CCS Technical Documentation NPM-2NX Series Transceivers Assembly & Disassembly Instructions Issue 1 07/02 ãNokia Corporation
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation Contents Page No Assembling the NPM-2NX Transceiver ........................................................................ 3 Exploded NPM-2NX Assembly ..................................................................................3 Step-by-Step Assembly Instructions ............................................................................4 1. Insert Speaker (and gasket) to A-cover assembly ....................................
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation Assembling the NPM-2NX Transceiver Exploded NPM-2NX Assembly Figure 1: All parts and subassemblies of NPM-2NX Issue 1 07/02 ãNokia Corporation Page 3
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation Step-by-Step Assembly Instructions Wear cover gloves or finger covers and a wrist strap when assembling the phone. 1. Insert Speaker (and gasket) to A-cover assembly Insert a speaker and a gasket together before assembling to A-cover. Be careful with the speaker's springs. Note: Alignment: Speaker gasket's "wings" towards A-cover's screwing towers. 2. Insert Keymat to A-cover Follow steps 1-3 as shown in the figure.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation 3. Insert microphone to system connector Look at the figure above carefully. 4. Insert LCD-module to PWB Remove the display cover tape first. The display “face” needs to be blown with ionized air before assembling. Focus pin at upper end of lightguide (37) to hole in PWB (11) and screw towers of lightguide to cutouts on edge of PWB. LCD module is properly assembled when snaps joints in metal frame (44) clicks to PWB.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation 5. Insert LCD / PWB assembly to A-cover Before assembling LCD / PWB assembly to A-cover, check the placement of speaker assembly in A-cover. Screw towers in A-cover guides LCD / PWB assembly. 6. Insert D-cover assembly D-cover (27) is correctly inserted when you feel four snap joints clicking onto the Acover (1). Push the D-cover assembly downwards quite hard.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation 8. Insert screws The estimated torque according to the screw trial for the all six screws is 22 Ncm and speed of rotation 480 rpm by using Torx+, 1.8x9 Deprag, automatic feeding 708U driver. Screwing order for pre-production is 50, 51, 52, 53, 54, and 55. Screwing order possibilities for testing purposes is limited to six (3!=3x2x1=6). 9.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation 10. Insert dust cap for rf-connector Push the dust cap downwards until it reaches the top surface of the antenna cover. Additional assembly instructions 1. Insert type label to metal deck Focus type label (56) hole to hole located in metal deck (28).
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation 2. Insert battery to NPM-2NX assembly In step one, push the battery (58) against the springs of the battery connector (25). In step two, push the battery from its front end downwards until it snaps onto the metal deck (28). 3. Insert battery-cover to NPM-2NX assembly In step one, push the battery cover (10) downwards in the Z-direction until it hits the Dcover (27).
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation 4. Insert IR-window to A-cover assembly The IR-window is properly inserted when all four snaps are locked. Exploded D-cover assembly Insert volume key (32) before volume switch (31). Push metal deck (28) downwards from its sides near hooks until it snaps into D-cover (27). Push vibrator (29), SIM reader (33) and buzzer (30) into their places in D-cover. Check the correct position of SIM-Reader.
CCS Technical Documentation NPM-2NX Assembly & Disassembly Instructions Disassembling the NPW-2NX Transceiver Preparation for Disassembly Disassembly Tools Shown left to right: Torque-limiting screwdriver (torque set at 22N-cm), fiberglass soldering aid, and T6 Torx+ driver. ESD Protection Some form of ESD protection should be used when handling the PWB and other electronic components. The photo above shows a wrist strap, which can be grounded to a bench.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation Step-by-Step Disassembly Instructions 1. Remove battery-cover from Mozart assembly Slide battery cover backwards in Y-direction while pushing hard from its middle front area using your thumb. Slide the battery cover long enough to release snap joints and hooks on sides of it. 2. Remove dust cap for rf-connector from antenna cover Lift dust cap upwards from its hole using your fingernail or a screwdriver with a chisel point. 3.
CCS Technical Documentation NPM-2NX Assembly & Disassembly Instructions 4. Remove screws The estimated optimal torque for the all six screws is 22 Ncm and the speed of rotation 480 rpm. The unscrewing order for pre-production is in the reverse order to screwing; 55, 54, 53, 52, 51, and 50. The screwing order possibilities for testing purposes is limited to six (3!=3x2x1=6). 5. Remove antenna Wear gloves or rubber fingertips when handling the antenna. 6.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation the D-cover assembly. 7. Remove parts from D-cover assembly Lift vibrator, SIM reader and buzzer out of their slots of D-cover using screwdriver with chisel point or your fingertips. Release both snap joints of volume key before disassembling volume switch.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation 8. Remove LCD / PWB assembly from A-cover Screw towers in A-cover guides LCD / PWB assembly. Note: Gloves and ESD protection are mandatory in this phase of disassembly to prevent fingerprints and damage in engine. 9. Remove LCD-module from PWB LCD module is properly disassembled when two snaps joints in metal frame are released from PWB. Note: Gloves are mandatory if LCD-module will be reused.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation Additional disassembly instructions 1. Remove battery from Mozart assembly Option 1: Lift battery upwards from its front end first by using screwdriver or your fingertip. Option 2: Use your palm as a cup while hitting phone slightly towards the cup, battery side down. 2. Remove speaker and speaker gasket from A-cover Remove speaker and gasket by lifting from gasket using screwdriver or your fingertip.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation 3. Remove IR-window from A-cover assembly Start with snap joint at the middle of IR-lens by pushing it with screw driver with chisel point. There are four snap joints altogether. 4. Remove LCD gasket from A-cover Tear gasket off from A-cover starting from the corner shown in figure above. 5. Remove microphone from system connector Lift microphone and gasket out from system connector.
NPM-2NX Assembly & Disassembly Instructions CCS Technical Documentation This page intentionally left blank.
