akira LCT-32EL0SSTP User manual

LCD TV
Service Manual

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Model No.: LCT-32ELOSSTP.doc
Version: 1.0
MODEL:
LCT-32EL0SSTP

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Model No.: LCT-32ELOSSTP.doc
Version: 1.0
CONTENTS
SAFETY PRECAUTION.........................................................................................................................4
SPECIFICATION.....................................................................................................................................6
DISPLAY OVERVIEW..........................................................................................................................10
ADJUSTMENT STANDARD................................................................................................................12
FIRMWARE UPDATE...........................................................................................................................15
FACTORY MENU .................................................................................................................................18
TROUBLESHOOTING.........................................................................................................................19
BLOCK DIAGRAM ..............................................................................................................................22
BILL OF MATERIAL............................................................................................................................24
CIRCUIT DIAGRAM............................................................................................................................37
EXPLODED VIEWAND PART LIST ..................................................................................................46
WALL-MOUNTING BRACKET INSTALLATION GUIDE................................................................47

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Model No.: LCT-32ELOSSTP.doc
Version: 1.0
IMPORTANT SAFETY PRECAUTION

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Model No.: LCT-32ELOSSTP.doc
Version: 1.0

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Model No.: LCT-32ELOSSTP.doc
Version: 1.0
SPECIFICATION
Panel Type 32” Wide TFT Colour LCD
Display Area 697.685mm * 392.256mm
Display Color (8bit) 16.7 million
Pixel Pitch 170.25um * 510.75um * RGB
Recommended Resolution 1366 * 768
Contrast Ratio 500(Min), 600(Typ)
Luminance white 500 cd/㎡
Panel
Viewing Angle Viewing angle free (R/L 176(Typ.), U/D
176 (Typ.)
Analog RGB 15 pin D-Sub Input
PC
DVI Input
Composite Input
S-Video Input
SCART1, 2 Input
Component1, Input
PC(analog RGB) Input
Video
DVI Input
Audio Composite Input
Component 1, Input
Headphone Output
SCART1,2 Input
PC/DVI Audio Input
In/Out
Euro A/V SCART1(Full), SCART2(Half)
Antenna 75ΩCoaxial cable
Color System PAL/SECAM
Sound System B/G,D/K,I,L
Stereo Type NICAM, A2
RF Signal
Text TELETEXT
Power Consumption 160 Watts
Power Save Mode Less then 5 watts
Speaker 10 Watts *2
Plug & Play DDC 1/2 B
Screen Control 16 Colour On Screen Display Meun, Bit
Map
Others
Weight Net: 20.1kg

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Gross:24.6kg
Remote Controller Yes
Dimension 932(W)*238(D)*567(H) : Speaker(stand
included)
Specification are subject to changes without prior notice.

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Chassis General Spec

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DISPLAY OVERVIEW – Front View
1) LCD Display : Displays the current contents of the display.
2) MENU Button : Displays the main OSD menu. Exitx from a sub-menu.
3) SOURCE Button : Displays a menu of all of the available input sources.
4) Channel(▼/▲) Buttons : Press CH(▲) or CH(▼) to change channels. Also used to
select the OSD menu.
5) Volume(◄/ ►)Buttons : Press VOL(◄) or VOL(►) to change the volume. Also use to
increase or reduce values in an OSD menu.
6) POWER Buttons : Press this button is Standby mode to turn off the LCD TV.
(Use this button after pressing the main power button on the rear panel of the LCD TV.)
7) Remote Control Receiver :The function for receiving the radio waves emitted from
the remote control.
8) Power Indication Lamp : If the AC cord is connected, the red lamp is on,
9) External Speakers : Output device for LCD TV sound

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Rear View
1) DVI-D : Connects the DVI cable to the Dvi connector on the computer.
2) ANALOG RGB : Connects the VGA signal cable to the VGA connector on the
computer.
3) PC AUDIO INPUT : Connect to the audio-output port of a PC.
4) Head Phone Jack : Connects with a headphone.
5) COMPONENT VIDEO INPUT : Jack for connecting the DVD player (or VCR player or
Digital TV playback player)
6) COMPONENT AUDIO INPUT : Jack for connection the DVD player (or DTV) audio
input connector.
7) AV : Composite : -Composite Video IN : Connect with the Video input terminal
from a VCR(or DVD Player)
. -Audio L/R IN : Connect with the Audio-Left/Right from a
VCR(or DVD Player)
8) ANT (VHF/UHF) Connector : Connect with an external cable from the external
antenna.
9) SCART1 (Full) / SCART2(Half) (PAL Model) : Connects PAL-method TV Audio/Video.
10) S-VIDEO : S-Video signal from an S-VHS VCR or Laserdisc player.
11) Main Power Button : Press this button to switch the LCD TV main power on/off. (To
use the TV,
12) AC Input Connector : To input AC power cable from a power outlet.

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ADJUSTMENT STANDARD
APPLICATION
This standard is applied on all LCD TV models with VCB3001 and VCB3002 Chassis.
ASSIGNMENT
This chassis is a non-charging type with insulated power unit. Therefore, insulated
transformer is not required. In order to protect the adjustment unit, however, it is
recommended that an insulated transformer between the power supply line and input side of
chassis is to be operated and adjusted.
The adjustment should follow the order strictly. However, it may be revised considering the
productivity.
Without any other specification, the adjustment should be performed in the surrounding
temperature of 25±5°C and humidity of 65±10%.
When adjustment, the input voltage of receiver should be maintained at 220V, 60Hz.
Without any other specification, the receiver should be operated for about 15 minutes before
the adjustment.
- The pre-operation should be performed after receiving 100% White Pattern of Pattern
General
- Not Used Patten generator White Pattern Entering method
a) Enter into setup mode pressing menu key on the adjustment R/C.
b) Selecting White after entering ISM Mode using arrow keys in setup menu of R/C,
then 100% Full White Pattern will be shown.
The setup can be heartrun without any specific signal generator in this mode.
(Caution) When the screen is kept still more than 20 minutes, “After-image” around black level may
happen (especially for Digital pattern or Cross Hatch pattern which have clear white/black colors).
ADJUSTMENT ITEM
1) EDID(The Extended Display Identification Data )/DDC(Display Data Channel)
download
2) AD9883A-Set Adjustment
3) White Balance Adjustment
4) Main/Sub Color Adjustment
1. EDID(The Extended Display IdentificationData) / DDC(Display Data Channel) download
a)The information is exchanged without user’s command to PC or monitor since they are
specified in VESA. In other words, the function is made for “Plug and Play” which
reconfigures user’s environment to be used in no time while automatically communicating
with monitor.

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b) Analog EDID DATA (RGB)
c) Digital EDID DATA (DVI)
2. AD9883A-Set Adjustment
a) Introduction Analog Adjustment for AD9883A-Set => This is a function for the optimal level of
black and gain to be automatically set from digital converter and RGB variation to be adjusted.
b) Used Equipment
Pattern Generator(capable of generating 720P Vertical 100% Color Bar
Pattern (The pattern type is shown as follows and the caution should be used not to
confused with 75% color bar which is a close pattern) and the level of output should be
precisely adjusted within 0.7± 0.1Vp-p

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<Figure> Adjustment Pattern : 720P Vertical Color Bar>
3. Adjustment Method
Input 100% Vertical Color Bar Pattern (TVBAR_100)
in 720P Mode which may be supported for
Component input, and then select Component1 or
Component2 for input and “STANDARD” for image.
Wait for more than a second after receiving signal
and press S.SELECT on adjustment R/C (Service
remote controller) while selecting “WB Adjust” for
automatic adjustment.
In case of abnormal adjustment, perform the re-adjustment after confirming Patter or adjustment
condition.
When adjustment is done, exit the adjustment mode pressing S.SELECT.

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FIRMWARE UPDATE

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FACTORY MENU

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TROUBLESHOOTING
Power Related

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Screen Related