这个机子的供电电压都正常,CPU也有温度,主板有开电源的信号,背光ENA无电压,PWM有5V,但还是黑屏。用809F看打印信息显示:2020-3-17, 19:6:55 COM4, BaudRate:115200 bps, RXD: VGA-> 4,TXD: VGA->11, Printed by RT809F:
Boot-
DRAM Channel A Calibration.
Byte 0 : Gating(2 ~ 62), Size=61, Mid=34, Set=34.
Byte 1 : Gating(2 ~ 57), Size=56, Mid=31, Set=31.
Byte 2 : Gating(2 ~ 72), Size=71, Mid=39, Set=39.
Byte 3 : Gating(2 ~ 67), Size=66, Mid=36, Set=36.
HW Byte 0 : DQS(9 ~ 43), Size 35, Offset 1, Set 25, HW_Set 29.
HW Byte 1 : DQS(5 ~ 39), Size 35, Offset 1, Set 21, HW_Set 25.
HW Byte 2 : DQS(7 ~ 43), Size 37, Offset 0, Set 25, HW_Set 27.
HW Byte 3 : DQS(11 ~ 41), Size 31, Offset 0, Set 26, HW_Set 28.
DRAM A Size = 1024 Mbytes.
Boot-
DRAM Channel A Calibration.
Byte 0 : Gating(2 ~ 67), Size=66, Mid=36, Set=36.
Byte 1 : Gating(2 ~ 57), Size=56, Mid=31, Set=31.
Byte 2 : Gating(2 ~ 72), Size=71, Mid=39, Set=39.
Byte 3 : Gating(2 ~ 62), Size=61, Mid=34, Set=34.
HW Byte 0 : DQS(9 ~ 42), Size 34, Offset 1, Set 24, HW_Set 29.
HW Byte 1 : DQS(5 ~ 39), Size 35, Offset 1, Set 21, HW_Set 24.
HW Byte 2 : DQS(7 ~ 42), Size 36, Offset 0, Set 24, HW_Set 27.
HW Byte 3 : DQS(11 ~ 40), Size 30, Offset 0, Set 25, HW_Set 28.
DRAM A Size = 1024 Mbytes.
请大师们帮看看这个是什么意思?
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