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Nacho Family Service Manual UPDATES 07-February-2005: Light Tunnel (315-0053-xx) added as a replaceable part in service manual. 26-October-2004: Colo

Nacho Family Service Manual 10 LED repeats 5 flash sequence Check the thermal switch on the lamp housing. Measure the resistance at the switch (p

Nacho Family Service Manual 11 LED is solid red Replace the power supply.(page 52)LED solid red.Fans may or may not be running.Is thecolor wheels

Nacho Family Service Manual 12 Image Problems The image is not correct. The projector starts and runs normally. The menus are accessible. The lam

Nacho Family Service Manual 13 Keypad Problems LCD Problems

Nacho Family Service Manual 14 Remote Problems 44) 44)

Nacho Family Service Manual 15 Check Controller ECA and I/O Voltages 1 Remove the top case. 2 Plug the projector into a power source. You can m

Nacho Family Service Manual 16 5 Check the voltages on the I/O ECA.

Nacho Family Service Manual 17 Adjust Image Banding Image banding can appear on the top, bottom, right or left sides of the projected image. Band

Nacho Family Service Manual 18 4 To adjust banding on the top or bottom of the image, use a T6 driver to turn the adjustment screw in the hole s

Nacho Family Service Manual 19 Check the Thermal Switch The thermal switch is designed to open when the temperature inside the projector gets too

Nacho Family Service Manual 2 Table of Contents Nacho Family Service Manual ...

Nacho Family Service Manual 20 Check fan operation Exhaust fans The two exhaust fans are not three wire fans. Thus, if either or both stops worki

Nacho Family Service Manual 21 Checking fan voltages Checking fan voltages allows you to determine whether the fan or the ECA to which it connect

Nacho Family Service Manual 22 Parts Removal and Replacement Removable Parts Hierarchy The flow chart below shows what parts must be removed to a

Nacho Family Service Manual 23 Exploded View

Nacho Family Service Manual 24 Lamp and Lamp Door The lamp door fits over the lamp cavity on the bottom of the projector. It includes a tab that

Nacho Family Service Manual 25 2 Release the locking tab on the top of the lamp power connector, then unplug the cable from its connector in the

Nacho Family Service Manual 26 Focus ring The focus ring snaps onto projection lens barrel. The focus ring includes a trim ring that snaps onto t

Nacho Family Service Manual 27 Assembly Notes ♦ If you removed the trim from the focus ring, make sure to align the parts correctly before snapp

Nacho Family Service Manual 28 Front bezel The front bezel snaps onto the front of the projector. It includes the brand name. The front IR window

Nacho Family Service Manual 29 4 If you are replacing the front bezel with a new one, remove the front IR window and install it on the new one.

Nacho Family Service Manual 3 Troubleshooting You use the Troubleshooting section to diagnose problems with the projector. In this section, you w

Nacho Family Service Manual 30 ♦ To install the other end of the bezel, slightly flex the bezel so that you can insert the two tabs into the ma

Nacho Family Service Manual 31 Top Enclosure The top enclosure covers the top half of the projector. Once you remove the top enclosure, you have

Nacho Family Service Manual 32 5 Lift the front of the top enclosure so that you can unplug the keypad cable from its ZIF connector on the contr

Nacho Family Service Manual 33 Assembly notes ♦ Connect the keypad cable to the controller first. ♦ Insert the five alignment tabs on the rear

Nacho Family Service Manual 34 Exhaust and Intake Bezels The intake bezel fits on the projection lens side of the projector. The exhaust bezel fi

Nacho Family Service Manual 35 Assembly Notes ♦ When you replace the exhaust bezel, note how the front and rear of the bezel interlock with the

Nacho Family Service Manual 36 ♦ The rear of the intake bezel also features a tab that fits over a boss in the bottom enclosure.

Nacho Family Service Manual 37 Exhaust Fan Assembly The exhaust fan assembly is comprised of 60mm and 80mm exhaust fans, the front and side IR as

Nacho Family Service Manual 38 5 Unplug the safety cable from its connector on the power supply. You access the connector through a hole in the

Nacho Family Service Manual 39 Assembly Notes ♦ When you install the exhaust fan assembly, make sure the front and rear of the fan bracket fits

Nacho Family Service Manual 4 Power and Start-up Problems The projector communicates its status via an LED located on the keypad. When this statu

Nacho Family Service Manual 40 Color Wheel Assembly The color wheel assembly includes the color wheel, the color wheel ECA and the color wheel br

Nacho Family Service Manual 41 2 Unplug the color wheel ribbon cable, the front blower cable from the controller ECA. Unplug the color wheel ECA

Nacho Family Service Manual 42 4 Lift the color wheel assembly out of the projector. Take care not to scratch the glass wheel as you lift. Asse

Nacho Family Service Manual 43 ♦ Start the M3x8 screw and cable clip, then insert the ribbon cable before tightening the screw. Torque the screw

Nacho Family Service Manual 44 Controller ECA and I/O ECA The controller ECA and the I/O ECA are fastened to the top of the metal chassis. The tw

Nacho Family Service Manual 45 Controller ECA 1 Unplug the color wheel cable, the color wheel sync cable and the lamp blower cable from their co

Nacho Family Service Manual 46 4 Lift the controller by the two corners shown below. As you remove the controller, the controller/power supply c

Nacho Family Service Manual 47 Assembly Notes ♦ Note the location of the power supply and DMD connectors before installing the controller ECA. F

Nacho Family Service Manual 48 I/O ECA 1 Unplug the I/O-controller cable from its ZIF connector on the I/O ECA. See step 2 above for details. 2

Nacho Family Service Manual 49 Power Supply and Chassis The power supply fastens to the metal chassis. The plastic power supply insulator fits be

Nacho Family Service Manual 5 Power Diagnostics, part 1 Plug the projector into a good power source with a known good power cord.YesReplace contr

Nacho Family Service Manual 50 4 Lift the chassis and power supply out of the bottom. 5 If you need to replace any of the assembly components,

Nacho Family Service Manual 51 8 To separate the power supply and chassis, pinch the locking tabs on the plastic standoff located in middle of t

Nacho Family Service Manual 52 Optical Engine The optical engine includes all components in the light path except the lamp. Once you remove the

Nacho Family Service Manual 53 2 Remove the three M3x10 Plastite screws that fasten the engine to the bottom case. 3 Lift the engine out of t

Nacho Family Service Manual 54 6 To remove the lamp blower, remove the two M3x30 Phillips screws with washers that fasten the blower to the engi

Nacho Family Service Manual 55 Bottom Enclosure The bottom enclosure encloses the bottom half of the projector. The bottom case includes the ele

Nacho Family Service Manual 56 2 Remove the curved metal air deflector from the old bottom enclosure and install it on the new one. The air defl

Nacho Family Service Manual 57 5 Adhere the old Serial Number label to the new certification label. 6 Install the parts you removed in the rev

Nacho Family Service Manual 58 Light Tunnel The light tunnel is comprised of four pieces of mirrored glass that are glued together to form a box

Nacho Family Service Manual 59 1 Remove the following parts: Front bezel (page 28) Top enclosure (page 31) Controller ECA (page 44) Color Wheel

Nacho Family Service Manual 6 Power Diagnostics, part 2 Press the Power button on the keypad.The power cord must be plugged in and the LED must b

Nacho Family Service Manual 60 3 Lift the light tunnel out of the projector. 4 To install the light tunnel, place it on the engine casting

Nacho Family Service Manual 61

Nacho Family Service Manual 62 5 Slide the clip over the light tunnel so that two of the tabs press against the top of the tunnel and two press

Nacho Family Service Manual 63 Parts Lists Illustrated Replaceable Parts List Below is a list of replaceable parts (FRUs). It includes the part n

Nacho Family Service Manual 64 Part Illustration Part name in service guide Part name in parts pricing list Part number I/O EMI shield Shiel

Nacho Family Service Manual 65 Part Illustration Part name in service guide Part name in parts pricing list Part number Intake bezel S/A be

Nacho Family Service Manual 66 Part Illustration Part name in service guide Part name in parts pricing list Part number Top enclosure (Includ

Nacho Family Service Manual 67 Illustrated User Replaceable Parts List Below is a list of replaceable parts (URPs). It includes the part name as

Nacho Family Service Manual 68 Labels Below is a list of labels available for this projector, as well as illustrations showing the label location

Nacho Family Service Manual 7 Power Diagnostics, Error Codes FlashingIs the LED steady or flashing?SteadyAn internal error occurred that the proj

Nacho Family Service Manual 8 LED flashes single red The lamp won't strike after five attempts. The status LED flashes a repeated red single

Nacho Family Service Manual 9 LED repeats 3 flash sequence The lamp was operating but shut down. Fans are running. The status LED flashes a repe