Barco SLM R12 Plus, Service Manual, Page: 69 / 281

10. Serial Digital Input Module R7632485
10. SERIAL DIGITAL INPUT MODULE R7632485
10.1 General Info
View of the SDI Input module
Front view
Rear view
Image 10-1
View SDI input module
10.2 Technical Info
Technical description
This interface is made for serial digital video (4:2:2) according to SMPTE259 (270Mbit/s).
The input signal is amplified (with equalizer) and sampled with a regenerated clock. A copy of the regenerated input signal is buffered
to a BNC-output. The serial bitstream is transformed into a parallel 10-bit YCbCr stream. Horizontal, vertical sync and field signal
are derived from the 10-bit stream. The YCbCr stream is decoded into RGB signals which connect to the PMP through an Euro
connector. Contrast, saturation and brightness adjustment are possible.
Horizontal and vertical sync are both active high during blanking. The field signal is high during field 1 and low during field 2.
LEDs on board
B
A
Image 10-2
LEDs on board
On this PCB, 2 red LEDs are present.
• SMD LED (D300) (A) which indicates whether the FPGA is configured or not. When the LED is “on”, the FPGA is NOT config-
ured.
• Discrete LED (D301) (B), visible from the outside via an aperture in the front plate, indicates whether the SDI module is selected
or not. When the LED is “on”, the module is selected.
R5976820 SLM R12+ PERFORMER 08/03/2005 67