Seems like the csync emitted by the EMV computer is either too noisey or not amplified enough for the upscaler board to get a lock on the signal.
To rectify this I have ordered:
- LM1881 eg. http://www.mmmonkey.co.uk/composite-sync-stripper-lm1881/
- EL4853 eg. http://shmups.system11.org/viewtopic.php?f=6&t=43992
- JROK Sync Cleaner
Also here is a test fit of the LCD I am using on the CRT mounting bracket.
Fender removed.
Installing bump strips, etc
Fender installed.
More Oscilloscope work.
The whole screen represents 20ms, divisions are 2ms Voltage divisions are 2V.
Oscilloscope output of the sync signal
Oscilloscope output of the sync and colour signal
Links to videos.
Starting state. Everything pretty rusty.
Phosphoric acid tube
Phosphoric acid tube
One week later, nice and clean. With old rust part for comparison.
After painting everything gets put back together
New hardware
Almost done,
Finished product!
Info:
http://books.google.com.au/books?id=53nnX4fnnNIC&pg=PA220&lpg=PA220&dq=b-y%2C+r-y%2C+g-y+chroma&source=bl&ots=1udP3jnpaL&sig=rntO3MGxEeoK2435_mruSWo6zhs&hl=en&sa=X&ei=qFxzU_LKLIyPlQWxt4DwCw&ved=0CCgQ6AEwAA#v=onepage&q=b-y%2C%20r-y%2C%20g-y%20chroma&f=false
There seems to be 2 circuit paths:
One that takes R-Y, B-Y, G-Y and Y and then matrices the Y into the R-Y, B-Y, G-Y. This is done apparently so that the amount of Y added can be adjusted per colour. The output of this circuit goes into the R, G, B pins on the electrode gun. There are two more pins for earth and a heater?
The other takes the Sync and Power. There appear to be 3 syncs. SY, DH, DV. These are used to control the CRT deflectors.
So...
Feeding RGB + Ground from the CRT circuit and SY from the Input into the RGBS input of the converter produced no result. But I could have ruined up the CRT circuit when I was removing it.
EMV Computers: http://mz12gt.com/?p=293
Plan:
EMV Signal -> Converter Box -> ALR-1400 Controller -> 5.7" TFT
Parts:
Signal Interpreter: www.arcadespareparts.com/arcade_parts/video_converter/rgb_jamma_vga_converter_board/13052.html
ALR-1400 LCD Controller: http://www.digitalview.com/products/alr-1400-tech-specs
LCD Display: http://www.sharp.net.au/cms/articles/439/files/LQ057V3DG02%20LED%20BL%20%28TL%29.PDF
All the back seat parts disassembled for cleaning
The back seat restored with stacks of Lanolin grease and Connolly Hide Care.
Begin installing everything
Back in place.
If you can't buy it, you have to rebuild it.
Removing condenser bracketry
Condenser bracketry
Prepping for spray painting.
New and old condensers.
Moving across the service valves to the new compressor.
New compressor installed.
Materials:
- 140cm x 50cm 3mm MDF
- 140cm x 50cm Padding
- 140cm x 50cm Carpet
Equipment
- Stanley knife
- Metal ruler
- 25mm hole punch
Drawing up the template.
Cutting out the new board.
Shelf board finished
Padding adhered.
Test fitment.
Carpet added
Final fitting.
Had to scrap the MZ11. But took time to remove everything from it before letting it go.
Rear TEMS
Front TEMS
Wanted to keep the old technics speakers, but they were too far gone. Replaced with Sonys.
Passenger side door prepared, with handles and lock connections installed.
Driver side door prepared, with handles and lock connections installed.
Door-card cleaned with Connoly Hide care. Ready to be installed.
Put back the 1 Yen where I found it when I removed everything
New carpet underfill.
Original carpet installed.