Samsung S23A750D - When the Power Supply Is Not Available

4 故障排除
4-2
4-2 When the power supply is not available
Sign
-After connecting the power supply turn on the power button, the front of
the monitor LED is not running.
Mainly a
checkpoint
-Check the screens at the back of the monitor power switch is turned on.
-Check whether the adapter and connector are connected correctly.
-Check that the connector is properly connected to the 1 And 2 Between
the layers.
Diagnosis
Replace the motherboard
Attention
Check the make sure to disconnect power before connecting the
motherboard.
Main PBA – 1st Floor_Top
否
否
是
是
第
2
On the power
IC
Is there a normal
第
1
Layer
2
Between key
6
、
7
和
8
V
14
？
Check
2
Layer
IC501
、
IC502
、
IC505
和
IC506
Related circuits
If necessary,
2
Floor
Check
1
Layer
2
Layer
CN100
Related
否
是
第
2
On a
CN504
PIN
2
和
3
Volta
为
V
0
Pipe
1
The voltage is a
DC14V
？
Replace the adapter and check
Check component connection
否
是
第
1
On the power
IC
Is there a normal
Check
1
Layer
IC201
、
IC202
、
IC203
、
IC204
、
Q208
和
Q630
Related circuits and,
Replace
1
Floor