TCL LE32E1600 – Side-lit LED LCD TV –– SMPS schematic
Power supply regulator board circuit diagram – TCL Side lit type LCD TV - TCL LE32E1600Product Model: LE32E1600;
Product movement: MST6M182
Remote control: RC06
Universal remote control set-up code to check with TCL brand TVs: 0398
Debugging instructions only for LCD TV movement debugging, commissioning
before the need for all parts of the circuit assembly test, so that the
Part of the circuit components without error, contact, leakage, leakage
welding, when the part of the circuit in line with the circuit
schematic and assembly requirements before Start debugging, debugging
equipment used in advance must be metering, proofreading, to ensure
accuracy, or shall not be used.
Instrument, instrument, operating tool configuration:
A. suitable for 6M182 movement of a LED tooling machine
B. a digital voltmeter
C. AC power supply one
D. factory standard signal cable input system
E. 40MHz dual trace oscilloscope.
Inspection
methods
A. the motherboard and the appropriate tooling machine connected to connect the
company debugging signal.
B. turn on AC 220V power supply, the machine into standby mode, press the remote
control or the control of the boot button, boot into the standard state.
C. Press the remote control "program +" "program -" key to
check the program number of the image and audio signals, should have color
card, box, vertical Cards, color bars, digital photos, three primary colors and
other different types of images and audio signals, requiring no leakage, such
as leakage, Fill
this signal with automatic search or manual search
D. receive PAL color test card signal, with the remote control volume, balance,
contrast, brightness, color, sharpness control, Sound, the picture should be
changed
E. TV standard check: receive PAL-D / K standard images and audio signals, in the
search can automatically identify the image system and
sound system; check the other images and sound system is correct.
F. external terminal input and output check: press the "source" button,
the machine installed on the "source" menu, including: TV, AV, COMPONENT,
PC, HDMI, USB, oscilloscope should be able to observe the corresponding sound,
video input and output signals, tooling machine On the image and sound signal
should be normal. Also need to detect whether the AV output signal is normal.
Power
supply and LED driver circuit diagram
Products
directly with AC power supply, power supply voltage on the TV back cover signs
on the instructions. Connect one end of the AC power cord to the TV
The
rear terminal tag is inserted into the power port and the other end is
connected to the power outlet to complete the power connection. In a lightning
or pay when the power supply is powered off, unplug the power plug and the
antenna plug. The power cord does not allow any other things to be tipped or
wound in the above, do not place the power cord where it may be destroyed.
Precautions
The
display is a precision display device, the screen has a bright spot, dark
spots, or red, green, blue and the like a little dead pixels
This
is a normal phenomenon, not a bad product. A, the display screen for a long
time to display the same still picture, it will leave a TV A
blur, this damage is caused by improper use. The TV in the connection of
various systems, the system may not match With the phenomenon, especially when
connected to the computer, some graphics cards may not match, and the machine
only to identify the refresh rate of 60HZ.
SMPS Iinverter part schematic
LED Driver schematic
Click on the pictures to zoom in
As
the machine uses an embedded operating system, the software is more complex,
may be in the work or standby software problems, such as If the restart can
return to normal, it is not a fault.
Case
prevention measures, product use and routine maintenance knowledge.
LCD
screen material: the LCD screen looks like a solid black screen, in fact, this
layer of the screen manufacturers will add a layer of special coating. The main function of this layer of special coating is
to prevent the user in the use of other light source reflective
and glare, while strengthening the LCD screen itself, the color contrast effect.
But because the manufacturers use this layer of plating Membrane materials are
not the same, of course, its durability will be different. So the user in the
clean, do not:
You
can wipe the screen surface with any alkaline solution or chemical solution.
LCD panel stains are generally divided into species, one is due For the
accumulation of dust in the air, one is the user inadvertently left the
fingerprints and oil.
As
the LCD panel itself is a complex physical structure design, so when wiping the
LCD panel, do not use unknown cleaning solution, but cannot use water and
alcohol solution. There are three errors here
1,
with a soft cloth (glasses cloth) or paper towels to wipe the LCD screen, it is
recommended to use a dedicated LCD wipes do not with
glasses
cloth and paper towels to wipe the LCD screen, it is easy to scratch
the "squeamish" LCD screen. You can use a special LCD wipes such as
Supermax2020 in the LCD panel gently wipe, in general, fingerprints and
oil
The
dirty is not as easy as the former, but it is not a problem if you use a
dedicated LCD wiping cloth For the special LCD wipes used in special fibers,
with a higher than ordinary high-end glasses cloth wipe the effect of more, and
And soft will not scratch the screen, but also has the unique function of
dissipating static electricity; special reminder: the general cloth and paper
towel is LCD panel killer.
2,
with clean water LCD screen. The use of water, liquid easily into the liquid
crystal display and equipment inside, so Will cause the device circuit to
short-circuit, thus burning expensive electronic equipment. For fingerprints
and oil, water is still powerless.
3,
with alcohol and some other chemical solvents to clean the LCD screen. In
general, alcohol is a commonly used organic solution Agent, can dissolve some
dirt is not easy to wipe, if only used to clean the display shell, but also no
adverse effects.
But
do not use alcohol to clean the LCD screen, because now the LCD screen, are
coated with a special coating on the screen, So that the screen has a better
display, once the use of alcohol to wipe the monitor screen, it will dissolve
this layer of special coating, Display effect adversely affected. With chemical
solvents even more undesirable, this chemical on the "arrogant" of
the LCD panel Jane Straight is a devastating blow. If your screen is
accidentally stained with fruit juice, saliva or coffee is not easy to clean stains,
do not use paper towels or glasses cloth and the like to wipe hard, because it
is easy to wipe the stains at the same time also Scrape the LCD screen; you can
use liquid crystal special wipes such as SupermAX2020 sprayed with no amount of
ionized water Supermax2020
slightly moist, and then go to wipe, you cannot only stains without traces of
your LCD screen screen.
6,
the main technical parameters (including the movement used, screen, power
supply specifications)
