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Need help with a VP300. Unresponsive, I’ve gone about as far as I know.

UpriseSupply

New Member
Hey guys, so here’s the rundown. Super thankful for any help or opinions offered!

Acquired a Roland versacamm VP300 that has been sitting for about a year. Previous owner said that he could not get the machine to power on and has basically given up on it. I recently rebuilt my Ricoh DTG printer so felt fairly confident that i could tackle this.. Since picking it up, I purchased a new panel board since i read that the sub power button was know to fail. Swapped that out but will not power up.

Ive read just about every thread i can find on here but no one seems to have the exact scenario that im dealing with. So here is the rundown of what ive messed with so far.

When i turn the power switch on the back on, i see
- Green Led on the Carriage illuminates
- Green LED on Main board (D1) illuminates (shown in photo)
- LAN Port Flashes
- The LCD Screen does nothing, and pressing / holding the power button also does nothing.

Other than that, nothing else happens.
**Note** I did notice that the D1 LED stays constantly lit on some turn power cycles, but then other times just flashes and shuts off.

Heres what ive "tested" so far.
- Checked all print head ribbon cables on both sides since i read that was a common issue.
- Checked panel board ribbon cables on both sides
- Also used a multimeter to check voltage on thru the ribbon cable to the panel board and had power in there, and assortment of 41v and 5v inputs.
- Checked the 3 Fuses on main board as well as the 2 fuses on the power board, all fine.
- Checked voltage from the 3 power wires leading from the power supply board to the Servo Board. (pictured)
- All show 41V
- Checked power from servo board to main board, also shows 41v.


Hopefully there is enough information here to help point me in the right direction or to let me know that im an idiot and missed a crutial step lol.

Thanks in advance!
 

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damonCA21

Active Member
Replacing the screen panel board would be the next step. They do fail with age, even if they are getting a voltage input;. From what you have done so far the power supplies to the printer all seem fine. Even if you get a problem with the main board or servo board, the panel will still come on and give you an error code.
When the printer powers on, it will boot up, but won't go any further unless it gets power from the main control panel button.
I have used tested OEM control panel boards in stock if you need one. Generally they aren't repairable as the main chip on the board fails and you can't get replacement ones.
 
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