E82152 Schematic 2021 Site

The code E82152 refers to a UL (Underwriters Laboratories) file number rather than a specific product or schematic. This number is registered to Gold Circuit Electronics Ltd., a company that manufactures printed circuit boards (PCBs).

Because "E82152" identifies the PCB manufacturer and its safety certification rather than the device's circuitry, there is no single "E82152 schematic." A schematic for a board marked with this number would belong to the specific device it was built for (such as a TV, appliance, or industrial controller). Key Details for E82152

Manufacturer: Gold Circuit Electronics Ltd. is the holder of this UL file.

Purpose: The marking on your board signifies that the bare PCB meets UL safety standards for flammability and manufacturing quality. e82152 schematic 2021

Common Applications: PCBs from this manufacturer are used in a wide range of electronics. To find a 2021 schematic, you should look for the model number of the device itself (e.g., "Sony Bravia [Model] service manual" or "Samsung [Model] board diagram"). How to Find the Correct Schematic

To find the actual circuit diagram for your board, look for these alternative markings:

Board Model Number: Often printed in white silkscreen (e.g., "P/N: 123456" or "Model: XYZ-V1"). The code E82152 refers to a UL (Underwriters

Chassis Number: Common in televisions and monitors (e.g., "TP.MS338.PB801").

Component Labels: If you are troubleshooting a specific part, search for the part numbers of the largest chips on the board.

For official certification details, you can verify the status of this file on the UL Product iQ database. Overview

Could you provide the name or model number of the device this board came from? This will help in locating the specific 2021 schematic you need. E82152 for GOLD CIRCUIT ELECTRONICS LTD | UL Solutions

Overview

• Subject: schematic for device/model "e82152" (assumed electronics PCB or module), referenced to year 2021.
• Purpose: summarize schematic contents, key circuits, connectivity, and recommendations for documentation and troubleshooting.

1. The Op-Amp Swap (LM324 → LM2902)

Previous revisions used the standard LM324. The 2021 schematic explicitly shows the LM2902. Why? The LM2902 offers an extended temperature range (-40°C to +125°C) and better input offset voltage drift. If you replace an LM2902 with an LM324 in a 2021 board, you will experience thermal runaway above 70°C.

Is the 2021 Schematic Still Relevant?

Yes. While newer 2024 models use highly integrated "system-on-chip" (SoC) boards with no serviceable components, the e82152 schematic 2021 represents the last generation of moderately repairable TVs. The industry is shifting toward "board swapping" due to cheap replacement modules ($20-$40 for a used E82152 board). However, if you are an environmental recycler or a cost-conscious repair shop, mastering this schematic can save hundreds of boards from e-waste.

Assumptions made

• "e82152" is an electronic circuit board or module identifier; no manufacturer or complete datasheet provided.
• Schematic version is from 2021.
• Focus is on typical schematic elements: power, clock, MCU/logic, analog, RF/I/O, connectors.