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Fully functional usable service manual. Considering the age of the manual and device quality was better than expected
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Thank you very much, I've been very happy to find this manual on "Owner Manual". It's a perfect copy and it has been really useful for my work!
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It took about 24-hours after my payment before I was able to get to the download. Apparently, payment processing is not 100% automated. That is no big deal, just be aware of that going in.
After I got to it, it was in good shape, easy to read, etc. Not some cheap FAX copy looking thing.
Also, this site was the cheapest I found. Another Plus!
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Good price, very legible manual, exactly what I needed -- but had to wait a day to actually get the download of the manual. Would have preferred to download it immediately after payment rather than waiting for someone to "process" my order. I was surprised that I had to wait that long.
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As the only source for this manual it rather rank quite high since it is well scanned and perfectly readable.
TROUBLE SHOOTING B. Front panel buttons
Front panel buttons
Check U34 and any components nearby for bad soldering, open/short circuit, damage, etc.
Remove F/W (U25) and replace it with a working No F/W, check if the machine will function normally. Yes Remove the top cover, remove the panel; check if there�s any signal output on pin15, 16 of U1 on the front board(also check for bad soldering)
Replace main board
Check SW1~SW7 and any components nearby for bad soldering, open/short circuit, damage, etc.
Check the 12pin cable that connects the front board No with the main board, check if the cable is properly connected. Yes Check the 12pin cable that connects the front board with the main board, check if the cable is properly connected.
Replace front board
Use the oscillator or multimeter to check if the voltage between p10 No and GND of JP6 on the main board �27V and also check if the voltage between pin2 and GND 5V
Replace power board
Yes OK
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