No clock signals in A500. Dead Agnus?

Hi all, please excuse a dumb question from a new user.

just got a used (and dirty as all hell) Rev. 3 PAL A500. It seems to be unmodified.

Contrary to what the seller promised, it is also quite dead. No screen image, no floppy ticking, nothing. Well the caps lock LED works...

I wanted to look into it but I found that nothing seems to be "ticking" at all. Well the supply voltages are all there, the reset signal behaves in the way it should, and there is what looks like a good 28 MHz signal at Angus (8371) clock input pin 34, but nothing at all on the Angus clock output pins (CCLK, 7 MHz, etc.). Just constant high or low levels. Same story at the clock pins of all the other clocked chips. The Angus gets slightly warm, but not hot

Am I right to assume that this still points to a dead Angus chip? Unfortunately I don't have another one to swap in... Or would you think that something else is going on here? I did try re-seating all chips, to no avail.

Thanks for any hints, TeaRex

[Jope]

I'd try with a different Agnus first. Best swap another 8371 in its place, even though the 1MB Agnus would also work, albeit in NTSC mode in an unmodified motherboard.