ERJ3GEYJ822 8.2k ERJ3GEYJ182 1.8k ERJ3GEYJ475 4.7M ERJ3GEYJ153 ERJ3GEYJ153 ERJ3GEYJ681 ERJ3GEYJ222 2.2k ERJ3GEYJ224 220k ERJ3GEYJ511 ERJ3GEYJ104 100k ERJ3GEYJ223 ERJ3GEYJ224 220k ERJ3GEYJ104...
  • Page 55 Ref. No. Part No. Part Name & Description Remarks R106 ERDS2TJ220 R108 ERJ3GEYJ472 4.7k R109 ERJ3GEYJ334 330k R111 ERJ3GEYJ681 R114 ERJ3GEYJ223 R115 ERJ3GEYJ563 R116 ERJ3GEY0R00 R117 ERJ3GEYJ106 R118 ERDS1TJ151 R119 ERJ3GEYJ823 R120 ERJ3GEY0R00 R122 ERJ3GEYJ561 R123 ERJ3GEYJ153 R126 ERJ3GEYJ561 R127 ERDS2TJ206 R128 ERDS2TJ206...
  • Page 56 Ref. No. Part No. Part Name & Description Remarks ECEA1EK470 ECUV1H473MDV 0.047 ECUV1H103KBV 0.01 ECUV1C104ZFV ECUV1H102KBV 0.001 ECUV1C104ZFV ECUV1H471JCV 470p ECUV1H473MDV 0.047 ECUV1H102KBV 0.001 ECEA1HKA2R2 ECUV1H270JCV ECEA1CKA100 ECUV1C473KBV 0.047 ECUV1H102KBV 0.001 ECEA1HKA2R2 ECUV1H103KBV 0.01 ECUV1H103KBV 0.01 ECUV1E223KBV 0.022 ECUV1H153KBV 0.015 ECUV1H100DCV ECUV1H103KBV 0.01...
  • Page 57 Ref. No. Part No. Part Name & Description Remarks ECUV1C104ZFV ECUV1H390JCV ECUV1H103KBV 0.01 ECUV1C104ZFV ECUV1H270JCV ECEA1AU101 ECUV1H270JCV ECEA1HKAR47 0.47 ECUV1H271JCV 270p ECUV1H223KBV 0.022 ECUV1C104ZFV ECUV1H223KBV 0.022 ECUV1C104ZFV ECUV1C104ZFV ECUV1C473KBV 0.047 ECUV1H101JCV 100p ECEA1AU471 ECUV1E104KBV ECUV1C104ZFV ECUV1H223KBV 0.022 ECUV1H103KBV 0.01 ECUV1C104KBV ECUV1H103KBV 0.01 ECUV1C104KBV...
  • Page 58 Ref. No. Part No. Part Name & Description Remarks PQJT10182Z CHARGE TERMINAL PQGT15031Z NAME LABEL (for KX-TC1206TWB) PQGT15018Z NAME LABEL (for KX-TC1206TWS) PQGT15019Z NAME LABEL (for KX-TC1206TWF) PQGT15249Z NAME LABEL (for KX-TC1206TWP) PQKF10535Y1 REAR CABINET (for KX-TC1206TWB) PQKF10535Y4 REAR CABINET (for KX-TC1206TWS)
  • Page 59 Ref. No. Part No. Part Name & Description Remarks LED1 SC5E0192115 LED2 SC5E0192115 LED3 SC5E0192115 LED4 SC5E0192115 LED5 SC5E0192115 LED6 SC5E0192123 (COILS) PQLQZM120K COIL PQLQZM120K COIL PQLQZK120J COIL PQLQZK120J COIL PQLQZKR68J COIL SH590121N75 COIL DPX1 BDFL0254313 COIL (CONNECTOR) BATT1 PQJP2D13Z CONNECTOR (CERAMIC FILTERS) BDFL107MA53...
  • Page 60 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ563 ERJ3GEYJ472 4.7k ERJ3GEYJ913 ERJ3GEYJ103 ERJ3GEYJ394 390k ERJ3GEYJ152 1.5k ERJ3GEYJ103 ERJ3GEYJ224 220k ERJ3GEYJ473 ERJ3GEYJ202 ERJ3GEYJ102 ERJ3GEYJ470 ERJ3GEYJ224 220k ERJ3GEYJ101 ERJ3GEYJ104 100k ERJ3GEYJ223 ERJ3GEYJ104 100k ERJ3GEYJ393 ERJ3GEYJ104 100k ERJ3GEYJ474 470k ERJ3GEYJ222 2.2k ERJ3GEYJ223 ERJ3GEYJ473 ERJ3GEYJ822...
  • Page 61 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ104 100k ERJ3GEYJ102 ERJ3GEYJ104 100k ERJ3GEYJ104 100k ERJ3GEY0R00 ERJ3GEYJ103 ERJ3GEYJ334 330k ERJ3GEYJ393 ERJ3GEYJ470 ERJ3GEYJ154 150k ERJ3GEYJ472 4.7k R101 ERJ3GEY0R00 R102 ERJ3GEYJ153 R103 ERJ3GEYJ105 R105 ERJ3GEYJ103 R106 ERJ3GEYJ820 R107 ERJ3GEYJ222 2.2k R108 ERJ3GEYJ102 R109 ERJ3GEYJ102...
  • Page 62 Ref. No. Part No. Part Name & Description Remarks ECUV1H101JCV 100p ECUV1H151JCV 150p ECUV1H103KBV 0.01 ECUV1H270JCV ECEA1EK470 ECEA1HKA2R2 ECUV1A105ZFV ECUV1C105KB ECUV1C473KBV 0.047 ECUV1H333KBV 0.033 ECEA1EK470 ECUV1H223KBV 0.022 ECUV1H103KBV 0.01 ECEA1CKA100 ECUV1H103KBV 0.01 ECUV1H223KBV 0.022 ECUV1H120JCV ECUV1H103KBV 0.01 ECUV1H050CCV ECUV1H150JCV ECUV1H103KBV 0.01 ECUV1H390JCV ECUV1H270JCV...
  • Page 63 25. FOR SCHEMATIC DIAGRAM 25.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit)) 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. Important Safety Notice: Components identified by mark have special characteristics important...
  • Page 64 H.M / KXTC1206TWB / KXTC1206TWS / KXTC1206TWF / KXTC1206TWP...
  • Page 65 ANT1 47UF/10V VBAT ANTENNA C0603 EC5/2.5 PAD3 CF1 10.7MHZ FILTER\1 R0603 R0603 R0603 C0603 1431 IFT\7 R0603 R0603 R0603 455E C0603 R106 FILTER\2 R6 10K 330K R0603 C0603 R0603 2U2/50V 470P 470P R0603 EC5/2.5 C0603 C0603 C0603 C0603 220K C0603 C0603 C0603 C0603...
  • Page 66 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 68 T.P ( CH change at test mode) TX DATA 2nd Mix IF IN TXPOWER TXGND RX-VCO (RF IC: 36) (RF IC: 32) R98: for Changing the channel (DV1) TX-VCO R171 XOUT R175 (CPU: 1) R153 C56 C57 VDD (CPU: 28) R125 R158 CHG LD...
  • Page 69 150Ω AF Volt Meter (H) 47µF (A) Battery Low Generator Oscilloscope (G) Noise Squelch...
  • Page 70 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 71 CHG DET VDD (CPU: 40) TX DATA TX DATA (CPU: 37) (DV1) (A) Battery Low (CPU: 36) (G) Noise Squelch...
  • Page 72 V Bat IF IN (RF IC: 33) (RF IC: 32) TX VCO 2nd Mix (RF IC: 36) TXPOWER TXGND...
  • Page 73 ANTENNA 10.7MHz 455kHz TELEPHONE LINE RF FILTER CF1, CF2 INTERFACE RX VCO Q13, Q14, IC3 L10, C26 DUPLEXER DPX1 RF IC RF AMP TB31224F DIODE MIX 1/2 Q1, T2 LINE LINE BRIDGE RX LOOP TEL LINE D2, D3, D4, D5 Q11, IC3 -DATA PLL OSC...
  • Page 74 VREG 8MHz 1Vp-p 220K 100K C0603 R0603 R0603 R0603 R0603 VCPU R153 12UH 5MM C0603 R158 C104 100K 100uF/10V 0.1UF 25V 220K 100K R0603 EC10/5 R159 R0603 CC6\5 R0603 R0603 R0603 100K C0603 LED1 10K 1/4W R0603 CHARGE 100K R167 R0603 R0603 19-21VGC/TR8 GREEN...
  • Page 75 47UF/10V R156 C0603 EC5/2.5 ANT1 R0603 ANTENNA PAD3 CF1 10.7MHZ ZD11 FILTER\1 R0603 1431 15V/0.5W R0603 IFT\7 C0603 D\362 R0603 R0603 R0603 455E 330K FILTER\2 R0603 R175 C0603 C0603 R0603 1.5UH C0603 2U2/50V 470P R0603 EC5/5 C0603 C0603 470P C0603 R0603 1165 C0603...
  • Page 76 ANTENNA RF FILTER BLOCK DIAGRAM CF1, CF2 (HANDSET) RX VCO L6, C24 DUPLEXER DC 3.9V RF IC DPX1 CONTROL LINE SPEAKER REC1 TB31224F RF AMP MIX 1/2 AUDIO SIGNAL Q1, T3 RX LOOP -DATA PLL OSC MIC1 -CLK TX LOOP DC 3.9V POWER BATTERY...
  • Page 77 12uH L7.5 100uF/10V 100K R0603 EC5\2.5 C0603 R0603 R0603 MINI C0603 STO-23 LED1 LED4 GREEN GREEN 32.768KHz C0603 C0603 C0603 LED\SQ LED\SQ C0603 XTAL\2R 3.5Vp-p LED2 LED3 R0603 GREEN GREEN ALERT 1K R0603 LED\SQ LED\SQ 32.768kHz Taiwa n BUZ CNTL R0603 BZ12 CHARGE DE T...

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