Creating a video signal converter to output video to HDMI for TDS30xxB.In the attached file "HDMI(DVI)Transmitter Project.7z" you will find the 4 layer board design (Altium). gerber files and 3D model.
In my case, the illumination of the matrix was changed from CCFL to LEDs. Therefore, the inverter board was removed and the transmitter board was installed in its place.
An adapter plate was made for the connector. The HDMI connector is installed instead of the LPT.
R0..3=R4..7, G0..3=G4..7, B0..3=B4..7 pads must be connected to each other according to the sсhematic.
Example of captured video signal:
BOM:
IC Texas Instruments TFP410 PAP HTQFP64 Digital Transmitter == 1
HDMI-19-02F, (L-KLS1-285-1-N-1-R) Connector 19pin (SMD) == 1
Connector Hirose DF9-31S-1V(32) == 1
Connector Hirose DF9-31P-1V(32) == 1
RCLAMP0524P, TVS Array 5V [SLP2510P8] == 2
FPC/FFC cable 60mm 20Pin 1mm Reverse Direction == 1
FPC/FFC Socket 20Pin 1mm == 2
LDO +3.3V LD1117DT33TR 0.8А [D-PAK] == 1
Murata Chip Ferrite Bead BLM18RK601SN1D 0603 == 4
SMD capacitor 0603 10uF == 3
SMD capacitor 0603 100nF == 6
SMD capacitor 0805 10uF == 2
SMD resistor 0603 10k == 6
SMD resistor 0603 510R == 1
HDMI Extension Cable Male To Female With Screw Panel Mount 0,3(0,6)m
https://aliexpress.com/item/1005001975924049.html == 1
I installed a 30 cm long cable, but this length was barely enough. Most likely it is better to use 60 cm.
It depends on the location of the board in the oscilloscope body. You may want to use a longer flat FPC/FFC cablesome info about
https://www.eevblog.com/forum/beginners/capturing-video-from-lcd-interface/msg5057389/#msg5057389.The approximate cost was 40$