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Quoted from Luckydogg420:This is node 9 for comparison
Can you include face on pictures of the TO-220 package transistors showing their markings?
The small "K2K" transistors Q15 - Q29 next to connector CN16 which are the light drivers are "2N7002K", SOT23 package, N-Channel MOSFETs.
Quoted from Luckydogg420:Did you want better shots of the 16 pin chips, or the tiny k7k c3, guys right next to c16? I'll do my best, but just using a cell phone camera
Nah that's ok, just need pics of the larger transistor part markings.
The 16 pin chips "74HCT594" and "74HCT165" are straight forward part numbers.
I presume the 74HCT594 are decoders (serial to parallel) which activate the light driver transistors at Q15-Q29 (K2K / 2N7002K)
74HCT165 might be used for the switch return inputs since they are parallel to serial converters.
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