Toshiba-Satellite-L500-LA-4982P

Toshiba Satellite L500 (Compal LA-4982P) Schematics & BIOS Bin

Motherboard Specifications

The Compal LA-4982P (KSTAA) is the primary motherboard used in the popular Toshiba Satellite L500 series laptops. These boards generally feature the Intel GM45 / PM45 chipset architecture paired with Core 2 Duo processors.

• Brand / Model: Toshiba Satellite L500
• Manufacturer: Compal
• Board Number: LA-4982P (KSTAA)
• Architecture: Intel Core 2 Duo / GM45 / PM45

Common Chip-Level Faults & Repair Notes

If you're troubleshooting a dead Toshiba L500 / LA-4982P, consider these frequent issues:

• NEC/Tokin Capacitor (Proadlizer) Failure: This era of Toshiba laptops is notorious for NEC/Tokin capacitor degradation under the CPU socket. Symptoms include the laptop shutting off abruptly under load, freezing, or only running on battery power. Replace it with 4x 330uF Tantalum capacitors.
• No Display / Black Screen: Often caused by a corrupted BIOS or a failing Northbridge (GM45/PM45). Try flashing a clean BIOS first (provided below).
• DC Jack / Power Issues: Check the input MOSFETs and the main 19V rail near the charging IC for shorts.

Free Download Section

1. Toshiba Satellite L500 (Compal LA-4982P) Schematic Diagram (.PDF)

Trace the 19V main power rail and diagnose charging or power sequence issues.

Download Schematics Free

2. Toshiba Satellite L500 (Compal LA-4982P) Boardview File

Notice: We are currently searching for this boardview.

Board View Download Free (Coming Soon)

If anyone has this boardview file for the LA-4982P, please share the link in the comments below!

3. Toshiba Satellite L500 (Compal LA-4982P) BIOS + EC Bin Download

A corrupt BIOS can cause a "no display" issue even if the hardware is fine. Below you will find the BIOS + EC bins, plus a `.rom` file option.

⚠️ Always remember: Create a backup of your original BIOS chip before programming the new bin file so you can safely revert if necessary.

Download BIOS + EC Bin

Download l500-13v.rom

Toshiba Satellite A350/A355 | KTKAA Los Angeles 10/10G LA-4571P REV 2.0

Toshiba Satellite A350 / A355 (Compal LA-4571P) Schematics & BIOS Bin

Motherboard Specifications

The Compal LA-4571P (KTKAA / Los Angeles 10/10G) is the core motherboard used in the Toshiba Satellite A350 and A355 laptop series. This architecture is based on the Intel Cantiga chipset and supports Intel Penryn processors. It comes with dedicated ATI graphics (M82 or M86).

• Brand / Model: Toshiba Satellite A350 / A355
• Motherboard Part Number: Compal LA-4571P (KTKAA / Los Angeles 10)
• Processor Support: Intel Penryn (Core 2 Duo)
• Chipset: North Bridge: Intel Cantiga | South Bridge: Intel ICH9-M
• Graphics: ATI Mobility Radeon (M82 128/256MB or M86 256/512MB)

Common Chip-Level Faults & Repair Notes

If you're troubleshooting a dead or faulty Toshiba A350/A355 (LA-4571P), keep these points in mind:

• Graphics Artifacts / No Display: The dedicated ATI graphics chip (M82/M86) is the most frequent cause of failure on this model due to thermal cycling. Reflowing or replacing the BGA chip is the standard solution.
• NEC/Tokin Capacitor Issue: Like many Toshiba laptops of this generation, this board may suffer from a failing NEC/Tokin Proadlizer under the CPU socket. If the laptop crashes randomly or shuts down under load, replace the NEC/Tokin with 4x 330uF Tantalum capacitors.
• No Power: Verify the 3.3V and 5V Always-On rails. Check the main 19V rail and the DC jack connector which can become loose over time.

Free Download Section

1. Toshiba Satellite A350/A355 (Compal LA-4571P) Schematic Diagram (.PDF)

Analyze the power sequence and track down board components with the complete Rev 2.0 schematic.

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2. Toshiba Satellite A350/A355 (Compal LA-4571P) Boardview File

Quickly locate any resistor, capacitor, or test point on both sides of the motherboard.

Board View Download Free (Coming soon)

If anyone has this board view file, please drop the link in the comments below!

Need BoardView Software? Download it Free Here.

3. Toshiba Satellite A350/A355 Clean BIOS Bin File

A corrupt BIOS can cause a "no display" issue even if the graphics chip is fine. Programming a clean BIOS is a crucial troubleshooting step.

⚠️ Always remember: Create a backup of your original BIOS chip before programming the new bin file so you can safely revert if necessary.

BIOS + EC Bin Download Free (Coming soon)

If anyone has this board bios bin file please share the link in the comment section below.

Acer Aspire 5742-compal-la-6582p-pew7181-uma

Acer Aspire 5742 Motherboard (Compal LA-6582P / PEW71) Schematics & BIOS Bin

Motherboard Specifications

The Compal LA-6582P (PEW71 UMA) is a motherboard designed for the Acer Aspire 5742 series laptops. This specific variant is an UMA architecture (Unified Memory Architecture), meaning it relies on Intel integrated graphics rather than a discrete GPU. It supports Intel Core i3 and i5 processors (Arrandale) with DDR3 RAM support.

• Board Model: Compal LA-6582P (PEW71)
• Graphics: UMA (Intel Integrated Graphics)
• Supported Models: Acer Aspire 5742, 5742Z
• Platform: Intel Arrandale

Common Chip-Level Faults & Repair Notes

When troubleshooting a dead or no-display Acer Aspire 5742 (LA-6582P board), check these common failure points:

• No Power (19V Short): Verify the main 19V rail. Shorted ceramic capacitors near the CPU VRM are a common issue on this board.
• 3V/5V Standby: Check if the standby IC is generating the ALW 3.3V and 5V. If 3.3V is missing and the IC is hot, the KBC/EC may be shorted.
• Turns on but No Display: Often caused by a corrupted BIOS or issues with the CPU core voltage (VCC_CORE). Reflashing the BIOS/EC is the recommended first step.

Free Download Section

1. Acer Aspire 5742 (LA-6582P) Schematic Diagram (.PDF)

Use this schematic diagram to trace power lines, signals, and component pinouts for chip-level diagnostics.

Schematics Download Free

2. Acer Aspire 5742 (LA-6582P) Boardview File

A boardview helps locate component designations and traces physically on the board.

Board View Download Free (Coming soon)

If anyone has this board view file, please comment the link below!

If you don't have BoardView Software, download it here: Board Viewer Software Free Download

3. Acer Aspire 5742 Clean BIOS + EC Bin File

Working SPI Flash dump to resolve no-display, fan spinning at full speed, and power loop issues.

Always remember: Backup your old BIOS chip and save it to a USB or hard drive before flashing.

BIOS + EC Bin Download Free