Hisense LCD3201EU User manual
LCD3201EU
SERVICE MANUAL
(V1.0)
INNOVATION IS LIFE
INNOVATION IS LIFE
DEC. 21 2004
INNOVATION IS LIFE
INNOVATION IS LIFE
CONTENTS
•SAFETY PRECAUTION
•PRODUCT SAFETY NOTICE
•PRODUCT FUNCTION
•LCD PANEL SPEC.
•BLOCK DIAGRAM
•CIRUIT DIAGRAM
•SOFTWARE UPDATING
•FAQ
•SPARE PARTS
INNOVATION IS LIFE
INNOVATION IS LIFE
SAFETY PRECAUTION
WARNING:
Service should not be attempted by anyone unfamiliar with the necessary precaution on this
receiver.The following are the necessary precaution to be observed before serving this chassis.
1.Since the power supply circuit of this receiver is directly connected to the AC power line ,an
Isolation transformer should be used during any dynamic service to avoid possible shock hazard.
2.When replacing a chassis in the cabinet, always be certain that all the protective devices are put
back in place, such as : non-metallic control knobs, insulating cover,shields, isolation resistor-
capacitor network etc.
3.When replacing parts or circuit boards, disconnect the power cord.
4.When replacing a high wattage resistor (oxide metal film resistor ) on the circuit board, keep the
resistor(1/2in) away from circuit board.
6.Connection wires must be kept away from components with high voltage or high temperature.
7.If any fuse in this LCD TV receiver is blown , replace it with the FUSE specified in the chassis
part list.
INNOVATION IS LIFE
INNOVATION IS LIFE
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the chassis have special safety-related
characteristics.These characteristics are often passed unnoticed by a visual inspe-
ction.When replacement parts are required , be sure the service technician uses
replacement parts specified by us that have the same characteristics as the original
part. Unauthorized substitutions may result in fire , electric shock , injury to persons
or other hazards.This LCD TV product should be situated away from heat source such
as radiation,stoves,or other product that produce heat .
INNOVATION IS LIFE
INNOVATION IS LIFE
PRODUCT FUNCTION
-Back connections Input connections
- RS232 X1 ( for software updating)
- Digital RGB(DVI-D) input X1
- Analog RGB 15pin input X1
- Cable/antenna RF X1
- Component input X1
- S-Video input X1
- Video input X1
- Scart (CVBS+RGB in+Y/C) X1
- Scart (Video in+Video out) X1
- S-Video input X1
- AV audio input X1
- PC audio input X1
Output connections
-Scart CVBS output X2
-Mini-jack for stereo X1
Note: The above figures are for reference
only, please refer to the actual units to
determine their appearance.
VIDEO
S
-VIDEO
RS-232C
PC
-AUDIO
RL
AUDIO
YPb/Cb Pr/Cr
COMPONENT
ANT 75 VGA DVI
12 13 14 16 17 18 19 20
21
22
23
24
Removing the cover from back cover
SCART2
SCART1
21
LCD-TV features
PRODUCT FUNCTION
•Multimedia - TV receiver, Video monitor and PC display, all in one.
•Wider viewing angle,over 176 view angle
•Digital display device - truthfully reproducing the images, without distortion
or blurring, irrespective of magnetic or geomagnetic effect.
•200 channels storage
•Sleep timer
•Teletext with 252 pages memory
•NICAM/A2
•Dual SCART interface
•Multi-language OSD
INNOVATION IS LIFE
INNOVATION IS LIFE
INNOVATION IS LIFE
INNOVATION IS LIFE
－The LTA320W1-L02 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive type display operating in the normally black mode. This TFT-LCD has a 32.0 inch
diagonally measured active display area with WXGA resolution (768 vertical by 1280 horizontal pixel array).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in vertical stripes.
Gray scale or the brightness of the sub-pixel color is determined with a 8-bit gray scale signal for each dot,
thus, presenting a palette of more than 16.7M(true) colors with 8Bit.
－The LTA320W1-L02 has been designed to apply the 8Bit LVDS interface.
－It is intended to support LCD TV, PCTV where high brightness, wide viewing angle, high color saturation,
and high color are important.
CN1
(20pin)
LVDS
5pair
+5V
Power Circuit
Block
Source Driver Circuit
TFT - LCD Panel
(1280 × RGB × 768 pixels)
G1 S1 S1280
G768
Back light Assembly
(Direct Light Type_16CCFL)
2pin x 7CNs
(High)
RGB
Timing Controller
(LVDS Rx integrated)
Gate Driver Circuit
Inverter
Block
CN2
(14Pin)
+120V
GND
LCD PANEL SPEC.
General Description
LCD PANEL SPEC.
INNOVATION IS LIFE
INNOVATION IS LIFE
500:1Contrast Ratio
View Angle Free (R/L 170(Typ.), U/D 170(Typ.))
Viewing
Angle(CR>10)
16.7M colorsColor Depth
1280 horiz. By 768 vert. Pixels RGB strip
arrangement
Pixel Format
450 cd/m2 (Center 1 points typ.)Luminance, White
Total 140 Watt
Power
Consumption 16msResponse Time
Transmissive mode, Normally Black
Display Operating
Mode Hard coating(3H), Anti-glare treatment of the front
polarizer,
Surface Treatment
0.0.537mm x 0.537mm x RGBPixel Pitch 687.36(H) x 412.42(V) x 53.0(D) mm(Typ.)Active area
32.0 inchesActive Screen Size
General Features
INNOVATION IS LIFE
INNOVATION IS LIFE
BLOCK DIAGRAM
Chassis Block Diagram LCD PANEL
INVERT
…
14
1
Remote control Key button
Power board
Digital boardAudio board
LVDS CONNECT 30PIN 9PIN插座 7PIN插座
BLOCK DIAGRAM
INNOVATION IS LIFE
INNOVATION IS LIFE
VIDEO Processing part
LCD PANEL
U500
GM1501
Video Processing
Build in MCU
24LC32
EEPROM
U501
K4D263238F
DDR MEMORY
U600
ST232
U601
RS232 H/V
H/V
R/G/B
VGA
Y
Pb/Cb
Pr/Cr
74LVC14
U302
DVI
PI5V330
VIDEO SWITCH
U702
ANT.IN RF
A1
R/G/B/FB
R/G/B/FB
R/G/B/FB
8 BIT ITU656
LVDS
VPC3230D
VIDEO DECODE
U400
PI5V330
VIDEO SWITCH
U4
SDA5550M
TXT DECODE
U703
Y/C
S-VHS
SCART2
SCART1
Slave IIC BUS
VIDEO & H/V
CANNAL+
SST39VF040
FLASH MEMROY
U903
8 bit
62WV5128BLL
U706
AM29LV040
PROGRAM
U704
KEYPAD
IR
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