[Amps] DEAD Alpha 91B

[Tack Kumagai]

Hi Mike

I have a 91B also.
You should check
1.AC primary (110/220V) is alive?
2.Cover SW:S3 (which is located on the inside of rear panel) works?
3.If those 2 are OK, you'll have the voltage at the TAB SELECT/TB1
  on Mains Board: 1-7 110/220V

You should follow the Figure 6 /CHASSIS SCHEMATIC(RF & POWER SUPPLY)
	---------
	Tack Kumagai JE1CKA/KH0AM
	JE1CKA <je1cka at gmai.com>

In message "[Amps] DEAD Alpha 91B"
    on 09/03/04, Michael Tope <W4EF at dellroy.com> writes:
: 
: I am about to pull my Alpha 91B out of the operating desk to do a post 
: mortem. The amp has AC power and the 4 fuses on the rear apron appear 
: good (buzzed them out with my Fluke meter), but nothing happens when I 
: push the on/off rocker switch (not even a single flash from any of the 
: LEDs). Any idea where I should look first for a problem.
: 
: Thanks,
: 
: Mike W4EF........