TP Nets
This page lists and describes the purposes of the testpoints accessible on a 3DS's circuit board.
Old 3DS
The signals were figured out using a PicoScope 2206B running at 20 MS/s, ±5 V, 8-bit, 1:10, DC.
| TP | Net Name | U[V] | A/O/S (1) | A/D/P/G|PP/OC/PU/PD|R/T (2) | Domain | f[Hz] | Description |
|---|---|---|---|---|---|---|---|
| TP1 | GND | A | Charger | - | |||
| TP2 | +1.2V | 1.2V | O | P | ? | - | |
| .. | |||||||
| TP4 | Uchrg | 5V | A | P | Charger | - | |
| .. | |||||||
| TP7 | +1.8V | 1.8V | A | P | ? | - | |
| TP8 | Ubat | 3.5V-3.8V | A | P | Battery | - | |
| .. | |||||||
| TP10 | +1.8V | 1.8V | A | P | ? | - | |
| TP11 | +1.8V | 1.8V | A | P | ? | - | |
| TP12 | +3.5V | 3.8V | O | P | ? | - | |
| .. | |||||||
| TP41 | AMP-REF-BOTSCR | 0.2V | S | P | ? | - | |
| TP42 | AMP-REF-BOTSCR? | 10V | S | P | ? | - | |
| .. | |||||||
| TP46 | Enable? Supply? | 3.2V | S | PP? P? | ? | - | High when displays are active but low during boot |
| .. | |||||||
| TP80 | START | 1.8V | O | PU | ? | - | |
| TP81 | SELECT | 1.8V | O | PU | ? | - | |
| TP82? | HOME? | 1.8V? | O? | PU? | ? | - | |
| .. | |||||||
| TP85 | DPAD-U | 1.8V | O | PU | ? | - | |
| TP86 | X | 1.8V | O | PU | ? | - | |
| TP87 | DPAD-L | 1.8V | O | PU | ? | - | |
| TP88 | Y | 1.8V | O | PU | ? | - | |
| TP89 | A | 1.8V | O | PU | ? | - | |
| TP90 | DPAD-R | 1.8V | O | PU | ? | - | |
| TP91 | DPAD-D | 1.8V | O | PU | ? | - | |
| TP92 | B | 1.8V | O | PU | ? | - | |
| .. | |||||||
| TP131 | (TOP-?)SCREEN-PWM | 1.8V | S | D | ? | 1166.7kHz | |
| TP132 | (BOT-?)SCREEN-PWM | 1.8V | S | D | ? | 1166.7kHz | |
| .. | |||||||
| TP189 | VIDEO-CLK | 1.8Vp | S | D+T | ? | 11.1MHz | |
| Tp190 | VIDEO-HSYNC | 1.8Vp | S | D+R | ? | - | |
| TP191 | VIDEO-VSYNC | 1.8Vp | S | D+R | ? | - | |
| .. | |||||||
| TP213 | TOUCH-R-X? | 0V-2Vp | O | A+R | ? | ||
| TP214 | TOUCH-T-Y? | 2Vp | O | D?+R | ? | ||
| TP215 | TOUCH-R-Y? | 2Vp | O | D?+R | ? | ||
| TP216 | TOUCH-T-X? | 0V-2Vp | O | A+R | ? | ||
| .. | |||||||
| TP249 | NAND-DAT0 | ||||||
| TP250 | NAND-DAT1 | ||||||
| TP251 | NAND-DAT2 | ||||||
| TP252 | NAND-DAT3 | ||||||
| TP253 | NAND-CMD | ||||||
| TP254? | NAND-CLK? |
[1] Presence: A = Always; O = Device On; S = Not during standby.
[2] Electrical characteristics: Signal Type: A = Analogue; D = Digital; P = Power; G = Ground; Driver: PP = Push Pull; OC = Open Collector; PU/PD = Pull Up/Down Typical Waveforms: R = Rectangular; T = Triangular;