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Korg 01WFD BOOT UP ISSUE

 
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yoshi88
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Joined: 27 Apr 2007
Posts: 133

PostPosted: Wed Nov 10, 2021 3:57 am    Post subject: Korg 01WFD BOOT UP ISSUE Reply with quote

Just got this 01WFD. Physically in great condition however:
It will only boot into the flash screen that says KORG 01WFD
Holding reset displays the rom# and date. The Rom # 39 appears.
HOLDING RESET + COMPARE has no affect.
The FDD spins.
The Red light above COMBI is red.

Not sure where to begin beyond opening it up looking for swollen caps ets.
I will replace the 2 Eeproms with Rom 62 when it arrives.



Your thoughts would be most helpful to restore this unit.

I also do have another fully functional O1WFD
_________________
Kronos 2 88
M3 61 expanded
Triton Extreme 88 & 61
Triton PRO X 88
Trinity V3 61
O1WFD 61
T3 61
M1 61
03R
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yoshi88
Full Member


Joined: 27 Apr 2007
Posts: 133

PostPosted: Wed Dec 01, 2021 6:05 am    Post subject: Reply with quote

The psu was checked. Voltages are correct as seen with readings of +/- 12 & 5 vdc. Checked the motherboard. Caps look good with some esr values questionable.

Not sure where else I can go. The original service manual does not have more info.... and I cant find another MB TO TEST.

Currently LOADED with ROM 62


ANY THOUGHTS ?
_________________
Kronos 2 88
M3 61 expanded
Triton Extreme 88 & 61
Triton PRO X 88
Trinity V3 61
O1WFD 61
T3 61
M1 61
03R
Back to top
View user's profile Send private message
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