Seems OK for me. It explains that LEDs are working as intended, but it does not explain the lack of heating in your amplifier tubes. So, I'd like to know (all DC voltages) across C209 (or C210, or C211), across R223.
Make the abovementioned measurements twice please: with and without tubes (I mean V200-V202, not the rectifier).
Could you also post a photo of insides?