Hi,
Any troubleshooting hints for -+18V when measuring U7 voltages?
Hat voltage +-18V [SOLVED]
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e-licktronic Site Admin - Posts 519
- Joined: Feb 16th, '11, 13:36
Dear bleah,
Measure C88* and C89* voltage. Check the polarity of this capacitors too.
Are the other ic's voltages -15v , +15v ?
Do you already solder U7 ?
Have a look on the HiHat schematic then test all +B3*, -B3* voltage.
Best regards,
e-licktronic
Measure C88* and C89* voltage. Check the polarity of this capacitors too.
Are the other ic's voltages -15v , +15v ?
Do you already solder U7 ?
Have a look on the HiHat schematic then test all +B3*, -B3* voltage.
Best regards,
e-licktronic
Best regards,
e-licktronic
e-licktronic
Well, I don't quite understand what happened but now U7 voltage is around +/-15V after I build the Master section.
I have socketed U7 but I tested voltage again without IC in place and voltage is good.
All other IC voltages have been correct.
Polarity of C88 & C89 are correct.
So it seems that I don't have problem anymore.
I have socketed U7 but I tested voltage again without IC in place and voltage is good.
All other IC voltages have been correct.
Polarity of C88 & C89 are correct.
So it seems that I don't have problem anymore.