ORDER NO. KM40204852C3 Telephone Equipment KX-TC1205RUB KX-TC1205RUW KX-TC1205RUS KX-TC1205RUF Cordless Phone Black Version White Version Silver Version Blue Version (for Russia) © 2002 Kyushu Matsushita Electric Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF CONTENTS Page 1 BATTERY Page 4 8 ADJUSTMENTS (BASE UNIT) 23 1.1. Recharge 4 8.1. Test Mode Flow Chart (Base Unit) 23 1.2. Battery information 4 8.2. How to change the channel 24 2 BATTERY REPLACEMENT 5 8.3. Adjustment 24 3 LOCATION OF CONTROLS 6 8.4. Adjustment Standard (Base Unit) 25 3.1. Base Unit 6 3.2. Handset 6 9.1. Test Mode Flow Chart (Handset) 26 4 CONNECTION 7 9.2. How to change the channel 27 9 9.3.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 16.1. Outline 38 23 ACCESSORIES AND PACKING MATERIALS 52 16.2. Power Supply Circuit 39 24 REPLACEMENT PARTS LIST 53 16.3. Reset Circuit (Base Unit) 40 24.1. Base Unit 53 16.4. Charge Circuit 41 24.2. Handset 56 24.3. ACCESSORIES AND PACKING MATERIALS 58 16.5. Telephone Line Interface 41 16.6. Transmitter/Receiver 42 16.7. Signal Route 44 25 FOR SCHEMATIC DIAGRAM 59 25.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit)) 59 25.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 1 BATTERY 1.1. Recharge 1.2.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 2 BATTERY REPLACEMENT 5
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 3 LOCATION OF CONTROLS 3.1. Base Unit 3.2.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 4 CONNECTION • USE ONLY WITH Panasonic AC ADAPTOR PQLV16CEZ. • 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. To prevent or reduce interference, please leave ample space between the base units.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 8
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 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 telephone T-adaptor.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 5 OPERATIONS 5.1. Making Calls 5.2.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 5.3. Storing Phone Numbers in Memory 5.4.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 5.5. Dialing a Stored Number 5.6.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 5.7.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 6 DISASSEMBLY INSTRUCTIONS Show in Fig. 1 2 To remove. Lower Cabinet Main P.C. Board Remove. Screws (2.6 × 12).............. ......... (A) × 4 Screws (2.6 × 6)................ ......... (B) × 1 Screws (2.6 × 6)................ ..........(C) × 2 Screws (2.6 × 12).............. ..........(D) × 1 Main P.C. Board.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Show in Fig. 3 4 5 To remove. Rear Cabinet Main P. C. Board Remove. Battery compartment cover. Screws (2.6 × 12).............. ........(E) × 2 Screw (2.6 × 12).............. ..........(F) × 1 Tape and solder. Main P. C. Board.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 7 TROUBLESHOOTING GUIDE Cross Reference: Check Power (P.17) Bell Reception (P.18) Check Battery Charge (P.19) Check Link (P.20) Check Handset Transmission (P.22) Check Handset Reception (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 7.1. Check Power Note: Cross Reference: CPU: IC2 Reset Circuit (Base Unit) (P.40) Power Supply Circuit (P.39) Note: Cross Reference: CPU: IC2 Charge Circuit (P.41) *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 7.2. Bell Reception Note: Cross Reference: CPU: IC2 Check Link (P.20) Telephone Line Interface (P.41) Cross Reference: Check Link (P.20) *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 7.3. Check Battery Charge Cross Reference: Note: Charge Circuit (P.41) CPU: IC2 Power Supply Circuit (P.39) Cross Reference: Note: Reset Circuit (Handset) (P.45) CPU: IC2 *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 7.4. Check Link **: Refer to Adjustment (P.24) Note: CPU: IC2 RF IC: IC1 *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF **: Refer to Adjustment (P.27). Note: CPU: IC2 RF IC: IC1 *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 7.5. Check Handset Transmission Cross Reference: Signal Route (P.44) 7.6. Check Handset Reception Cross Reference: Signal Route (P.44) *: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.65) or CIRCUIT BOARD (Handset) (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 8 ADJUSTMENTS (BASE UNIT) If your unit have below symptoms, adjust or confirm each item using remedy column from the table. Symptom Remedy* The base unit dose not respond to a call from handset. Make adjustments in item (A) The base unit dose not transmit or the transmit frequency is off. Make adjustments in item (B) The transmit frequency is off.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 8.2. How to change the channel *: Refer to Flow Solder Side View (P.66). 8.3. Adjustment Adjustment Items Test Mode Adjustment Point *Procedure • Confirm so that the reading of the Digital Voltmeter is 1.5V ± 0.5V. (A) RX VCO Confirmation (B) TX VCO Adjustment (C) TX Frequency Adjustment 3ch Talk - 3ch Talk T6 3ch Talk VC1 (D) TX Power Adjustment 3ch Talk T5 • Adjust T5 so that the reading of the RF VTVM is over 10dBm.
8.4. Adjustment Standard (Base Unit) FM Deviation Meter (G) Audio Analyzer Confirmation of VCO voltage Frequency Counter RF Volt Meter 50Ω SSG TXPOWER (C) DC Volt Meter (A), (B) (D) RX-VCO TX-VCO RF Volt Meter (E) T.P ( CH change at test mode) TXGND IC2 IC1 DC12V or AC adaptor 25 AF OSC Loop SIMULATOR IC6 Oscilloscope Note: (A) - (H) is refered to ADJUSTMENTS (BASE UNIT) (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 9 ADJUSTMENTS (HANDSET) If your unit have below symptoms, adjust or confirm each item using remedy column from the table. Symptom The movement of Battery Low Indicator is wrong. The base unit does not respond to a call from the handset. The base unit does not transmit or the transmit frequency is off. The transmit frequency is off.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 9.2. How to change the channel 9.3. Adjustment Adjustment Items Test Mode (A) Battery Low Confirmation 3ch Talk Adjustment Point - Procedure Check or Replace Parts 1. Set the power supply voltage to DC3.60V, and confirm so that the reading IC1 of oscillosope is High. 2. Set the power supply voltage to DC 3.40V, and confirm so that the reading of oscilloscope is Low. 1. Adjust T6 so that the reading of the Digital Voltmeter is 1.0V ± 0.1V.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 9.4. Adjustment Standard (Handset) (Component View) AF Volt Meter (H) IC2 150Ω 28 + 47µF (A) Battery Low Oscilloscope (G) Noise Squelch Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) (P.
(Flow Solder Side View) SSG 43.820MHz (E) RF Millivolt Meter (D) Frequency Counter 50Ω Audio (I), (J) Analyzer (F) FM Deviation Meter RF Volt Meter TXGND TXPOWER IC1 29 TX VCO DC Volt Meter RX VCO (C) DC Volt Meter Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) (P.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 10 RF SPECIFICATION 10.1. Base Unit Item TX Frequency TX Power Line Modulation factor Line Modulation factor (Max.) Data Modulation factor Line Output level Value 30.175 MHz ± 0.1kHz 8mW (3CH) 2.8 kHz~3.4 kHz 4.5 kHz~8.5 kHz 3 kHz~7 kHz 80mV ± 20mV Refer to -.* ADJUSTMENTS (BASE UNIT) (C) ADJUSTMENTS (BASE UNIT) (D) ADJUSTMENTS (BASE UNIT) (G) — — — TX Frequency TX Power Value 39.875 MHz ± 0.1kHz 4mW (3CH) Refer to -.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 12 FREQUENCY TABLE (MHz) Channel 1 2 3 4 5 6 7 8 9 10 BASE UNIT Transmit Frequency Receive Frequency 30.0750 39.7750 30.1250 39.8250 30.1750 39.8750 30.2250 39.9250 30.2750 39.9750 30.1000 39.8000 30.1500 39.8500 30.2000 39.9000 30.2500 39.9500 30.3000 40.0000 31 PORTABLE UNIT Transmit Frequency Receive Frequency 39.7750 30.0750 39.8250 30.1250 39.8750 30.1750 39.9250 30.2250 39.9750 30.2750 39.8000 30.1000 39.8500 30.1500 39.9000 30.2000 39.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 13 EXPLANATION OF CPU DATA COMMUNICATION 13.1. STAND-BY -> TALK, TALK -> STAND-BY *: The channel is changed if the noise interferes with the conversation.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 13.2.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 13.3.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 13.4. Ports for transmitting and receiving of data Handset: Base Unit: transmitting (TX) ... 36 Pin transmitting (TX) ... 17 Pin receiving (RX) ... 4 Pin receiving (RX) ... 10 Pin 13.5. Waveform of DATA used for cordless transmission and reception The DATA which is transmitted from the Handset to the Base Unit is combination of DATA 0, DATA 1, PSEUD.
ANTENNA H/S 10.
15 BLOCK DIAGRAM (HANDSET) Base ANTENNA RF FILTER CF1, CF2 RX VCO L6, C24 DUPLEXER DC 3.9V RF IC IC1 DPX1 RF AMP SPEAKER REC1 EXP MIX 1/2 Q1, T3 CONTROL LINE AUDIO SIGNAL RX LOOP RF -DATA -CLK -STB PLL OSC X1 MIC MC1 COM VC1 TX LOOP DC 3.9V 37 POWER CONTROL BATTERY 3.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 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) *Refer to EXPLANATION OF CPU DATA COMMUNICATION (P.32).
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 16.2. Power Supply Circuit The power supply to the CPU (Digital, Analog) and RF IC from AC Adaptor (+12V) is shown in the diagram below. The base unit power supply is DC12V. The handset´s power is supplied from 3.6V battery (Nickel-Cadmium battery) which is installed in the handset. Power supply for transmitter is turned on by a press of "Talk" key on the handset. During the stand-by mode, the unit stops transmitting but receive thhe signal.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 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.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 16.4. Charge Circuit Circuit Operation: When charging the handset on the base unit, the charge current is as follows; DC (JK2) → L8 → D6 → L7 → CHG+(Base) → [CHG+(Handset) → L4 → Q9 → BATT(1)....Battery....BATT(2) → L5 → CHG-(Handset)] → CHG+(Base) → L5, 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.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 16.6. Transmitter/Receiver Base Unit and Handset are mainly consists of RF(Radio Frequency) IC and CPU. Base Unit and Handset transmit/receive voice signal and data signal through the antenna on carrier frequency. Signal Pass : *Refer to CDL TX/RX in Signal Route (P.44). 16.6.1. Base to Handset Circuit Operation: The voice signal input from the TEL LINE interface goes to RF IC as shown in BLOCK DIAGRAM (BASE UNIT) (P.36).
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 16.6.2. Handset to Base Circuit Operation: The voice signal from the handset user is picked up by the microphone (MC1), voice signal passes through "Compressor" process to reduce noise as shown in BLOCK DIAGRAM (HANDSET) (P.37). And the voice is FM-modulated by VARICAP (DV1). The carrier frequency is generated by TX VCO. The transmitter power transistor Q4 is turned on/off by CPU (VTX).
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 16.7. Signal Route Each signal route is as follows.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 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.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 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) < 3.57V The CPU detects this level and “Recharge battery” LED starts flashing. • Power Down Battery voltage : V(Batt) < 3.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 18 CPU DATA (Base Unit) 18.1.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 19 CPU DATA (Handset) 19.1.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 20.3. Modification Procedure of Bridge 20 HOW TO REPLACE FLAT PACKAGE IC 1. Re-solder slightly on bridged portion. 20.1. Preparation 2. Remove remained solder along pins employing soldering iron as shown in below figure. • SOLDER Sparkle Solder 115A-1, 115B-1 or Almit Solder KR-19, KR19RMA • Soldering iron Recommended power consumption will be between 30 W to 40 W.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 21 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT) 50
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 22 CABINET AND ELECTRICAL PARTS LOCATION (HANDET) 51
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 23 ACCESSORIES AND PACKING MATERIALS 52
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 24 REPLACEMENT PARTS LIST Ref. No. 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.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Ref. No. ZD11 ZNR1 Part No.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Ref. No. R142 R143 R144 R145 R146 R148 R149 R150 R151 R152 R153 R154 R155 R156 R159 R160 R161 R166 R167 R170 R171 R172 R173 R174 R176 R180 R181 R186 R187 R188 R189 R190 R191 R192 R193 R194 Part No.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Ref. No. C129 C130 C131 C132 C133 Part No. ECUV1C104ZFV ECEA1AKA101 ECUV1C104KBV ECUV1C104KBV ECUV1H390JCV Part Name & Description Remarks Ref. No.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Ref. No. R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R72 R74 R75 R76 R77 R78 R79 R81 R82 R83 R84 R85 R86 R87 R91 R93 R94 R95 R96 R97 R98 R99 R101 R103 R105 R106 R107 R108 R109 R110 R111 R112 Part No.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF Ref. No. R102 Part No. ECUV1H333KBV Part Name & Description 0.033 Remarks S 24.3. ACCESSORIES AND PACKING MATERIALS Ref. No. A1 A2 A3 A4 P1 P2 P3 P4 Part No.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 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 for safety.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 26 SCHEMATIC DIAGRAM (Base Unit) 26.1. Base Unit VREG 1Vp-p 8MHz R158 NA R0603 Q21 SOT-23 19-21VGC/ TR8 GREEN SW1 PAGE SW2P RINGDET R80 R82 VTX CR-DET R87 1K R0603 PMUTE RF-CLK Q7 SOT-23 Q8 SOT-23 R97 8K2 R0603 C73 104 C0603 C68 0.
26.2.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 27 SCHEMATIC DIAGRAM (Handset) 27.1. Handset + C63 100uF/10V EC4\2.5 MINI L2 12uH L4 C64 103 C0603 R54 100K R0603 C65 15P C0603 R53 82 R0603 R55 39 R0603 Q7 STO-23 C66 15P C0603 3.
27.2. RF Unit (Handset) C2 C1 473 47UF/10V C0603 EC5/2.5 R1 330 R0603 41 VCC2 1 3 2 3 4 C42 + C44 + 47U/10V EC5/2.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 64
KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF 28 CIRCUIT BOARD (Base Unit) 28.1.
KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF 28.2. Flow Solder Side View T.
KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF 29 CIRCUIT BOARD (Handset) IC2 29.1.
KX-TC1205RUB / KX-TC1205RUW / KX-TC1205RUS / KX-TC1205RUF 29.2.
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF 69 I KXTC1205RUB KXTC1205RUW KXTC1205RUS KXTC1205RUF
