Hisense LCD3703EU Schematic
LCD3703EU
CHASSIS SERVICE MANUAL
(V1.0)
JUL. 13 2005
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
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 resistorcapacitor 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
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the chassis have special safety-related
characteristics. These characteristics ar e oft en passed unnotice d by a visual inspection. When replacement parts are required, be sure the servi ce technician uses
replacement parts specified by us that have the same characteristics as the original
part. Unauthorized substitutions may result in fir e, electric shock, injury to persons
or other hazards. This LCD TV product should be situated away from heat source
such as radiation, st ove s, or other product that produce heat.
INNOVATION IS LIFE
PRODUCTFUNCTION
- Back connections
INNOVATION IS LIFE
PRODUCT FUNCTION
Note: The above figures are for reference only, please refer to the
actual units to determine their appearance
.
INNOVATION IS LIFE
PRODUCT FUNCTION
LCD-TV features
• 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 and fastext feature
• NICAM/A2 sound
• Three SCART interface
• Multi-language OSD
INNOVATION IS LIFE
LCD PANEL SPEC.
General Description
－ The LC370W01 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 37.02 inch
diagonally measured active display area with WXGA resolution (768 vertical by 1366 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 LC370W01 has been desig ned t o apply the 8Bit LVDS interface.
－ It is intended to support LCD TV, PCTV where high brightness, wide viewing angle, high color saturation,
and high col or are i mport ant.
INNOVATION IS LIFE
LCD PANEL SPEC.
General Features
Active Screen Size 37.02 inches diagonal
Outline Dimension 960.0(H) x 111.0(V) x 590.0(D) mm(Typ.)
Pixel Pitch 0.42675(H) x 0.42675(W)
Pixel Format
Color Depth 16.7M colors
Luminance, White 500 cd/m
Contrast Ratio 600:1
Viewing
Angle(CR>10)
Power
Consumption
Response Time 16ms
Display Operating
Mode
Surface T reatment
1366 horiz. By 768 vert. Pixels RG B strip
arrangement
2
(Center 1 points ty p.)
View Angle Free (R/L 176(T yp.), U/D 176(Typ.))
Total 200 Watt (T yp.)
T ransmissive mode, Normally Black
Hard-Coating (3H), Anti-Glare,
Reflectance < 2%
INNOVATION IS LIFE
BLOCK DIAGRAM
Chassis Block Diagram
LVDS CONNECTOR
1
12
…
INVERT
1
12
POWER SUPPLY +24V
POWER SUPPLY +24V
…
1
AC
230V
INPUT
POWER BOARD
30
LCD PANEL
Power connector
+12V
+5V standby
+5V/M
Power conntrol
Bri. control
I/O CONTROL
+15V
+12V
+5V
AV
IN/OUT
To lcd panel lvds connector
LCD PANEL POWER SUPPLY IS
+12V(CHECK POINT)
MAIN BOARD
IIC BUS R/G/B/FB
VIDEO INPUT
TUNER BOARD
Sound
Amp.
Connect to speaker
Connect to earphone
130
RS232
DVI-D
INPUT
D-SUB
15PIN
RF
V
U
Y
Scart3
VIDEO IN/OUT
Scart2
S-video
VIDEO IN/OUT
Remote control Key button
Scart1
CANNAL+ RGB IN
AUDIO
INPUT
INNOVATION IS LIFE
R
L
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