Acer AT3201W Schematic
Features
LCD Panel
T Max. resolution: 1366x768
T 16 CCFTs Backlight system
T Display area: 32 inches(813.3mm) diagonal
T Display color: 16.7 M colors
T Input Signal: 1-ch LVDS
T Contrast ratio:500:1(Typical)
T Brightness: 500 Cd/m
T Response Time(Tr+Tf):16 ms
T Viewing angle: 85
IO functions
T RCA Jack for YPbpr, YCbCr, Video and Audio
T 4-pin S-Din for S-Video
T 15-pin D-Sub for VGA
T 24-pin DVI/HDCP for DVi-D
T F type terminal for TV/CATV input
T 3.5mm earphone jack for Audio Line input
T 3.5 mm earphone jack for Audio Line output
T 3.5 earphone jack for Earphone output
2
(Typical)
o
(L)/85o(R),85o(U)/85o(D)
Video Functions
T Support NTSC/PAL/SECAM video format
T SUpport 480i/576i, 480p/576p, 1080i and 720p format
T Build in CLosed Caption and V-Chip functions
T Build in motion adaptive 3D Digital Comb-filter
T Build in Dynamic adaptive smoothing filter
T Build in Dynamic temporal frame-filtering Noise Reduction
T Build in Dynamic motion and edge adaptive De-interlacing
T Film mode 3:2 &2:2 pull down
T Screen display model 16:9/4:3/PANORAMA/ZOOM/PIP/POP
Mechanical
T Swivel: 40
T VESA mounting holes
o
(R:20o,L:20o)
Multi-Sound System
T MTS(NTSC), FM-FM
1
Power Source
T Input Voltage: 90~264V, 47~63Hz
T Input Current: 2.3A
T Power Consumption 210Watts
T Stand-by: 5 Watts Max.
Remote Controllers
T Multi-function remote controller
Speaker
T Internal Speaker: 10W x 2 stereo, volume adjustable
Others
T On screen display adjustment function
T ISP(In System Programming) function available for revising driver easily
2
Block Diagram
AV 2
AV 1
d
A
AV 3
R
L
A
O
MAIN Board
P
System Block&Writing Diagram
INVERTE
POWER
Board
UDI
Board
Second
I/O Board
V 4
Earphone O/
PANE
IR Recever
SPEAKER-
I/O Board
Tuner
Key Boar
SPEAKER-
3
LCD Main Board Block Diagram
Components are subject to be
changed without prior notice.
4
Pin Definition Between Main Board and I/O Board
s
No. Signal Name Function
1 Teletext_RGB_B ( 6 ) ‘ Blue ’ signal comes from Teletext decoder IC.
2 Teletext_RGB_G ( 6 )
3 Teletext_RGB_R ( 6 )
4 Teletext_fast_blanking
5 Teletext_start
6 SCART_aspect_ratio_1
7 DAC_RST ( 1 )
8 TX_232 ‘ TX ’ signal of UART
9 SVHS_2_C ( 3 ) ‘ Chrominance ’ signal of SVHS-2
10 SVHS_1_Return ( 3 ) Return path paired with Y and C of SVHS-1
11 SVHS_1_Y ( 3 ) ‘ Y ’ of SVHS signal set 1.
12 CVBS_1_Signal ( 2 ) CVBS-1
13 GND_1_of_( 3 ) Power ground
14 Audio_Center_Gnd_gnd ( 2 ) ‘ Ground ’ path paired with audio ‘ Center ’
15 Earphone_for_subpicture_L ( 2 ) Audio ‘ Left ’ channel paired with sub-picture.
16 Audio_Woofer_Gnd_woofer ( 2 )
17 Audio_Rear_L_R_Gnd_of_R ( 3 ) ‘ Right ’ signal of audio rear channels.
18 YUV_1_Pr ( 6 ) ‘ Pr ’ of YUV signal set 1.
19 YUV_1_Pb ( 6 ) ‘ Pb ’ of YUV signal set 1.
20 YUV_1_Y ( 6 ) ‘ Y ’ of YUV signal set 1.
21 Audio_Front_L_R_Gnd_of_R ( 3 )
22 Teletext_Vs ( 3, from main board )
23 Teletext_RGB_B_Return ( 6 )
24 Teletext_RGB_G_Return ( 6 )
25 Teletext_RGB_R_Return ( 6 )
26 GND_2_of_( 3 ) Power ground
27 SCART_mode_det_1 SCART mode detection ( RGB or CVBS )
28 RESET_I_O_Module LCDTV main board uses this pin to reset all components inside the I/O module.
‘ Green ’ signal comes from Teletext decoder IC.
‘ Red ’ signal comes from Teletext decoder IC.
Fast blanking signal for the use of Teletext decoder IC on I/O module.
Main board issues it for the use of Teletext decoder IC on the I/O module.
Aspect ratio indictor signal comes from pin-16 of ordinary SCART connector.
2
Main board used this pin to reset I
Audio woofer signal. After decoding Dolby digital or other surround audio, digital receiver sends thi
woofer signal to LCDTV main board for further processing.
‘ Right ’ channel of surround audio.
After decoding Dolby digital or other surround audio, digital receiver sends this signal to LCDTV main
board for further processing.
Vertical Sync. Signal issued by LCDTV main board for use of Teletext decoder IC on the I/O module.
‘ Blue ’ signal return for Teletext decoder IC.
Return path paired with ‘ Green ’ signal comes from Teletext decoder IC.
Return path of ‘ Red ’ signal comes from Teletext decoder IC.
C DAC on current I/O module.
5
29 RX_232 ‘ RX ’ signal of UART
g
30 SVHS_2_Return ( 3 ) Return path paired with Y and C of SVHS-2
31 SVHS_2_Y ( 3 ) ‘ Y ’ of SVHS signal set 2.
32 SVHS_1_C ( 3 ) ‘ Chrominance ’ signal of SVHS-1.
33 CVBS_1_Return ( 2 ) Return path for CVBS-1
34 CVBS_2_Signal ( 1 ) CVBS-2
‘ Center ’ signal of surround audio channels.
35 Audio_Center_Gnd_signal ( 2 )
36 Earphone_for_subpicture_R ( 2 ) Audio ‘ Right ’ channel paired with sub-picture.
37 Audio_Woofer_Gnd_gnd ( 2 ) Ground signal paired with audio ‘ Woofer ’ channel.
38 Audio_Rear_L_R_Gnd_of_gnd ( 3 )
39 YUV_1_Pr_Return ( 6 )
40 YUV_1_Pb_Return ( 6 )
41 YUV_1_Y_Return ( 6 )
42 Audio_Front_L_R_Gnd_of_Gnd ( 3 ) ‘ Ground ’ path paired with audio front “ Left ” and “ Right ”
43 Teletext_Hs ( 3, from main board )
44
Teletext_Hs_Vs_return ( 3 ) Common return path of horizontal and vertical sync signals which are issued by LCDTV main board
45
TV_Out Video output for signal set AV3_OUT
46 TV_R Audio ‘ Right ’ channel of signal set AV3_OUT
47 TV_L Audio ‘ Left ’ channel of signal set AV3_OUT
48 Audio_Mute
49 12V_max_1A_a ( 2 )
50 12V_max_1A_b ( 2 )
51 5V_max_1.5A_a ( 2 )
52 5V_max_1.5A_b ( 2 )
53 USDA
54
USCL
55 ID_1 Identification signal -1
56 ID_2 Identification signal -2
57 GND_3_of_( 3 ) Power ground
58 Audio_Rear_L_R_Gnd_of_L ( 3 ) Audio ‘ Left ’ channel paired with sub-picture.
59 YUV_2_Pr ( 3 ) ‘ Pr ’ signal of YUV-2 signal set.
60 YUV_2_Pb ( 3 ) ‘ Pb ’ signal of YUV-2 signal set.
61 YUV_2_Y ( 3 ) ‘ Y ’ signal of YUV-2 signal set.
62 Audio_Front_L_R_Gnd_of_L ( 3 ) ‘ Left ’ signal of audio rear channels.
After decoding Dolby digital or other surround audio, digital receiver sends this signal to LCDTV main
board for further processing.
Ground signal of rear left and right audio channels.
After decoding Dolby digital or other surround audio, digital receiver sends this signal to LCDTV main
board for further processing.
Return path of ‘ Pr ’ signal. It belongs to YUV signal set –1.
Return path of ‘ Pb ’ signal. It belongs to YUV signal set –1.
Return path of ‘ Y ’ signal. It belongs to YUV signal set –1.
Horizontal Sync signal. LCDTV main board issues it for the use of Teletext decoder IC on the I/O
module.
Disable all the analog audio signals from I/O modules
Power pins which supply +12V to digital receiver.
Power pins which supply +12V to digital receiver.
Power pins which supply +5V to digital receiver.
Power pins which supply +5V to digital receiver.
SDA signal issued by LCDTV main board to access ICs and modules of analog
option
SCL signal issued by LCDTV main board to access ICs and modules of analo
option
6
LCD Panel Characteristics
General Description
This LCD TV adopts QDI display modules which are color active matrix thin film transistor(TFT) liquid crystal
display(LCD) that uses amorphous silicon TFT as a switching device. THis model is composed of a TFT LCD
panel, a driving circuit and a backlight system.
THis TFT LCD has a 32 inch diagonally measured active display area with WXGA resolution
General Information
Item Specification Unit
Outline Dimension 750 x 447 mm
Display area 32 inches(813.3mm) Diagonal inch
Number of pixel 1366(H) x 768(V) pixel
Pixel pitch 0.5175(H) x 0.5175(V) mm
Pixel arrangment R,G,B Vertical stripe
Display color 16.7 M colors
Display mode Normally Black
Surface treatment Anti-glare and Hard-Coating(3H)
Weight Max.(TBD) Kg
Back-light 16 CCFTs
Input signal 1-ch LVDS
Power consumption 110.4(Typical) W
Optimum viewing direction 6 o’clock
7
Optical Characteristics
Optical characteristics are determined after the unit has been ‘ON’ and stable for arround 2 Hrs in a dark
environment at 25
veiwing angle of F and q equal to 0
o
C. THe values specified are at an approximate distance 50 cm from the LCD surface at a
o
Parameter Symbol Condition Min. Typ. Max. Unit Remark
L/R 21,22 85 Deg.
Viewing angle
range
Contrast ratio
Response time
Rise time
Fall time
U
D
r ms
d ms
11 85 Deg.
12
n
16 ms [ Note 4,5 ]
CR>10
[ Note 4,6 ]
85 Deg.
=0° 500 [ Note 2,4 ]
Gray to gray 16 ms
Chromaticity of
White ( CIE 1931 )
Chromaticity of
Red ( CIE 1931 )
Chromaticity of
Green ( CIE 1931 )
Chromaticity of
Blue ( CIE 1931 )
Luminance of white
White Uniformity
Wx 0.285
Wy 0.294
Rx
Ry
[ Note 4 ]
Gx
Gy
Bx
By
500 Cd/m2 [ Note 4 ]
( 5P )
1.25 [ Note 3 ]
NOTE:
Optical Characteristic Measurement Equipment and Method
1MI1ZZZSTD0VB3A: 1VB3ZZZST16 5 Units; 1MI1ZZZSTD0 5 PCS
NOTE:
Contrast Ratio(CR) is defined mathematically as:
Optical Stage ( x , y )
Surface Luminance with all white pixels
Contrast Ratio =
Surface Luminance with all black pixels
8
LCD Module
500mm
Pritchard 880
or equivalent
Ta:252 C, V
Dclk:80MHz, Luminance Ratio:100%
:12.0V, fV:60Hz,
LCD
NOTE: The variation in surface luminance, WHITE is defined by measuring LON at watch test position 1
a
through 5, and then dividing maximum LON of 5 points luminance by minimum LON of each 5 points
luminance.
WHITE = Maximum(LON1, LON2,....,LON5)/Minimum(LON1, LON2,....,LON5)
δ
δ
H
A
A: H/4 mm,
B: V/4 mm,
B
L3 L2
V
L1
H: 706.90 mm
V: 397.44 mm
@ H,V: Active Area
L5 L4
NOTE: This shall be measured at center of the screen.
NOTE: Response time is the time required for the display to transition from black to white(Rise Time, TrR) and
from white to black(Decay TIme, TrD).
TrR
100
90
Active Are
TrD
Optical
Response
10
0
NOTE: Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are determined for
the horizonal or x axis and the vertical or y axis with respect to the z axis which is normal to the LCD
surface.
9
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