Cont:
VIZIO L32HDTV10A
No Power.
Power supply switching regulator board fault. Check the fuse on the power supply board. If found opened, check for any short circuted components, like capacitors connected in parellel to AC, Rectifier diodes [block]. If no fault found to these component/s, the main switching regulator is faulty. It will be best to replace this board as card basis, rather than making 'surgery' to it.
The power supply bard number is [DPS-199AP]. If this board is not available, [FS-P201-3M01] can be substituted.
VIZIO - VX32LHDTV10A
All other functions, picture, sound are OK, but remote control function do not works.
Check the remote control handset first for its infrared emission. The procedure to check the remote control has been given in detail in this blog. Pull up older posts. If the remote control handset is found OK. Th remote control sensor inside the set should be checked. Check for any shorted SMD capacitor/s on the infrared sensor board. In most cases one 1MKF capacitor to this board is found fault. Remove it from circuit. Even if there is no capacitor in this place, the remote control function will work properly.
VIZIO - VX42LHDV10A
No video, No sound.
Missing 24V and 12V from the power supply board. Power supply regulator board fault. Original power board to this model is [DPS-283AP]. This board can be substituted be [DPS-319AP].
VIZIO - VX37LHDTV10A
Switches ON, shows a blue screen for about 3 seconds and shuts down.
Concentrate on the condition of CCFL lamps in the panel. If any one among them is burned, this type of fault can occur.
To know about which CCFL lamp has burned, connect the pin number (15) of IC 0Z9966SN, to ground by using a 10KOhms resistor. By doing this, short circuit protection will be off. After all repair, remove this resistor from circuit. With this connection, all the back light CCFL lamps will light up, and the bad one which not lights up can be detected.
VIZIO - P42HDTV10A
Set turns ON. Has flashing "dots' all over the screen with picture.
REPLACE THE LOGIC CONTROL BOARD [077B].
No other repair should be done.
