Gif
Give this a try here goes..................
First : I opened the box to see heat related stress cracking on the solid state relay's.
Second : Bad Fuses of course because they had a 700 + watt spot light on one channel I was told that someone had put a 500 watt lamp on the same channel.
So they began to double up on the outputs on a (rated : 600 watts per channel) of 500 watt bulbs each channel at peak wattage.
So, they have overloaded every channel/starting with the spotlight..............? what am I thinking.
Here's my pic of suspect's/not excluding the relay's.
LM324N OP-AMP QD S/PS - NAT LM324N
TL074CN OP-AMP QD DUAL/PS- MOT TLO74
3021/2 OPTO-ISO/TRIAC DVR - MOT MOC-3021
4024 CMOS 7BIT RPL CNTR - MOT MC14024BCP
4051 CMOS 8 CH ANLG MPXR - NSC CD4051 BCN
4584 CMOS HEX S/T INVRTR - MOT MC14584BCP
4585 CMOS 4 BIT MAG CMPR - MOT MC14585BC
Comments welcome and ridicule for attempting this instead of buying a new one. Or suggestions of the best price of parts and straight forward first steps of completing this job efficiently.
Begin at this point check that point etc.
If anything you will have another schematic to have reference too.
...................... kv