Benq Ht1075 Projector Circuit Board Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          15 - 20 minutes

Sections

Lamp
4 steps
Circuit Board
8 steps

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Introduction

Note that the BenQ HT1075 Projector Lamp Replacement is a prerequisite since damage to the lamp is hazardous to both the projector and user.

What you need

Step 1

              Lamp

Loosen the 2.5 mm Phillips #1 screw that holds the top assembly in place using a Philips #1 (PH1) screwdriver. This will enable you to lift and slide off the top cover.
Fully remove the top cover in order to get to the lamp housing.

Loosen the 2.5 mm Phillips #1 screw that holds the top assembly in place using a Philips #1 (PH1) screwdriver. This will enable you to lift and slide off the top cover.

Fully remove the top cover in order to get to the lamp housing.

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Step 2

Carefully peel off the adhesive film covering the lamp housing.

Carefully peel off the adhesive film covering the lamp housing.

Step 3

Using a Phillips #1 (PH1) screwdriver, loosen and remove the single 2.5 mm Phillips #1 screw that secures the lamp housing to the projector.

Using a Phillips #1 (PH1) screwdriver, loosen and remove the single 2.5 mm Phillips #1 screw that secures the lamp housing to the projector.

Step 4

Remove the lamp from the projector by pulling on the lamp handle.
Apply more force on the side opposite of the newly removed screw as you pull the lamp out.

Remove the lamp from the projector by pulling on the lamp handle.

Apply more force on the side opposite of the newly removed screw as you pull the lamp out.

Step 5

              Circuit Board

Turn the projector over and remove the five 9.5 mm Phillips #1 screws that hold the back cover with a Phillips #1 (PH1) screwdriver.

Turn the projector over and remove the five 9.5 mm Phillips #1 screws that hold the back cover with a Phillips #1 (PH1) screwdriver.

Step 6

              Remove the 6th screw holding the top cover

Flip the projector and remove the 6th and last crew.

Flip the projector and remove the 6th and last crew.

Step 7

Using an opening tool, remove the top cover by first loosening its top cover.

Using an opening tool, remove the top cover by first loosening its top cover.

Step 8

Unplug the wire that connects the front cover to the circuit board.
Now use the opening tool to pry the front cover from the platform.
Gently pull the top cover from the rest of the frame.

Unplug the wire that connects the front cover to the circuit board.

Now use the opening tool to pry the front cover from the platform.

Gently pull the top cover from the rest of the frame.

Step 9

To prevent potential for electrical damage, disconnect any wires connected to the circuit board.
Using the opening tool, loosen the sides of the platform. Then gently pull them off from the projector components.

To prevent potential for electrical damage, disconnect any wires connected to the circuit board.

Using the opening tool, loosen the sides of the platform. Then gently pull them off from the projector components.

Step 10

Remove these four 8.5 mm Phillips #1 screws using a Phillips #1 (PH1) screwdriver.
Afterwards, use a 5mm nut driver to remove the four remaining screws.
Use the opening tool to loosen the back cover then pull it off.

Remove these four 8.5 mm Phillips #1 screws using a Phillips #1 (PH1) screwdriver.

Afterwards, use a 5mm nut driver to remove the four remaining screws.

Use the opening tool to loosen the back cover then pull it off.

Step 11

With a Phillips #1 (PH1) screwdriver, remove the four 6.3 mm Phillips screws that hold the metal casing on top of the circuit board.
Remove the metal casing.

With a Phillips #1 (PH1) screwdriver, remove the four 6.3 mm Phillips screws that hold the metal casing on top of the circuit board.

Remove the metal casing.

Step 12

Using the Phillips #1 (PH1) screwdriver, remove the three 6.3 mm Phillips #1 screws holding down the circuit board.
Carefully pull the circuit board from the frame, adding force to the area where the pushbuttons are located.

Using the Phillips #1 (PH1) screwdriver, remove the three 6.3 mm Phillips #1 screws holding down the circuit board.

Carefully pull the circuit board from the frame, adding force to the area where the pushbuttons are located.

To reassemble your device, follow these instructions in reverse order.

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                    Gabriela Remulla

Member since: 09/26/2017

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                       Cal Poly, Team S6-G1, Banghart Fall 2017                        

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                                            5 Guides authored

sandarukbio92 - Jan 23, 2018

miss i need to get some information regarding this projector repair. if you can email me, sandarukbio@gmail.com

Quinn Griffith - Oct 6, 2018

very good instructions and pictures thank you for your detailed work

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Introduction#

What you need#

Team#

Action Shots

Introduction

What you need

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