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Ericsson M-RK I Disassembly And Assembly
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Ericsson M-RK I Disassembly And Assembly

Ericsson M-RK I Disassembly And Assembly

Personal radio
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• •
CAUTION - BEFORE PROCEEDING -
1. Please read this booklet carefully before carrying out procedures.
2. After reading, keep it somewhere convenient for reference.
3. Always remove BATTERY PACK before procedure, as it may cause a power short.
(See page 2 "1. BATTERY PACK REMOVAL".)
4 . Do not follow any procedures other than what is shown in this booklet as it may cause the main unit
to malfunction.
ericssonz
M-RK I
PERSONAL RADIO
DISASSEMBLY AND ASSEMBLY PROCEDURE
LBI-38741C

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Summary of Contents for Ericsson M-RK I

  • Page 1 LBI-38741C M-RK I PERSONAL RADIO DISASSEMBLY AND ASSEMBLY PROCEDURE • • CAUTION - BEFORE PROCEEDING - 1. Please read this booklet carefully before carrying out procedures. 2. After reading, keep it somewhere convenient for reference. 3. Always remove BATTERY PACK before procedure, as it may cause a power short.

  • Page 2: Battery Pack Removal

    Arrow 2. 2. REAR CASE REMOVAL 1. Loosen the four captive screws (TORX BIND, M2.6X6) on the REAR CASE with the TORX screwdriver (T-8) and remove the REAR CASE. Copyright © December 1992, Ericsson GE Mobile Communications Inc.
  • Page 3 LBI-38741 3. INTERNAL UNIT REMOVAL 1. Remove the REAR CASE, and loosen the two flat screws (M3) on the bottom of the main unit with the screwdriver. 2. Gently pull the loosened screws fully. 3. Loosen the two screws (PANHEAD, M2X6) on both sides at the upper part with the screwdriver and remove them.
  • Page 4 LBI-38741 4. Separate the INTERNAL UNIT from the FRONT CASE. First, disengage the bot- tom part of INTERNAL UNIT as shown, taking care not to damage the fitting be- tween the TOP PANEL and the FRONT CASE. 5. Remove the INTERNAL UNIT from the FRONT CASE being careful not to dam- age the FLEX P.C.B.
  • Page 5 LBI-38741 4. LED FLEX ASSY. REMOVAL 1. Loosen the screw (BTP, M2X3.5) on the back of the LED FLEX ASSY. with the screwdriver and remove it. 2. Loosen the two screws (PANHEAD, M2X2) on both sides of the LED FLEX ASSY.
  • Page 6 LBI-38741 4. Hold the CONNECTOR B with your fingers and remove it taking care not to damage the connector pins. 5. Insert a tool with thin end such as a minus screwdriver at the fitting between the LED FLEX ASSY. and the protruding part of the CHASSIS.
  • Page 7 LBI-38741 2. Remove the three screws (PANHEAD, M2X4 with SW) at the indented parts of the RF SHIELD PLATE, and remove the RF SHIELD PLATE. 3. Remove the two screws (BIND, M2.6X6) on the side of the CASTING with the screwdriver and remove the PA MODULE RETAINER.
  • Page 8 LBI-38741 2. M-RK I ASSEMBLY 1. INTERNAL UNIT ASSEMBLY 1. Put the mounting holes on the RF BOARD ASSY. and the bosses at the mounting holes on the CASTING together, and fit the RF BOARD ASSY. with the CAST- ING.
  • Page 9 LBI-38741 4. Insert the PA MODULE RETAINER into mount- ing holes and secure it by fastening the two screws (BIND, M2.6X6) on the side of the CASTING with the screwdriver. Torque to 3.6 kg/cm ± 10%. 5. Turn the CASTING over and fit the connectors of the RF BOARD ASSY.
  • Page 10 LBI-38741 2. LED FLEX ASSY. INSTALLATION 1. Engage the upper part of the LED FLEX ASSY. with the CASTING. First fit the CHANNEL SWITCH side, then fit the EMERGENCY BUTTON SIDE. 2. After engaging the upper part, fit the bosses of the LOGIC SHIELD PLATE with the holes on both sides of the CASTING.
  • Page 11 LBI-38741 5. Fit the CONNECTOR B securely by pressing the FLEX P.C.B. on the CONNECTOR B with the thumb tip as shown. Note: Be careful not to damage the connector pins. 6. Hold the FLEX P.C.B. of the CONNECTOR A with your fingers, and connect by pressing the FLEX P.C.B.
  • Page 12 LBI-38741 2. Secure the INTERNAL UNIT by fastening the two screws (PANHEAD, M2X6) at the upper part on both sides with the screw- driver. Torque to 1.5 kg/cm ± 10%. 3. Fasten the two flat screws (M3) on the bottom of the FRONT CASE with the screwdriver.

  • Page 13: Disassembly And Assembly Procedure

    LBI-38741 SECTION II M-RK II PERSONAL RADIO DISASSEMBLY AND ASSEMBLY PROCEDURE • • CAUTION - BEFORE PROCEEDING - 1. Please read this booklet carefully before carrying out procedures. 2. After reading, keep it somewhere convenient for reference. 3. Always remove BATTERY PACK before procedure, as it may cause a power short. (See page 14 "1.
  • Page 14 LBI-38741 • • Necessary Tools • • The following tools are necessary for assembly and disassembly. • • TORX screwdriver (T-8) • • Screwdriver (M2) • • Torque wrench with adapters 1. M-RK II DISASSEMBLY 1. BATTERY PACK REMOVAL 1.Make sure that the VOLUME SWITCH is turned off.
  • Page 15 LBI-38741 3. INTERNAL UNIT REMOVAL 1. Remove the REAR CASE, and loosen the two flat screws (M3) on the bottom of the main unit with the screwdriver. 2. Gently pull the loosened screws fully. 3. Loosen the two screws (PANHEAD, M2X6) on both sides at the upper part with the screwdriver and remove them.
  • Page 16 LBI-38741 4. Separate the INTERNAL UNIT from the FRONT CASE. First, disengage the bot- tom part of INTERNAL UNIT as shown, taking care not to damage the fitting be- tween the TOP PANEL and the FRONT CASE. 5. Remove the INTERNAL UNIT from the FRONT CASE being careful not to dam- age the FLEX P.C.B.
  • Page 17 LBI-38741 4. LCD/KB FLEX ASSY. REMOVAL 1. Loosen the screw (BTP, M2X3.5) on the back of the LCD/KB FLEX ASSY. with the screwdriver and remove it. 2. Loosen the two screws (PANHEAD, M2X2) on both sides of the LCD/KB FLEX ASSY. with the screwdriver and re- move them.
  • Page 18 LBI-38741 4. Hold the CONNECTOR B with your fingers and remove it taking care not to damage the connector pins. 5. Insert a tool with thin end such as a minus screwdriver at the fitting between the LCD/KB FLEX ASSY. and the protruding part of the CHASSIS.
  • Page 19 LBI-38741 2. Remove the three screws (PANHEAD, M2X4 with SW) at the indented parts of the RF SHIELD PLATE, and remove the RF SHIELD PLATE. 3. Remove the two screws (BIND, M2.6X6) on the side of the CASTING with the screwdriver and remove the PA MODULE RETAINER.
  • Page 20 LBI-38741 2. M-RK II ASSEMBLY 1. INTERNAL UNIT ASSEMBLY 1. Put the mounting holes on the RF BOARD ASSY. and the bosses at the mounting holes on the CASTING together, and fit the RF BOARD ASSY. with the CAST- ING. 2.
  • Page 21 LBI-38741 4. Insert the PA MODULE RETAINER into mount- ing holes and secure it by fastening the two screws (BIND, M2.6X6) on the side of the CASTING with the screwdriver. Torque to 3.6 kg/cm ± 10%. 5. Turn the CASTING over and fit the connectors of the RF BOARD ASSY.
  • Page 22 LBI-38741 2. LCD/KB FLEX ASSY. INSTALLATION 1. Engage the upper part of the LCD/KB FLEX ASSY. with the CASTING. First fit the CHANNEL SWITCH side, then fit the EMERGENCY BUTTON SIDE. 2. After engaging the upper part, fit the bosses of the LOGIC SHIELD PLATE with the holes on both sides of the CASTING.
  • Page 23 LBI-38741 5. Fit the CONNECTOR B securely by pressing the FLEX P.C.B. on the CONNECTOR B with the thumb tip as shown. Note: Be careful not to damage the connector pins. 6. Hold the FLEX P.C.B. of the CONNECTOR A with your fingers, and connect by pressing the FLEX P.C.B.
  • Page 24 LBI-38741 2. Secure the INTERNAL UNIT by fastening the two screws (PANHEAD, M2X6) at the upper part on both sides with the screw- driver. Torque to 1.5 kg/cm ± 10%. 3. Fasten the two flat screws (M3) on the bottom of the FRONT CASE with the screwdriver.
  • Page 25 LBI-38741 M-RK SCAN PERSONAL RADIO DISASSEMBLY AND ASSEMBLY PROCEDURE • • CAUTION - BEFORE PROCEEDING - 1. Please read this booklet carefully before carrying out procedures. 2. After reading, keep it somewhere convenient for reference. 3. Always remove BATTERY PACK before procedure, as it may cause a power short. (See page 26 "1.
  • Page 26 LBI-38741 • • Necessary Tools • • The following tools are necessary for assembly and disassembly. • • TORX screwdriver (T-8) • • Screwdriver (M2) • • Torque wrench with adapters 1. M-RK SCAN DISASSEMBLY 1. BATTERY PACK REMOVAL 1.Make sure that the VOLUME SWITCH is turned off.
  • Page 27 LBI-38741 3. INTERNAL UNIT REMOVAL 1. Remove the REAR CASE, and loosen the two flat screws (M3) on the bottom of the main unit with the screwdriver. 2. Gently pull the loosened screws fully. 3. Loosen the two screws (PANHEAD, M2X6) on both sides at the upper part with the screwdriver and remove them.
  • Page 28 LBI-38741 4. Separate the INTERNAL UNIT from the FRONT CASE. First, disengage the bot- tom part of INTERNAL UNIT as shown, taking care not to damage the fitting be- tween the TOP PANEL and the FRONT CASE. 5. Remove the INTERNAL UNIT from the FRONT CASE being careful not to dam- age the FLEX P.C.B.
  • Page 29 LBI-38741 4. LCD/KB FLEX ASSY. REMOVAL 1. Loosen the screw (BTP, M2X3.5) on the back of the LCD/KB FLEX ASSY. with the screwdriver and remove it. 2. Loosen the two screws (PANHEAD, M2X2) on both sides of the LED FLEX ASSY.
  • Page 30 LBI-38741 4. Hold the CONNECTOR B with your fingers and remove it taking care not to damage the connector pins. 5. Insert a tool with thin end such as a minus screwdriver at the fitting between the LCD/KB FLEX ASSY. and the protruding part of the CHASSIS.
  • Page 31 LBI-38741 2. Remove the three screws (PANHEAD, M2X4 with SW) at the indented parts of the RF SHIELD PLATE, and remove the RF SHIELD PLATE. 3. Remove the two screws (BIND, M2.6X6) on the side of the CASTING with the screwdriver and remove the PA MODULE RETAINER.
  • Page 32 LBI-38741 2. M-RK SCAN ASSEMBLY 1. INTERNAL UNIT ASSEMBLY 1. Put the mounting holes on the RF BOARD ASSY. and the bosses at the mounting holes on the CASTING together, and fit the RF BOARD ASSY. with the CAST- ING. 2.
  • Page 33 LBI-38741 4. Insert the PA MODULE RETAINER into mount- ing holes and secure it by fastening the two screws (BIND, M2.6X6) on the side of the CASTING with the screwdriver. Torque to 3.6 kg/cm ± 10%. 5. Turn the CASTING over and fit the connectors of the RF BOARD ASSY.
  • Page 34 LBI-38741 2. LED FLEX ASSY. INSTALLATION 1. Engage the upper part of the LCD/KB FLEX ASSY. with the CASTING. First fit the CHANNEL SWITCH side, then fit the EMERGENCY BUTTON SIDE. 2. After engaging the upper part, fit the bosses of the LOGIC SHIELD PLATE with the holes on both sides of the CASTING.
  • Page 35 LBI-38741 5. Fit the CONNECTOR B securely by pressing the FLEX P.C.B. on the CONNECTOR B with the thumb tip as shown. Note: Be careful not to damage the connector pins. 6. Hold the FLEX P.C.B. of the CONNECTOR A with your fingers, and connect by pressing the FLEX P.C.B.
  • Page 36 FLEX P.C.B. of the CON- NECTOR A between the REAR CASE and the FRONT CASE. Note: Fastening torque should not be over 3.5Kg-cm. Ericsson Inc. Private Radio Systems Mountain View Road Lynchburg,Virginia 1-800-528-7711 (Outside USA, 804-528-7711)