Panasonic KX-PRX120W Service Manual
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Panasonic KX-PRX120W Service Manual

Telephone equipment
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KX-PRXA10
(Handset)
(Charger Unit)
Configuration for each model
Model No
Base Unit
KX-PRX120
1
1 (PRXA10)
KX-PRXA10
1 (PRXA10)
(Base Unit)
Handset
Charger Unit Expandable
1
Up to 6
1
Telephone Equipment
KX-PRX120W
Model No.
KX-PRXA10W
Premium Design Phone with
Touchscreen
W: White Version
(for USA)
© Panasonic System Networks Co., Ltd. 2014
Unauthorized copying and distribution is a
violation of law.
ORDER NO. KM41403805CE
F13
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Summary of Contents for Panasonic KX-PRX120W

  • Page 1 (Handset) (Charger Unit) Configuration for each model Model No Base Unit Handset Charger Unit Expandable KX-PRX120 1 (PRXA10) Up to 6 KX-PRXA10 1 (PRXA10) © Panasonic System Networks Co., Ltd. 2014 Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-PRX120W/KX-PRXA10W WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.
  • Page 3 KX-PRX120W/KX-PRXA10W 10.1.2. Handset ------------------------------------------------44 15.5.5. Screws ------------------------------------------------- 89 10.1.3. Charger Unit ------------------------------------------45 15.5.6. Fixtures and Tools----------------------------------- 89 11 Measurements and Adjustments---------------------------46 11.1. Equipment Required -------------------------------------46 11.2. The Setting Method of JIG (Base Unit) -------------46 11.2.1. Connections-------------------------------------------46 11.2.2. How to install Batch file into P.C.-----------------47 11.2.3.

  • Page 4: Safety Precautions

    KX-PRX120W/KX-PRXA10W 1 Safety Precautions 1.1. For Service Technicians • Repair service shall be provided in accordance with repair technology information such as service manual so as to prevent fires, injury or electric shock, which can be caused by improper repair work.

  • Page 5: Suggested Pbf Solder

    KX-PRX120W/KX-PRXA10W 2.2.1. Suggested PbF Solder There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper (Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufacturer’s specific instructions for the melting points of their products and any precautions for using their product with other materials.

  • Page 6: Specifications

    KX-PRX120W/KX-PRXA10W 3 Specifications S t anda rd: M odul ation : D E C T 6.0 (Digital Enhanced Cordless DECT: GFSK(Gaussian Filtered Shift Keying) WiFi: DSSS/OFDM T e le com m uni ca tio n s, 6.0) Bluetooth: FHSS WiFi IEEE802.11b/g/n Bluetooth: version 3.0, Class 2...

  • Page 7: Technical Descriptions

    KX-PRX120W/KX-PRXA10W 4 Technical Descriptions 4.1. Block Diagram (Base Unit) Reset...

  • Page 8: Circuit Operation (Base Unit)

    KX-PRX120W/KX-PRXA10W 4.2. Circuit Operation (Base Unit) 4.2.1. Outline Base Unit consists of the following ICs as shown in Block Diagram (Base Unit) (P.7). • DECT BBIC (Base Band IC): IC7 - Handling all the audio, signal and data processing needed in a DECT base unit...

  • Page 9: Power Supply Circuit

    KX-PRX120W/KX-PRXA10W 4.2.2. Power Supply Circuit The power is supplied to the DECT BBIC, QSPI FLASH MEMORY and EEPROM from AC Adaptor (+5.5 V) as shown in Fig.101. The power supply is as follows; • DECT BBIC (IC7): DC Jack (+5.5 V) → IC2 → IC7 DC Jack (+5.5 V) →...

  • Page 10: Telephone Line Interface

    KX-PRX120W/KX-PRXA10W 4.2.3. Telephone Line Interface • Bell signal detection • Clip signal detection • ON/OFF hook circuit Bell & Clip (: Calling Line Identification Presentation: Caller ID) signal detection: In the standby mode, Q3 is open to cut the DC loop current and decrease the ring load.

  • Page 11: Block Diagram (Handset)

    KX-PRX120W/KX-PRXA10W 4.3. Block Diagram (Handset) 4.3.1. KX-PRXA10 The following functions are controled by Android BBIC(MT6515). Wireless function - DECT - WiFi - Bluetooth Sensor - Accelerometer - Proximity sensor - Photometer Camera - Front Camera External Memory - Micro SD Card...
  • Page 12 KX-PRX120W/KX-PRXA10W...

  • Page 13: Circuit Operation (Charger Unit)

    KX-PRX120W/KX-PRXA10W 4.4. Circuit Operation (Charger Unit) 4.4.1. Power Supply Circuit The power supply is as shown. For KX-PRXA10 AC Adaptor...

  • Page 14: Signal Route

    KX-PRX120W/KX-PRXA10W 4.5. Signal Route SIGNAL ROUTE SIGNAL ROUTE DTMF TONE (BASE UNIT) TEL OUT IC7 (23) - R116 - R29 - C22 - Q5 - Q3 - D3 (to Tel Line) P1 - B (BASE UNIT) DTMF TONE D3 - Q3 - Q5 - R20 - C56 - R117 - IC7 (21)
  • Page 15 KX-PRX120W/KX-PRXA10W SIGNAL ROUTE SIGNAL ROUTE (BASE UNIT) Message Play IC421(2) - IC7 (54) - IC7 (23) - R116 - R29 - C22 - Q5 - Q3 - D3 (to Tel Line) P1 - B (HANDSET) Memo/OGM MIC - (internal parts are omitted) - DECT Antenna To Base...

  • Page 16: Location Of Controls And Components

    KX-PRX120W/KX-PRXA10W 5 Location of Controls and Components Refer to the Operating Instructions. Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server. 6 Installation Instructions Refer to the Operating Instructions. Note: You can download and refer to the Operating Instructions (Instruction book) on TSN Server.

  • Page 17: Service Mode

    KX-PRX120W/KX-PRXA10W 8 Service Mode 8.1. Engineering Mode 8.1.1. Base Unit Important: Make sure the address on LCD is correct when entering new data. Otherwise, you may ruin the unit.       Use existing Panasonic handset for this operation. (Example : KX-TGA860) , because KX-PRXA10  don't have the following menu.  *Example when using KX-TGA860 existing Panasonic handset for  Soft keys c } (Off/Power) Navigator key/ { ECO/R} (Locator) ECO: Eco mode shortcut key R: Recall/Flash Dial keypad H/S LCD H/S key operation 1).   Register a Handset to a Base Unit. (*1)

  • Page 18: Handset

    KX-PRX120W/KX-PRXA10W Frequently Used Items (Base Unit) ex.) Items Address Default Data New Data Remarks C-ID (FSK) sensitivity 06 B9/06 B8 00/51 00/39 00/28 When the hex change from 00/51 to 00/39 or (3 dB up) (6 dB up) 00/28, gain increases by 3 dB or 6 dB.

  • Page 19: Eeprom Layout (Handset)

    And the means which rewrites setting value by key operation of handset has not been implemented, either. 8.3. Copying User Data when Repairing You can copy the handset phonebook to another (compatible Panasonic) handset. This will help to save the original phonebook data which the customer has registered. Refer to the following procedures.

  • Page 20: How To Clear User Setting

    KX-PRX120W/KX-PRXA10W 8.4. How to Clear User Setting Units are reset to the Factory settings by this operation (Erase stored Phone numbers, Caller list and etc.) Note: • Some menus are not reset. Refer to Operating Instructions (P.16). • The reset menus differ depending on the following operations.

  • Page 21: Resetting Only Handset

    KX-PRX120W/KX-PRXA10W 8.4.2. Resetting only handset The only handset is reset by doing the following steps Handset Install the charged batteries into the handset. Press "*#72627664*#" to enter Factyory Mode. Factory Reset --> Factory reset2. Keep pressing Power Button at language select screen and select shutdown.

  • Page 22: Troubleshooting Guide

    KX-PRX120W/KX-PRXA10W 9 Troubleshooting Guide 9.1. Troubleshooting Flowchart Flow Chart Not working Power ON Handset Check Power (Handset) No response Touch panel Operation Check Touch Panel Not working Check Power (Base Unit) Power ON Base Unit DECT Link Check DECT Link...
  • Page 23 KX-PRX120W/KX-PRXA10W Previous Page Camera Operation Check Camera Part Flash Light Operation Check Flash Light Part for KX-PRX150 only. Sensors Operation Check Sensor Part (Photometer, Magnetmeter, Proximity sensor, Accelerometer) WiFi, BT, GPS Operation Check WiFi, BT, GPS Part Cross Reference: Check Power (Handset) (P.25) Check Touch Panel (P.28)

  • Page 24: Check Power

    KX-PRX120W/KX-PRXA10W 9.1.1. Check Power 9.1.1.1. Check Power (Base Unit) Is the AC Adaptor inserted into AC outlet? (*1) Is input of IC1 about 5.5 V - 8 V? Check C32, C36 are not shorted. Check AC Adaptor. Is the output voltage of IC2 about 2.85 V? Check Power Supply Circuit.
  • Page 25 KX-PRX120W/KX-PRXA10W 9.1.1.2. Check Power (Handset) Does not power on Cleaning the battery terminal. Did the problem fix? Is the voltage of the battery Re-charge the battery 3.7V or under? Is the voltage of the battery Did the problem fix? 3.7V or under?

  • Page 26: Check Dect Link

    KX-PRX120W/KX-PRXA10W 9.1.2. Check DECT Link 9.1.2.1. Base Unit Does Base Unit make link with normal working Base Unit is OK. Check Handset. Handset? Is the voltage of VDD3 about 2.85 V? Check around Power Supply Circuit. Refer to Check Point...(A).
  • Page 27 KX-PRX120W/KX-PRXA10W Is the Frequency Drift OK? Refer to Check Point...(L). Is the Sensitivity Receiver OK? Refer to Check Point...(M). Is the Timing OK? Replace with a new Circuit Board. Refer to Check Point...(N). Is the Power RAMP OK? Refer to Check Point...(O).

  • Page 28: Check Touch Panel

    KX-PRX120W/KX-PRXA10W 9.1.3. Check Touch Panel Touch Panel Does Not Response Update software. Did the Problem Fix? Replace with a New Touch Panel. Did the Problem Fix? Replace with a New Circuit Board.

  • Page 29: Check Dect Rf Part

    KX-PRX120W/KX-PRXA10W 9.1.4. Check DECT RF part 9.1.4.1. Finding out the Defective part 1. Prepare Regular HS (Handset) and Regular BU (Base unit). 2. a. Re-register regular HS (Normal mode) to Base Unit (to be checked). If this operation fails in some ways, the Base Unit is defective.

  • Page 30: Check Handset Transmission

    KX-PRX120W/KX-PRXA10W 9.1.5. Check Handset Transmission Handset Voice cann't be transmitted Use Regular Base Unit Check Signal Route of DECT has Problem? Did problem fix? Base Unit Check Factory Mode "Microphone Check" Re-solder the wire. Is the lead wire of MIC...

  • Page 31: Check Handset Reception

    KX-PRX120W/KX-PRXA10W 9.1.6. Check Handset Reception 9.1.6.1. Receiver Part No sound is heard from handset receiver Use Regular Base Unit Check Signal Route of DECT has Problem? Did problem fix? Base Unit Check Factory Mode "Receiver and headset Check" Cleaning the hole of receiver.
  • Page 32 KX-PRX120W/KX-PRXA10W 9.1.6.2. Speaker Part No sound or noise from Speaker Sound setting will be in Silent mode, so try Factory reset. Did the problem fix? Check Factory Mode Re-assemble the Speaker. "Speaker Check" Did the problem fix? Replace with a new Speaker.

  • Page 33: Check Tam Operation Part

    KX-PRX120W/KX-PRXA10W 9.1.7. Check TAM Operation Part Is there a TAM icon on the Handset display? Turn on the Answering System. Is the voltage of VDD3 of Base Unit about 2.85 V Check Power Supply Circuit. and VDD1 about 1.8 V, VDD4 about 3.0 V, VDD5 about 3.0 V?

  • Page 34: Check Sd Card Part

    KX-PRX120W/KX-PRXA10W 9.1.8. Check SD Card Part SD card can't be read and write Exchange for a new micro SD card Did the problem fixed? Clean the contacts of SD card socket Update software. Did the problem fix? Replace with a new circuit board 9.1.9.

  • Page 35: Check Sensor Part

    KX-PRX120W/KX-PRXA10W 9.1.10. Check Sensor Part Sensor doesn't work (Photometer, Proximity sensor, Accelerometer) Update software. Did the problem fix? Replace with a new circuit board 9.1.11. Check WiFi, BT Part WiFi, BT, operation is NG Clean the antenna contact(WiFi, BT). Did the problem fix?

  • Page 36: Troubleshooting By Symptom (Base Unit And Charger Unit)

    KX-PRX120W/KX-PRXA10W 9.2. Troubleshooting by Symptom (Base Unit and Charger Unit) If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester (*1) or not. Remedy (*2) Symptom You have DECT Tester.
  • Page 37 KX-PRX120W/KX-PRXA10W Items Check Procedure Check or Point Replace Parts 1. Connect Telephone Socket to Tel-simulator which is connected with 600 Ω. (H)* Hookswitch Check with P1, Q3, R14, DC Characteristics 2. Set line voltage to 48 V and line current to 40mA at off-hook condition of R15, Q4, R16, normal telephone.

  • Page 38: Check Point (Charger Unit)

    KX-PRX120W/KX-PRXA10W Items Check Procedure Check or Point Replace Parts (N)* Sensitivity Receiver Follow steps 1 to 6 of (J). IC7, Confirmation ANTI_TP 7.Set DECT tester power to -88 dBm. C802~C806, 8.Confirm that the BER is < 1000 ppm. C809~C813, C820, C837,...

  • Page 39: Troubleshooting By Symptom (Handset)

    KX-PRX120W/KX-PRXA10W 9.3. Troubleshooting by Symptom (Handset) If your unit has below symptoms, follow the instructions in remedy column. Remedy Symptom 1. Clean the Battery Terminal. Battery strength is not indicated correctly by Battery icon. 2. If not fixed, update software.

  • Page 40: Function Check At Factory Mode

    KX-PRX120W/KX-PRXA10W 9.4. Function Check at Factory Mode Items Operations 1) Enter "*#72627664*#" at key pad screen and go to the Factory Mode. Enter to Factory Mode 2) Select " /Manual Test" and go to Menu screen.
  • Page 41 KX-PRX120W/KX-PRXA10W Items Checking Items Operations Microphone Check 1)Select "活筒測試". 2) Select " / REC" and record voice for 3 seconds. 3), 6) Confirm that 3) Select " / PLAY". recorded voice is played from speaker. 4) Insert headset. 5) Select "...
  • Page 42 KX-PRX120W/KX-PRXA10W Items Checking Items Operations (For KX-PRX120 only) Camera Check 1) Select Camera icon. 2) Press Shutter Button. 3) Confirm that photograph 3) Play Photograph. are played. 4) Press Home Key and go back to home screen. (For KX-PRX150 only) 1) Select Camera icon.

  • Page 43: Disassembly And Assembly Instructions

    KX-PRX120W/KX-PRXA10W 10 Disassembly and Assembly Instructions 10.1. Disassembly Instructions 10.1.1. Base Unit 2 Screws Remove the 2 screws to remove the cabinet cover. Remove the solders to remove the main P.C. board. Cabinet cover Main P.C. board Solders...

  • Page 44: Handset

    KX-PRX120W/KX-PRXA10W 10.1.2. Handset ① Screws Remove the special screw. Cabinet cover  Cabinet body  ② Insert a plastic card. (Ex. Used SIM card etc.) between the cabinet body and the cabinet cover, then pull it along the gap to open the cabinet. ③...

  • Page 45: Charger Unit

    KX-PRX120W/KX-PRXA10W 10.1.3. Charger Unit Remove the screw to remove the cabinet cover. Cabinet cover Remove the screw to remove the Guide Connector. Guide Connector USB Jack : For PNLP1048 Tel Jack : For PNLP1049 Remove the solders to remove the 2 charge terminals to remove the Main P.C board.

  • Page 46: Measurements And Adjustments

    KX-PRX120W/KX-PRXA10W 11 Measurements and Adjustments This chapter explainms the measuring equipment, the JIG connection, and the PC setting method necessary for the measurement in Troubleshooting Guide (P.22) 11.1. Equipment Required • Digital multi-meter (DMM): it must be able to measure voltage and current.

  • Page 47: How To Install Batch File Into P

    KX-PRX120W/KX-PRXA10W 11.2.2. How to install Batch file into P.C. Insert the Batch file CD-ROM into CD-ROM drive and copy PNZZTG**** folder to your PC (example: D drive). On your computer, click [Start], select Programs Open an MS-DOS mode window.

  • Page 48: Adjustment Standard (Base Unit)

    KX-PRX120W/KX-PRXA10W 11.3. Adjustment Standard (Base Unit) When connecting the simulator equipment for checking, please refer to below. 11.3.1. Bottom View Frequency Counter (J)(K)(L)(M)(N) (O)(P) ANT_1 ANT_2 DECT Tester Terminal CTS60 R363 Q363 Q362 Q361 R361 R366 VDD3 R362 DC Power...

  • Page 49: Adjustment Standard (Charger Unit)

    KX-PRX120W/KX-PRXA10W 11.4. Adjustment Standard (Charger Unit) When connecting the simulator equipment for checking, please refer to below. 11.4.1. Bottom View PNLB1222Z -IG Charge- (GND) Charge+ KX-PRX120 Charger unit...

  • Page 50: Things To Do After Replacing Ic Or X'tal

    KX-PRX120W/KX-PRXA10W 11.5. Things to Do after Replacing IC or X'tal If repairing or replacing BBIC (FLASH type), EEPROM and X'tal, it is necessary to download the required data such as Programming data or adjustment data, etc in memory. The set doesn't operate if it is not executed.

  • Page 51: Rf Specification

    KX-PRX120W/KX-PRXA10W 11.6. RF Specification 11.6.1. Base Unit Item Value Refer to -. * TX Power 19 dBm ~ 25 dBm Check Point (Base Unit) (J) Modulation -350±50/+350±50 kHz/div Check Point (Base Unit) (K) Frequency Offset < ±50kHz Check Point (Base Unit) (L) Frequency Drift ±35kHz/ms...

  • Page 52: Bluetooth Frequency Table

    KX-PRX120W/KX-PRXA10W 11.8. Bluetooth Frequency Table Frequency (MHz) Frequency (MHz) Frequency (MHz) 2402 2435 2468 2403 2436 2469 2404 2437 2470 2405 2438 2471 2406 2439 2472 2407 2440 2473 2408 2441 2474 2409 2442 2475 2410 2443 2476 2411 2444...

  • Page 53: Miscellaneous

    KX-PRX120W/KX-PRXA10W 12 Miscellaneous 12.1. How to Replace the 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.

  • Page 54: How To Install The

    KX-PRX120W/KX-PRXA10W 12.1.3. How to Install the IC 1. Temporarily fix the FLAT PACKAGE IC, soldering the two marked pins. *Check the accuracy of the IC setting with the corresponding soldering foil. 2. Apply flux to all pins of the FLAT PACKAGE IC.

  • Page 55: How To Replace The Shield Case

    KX-PRX120W/KX-PRXA10W 12.2. How to Replace the Shield Case 12.2.1. Preparation • PbF (: Pb free) Solder • Soldering Iron Tip Temperature of 700°F ± 20°F (370°C ± 10°C) Note: We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil.

  • Page 56: How To Install The Shield Case

    KX-PRX120W/KX-PRXA10W 12.2.4. How to Install the Shield Case Note: • If you don’t have special tools (ex. Hot air disordering tool), conduct the following operations. • Shield case’s No. : PNMC1033Z 1. Put the shield case. 2. Solder the surroundings.

  • Page 57: Terminal Guide Of The Ics, Transistors And Diodes

    KX-PRX120W/KX-PRXA10W 12.3. Terminal Guide of the ICs, Transistors and Diodes 12.3.1. Base Unit (Reverse View) PNWIRX110UAH C3FBLY000124 C3FBMY000286 B1ZBZ0000074 DSC7003S0L C1CB00003541 B1ACGP000007 Cathode Cathode Anode Anode B1ABDM000001, B1ADGE000012 PQVDMD5S PQVDRLZ20A B0DDCD000001 B1ABDF000017, B1ABCE000009...

  • Page 58: Schematic Diagram

    KX-PRX120W/KX-PRXA10W 13 Schematic Diagram 13.1. For Schematic Diagram 13.1.1. Base Unit (Schematic Diagram (Base Unit)) Notes: 1. DC voltage measurements are taken with voltmeter from the negative voltage line. 2. The schematic diagrams may be modified at any time with the development of new technology.

  • Page 59: Schematic Diagram (Base Unit)

    KX-PRX120W/KX-PRXA10W 13.2. Schematic Diagram (Base Unit) ANT_1 ANT2_TP ANT1_TP ANT_2 C851 C853 W 0.15mm W 0.15mm L 22+/-4mm L 22+/-4mm 1st or 4th layer 1st or 4th layer DA802 W 0.15mm L 22+/-4mm W 0.15mm 1st or 4th layer L 20+/-2mm...
  • Page 60 KX-PRX120W/KX-PRXA10W Loop current 680p LINE_DC *R30 L1R L1T 100k (1005) 680p C155 TP10 *R17 *R13 *R20 R116 2.7k 2.2k 100k *R12 D5 NC 2.7k +1.8V +1.8V D6 NC Tx AF Caller ID Bell signal 180k 4.7M 680p +2.85V 180k 4.7M 680p 1.8V...

  • Page 61: Schematic Diagram (Handset)

    KX-PRX120W/KX-PRXA10W 13.3. Schematic Diagram (Handset) 13.3.1. KX-PRXA10 Note: AFC > 3G_TX_VGA > APC > 3G_VBI AS U201-I GPIO_SUB_CMPDN PWM4 U201-A GPIO_SUB_CMRST CMFLASH AF20 GSM_RX_IP ASM_VCT1 DL_I_P BPI_BUS0 AF21 GSM_RX_IN ASM_VCT2 DL_I_N BPI_BUS1 AG21 GSM_RX_QP ASM_VCT3 CMMCLK CMMCLK DL_Q_P BPI_BUS2 AH21...
  • Page 62 KX-PRX120W/KX-PRXA10W U201-F ED31 ED31 ED30 /ECS0 ECS0_B ED30 ED29 /ECS1 ED29 ECS1_B ED28 ED28 ED27 EWR# /EWR ED27 ERAS# ED26 ERAS_WAIT_B ED26 ED25 ECAS# ECAS_ADV_B ED25 ED24 ECKE0 ED24 ECKE0 ED23 ED23 ED22 DQM0 EDQM0 ED22 ED21 DQM1 EDQM1 ED21...
  • Page 63 KX-PRX120W/KX-PRXA10W MP Test Points Charger 1. Close to Battery Connector. (Rsense (R312) <10mm) UTXD1 2. Main path should be 40mil. URXD1 (VBUS -> U301's E, -> U301's C -> R312 -> VBAT) 3. Star connection from R312 to BAT Connector...
  • Page 64 KX-PRX120W/KX-PRXA10W VBAT U303 AUDIO P8 VBAT_SPK1 C311 differential 0603 P7 VBAT_SPK2 2.2uF SPK1_P P12 SPK1_N P5 VBI_P B301 N5 VBI_N SPKP C399 SPK2_P P11 N3 AUD1_P 0402 SPK2_N B302 100pF N4 AUD1_N SPKN ISENSE/BSTSNS 4mil C304 100nF DRIVER ISINK0 AUD2_P...
  • Page 65 KX-PRX120W/KX-PRXA10W MTK MIC VMIC Close to BB Close to MIC 0402 R401 Digital Microphone is reserved R405 1.5K B401 C430 1uF MICP0 [11] MICP_ANDROID C431 0402 0402 10uF B402 100pF C428 C432 1uF 0603 MICN0 [11] MICN_ANDROID 0402 C434 C433...
  • Page 66 KX-PRX120W/KX-PRXA10W B403 [11] MICP 0402 MICP MIC301 C401 MICN B404 33pF [11] MICN 0402 0402 C410 C411 33pF 33pF 1 J405 1 J406 B405 SPK1 C412 [3] SPKP 0402 [3] SPKN 33pF B406 SPEAKER C414 C413 0402 0402 33pF 33pF...
  • Page 67 KX-PRX120W/KX-PRXA10W C601 1nF SYSCLK 0402 R601 NC VTCXO_PMU 0402 R602 0R 0402 U601 X601 XO1_/_REF_IN LNA4P BSI1_CLK LNA4N DATA1 30 MT6163-QFN BSI1_CS1 DATA0 BSI1_DATA BSI1_CS0 LNA2P LNA2N TX_LB1=GGE850/900 TX_HB1 TX_HB1=GGE1800/1900 TX_LB1 LNA7=850 LNA6=900 LNA4=1800 LNA2=1900 LNA7P LNA7N LNA6P LNA6N VRF18_PMU...
  • Page 68 KX-PRX120W/KX-PRXA10W S4B VDD1=1.8V, VDD2=1.20V, VDDCA, VDDQ=1.20V VDD1 : Core 1 Reference Pin for Output DVDD18_EMI Drive Strength Calibration U501 VDD1 C501 C502 VDD1 0402 VDD2 : Core 2 VDD1 DVDD12_EMI 100nF 2.2uF VDD1 eMMC VDD2 0402 0402 VDD2 C505 C503...
  • Page 69 KX-PRX120W/KX-PRXA10W LCM Connector ICVE21184E DPI_B3_EMIF [2] DPI_B3 DPI_B0_EMIF [2] DPI_B0 DPI_B5_EMIF [2] DPI_B5 [2] DPI_B6 DPI_B6_EMIF J800 DPI_B0_EMIF U802 DPI_B1_EMIF DPI_B2_EMIF ICVE21184E DPI_B3_EMIF DPI_G3_EMIF DPI_B4_EMIF [2] DPI_G3 DPI_B5_EMIF [2] DPI_B1 DPI_B1_EMIF DPI_B6_EMIF [2] DPI_B2 DPI_B2_EMIF DPI_B7_EMIF [2] DPI_B4 DPI_B4_EMIF DPI_G0_EMIF...
  • Page 70 KX-PRX120W/KX-PRXA10W BACKLIGHT DRIVER 0402 C812 VBAT LEDA VOUT PGND 8 LEDK1 D1 7 [2] PWM1 U801 D2 6 ISET LEDK2 LEDK3 LEDK4 LEDK5 LEDK6 [2,3,7] KROW0 [3] PWRKEY [2,7] KCOL1 SW802 SW801 [2,7] KCOL1 [2,3,7] KROW0 [2,3] KCOL0 SW803 [2] KROW1...
  • Page 71 KX-PRX120W/KX-PRXA10W WIFI/BT U1001-B 0402 ANT1002 WFLDO U1002 R1011 A1 RF_IOP_WBT ANT1001 0402 0402 AVDD33_TX_WBT 0402 0402 1.5 pF 3.3 pF C1023 DIFFP C1022 0402 C1039 18pF R1018 2pF NC/DC AVSS33_PA C1060 C1025 10pF 0402 DIFFN 0402 R1012 C1061 C1028 L1015 AVSS33_PA 0.5pF...
  • Page 72 KX-PRX120W/KX-PRXA10W VDD1V8_PMU VDD28_PMU MC3DA3 If DVDDIO_SDIO=1.8V, please change SDIO driving MC3DA2 level from level_0 to level_4 by SW. (IO Level) MC3DA1 (MSDC IO Level) MC3DA0 0402 0402 MC3CMD_BB C1031 C1032 100nF 100nF MC3CLK_BB U1001-E RTCCLK_O RTCCLK [2,3] RTC_GPIO_2V8 R1024 VRTC...
  • Page 73 KX-PRX120W/KX-PRXA10W T-flash Card VMCH C1401 C1402 0603 0402 4.7uF J1401 0402 R1401 [2] MC1DA1 DAT1 R1402 [2] MC1DA0 DAT0 0402 SHIELD VSS2 R1403 SHIELD [2] MC1CK 0402 SHIELD 0402 R1404 [2] MC1CM0 SHIELD R1405 0402 [2] MC1DA3 CD/DAT3 R1406 [2] MC1DA2...
  • Page 74 KX-PRX120W/KX-PRXA10W UART COMMUNICATION [3,4,7,8,11,12] VBAT R1611 0402 0402 R1626 R1612 100R VBAT UTXD_DECT [12] [2] URXD_ANDROID R1613 R1627 100R URXD_DECT [12] [2] UTXD_ANDROID R1642 0402 0402 R1620 10K R1617 100R [2] GPIO84_ANDROID PON_DECT [12] 0402 0402 C1611 0402 0402 R1635...
  • Page 75 KX-PRX120W/KX-PRXA10W [12] T1702 [12] +1.8V Y1-CURRENT [12] 0402 R1740 0402 0402 R1741 R1753 GND_SIGNAL R1754 0402 GND_SIGNAL R1743 [11] EINT_DECT [11] GPIO_DECT 0402 R1745 [11] PON_DECT R1744 [11] URXD_DECT 0402 0402 [11] UTXD_DECT X1-CURRENT [12] T1703 [11] RESET_DECT GND_SIGNAL 0402...
  • Page 76 KX-PRX120W/KX-PRXA10W +1.8V +1.8V C1720 100nF U1706 U1705 [12] Y1-CURRENT Y2-CURRENT [12] C1722 X1-CURRENT [12] 0402 C1721 /HOLD C1760 0402 0603 2.2uF 100nF GND_SIGNAL STM CKM IC_MEM_W25Q80DW_NEW1 GND_SIGNAL GND_SIGNAL IC_EEPROM_BR24T16FJ-W GND_SIGNAL GND_SIGNAL GND_SIGNAL C1723 0402 100nF +1.8V R1710 JTAG_DECT P0_2/SDA2/UTX2 CP_VOUT1...

  • Page 77: Schematic Diagram (Charger Unit)

    KX-PRX120W/KX-PRXA10W 13.4. Schematic Diagram (Charger Unit) 9 8 6 VBUS TP for Charger contacts soldering 10 11 7 R1 1 TP for AC adaptor soldering KX-PRX120 SCHEMATIC DIAGRAM (Charger Unit)

  • Page 78: Printed Circuit Board

    KX-PRX120W/KX-PRXA10W 14 Printed Circuit Board 14.1. Circuit Board (Base Unit_Main) 14.1.1. Component View C851 C853 DA802 ANT_2 ANT_1 C858 C804 R109 C856 C802 DA801 C822 C812 C811 C810 L803 C837 C806 C805 C864 R615 C305 C137 C136 C171 C320 IC351...

  • Page 79: Bottom View

    KX-PRX120W/KX-PRXA10W 14.1.2. Bottom View VDD3 2.85V ANT_1 ANT_2 R363 Q363 Q362 Q361 R361 R366 VDD3 R362 R365 R368 R364 R367 Q602 3.0A GND_C DC_IN (CLK:10.368 MHz) JTAG C423 Q421 IC401 R424 R657 C421 C809 IC421 C808 C617 IC431 VDD2 2.4V...

  • Page 80: Circuit Board (Handset)

    KX-PRX120W/KX-PRXA10W 14.2. Circuit Board (Handset) 14.2.1. KX-PRXA10 14.2.1.1. Component View SW802 J401 J802 J1701 J405 J406 U1705 U1005 J401 SW801 U1607 U1001 U1707 SW803 U1706 J1401 U1606 U1605 X201 X601 U303 U601 U201 J800 U501 U801 G8150-03 KX-PRXA10 CIRCUIT BOARD (Handset_Main (Component View))
  • Page 81 KX-PRX120W/KX-PRXA10W 14.2.1.2. Bottom View U1503 REC2 CON802 F2,3A BK301 IO801 MIC- MIC+ MIC301 KX-PRXA10 CIRCUIT BOARD (Handset_Main (Bottom View))

  • Page 82: Circuit Board (Charger Unit)

    KX-PRX120W/KX-PRXA10W 14.3. Circuit Board (Charger Unit) 14.3.1. Component View PNLB1222Z -IG PRX120 CIRCUIT BOARD (Charger unit (Component View))

  • Page 83: Exploded View And Replacement Parts List

    KX-PRX120W/KX-PRXA10W 15 Exploded View and Replacement Parts List 15.1. Cabinet and Electrical Parts (Base Unit) PCB1 (*1) Ref.No. Figure 2.6 x 8 mm Note: (*1) Attach the double-faced tape to the exact location described above.

  • Page 84: Cabinet And Electrical Parts (Handset)

    KX-PRX120W/KX-PRXA10W 15.2. Cabinet and Electrical Parts (Handset) E103 E106 E105 E104 E103 E111 E110 E102 E101 E112 E113 E101 E107 E108 E109 PCB100 Ref.No. Figure 1.4 x 4 mm * + (PLUS) Screw driver...

  • Page 85: Cabinet And Electrical Parts (Charger Unit)

    KX-PRX120W/KX-PRXA10W 15.3. Cabinet and Electrical Parts (Charger Unit) 200-1 200-2 200-8 PCB200 200-3 200-4 200-7 200-5 Ref.No. Figure 2 8 mm 200-6...

  • Page 86: Accessories

    KX-PRX120W/KX-PRXA10W 15.4. Accessories Note: (*1) For KX-PRX120W...

  • Page 87: Replacement Part List

    CABINET BODY ABS-HB ERJ2GEJ272 2.7k PQJJ1T039L JACK, MODULAR K2ECYZ000002 JACK, DC ERJ12YJ120 ERJ12YJ270 PNLA1068Z ANTENNA D0GA104JA021 100k PNKF1155Y1 CABINET COVER PS-HB PQSH1A117Z PUSH SWITCH ERJ2GEJ393X D0GA104JA021 100k KXPRX120BH BASE UNIT without Name Plate (RTL) ERJ2GEJ474X 470k (for KX-PRX120W) ERJ2GE0R00 ERJ3GEYJ821 ERJ3GEY0R00...

  • Page 88: Handset

    KX-PRX120W/KX-PRXA10W Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks ERJ2GEJ823 ECUE1H100DCQ 10p D0GA102JA021 1k ECUV1A105KBV 1 ERJ2GEJ823 ECUE1C103KBQ 0.01 D0GA102JA021 1k C136 ECUE1H100DCQ 10p D0GA124JA015 120k C137 ECUE1H100DCQ 10p D0GA392JA015 3.9k...

  • Page 89: Screws

    KX-PRX120W/KX-PRXA10W Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks M01111091300 SPACER, SPEAKER FRONT PNLV226KZ AC ADAPTOR (for Charger Unit) M81101016730 CABINET COVER PC-V0 PQJA10075Z CORD, TELEPHONE M01111091400 SPACER, TP 15.5.5. Screws M01114000010 WATER LABEL M02100000028 CABINET COVER ASS’Y...

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