Akai PS4210X Schematic

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Service Manual

Model: PS-4210X

Specifications & Design are subject to change without notice.

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Contents

1. Contents……………………………………………………………...1

2. Features……………………………………………………………...2

3. Safety Precautions………………………………………................3

4. Photo of PDP taking apart…………………………….……………6

5. PANEL Part…………………………………………………………..8
a. Adjustment……………………………………………………….8
b. Trouble Shooting………………………………………………10
c. Power specification……………………………………………20

6. Introduction to PDP circuit boards………………………………..23

a: Signal flow-chart………………………………………………23

b: CHIP SUMMARY……………………………………………..24
c: Debug flow-chart………………………………………………25

7. Circuit Drawing……………………………………………………..26

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1. Features

The 42” PDP provides quality image displays and is suitable for a variety of
multimedia applications.
a. Available Input signals:

 The Digital module provides RGB (D-SUB15 PIN) and digital DVI input

connectors, and component video (RCA) input connectors. It supports
the quality input image of DVD and HDTV (480P/720P/1080i/1080P).

 The analogue module provides composite video (RCA), S-video

(DIN4P), The analogue module also provides one set of stereo audio
input connectors (RCA).

 The product supports PC image resolutions up to XGA (1024х768)

with a vertical frequency of 75HZ.

 RF terminal,you can watch TV expediently,The format contain

PAL-M/N,NTSC-M

b. General specification

 Model name: PS-4210X

 Number of pixel:852(H)×480(V) (1Pixel=3RGB Cells)

 Display area : 920.1(H) x 518.4(V)±0.5mm
 Color arrangement : RGB Closed type
 Number of COLRO : (R)1024 x (G)1024 x (B)1024
 Aspect Ratio : 16:9
 Peak Brightness : Typical 1200dc/　(1/100 White Window)
 Contrast Ratio : Typical 10000:1(Dark room 1/100 White Window)

(White Window Pattern at Center)

 POWER CONSUMPTION : Typical 320 W(Full White)
 Available voltage range:AC110V~240V
 Frequency range:50~60HZ(±3HZ)

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2. Safety Precautions

When servicing of PDP Module, it should be not enforced into another way
aside next rule, or a unaccustomed person should not repairing. When
using/handling this PDP Module, pay attention to the below warning and
cautions.

Warning

Indicates a hazard that may lead to death or injury if the warning is ignored
and the product is handled incorrectly.

Caution

Indicates a hazard that can lead to injury or damage to property if the
caution is ignored and the product is handled incorrectly.

1) WARNING

(1) Do not touch Signal and Power Connector while this product operates.
Do not touch EMI ground part and Heat Sink of Film Filter.
(2) Do not supply a voltage higher than that specified to this product. This may
damage the product and may cause a fire.
(3) Do not use this product in locations where the humidity is extremely high,
where it may be splashed with water, or where flammable materials surround
it.
Do not install or use the product in a location that does no satisfy the specified
environmental conditions. This may damage the product and may cause a fire.
(4) If a foreign substance (such as water, metal, or liquid) gets
inside the product, immediately turn off the power.
Continuing to use the product, it is may cause fire or electric shock.
(5) If the product emits smoke, and abnormal smell, or makes
an abnormal sound, immediately turn off the power.
Continuing to use the product, it may cause fire or electric shock.
(6) Do not disconnect or connect the connector while power to the product is
on. It takes some time for the voltage to drop to a sufficiently low level after the
power has been turned off.
Confirm that the voltage has dropped to a safe level before disconnecting or
connecting the connector.
(7) Do not pull out or insert the power cable from/to an outlet with wet hands. It
may cause electric shock.
(8) Do not damage or modify the power cable. It may cause fire or electric
shock.
(9) If the power cable is damaged, or if the connector is loose, do not use the
product: otherwise, this can lead to fire or electric shock.
(10) If the power connector or the connector of the power cable becomes dirty
or dusty, wipe it with a dry cloth.0therwise, this can lead to fire.
(11) PDP Module uses a high voltage (Max.450V dc). Keep the cautions
concerning electric shock and do not touch the Device circuitry when handling
the PDP Unit. And because the capacitor of the Device circuitry may remain

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charged at the moment of Power OFF, standing by for 1 minute is required in
order to touch the Device circuitry.

2) CAUTIONS

(1) Do not place this product in a location that is subject to heavy vibration, or
on an unstable surface such as an inclined surface. The product may fall off or
fall over causing injuries.
(2) Before disconnecting cable from the product, be sure to turn off the power.
Be sure to hold the connector when disconnecting cables. Pulling a cable with
excessive force may cause the core of the cable to be exposed or break the
cable, and this can lead to fire or electric shock.
(3) This product should be moved by two or more persons. If one person
attempts to carry this product alone, he/she may be injured.
(4) This product contains glass. The glass may break, causing injuries, if shock,
vibration, heat, or distortion is applied to the product.
(5) The temperature of the glass of the display may rise to 80°C or more
depending on the conditions of use If you touch the glass inadvertently, you
may be burned.
(6) If glass surface of the display breaks or is scratched, do not touch the
broken pieces or the scratches with bare hands. You may be injured.
(7) PDP Module requires to be handled with care not to be touched with metal
or hard materials, and must not be stressed by heat or mechanical impact.
(8) There are some exposed components on the rear panel of this product.
Touching these components may cause an electric shock.
(9) When moving the product, be sure to turn off the power and disconnect all
the cables. While moving the product, watch your step. The product may be
dropped or all leading to injuries of electric shock.
(10) In order to protect static electricity due to C-MOS circuitry of
the Drive part, wear a wrist band to protect static electricity
when handling.
(11) If cleaning the Panel, wipe it with a soft cloth moistened with water or a
neutral detergent and squeezed, being careful not to touch the connector part
of the Panel. And don’t use chemical materials like thinner or benzene.
(12) If this product is used as a display board to display a static image, “image
sticking” occurs. This means that the luminance of areas of the display that
remain lit for a long time drops compared with luminance of areas that are lit for
a shorter time, causing uneven luminance across the display The degree to
which this occurs is in proportion to the luminance at which the display is used.
To prevent this phenomenon, therefore, avoid static images as much as
possible and design your system so that it is used at a low luminance, by
reducing signal level difference between bright area and less bright area
through signal processing.
(13) Because PDP Module emits heat from the Glass Panel part and the Drive
circuitry, the environmental temperature must not be over 40°C.
The temperature of the Glass Panel part is especially high owing to heat from

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internal Drive circuitry. And because the PDP Module is driven by high voltage,
it must avoid conductive materials.
(14) If inserting components or circuit board in order to repair, be sure to fix a
lead line to the connector before soldering.
(15) If inserting high-power resistor (metal-oxide film resistor or metal film
resistor) in order to repair, insert it as 10mm away as from a board.
(16) During repairs, high voltage or high temperature components must be put
away from a lead line.
(17) This is a Cold Chassis but you had better use a cold transformer for safety
during repairs. If repairing electricity source part, you must use the cold
transformer.
(18) Do not place an object on the glass surface of the display. The glass may
break or be scratched.
(19) This product may be damaged if it is subject to excessive stresses (such
as excessive voltage, current, or temperature).
The absolute maximum ratings specify the limits of these stresses.
(20) The recommended operating conditions are conditions in which the
normal operation of this product is guaranteed. All the rated values of the
electrical specifications are guaranteed within these conditions.
Always use the product within the range of the recommended operating
conditions. Otherwise, the reliability of the product may be degraded.
(21) This product has a glass display surface. Design your system so that
excessive shock and load are not applied to the glass. Exercise care that the
vent at the corner of the glass panel is not damaged If the glass panel or vent
is damaged, the product is inoperable.
(22) Do not cover or wrap the product with a cloth or other covering while
power is supplied to the product.
(23) Before turning on power to the product, check the wiring of the product
and confirm that the supply voltage is within the rated voltage range. If the
wiring is wrong or if a voltage outside the rated range is applied, the product
may malfunction or be damaged.
(24) Do not store this product in a location where temperature and humidity are
high. This may cause the product to malfunction. Because this product uses a
discharge phenomenon, it may take time to light (operation may be
delayed) when the product is used after it has been stored for a long time. In
this case, it is recommended to light all cells for about 2 hours (aging).
(25) This product is made from various materials such as glass metal, and
plastic. When discarding it, be sure to contact a professional waste disposal
operator.
(26) If faults occur due to arbitrary modification or disassembly,
HAIER is not responsible for function, quality or other items.
(27) Use of the product with a combination of parameters conditions or logic
not specified in the specifications of this product is not guaranteed. If intending
to use the product in such a way, be sure to consult HAIER in advance.

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3.Photo of PDP taking apart

The introduction of circuit board at Back board:

NAME MATERIAL CODE
MODEL (PDP 42V7) 0094012032A
X-SUS(left) 0094014670
X-SUS(right) 0094014671
Y-SUS 0094014672
Y-DRIVER 0094014673
Z-SUS 0094014674
CTROL BOARD 0094014675
PSU 0094014676

Y-SUS

PSU

Z-SUS

Y-DRIVER(TOP)

Y-DRIVER(BTM)

X-SUS(left)

CTROL BOARD

X-SUS(right)

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Printed Circuit Digital Board(Main Board)In bom we call it Digital board subassembly

Printed Circuit Audio Board，In bom we call it Emulation board subassembly