Thanks NoDrama.
I checked the RFM for the T1/T2 P1/P2 CDS and CPDS (various revisions) and they all indicated what i had, but I did think it strange that the standby horizon would be on a warning panel ??. I agree with you.
I checked what i had for the TM and it is just as you say with no AP1/ AP2 and a AP A. TRIM in place of of the stand by Horizon. I've taken note of the Active and Emer Sw lighting also.
thanks for your help.
