Panasonic GD90 Service Manual
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Panasonic GD90 Service Manual

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GD90 Personal Cellular Telephone
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
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 Frequency
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%
Unless stated these specifications are with Battery Pack (EB-BSD90) fitted.
WARNING
Order Number: MCUK990801C8
Handheld Portable
Specification
900 MHz
Tx: 890 - 915 MHz
Tx: 1710 - 1785 MHz
Rx: 935 - 960 MHz
Rx: 1805 - 1880 MHz
45 MHz
200 kHz
124
Full rate/Half rate/Enhanced
Full rate/Half rate
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
282MHz and 45MHz
50 Ω
<2.1 : 1
Height: 118 mm
Width:
42 mm
Depth: 16.5 mm
84.5 cc
88 g
Graphical chip on glass liquid crystal, Alphanumeric 16 x 3
characters, 5 icons and 6 x 1 characters
Green:
4 LEDs for the LCD
8 LEDs for the keyboards
1 LED Incoming call
Red:
1 LED Charging indicator
17 keys, Navigation key
Plug-in type only
3.6 V
3.6 V
95 hrs maximum
200 minutes
Battery life figures are dependent on network conditions.
EB-GD90
1800 MHz
95 MHz
374

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  • Page 1 Order Number: MCUK990801C8 GD90 Personal Cellular Telephone Handheld Portable EB-GD90 Specification 900 MHz 1800 MHz Frequency range Tx: 890 - 915 MHz Tx: 1710 - 1785 MHz Rx: 935 - 960 MHz Rx: 1805 - 1880 MHz Tx/Rx frequency separation...
  • Page 2 This Service Manual is copyright and issued on the strict understanding that it is not to be reproduced, copied, or disclosed to any third party, either in whole or 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 – MCUK990801C8 Revision 0 Service Manual...

  • Page 5: Table Of Contents

    CONTENTS 1 INTRODUCTION Purpose of this Manual ......1 Structure of the Manual ......1 Servicing Responsibilities .
  • Page 6 This page is left intentionally blank. Issue 1 Section MCUK990801C8 Revision 0 – vi – Service Manual...

  • Page 7: Introduction

    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 8 INTRODUCTION This page is left intentionally blank. Issue 1 Section 1 MCUK990801C8 Revision 0 – 2 – Service Manual...

  • Page 9: General Description

    This section provides a general description and kit composition details for the GSM Handportable Telephone system and optional kits. GD90 is a high performance, small, light, business GSM telephone. The following features are included as standard: Triple Rate which includes Full Rate, Half Rate and enhanced Full Rate speech, codec.
  • Page 10 GENERAL DESCRIPTION This page is left intentionally blank. Issue 1 Section 2 MCUK990801C8 Revision 0 – 4 – Service Manual...

  • Page 11: Operating Instructions

    OPERATING INSTRUCTIONS OPERATING INSTRUCTIONS 3.1 General This section provides a brief guide to the operation and facilities available on the GD90 handportable unit. Refer to the Operating Instructions for full operational information. 3.2 LCD Display The GD90 handportable unit has a graphical chip on glass liquid crystal display in conjunction with the following icons:...

  • Page 12: Location Of Controls

    Connector REAR VIEW 10024-1 Figure 3.2: Location of controls for GD90 Navigation Key. Scrolls through options or features menu and increases or decreases volume. Select Key. Selects option shown in the Option Area of the display. Phonebook Key. Browses through the Phonebook or stores a number in the Phonebook.

  • Page 13: Concept Of Operation

    OPERATING INSTRUCTIONS 3.4 Concept of Operation There is a close relationship between the Select Key, Navigation Key and display. 1 1 0 2 5 - 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 14: Hot Key Dial Source List

    OPERATING INSTRUCTIONS 3.7 Hot Key Dial Source List The source for Hot Key Dial Numbers is normally ‘Phonebook’ or ‘Service Dial Numbers’. For some OEMs it may be a requirement to store these numbers in the EEPROM. When the source is the EEPROM and the telephone software is updated, the source numbers may be lost.

  • Page 15: Public Man Machine Interface (Mmi)

    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 that are supported by GD90. The * and # in the following procedures should be replaced by , respectively.

  • Page 16: Calling Line Identification

    OPERATING INSTRUCTIONS 3.9.6 Calling Line Identification Calling Line Identification Feature Service Code Calling Line Identification Presentation (CLIP) Calling Line Identification Restriction (CLIR) Connected Line Presentation (CLOP) Connected Line Restriction (CLOR) Enable * <SERVICE CODE> * # <SND> Disable # <SERVICE CODE> * # <SND> Temporary suppress identification # 3 1 # <TELEPHONE NUMBER>...

  • Page 17: Call Bar

    OPERATING INSTRUCTIONS Status * # <SERVICE CODE> * <TELECOMMUNICATION SERVICE> * # <SND> Clear all Call Diverts # # 0 0 2 # 3.9.9 Call Bar Call Bar Type Service Code All outgoing calls Outgoing international calls Outgoing international calls except those to your PLMN country All incoming calls Incoming international calls when roaming * <PASSWORD>...

  • Page 18: Troubleshooting

    OPERATING INSTRUCTIONS 3.10Troubleshooting The user is given the following information and advised to contact the dealer if the problems persist: Problem Cause Remedy Telephone will not switch Check that the battery pack is fully charged and correctly connected to the telephone. Extremely short battery The network you are using and the condition Avoid areas of poor reception.

  • Page 19: Security Codes

    3.13.2 Testing To test a personalised GD90, when the user has not supplied the SIM, a SIM configured for test purposes (e.g. test SIM or soft SIM) should be used. The mobile will recognise that the SIM is for testing purposes only and operate as normal.

  • Page 20: Gsm Services Supported By Pc Card

    OPERATING INSTRUCTIONS 3.13.5 Enabling Procedure 5 2 8 2 4 B B to point at “SIM” for SIM Personalisation ”Network” for Network Personalisation “Subnetwork” for Subnetwork Personalisation ”SP” for Service Provider Personalisation or ”Corporate” for Company Personalisation. the 16 digit Control Key. the 16 digit Control Key.
  • Page 21 OPERATING INSTRUCTIONS Network Country Access Code Network Operator Code China Guangdong MCC China United Telecommuni-cations Corporation Liaoning PPTA Croatia +385 HR Cronet Cyprus +357 Cyprus Telecommunication Authority Czech Republic Eurotel Praha Radio Mobil Germany DeTeMobil GmbH Mannesmann Mobilfunk Denmark TELE Danmark Mobile Sonofon Telia Mobilix...
  • Page 22 OPERATING INSTRUCTIONS Network Country Access Code Network Operator Code India Bharti Cellular Limited BPL Mobile Skycell Airtel Essar Maxtouch Command Mobilenet RPG MAA Modi Telstra Sterling Cellular BPL USWest TATA Escotel Aircel Digilink Indonesia PT Telekomunikasi Indonesia PT. Satelit Palapa Indonesia PT Excelcomindo Pratama Iran (Islamic Republic of) T.C.I...
  • Page 23 OPERATING INSTRUCTIONS Network Country Access Code Network Operator Code Myanmar Namibia +264 Netherlands LIBERTEL PTT Telecom New Caledonia +687 Mobilis New Zealand Bell South Norway Telenor Mobil AS NetCom GSM A/S Oman +968 General Telecoms Pakistan Mobilink Papua New Guinea +675 Pacific Philippines...

  • Page 24: Glossary Of Terms

    OPERATING INSTRUCTIONS Network Country Access Code Network Operator Code Ukraine +380 Mobile comms Golden Telecom United Arab Emirates +971 UAE ETISALAT-G1 UAE ETISALAT-G2 United Kingdom Vodafone Cellnet (Guernsey) Guernsey Telecoms (Jersey) Jersey Telecoms (Isle of Man) Manx Telecom Uzbekistan Daewoo GSM Coscom Buztel Vietnam...

  • Page 25: Disassembly / Reassembly Instructions

    DISASSEMBLY / REASSEMBLY INSTRUCTIONS 4.1 General This section provides disassembly and reassembly procedures for the main components of the GD90 system. These procedures MUST be performed by qualified service personnel, at an authorized service centre. The following warnings and precautions MUST be observed during ALL disassembly/reassembly operations: WARNING The equipment described in this manual contains polarised capacitors utilising liquid electrolyte.

  • Page 26: Disassembly

    DISASSEMBLY / REASSEMBLY INSTRUCTIONS 4.2 Disassembly 4.2.1 Case Removal Remove the battery from the back of the telephone. Remove the four case screws located inside the battery compartment. Figure 4.1: Screw removal Remove the case by pulling from the connector end of the case/cover. Care must be taken when separating the case from the cover as the retaining clips may be very stiff –...
  • Page 27 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 4.2.2 Changing the Backup Battery Remove the case as previously described. The backup battery is held in a retainer on the Main PCB. Observe polarity when replacing the battery. Figure 4.4: Battery Polarity 4.2.3 Access to Printed Circuit Boards Remove the case as previously described.
  • Page 28 DISASSEMBLY / REASSEMBLY INSTRUCTIONS Gently bend the four Display Assembly lugs to allow removal from the Key PCB. Figure 4.7: Display Assembly removal 4.2.4 Case-Mounted Components Remove the keypad by peeling it away from the case front. Figure 4.8: Removing the keypad Remove the rubber boot which contains the microphone.

  • Page 29: Reassembly

    DISASSEMBLY / REASSEMBLY INSTRUCTIONS Unclip the speaker holder and lift out the speaker.. Figure 4.10: Speaker removal Remove the Memo button by pressing a screwdriver against the actuator spring. Figure 4.11: Memo button removal The Vibrate motor may be removed by gently applying pressure under the spindle/counterweight. Figure 4.12: Vibrate motor removal 4.3 Reassembly Care must be taken when reinstalling the back onto the telephone case.
  • Page 30 DISASSEMBLY / REASSEMBLY INSTRUCTIONS This page is left intentionally blank. Issue 1 Section 4 MCUK990801C8 Revision 0 – 24 – Service Manual...

  • Page 31: Technical Specifications

    TECHNICAL SPECIFICATIONS TECHNICAL SPECIFICATIONS 5.1 Tx Characteristics All data is applicable to GSM 900 and GSM 1800 except where stated. 5.1.1 Frequency error ± 0.1ppm max., relative to base station frequency. 5.1.2 Modulation phase error RMS: ≤5° Peak: ≤20° 5.1.3 Output RF Spectrum due to Modulation Offset from Centre Frequency (kHz) Maximum Level Relative to the Carrier (dB) ±100...

  • Page 32: Residual Peak Power

    TECHNICAL SPECIFICATIONS 5.1.6 Output Level, Dynamic Operation GSM 900 Tolerance for Conditions (dB) Transmitter Output Power Power Control Level (dBm) Normal Extreme ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±3 ±4 ±3...

  • Page 33: Rx Characteristics

    TECHNICAL SPECIFICATIONS 5.2 Rx Characteristics 5.2.1 Sensitivity GSM 900 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. Propagation Conditions Propagation Conditions Propagation Conditions...
  • Page 34 TECHNICAL SPECIFICATIONS GSM 1800 Half 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. Propagation Conditions Propagation Conditions Propagation Conditions Channels TUhigh...

  • Page 35: Test And Measurement

    Section 6.6 Lock code: describes the procedure to check or reset the lock code using the Channel box software. 6.2 External Testing The GD90 unit can be connected to a compatible personal computer for electronic adjustment and fault diagnosis. This section provides a description of the equipment required to perform those tasks.
  • Page 36 TEST AND MEASUREMENT Power Supply Provides 12 V DC supply to the Interface Box IFB003 or IFB004. External Battery Supply Unit Part Number: JT00021 Provides 3.6 V DC supply to the Interface Box IFB003 or IFB004 to compensate for the current drain when the Unit Under Test is used at full transmit power.
  • Page 37 The interface cable allows connection between a computer and the Unit Under Test via IFB003. Figure 6.5: Interface Cable Channel Box Software This is the test software for the GD90 unit and should be installed onto the personal computer to be used for testing. MCUK990801C8 Section 6...

  • Page 38: Complete Unit Test Setup

    TEST AND MEASUREMENT 6.3 Complete Unit Test Setup Figure 6.6: Complete unit test setup Issue 1 Section 6 MCUK990801C8 Revision 0 – 32 – Service Manual...
  • Page 39 TEST AND MEASUREMENT 6.3.1 External Testing Setup Procedure IMPORTANT NOTE To allow accurate measurement of the complete unit the test equipment must be connected as shown (Figure 6.7). 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 6.6.
  • Page 40 TEST AND MEASUREMENT c. PC Channel box software loaded and the screen indicating as shown: Figure 6.8: PC Screen (SCRN10) Press ENTER on the PC keyboard. Switch on the +12 V supply. At the PC press F10. At the Interface box switch the power to ON. Steps 5 and 6 above must be carried out within 1 second or power ON will time-out.
  • Page 41 TEST AND MEASUREMENT Ensure that the following settings are made: a. Interface box IFB003 Power: UP position IGN: DOWN position MODE: UP position b. Power supply +12V DC: c. PC Channel box software loaded and the screen indicating as shown: Figure 6.10: PC Screen (SCRN9) On the PC, select NORMAL MODE and press ENTER.

  • Page 42: Channel Box Test Commands

    TEST AND MEASUREMENT 6.4 Channel Box Test Commands The following table outlines the commands available using the channel-box software. After the handheld unit has been switched on (Section 6.3), use the up/down scroll keys on the personal computer keyboard to select the channel-box command. Use the left/right scroll keys to display the required indication and press the ENTER key to select the displayed function.

  • Page 43: Adjustment Mode

    TEST AND MEASUREMENT CHANNEL BOX COMMAND INDICATION FUNCTION SET ER.DISP <ENABLE> Unit error codes will be displayed on the UUT <DISABLE> display Unit error codes will not be displayed on the UUT display SOFT SIM <ENABLE> <DISABLE> With ENABLE set and TEST MODE <TERM> the UUT is removed from test mode and can be placed into call mode TEST MODE...
  • Page 44 TEST AND MEASUREMENT 6.5.1 Ramping Gain The carrier power must be measured and calibrated for each power level at channel 62. GSM 900 Initial Peak Power Tolerance Change per Power Level Calibration (dBm) (dBm) Value 32.2 ±0.5 10.0 30.8 ±0.8 ±1 ±1 ±1...
  • Page 45 TEST AND MEASUREMENT Calibration of output power on each power level To be able to calibrate the ramping gain it is first necessary to switch the unit into Test Mode (Section 6.3.1). This procedure must be followed for all power levels PL5 to PL19, for low, middle and high channels for GSM 900. GSM 1800 shall be calibrated for all power levels PL0 to PL15 for top middle and bottom channels.
  • Page 46 TEST AND MEASUREMENT Select VIEW TRIM PL MCH, and make a note of this value. Figure 6.15: Power level view 2 Perform the following calculation and make a note of the result: New Trim value = Old Trim Value + (Required Power - Measured Power) X Change per dB (step 5) (table) (step2)
  • Page 47 TEST AND MEASUREMENT Select PROGRAM TRIM PL MCH GSM. Figure 6.17: Power level selection 2 Highlight the PL14 field and press ENTER. Figure 6.18: Power level selection 3 10. Enter the value calculated in step 6 into the data field and then press ENTER. 11.
  • Page 48 TEST AND MEASUREMENT PL0 (limits ±0.2dB) NOTE: Calibration data exists for GSM 1800 low and high channels, but is not used. Channel GSM900 GSM1800 Low/Bottom High/Top 6.5.2 RSSI This procedure describes the calibration of RSSI on the Mid-channel (Mch = Ch 60). This process must be carried out for LOW/ BOTTOM CHANNEL and HIGH/TOP CHANNEL.
  • Page 49 TEST AND MEASUREMENT At the Channel box press F7 to view data. Figure 6.20: RSSI reading 1 Select TRIM OTHER and make a note of the RSSI COMP GSM reading. Figure 6.21: RSSI reading 2 Press ESC. MCUK990801C8 Section 6 Issue 1 Service Manual –...
  • Page 50 TEST AND MEASUREMENT 10. At the Channel box press F6 to program data. Figure 6.22: RSSI reading 3 11. Select TRIM RSSI and press ENTER. 12. Make the following calculation: RSSI offset value (from step 8) + reading noted in step 6. Enter the result into RSSI COMP field for example: 10+ 5 = 15 Figure 6.23: RSSI reading 4 13.

  • Page 51: I And Q Values

    TEST AND MEASUREMENT 17. Repeat steps 6 to 15 for GSM 1800 on the channels listed below. Channel GSM 1800 6.6 I and Q Values NOTE: By observing the image leakage and adjusting the relative gain between I and Q channels, phase error and modulation spectrum can be improved.
  • Page 52 TEST AND MEASUREMENT If image leak ratio is greater than 30 dBc then unit is OK. (offset calibration is complete). If image leak ratio is less than 30 dBc then proceed to Ich gain calibration. Qch Gain Calibration Set IQch gain to -0.25 dB. a.
  • Page 53 TEST AND MEASUREMENT 6.6.1 Simple Receiver Test The following procedure gives a method by which the Unit Under Test (UUT) can be placed into a condition allowing the service technician to probe the entire receive RF path. Input level and frequency can also be specified. To perform the following procedure the UUT must first be placed into Test Mode.
  • Page 54 TEST AND MEASUREMENT 16. Press [F6]. Go to, and select: "TRIM Other" again. Go to, and select: "BAT TEMP". Enter value from step 14 above. Charging Calibration 17. For this procedure, set up the equipment as follows. a. Connect 82 Ω 1 W resistor between VBAT and Ground. b.

  • Page 55: Lock Code

    TEST AND MEASUREMENT 6.7 Lock Code NOTE: See Section 6.2.1 for a list of the equipment and setup procedures required to perform the following adjustment and calibration procedures. To perform the following procedures the UUT must be placed into Test Mode. 6.7.1 Check current lock code At the Channel box press F4 and highlight VIEW LOCK CONDITION.
  • Page 56 TEST AND MEASUREMENT 6.7.2 Change current lock code At the Channel box press SHIFT and F4 and highlight PROG LOCK CONDITION. Press ENTER. Press ENTER to unlock the Unit Under Test. The current lock code will be used. Figure 6.26: Program lock code Enter “0000”...
  • Page 57 REPLACEMENT PARTS LIST REPLACEMENT PARTS LIST 9.1 Case Parts Figure 9.1: Case Parts Part Number Description Part Number Description M104 2EA554AAAA LCD PANEL, BLUE AN76031AAAA ANTENNA, BLUE " 2EA554AABA LCD PANEL, GOLD " AN76031AABA ANTENNA, GOLD M105 2CA511AAAA MEMO KEY BUTTON (Dark) BD76012A VIBRATE MOTOR ASSEMBLY "...

  • Page 58: Main Pcb - Rf

    REPLACEMENT PARTS LIST 9.2 Sub-Assemblies Figure 9.2: Sub-Assemblies Part Number Description Part Number Description M113 2QA548A LCD BACKLIGHT GD90BRDxxx MAIN PCB M117 2FA528A CHASSIS HB76004A BUZZER AA76004B LCD MODULE PY76011B RF CONNECTOR JJ76002A BATTERY CONTACT " " " " PY76024A PCB CONNECTOR, MAIN-KEYPAD GD90KPCB01 KEYPAD PCB...

  • Page 59: Keypad Pcb

    C114 F1G1H470A409 CAP CER 47pF 5% 50V SMD 1005 GD90BRD009 GD90 MAIN PCB ASSEMBLY HUTCHISON PROGRAM GD90BRD010 GD90 MAIN PCB ASSEMBLY PLUS GSM PROGRAM C116 F1G0J1040003 CAP CER 0.1µF 10% 6.3V SMD 1005 C119 F1G1H5R0A404 CAP CER 5pF +/-0.25pF 50V SMD 1005...
  • Page 60 Model: EB-GD90 Name: Main PCB Model: EB-GD90 Name: Main PCB Ref: Part Number Description Grid Ref: Part Number Description Grid C148 F1G1H3R0A442 CAP CER 3pF +/-0.25pF 50V SMD 1005 C233 F1G1H4R0A404 CAP CER 4pF +/- 0.25pF 50V SMD 1005 C149...

  • Page 61: Main Pcb

    Model: EB-GD90 Name: Main PCB Model: EB-GD90 Name: Main PCB Ref: Part Number Description Grid Ref: Part Number Description Grid C330 F1G1H3R0A442 CAP CER 3pF +/-0.25pF 50V SMD 1005 C514 ECUE1C104ZFQ CAP CER 0.1µF +80-20% 16V Y5V SMD 1005 C332 F1G1H3R0A442 CAP CER 3pF +/-0.25pF 50V SMD 1005...

  • Page 62: Keypad Pcb

    Model: EB-GD90 Name: Main PCB Model: EB-GD90 Name: Main PCB Ref: Part Number Description Grid Ref: Part Number Description Grid C611 ECUE1C104ZFQ CAP CER 0.1µF +80-20% 16V Y5V SMD 1005 C650 F1G1H101A016 CAP CER 100pF +/-5% 50V SMD 1005 C612 ECUE1C104ZFQ CAP CER 0.1µF +80-20% 16V Y5V SMD 1005...

  • Page 63: Case Parts

    Model: EB-GD90 Name: Main PCB Model: EB-GD90 Name: Main PCB Ref: Part Number Description Grid Ref: Part Number Description Grid D625 MAZS0750ML DIODE ZENER 7V5 SMD SS-MINI 2PIN L209 G1C56NJ00007 INDUCTOR 56nH 5% SMD 1005 D627 MAZS0750ML DIODE ZENER 7V5 SMD SS-MINI 2PIN...

  • Page 64: Sub-Assemblies

    Model: EB-GD90 Name: Main PCB Model: EB-GD90 Name: Main PCB Ref: Part Number Description Grid Ref: Part Number Description Grid Q350 B1ABCB000024 TRANSISTOR 2SC4226 NPN SMD SOT323 R150 ERJ2GEJ820X CHIP RESISTOR 82 OHM +/-5% 1/16W SM 1005 Q501 B1CFJC000001 TRANSISTOR DUAL FET N-CH SMD SC70-66...

  • Page 65: Handheld Replacement Parts List

    Model: EB-GD90 Name: Main PCB Model: EB-GD90 Name: Main PCB Ref: Part Number Description Grid Ref: Part Number Description Grid R318 ERJ2GEJ560X CHIP RESISTOR 56 OHM +/-5% 1/16W SM 1005 R530 ERJ2GE0R00X RES JUMPER 0 OHM 1A SMD 1005 R319...
  • Page 66 Model: EB-GD90 Name: Main PCB Model: EB-GD90 Name: Main PCB Ref: Part Number Description Grid Ref: Part Number Description Grid R642 ERJ2GEJ104X CHIP RESISTOR 100K OHM +/-5% 1/16W SM 1005 U507 UY76051A IC BA3891KV CHARGE ASIC SMD QFP48 R643 ERJ2GEJ561X...
  • Page 67 9.3.3 Keypad PCB Model: EB-GD90 Name: Keypad PCB Ref: Part Number Description Grid Model: EB-GD90 Name: Keypad PCB L701 HK100582NJT INDUCTOR 82nH 5% SMD 1005 Ref: Part Number Description Grid L702 HK100582NJT INDUCTOR 82nH 5% SMD 1005 C701 ECUE1C104ZFQ CAP CER 0.1µF +80-20% 16V Y5V SMD 1005...

  • Page 68: Refurbishment Kits

    SERVICE FRONT COVER ASSEMBLY GOLD Model: EB-GD70 Name: Mechanical Items Part Number Description Notes M104 2EA554AAAA GD90 LCD PANEL STANDARD PANASONIC BLUE M104 2EA554AABA GD90 LCD PANEL STANDARD PANASONIC GOLD 9R9000B REFURBISHMENT KIT, BLUE M105 2CA511AAAA GD90 MEMO KEY (DARK)

  • Page 69: Printed Material

    DANISH, GERMAN, EUROPEAN WARRANTY On the rear cover of each manual there is a part number. The suffix to this number is the issue level of the manual. For example, the part number for the English GD90 instruction is GD90DPKEUB DUTCH, FRENCH, GERMAN, EUROPEAN 7LB230A where the suffix ’A’...

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