Roku BrightSign HD2000 Hardware Guide PCBA: Rev C Version: 1.
Table of Contents OVERVIEW ..................................................................................................................................... 3 HD2000 BLOCK DIAGRAM ........................................................................................................... 4 PORTS .......................................................................................................................................... 5 POWER CONNECTOR .......................................................
BrightSign HD2000 Overview This hardware reference manual specifies the hardware interfaces on the HD2000, as well as providing a guide to troubleshoot the hardware of the HD2000 for in-field service. This manual will not describe any software functions. The BrightSign HD2000 is a device that can be used to drive a variety of HDTV and computer monitors for digital sign and kiosk applications.
BrightSign HD2000 HD2000 Block Diagram LEDs IR Button Boot flash ETAP MAX232 RGB/VGA Connector switch CPU PNX8950 DB9 DB25 Video DAC Dip switch Active Filter HDMI ENC. Video Connectors 2K flash 3 Audio DACS PCI Realtec RTL8100C Ethernet Conn. DDR SDRAM 256 MByte 2 banks NAND flash Ethernet Magnetic HDMI Conn. Audio Connectors SPDIF Connector Regulator 2.5V ISP1563 USB to Flash Bridge Dual USB Connector SD/ MMC Regulator 3.3V Regulator 1.25V DC 5V Conn. Regulator 1.8V CF Conn.
BrightSign HD2000 Ports On back of the unit: • Power plug for 5V power input at 3A • 3 stereo 1/8” mini plugs for audio output • DB15 VGA video connector. • Triple RCA jacks for Component Hi-Def output (Y-Pr-Pb). This port can also output composite video and S-Video. • HDMI connector • Two high speed USB host ports. • 10/100 Ethernet jack • DB25 Female for LED output and Switch input, as well as supplying 100mA of 3.3V power. • DB9 Male RS232.
BrightSign HD2000 The pinout of the DB9 on the REVB HD2000 board is as follows (NC=No Connect): pin Description 1 NC 3 Transmit data out of HD2000 5 Ground 7 RTS 9 NC pin Description 2 Receive data into HD2000 4 Available 5V @ 250mA 6 8 NC CTS DB25 Switch/LED connector The Switch/Led connector is a DB25 Female. This connector is used to allow the HD2000 to control external LEDs or other devices requirind 15mA of current or less.
BrightSign HD2000 19 21 23 25 Button 8 input Ground Button 2 input Button 0 input 20 22 24 Button 7 input Button 4 input Ground The following Diagram shows how to wire up a button and LED to each input/output (this is the schematic of the Roku button/led board that we sell for development use). You of course can use as little or as many of the inputs and outputs as you wish. Ethernet The HD2000 has a standard RJ45 connector for 10/100 base T Ethernet.
BrightSign HD2000 USB The HD2000 has two high speed (400 mbit) USB host ports. The ports have the following pinout: pin Description 1 VBUS 3 D+ pin Description 2 D4 Ground DB15 VGA connector The VGA connector is a able to output 1280 X 720 and 1024 X 768 computer RGB video. The connector has the following pinout (NOTE: This pinout is only accurate for REVC and later.
BrightSign HD2000 Tip: Left audio Ring: Right audio Base: Ground for audio signal HDMI connector The HDMI connector is used to send digital video and audio to HDMI enabled sink devices.
BrightSign HD2000 Power usage The power supply on the HD2000 is a 15W 5V @ 3A power supply. The HD2000 will use approximately 2.1A of power when playing a 720p or 1080i MPEG2 HD source file. This implies that there is 900mA of additional available power that can be used by peripherals connected to the HD2000. The user should not connect up any combination of peripherals that will exceed 900mA draw. If more than 900mA is drawn, then the external power supply will shut down due to overcurrent conditions.
BrightSign HD2000 Mechanical This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Roku assumes no obligation regarding future manufacturing unless otherwise agreed to in writing. www.rokulabs.
BrightSign HD2000 Theory of operation Power Supply The HD2000 has a five voltages present. These are 5V, 3.3V, 2.5V, 1.8Vand 1.2V. 5V comes in from the power connector and is used directly for USB, the video filter chip, the optical SPDIF chip, and the audio dacs. 3.3V is created from 5V by a AMC2596 switching regulator. Similar regulators are used to create 2.5V for the DDR SDRAM, 1.8V for the HDMI chip, and 1.2V for the PNX8950 core voltage.
BrightSign HD2000 Video Encoder and Filter The PNX8950 streams decoded video out of the QVCP5L port using single data rate clock. The PNX8511 video encoder takes the QVCP5L data in and sends the data straight to the video DACs in HD mode. The PNX8511 also has an internal SYNC engine that is only used in HD mode to add video sync to the 3 component signals. In VGA mode, the sync signals from the PNX8950 and are passed through the PNX8511. The PNX8511 mode is controlled by IIC from the PNX8950.
BrightSign HD2000 On Board Switch The on board switch is connected to a GPIO32. There is a pullup on the button so that GPIO32 is high normally, and it is pulled low when the button is pressed. IR Receiver The IR receiver receives a 38KHz IR signal. The IR signal is filtered and demodulated and then sent into the PNX8950 on GPIO40. The signal is called IR_DAT on the schematic. CF flash slot The CF flash slot is connected up to the SMSC USB2777 USB flash controller chip.
BrightSign HD2000 Appendix A Flow Chart: (for Repair Center Use) (1) Power Start No LEDs on Is the Output power adapter 5V DC? No Replace Power Adapter Is the Voltage of No Check D21 & D22 for shorts L80 = 5V? Yes Is the Voltage of No Check U34, L88, D26 No Check RP15 TP24 3.3V? Yes Is the Voltage across D12 ~= 2V? Yes Replace D12 This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
BrightSign HD2000 (2) Power LED comes on, no serial port output No serial port output Is there 2.5V DC at TP19? No Check U32, D24, L83 Is there 1.
BrightSign HD2000 (3) Power LED comes on, 1 or more green LEDs come on in sequence from left to right, and then go out. Red LED stays out. Serial port tests are in order. Connect a PC to the HD2000 using a null modem cable (Wire up 2-3, 3-2, 5-5). Set the terminal program to 38,400 N,8,1. A) If the serial port is not working, then check U12 and P4. B) Use the “dir” command to test reading the CF flash card. Use the “dir SD:” command to read from the SD card.
BrightSign HD2000 D) Run the following script to test the buttons. Press each button and a led should light for each button pressed. If any switch fails to read, or is stuck on, then check U22, U23 and the resistors and beads on the inputs to U22 and U23. This script will test the front panel switch as well as the switches connected to the DB25. p = CreateObject("roMessagePort") events sw = CreateObject("roGpioControlPort") sw.
BrightSign HD2000 Appendix B Boot Progress During booting the HD2000 uses the LEDs immediately to the right of the front panel LED to indicate progress.
BrightSign HD2000 LED16 LED11, 13, 14, 16 No upgrade found in safe mode No ship indicator has been set Note that all LEDS11-16 is not defined on this list since it has been used to indicate completion of the updater. This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Roku assumes no obligation regarding future manufacturing unless otherwise agreed to in writing. www.rokulabs.
