8V/-8V instead of 15V/-15V in mid tom [SOLVED]

Hi,

When I test the op OP voltage on mid tom section I have 8v and -8V instead of 15V and -15V.
Every OP are monted with socket.

When I remove the noise OP, the voltage become again good (15V and -15V)

All composents are in is right place, and I all the diodes are good.

Someone have an idea about my problem?

Thanks

Kris

SOLVED

there was a bridge between pin 7 and 8 of Noise OP.