PCB800099 Overlook - ahrlad/RTD2662 GitHub Wiki

PCB800099/VS-TY2662-v1 aka The '99 Board

The most common RTD2660/2 implementation. Features include:

Hardware:

• Crimson: Switch-mode buck converter, adjustable, set to 3.3v. LM2576
• Orange (under inductor) Switch-mode boost backlight driver PT4103
• Light blue: AMS1117-1.8 Fixed voltage LDO voltage regulator
• Purple: P-channel mosfet, 9435
• Yellow: 8-pin SPI flash memory (different manufacturers)

Input:

• HDMI digital in
• Analog VGA/YPBPR video in (RGBHV/YPbPr) header, with VGA connector to same lines
• Two standard def composite/svideo lines (for two separate composite sources or one s-video)
• Standard 5-pin keypad pin header (Pwr, +++, ---, Menu, Source) with pins for red and green leds

Output

• 50Pin TTL interface (24 bit) for AT070TN92-style displays
• 30Pin Lvds Pin header for various Lvds displays

Pin config

(Not separately confirmed, double check yourself before trusting my numbers:

• Backlight enable pin: 111, P3D4
• TTL Panel enable pin: Pin110, P3D3
• TTL U/D scan direction sel: Pin98, P5D4
• TTL L/R scan selection sel: Pin99, P5D5
• ACC (reversing) detect pin: Pin101, P5D7
• IR pin: Pin64, P1D0
• Green Led: Pin65, P1D1
• Red Led: Pin52, P6D6
• DDCSCL: Pin58, P3D0
• DDCSDA: Pin59, P3D1
• ADC Keypad: Pin53, P6D3, ADC3

Simplified schematic

(Also not separately checked or confirmed):

Board pictures

(Resized and mirrored so they can be layered for pin tracing. The pics are from somewhat different board revisions but most traces make sense anyway):