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Precision 7750

Service Manual

Regulatory Model: P44E
Regulatory Type: P44E001

May 2020
Rev. A00

Summary of Contents for Precision 7750

Page 1: ...Precision 7750 Service Manual Regulatory Model P44E Regulatory Type P44E001 May 2020 Rev A00 ...

Page 2: ...o la pérdida de datos y le explica cómo evitar el problema AVISO Un mensaje de AVISO indica el riesgo de daños materiales lesiones corporales o incluso la muerte 2020 Dell Inc o sus filiales Todos los derechos reservados Dell EMC y otras marcas comerciales son marcas comerciales de Dell Inc o de sus filiales Puede que otras marcas comerciales sean marcas comerciales de sus respectivos propietarios...

Page 3: ...ón de la tarjeta SD 17 Puerta de la SSD 17 Removing SSD door 17 Installing SSD door 18 Unidad de estado sólido M 2 secundaria 19 Removing the secondary M 2 Solid state drive 19 Installing the secondary M 2 SSD module 20 Cubierta de la base 21 Removing the base cover 21 Installing the base cover 24 Batería 26 Precauciones para batería de iones de litio 26 Removing the battery 26 Installing the batt...

Page 4: ...7 Removing the power button assembly with fingerprint reader 47 Installing the power button assembly with fingerprint reader 48 Marco interno 49 Removing the inner frame 49 Installing the inner frame 50 Compartimento para tarjetas inteligentes 51 Removing the smart card reader 51 Installing the smart card reader 52 Botón de la almohadilla de contacto 53 Removing the Touchpad buttons 53 Installing ...

Page 5: ...ing the camera non touch 90 Installing the camera 91 Placa del sensor P 92 Extracción de la placa del sensor P 92 Instalación de la placa del sensor P 93 Cable de pantalla 93 Removing the display cable 93 Installing the display cable 95 Display back cover 96 Replacing the display cable 96 4 Solución de problemas 98 Diagnóstico de verificación de rendimiento del sistema previo al arranque de Dell S...

Page 6: ...ubre los daños por reparaciones no autorizadas por Dell Lea y siga las instrucciones de seguridad que se incluyen con el producto PRECAUCIÓN Para evitar descargas electrostáticas toque tierra mediante el uso de un brazalete antiestático o toque periódicamente una superficie metálica no pintada al mismo tiempo que toca un conector de la parte posterior del equipo PRECAUCIÓN Manipule los componentes...

Page 7: ...ta madre Quite la batería de las tabletas laptops Bonding Enlaces El bonding es un método para conectar dos o más conductores de conexión a tierra a la misma toma potencial Esto se lleva a cabo con un kit de descarga electrostática ESD de servicio de campo Cuando conecte un cable en bonding asegúrese siempre de que esté conectado directamente al metal y no a una superficie pintada o no metálica La...

Page 8: ...se con regularidad con un probador de brazalete a fin de evitar dañar el hardware contra ESD de manera accidental Se recomienda probar la muñequera y el cable de conexión al menos una vez por semana Probador de pulseras contra ESD los alambres dentro de una pulsera contra ESD son propensos a dañarse con el tiempo Cuando se utiliza un kit no supervisado es una mejor práctica probar periódicamente l...

Page 9: ...portar los componentes sensibles Después de manipular el interior de la computadora Sobre esta tarea Una vez finalizado el procedimiento de instalación asegúrese de conectar los dispositivos externos las tarjetas y los cables antes de encender el equipo Pasos 1 Conecte los cables telefónicos o de red al equipo PRECAUCIÓN Para conectar un cable de red enchúfelo primero en el dispositivo de red y de...

Page 10: ...rsonales con unos 6 mil millones de dispositivos vendidos Sin embargo la necesidad de brindar una mayor velocidad sigue aumentando debido a los hardware informáticos cada vez más rápidos y a las demandas de ancho de banda más exigentes La 1 ª generación de USB 3 0 USB 3 1 finalmente tiene la respuesta a las demandas de los consumidores con una velocidad en teoría 10 veces más rápida que la de su p...

Page 11: ... camino entre algunos productos que anteriormente no eran habituales para los puertos USB como los sistemas de almacenamiento de RAID externos A continuación se enumeran algunos de los productos SuperSpeed USB 3 0 USB 3 1 de 1 ª generación Discos duros externos de escritorio USB 3 0 USB 3 2 de 1 ª generación Discos duros portátiles USB 3 2 de 1 ª generación Adaptadores y acoplamiento de unidades U...

Page 12: ...e banda y tan rápido como un conector Thunderbolt de primera generación USB de tipo C no es lo mismo que USB 3 2 USB de tipo C es solo una forma del conector y la tecnología subyacente podría ser USB 2 o USB 3 0 De hecho la tableta N1 de Nokia con Android utiliza un conector USB de tipo C pero la tecnología subyacente es USB 2 0 ni siquiera USB 3 0 Sin embargo estas tecnologías están estrechamente...

Page 13: ...lvente lo que elimina la necesidad de un cable de audio independiente 3D define protocolos de entrada salida para los principales formatos de vídeo 3D preparando el camino para los juegos en 3D y las aplicaciones de cine 3D en casa Tipo de contenido señalización en tiempo real de los tipos de contenido entre la pantalla y los dispositivos de origen lo que permite que un televisor optimice ajustes ...

Page 14: ...ualización máximas Hz Max Digital DisplayPort 1 4 único 7680 x 4320 8k a 30 Hz mDP tipo C a DP Max Digital DisplayPort 1 4 doble 7680 x 4320 8k a 60 Hz mDP tipo C a DP Número de pantallas compatibles Hasta 4 pantallas NVIDIA Quadro RTX3000 Tabla 3 NVIDIA Quadro RTX3000 Función Valores Memoria gráfica 6 GB Núcleos 2304 Ancho de banda de la memoria 336 Gbps Tipo de memoria GDDR6 Interfaz de memoria ...

Page 15: ... Depth Up to 10 bit color Operating Systems Graphics Video API Support DirectX 12 0 OpenGL 4 6 DisplayPort 1 4 DirectX 12 1 Supported Resolutions and Max Refresh Rates Hz Max Digital Single DisplayPort 1 4 7680 x 4320 8k 30 Hz mDP Type c to DP Max Digital Dual DisplayPort 1 4 7680 x 4320 8k 60 Hz mDP Type c to DP Numbers of Display Support Up to 4 displays NVIDIA Quadro RTX5000 Table 5 NVIDIA Quad...

Page 16: ... API Support DirectX 12 0 OpenGL 4 6 DisplayPort 1 4 DirectX 12 1 Supported Resolutions and Max Refresh Rates Hz Max Digital Single DisplayPort 1 4 7680 x 4320 8k 30 Hz mDP Type C to DP Max Digital Dual DisplayPort 1 4 7680 x 4320 8k 60 Hz mDP Type C to DP Numbers of Display Support Up to 4 displays 16 Tecnología y componentes ...

Page 17: ...mponente existente antes de realizar el procedimiento de instalación Sobre esta tarea En la ilustración se indica la ubicación de la cubierta de la base y se proporciona una representación visual del procedimiento de instalación Las imágenes se cargarán en el siguiente ciclo de revisión Pasos Deslice la tarjeta SD en la ranura de la computadora hasta que encaje en su lugar Siguientes pasos 1 Siga ...

Page 18: ...he base cover Installing SSD door Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location of the SSD door and provides a visual representation of the installation procedure 18 Desmontaje y reensamblaje ...

Page 19: ...ado sólido M 2 secundaria Removing the secondary M 2 Solid state drive Prerequisites NOTE For computers shipped with M 2 2280 or 2230 SSD installed in slot 6 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the SSD door About this task The figure indicates the location of the secondary M 2 SSD and provides a visual representation of the removal procedure ...

Page 20: ...r M 2 2230 SSD a Remove the M 2 2230 SSD with its holder from the SSD carrier b Remove the M2x2 screw to secure the M 2 2230 SSD to its holder c Remove the SSD from the holder Installing the secondary M 2 SSD module Prerequisites NOTE For computers shipped with M 2 2280 or 2230 SSD installed in slot 6 If you are replacing a component remove the existing component before performing the installation...

Page 21: ...l plate to the M 2 SSD 5 Replace the SSD module in its slot on the computer 6 Replace the M2x3 screw to secure the SSD module in place Next steps 1 Install the SSD door 2 Install the SD card 3 Follow the procedure in after working inside your computer Cubierta de la base Removing the base cover Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card About t...

Page 22: ...22 Desmontaje y reensamblaje ...

Page 23: ...en the base cover starting from bottom edge of the cover NOTE For models shipped without SmartCard reader pry open the base cover from the smart card reader slot Use your fingers to pry open the base cover as the use of plastic scribe or any other sharp objects may damage the base cover Desmontaje y reensamblaje 23 ...

Page 24: ...r on the system board Installing the base cover Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location of the base cover and provides a visual representation of the installation procedure 24 Desmontaje y reensamblaje ...

Page 25: ...Desmontaje y reensamblaje 25 ...

Page 26: ...de la batería No doble la batería No utilice herramientas de ningún tipo para hacer palanca sobre o contra la batería Verifique que no se pierda ningún tornillo durante la reparación de este producto para evitar daños o perforaciones accidentales en la batería y otros componentes del sistema Si una batería se atasca en la computadora como resultado de la inflamación no intente soltarla ya que perf...

Page 27: ...the battery 3 Remove the battery away from the computer Installing the battery Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location of the battery and provides a visual representation of the installation procedure Desmontaje y reensamblaje 27 ...

Page 28: ...r working inside your computer Unidad de estado sólido Removing the primary M 2 Solid state drive Prerequisites NOTE For computers shipped with M 2 2280 or 2230 SSD installed in slot 3 slot 4 and or slot 5 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task The figure indicates the location of the primary M 2 SSD and provides a...

Page 29: ...t secures the M 2 SSD to the computer b Remove the M 2 SSD 4 For M 2 2230 SSD a Remove the M2x3 screw that secures the SSD module b Remove the SSD module from the computer c Remove the M2x2 screw that secures the SSD to SSD holder d Remove the SSD from the holder 5 Repeat the above steps to remove the other SSD modules in the computer Desmontaje y reensamblaje 29 ...

Page 30: ...remove the existing component before performing the installation procedure About this task The figure indicates the location of the primary M 2 SSD and provides a visual representation of the installation procedure Steps 1 For M 2 2280 SSD a Place the M 2 SSD onto its slot on the computer b Replace the M2x3 screw to secure the M 2 SSD to the computer 30 Desmontaje y reensamblaje ...

Page 31: ...mputer Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in after working inside your computer Módulo de memoria secundario Removing the secondary memory module Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task The figure indicates the location of the secondary memory module and pr...

Page 32: ...ory module firmly into the slot and press the memory module until it clicks into place NOTE If you do not hear the click remove the memory module and reinstall it Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in after working inside your computer la tarjeta SIM Removing the SIM card Prerequisites 1 Follow the procedure in before working inside your computer 2 Rem...

Page 33: ...pening 2 Filp the right edge of the SIM card cover to open it 3 Remove the SIM card from the SIM card slot Installing the SIM card Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location of the SIM card and provides a visual representation of the installation procedure Desmontaje y r...

Page 34: ... Install the SD card 3 Follow the procedure in after working inside your computer Tarjeta WLAN Removing the WLAN card Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task The figure indicates the location of the WLAN card and provides a visual representation of the removal procedure 34 Desmontaje y reensamblaje ...

Page 35: ...emove the existing component before performing the installation procedure About this task The figure indicates the location of the WLAN card and provides a visual representation of the installation procedure Steps 1 Insert the WLAN card to the connector on the system board 2 Connect the antenna cables to the WLAN card 3 Align and place the WLAN card bracket above the WLAN card to secure the antenn...

Page 36: ...ures the WWAN card bracket to the system board 2 Lift the WWAN card bracket from the WWAN card 3 Disconnect the antenna cables from the connector on the WWAN card 4 Slide and remove the WWAN card from its slot on the system board Installing the WWAN card Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The fig...

Page 37: ...ntramado del teclado Removing the keyboard lattice Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task The figure indicates the location of the keyboard lattice and provides a visual representation of the removal procedure Steps 1 Using a plastic scribe pry the top edge of the keyboard lattice starting from the re...

Page 38: ... Steps 1 Align the keyboard lattice to its position on the keyboard 2 Press the edges on the keyboard lattice until it clicks into place Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in after working inside your computer Teclado Removing the keyboard Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base...

Page 39: ...rd to the palmrest 4 Pry the bottom edge of the keyboard and then work along the left and the right sides of the keyboard 5 Carefully unroute the keyboard backlight cable and the keyboard cable through the palmrest 6 Remove the keyboard from the system Installing the keyboard Prerequisites If you are replacing a component remove the existing component before performing the installation procedure A...

Page 40: ...em at 90 angle to access the keyboard and the keyboard backlight cables 5 Connect the keyboard backlight cable and the keyboard cable to the connectors on the system board NOTE Ensure that you fold the keyboard data cable in perfect alignment Next steps 1 Install the keyboard lattice 2 Install the battery 3 Install the base cover 4 Install the SD card 5 Follow the procedure in after working inside...

Page 41: ... the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the keyboard lattice 6 Remove the keyboard About this task The figure indicates the location of the primary memory module and provides a visual representation of the removal procedure Steps 1 Remove the M2x3 screw that secures the memory shield in place Desmontaje y reensamblaje 41 ...

Page 42: ... component remove the existing component before performing the installation procedure About this task The figure indicates the location of the primary memory module and provides a visual representation of the installation procedure Steps 1 Align the notch on the memory module with the tab on the memory module slot 2 Slide the memory module firmly into the slot at an angle and press the memory modu...

Page 43: ...tes 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery About this task The figure indicates the location of the heat sink assembly and provides a visual representation of the removal procedure Steps 1 Peel the power adapter cable from the heat sink assembly 2 Disconnect the two fan cables from the connectors on the system...

Page 44: ...Align and insert the heat sink assembly into its slot on the computer 2 Tighten the eight captive screws to secure the heat sink assembly to the system board NOTE Tighten the captive screws in the order stamped onto the heat sink next to the screws 1 2 3 4 5 6 7 8 3 Connect the two fan cables to the connector on the system board 4 Adhere the power adapter cable on the heat sink assembly Next steps...

Page 45: ... Steps 1 Remove the M2x3 screw that secures power adapter cable bracket 2 Remove the power adapter cable bracket from the computer 3 Lift the power adapter port from its slot on the palmrest 4 Unroute and remove the power adapter cable from the computer Installing the power adapter port Prerequisites If you are replacing a component remove the existing component before performing the installation ...

Page 46: ... cover 4 Install the SD card 5 Follow the procedure in after working inside your computer Placa del botón de encendido Removing the power button board Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the heat sink assembly About this task The figure indicates the location of the power button board...

Page 47: ...s slot on the computer 3 Replace the two M2x3 screws to secure the power button board 4 Adhere the power button board cable to the palmrest 5 Connect the power button board cable to the connector on the system board Next steps 1 Install the heat sink assembly 2 Install the battery 3 Install the base cover 4 Install the SD card 5 Follow the procedure in after working inside your computer Placa del ...

Page 48: ...ard cable from the palmrest 6 Remove the two M2x3 screws that secure the power button board to the computer 7 Remove the power button board with the power button board cable from the computer 8 Disconnect the power button board cable from the power button board Installing the power button assembly with fingerprint reader Prerequisites If you are replacing a component remove the existing component ...

Page 49: ...the power button daughter board 8 Replace the M2 5x2 5 screw to secure the power button assembly with fingerprint reader cable bracket in place Next steps 1 Install the heat sink assembly 2 Install the battery 3 Install the base cover 4 Install the SD card 5 Follow the procedure in after working inside your computer Marco interno Removing the inner frame Prerequisites 1 Follow the procedure in bef...

Page 50: ...sis 4 Remove the inner frame from the computer while carefully unthreading the keyboard cable and keyboard backlight cable through the opening on the inner frame Installing the inner frame Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location of the inner frame and provides a visua...

Page 51: ...2 Install the WWAN card 3 Install the primary M 2 SSD 4 Install the battery 5 Install the base cover 6 Install the SD card 7 Follow the procedure in after working inside your computer Compartimento para tarjetas inteligentes Removing the smart card reader Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 ...

Page 52: ... smart card reader cable from the touchpad 4 Remove the two M2x2 5 screws that secure the smart card reader to the computer 5 Remove the smart card reader from the computer Installing the smart card reader Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location of the smart card read...

Page 53: ...nstall the WLAN card 2 Install the WWAN card 3 Install the primary M 2 SSD 4 Install the inner frame 5 Install the battery 6 Install the base cover 7 Install the SD card 8 Follow the procedure in after working inside your computer Botón de la almohadilla de contacto Removing the Touchpad buttons Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remo...

Page 54: ...nect the touchpad buttons cable from the connector on the touchpad 3 Remove the two M2x2 5 screws that secure the touchpad buttons to the palmrest 4 Remove the touchpad buttons from the palmrest Installing the Touchpad buttons Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location o...

Page 55: ...ouchpad Next steps 1 Install the inner frame 2 Install the WLAN card 3 Install the WWAN card 4 Install the primary M 2 SSD 5 Install the battery 6 Install the base cover 7 Install the SD card 8 Follow the procedure in after working inside your computer Lector de tarjeta SD Removing SD card reader Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Rem...

Page 56: ...ottom side of the computer 3 Remove the M2 5x2 5 screw that secures the SD card reader in place 4 Slide and remove the SD card reader with its cable out of the computer Installing SD card reader Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location of the SD card reader and provide...

Page 57: ...Install the primary M 2 SSD 5 Install the inner frame 6 Install the battery 7 Install the base cover 8 Install the SD card 9 Follow the procedure in after working inside your computer Botón de encendido Removing the power button Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the heat sink assemb...

Page 58: ...e computer Installing the power button Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the location of the power button and provides a visual representation of the installation procedure 58 Desmontaje y reensamblaje ...

Page 59: ...puter Ensamblaje del botón de encendido con lector de huellas digitales Removing the power button assembly with fingerprint reader Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the heat sink assembly 6 Remove the power button board assembly with fingerprint reader About this task The figure ind...

Page 60: ...this task The figure indicates the location of the power button and provides a visual representation of the installation procedure Steps 1 Place the power button assembly with fingerprint reader into its slot on the computer 2 Replace the two M2x3 screws to secure the power button assembly with fingerprint reader in place Next steps 1 Install the power button board assembly with fingerprint reader...

Page 61: ...ide the end of the connector head to unlock the GPU power cable connector from the GPU card 2 Slightly slide the GPU power cable connector outwards to disconnect the GPU power cable from the GPU card 3 Repeat the above steps to disconnect the GPU power cable from the system board 4 Peel the GPU power cable from the computer Installing the GPU power cable Prerequisites If you are replacing a compon...

Page 62: ... the keyboard lattice 3 Install the battery 4 Install the base cover 5 Install the SD card 6 Follow the procedure in after working inside your computer Placa base Removing the system board Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the SSD door 4 Remove the secondary M 2 SSD 5 Remove the base cover 6 Remove the battery 7 Remove the pri...

Page 63: ...heat sink assembly 16 Remove the inner frame About this task The figure indicates the location of the system board and provides a visual representation of the removal procedure Images to be uploaded in the next review cycle NOTE For discrete models shipped with GPU card Desmontaje y reensamblaje 63 ...

Page 64: ...ra power adapter cable touchpad cable USH daughter board cable for models shipped with a USH daughter board and power button board cable from the system board 5 Remove the M2x3 screw that secures the Darwin cable bracket in place 6 Remove the Darwin cable bracket 7 Disconnect the Darwin cables from the connectors on the system board 8 Remove the six M2x3 screws that secure the three beam connector...

Page 65: ...ystem board 14 Remove the four M2x5 screws that secure the system board to the computer 15 Pry the coin cell battery located under the system board from the palmrest while lifting the system board 16 Remove the system board from the computer Installing the system board Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About th...

Page 66: ...66 Desmontaje y reensamblaje ...

Page 67: ...e connector 8 Replace the M2x3 screw to secure the Darwin cable bracket to the system board 9 Connect the beam connectors on the system board NOTE For UMA models replace the two M2x3 screws to secure the single beam connector in place on the bottom side of the system For discrete models shipped with a 128 MB vram GPU card replace the four M2x3 screws to secure the two beam connector in place on th...

Page 68: ...e la base 6 Quite la batería 7 Quite la SSD M 2 principal 8 Quite la tarjeta SIM 9 Quite la memoria secundaria 10 Quite la tarjeta WWAN 11 Extraiga la tarjeta WLAN 12 Quite el entramado del teclado 13 Extraiga el teclado 14 Quite el cable de alimentación de la GPU 15 Quite la memoria principal 16 Extraiga el ensamblaje del disipador de calor 17 Quite la trama interna 18 Quite la tarjeta madre Sobr...

Page 69: ...le el cable de alimentación de la GPU 6 Instale el teclado 7 Instale el entramado del teclado 8 Instale la tarjeta WLAN 9 Instale la tarjeta WWAN 10 Instale la memoria secundaria 11 Instale la tarjeta SIM 12 Instale la SSD M 2 principal 13 Instale la batería 14 Instale la cubierta de la base 15 Instale la SSD M 2 secundaria 16 Instale la puerta de SSD 17 Instale la tarjeta SD 18 Siga el procedimie...

Page 70: ...ext review cycle Steps 1 Peel the pieces of adhesive tape that secures the speaker cable to the palmrest 2 Pry the speaker module from its slot on the top edge of the palmrest 3 Remove the speaker module from the computer Installing the speaker Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indica...

Page 71: ...e inner frame 5 Install the heat sink assembly 6 Install the primary memory 7 Install the keyboard 8 Install the keyboard lattice 9 Install the WLAN card 10 Install the WWAN card 11 Install the secondary memory 12 Install the SIM card 13 Install the primary M 2 SSD 14 Install the battery 15 Install the base cover 16 Install the secondary M 2 SSD 17 Install the SSD door 18 Install the SD card 19 Fo...

Page 72: ...WAN card 11 Remove the WLAN card 12 Remove the keyboard lattice 13 Remove the keyboard 14 Remove the primary memory 15 Remove the heat sink assembly 16 Remove the inner frame 17 Remove the GPU power cable 18 Remove the GPU card 19 Remove the system board About this task The figure indicates the location of the speaker and provides a visual representation of the removal procedure Images to be uploa...

Page 73: ...almrest NOTE Ensure that the middle cap is secured in place by the two pegs on the palmrest 2 Replace the four M2x3 screws to secure the middle cap in place Next steps 1 Install the system board 2 Install the GPU card 3 Install the GPU power cable 4 Install the inner frame 5 Install the heat sink assembly 6 Install the primary memory 7 Install the keyboard 8 Install the keyboard lattice 9 Install ...

Page 74: ...SD card 3 Remove the SSD door 4 Remove the secondary M 2 SSD 5 Remove the base cover 6 Remove the battery 7 Remove the primary M 2 SSD 8 Remove the SIM card 9 Remove the secondary memory 10 Remove the WWAN card 11 Remove the WLAN card 12 Remove the keyboard lattice 13 Remove the keyboard 14 Remove the primary memory 15 Remove the heat sink assembly About this task The figure indicates the location...

Page 75: ...Desmontaje y reensamblaje 75 ...

Page 76: ...ures the Darwin bracket 5 Peel and remove the WWAN cables and Darwin cables from the palmrest 6 Remove the eight M2 5x2 5 screws that secures the hinges to the palmrest 7 Remove the display assembly from the palmrest Installing the display assembly Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure in...

Page 77: ...Desmontaje y reensamblaje 77 ...

Page 78: ...cure the display bracket to the palmrest 4 Connect the display cable to the connector on the system board 5 Replace the M2x5 screw to secure the Darwin bracket 6 Adhere the WWAN cables and Darwin cables to the palmrest Next steps 1 Install the heat sink assembly 2 Install the primary memory 3 Install the keyboard 4 Install the keyboard lattice 5 Install the WLAN card 6 Install the WWAN card 7 Inst...

Page 79: ... keyboard lattice 13 Remove the keyboard 14 Remove the primary memory 15 Remove the power adapter port 16 Remove the power button board 17 Remove the smart card reader 18 Remove the touchpad buttons 19 Remove the SD card reader 20 Remove the power button or power button assembly with fingerprint reader 21 Remove the heat sink assembly 22 Remove the inner frame 23 Remove the GPU power cable 24 Remo...

Page 80: ...existing component before performing the installation procedure About this task The figure indicates the palmrest and before performing the pre installation parts procedures for any palmrest installation procedure Next steps 1 Install the display assembly 80 Desmontaje y reensamblaje ...

Page 81: ... battery 24 Install the base cover 25 Install the secondary M 2 SSD 26 Install the SSD door 27 Install the SD card 28 Follow the procedure in after working inside your computer Embellecedor de la pantalla Removing the display bezel non touch Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the SSD door 4 Remove the secondary M 2 SSD 5 Remove...

Page 82: ...around the sides and top edge of the display bezel NOTE While prying the display bezel make sure to pry along the outside edge of the display bezel using your hands using a screw driver or other sharp objects may damage the display cover 3 Remove the display bezel from the display assembly Installing the display bezel non touch Prerequisites If you are replacing a component remove the existing com...

Page 83: ...ll the GPU card 6 Install the GPU power cable 7 Install the inner frame 8 Install the heat sink assembly 9 Install the primary memory 10 Install the keyboard 11 Install the keyboard lattice 12 Install the WLAN card 13 Install the WWAN card 14 Install the secondary memory 15 Install the SIM card 16 Install the primary M 2 SSD 17 Install the battery 18 Install the base cover 19 Install the secondary...

Page 84: ...ry 10 Remove the WWAN card 11 Remove the WLAN card 12 Remove the keyboard lattice 13 Remove the keyboard 14 Remove the primary memory 15 Remove the heat sink assembly 16 Remove the inner frame 17 Remove the GPU power cable 18 Remove the GPU card 19 Remove the system board 20 Remove the display assembly 21 Remove the speaker 22 Remove the middle cap 23 Remove the display assembly 24 Remove the disp...

Page 85: ... the adhesive tapes that secures the display cable 5 Peel the adhesive rubber strip covering the display cable 6 Unlock the display cable connector and then disconnect the display cable from the back of the display panel 7 Remove the display panel form the display assembly 8 Remove the display panel NOTE The support brackets attached to the display panel are defined as a single service assembly pa...

Page 86: ... a visual representation of the installation procedure Steps 1 Connect the display cable to the connector on the back of the display panel and lock the display cable connector 2 Adhere the adhesive rubber strip to cover the display cable 3 Adhere the transparent tape and conductive tape above the rubber strip to cover the display cable 4 Align the display panel with the tabs on the display assembl...

Page 87: ...stall the base cover 21 Install the secondary M 2 SSD 22 Install the SSD door 23 Install the SD card 24 Follow the procedure in after working inside your computer Bisagras de la pantalla Removing the display hinge Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the SSD door 4 Remove the secondary M 2 SSD 5 Remove the base cover 6 Remove the...

Page 88: ... Steps 1 Remove the eight M2 5x2 5 screws that secures the display hinges to the display assembly 2 Remove the display hinges Installing the display hinge non touch Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task The figure indicates the display hinge and provides a visual representation of the installation p...

Page 89: ...Install the GPU power cable 8 Install the inner frame 9 Install the heat sink assembly 10 Install the primary memory 11 Install the keyboard 12 Install the keyboard lattice 13 Install the WLAN card 14 Install the WWAN card 15 Install the secondary memory 16 Install the SIM card 17 Install the primary M 2 SSD 18 Install the battery 19 Install the base cover 20 Install the secondary M 2 SSD 21 Insta...

Page 90: ... the WLAN card 12 Remove the keyboard lattice 13 Remove the keyboard 14 Remove the primary memory 15 Remove the heat sink assembly 16 Remove the inner frame 17 Remove the GPU power cable 18 Remove the GPU card 19 Remove the system board 20 Remove the display assembly 21 Remove the speaker 22 Remove the display bezel 23 Remove the display panel About this task The figure indicates the location of t...

Page 91: ...a and provides a visual representation of the installation procedure Steps 1 Place the camera module in its slot on the display back cover 2 Place the camera shutter cap on the top edge of the camera shutter 3 Connect the display cable to the camera module 4 Adhere the adhesive tape to cover the camera module Next steps 1 Install the display panel 2 Install the display bezel 3 Install the speaker ...

Page 92: ...WLAN 12 Quite el entramado del teclado 13 Extraiga el teclado 14 Quite la memoria principal 15 Extraiga el ensamblaje del disipador de calor 16 Quite la trama interna 17 Quite el cable de alimentación de la GPU 18 Quite la tarjeta de la GPU 19 Quite la tarjeta madre 20 Extraiga el ensamblaje de la pantalla 21 Extraiga el altavoz 22 Extraiga el embellecedor de la pantalla 23 Extraiga el panel de vi...

Page 93: ...tema 6 Instale la tarjeta de la GPU 7 Instale el cable de alimentación de la GPU 8 Instale la trama interna 9 Instale el ensamblaje del disipador de calor 10 Instale la memoria principal 11 Instale el teclado 12 Instale el entramado del teclado 13 Instale la tarjeta WLAN 14 Instale la tarjeta WWAN 15 Instale la memoria secundaria 16 Instale la tarjeta SIM 17 Instale la SSD M 2 principal 18 Instale...

Page 94: ...mbly 21 Remove the speaker 22 Remove the display bezel 23 Remove the display panel 24 Remove the P sensor board About this task The figure indicates the location of the display cable and provides a visual representation of the removal procedure Images to be uploaded in the next review cycle Steps 1 Peel the adhesive tape covering the camera module 2 Disconnect the display cable from the camera mod...

Page 95: ...es a visual representation of the installation procedure Steps 1 Route and adhere the display cable on the display back cover 2 Connect the display cable to the connector on the camera module 3 Adhere the adhesive tape to cover the camera module Next steps 1 Install the P sensor board 2 Install the display panel 3 Install the display bezel 4 Install the speaker 5 Install the display assembly 6 Ins...

Page 96: ...d 3 Remove the SSD door 4 Remove the secondary M 2 SSD 5 Remove the base cover 6 Remove the battery 7 Remove the primary M 2 SSD 8 Remove the SIM card 9 Remove the secondary memory 10 Remove the WWAN card 11 Remove the WLAN card 12 Remove the keyboard lattice 13 Remove the keyboard 14 Remove the primary memory 15 Remove the heat sink assembly 16 Remove the inner frame 17 Remove the GPU power cable...

Page 97: ... card 11 Install the GPU power cable 12 Install the inner frame 13 Install the heat sink assembly 14 Install the primary memory 15 Install the keyboard 16 Install the keyboard lattice 17 Install the WLAN card 18 Install the WWAN card 19 Install the secondary memory 20 Install the SIM card 21 Install the primary M 2 SSD 22 Install the battery 23 Install the base cover 24 Install the secondary M 2 S...

Page 98: ...ebas para dispositivos específicos requieren la intervención del usuario Asegúrese siempre de estar en la terminal de la computadora cuando las pruebas de diagnóstico se ejecuten Para obtener más información consulte Resolver problemas de hardware con diagnósticos incorporados y en línea códigos de error de Psa ePSA o SupportAssist ePSA Ejecución de la comprobación de rendimiento del sistema previ...

Page 99: ...e Prueba automática incorporada del riel de alimentación del panel de visualización L BIST Sobre esta tarea Siguientes pasos L BIST prueba del riel de alimentación de la pantalla LCD es una mejora de los diagnósticos de códigos de error LED únicos y se inicia automáticamente durante la POST L BIST aísla el LCD si recibe alimentación de la tarjeta madre del sistema L BIST verifica si la tarjeta mad...

Page 100: ...conectado y la batería tiene una carga superior al 5 Ámbar El equipo funciona con la batería y la batería tiene una carga inferior al 5 Apagado El adaptador de alimentación está conectado y la batería está completamente cargada La computadora funciona con la batería y la batería tiene una carga superior al 5 por ciento La computadora se encuentra en estado de suspensión hibernación o está apagada ...

Page 101: ...IOS Si el problema persiste reemplace la tarjeta madre 2 7 Falla de la pantalla LCD mensaje de SBIOS Realice un flash en la última versión del BIOS Si el problema persiste reemplace el módulo de LCD 2 8 Falla de la pantalla LCD falla en la detección de EC del riel de alimentación Reemplace la tarjeta madre del sistema 3 1 Error de la batería CMOS Restablezca la conexión de la batería de CMOS Si el...

Page 102: ...iguiente procedimiento ofrece las instrucciones sobre cómo realizar un ciclo de apagado y encendido de wifi NOTA Algunos proveedores de servicios de Internet ISP proporcionan un dispositivo combinado de módem enrutador Pasos 1 Apague el equipo 2 Apague el módem 3 Apague el enrutador inalámbrico 4 Espere 30 segundos 5 Encienda el enrutador inalámbrico 6 Encienda el módem 7 Encienda la computadora 1...

Page 103: ... y por teléfono La disponibilidad varía según el país y el producto y es posible que algunos de los servicios no estén disponibles en su área Si desea ponerse en contacto con Dell para tratar cuestiones relacionadas con las ventas la asistencia técnica o el servicio de atención al cliente Pasos 1 Vaya a Dell com support 2 Seleccione la categoría de soporte 3 Seleccione su país o región en la lista...

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Dell EMC Precision 7750, Service Manual

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