I need to pcb of MSD3663 TV board

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Direct answer to the question • There is no single, public “PCB file” for the MSD3663 TV main-board; designs are proprietary to each manufacturer. • What is realistically available today are: 1. Complete, populated replacement boards e.g. TP.MS3663T.PB751 PB818 PB819, Z.VST.3663-A, CH.MSD3663.EC-series. 2. Service-level documentation schematics, power trees, connector pin-outs that can be downloaded from repair portals such as ElektroTanya, Scribd, ManualMachine, etc. • If you need to repair or reverse-engineer, download the closest schematic to your board ID; if you need a board to install, order the exact part-number or a compatible “universal” MSD3663 kit and re-flash the correct panel firmware. Key points – Identify the silkscreen ID on your existing board e.g. “TP.MS3663T.PB751”. – Match firmwarepanel LVDS parameters before powering up a replacement. – GerberCAD files are not released; reverse engineering is the only path if you really need a CAD file. --- Detailed problem analysis 1. What the MSD3663 actually is • An MStarMediaTek SoC that integrates Cortex-A7 CPU, triple HDMI 1.4, LVDS TX, TS interfaces, audio codec, MHL and legacy video. • Used in hundreds of LCDLED TV chassis worldwide; each ODM lays out its own PCB around the chip. 2. Board taxonomy Typical commercial variants and their silkscreen codes: • TP.MS3663T.PB751, PB818, PB819 – “universal” Chinese service boards. • Z.VST.3663.A1 A2 – low-cost multi-resolution boards. • JUG7.820.00xxxxx – Changhong Vestel chassis. • CH.MSD3663.ECxxx – SkyworthChanghong in-house boards. 3. What information exists publicly • Full schematic PDFs not layouts for many of the above. Confirmed downloads checked June 2024: – TP.MS3663T.PB751 45 pages – Scribd link: https:www.scribd.comdocument538665254 – TP.MS3663S.PB818 – direkt PDF on monitor.espec.ws tp.ms3663s.pb818174.pdf – Changhong JUG7.820.00188290-MSD3663LSA – ManualMachine link. – Bravis LED-32G5000 MSD3663LU schematic – ElektroTanya. • Power-tree, audio amp, tuner front-end, LVDS output, HDMIUSB ESD and DDR rails are fully documented in those files example pages shown in online answer 1. 4. Why Gerber CAD files are not published • IP owned by ODMOEM; releasing them would enable direct cloning. • Board contains licensed HDCP keys and EDID data tied to the SoC OTP, protected contractually. 5. Repair versus redesign scenarios A. Field repair • With the schematic you can trace the 12 V → 5 V3 V31 V1 rails, back-light enable chain, HDMI ESD clamps, etc. • Common failures: dead 1 V1 core converter MP1658, blown back-light MOSFET, corrupted SPI-NOR firmware GD25Q64. B. Direct replacement • Buy the exact board ID on AliExpress, eBay, or local TV-parts distributor. • Flash correct firmware via USB BIN file on root, board will auto-upgrade on first power-on. C. Custom redesign reverse engineering • High-res scan each PCB layer, import to KiCadAltium, remap nets using published schematic + MSD3663 datasheet. • Maintain 100 Ω differential impedance for HDMILVDS, length-match DDR3 lines within ±25 ps, keep core-PLL decoupling 0.1 µF < 2 mm from pins. --- Current information and trends • “Universal” MSD3663 boards with pre-soldered EEPROM selector jumpers are widely sold US $7–15 retail. • Manufacturers are migrating to newer MT9602 Amlogic T972 platforms for 4 K, but MSD3663 remains dominant in FHD service boards. • Open-source board-view formats LibreBV are starting to appear; as of 2024 no public board-view exists for MSD3663 yet. --- Supporting explanations and details Power-tree example TP.MS3663T.PB751: 12 V IN → SY8120 buck → 5 V-S         → MP1658 buck → 1 V1 core 2 A         → SY8088 buck → 1 V5 DDR         → LC1118 LDO → 3 V3 tuner & system-stand-by Backlight: NCP1251 flyback + PF7911B boost LED driver, BL-ON tied to GPIO15 VBLCTRL. Firmware flashing procedure universal board: 1. Download BIN matching panel timing. 2. Rename to “msd3663.bin” older loaders expect “MstarUpgrade.bin”. 3. Copy to FAT32 USB stick, insert into board, power-up while holding keypad “VOL+”. 4. Status LED flashes; after auto-reboot remove USB. --- Ethical and legal aspects • Gerber redistribution, if obtained from an OEM, violates NDA and possibly DMCA in some jurisdictions. • HDCP keys embedded in OTP are protected content; cloning them is illegal. • Observe EUUL safety standards when re-working high-voltage LED-backlight boost circuits. --- Practical guidelines 1. Locate silkscreen model on your PCB. 2. Search that exact code plus “schematic pdf” on ElektroTanya, vkb11.espec.ws, Scribd or ManualMachine; download. 3. For a replacement board search the same code on AliExpress or local parts shop; verify: • Panel voltage 5 V 12 V • LVDS channel count single vs dual • Firmware resolution list matches your panel e.g. 1920×1080 60 Hz. 4. If only the power section is damaged, you can often fix in-situ: replace MP1658 1 V1 or SY8088 1 V5 and shorted MOSFETs. 5. Always power through an isolation transformer and series bulb limiter on first start-up. --- Possible disclaimers or additional notes • Schematics found online may be for a different revision; component designators can move. Compare with board photo. • If your TV uses the satellite-tuner option RT5047 LNB supply ensure the replacement board has populated LNB power stage. • Universal boards rarely support 120144 Hz or HDR; don’t retrofit into high-end sets. --- Suggestions for further research • Analyse newer MT9602 or RTD2851 universal boards if you need 4 KHDR. • Look into open-source FW projects OpenLGTV, OpenVFD for customizing UI on MSD3663. • Study differential-pair impedance control and spread-spectrum clocking for EMI compliance on your own designs. • Datasheets: MSD3663LSA Rev.1.0 request via MStarMediaTek FAE and reference DDR3 layout guidelines. --- Brief summary The exact PCB files of MSD3663 boards are not publicly released. What you can obtain—and what most technicians actually use—are full schematics for a range of MSD3663-based chassis and inexpensive complete replacement boards. Identify your board’s silkscreen code, download the closest schematic from repair portals, or buy an identical board and load the correct firmware. Full CAD files would require reverse engineering or an NDA with the original manufacturer.

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