Chapter 2 System Utilities; Firmware Upgrade Sop - Acer S5201M Series Service Manual

Chapter 2 System Utilities

Firmware Upgrade SOP

Basic Operating
Low-Power Standby Mode： ： ： ：
This mode is applied for normal situation. If you want to enter this mode, you could just
plug in power cord. Power LED will show Red for 1 sec then show Orange.
When the power LED shows Red, it means system is not ready for low-power standby.
In another word, if the power LED shows Orange, it means system is in low-power standby
mode and the whole system is not supported by power except MCU and its related circuits.
Meanwhile, the power consumption should under 1W.
Download Mode： ： ： ：
This mode is applied for Download firmware or debug.
One method to enter this mode is that you should press and hold keypad Power and
Menu together, then plug in power cord. Release the two keypads until the Power LED
show Purple continuously.
The other method is to type RS-232 Command：<CR>*Stby=H#<CR>
In download mode, system will be supported by full power but not turn on projector. You
can use DLP composer and communicate with DLP ASIC. Thus, you should download
firmware in this mode.
Download WT6702 MCU Code： ： ： ：
System needs a few sec to download WT6702 MCU automatically. (in Low-Power
Standby)
When Downloading：POWER and Temp LED will show red.
When Download Success：System will go back Low-Power standby mode and Power
LED will show red.
When Download Fail: POWER and Lamp LED will show red.
<Notice：Do NOT interrupt power when downloading.>
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