Acer AT4202P, Руководство по обслуживанию

Страница: 4 / 99

Page 4 of 99
4 、 Trouble shooting chart.......................................... .................................. ....................…………..... 24
4-1 PANEL Trouble shooting…….………...................................... .....................................……… 24
4-2 Solution process of MGPC0……………………................ ...... ....... ........... ...... ................ ...... 25
4-2-1 Panel cannot be lit up………………............................... ....................................………. 25
4-2-1-1 Check peripheral circuits procedure....................... ....................................……….
25
4-2-1-2 Check Image board procedure…............................. ....................................……… 26
4-2-2 Picture Display --Dynamic picture abnormal……………………………………………….
27
4-2-3 DVI picture abnormal…………...................................... ........................... .......……….. 28
4-2-4 Component picture abnormal…...................................... .............. .......................……. 29
4-2-5 RGB Picture Abnormal……………………….............................. ................... .......... ….. 30
4-2-6 Video Picture Abnormal………………………………………………………………………. 31
4-2-7 DC Power Supply……………………………………………………………………………..
32
4-3 TUNER
＆
AUDIO BOARD FAULTS HANDLING…………………………………………………… 33
4-3-1 Check DC Power Supply…………………………………………………………………………… 33
4-3-2 Tuner Faults Handling…….……………………………………………………………………….
33
4-3-3 Tuner
＆
Audio Board Faults Handling……..……………………………………………………… 34
5
、
White-Balance Adjustment………………………………………………………………………………… 35
5-1 Equipments list………..…………………………………. ………………………………………….. 35
5-2 Preparation and Adjustment process………. …………………………………………………….
35
6
、
DDC program and test……………………………………...……………………………………….………. 37
6-1 Equipments list and prepare……………………...………………………………………………… 37
6-2 Program and test process………...………..………………………………………………………… 37
7
、
Flash Update………………………………………...………………………………………………………
38
7-1 The list of Instrument………………………………………………………………………………….. 38
7-2 The operation explaining Flash Update……………………………………………………………..
38
8
、
Software Administer Block diagram……………………………………………………………………… 41
8-1 Main Block diagram （ Kernel part ） ………………………………………………………………… 41
8-2 SOURCE key Block diagram…………………………………………………………………………... 42
8-3 MENU key Block diagram……………………………………………………………………………..
43
8-4 Mode Check Block diagram…………………………………………………………………………. 45
8-5 SCART Key Choose Process………………………………………………………………………… 45
9
、
Block diagram & Explain.......................………………………..............……………………………. 49
9-1 PDP block diagram and functions…………………….. ………….. ……………………………… 49
9-2 Image board block diagram and signal introduce……………………………………..…………… 50
9-2-1 Image board block diagram………………………………………………………………………… 50
9-2-2 Input signal introduce………………………………………………………………………………… 51
9-3 TUNER board block diagram………………………………………………………………………….
51
10 、 Waveform of signal………………………………..….. ………..…….. …. ……………………..………. 52
10-1 Waveform of input signal……………..….. ………..…….. …. ……………………..……………. 52
10-2 Signal waveform in the image board. ………..…….. …. ……………………..………………… 55
11 、 11Check and Measure…………..….. …………..…….. …. ……………………..…………………….. 64
11-1 Image board………………..….. ……….. …. ……………..…….. …. ……………………..……. 64
11-1-1 Power Check and Measure….……..….. ………..…….. …. ……………………..……… 65