JBL 5.1 surround cinema speakers system transformer issue

Hello sir, 
I am Kathir from India.
​​​​​​My transformer has failed in that system.Transformer make transtec. No TT0869803320-E / 150-e8604106e.(inbuilt thermal fuse)
No other details of secondary AC output voltage.
It's 230VAC input and  5 wires in secondary. In service manual final end termination Mentioned +15V,-15V,0V,+VCC,-VCC.
I need transformer output AC voltage and current ratings.
I request you to send if details available please .
Regs
Kathir
s.kathiravan at rediffmail point com