24
Chapter 1
35
Audio_Center_Gnd_sig
nal (2)
'Center' signal of surround audio channels.
After decoding Dolby digital or other surround audio, digital receiver sends
this signal to LCDTV main board for further processing.
36
Earphone_for_subpictu
re_R ( 2 )
Audio ' Right ' channel paired with sub-picture.
37
Audio_Woofer_Gnd_gn
d ( 2 )
Ground signal paired with audio ' Woofer ' channel.
38
Audio_Rear_L_R_Gnd
_of_gnd ( 3 )
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.
39
YUV_1_Pr_Return ( 6 )
Return path of ' Pr ' signal. It belongs to YUV signal set -1.
40
YUV_1_Pb_Return ( 6 )
Return path of ' Pb ' signal. It belongs to YUV signal set -1.
41
YUV_1_Y_Return ( 6 )
Return path of ' Y ' signal. It belongs to YUV signal set -1.
42
Audio_Front_L_R_Gnd
_of_Gnd
'Ground' path paired with audio front "Left" and "Right"
43
Teletext_Hs ( 3, from
mainboard )
Horizontal Sync signal. LCDTV main board issues it for the use of Teletext
decoder IC on the I/O module.
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
Disable all the analog audio signals from I/O modules
49
12V_max_1A_a ( 2 )
Power pins which 12V to digital receiver.
50
12V_max_1A_b ( 2 )
Power pins which 12V to digital receiver.
51
5V_max_1.5A_a ( 2 )
Power pins which 5V to digital receiver.
52
5V_max_1.5A_b ( 2 )
Power pins which 5V to digital receiver.
53
USDA
SDA signal issued by LCDTV main board to access ICs and
modules of analog option
54
USCL
SCL signal issued by LCDTV main board to access ICs and
modules of analog option
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.
LCD
Item
Specification
Vendor & model name
QDI
LCD display area (diagonal, inch)
26 (660.5mm)
Display technology
TFT
Pin Definition Between Main Board and I/O Board
Item
Specification
Summary of Contents for AL2671W
Page 4: ...4 Chapter 1 LCD Main Board Block Diagram Audio Board Block Diagram ...
Page 5: ...Chapter 1 5 Board Layout Board Layout is not ready as the service guide released ...
Page 26: ...26 Chapter 1 ...
Page 30: ...44 Chapter 3 ...
Page 48: ...66 Chapter 4 ...
Page 50: ...84 Chapter 6 Exploded Diagram Acer ...
Page 56: ...90 Chapter 6 NS SCREW T3 12 P NI 86 M01V7 012 Picture Partname Description Part Number ...
Page 57: ...Chapter 6 91 ...