La-c701p Rev 1.0 Boardview
Yes, indirectly. By locating the 3.3V and 5V rails, you can inject external power to the SIO and PCH to attempt a firmware recovery or to spin the HDD (if the drive is not NVMe).
Check if the file extension is hidden (e.g., .brd.pdf). Rename it. Also ensure the file is not corrupted – try opening it in a text editor; if you see garbage binary, it’s likely a valid file. If you see HTML code, you downloaded a fake.
The LA-C701P Rev 1.0 is a challenging but repairable board. Without the boardview, you are flying blind—probing random pins and hoping for the best. With it, you can systematically diagnose failed power rails, missing clocks, and corroded lines.
Pro Tip: Open the boardview on one monitor and the PDF schematic on the other. Use the schematic to understand the logic and the boardview to execute the physical repair.
Do you have a LA-C701P board with a specific error code (e.g., "7-beeps" or no power)? Share your symptoms in the comments below.
Disclaimer: This article is for educational purposes. Always use appropriate ESD protection and soldering equipment when working on live PCBs.
Title: REQUEST/INFO: La-c701p Rev 1.0 Boardview (.brd or .fz)
Body:
Hi everyone,
I’m looking for the Boardview file for a Lenovo La-c701p Rev 1.0 motherboard.
Background: This board is commonly found in the Lenovo Ideapad 300-15ISK / 300-17ISK series (Sky Lake / Kaby Lake). I have a unit with a no-power condition (20V present, no 3V/5V rails). I suspect a corroded EC or a missing SMC_ON/OFF signal, but without the .BRD file, tracing the power sequence is taking forever.
What I’m looking for:
What I have so far:
Does anyone have the Boardview file? Even a low-quality one or a CAD drawing would save hours of beeping. La-c701p Rev 1.0 Boardview
Also willing to trade: I have Boardview for LA-D101P, LA-C422P, and several Compal boards.
Thanks in advance!
[Attach a photo of the board bottom side here if possible]
Alternate version if you are SHARING the file (not requesting):
Title: [FOUND] La-c701p Rev 1.0 Boardview + Schematic
Body:
Here are the working files for Lenovo Ideapad 300-15ISK (LA-C701P Rev 1.0) .
Included:
Symptoms this helps with:
Verified working components location:
Download Link: [Insert Google Drive / Badcaps attachment link]
Tools needed:
Please re-upload if the link dies. Do not sell this file – it’s for the repair community. Yes, indirectly
The LA-C701P Rev 1.0 (also known by codenames AHL50 and ABL52) is a motherboard manufactured by Compal Electronics for 5th generation HP laptops, including the HP Pavilion 15-AC, 15-AY, 250 G4, and 250 G5 series. A Boardview file is a specialized digital document used by repair technicians to visualize the physical layout of components, test points, and traces on a printed circuit board (PCB), allowing them to trace signals and locate faulty parts. Core Technical Architecture
The LA-C701P is built around the Intel Broadwell platform, specifically utilizing Ultra-Low Voltage (ULV) processors such as the Core i5-5200U or i5-5300U. These CPUs are BGA-mounted (soldered directly to the board) and feature integrated graphics (UMA), though some variants support discrete AMD Radeon graphics.
Memory Support: Features two DDR3L SO-DIMM slots supporting up to 16 GB of 1.35V 1600MHz RAM in dual-channel configuration.
Storage Interfaces: Includes SATA 3.0 ports for a 2.5" HDD/SSD and an optical disc drive (ODD).
Connectivity: Integrated Realtek 8166EH Ethernet, Mini-PCIe for WLAN modules, and USB 3.0 support.
Display Output: Supports eDP (Embedded DisplayPort) for internal panels and HDMI for external displays. The Role of Boardview in Troubleshooting
Because laptop motherboards are multi-layered and densely packed, identifying which pin on an IC (Integrated Circuit) connects to which capacitor is impossible with the naked eye. The LA-C701P Boardview provides:
Component Identification: Maps every resistor, capacitor, and inductor by its reference designator (e.g., PL302, PC110).
Net Tracing: Allows a technician to click a pin and see every other point on the board that shares that same electrical "net" (e.g., +3VALW or +1.35V_DDR).
Signal Pathways: Critical for diagnosing "No Power" or "No Display" issues by verifying the Power On Sequence. Common Repairs and Issues
Technicians frequently use the LA-C701P Boardview and its accompanying Schematic Diagram (available on Scribd or Slideshare) to solve the following common faults: schematics|boardviews| ARCHIVE 💻💻 – Telegram
The hum of the ultrasonic cleaner was the only pulse in the cramped workshop. On the anti-static mat lay the patient: a Dell Latitude motherboard, model LA-C701P Rev 1.0 . It was cold, lifeless, and stubbornly silent.
Elias adjusted his magnifying loupe. He had already checked the basics. The DC jack was tight. The 19V rail was present at the first MOSFET, but it stopped there like a traveler at a locked gate. To find the culprit, he needed more than a multimeter; he needed the map. He double-clicked a file on his workstation. The The LA-C701P Rev 1
blossomed across his screen—a digital skeleton of copper traces and silicon islands.
His eyes scanned the grid. He navigated to the power management section, tracing the signal lines from the charging IC. On the physical board, the components were tiny grains of sand, but on the screen, they were labeled, organized, and color-coded. He clicked on a pad near the BIOS chip. Instantly, the software highlighted every interconnected point on the board in a vibrant yellow. "There you are," Elias whispered.
A tiny ceramic capacitor, labeled PC108, was highlighted. In the physical world, it looked perfect—no scorch marks, no cracks. But the Boardview showed it was tied directly to a critical 3.3V "always-on" rail. If that capacitor had failed short to ground, the entire startup sequence would stay paralyzed. He switched his multimeter to continuity mode.
The sound was flat and final. The capacitor was a bridge to nowhere.
With a steady hand, Elias applied a bead of flux. He brought his hot air station to temperature, the wind whistling softly through the nozzle. With a surgical flick of his tweezers, the faulty component was gone. He cleaned the pads and soldered a fresh replacement from a donor board, verifying the orientation against the digital map.
He plugged in the power adapter. A tiny green LED flickered to life. He pressed the power button, and the cooling fan gave a triumphant spin. On the monitor, the Dell logo brightened the darkness.
Elias leaned back, the blue light of the Boardview still reflecting in his glasses. The map had led him home.
🛠️ Technical Breakdown: LA-C701P (Dell Latitude E5450/E5550)
If you are using the Boardview for a real repair, keep these common failure points in mind for this specific revision: Power Rails: generated by the TPS51225RDCR (PU100). Charging Circuit:
The BQ24777 (PU300) often fails if a non-genuine or damaged power adapter is used. Common Shorts:
Look closely at the capacitors near the CPU/PCH heatsink area; high heat often causes them to degrade over time.
To help you further with your repair or project, let me know: Are you dealing with a No Display Do you have the to go along with the Boardview? Boardview software are you using (OpenBoardView, Allegro, etc.)? if you're stuck!
To effectively use the LA-C701P Rev 1.0 boardview, invest in these tools: