Ericsson MPI-II VHF User Manuals

Table of Contents

• INTRODUCTION

  1
• DISASSEMBLY PROCEDURE

  1
• TOOLS NEEDED

  1
• BATTERY

  1
• Figure 1 - Removing The Battery Pack

  1
• FRONT COVER

  2
• SYNTHESIZER BOARD

  2
• REAR COVER

  2
• BNC CONNECTOR

  2
• UDC COVER

  2
• TOP COVER

  2
• SIDE PANEL

  2
• PERSONALITY PROGRAMMING

  2
• PROGRAMMING

  2
• ALIGNMENT AND TEST

  2
• Figure 2 - Disassembly

  2
• TEST EQUIPMENT

  3
• TEST SETUP

  3
• TRANSMITTER ALIGNMENT

  3
• Figure 3 - Test Setup

  3
• Figure 4 - Location Of Tuning Controls And Test Points

  4
• RECEIVER ALIGNMENT

  5
• TROUBLESHOOTING

  5
• TRANSMITTER

  5
• RECEIVER

  6
• SYNTHESIZER

  6
• COMPONENT REPLACEMENT

  7
• SURFACE MOUNT COMPONENTS

  7
• SURFACE MOUNT REMOVAL

  7
• Figure 5 - Reference Oscillator (Input To PLL U201)

  7
• Figure 6 - Fin (Input to U201)

  7
• Figure 7 - Remp (Generated In U201)

  7
• Figure 8 - SYN EN (Input To Pin 13 Of U201)

  7
• SURFACE MOUNT COMPONENT REPLACEMENT

  8
• SURFACE MOUNTED INTEGRATED CIRCUIT REPLACEMENT

  8
• MODULE REPLACEMENT

  8
• PREVENTIVE MAINTENANCE

  8
• BATTERY INFORMATION

  8
• REDUCED CAPACITY

  8
• Figure 9 - Typical Ni-Cad Cell Discharge Curve

  8
• Figure 10 - Alternate IF Option

  8
• MODIFICATION INSTRUCTIONS

  9