Power supply was recently recapped all supply voltages are correct with no ripple.
On Mon, Oct 28, 2013 at 5:38 PM, <kslinkard@...> wrote:
First thing I would look at is how clean and accurate the power supply voltages are.
From: "cxacxu" <cxacxu@...>
To: vintagesynthrepair@yahoogroups.com
Sent: Sunday, October 27, 2013 10:07:39 PM
Subject: [vintagesynthrepair] Strange TR-808 reset problem
Got a strange problem with an 808 here, the CPU will only start up when the +15v rail is disconnected. When +15v is connected the CPU does not start and the first light of step 1 does not light, the 5V and +/-15V rails are all steady, When the +15V is disconnected the cpu will start up and the sequencer will run. Any thoughts?L