03 — Component BOM
Component Inventory by Zone
Zone A — Connectors
| Ref |
Type |
Part |
Function |
Confidence |
| J1 (HDMI) |
HDMI Type A Female |
Standard 19-pin |
Video/audio output to TV |
CONFIRMED |
| J2 (USB) |
Micro-USB Type B Female |
Standard 5-pin |
5V DC power input |
CONFIRMED |
| J450 |
Reference near USB |
Power/signal designator |
Power input circuit ref |
CONFIRMED |
Zone B — EMI Shielded Areas
| Ref |
Shield Label |
Inferred Contents |
Function |
Confidence |
| Shield-TA |
"TA" (upper, near HDMI) |
BCM43569 WiFi/BT combo IC |
2.4/5GHz WiFi + BT 4.1 |
INFERRED |
| Shield-SoC |
Large center shield |
MT8127D SoC + Samsung 1GB LPDDR3 + Toshiba 8GB NAND |
Main processing + memory stack |
INFERRED |
| Shield-PMU |
Small bottom shield |
PMIC (power management IC) |
Power regulation |
INFERRED |
Zone C — Exposed ICs
| Ref |
Package |
Part |
Function |
Confidence |
| U952 |
Small SOT/QFN |
Unknown small IC |
Power conditioning or signal buffer |
CONFIRMED (ref) / UNKNOWN (part) |
Zone D — Passives (visible, bottom side)
| Ref |
Type |
Value/Code |
Function |
Confidence |
| L700 |
SMD Inductor (wire-wound) |
~1–4.7µH est. |
DC-DC converter output filter |
CONFIRMED (ref) / ESTIMATED (value) |
| C (blue) |
Ceramic capacitor 0402/0603 |
~100nF–10µF |
Decoupling / bulk cap |
CONFIRMED (visible) |
| Multiple R/C |
0402 SMD passives |
Various |
Biasing, filtering, decoupling |
CONFIRMED (visible) |
Zone E — Test Points
| Location |
Likely Net |
Notes |
| 2x pads near Micro-USB (top side) |
UART TX/RX or JTAG |
Common debug header location for MT8127D platforms |
| Yellow dot bottom side |
GND test point |
Standard manufacturing test point |
Zone F — Antenna
| Type |
Location |
Band |
Confidence |
| PCB trace antenna |
Near HDMI end, under "TA" shield area |
5GHz WiFi |
INFERRED |
| PCB trace antenna (×2) |
Near HDMI end |
2.4GHz WiFi + BT shared |
INFERRED |
Zone G — Power Circuit
| Component |
Location |
Function |
Confidence |
| Micro-USB input |
Left end |
5V @ 1A input |
CONFIRMED |
| PMIC |
Under bottom shield |
Buck/LDO regulation |
INFERRED |
| L700 + nearby caps |
Bottom side, USB area |
Switching regulator LC filter |
CONFIRMED |
ESD / Signal Conditioning (near HDMI)
| Ref |
Package |
Likely Part |
Function |
Confidence |
| Near HDMI (black rectangular, image 2) |
Small black SOT/SC |
TVS diode array (e.g. PRTR5V0U2X) |
HDMI ESD protection |
ESTIMATED |
Note on "IHD": The black rectangular component visible in the side-view photo
between the main EMI shield and the HDMI connector is most likely an HDMI ESD protection
array or ferrite EMC component. It is not a standard published reference designator —
"IHD" does not appear in FCC filings for this device. If this is a silkscreen label
visible under magnification, please provide a macro shot of that specific area for
definitive identification.
Full Summary Table
| Ref |
Type |
Part Number |
Function |
Confidence |
| U_SoC |
ARM SoC |
MediaTek MT8127D |
Quad-core 1.3GHz A7, Mali-450 GPU, HDMI 1.4 out |
INFERRED |
| U_WiFi |
WiFi/BT |
Broadcom/Infineon BCM43569 |
802.11ac 2x2 + BT 4.1 |
INFERRED |
| U_RAM |
LPDDR3 |
Samsung K4EBE304EB-EGCG (1GB) |
System RAM |
INFERRED |
| U_NAND |
NAND Flash |
Toshiba TH58TEG8DDJBA8C (8GB) |
OS + app storage |
INFERRED |
| U_PMIC |
PMIC |
Unknown (likely MediaTek MT6323 class) |
Power management |
ESTIMATED |
| U952 |
Small IC |
Unknown |
Signal/power conditioning |
CONFIRMED (ref) |
| L700 |
Inductor |
~1–4.7µH |
DC-DC filter |
CONFIRMED (ref) |
| J1 |
HDMI Type A |
Standard |
Video output |
CONFIRMED |
| J2 / J450 |
Micro-USB |
Standard |
Power input |
CONFIRMED |
| ANT × 3 |
PCB trace |
Built-in |
2×2.4GHz + 1×5GHz |
INFERRED |
Authored: Albert Lane + Claude Sonnet 4.6 · SovereignAudits™ · 2026-06-10