DOWNLOAD Sharp PN-L802B (serv.man12) Service Manual ↓ Size: 6.57 MB | Pages: 58 in PDF or view online for FREE

5

E

Thank you for your purchase of a SHARP LCD product. To ensure safety and many years of trouble-free operation of your

product, please read the Safety Precautions carefully before using this product.

Electricity is used to perform many useful functions, but it can also cause personal injuries and property damage if improperly

handled. This product has been engineered and manufactured with the highest priority on safety. However, improper use can 

result in electric shock and/or fire. In order to prevent potential danger, please observe the following instructions when installing,

operating and cleaning the product. To ensure your safety and prolong the service life of your LCD product, please read the

following precautions carefully before using the product.

  1.  Read instructions — All operating instructions must be read and understood before the product is operated.
 2.   Keep this manual in a safe place — These safety and operating instructions must be kept in a safe place for future

reference.

 3.  Observe warnings — All warnings on the product and in the instructions must be observed closely.

 4.  Follow instructions — All operating instructions must be followed.

 5.   Cleaning — Unplug the power cord from the AC outlet before cleaning the product. Use a dry cloth to clean the product. Do

not use liquid cleaners or aerosol cleaners.

 6.   Attachments — Do not use attachments not recommended by the manufacturer. Use of inadequate attachments can result

in accidents.

 7.   Water and moisture — Do not use the product near water. Do not install the product in a place where water may splash onto

it. Be careful of equipment which drains water such as an air-conditioner.

 8.  Ventilation — The vents and other openings in the cabinet are designed for ventilation.

    Do not cover or block these vents and openings since insufficient ventilation can cause overheating and/or shorten the life

of the product. Do not place the product on a sofa, rug or other similar surface, since they can block ventilation openings.

Do not place the product in an enclosed place such as a bookcase or rack, unless proper ventilation is provided or the

manufacturer’s instructions are followed.

 9.   Power cord protection — The power cords must be routed properly to prevent people from stepping on them or objects from

resting on them.

10.   The screen used in this product is made of glass. Therefore, it can break when the product is dropped or applied with

impact. Be careful not to be injured by broken glass pieces in case the screen breaks.

11.  Overloading — Do not overload AC outlets or extension cords. Overloading can cause fire or electric shock.

12.   Entering of objects and liquids — Never insert an object into the product through vents or openings. High voltage flows in

the product, and inserting an object can cause electric shock and/or short internal parts.

   For the same reason, do not spill water or liquid on the product.

13.   Servicing — Do not attempt to service the product yourself. Removing covers can expose you to high voltage and other

dangerous conditions. Request a qualified service person to perform servicing.

14.   Repair — If any of the following conditions occurs, unplug the power cord from the AC outlet, and request a qualified service

person to perform repairs. 

a.  When the power cord or plug is damaged. 

b.  When a liquid was spilled on the product or when objects have fallen into the product. 

c.  When the product has been exposed to rain or water. 

d.  When the product does not operate properly as described in the operating instructions. 

  Do not touch the controls other than those described in the operating instructions. Improper adjustment of controls

not described in the instructions can cause damage, which often requires extensive adjustment work by a qualified

technician.

   e.  When the product has been dropped or damaged. 

   f.   When the product displays an abnormal condition. Any noticeable abnormality in the product indicates that the product

needs servicing.

15.   Replacement parts — In case the product needs replacement parts, make sure that the service person uses replacement

parts specified by the manufacturer, or those with the same characteristics and performance as the original parts. Use of

unauthorized parts can result in fire, electric shock and/or other danger.

16.   Safety checks — Upon completion of service or repair work, request the service technician to perform safety checks to

ensure that the product is in proper operating condition.

17.   Wall mounting — When mounting the product on a wall, be sure to install the product according to the method

recommended by the manufacturer.

18.   Heat sources — Keep the product away from heat sources such as radiators, heaters, stoves and other heat-generating

products (including amplifiers).

6

E

19.   Batteries — Incorrect use of batteries may cause the batteries to burst or ignite. A leaky battery may corrode the equipment,

dirty your hands or spoil your clothing. In order to avoid these problems, make sure to observe the precautions below:

   • Use the specified batteries only.

   • Install the batteries with due attention to the plus (+) and minus (-) sides of the batteries according to the instructions in the

compartment.

   • Do not mix old and new batteries.

   • Do not mix batteries of different types. Voltage specifications of batteries of the same shape may vary.

   • Replace an exhausted battery with a new one promptly.

   • If you will not use the remote control for a long time, remove the batteries.

   • If leaked battery fluid gets on your skin or clothing, rinse immediately and thoroughly. If it gets into your eye, bathe your

eye well rather than rubbing and seek medical treatment immediately. Leaked battery fluid that gets into your eye or your

clothing may cause a skin irritation or damage your eye.

20.   Usage of the monitor must not be accompanied by fatal risks or dangers that, could lead directly to death, personal injury,

severe physical damage or other loss, including nuclear reaction control in nuclear facility, medical life support system, and 

missile launch control in a weapon system.

21.   Do not stay in contact with the parts of the product that become hot for long periods of time. Doing so may result in  

low-temperature burns.

This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be 

required to take adequate counter measures.

To maintain compliance with EMC regulations, use shielded cables to connect to the following terminals: PC/AV DVI-D output

terminal, PC/AV DVI-D input terminal, PC/AV HDMI input terminal, PC D-SUB input terminal, PC RGB input terminals, and

RS-232C input/output terminals.

If a monitor is not positioned in a sufficiently stable location, it can be potentially hazardous due to falling. Many injuries,

particularly to children, can be avoided by taking simple precautions such as:

• Using fixing devices like wall mount brackets recommended by the manufacturer.

• Only using furniture that can safely support the monitor.

• Ensuring the monitor is not overhanging the edge of the supporting furniture.

• Not placing the monitor on tall furniture (for example, cupboards or bookcases) without anchoring both the furniture and the

monitor to a suitable support.

• Not standing the monitors on cloth or other materials placed between the monitor and supporting furniture.

• Educating children about the dangers of climbing on furniture to reach the monitor or its controls.

- Don’t allow children to climb on or play with the monitor.

- Don’t place the monitor on furniture that can easily be used as steps, such as a chest of drawers.

- Remember that children can become excited while watching a program, especially on a “larger than life” monitor. Care

should be taken to place or install the monitor where it cannot be pushed, pulled over, or knocked down.

- Care should be taken to route all cords and cables connected to the monitor so that they cannot be pulled or grabbed by

curious children.

7

E

- The TFT color LCD panel used in this monitor is made with

the application of high precision technology. However, there 

may be minute points on the screen where pixels never light 

or are permanently lit. Also, if the screen is viewed from 

an acute angle there may be uneven colors or brightness. 

Please note that these are not malfunctions but common 

phenomena of LCDs and will not affect the performance of

the monitor.

- Do not display a still picture for a long period, as this could

cause a residual image.

- Never rub or tap the monitor with hard objects.
- Please understand that SHARP CORPORATION bears no

responsibility for errors made during use by the customer or 

a third party, nor for any other malfunctions or damage to this 

product arising during use, except where indemnity liability is 

recognized under law.

- This monitor and its accessories may be upgraded without

advance notice.

- Do not use the monitor where there is a lot of dust, where

humidity is high, or where the monitor may come into contact 

with oil or steam, as this could lead to fire.

- Ensure that the monitor does not come into contact with

water or other fluids. Ensure that no objects such as paper

clips or pins enter the monitor as this could lead to fire or

electric shock.

- Do not place the monitor on top of unstable objects or in

unsafe places. Do not allow the monitor to receive strong

shocks or to strongly vibrate. Causing the monitor to fall or

topple over may damage it.

- Do not use the monitor near heating equipment or in places

where there is likelihood of high temperature, as this may 

lead to generation of excessive heat and outbreak of fire.

- Do not use the monitor in places where it may be exposed to

direct sunlight.

- The AC outlet shall be installed near the equipment and shall

be easily accessible.

- Do not touch the screen while the PC is starting up, since

it will be detected as a failure of the infrared transmitter/

receiver elements and will lead to a malfunction. When this

occurs, restart the PC.

- Do not operate the screen with a hard or pointed object such

as a fingernail, pen, or pencil.

- Two touch panels cannot be used when two displays are

connected to the computer. 

Only the touch panel on the display that is set as the primary 

monitor will be operable.

- If another USB device is connected to the computer to which

the touch panel is connected, do not operate the USB device

during touch panel input. Input may not take place correctly.

- If two touch panels are used in close proximity to each other,

use handwriting mode. The touch pens will interfere with 

each other and will not operate correctly.

- If the infrared transmitter/receiver becomes dirty,

malfunctioning may result. Use a soft cloth to gently wipe dirt 

off the infrared transmitter/receiver.

- If dust accumulates inside the infrared transmitter/receiver,

the product cannot transmit or receive infrared rays properly, 

resulting in a malfunction. To clean the dust accumulated 

inside, contact an authorized SHARP servicing dealer or

service center (extra charge required).

- Use only the power cord supplied with the monitor.
- Do not damage the power cord nor place heavy objects on

it, stretch it or over bend it. Also, do not add extension cords. 

Damage to the cord may result in fire or electric shock.

- Do not use the power cord with a power tap. 

Adding an extension cord may lead to fire as a result of

overheating.

- Do not remove or insert the power plug with wet hands.

Doing so could result in electric shock.

- Unplug the power cord if it is not used for a long time.
- Do not attempt to repair the power cord if it is broken

or malfunctioning. Refer the servicing to the service 

representative.

- Microsoft, Windows, Windows Vista and Internet Explorer

are registered trademarks of Microsoft Corporation.

- HDMI, the HDMI Logo and High-Definition Multimedia

Interface are trademarks or registered trademarks of HDMI

Licensing LLC.

- Adobe, Acrobat, and Reader are either registered trademarks

or trademarks of Adobe Systems Incorporated in the United 

States and/or other countries.

- Intel, Celeron, and Intel Core 2 Duo are trademarks or

registered trademarks of Intel Corporation or its subsidiaries

in the U.S.A. and other countries.

- AMD, AMD Sempron, AMD Athlon, and combinations thereof

are trademarks of Advanced Micro Devices, Inc.

- This product comes with RICOH Bitmap Fonts produced and

sold by RICOH COMPANY, LTD.

- All other brand and product names are trademarks or

registered trademarks of their respective holders.

- Language of OSD menu used in this manual is English by

way of example.

- Illustrations in this manual may not exactly represent the

actual product or display.

●  The LED backlight in this product has a limited lifetime.

 * If the screen gets dark or does not turn on, it may be

necessary to replace the LED backlight. This LED

backlight is exclusive to this product and must be replaced 

by an authorized SHARP servicing dealer or service 

center.

 * Please contact your local SHARP servicing dealer or 

service center for assistance.

8

E

•  This product is for use indoors.
•  A mounting bracket compliant with VESA specifications is

required.

•  Since the monitor is heavy, consult your dealer before

installing, removing or moving the monitor.

•  Mounting the monitor on the wall requires special expertise

and the work must be performed by an authorized SHARP
dealer. You should never attempt to perform any of this 
work yourself. Our company will bear no responsibility 
for accidents or injuries caused by improper mounting or
mishandling.

•  This monitor cannot be used in vertical orientation.
•  Use the monitor with the surface perpendicular to a level

surface. If necessary, the monitor may be tilted up to 20
degrees upward. 

•  When moving the monitor, be sure to hold it with either

handles or the corners on the bottom of the unit. Do not
place your hand on the screen. This may cause product 
damage, failure, or injury.

•  This monitor should be used at an ambient temperature

between 41°F (5°C) and 95°F (35°C). Provide enough
space around the monitor to prevent heat from 
accumulating inside.

7-7/8 [20]

Unit: inch [cm]

2 [5]

2

[5]

2

[5]

1-7/16 [3.5]

•  If it is difficult to provide sufficient space for any reason

such as the installation of the monitor inside a housing, or 
if the ambient temperature may be outside of the range 
of 41°F (5°C) to 95°F (35°C), install a fan or take other
measures to keep the ambient temperature within the 
required range.

•  Temperature condition may change when using the monitor

together with the optional equipments recommended by
SHARP. In such cases, please check the temperature 
condition specified by the optional equipments.

•  Do not block any ventilation openings. If the temperature

inside the monitor rises, this could lead to a malfunction.

•  Do not place the monitor on a device which generates heat.
•  Do not use the product in locations where the unit is

exposed to direct sunlight or other strong light. Since this 
product operates with infrared rays, such light may cause a 
malfunction.

•  Fix the USB cable with the cable clamp (supplied).

(1)  Coil the cable into two loops approx. 1-9/16 inches

(4 cm) in diameter at approx. 5-7/8 inches (15 cm)
from the mini USB connector.

(2)  Fix the loops to the fixing part above the USB port with

the cable clamp.

(2)

(1)