: The "94V-0" or "101V-0" print on the circuit board is a standard UL 94 plastic flammability rating. It indicates that the fiberglass substrate self-extinguishes within 10 seconds during a vertical burn test.
Official schematics for the (often listed as 101VO ) power supply are not publicly hosted by the manufacturer, as they are typically proprietary service documents. This board is commonly found in older LCD monitors and arcade equipment.
: Standard linear regulators (often 7805 for +5V and 7812 for +12V) that maintain a steady output voltage.
| Step | Action | Result/Outcome | | :--- | :--- | :--- | | 1 | Replaced the primary side's to resolve a primary side fault. | The fault on the primary side was fixed. | | 2 | After fixing the primary side, the board still had 0V output (secondary side fault). | A secondary side fault was diagnosed. | | 3 | Checked SMD resistors, diodes, and capacitors on the secondary side; all seemed OK. | Some components did not have any reading, suggesting potential missing or faulty SMD capacitors . |
: The board features four independent transistor switch circuits labeled out1 through out4 .
: The "94V-0" or "101V-0" print on the circuit board is a standard UL 94 plastic flammability rating. It indicates that the fiberglass substrate self-extinguishes within 10 seconds during a vertical burn test.
Official schematics for the (often listed as 101VO ) power supply are not publicly hosted by the manufacturer, as they are typically proprietary service documents. This board is commonly found in older LCD monitors and arcade equipment. wannien 101v0 power supply schematic
: Standard linear regulators (often 7805 for +5V and 7812 for +12V) that maintain a steady output voltage. : The "94V-0" or "101V-0" print on the
| Step | Action | Result/Outcome | | :--- | :--- | :--- | | 1 | Replaced the primary side's to resolve a primary side fault. | The fault on the primary side was fixed. | | 2 | After fixing the primary side, the board still had 0V output (secondary side fault). | A secondary side fault was diagnosed. | | 3 | Checked SMD resistors, diodes, and capacitors on the secondary side; all seemed OK. | Some components did not have any reading, suggesting potential missing or faulty SMD capacitors . | This board is commonly found in older LCD
: The board features four independent transistor switch circuits labeled out1 through out4 .