Index of content
Copyright©2005 Aplus Technic® All Rights Reserved
1
1.Speacifi cations ........................................ 2
1.1 TV System ......................................... 2
1.1.1 Introduction .................................. 2
1.1.2 Key Features ............................... 2
1.1.3 System Diagram .......................... 3
1.2 Panel speacifi cations ......................... 3
1.2.1 General spec brief ....................... 3
1.2.2 Optical spec brief ......................... 4
1.3 I/O interface ....................................... 5
1.3.1 Overview ..................................... 5
1.3.2 Video Functionality ...................... 6
1.3.3 Audio Functionality ...................... 6
1.3.4 Top keypad .................................. 6
1.4. Power ............................................... 7
1.4.1 External power supply ................. 7
1.4.2 Power switch ............................... 7
1.4.3 Power state ................................. 7
1.4.4 Working environment .................. 7
1.5. Channel management ...................... 7
1.5.1 Air/CATV ...................................... 7
1.5.2 Close Caption/ Vchip ................... 8
1.5.3 Miscellaneous .............................. 8
1.6. Safety & EMI test .............................. 8
1.6.1 Safety .......................................... 8
1.6.2 EMI .............................................. 8
1.7. Appearance & Carton ....................... 8
1.7.1 LCD TV dimension ..................... 8
1.7.2 Package dimension ..................... 8
1.7.3 Weight ......................................... 9
1.7.4 Packing detail .............................. 9
1.8. Reliability test ................................. 10
1.8.1 Temperature test ....................... 10
1.8.2 Humidity test .............................. 10
1.8.3 Thermal shock test .................... 10
1.8.4 Non Operating Random Vibration Test
(Packaged) ......................................... 10
1.8.5 Packing Drop Test ..................... 10
2.Drawing ................................................. 11
3.Dis-Assembly & Assembly ..................... 13
3.1.Stand .............................................. 13
3.2.Stand bracket ................................. 13
3.3.Back cover ...................................... 13
3.4.Keypad wire .................................... 13
3.5.VGA screws .................................... 14
3.6.I/O and EMI meael screws ............. 14
3.7.EMI metal ....................................... 14
3.8.Front cover ..................................... 14
3.9.Main board ..................................... 15
3.10.Inverter PCB ................................. 15
3.11.Panel high-voltage cables ............ 15
3.12.LCD metal .................................... 15
Pass the cables ..................................... 15
3.13.Top keypad ................................... 16
3.14.Keypad semi kit fi xture ................. 16
3.15.Speakers ...................................... 16
4.FAULT FINDING TREE ......................... 17
Main page of fault fi nding tree ............... 17
Power supply repair fl owchart ............... 18
OSD display repair fl owchart ................. 19
PC mode repair fl owchart ...................... 20
TV mode repair fl owchart ...................... 21
AV, SV and YCbCr/ YPbPr mode repair
fl owchart ................................................ 22
Audio repair fl owchart ............................ 23
5.SDK BOM .............................................. 24
SV
VGA INPUT
D_Sub
JACK
3bit
24bit
24bit
24bit
YCbCr / YPbPr INPUT
YCbCr / YPbPr INPUT
Tuner
BOX
VChip
Close Caption
8bit
8bit
Video
Decoder1
De-Interlace
ADC
Decoder
Audio
Processor
A port
B port
RA port
MCU
Video Image
Processor
LVDS
IC
Audio
Amplifier
Headphone
Driver
AV
SV
Keypad & IR
Speaker
Earphone Jack
Circuit Diagram
PANEL
VGA
AV
