AC Power indicator light does not glow

AC Power Indicator Does Not Glow

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This indicates either that the power indicator is burned out (which does happen...) or that there is no AC power reaching the indicator, which is usually wired directly across the power transformer or wired to one of the filament windings of the power transformer. No AC reaching the indicator is more likely than a burned out indicator AND no sound, so the fault may be one of these:

Fuse blown

Open primary in the power transformer in those amplifiers where the power indicator is on a secondary
Power cord open - test it with an ohmmeter
Faulty AC power switch - with the amp unplugged, test it with an ohmmeter.
Faulty wire or solder joint in the AC power path. Test from AC plug prong to prong with an ohmmeter.
Silly stuff like power cord not plugged in

All of the major items may be isolated by using an ohmmeter and tracing out the AC path from prong to prong of the AC line cord. No live voltage tests are needed at this level.

It is also possible that the wall socket is not live. Plug some other AC powered unit into the socket and see if that unit works. If it doesn't, the AC power breaker may be open.