On 2 May 2006 11:41:22 -0700 "nmrguy" wrote in
Message id: .com:

[sci.electronics.repair added]

Hi,
Does anyone know the interpretation of an error code
"TEST 05 FAIL A2"
on startup of a 2465?

Thanks in advance
Charlie

From my 2465A service manual:
Test 05: ADD Main Board.
Error code X2: Negative level not negative enough.

"X" indicates which bit of the option select register is set to turn on
the option called out by "OD" (see options manual for description of
options select register).
This bit is zero for the basic instrument.