Wepaintemwild
New Member
Sorry, I'm not all that familiar with testing stuff like this. I set to 200k and both fuses climbed to like 188 and then screen goes back to 1
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Need Help Roland SP540 not printing questions
- Thread starter Wepaintemwild
- Start date
Jim Hancock
Old School Technician
Set it to 200 in that same section of the meter control. But it looks like both fuses are blown. But I want to confirm with a new reading at 200.
Jim Hancock
Old School Technician
Wepaintemwild
New Member
My apologies...not used to testing stuff like this. When I set it on 200k it metered up to 180's and then screen goes back to1 (home screen)
Wepaintemwild
New Member
Duh...finally set on 200.. my eyes are bad. Made contact on both fuses...nothing on either
Jim Hancock
Old School Technician
Wepaintemwild
New Member
I checked them...all are reading between 28-29
Jim Hancock
Old School Technician
OK, they are probably all good. If you touch your meter leads together does it go to zero? Let me know what this reading is please...
Wepaintemwild
New Member
Wepaintemwild
New Member
It goes to.3
Jim Hancock
Old School Technician
It looks like the transistors are OK. You need to replace the fuses. Do you have someone who can do this? If not, that is a service I offer. Contact me through email about that. My suggestion at this point would be to repair the board and put in 2 new heads. There is no real way to test the heads, which likely caused the fuses to blow. Were the second set of heads you put in known good heads?
Wepaintemwild
New Member
Jim Hancock
Old School Technician
It looks like the transistors are OK. You need to replace the fuses. Do you have someone who can do this? If not, that is a service I offer. Contact me through email about that. My suggestion at this point would be to repair the board and put in 2 new heads. There is no real way to test the heads, which likely caused the fuses to blow. Were the second set of heads you put in known good heads?
Wepaintemwild
New Member
Ok, can't thank you enough for your help. Should I be concerned about that outside capacitor in the corner of the board..it did not react to the meter
Jim Hancock
Old School Technician
No, as capacitors can give funny readings, based on which meter leads touch which side of the capacitor. You really need a special capacitor tester to check capacitors. The primary thing is all your transistors are reading the same. When they go out, they usually short out, and this would have shown up in the readings you took. Let me know if you need me to repair the board for you...
Wepaintemwild
New Member
I could probably get done by a close friend, but would feel more comfortable letting you do it. If you want to email me your info, I will get it ready.
Jackflash65@comcast.net
Jim Hancock
Old School Technician
Email sent...
Jim Hancock
Old School Technician
That would be a good modification to make. Do you have a part number or such for the fuse holder?
I just solder new ones right on top of the old ones. This way you can use the right fuse and if you have to replace, you're desoldering from the fuse and don't really risk damaging the board. - Or you could even solder a socket on top of the old fuses - it works.