Samsung S23A750D - When You Monitor Black Screen

4 故障排除
4-9
4-3. When you monitor black screen (HDMI）
Sign
-当 HDMI When the wiring is connected, the power LED Is on and the screen
black screen or W/R/G/B Pattern interruption-style display.
Mainly a
checkpoint
-Scrutineering HDMI Wiring connections.
-Scrutineering LVDS The wiring is correctly connected to the Panel.
-Check 1 Layer and 2 Between connector and 60 针 FFC The wiring is
connected properly.
Diagnosis
Replace the LCD screen.
Check the power supply
status 1 Layer and 2
Connector between the
layers.
Scrutineering HDMI The
input and IC301
Circuit.
Scrutineering CN401 和 60 针
FFC Wiring.
Scrutineering +5V_Signal
Attention
Check the make sure to disconnect power before connecting the
motherboard.
Main PBA
Check the signal wiring and
否
否
是
是
在
R305
至
R312
HDMI
Output
Whether it
Check
2
层
CN401
PIN
1
~
51
Whet
The
否
是
Scrut
X501
Shock is normal?
否
是
Check
2
层
CN401
PIN
63
~
67
上
The voltage for
DC 5V
？
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