Read Sharp LL-T181A (serv.man15) Service Manual online
CHAPTER 1. OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTIONS
[1] Features
·
46 cm [18.1 type] 1280-dots x RGB x 1024-line high-resolution
TFT color LCD panel
TFT color LCD panel
·
200 cd/m
2
high-luminance design
·
Connectable to analog RGB output (for CRT)
Multi display mode function that supports resolutions from 640-dot
x RGB x 400-line to up to 1280-dot x RGB x 1024-line
In modes lower than 1024 x 768 dots, it is possible to enlarge the
screen that offers smooth and excellent visibility.
VESA standard, PC9800 series, Power Macintosh compatible
x RGB x 400-line to up to 1280-dot x RGB x 1024-line
In modes lower than 1024 x 768 dots, it is possible to enlarge the
screen that offers smooth and excellent visibility.
VESA standard, PC9800 series, Power Macintosh compatible
·
Up to 16,770 thousand colors can be displayed.
·
Automatic screen adjustment, OSD lock, automatic gain control
functions
functions
·
The display timing and RGB gain can be more finely adjusted due
to the OSD guide function, in addition to the automatic adjustment
function.
to the OSD guide function, in addition to the automatic adjustment
function.
·
Power management function
·
Supports Plug&Play (VESA:DDC1, DDC2B standards)
·
Supports composite sync., sync-on-green in addition to H,V sepa-
rate sync.
rate sync.
·
Swivel mechanism
[2] Safe servicing and safe inspection,
<When servicing or inspecting,
observe the safety instructions.>
observe the safety instructions.>
1. Observe the cautions.
Locations which require a special caution carry safety instructions
using labels and stamps on the cabinet, chassis and components.
When servicing, observe the instructions on such labels and
stamps as well as those in the Instruction manual.
using labels and stamps on the cabinet, chassis and components.
When servicing, observe the instructions on such labels and
stamps as well as those in the Instruction manual.
2. Exercise care not to get an electrical shock
accident.
Some parts have a high voltage inside the unit. Use caution when
handling them while they are energized.
handling them while they are energized.
3. Use specified parts.
The component parts of this unit have safety characteristics such
as flame resistance and dielectric strength. Use replacement parts
which have the same characteristics as those of the components
parts used for this unit. In particular, component parts marked with
as flame resistance and dielectric strength. Use replacement parts
which have the same characteristics as those of the components
parts used for this unit. In particular, component parts marked with
!
in the circuit drawing parts list are important for maintaining the
safety of the product. Make sure to use specified replacement
parts.
parts.
4. Reinstall component parts in their original
locations and return wires which have been
rerouted for servicing purposes to their original
positions.
rerouted for servicing purposes to their original
positions.
Some component parts use insulating materials such as tubes or
tape for safety purposes, or are mounted, a bit floated, on the
printed wiring board.
When rerouting inside wiring or clamping the wires, use caution
not to bring the wires too close to heating or high-voltage parts.
tape for safety purposes, or are mounted, a bit floated, on the
printed wiring board.
When rerouting inside wiring or clamping the wires, use caution
not to bring the wires too close to heating or high-voltage parts.
Make sure to return inside wiring to their original locations.
5. Check for safety after servicing.
After finishing servicing, check whether the screws, parts, wires
which have been removed for servicing are reinstalled properly. In
addition, check to see if you have not deteriorated parts around
the part you serviced, and also check for insulation between each
of the attachment plug terminals and the external metal section.
which have been removed for servicing are reinstalled properly. In
addition, check to see if you have not deteriorated parts around
the part you serviced, and also check for insulation between each
of the attachment plug terminals and the external metal section.
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