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Service Guide for the
X1
Table of Contents
Table of Contents .......................................................................................................... 2
Safety Precautions ........................................................................................................ 3
Important Precautions .................................................................................................. 3
Important Safety Instructions ...................................................................................... 4
Parts Replacement ........................................................................................................ 5
Removable Parts Hierarchy ..................................................................................................5
Remove and Replace the Ballast/Power Supply ECA ..........................................................6
Remove and Replace the Bottom EMI Shield.....................................................................10
Remove and Replace the Chassis......................................................................................12
Remove and Replace the Color Wheel Shield....................................................................17
Remove and Replace the Controller ECA...........................................................................19
Remove and Replace the Elevator .....................................................................................22
Remove and Replace the Optical Engine ...........................................................................24
Remove and Replace the Cooling Fans .............................................................................27
Remove and Replace the Focus and Zoom Rings .............................................................30
Remove and Replace the Front Bezel ................................................................................32
Remove and Replace the I/O ECA .....................................................................................35
Remove and Replace the Keypad ......................................................................................37
Remove and Replace Lamp Module...................................................................................42
Remove and Replace the Lamphouse................................................................................45
Remove and Replace the Leveling Foot .............................................................................48
Remove and Replace the Rear Bezel.................................................................................49
Remove and Replace the Rubber Feet...............................................................................51
Remove and Replace the Top Case ...................................................................................52
Remove and Replace the Speaker .....................................................................................54
Functional Tests.......................................................................................................... 56
Required equipment............................................................................................................56
Before beginning .................................................................................................................57
Perform the following tests..................................................................................................57
Troubleshooting .......................................................................................................... 60
Power and Start-up Problems .............................................................................................61
Image Problems ..................................................................................................................67
Keypad Problems................................................................................................................71
Remote Problems ...............................................................................................................72
Audio Problems...................................................................................................................73
Block Diagram.....................................................................................................................74
Prepare for Power Up with Top Case Removed .................................................................80
Check Controller Voltages ..................................................................................................81
Check the Color Wheel and Reseat the Cable ...................................................................84
Check the Thermal Switch ..................................................................................................86
Check fan operation ............................................................................................................87
Check Ballast/Power Supply Voltages and Signals ............................................................88
Check I/O ECA Voltages and Signals .................................................................................90
Parts Lists.................................................................................................................... 93
Parts Exploded View ...........................................................................................................93
FRUs by alphabetic listing...................................................................................................94
X1 Service Guide 2
SAFETY PRECAUTIONS
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE
PRESENT INSIDETHE ENCLOSURE. DO NOT OPEN THE CABINET. REFER
SERVICING TO QUALIRED PERSONNEL ONLY.
CAUTION: Laser beam is emitted when the laser button of the remote control is pressed. Do not
look from the front of the remote control. Do not face toward a person or to a mirror.
FCC Radio Frequency Interference Statement
Note: This equipment has been tested and found to comply with the limits for a Class A
The lightning flash with arrowhead digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
symbol, within an equilateral triangle, provide reasonable protection against harmful interference when the equipment is
is intended to alert the user to the operated in a commercial environment. This equipment generates, uses, and can
presence of uninsulated "dangerous radiates radio frequency energy and, if not installed and used in accordance with the
voltage" within the product's instruction manual, may cause harmful interference to radio communications.
enclosure that may be of sufficient Operation of this equipment in a residential area is likely to cause harmful
magnitude to constitute a risk of interference in which case the user will be required to correct the interference at his
electric shock to persons. own expense.
The exclamation point within an WARNING: Changes or modifications made to this equipment, not expressly approved by
equilateral triangle is intended to Toshiba, or parties authorized by Toshiba, could void the user's authority to operate
alert the user to the presence of the equipment.
important operating and
maintenance (servicing) instructions Notice: This Class A digital apparatus complies with Canadian ICES-003.
in the literature accompanying the Cet appareil num