4-1-1. No Power
N Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
Symptom
The LEDs on The front panel do not work when connecting The power cord. -
The SMPS relay does not work when connecting The power cord. -
The units appears to be dead. -
Major
checkpoints
The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are
improperly connected or the Main Board or SMPS is not functioning. In this case, check the following:
Check the internal cable connection status inside the unit. -
Check the fuses of each part. -
Check the output voltage of SMPS. -
Replace the Main Board. -
Diagnostics
MAIN BOARD
SMPS BOARD
T-CON
Power indicator LED is on?
Yes
Please, Contact tech support.
Check ‘Power IC output of Main Ass'y’ ?
L202 : B3.3V / L203 : B1.2V
L204 : B1.1V / L201 : B1.5V
IC203 : 3.3V / IC208 : 3.3V
Yes
Check Power of ‘T-con b’d’ ?
- L9(T-CON) : VCC12
- TP_VCC33 : VCC33
Yes
Check Input power of ‘T-con b’d’ ?
- F11(T-CON) : B13V
Yes
Check a connetion power code.
Change the Main Ass'y.
Change the T-con B’d.
Reconnect or Change.
the LVDS cable.
Change 20p cable.
Change Main Power Ass'y.
Check the backlight on,
when 20p cable unconnected ?
Yes
Check ‘Stand-By 5V’ ?
- BD203 : A5V
Yes
Check ‘Power input of Main Ass'y’ ?
- BD206 : B18VS
- BD207/208/209 : B13V
- BD201 : B5V
Yes
No
No
No
No
No
No
No
Caution Make sure to disconnect the power before working on the IP board.
To Next Page
Loading...
