Panasonic EB-GD52 Service Manual
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Panasonic EB-GD52 Service Manual

Personal cellular telephone
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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. Any attempt to service or
repair the product or products dealt with in this service manual by anyone else could result in serious injury or death.
Issue 1
Revision 0
Personal Cellular Telephone
EB-GD52
EB-GD92
EB-GD92C
Specification
Frequency Range
Tx/Rx frequency separation
RF Channel Bandwidth
Number of RF channels
Speech coding
Operating temperature
Type
RF Output Power
Modulation
Connection
Voice digitizing
Transmission speed
Diversity
Signal Reception
Intermediate Frequencies
Antenna Terminal Impedance
Antenna VSWR
Dimensions
Volume
Weight
Display
Illumination
Keypad
SIM
External DC Supply Voltage
Battery
Standby Battery Life
DRX 9
Conversation Battery Life
PL 7, DTX 50%
Battery life figures are dependent on network conditions.
WARNING
© 2000 Matsushita Communication Industrial UK
Ltd. All rights reserved. Unauthorized copying and
distribution is a violation of law.
Order Number: MCUK000601C8
900 MHz
1800 MHz
Tx: 890 - 915MHz
Tx: 1710 - 1785 MHz
Rx: 935 - 960 MHz
Rx: 1805 - 1880 MHz
45 MHz
95 MHz
200 kHz
124
374
Full rate/Half rate/Enhanced Full rate
-10 °C to +55 °C
Class 4 Handheld
Class 1 Handheld
2 W maximum
1 W maximum
GMSK (BT = 0.3)
8 ch/TDMA
13 kbps RPE-LTP / 13 kps ACLEP / 5.6 kps CELP / VSLEP
270.3 kbps
Frequency hopping
Double superheterodyne
225 MHz and 45 MHz
50 Ω
<2.1 : 1
Height: 118.1 mm
Width: 40.5 mm
Depth: 16.4 mm (GD92/92C), 21.4 mm (GD52)
GD52: 99 ml
GD92/92C: 74.5 ml
GD52: 99 g
GD92/92C: 77 g
Graphical chip on glass liquid crystal, Alphanumeric,
16 x 3 characters (GD52), 16 x 4 characters (GD92/92C),
5 icons and 6 x 1 characters
4 LEDs for the LCD (Green)
8 LEDs for the keypad (Green)
1 LED Incoming call (Green)
1 Charging LED (Red)
17 keys, Navigation key
Plug-in type only
5.8 V
GD52: 3.6V nominal, 600mAh, NiMH
GD92/92C: 3.7 V nominal, 650mAh, Li-Ion
GD52: 140 hrs
GD92/92C: 160 hrs maximum
GD52: 180 minutes
GD92/92C: 210 minutes

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Summary of Contents for Panasonic EB-GD52

  • Page 1 Order Number: MCUK000601C8 Personal Cellular Telephone EB-GD52 EB-GD92 EB-GD92C Specification 900 MHz 1800 MHz Frequency Range Tx: 890 - 915MHz Tx: 1710 - 1785 MHz Rx: 935 - 960 MHz Rx: 1805 - 1880 MHz Tx/Rx frequency separation 45 MHz...
  • Page 2 Company Liability This Service Manual is copyright and issued on the strict understanding that it is not be reproduced, copied, or disclosed to any third party, either in whole or in part, without the prior written consent of Matsushita Communication Industrial UK Ltd. Every care has been taken to ensure that the contents of this manual give an accurate representation of the equipment.

  • Page 3: Warnings And Cautions

    WARNINGS AND CAUTIONS WARNING The equipment described in this manual contains polarized capacitors utilising liquid electrolyte. These devices are entirely safe provided that neither a short-circuit nor a reverse polarity connection is made across the capacitor terminals. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN DAMAGE TO THE EQUIPMENT OR, AT WORST, POSSIBLE INJURY TO PERSONNEL RESULTING FROM ELECTRIC SHOCK OR THE AFFECTED CAPACITOR EXPLODING.
  • Page 4 This page is left intentionally blank. Issue 1 – iv – MCUK000601C8 Revision 0 Service Manual...

  • Page 5: Purpose Of This Manual

    1 INTRODUCTION 1.1. Purpose of this Manual This Service Manual contains the information and procedures required for installing, operating and servicing the Panasonic GSM Personal Cellular Mobile Telephone system operating on the GSM Digital Cellular Network. 1.2. Structure of the Manual...
  • Page 6 INTRODUCTION This page is intentionally blank. Issue 1 Section 1 MCUK000601C8 Revision 0 – 2 – Service Manual...

  • Page 7: General Description

    2.2.1 Standard Features Panasonic Telephone Models GD52, GD92 and GD92C are high performance, small, light, handsets for business and domestic use. The following features are included as standard: Triple Rate, which includes Full Rate, Half rate and Enhanced Full Rate (EFR) speech, codec.

  • Page 8: Item Description

    GENERAL DESCRIPTION 2.3.3 GD92 Contents ITEM DESCRIPTION PART NUMBER Main Unit GD92 EB-GD92 Battery, Standard EB-BSD92B (Blue) - or EB-BSD92T (Titanium) AC Adaptor EB-CAD92 Documentation See Section 7 2.3.4 GD92C Contents ITEM DESCRIPTION PART NUMBER Main Unit GD92C EB-GD92C Battery, Standard EB-BSD92B (Blue) - or EB-BSD92T (Titanium)

  • Page 9: Lcd Display

    OPERATING INSTRUCTIONS 3 OPERATING INSTRUCTIONS 3.1. General This section provides a brief guide to the operation and facilities available on the GD52, GD92 and GD92C telephone handsets. Refer to the Operating Instructions supplied with the telephones for full operational information. 3.2.

  • Page 10: Location Of Controls

    OPERATING INSTRUCTIONS 3.3. Location of Controls Incoming / Charge indicator: Green - Incoming call. Red - Charging battery pack. External connector: Used to connect to external accessories or to charging equipment. Antenna Earpiece Incoming Call / Charging Indicator Display Memo Key (GD92 / GD92C) External Antenna Connector...

  • Page 11: Concept Of Operation

    OPERATING INSTRUCTIONS 3.4. Concept of Operation There is a close relationship between the Select Key, Navigation Key and display. 10025-1 Figure 3.3: Concept of Operation Pressing up and down ( ) will move the pointer up and down and scroll through more information in the main area of the display.

  • Page 12: Incoming Call Line Identification (Cli)

    OPERATING INSTRUCTIONS 3.6. Incoming Call Line Identification (CLI) When a call is received the last 6 digits of the CLI information is matched with the phonebook. Therefore an incoming call could match to the wrong phonebook entry. 3.7. Hot Key Dial Source List The source for Hot Key Dial Numbers is normally ‘Phonebook’...

  • Page 13: Public Man Machine Interface (Mmi)

    OPERATING INSTRUCTIONS 3.9. Public Man Machine Interface (MMI) 3.9.1 General It is possible to operate all GSM telephones in the same way using the Public MMI. The following operations will work with all GSM telephones. However, this information is restricted to those operations supported by GD52, GD92 and GD92C telephones.

  • Page 14: Call Divert

    OPERATING INSTRUCTIONS 3.9.8 Telecommunication Services used for Public MMI Teleservice Service MMI Service Code All teleservices Telephony All data teleservices Facsimilie services Short Message Services (SMS) All teleservices except SMS Voice group services Bearer Service Service MMI Service Code All bearer services All asynchronous services All synchronous services All data synchronous services...

  • Page 15: Troubleshooting

    OPERATING INSTRUCTIONS 3.9.10 Call Bar Call Ball Type Service Code All outgoing calls Outgoing International calls Outgoing International calls except those to the PLMN country All incoming calls Incoming international calls when roaming * <PASSWORD> * <TELECOMMUNICATION SERVICE> # <SND> Clear # <TELECOMMUNICATION SERVICE>...

  • Page 16: Important Error Messages

    OPERATING INSTRUCTIONS 3.11. Important Error Messages The following table is a list of error messages that may occur during use of the telephone, with a description and suggested course of action: Error Message Explanation / Remedy Area not Allowed Roaming in the selected area is not allowed. Network not Allowed Roaming with the selected network is not allowed.
  • Page 17 OPERATING INSTRUCTIONS 3.13.3 Personalisation Function Personalisation is activated during manufacture and then enabled at a later stage. Enabling/disabling is available by entering a special key sequence immediately after power on. Once the enable/disable menu is shown it is possible to select the type of personalisation.

  • Page 18: Gsm Services Supported By Pc Card

    OPERATING INSTRUCTIONS 3.14. GSM Services Supported by PC Card Bearer Service Access Struc- Information Error Correc- Bearer Service Rate Access Rate Number ture Transfer tion Options Asynchronous 300 bps Asynch 300 bps UDI or modem T or NT Asynchronous 1.2 kbps Asynch 1.2 kbps UDI or modem...
  • Page 19 OPERATING INSTRUCTIONS Access Network Country Service or Operator Phone Display Band Code Code ETHIOPIA +251 ETMTN ETH-MTN GSM 900 FIJI +679 VODAFONE FIJI VODAFONE FIJ GSM 900 FINLAND +358 FINNET FINNET GSM 1800 Finland SONERA SONERA GSM 900 RADIOLINJA FI RADIOLINJA GSM 900 Telia Telia...
  • Page 20 OPERATING INSTRUCTIONS Access Network Country Service or Operator Phone Display Band Code Code LATVIA +371 BALTEL LV BALTEL GSM 900 LATVIA LMT GSM LV LMT GSM GSM 900 LEBANON +961 Cellis RL Cellis GSM 900 LibanCell RL LibanCell GSM 900 LESOTHO +266 VODACOM LESOTHO...
  • Page 21 OPERATING INSTRUCTIONS Access Network Country Service or Operator Phone Display Band Code Code SOUTH_AFRICA MTN-SA GSM 900 SOUTH_AFRICA VodaCom VodaCom-SA GSM 900 SPAIN AIRTEL E AIRTEL GSM 900 AMENA AMENA not known MOVISTAR MOVISTAR not known MOVISTAR MOVISTAR GSM 900 SRI_LANKA DIALOG SRI DIALOG...

  • Page 22: Glossary Of Terms

    OPERATING INSTRUCTIONS 3.16. Glossary of Terms Term Definition DTMF Dual Tone Multiple Frequency tones. The numeric keys 0 to 9, and * and # will generate different DTMF tones when pressed during conversation. These are used to access voice mail, paging and home banking services.
  • Page 23 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 4 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 4.1. General This section provides disassembly and reassembly procedures for the main components of GD52, GD92 and GD92C telephones. These assemblies MUST be performed by qualified service personnel at an authorised service centre. The following Warnings and Cautions MUST be observed during all disassembly / reassembly operations: WARNING The equipment described in this manual contains polarised capacitors uitilising liquid electrolyte.
  • Page 24 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 10235-1 Figure 4.2: GD52 Battery Removal Remove the four case screws located inside the battery compartment. 10234-1 Figure 4.3: GD52 Case Screw Removal Remove the cover from the case by pulling from the connector end of the telephone. Care must be taken when separating the case from the cover as the retaining clips may be very stiff - if necessary, re-attach the battery cover to provide extra support for the case.
  • Page 25 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 10194-1 Figure 4.5: GD52 PCB Assembly Removal 4.2.2 Case Removal (GD92 / GD92C) Remove the battery from the back of the telephone. Remove the four case screws located inside the battery compartment. 10192-1 Figure 4.6: GD92 / GD92C Screw Removal Remove the cover from the case by pulling from the connector end of the telephone.

  • Page 26: Backup Battery

    DISASSEMBLY / REASSEMBLY INSTRUCTIONS 10194-1 Figure 4.8: GD92 / GD92C PCB Assembly Removal 4.2.3 Changing the Backup Battery (GD92 / GD92C) Remove the case as previously described. The backup battery is held in a retainer on the Main PCB. Observe polarity when replacing the battery.
  • Page 27 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 10196-1 Figure 4.11: Key PCB Removal Insert a small screwdriver blade or similar blunt object into the chassis recess to the side of the LCD, and gently prise the LCD from the chassis assembly. 10226-1 Figure 4.12: LCD Removal The Light Guide and Reflector can be removed in turn by prising one side away from the chassis.
  • Page 28 DISASSEMBLY / REASSEMBLY INSTRUCTIONS Unclip the speaker holder and lift out the speaker. 10229-1 Figure 4.15: Speaker Removal Remove the RF Shield by depressing one of the side retaining clips with a small screwdriver blade or similar blunt object. 10227-1 Figure 4.16: Removal of RF Shield Once the RF Shield has been removed, the Memo button (GD92 / GD92C) and Desktop Handsfree (DTHF) speaker may be lifted out from the case.
  • Page 29 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 10228-1 Figure 4.18: Antenna Removal 4.3. Re-assembly Re-assembly is the reverse of disassembly, except that the Keypad PCB should be located in the chassis guides adjacent to the base I/O connector before sliding it in to its normal location. Ensure that the securing screws are not over-tightened as this may affect the operation of the keypad.
  • Page 30 DISASSEMBLY / REASSEMBLY INSTRUCTIONS This page is intentionally blank. Issue 1 Section 4 MCUK000601C8 Revision 0 – 26 – Service Manual...

  • Page 31: Technical Specifications

    TECHNICAL SPECIFICATIONS 5 TECHNICAL SPECIFICATIONS 5.1. Tx Characteristics All data is applicable to GSM 900 and GSM 1800 except where stated. 5.1.1. Frequency Error ±0.1 ppm max., relative to base station frequency. 5.1.2. Modulation Phase Error RMS: ≤5 ° Peak: ≤20 ° 5.1.3.

  • Page 32: Residual Peak Power

    TECHNICAL SPECIFICATIONS 5.1.6. Output Level, Dynamic Operation GSM 900 Tolerance for Conditions (dB) Power Control Transmitter Output Power Level (dBm) Normal Extreme GSM 1800 Tolerance for Conditions (dB) Power Control Transmitter Output Power Level (dBm) Normal Extreme 5.1.7. Residual Peak Power ≤70 dBc (BW = 300 kHz) 5.2.
  • Page 33 TECHNICAL SPECIFICATIONS GSM 1800 Full Rate Speech The reference sensitivity performance in terms of frame erasure, bit error, or residual bit error rates (whichever is appropriate) is specified in the following table, according to the propagation conditions. Propogation Conditions Propogation Conditions Propogation Conditions Channels Static Conditions...
  • Page 34 TECHNICAL SPECIFICATIONS Spurious response exceptions: Six exceptions are permitted IN band 915 - 980 MHz. 24 exceptions are permitted OUTSIDE band 915 - 980 MHz. Intermodulation Characteristics Interferer Level (f1 & f2) dBm Interferer Frequencies (f1 & f2) Wanted frequency = 2f1 -f2, and [f1 - f2] = 800 kHz.

  • Page 35: Any-Layer Interstitial Via Hole (Alivh) Pcbs

    TEST AND MEASUREMENT 6 TEST AND MEASUREMENT 6.1. Introduction This section provides information on testing GD52, GD92 and GD92C telephones. The layout is as follows Section 6.2 ALIVH PCBs: Description and repair procedures. Section 6.3 External testing: describes equipment requirements and general set up procedure. Section 6.4 Complete Unit Test Setup: describes how the items of test equipment are used together and general set up procedure.

  • Page 36: External Testing

    TEST AND MEASUREMENT 6.2.2.2. Hot-Air Blower The blower air temperature should be at: 295 °C ±5 °C for an application time of 120 seconds or less, 395 °C ±5 °C for an application time of 30 seconds or less. Removal and re-mounting of components should be performed only once at any component position. Note: To avoid land detachment, do NOT apply excessive force on the soldering iron when heating the board.

  • Page 37: Power Supply

    TEST AND MEASUREMENT 4 . 8 . 2 8 FRONT REAR 10016-1 Figure 6.1: Interface Box IFB003 / IFB004 6.3.3. Personal Computer (PC) The PC (IBM compatible) is used as a Unit Under Test controller. This in conjunction with the channel box software, allows all of the test facilities normally provided through the keypad of the Unit Under Test.
  • Page 38 TEST AND MEASUREMENT 10265-1 Figure 6.3: PCB Repair Jig RF Adaptor This unit provides an RF connection between the Unit Under Test and external test equipment. Use part number JT00044 for GD52 and JT00040 for GD92 / GD92C. 10232-1 Figure 6.4: GD92 / GD92C RF Adaptor GSM Tester This unit acts as a base station providing all the necessary GSM signalling requirements and also provides GSM signal measuring facilities.
  • Page 39 TEST AND MEASUREMENT Battery Calibration Voltage Control Unit (Part No. JT00010) The Battery Calibration Voltage Control Unit (BCVCU) provides three voltage levels (3 V, 4.1 V and 0 V) to the Test Battery, and is used during battery calibration checks. It is powered from the Interface Box. 10163-1 Figure 6.6: Battery Calibration Control Unit 6.3.5.

  • Page 40: Complete Unit Setup

    TEST AND MEASUREMENT 6.4. Complete Unit Setup MAIN RF CABLE (INTERNAL CONNECTOR) KEYPAD PCB 10199-1 Figure 6.7: Complete Unit Test Setup Issue 1 Section 6 MCUK000601C8 Revision 0 – 36 – Service Manual...

  • Page 41: Important Note

    TEST AND MEASUREMENT 6.4.1. External Testing Setup Procedure IMPORTANT NOTE To allow accurate measurement of the complete unit the test equipment must be connected as shown (Figure 6.6). The PCB Test Setup must be used to enable repair to PCBs. Once repair/replacement is complete, the assembled unit must be tested and calibrated with the jigs and tools connected as shown in Figure 6.7.
  • Page 42 TEST AND MEASUREMENT Power supply +12V DC: ON Channel box software loaded and the screen indicating as shown: Figure 6.9: PC Screen (SCRN10) Press ENTER on the PC keyboard. At the PC press F10. After approximately 1 second, set the Interface Cable switch to ON (position is marked by a dot). NOTE: The display will read: GET STATION ADDRESS = _ _...
  • Page 43 TEST AND MEASUREMENT Figure 6.11: PC Screen (SCRN9) On the PC, select NORMAL MODE and press ENTER. Press F10 on the PC. After approximately 1 second, set the interface cable switch to ON (position is marked by a dot). Entering Call Mode from Test Mode Ensure that a fully-charged battery is attached to the telephone.

  • Page 44: Channel Box Test Commands

    TEST AND MEASUREMENT 6.5. Channel Box Test Commands The following table outlines the commands available using the channel box software. After the telephone unit has been switched on (Section 6.4), use the up / down cursor keys on the PC keyboard to select the channel box command.

  • Page 45: Adjustment Mode

    The carrier power must be measured and calibrated for each power level at channel 62. GSM 900 NOTE: To ensure that the telephone operates within set SAR margins, Panasonic recommends that a power meter capable of measurement to an accuracy of ±0.2 dB is used when calibrating power levels. Use of a less accurate power meter may result in the telephone failing to meet SAR standards.
  • Page 46 TEST AND MEASUREMENT At the power meter, measure the peak power. If measured power is in the range of the target power, then proceed to step 10. At the Channel box, press F7 to view the TRIM for the mid-channel. Figure 6.14: Power level view 1 Select VIEW TRIM PL MCH, and make a note of this value.
  • Page 47 TEST AND MEASUREMENT Figure 6.16: Power level selection 1 11. Select PROGRAM TRIM PL MCH GSM. Figure 6.17: Power level selection 2 12. Highlight the PL14 fieldand press ENTER. MCUK000601C8 Section 6 Issue 1 Service Manual – 43 – Revision 0...
  • Page 48 TEST AND MEASUREMENT Figure 6.18: Power level selection 3 13. Enter the value calculated in step 9 into the data field and then press ENTER. 14. Press ESC. 15. Re-measure the peak power. 16. Repeat steps 5 to 14 for the remaining power levels, in the following order: PL6, PL9, and PL19.
  • Page 49 TEST AND MEASUREMENT Figure 6.19: RSSI dB field If the measured power is not -90 ±1, then make the following calculation: RSSI offset value = [-(90 + MEASURED RSSI VALUE)] x 2 =[ -90 - MEASURED RSSI VALUE] x 2, for example [-(90 + (95))] x 2 = [-90 - (-95)] x 2...

  • Page 50: Press Enter

    TEST AND MEASUREMENT Figure 6.21: RSSI reading 2 Press ESC. 10. At the Channel box, press F6 to program data. Figure 6.22: RSSI reading 3 11. Select TRIM RSSI and press ENTER. 12. Highlight RSSI Mch GSM and press ENTER. 13.

  • Page 51: I And Q Values

    TEST AND MEASUREMENT 17. Repeat steps 6 to 16 for both low / bottom and high / top channels. Channel GSM 900 Low / bottom High / top 18. Repeat steps 6 to 16 for GSM 1800 on the following channels with the SET AGC 1 field set to 51 dB: Channel GSM 1800 Bottom / low...
  • Page 52 TEST AND MEASUREMENT If the image leak ratio is greater than 30 dBc, then proceed to ‘IQ ch gain calibration’. IQ Gain Check At the Channel Box, press F6 and select TRIM OTHER. Scroll down until IQCH GAIN is highlighted. Press Enter. Figure 6.24: I, Q data selection field1 Enter ‘1’...

  • Page 53: Battery Calibration

    TEST AND MEASUREMENT 6.6.5. Battery Calibration Preliminaries There are three procedures to calibrating the battery, voltage, temperature and charging calibration. A Battery Calibration Voltage Control Unit (BCVCU) is used to provide the necessary voltage levels for these checks. The BCVCU replaces the two regulated power supplies and 82 Ohm resistor required to caibrate previous mobile products.
  • Page 54 TEST AND MEASUREMENT Figure 6.28: Battery calibration 2 Set VBAT to 3.0 V by selecting 3.0 V on the BCVCU. On the PC, press ‘Y’ and then ENTER. Check the ADIN1 reading again - this is the BAT VOLT LOW value. If the reading is outside the range 390 - 490, there is a fault and further investigation is required.
  • Page 55 TEST AND MEASUREMENT Figure 6.30: Battery calibration 4 12. Set the BCVCU to 12 V. Temperature Calibration Ensure that VBAT is set to 4.1 V. Check that EXT PWR and IGN on the Interface Box is set to OFF. Scroll up the menu until CONTROL OUT is highlighted. Using the left / right cursor keys, highlight AADC ON and then press ENTER.
  • Page 56 TEST AND MEASUREMENT Figure 6.32: Temperature calibration 2 Charging Calibration On the Interface Box, ensure that the EXT PWR switch is ON. Check that the BCVCU 82 Ohms switch is set to ON. Holding down the Shift key, press F4. Select PROG CHARG-DAC DATA. Figure 6.33: Charging calibration 1 Enter a value of 439.
  • Page 57 TEST AND MEASUREMENT Figure 6.34: Charging Calibration 2 Disconnect VBAT by setting the BCVCU Voltage switch to OFF. Measure the voltage across the Test Battery terminals. If the voltage is within the range 4.2 V ±5 mV, proceed to step 11. Otherwise, calculate the difference (DAC STEP) as follows: difference = (measured voltage - 4.2 V) / 7.4 mV Press Shift + F4.
  • Page 58 TEST AND MEASUREMENT Figure 6.36: Charging calibration 4 Current Charging ADC Calibration It is important to monitor the current when charging the Li-ion battery, both to protect against over-current and to determine when charging is complete. The telephone uses the VCC3 and MADC (ICHG) connections of OMEGA to measure charging current as an amplified voltage across a sense resistor.

  • Page 59: Replacement Parts List

    REPLACEMENT PARTS LIST 7 REPLACEMENT PARTS LIST 7.1. Exploded Diagrams 7.1.1. GD52 Case and Cover Assemblies M104 M125 M120 M113 M123 E007 M110 M105 M114 E011 E004 M107 M124 M109 E001 M112 M106 E006 M122 M111 M103 10237-1 Figure 7.1: GD52 Case Parts Part Number Description Part Number...
  • Page 60 5(3/$&(0(17 3$576 /,67  *'  *'& &DVH DQG &RYHU $VVHPEOLHV M116 M117 M113 M119 M110 M105 M114 M120 M107 M109 M112 M106 M104 M111 M118 M103 10200-1 )LJXUH  *'  *'& &DVH 3DUWV Qh…‡ÃIˆ€ir… 9r†p…vƒ‡v‚ Qh…‡ÃIˆ€ir… 9r†p…vƒ‡v‚ B9(!8WS 7 A…‚‡Ã8‚‰r…Ã6††’Ã7yˆr "...
  • Page 61 5(3/$&(0(17 3$576 /,67  6XE$VVHPEOLHV 017 x 2 M108 M122 M121 10201-1 )LJXUH  6XE$VVHPEOLHV *'  *' *'& Qh…‡ÃIˆ€ir… 9r†p…vƒ‡v‚ B9$! B9(!ÃÃB9(!8 TrrÃTrp‡v‚Ã&! TrrÃTrp‡v‚Ã&! H6DIÃ7P6S9Ã6TT@H7G` B9$!FQ87 B9(!FQ87 F@`Q69ÃQ87Ã6TT@H7G` !A6$#"6 !A6$#!6 8C6TTDT !R6$&&6 !R6$& 6 GDBCUÃQDQ@ %96$!$6 %96$$!6 S@AG@8UPSÃTC@@U " Q`&%"%7 Q`&%"%7 DIU@S7P6S9Ã8PII@8UPS...
  • Page 62 7.2. Printed Circuit Boards (PCBs) Model EB-GD52 & EB-GD92 Name: Main PCB Variants Part Number 7.2.1. Main PCB: Variants Description GD52 GD92 Model EB-GD52 & EB-GD92 Name: Main PCB Variants GD52BRD023 GD92BRD023 MAIN PCB E.R.A. PROGRAM Part Number GD52BRD024 GD92BRD024...

  • Page 63: Gd52 Main Pcb

    7.2.2. GD52 Main PCB Model EB-GD52 Name: GD52 Main PCB Part Number Description Notes Model EB-GD52 Name: GD52 Main PCB C141 ECUE1H101JCQ CAP CER 100pF 5% 50V NP0 SMD 1 Part Number Description Notes C142 F1G1A1040002 CAP CER 100nF 10% 10V X7R SMD...
  • Page 64 Model EB-GD52 Name: GD52 Main PCB Model EB-GD52 Name: GD52 Main PCB Part Number Description Notes Part Number Description Notes C209 ECUE1H101JCQ CAP CER 100pF 5% 50V NP0 SMD 1 C306 F1G1H100A406 CAP CER 10pF +/-0.5pF 50V NP0 C211 F1G1H2R0A391 CAP CER 2pF +/-0.25pF 50V NP0...
  • Page 65 Model EB-GD52 Name: GD52 Main PCB Model EB-GD52 Name: GD52 Main PCB Part Number Description Notes Part Number Description Notes C404 ECUE1H330JCQ CAP CER 33pF 5% 50V NP0 SMD 10 C625 F3E0G2260002 CAP TANT 22uF 20% 4V SMD CASE C405 ECST0JZ106R CAP TANT 10uF 20% 6.3V SMD CAS...
  • Page 66 Model EB-GD52 Name: GD52 Main PCB Model EB-GD52 Name: GD52 Main PCB Part Number Description Notes Part Number Description Notes C662 F1J1A4750004 CAP CER 4.7uF -20+80% 10V Y5V C706 F1G1A1040002 CAP CER 100nF 10% 10V X7R SMD C663 F1H1A224A006 CAP CER 220nF 10% 10V X7R SMD...
  • Page 67 Model EB-GD52 Name: GD52 Main PCB Model EB-GD52 Name: GD52 Main PCB Part Number Description Notes Part Number Description Notes D609 MAZT068H0L DIODE MAZT068H0L ZENER 6.8V SM L101 ELJRE5N6JF2 INDUCTOR 5.6nH 5% SMD 1608 D610 MAZT068H0L DIODE MAZT068H0L ZENER 6.8V SM...
  • Page 68 Model EB-GD52 Name: GD52 Main PCB Model EB-GD52 Name: GD52 Main PCB Part Number Description Notes Part Number Description Notes L601 ELJRE82NJF3 INDUCTOR 82nH 5% SMD 1608 R115 ERJ2GEJ561X RES 560 OHM 5% 1/16W SMD 1005 L602 ELJRE82NJF3 INDUCTOR 82nH 5% SMD 1608...
  • Page 69 Model EB-GD52 Name: GD52 Main PCB Model EB-GD52 Name: GD52 Main PCB Part Number Description Notes Part Number Description Notes R305 ERJ2GEJ470X RES 47 OHM 5% 1/16W SMD 1005 R617 ERJ2GEJ222X RES 2.2K OHM 5% 1/16W SMD 1005 R306 ERJ2GEJ4R7X RES 4.7 OHM 5% 1/16W SMD 1005...
  • Page 70 Model EB-GD52 Name: GD52 Main PCB Model EB-GD52 Name: GD52 Main PCB Part Number Description Notes Part Number Description Notes R645 ERJ2GEJ331X RES 330 OHM 5% 1/16W SMD 1005 R687 ERJ2GEJ4R7X RES 4.7 OHM 5% 1/16W SMD 1005 R646 ERJ2GEJ331X...
  • Page 71 7.2.3. GD92 / GD92C Main PCB Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Part Number Description Notes Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB C145 ECUE1H151JCQ CAP CER 150pF 5% 50V NP0 SMD 1 Part Number Description Notes...
  • Page 72 Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Part Number Description Notes Part Number Description Notes C219 F1G1H2R0A391 CAP CER 2pF +/-0.25pF 50V NP0 C321 ECUE1H101JCQ CAP CER 100pF 5% 50V NP0 SMD 1 C223 F1G1H2R0A391 CAP CER 2pF +/-0.25pF 50V NP0...
  • Page 73 Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Part Number Description Notes Part Number Description Notes C615 F1H0J1050009 CAP CER 1uF 10% 6.3V X5R SMD 1 C649 F1G1H150A409 CAP CER 15pF 5% 50V NP0 SMD 10 C616 F1G1A104A012...
  • Page 74 Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Part Number Description Notes Part Number Description Notes C700 ECUE1H101JCQ CAP CER 100pF 5% 50V NP0 SMD 1 D612 MAZS0750ML DIODE MAZS0750ML ZENER 7.5V SM C701 F1H0J1050009...
  • Page 75 Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Part Number Description Notes Part Number Description Notes L152 G1C15NJ00008 INDUCTOR 15nH 5% SMD 1005 Q601 2SD15110FL TRANSISTOR 2SD15110FL NPN HFE= L201 G1C10NJ00008 INDUCTOR 10nH 5% SMD 1005...
  • Page 76 Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Part Number Description Notes Part Number Description Notes R156 ERJ2GEJ273X RES 27K OHM 5% 1/16W SMD 1005 R612 ERJ2GEJ391X RES 390 OHM 5% 1/16W SMD 1005 R157 ERJ2GEJ103X RES 10K OHM 5% 1/16W SMD 1005...
  • Page 77 Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Main PCB Part Number Description Notes Part Number Description Notes R644 ERJ6RSFR15V RES 0.15 OHM 1% 1/10W SMD 2012 S601 EVQPSR02K SWITCH TACTILE R645 ERJ2GEJ331X RES 330 OHM 5% 1/16W SMD 1005...

  • Page 78: Gd52 Keypad Pcb

    7.2.4. GD52 Keypad PCB 7.2.5. GD92 / GD92C Keypad PCB Model EB-GD52 Name: GD52 Keypad PCB Model EB-GD92 / EB-GD92C Name: GD92 / GD92C Keypad PCB Part Number Description Notes Part Number Description Notes D801 MA2S11100L DIODE MA2S111 80V 100mA SMD SS...

  • Page 79: Refurbishment Kits

    7.3. Refurbishment Kits Model EB-GD52/92/92C Name: Jigs and Tools Part Number Description Notes 7.3.1. GD52 JT00044 GD52 RF ADAPTOR Model EB-GD52 Name: Refurbishment Kits JT00045 GD52 TEST BATTERY Part Number Description Notes JT00040 GD92 / GD92C RF ADAPTOR 9R5200B REFURBISHMENT KIT, BLUE 7.5.
  • Page 80 Model EB-GD52 Name: Document Packs Part Number Description GD52 GD92 GD52DPK15 GD92DPK15 FRENCH, EU WARRANTY GD52DPK16 GD92DPK16 GERMAN, EU WARRANTY GD52DPK17 GD92DPK17 GREEK, EU WARRANTY GD52DPK18 GD92DPK18 HUNGARIAN GD52DPK19 GD92DPK19 ITALIAN, EU WARRANTY GD52DPK20 GD92DPK20 NORWEGIAN, EU WARRANTY GD52DPK21 GD92DPK21...
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  • Page 82 &,5&8,7 ',$*5$06  *' 0DLQ 3&% 5) )LJXUH  0DLQ 3&% /RJLF FLUFXLW GLDJUDP ,VVXH  6HFWLRQ  0&8.& 5HYLVLRQ  ±  ± 6HUYLFH 0DQXDO...
  • Page 83  *' .H\SDG 3&%...
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  • Page 85 &,5&8,7 ',$*5$06  *' 0DLQ 3&% /RJLF )LJXUH  0DLQ 3&% 5) FLUFXLW GLDJUDP 0&8.& 6HFWLRQ  ,VVXH  6HUYLFH 0DQXDO ±  ± 5HYLVLRQ ...
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  • Page 87  *' .H\SDG 3&%...
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  • Page 89: Layout Diagrams

    LAYOUT DIAGRAMS 9 LAYOUT DIAGRAMS 9.1. GD52 Main PCB Figure 9.1: GD52 Main PCB layout diagram MCUK000601C8 Section 9 Issue 1 Service Manual – 85 – Revision 0...
  • Page 90 LAYOUT DIAGRAMS 9.2. GD52 Keypad PCB Figure 8.2: GD52 Keypad PCB layout diagram Issue 1 Section 9 MCUK000601C8 Revision 0 – 86 – Service Manual...
  • Page 91 LAYOUT DIAGRAMS 9.3. GD92 Main PCB Figure 9.3: Main PCB layout diagram MCUK000601C8 Section 9 Issue 1 Service Manual – 87 – Revision 0...
  • Page 92 LAYOUT DIAGRAMS 9.4. GD92 Keypad PCB Figure 9.4: Keypad PCB layout diagram Issue 1 Section 9 MCUK000601C8 Revision 0 – 88 – Service Manual...

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