Hi all,
Just wanted to share some information with everyone. I had a DK JR board which has been working fine since getting it repaired by Dick Millikan. The other day, I turned it on and left it on while I played other games. When I was done, I looked at the DK JR cab and the screen was black. When I powercycled it, it would make the initial "jump" power on sound, and then a heart-beat clicking noise, but the game would not power on.
So, I took my Braze HSS kit out of the DK and put it into the DK JR to troubleshoot. Lo and behold, it worked fine. So, I swapped the original z80 back in -- board would not come up.
Long story short, Braze let me know that the HSS basically replaces the EPROMS and related circuitry on the CPU board -- I was unaware of this, and thought it was just a modification to how the game runs. Since I knew to check the eproms, I went down and made sure they were all seated properly -- 5E was a little loose and I heard it pop back into place -- the game then booted up fine without the HSS kit installed.
Current theory is the board heated up and let the chip pop out a bit. Still it's interesting to know that the HSS kit does so much -- in theory a CPU board could be very hosed but work fine once a HSS kit is installed.
Just wanted to share the info.
Just wanted to share some information with everyone. I had a DK JR board which has been working fine since getting it repaired by Dick Millikan. The other day, I turned it on and left it on while I played other games. When I was done, I looked at the DK JR cab and the screen was black. When I powercycled it, it would make the initial "jump" power on sound, and then a heart-beat clicking noise, but the game would not power on.
So, I took my Braze HSS kit out of the DK and put it into the DK JR to troubleshoot. Lo and behold, it worked fine. So, I swapped the original z80 back in -- board would not come up.
Long story short, Braze let me know that the HSS basically replaces the EPROMS and related circuitry on the CPU board -- I was unaware of this, and thought it was just a modification to how the game runs. Since I knew to check the eproms, I went down and made sure they were all seated properly -- 5E was a little loose and I heard it pop back into place -- the game then booted up fine without the HSS kit installed.
Current theory is the board heated up and let the chip pop out a bit. Still it's interesting to know that the HSS kit does so much -- in theory a CPU board could be very hosed but work fine once a HSS kit is installed.
Just wanted to share the info.
