I have not seen a list of the chips on our glowforge control board, so I have started the list. If anyone has any input, please post on this thread. Too bad this forum isn’t more of a wiki . . .
Here’s the photos from my first breakdown:
COMPONENT LOCATION:
INTERCONNECTION OVERVIEW:
HEAD PCB:
HEAD FPCB:
AIR ASSIST PCB:
CONTROL PCB:
INTERCONNECT PCB:
It’s been 7 years, so there are likely revisions to these boards in newer models.
For one, they no longer populate the components for the USB serial port.
Most recent test point details (use at your own risk, as I make no guarantee of the accuracy of any of this):
| LOC | DESCRIPTION |
|---|---|
| +12VDC | +12VDC Power Supply |
| +3.3VDC | +3.3VDC Power Supply |
| +40VDC | +40VDC Power Supply |
| A2A | 40_VDC_ENABLE (J1_24)(U18_W24_GPIO5_IO17) |
| A2B | HV_ENABLE (Pulsed) (U24_2)(J1_16) |
| A2C | HV_PFC_STOP (J1_14) |
| A2D | LASER ON (J1_12) |
| A2E | INTAKE FAN 1 TACH (J1_10)(U18_P25_GPIO4_IO20) |
| A2F | HV_VOLTAGE (Connected to GND in pwr sply) U9_18_AN19 (J1_02) |
| A3A | HEADCAM_CSI_DATA0_N(U19_18)(J2_27) |
| A3B | HEADCAM_CSI_DATA0_P(U19_19)(J2_26) |
| A3C | HEADCAM_CSI_DATA1_N(U19_21)(J2_30) |
| A3D | HEADCAM_CSI_DATA1_P(U19_20)(J2_29) |
| A3E | HEADCAM_CSI_CLK_N(U19_23)(J2_24) |
| A3F | HEADCAM_CSI_CLK_P(U19_22)(J2_23) |
| A3G | Z_STEP (J2_19)(U18_G24_GPIO2_IO21) |
| A3H | Z_DIR (J2_18)(U18_H23_GPIO2_IO17) |
| A3J | HEAD (J2_16)(U18_E23_GPIO3_IO22) |
| A3K | BEAM_DETECT (J2_15)(U18_F23_GPIO2_IO31) |
| A3L | SERIAL_TX (U18_D19_UART2_TX)(J2_13) |
| A3M | SERIAL_RX (U18_E18_UART2_RX)(J2_14) |
| A4A | EXHAUST_FAN_PWM (J2_09)(U18_F17_PMW4_OUT) TP_A4A |
| A4B | WATER_FLOW_A (U9_5_ADC3)(J2_04) |
| A4C | THERM_ELEC_COOLER_EN (J2_01)(U18_B16_GPIO6_IO10) |
| A4D | EXHAUST_FAN_TACH (J2_08)(U18_D18_GPIO2_IO08) |
| A4E | WATER_FLOW_B (U9_4_ADC2)(J2_03) |
| A4F | WATER_PUMP_EN (J2_02)(U18_A16_GPIO6_IO08) |
| A4G | THERM ELEC TEMP (U9_7_ADC4)(J2_06) |
| A5A | Y_STEP_CURRENT (U9_22_RB1) |
| A6A | LIDCAM_CSI_DATA0_N(U19_12)(J4_27) |
| A6B | LIDCAM_CSI_DATA0_P(U19_13)(J4_26) |
| A6C | LIDCAM_CSI_CLK_N(U19_16)(J4_24) |
| A6D | LIDCAM_CSI_CLK_P(U19_17)(J4_23) |
| A6E | LIDCAM_CSI_DATA1_N(U19_14)(J4_30) |
| A6F | LIDCAM_CSI_DATA1_P(U19_15)(J4_29) |
| B2A | 12_VDC_ENABLE (J1_17)(U18_U25_GPIO5_IO08) |
| B2B | PWR TEMP (U9_2_ADC0)(J1_15) |
| B2C | LASER-HV PWM (J1_13)(U18_T25_PWM2_OUT) |
| B2D | INTAKE FAN 2 TACH (J1_11)(U18_P23_GPIO4_IO23) |
| B2E | INTAKE FANS PWM (J1_09)(U18_R22_PWM1_OUT) |
| B2F | HV_CURRENT U9_17_AN18 (J1_01) |
| B2G | MMC1 DATA 1 |
| B2H | MMC1 DATA 0 |
| B2I | MMC1 CLK |
| B3A | I2C_BUS4_SCL (U40_P7) |
| B3B | |
| B4A | |
| B4B | X_STEPPER_CURRENT (U9_3_RA1) |
| B4C | I2C_BUS4_SCL (J2_20)(U40_5) 12V |
| B4D | I2C_BUS4_SDA (J2_21)(U40_3) 12V |
| B4E | CAMERA_MUX_OE (U19_8)(U18_C15_GPIO6_IO07) |
| B4F | OV5648_MIPI_SEL U19_11 |
| B4G | X_FAULT (U18_E24_GPIO3_IO26)(U20_18) |
| B4H | I2C_BUS4_SDA (U40_P1) 3.3V |
| B4J | |
| B5A | X_HOME (U18_K25_GPIO3_IO06)(U20_27) |
| B5B | Y1_FAULT (U18_L24_GPIO3_IO08)(U21_18) |
| B6A | Y1_HOME (U18_M22_GPIO3_IO10)(U21_27) |
| B6B` | LID_LED_PWM (U9_21_PWM4)(J4_5) |
| C1A | 3.3VDC |
| C1B | U6_1 |
| C1C | U6_13 |
| C1D | U6_8 |
| C1E | U6_3 |
| C2A | MMC1_DATA3 (U18_B22) |
| C2B | MMC1_CMD (U18_F19) |
| C2C | MMC1_DATA2 (U18_A23) |
| C2D | MMC1_CARD_DETECT (U18_GPIO01_IO04) |
| C2E | USB_H1_DP (U18_E10) |
| C2F | USB_H1_DN (U18_F10) |
| C2G | USB_OTG_VBUS (U18_E9) |
| C2H | Voltage divider off of 3.3V rail. |
| C2J | GROUND |
| C2K | USB_H1_VBUS (U18_D10) |
| C2L | USB_OTG_DP (U18_A6) |
| C2M | USB_OTG_DN (U18_B6) |
| C2N | |
| C2P | |
| C3A | |
| C3B | |
| C3C | SUPERVISORY_RESET (U8_1) |
| C3D | NVCC_PLL (U18_E8) |
| C4A | |
| C4B | BOOT_MODE0 (U18_C12) |
| C4C | BOOT_MODE1 (U18_F12) |
| C4D | (U18_N7_NVCC_CSI) |
| C5A | 3.3VDC |
| C5B | IR SENS (U9_26_ADC13)(J4_P15) |
| C5C | IR SENS (U9_25_ADC11)(J4_P14) |
| C5D | IR SENS (U9_24_ADC9)(J4_P11) |
| C5E | IR SENS (U9_23_ADC8)(J4_P10) |
| C5F | |
| C6A | I2C_BUS1_SDA(J4_20)(U18_G23_I2C1_SDA) 3.3V |
| C6B | I2C_BUS1_SCL(J4_21)(U18_H20_I2C1_SCL) 3.3V |
| D1A | INTERLOCK_RESET (U23_6)(U18_P5_GPIO4_IO05) |
| D1B | BUTTON (U5_11)(U18_U6_GPIO4_IO09) |
| D1C | DOOR_SW1 (U5_1)(U18_T6_GPIO4_IO14) |
| D1D | LATCH_RESET (U18_R3_GPIO1_IO07)(U32_2) |
| D1E | U17_12 |
| D1F | LASER_ENABLE (U18_E22_GPIO2_IO30)(U17_10) |
| D1G | DOOR_SW2 (U5_3)(U18_T3{GPIO1_IO06) |
| D1H | U1_2 |
| D2A | |
| D2B | |
| D2C | |
| D2D | |
| D2E | (U18_U5_I2C2_SCL) |
| D2F | (U18_W4_HDMI_TX_CEC_LINE) |
| D2G | |
| D3A | |
| D3B | SERIAL_CONSOLE_TX (U18_M1_UART1_TX)(U37_15) |
| D3C | |
| D3D | SERIAL_CONSOLE_RX (U18_M3_UART1_RX)(U37_2) |
| D3E | |
| D3F | ??? (U18_R1_GPIO7_IO12) |
| D3G | (U18_T7_I2C2_SDA) |
| D3H | |
| D4A | C4D - Prefilter |
| D4B | |
| D4C | |
| D4D | |
| D5A | |
| D5B | |
| D5C | AUDIO_PWM (U18_B19_PWM3_OUT) |
| D6A | |
| D6B | SPEAKER_P (J6_2) |
| D6C | SPEAKER_N (J6_1) |
| E3A | |
| E3B | |
| E4A | |
| E4B | |
| E5A | Y2_FAULT (U18_N23_GPIO3_IO14)(U22_18) |
| E6A | AUDIO_ENABLE (U18_F25_GPIO5_IO04) |
| F3A | (U13_5) |
| F3B | |
| F5A | Y2_HOME (U18_M21_GPIO3_IO09)(U22_27) |
| F5B | |
| J1A | THERM_ELEC_COOLER_TEMP (U4_8_OUT3)(J5_26) |
| J3A | I2C_BUS4_SCL (J2_10) |
| J3B | I2C_BUS4_SDA (J2_9) |
| K1A | WATER_FLOW_A (U4_1_OUT1)(J5_28) |
| K1B | WATER_FLOW_B (U4_7_OUT2)(J5_29) |
| M4A | |
| M4B | |
| M4C | |
| M4D | |
| N1A | Air Assist PWM (J4_6) |
| N2A | |
| N4A | |
| N4B | |
| N4C | |
| N4D | |
| N4E | |
| N4F | |
| P1A | (J4_10) |
| P1B | (J4_12) |
| P1C | Air Assist Tach (J4_7) |
| P1D | (J4_11) |
| P1E | (U11_16_PTC5)(U1_5) |
| P1F | (U11_22_PTC1) |
| P2A | |
| P2B | |
| P2C | J4_01 |
| P2D | J4_03 |
| P2E | I2C_BUS4_SDA (U11_21_PTB1) |
| P2F | I2C_BUS4_SCL (U11_20_PTB0) |
| P2G | |
| P2H | Z_MODE0 (U12_P13)(U11_17_PTA18) |
| P2J | Z_STEPPER_CURRENT (U12_8_VREF) |
| P2K | Z_DIR (U12_3_DIR) |
| P2L | Z_HOME (U11_18_PTA19)(U12_1_HOME) |
| P2M | |
| R1A | (U11_14_PTA4) |
| R1B | |
| R1C | |
| R2A | (U12_10_VCC) |
| R2B | |
| R2C | 12VDC |
| R2D | (U12_17_RESETn) |
| R2E | Z_STEP (U12_19_STEP) |
| R2F | Z_ENABLE (U12_6_ENn ) |
| R2G | |
| T1A |