Sony KP-46WT520 CRT Projection TV - Standby Blinking 5 times

[CoogarXR]

I have a friend who has a Sony KP-46WT520 CRT Projection TV, made about 2005. He says the other day it would turn on and the standby was flashing 5 times, and that he'd have sound but no picture.

I have done plenty of DLPs and flat-panel TVs, but I have only worked on a handful of CRT projection TVs. Any of you guys ever worked on this model? If so, any tips?

I normally wouldn't consider a CRT projector repair job, but it's for a good friend of mine. This will be a house-call repair too, heh.

I saw a generic Sony blink-code list online, I don't know if it pertains to this model. Here's what it says for 5 blinks:

"FIVE Blinks---AKB circuit (AKB), the timer/standby indicator blinks for about
30 seconds then goes to the self-diagnosis function. Something is wrong with
the video. Check video out, Q705, 732, 761 and other components on the C
board, also check Q218, 219, 220 on the A board. Also unit be in IK blanking,
try turning up screen slightly."

So, any of you ol' pros have any tips?