JamesGecko
New member
LCD EDP connector has been changed.
i 've checked on 3 LCD A1932 -> same result.
Hdmi is working.
Here are the measurements I took on the LCD / backlight section:
PP5V_S0SW_LCD = 5 V
PP3V3_S0SW_LCD = 3.3 V
EDP_PANEL_PWR_BUF_EN = 3.3 V
PPVOUT_S0_LCDBKLT = 0 V
PPVOUT_S0_LCDBKLT_F = 0 V
Q8400:
PPVIN_S0SW_LCDBKLT = 0 V
PPVIN_S0SW_LCDBKLT_F = 12 V
PPVIN_S0SW_LCDBKLT_R = 12 V
U8400:
BKLT_EN_R = 0 V
VVDD = 5 V
VVDA = 5 V
EDP_BKLT_EN = 0 V (not shorted)
R8451 /R450= 0ohm,
I2C_BKLT_SCL = 4.8V no pulsing
I2C_BKLT_SDA = 4.8V no pulsing
i 've checked on 3 LCD A1932 -> same result.
Hdmi is working.
Here are the measurements I took on the LCD / backlight section:
PP5V_S0SW_LCD = 5 V
PP3V3_S0SW_LCD = 3.3 V
EDP_PANEL_PWR_BUF_EN = 3.3 V
PPVOUT_S0_LCDBKLT = 0 V
PPVOUT_S0_LCDBKLT_F = 0 V
Q8400:
PPVIN_S0SW_LCDBKLT = 0 V
PPVIN_S0SW_LCDBKLT_F = 12 V
PPVIN_S0SW_LCDBKLT_R = 12 V
U8400:
BKLT_EN_R = 0 V
VVDD = 5 V
VVDA = 5 V
EDP_BKLT_EN = 0 V (not shorted)
R8451 /R450= 0ohm,
I2C_BKLT_SCL = 4.8V no pulsing
I2C_BKLT_SDA = 4.8V no pulsing