SA-609 Satnav system help

Dear Group,
My SA-609 Sat Nav CD system has an annoying intermittent fault.
Sometimes it powers up and other times the lights remain out on the unit and
it doesn't work. I'm fairly sure the CD unit has the fault.
I'm wondering if anyone knows of a place that repairs these units.
Or if there is a replacement item.
Let me know by Private reply.

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