#NVIDIA Shield Android TV - Reverse Engineering
| J501 pin | description | mainboard pin |
|---|---|---|
| 1 | GND | R7 |
| 3 | RTL8153 USB D+ (Pin 23) | Q7 |
| 5 | RTL8153 USB D- (Pin 22) | P7 |
| 7 | GND | X11 |
| 9 | USB Jack J6 SSRX- (Pin 8) | W11 |
| 11 | USB Jack J6 SSRX+ (Pin 9) | W12 |
| 13 | GND | X12 |
| 15 | USB Jack J5 D- (Pin 2) | X13 |
| 17 | USB Jack J5 D+ (Pin 3) | W13 |
| 19 | GND | S12 |
| 21 | USB Jack J5 SSRX- (Pin 8) | T11 |
| 23 | USB Jack J5 SSRX+ (Pin 9) | T12 |
| 25 | GND | V13 |
| 27 | USB Jack J7 OTG D- (Pin 2) | U12 |
| 29 | USB Jack J7 OTG D+ (Pin 3) | U13 |
| 31 | GND | Q6 |
| 33 | HDMI Jack J3 Data 0 + (Pin 7) | Q5 |
| 35 | HDMI Jack J3 Data 0 - (Pin 9) | Q4 |
| 37 | GND | P4 |
| 39 | HDMI Jack J3 Data 1 + (Pin 4) | P5 |
| 41 | HDMI Jack J3 Data 1 - (Pin 6) | O5 |
| 43 | GND | P6 |
| 45 | HDMI Jack J3 Data 2 + (Pin 1) | O6 |
| 47 | HDMI Jack J3 Data 2 - (Pin 3) | N6 |
| 49 | GND | N5 |
| 51 | HDMI Jack J3 Clock + (Pin 10) | O4 |
| 53 | HDMI Jack J3 Clock - (Pin 12) | N4 |
| 55 | GND | U5 |
| 57 | Voltage ? | T5 |
| 59 | Voltage ? | T6 |
| 61 | Voltage ? | V6 |
| 63 | -> Q7 (Pin 2); Q7 (Pin 3) -> J502 (Pin 8) (Levelshifting ?) | W10 |
| 65 | -> Q6 (Pin 2); Q6 (Pin 3) -> J502 (Pin 4) (Levelshifting ?) | U6 |
| 67 | U4 (Pin 3 and 4) (High Side USB Current Switch?) | W9 |
| 69 | U5 (Pin 3 and 4) (High Side USB Current Switch?) | W8 |
| 71 | Q4 (Pin 1) (Levelshifting ?) | X8 |
| 73 | Q8 (unpopulated) (Levelshifting ?) | X9 |
| 75 | GND | N8 |
| 77 | USB Jack J6 D- (Pin 2) | N7 |
| 79 | USB Jack J6 D+ (Pin 3) | O7 |
| J501 pin | description | mainboard pin |
|---|---|---|
| 2 | GND | X5 |
| 4 | microSD slot RSV/DAT1 (Pin 8) | W4 |
| 6 | microSD slot MISO/DAT0 (Pin 7) | X4 |
| 8 | microSD slot CLK (Pin 5) | W5 |
| 10 | microSD slot MOSI/CMD (Pin 3) | X6 |
| 12 | microSD slot CS/DAT3 (Pin 2) | V5 |
| 14 | microSD slot RSV/DAT2 (Pin 1) | W6 |
| 16 | D502 (open ?) | V7 |
| 18 | GND | V4 |
| 20 | -> Q5 (Pin 2); Q5 (Pin 3) -> J502 (Pin 7) (Levelshifting ?) | V11 |
| 22 | U6 Pin 1 (Function ?) | V10 |
| 24 | J502 (Pin 2) | X10 |
| 26 | J7 OTG ID (Pin 4, through diode) | U10 |
| 28 | HDMI Jack J3 CEC (Pin 13) | S6 |
| 30 | HDMI Jack J3 Hot Plug Detect (Pin 19) | S5 |
| 32 | HDMI Jack J3 DDC Data (Pin 16) | R6 |
| 34 | HDMI Jack J3 DDC Clock (Pin 15) | R5 |
| 36 | Power Button J502 (Pin 6) | S11 |
| 38 | ? | R12 |
| 40 | ? | Q12 |
| 42 | ? | P13 |
| 44 | GND | U11 |
| 46 | SATA Jack J504 (Pin 16, AC coupled) | O11 |
| 48 | SATA Jack J504 (Pin 15, AC coupled) | O12 |
| 50 | GND | R11 |
| 52 | SATA Jack J504 (Pin 19, AC coupled) | N12 |
| 54 | SATA Jack J504 (Pin 18, AC coupled) | N13 |
| 56 | GND | O13 |
| 58 | USB Jack J6 SSTX+ (Pin 6, AC coupled) | P11 |
| 60 | USB Jack J6 SSTX- (Pin 5, AC coupled) | P10 |
| 62 | GND | Q11 |
| 64 | USB Jack J5 SSTX+ (Pin 6, AC coupled) | N10 |
| 66 | USB Jack J5 SSTX- (Pin 5, AC coupled) | O10 |
| 68 | GND | N11 |
| 70 | RTL8153 USB SSRX+ (Pin 14) | N9 |
| 72 | RTL8153 USB SSRX- (Pin 15) | O9 |
| 74 | GND | O8 |
| 76 | RTL8153 USB SSTX- (Pin 19) | P8 |
| 78 | RTL8153 USB SSTX+ (Pin 18) | Q8 |
| 80 | GND | P9 |
| marking | meaning |
|---|---|
| x | non existing pads on mainboard |
| u | no connection on flat flex cable (unconnected) |
| o | pad on mainboard but no spring on connector (open) |
| g | ground pads (more on mainboard than pins on J501) |
| N | O | P | Q | R | S | T | U | V | W | X | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 13 | 54 | g | 42 | u | x | x | x | 29 | g | 17 | 15 |
| 12 | 52 | 48 | u | 40 | 38 | g | 23 | 27 | g | 11 | g |
| 11 | g | 46 | 58 | g | g | 36 | 21 | g | 20 | 9 | g |
| 10 | 64 | 66 | 60 | u | o | x | x | 26 | 22 | 63 | 24 |
| 9 | 70 | 72 | g | u | x | x | x | x | g | 67 | 73 |
| 8 | g | g | 76 | 78 | x | x | x | x | g | 69 | 71 |
| 7 | 77 | 79 | 5 | 3 | g | x | x | x | 16 | g | g |
| 6 | 47 | 45 | g | g | 32 | 28 | 59 | 65 | 61 | 14 | 10 |
| 5 | g | 41 | 39 | 33 | 34 | 30 | 57 | g | 12 | 8 | g |
| 4 | 53 | 51 | g | 35 | x | x | x | u | g | 4 | 6 |