Samsung MM-DA25 - Checkpoints by Error Mode

4-2 Samsung Electronics
Troubleshooting
4-1 Checkpoints by Error Mode
4-1-1 No Power
Check for
POWER-SENSE (5V) in
MAIN PCB PCW3 pin 11
MAIN PCB PCW3 Pin 10
voltage (5.60V)?
Check VFD Voltage in
MAIN PCB PCW3
pin 15, 14, 13
CHECK or REPLACE SMPS
CHECK or REPLACE SMPS
Yes
No
Yes
No
Yes
No
The power does not turn on.
Check for RESET/OSC parts in Main
PCB: X-TAL1, UQ1
CHECK or REPLACE SMPS