And the purpose of such thing with bloated barely readable schematic is.... ??
Purpose of IC6B/C/D, IC4E/F, IC5E/F (their output resistors respectively), R6, R8, R10, R12, R15 ...?? Why those T1 to T5 even there? Wtf?
There was recently a thread about drawing readable and easily understandable schematics. You might want to look that up. Having a bunch of gates or flip flops and a fuckton of net names really isn't going to cut a mustard.