), here are the key features you will find when looking at the VA/Video sections of the schematic: Key Sections in ILPI-354 Schematic Input Stage (DVI/VGA): The schematic details the signal path for VGA and DVI inputs , including
If you have found a different schematic discrepancy on your specific revision, drop a note in the comments below to help the repair community! ilpi354 va schematic upd
This wire connects to the Drain pin of the original MOSFET or the primary winding of the transformer that connects to the high-voltage side. ), here are the key features you will
: Reports from repair forums suggest checking the 9th leg of the LED driver for a burned SMD resistor; while some revisions use , others have successfully used for stability. Voltage Rails : Standard output to the backlight is typically around Board Identification : Look for PCB numbers such as 491A011H1400H03 491A011H1400H06 to ensure schematic compatibility. Troubleshooting & Modification Tips No Power/Backlight Voltage Rails : Standard output to the backlight
In its original incarnation (Rev 1.x), the ILPI354 was a straightforward with a built-in power-good timer. Its job was simple:
| Function | Old Schematic Ref | Updated Board Ref (Check) | | :--- | :--- | :--- | | | PIN 5 on CN801 | PIN 7 on CN801 | | Dimming Signal | PIN 6 | PIN 9 | | 3.3V Standby | L803 | L805 (Moved near USB ports) |