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--- tom:sofacontrolswitches [2022/03/26 04:52]
dwheele
+++ tom:sofacontrolswitches [2022/03/26 05:14] (current)
dwheele [Bridge Rectifier]
@@ Line 6: / Line 6: @@
 I wired my switches into the touch-sensitive circuit, and it did not work reliably. I think it was expecting AC high-impediance current, so what I did was different. I took detailed pictures of the circuit to see if I can wire my switches in to the relays more directly (bypassing the touch-sensitive part).
+==== Bridge Rectifier ====
 {{ :tom:bridgerectifier_kbl410.jpg |Bridge Rectifier}}
+This proves that the adaptors are 24 VAC. A filter capacitor is mounted on the other side.
+==== Control Relays ====
 {{ :tom:relay_973-24vdc-sl-c.jpg |Relay (4 of them)}}
+==== Relay Schematic ====
+The relay on the circuit board is a 973-24VDC-SL-C. This relay schematic is similar to a 973-24VDC-SL-**A** which is SPST type instead of the desired SPDT (even though the N.C. connection is not used).
 {{ :tom:relayschematic.png |Relay Schematic (bottom view)}}
+Here is the control board for the "system" with touch-sensitive controls. Labels are from my deduction, schematic is unavailable.
+{{ :tom:controlcircuitboardwithannotations.jpg |Circuit Board with Annotations}}
+Looks like the solution is to pull the other Coil lead to ground.

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