Panasonic KX-WT115CE Service Manual
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Panasonic KX-WT115CE Service Manual

Panasonic KX-WT115CE Service Manual

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DECT Portable Station
KX-WT115CE
Model No.
(for Europe)
© Panasonic System Networks Co., Ltd. 2010
Unauthorized copying and distribution is a violation
of law.
ORDER NO. KMS1010787CE

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Summary of Contents for Panasonic KX-WT115CE

  • Page 1 ORDER NO. KMS1010787CE DECT Portable Station KX-WT115CE Model No. (for Europe) © Panasonic System Networks Co., Ltd. 2010 Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-WT115CE TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions -----------------------------------------------4 10 Disassembly and Assembly Instructions -------------- 34 1.1. For Service Technicians ----------------------------------4 10.1. Disassembly Instructions ------------------------------ 34 2 Warning --------------------------------------------------------------4 10.1.1. Handset ----------------------------------------------- 34 2.1. About Lead Free Solder (PbF: Pb free) --------------4 10.1.2.
  • Page 3 KX-WT115CE 14 Printed Circuit Board---------------------------------------- --55 14.1. Circuit Board (Handset_Main)---------------------- --55 14.1.1. Component View---------------------------------- --55 14.1.2. Bottom View---------------------------------------- --56 14.2. Circuit Board (Handset_LED) ---------------------- --57 14.3. Circuit Board (Charger Unit) ------------------------ --58 14.3.1. Component View---------------------------------- --58 14.3.2. Bottom View---------------------------------------- --58 15 Exploded View and Replacement Parts List -------- --59 15.1.

  • Page 4: Safety Precautions

    KX-WT115CE 1 Safety Precautions 1. Before servicing, unplug the AC power cord to prevent an electric shock. 2. When replacing parts, use only the manufacturer's recommended components. 3. Check the condition of the power cord. Replace if wear or damage is evident.

  • Page 5: Suggested Pbf Solder

    KX-WT115CE 2.1.1. 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-WT115CE 3 Specifications Handset Charger Unit Standard: DECT= (Digital Enhanced Cordless Telecommunications) GAP= (Generic Access Profile) Power Source: Rechargeable Ni-MH battery AC Adaptor Number of Channels: 120 Duplex Channels Frequency Range: 1.88GHz to 1.9GHz Duplex Procedure: TDMA (Time Division Multiple Access)

  • Page 7: Technical Descriptions

    CHG_DET RF part CHG_CTL RXON RSTN RESET TXON CHARGE VBAT BATTERY BBIC Receiver HSSPOUTP Headset Jack LOUT HSMIP 4.0V VBAT CHARGE HEADSET_DET (KEY) CP_OFF PUMP (BELL) KEY_LED BELL_LED Monitor SP SPOUTP SPOUTN CKM/STM CKM//STM (LCD) KEYS KX-WT115CE BLOCK DIAGRAM (Handset)

  • Page 8: Block Diagram (Handset_Rf Part)

    KX-WT115CE 4.2. Block Diagram (Handset_RF Part) TXON DA801 RXON KX-WT115CE BLOCK DIAGRAM (Handset_RF Part)

  • Page 9: Circuit Operation (Handset)

    KX-WT115CE 4.3. Circuit Operation (Handset) 4.3.1. Outline Handset consists of the following ICs as shown in Block Diagram (Handset) (P.7). • DECT BBIC (Base Band IC): IC1 - All data signals (forming/analyzing ACK or CMD signal) - All interfaces (ex: Key, Detector Circuit, Charge, EEPROM, LCD) •...

  • Page 10: Charge Circuit

    KX-WT115CE 4.3.3. Charge Circuit Circuit Operation: When charging the handset on the Charger Unit, the charge current is as follows; DC+pin of J1(+) → F1 → R1 → CHARGE+pad → CHARGE+(Handset) → Q4 → D7→ F1 → BATTERY+... Battery... BATTERY- → R45 → GND → CHARGE-(Handset)→ CHARGE-pad → DC-pin of J1(-) In this way, the BBIC on Handset detects the fact that the battery is charged.

  • Page 11: Circuit Operation (Charger Unit)

    KX-WT115CE 4.4. Circuit Operation (Charger Unit) Charge control is executed at handset side so that the operation when using charger is also controlled by handset. Refer to Circuit Operation (Handset) (P.9) The route for this is as follows: DC+pin of J1(+) → F1 → R1 → CHARGE+pad → Handset → CHARGE-pad → DC-pin of J1(-).

  • Page 12: Signal Route

    KX-WT115CE 4.5. Signal Route RF part signal route...

  • Page 13: Location Of Controls And Components

    KX-WT115CE 5 Location of Controls and Components 5.1. Handset...

  • Page 14: Installation Instructions

    Do not connect the AC adaptor to a ceiling-mounted AC outlet, as the weight of the adaptor may cause it to become discon- nected. • Fasten the AC adaptor cord to the cord holder. • Use only the included Panasonic AC adaptor. 6.2. Battery 6.2.1.

  • Page 15: Operating Instructions

    KX-WT115CE 7 Operating Instructions 7.1. Soft Keys Icons and information shown on the display will vary depending on the context. To select an item shown on the display, press the corresponding soft key. 7.2. Handset Setting Menu Layout...

  • Page 16: Key Lock

    KX-WT115CE 7.3. Key Lock You can lock all keys while the handset is in standby mode. 7.4. Selecting the Display Language Icons and information shown on the display will vary depending on the context. To select an item shown on the display, press the...

  • Page 17: Display

    KX-WT115CE 7.5. Display...

  • Page 18: Operation Outline

    KX-WT115CE 7.6. Operation Outline Handset functions are accessed through the display menu and selected with the Navigator Key and soft keys. 7.7. Main Menu...

  • Page 19: Character Mode Table

    KX-WT115CE 7.8. Character Mode Table 7.9. For Service Hint...

  • Page 20: Service Mode

    KX-WT115CE 8 Service Mode 8.1. Key Operation...
  • Page 21 KX-WT115CE Frequently Used Items (Handset) ex.) Items Address Default Data New Data Possible Adjusted Possible Adjusted Remarks Value MAX (hex) Value MIN (hex) Battery Low 00 11 / 00 12 00 / 00 (*2) Frequency 00 07 / 00 08...

  • Page 22: Service Registration

    KX-WT115CE 8.2. Service Registration After completing a service or repair, register all handsets to your check specific PBX to confirm the result of the service/repair. You can do this without the information registered to the customer's PBX. (For Service Use) handset and performing registration...
  • Page 23 KX-WT115CE (For Service Use) How to clear a handset's registration information.

  • Page 24: How To Clear User Setting (Handset Only)

    KX-WT115CE 8.3. How to Clear User Setting (Handset Only) Handset Press simultaneously until a beep sound is heard. Then single handset is initialized. (The contents of user setting are reset to factory default) *Usage time and the handset phonebook are not cleared.

  • Page 25: Troubleshooting Guide

    KX-WT115CE 9 Troubleshooting Guide 9.1. Troubleshooting Flowchart Cross Reference: Check the RF part (P.29) Check Power (P.25) Check Handset Transmission (P.30) Check Battery Charge (P.26) Check Handset Reception (P.30) Check Link (P.27) 9.1.1. Check Power 9.1.1.1. Handset Cross Reference: Power Supply Circuit/Reset Circuit (P.9)

  • Page 26: Check Battery Charge

    KX-WT115CE 9.1.2. Check Battery Charge 9.1.2.1. Handset Cross Reference: Check Power (P.25) Charge Circuit (P.10) 9.1.2.2. Charger Unit Cross Reference: Charge Circuit (P.11)

  • Page 27: Check Link

    KX-WT115CE 9.1.3. Check Link 9.1.3.1. Handset...
  • Page 28 KX-WT115CE Cross Reference: Power Supply Circuit/Reset Circuit (P.9) Check the RF part (P.29) Check Point (Handset) (P.31) Note: *1 How to adjust +3.0V: Execute the command "VDA" Refer to Things to Do after Replacing X'tal (P.45) for Handset. *2 How to adjust the frequency of X1: To see the frequency, execute the command “SFR“, then check the TP_CKM (IC1-57pin).

  • Page 29: Check The Rf Part

    KX-WT115CE 9.1.4. Check the RF part 9.1.4.1. RF Check Flowchart Each item (1 ~ 6) of RF Check Flowchart corresponds to Check Table for RF part (P.30). Please refer to the each item. Note: (*1) Refer to Check Link (P.27).

  • Page 30: Check Handset Transmission

    KX-WT115CE 9.1.4.2. Check Table for RF part Item HS (Handset) Check Link Confirmation Normal 1. Register HS (to be checked) to Regular CS. 2. Press [Talk] key of the HS to establish link. HS : [Normal Mode] tal Frequency confirmation Check X tal Frequency.

  • Page 31: Troubleshooting By Symptom (Charger Unit)

    KX-WT115CE 9.2. Troubleshooting by Symptom (Charger Unit) 9.2.1. Check Point (Charger Unit) Items Check Procedure Check or Point Replace Parts Charging Check 1. Connect Charge Contact 12Ω/2 W resistor between charge+ and charge-. R1, F1 2. Measure and confirm voltage across the resistor is 3.1 V ± 0.3 V.
  • Page 32 KX-WT115CE Items Check Procedure Check or Point Replace Parts Battery Low Confirma- 1. Apply 2.40 V between BATT+ and BATT-. IC1, F1, C1, tion 2. Confirm that there is no flashing of Battery Icon. 3. Apply 2.25 V ± 0.08 V between BATT+ and BATT-.
  • Page 33 KX-WT115CE Items Check Procedure Check or Point Replace Parts (M)* Power RAMP Confirma- Follow steps 1 to 3 of (H). IC1, DA801, tion 4.Confirm that Power RAMP is matching. L809, R806, R807,C805, C806, C810~CC813, C820~C822, C825, C826, C859~C863, C895~C897 (N) Audio Check and Confir- 1.

  • Page 34: Disassembly And Assembly Instructions

    KX-WT115CE 10 Disassembly and Assembly Instructions 10.1. Disassembly Instructions 10.1.1. Handset...

  • Page 35: Charger Unit

    KX-WT115CE 10.1.2. Charger Unit...

  • Page 36: How To Replace The Handset Lcd

    KX-WT115CE 10.2. How to Replace the Handset LCD Note: The illustrations are simplified in this page. They may differ from the actual product.

  • Page 37: Measurements And Adjustments

    KX-WT115CE 11 Measurements and Adjustments This chapter explains the measuring equipment, the JIG connection, and the PC setting method necessary for the measurement in Troubleshooting Guide (P.25) 11.1. Equipment Required • Digital multi-meter (DMM): it must be able to measure voltage and current.

  • Page 38: How To Execute Test Command

    KX-WT115CE 11.2.2. How to execute Test command 1. Execute “FlashProgram.exe”. 2. Select “Test command” sheet. 3. Enter command in command columu. 4. Click “Send”. 11.2.3. Commands See the table below for frequently used commands. Command name Function Example Read the data of EEPROM Type “EPR 00 00 FF”, and the data from address “00...

  • Page 39: Download Manual

    KX-WT115CE 11.2.4. Download Manual 11.2.4.1. Step [1] Before Downloading (Configuration Setting) [1]-(1) Execute "FlashProgram.exe" Note: • FlashProgram must use since Ver1.0. • When downloading, please close other applications if at all possible. • Operation of Windows Vista or Windows 7 is not verified.
  • Page 40 KX-WT115CE 11.2.4.3. Step [2] Select Download file [2]-(1) Download Program Main Menu Click "Reference" to select the download file. (Download Filename REL00_WT115_SWxxx_NORMAL) XXX=Version 11.2.4.4. Step [3] Download Start [3]-(1) Keep pressing " (CANCEL)" key until step [3]-(4) [3]-(2) Click "Download"...
  • Page 41 KX-WT115CE [3]-(4) Downloading Start After several seconds, Display shows "Download Start". You can release the " (CANCEL)" key in this step.
  • Page 42 KX-WT115CE [3]-(5) Downloading Complete If downloading finished, display shows "Download finished successfully!". Click "OK" then disconnect the serial PC cable.

  • Page 43: Adjustment Standard (Charger Unit)

    KX-WT115CE 11.3. Adjustment Standard (Charger Unit) When connecting the simulator equipment for checking, please refer to below. 11.3.1. Bottom View Digital Volt Meter /2 W DC POWER DC 6.5 V...

  • Page 44: Adjustment Standard (Handset)

    KX-WT115CE 11.4. Adjustment Standard (Handset) When connecting the simulator equipment for checking, please refer to below. 11.4.1. Component View PNLB1714Z KX-TGA65X ANT_TP RECEIVER C505 C152 C896 C138 R507 C859 C814 C812 C820 C813 C822 C810 R807 C805 C806 C188 R509 CHG_DET 3.0V...

  • Page 45: Things To Do After Replacing X'tal

    KX-WT115CE 11.5. Things to Do after Replacing X'tal If repairing or replacing 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 46: How To Check The Handset Speaker Or Receiver

    KX-WT115CE 11.7. How to Check the Handset Speaker or Receiver 1. Prepare the digital voltmeter, and set the selector knob to ohm meter. 2. Put the probes at the speaker terminals as shown below. 11.8. Frequency Table (MHz) HANDSET Channel No...

  • Page 47: Miscellaneous

    KX-WT115CE 12 Miscellaneous 12.1. 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 sol- dering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.

  • Page 48: How To Replace The Llp (Leadless Leadframe Package) Ic And Ic Ground Plate

    KX-WT115CE 12.2. How to Replace the LLP (Leadless Leadframe Package) IC and IC ground plate 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.

  • Page 49: How To Remove A Solder Bridge (Doesn't Apply To Ic Ground Plate.)

    KX-WT115CE 12.2.5. How to Remove a Solder Bridge (Doesn't apply to IC ground plate.) When a Solder Bridge is found after soldering the bottom of the IC, remove it with a soldering iron.

  • Page 50: How To Replace The Shield Case

    KX-WT115CE 12.3. How to Replace the Shield Case 12.3.1. 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 51: Terminal Guide Of The Ics, Transistors And Diodes

    KX-WT115CE 12.4. Terminal Guide of the ICs, Transistors and Diodes 12.4.1. Handset 13 Schematic Diagram 13.1. For Schematic Diagram 13.1.1. Handset (Schematic Diagram (Handset_Main)) Notes: 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.

  • Page 52: Schematic Diagram (Handset_Main)

    KX-WT115CE 13.2. Schematic Diagram (Handset_Main) Charge Current VBAT VBAT BATT+ 2.5A When on Charge BATT- VBAT 3.0V To Battery CHG_CUR 3.0V C172 CHG(+) 0.1u CHG+ To Charge Terminal E_WP EEP_WP CHG- E_SCL 128K EEP_SCL CHG(-) R43 0 E_SDA EEP_SDA EEP_SCL...
  • Page 53 GNDA GNDA GNDA1 GNDA1 GNDA GNDA1 C113 MIC+ GNDA R73 33 D10p MIC+ (15) MIC AP1 R74 33 (16) MIC- MIC- Handset TX R309 R310 (17) SP-phone TX GNDA GNDA GNDA GNDA GNDA NC: No Components KX-WT115CE SCHEMATIC DIAGRAM (Handset_Main)

  • Page 54: Schematic Diagram (Handset_Led)

    KX-WT115CE 13.3. Schematic Diagram (Handset_LED) KX-WT115CE SCHEMATIC DIAGRAM (Handset_LED) 13.4. Schematic Diagram (Charger Unit) R1 12 SCHEMATIC DIAGRAM (Charger Unit)

  • Page 55: Printed Circuit Board

    4.0V 3.0 V CP_CTRL CHG_CTRL Q51 Q52 C127 C110 C172 R562 R563 R306 MIC+ C185 MIC- for JIG VBAT VBAT 2.5A BATT+ BATT- BATT- BATT+ CHG (-) CHG (-) C147 CHG (+) CHG(+) C113 KX-WT115CE CIRCUIT BOARD (Handset_Main (Component View))

  • Page 56: Bottom View

    KX-WT115CE 14.1.2. Bottom View CN3_C SOFT1 MENU SOFT2 TALK LED2 LED5 LEFT RIGHT FLASH DOWN KX-WT115CE CIRCUIT BOARD (Handset_Main (Bottom View))

  • Page 57: Circuit Board (Handset_Led)

    KX-WT115CE 14.2. Circuit Board (Handset_LED) PNLB1763Z KX-WT115CE CIRCUIT BOARD (Hanset_LED (Bottom View))

  • Page 58: Circuit Board (Charger Unit)

    KX-WT115CE 14.3. Circuit Board (Charger Unit) 14.3.1. Component View CIRCUIT BOARD (Charger unit (Component View)) 14.3.2. Bottom View TP4 (GND) CIRCUIT BOARD (Charger unit (Bottom View))

  • Page 59: Exploded View And Replacement Parts List

    (*1) This cable is fixed by welding. Refer to How to Replace the Handset LCD (P.36). (*2) The rechargeable Ni-MH battery HHR-55AAAB is available through sales route of Panasonic. (*3) Attach the SPACER (No. 123) to the exact location described above.

  • Page 60: Cabinet And Electrical Parts (Charger Unit)

    KX-WT115CE 15.2. Cabinet and Electrical Parts (Charger Unit)

  • Page 61: Accessories And Packing Materials

    KX-WT115CE 15.3. Accessories and Packing Materials...

  • Page 62: Replacement Parts List

    KX-WT115CE 15.4. Replacement Parts List Safety Ref. Part No. Part Name & Description Remarks 1. RTL (Retention Time Limited) PQHR11315Z GUIDE, SPEAKER ABS-HB Note: L0AA02A00095 SPEAKER The “RTL” marking indicates that its Retention Time is PQHS10784Y SPACER, SPEAKER NET PQJC10056W BATTERY TERMINAL Limited.
  • Page 63 KX-WT115CE Safety Ref. Part No. Part Name & Description Remarks Safety Ref. Part No. Part Name & Description Remarks J0JCC0000407 IC FILTER ECUE0J105KBQ 1 R308 J0JCC0000286 IC FILTER ECUE1A104KBQ 0.1 F1G1H100A723 10p (RESISTORS) ECJ1VB0G106M 10 ERJ2GEJ152 1.5k ECUV1A105KBV 1 ERJ2GEJ473...

  • Page 64: Charger Unit

    KX-WT115CE 15.4.2. Charger Unit 15.4.2.1. Cabinet and Electrical Parts Safety Ref. Part No. Part Name & Description Remarks PNWEWT115CE CHARGER UNIT ASS'Y without NAME PLATE (RTL) 200-1 PNKM1130XF CABINET BODY PS-HB 200-2 PNJT1010Z CHARGE TERMINAL 200-3 PNKF1098Z1 CABINET COVER PS-HB...

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