all help appreciated.... instrument warning lights all work, stop, oddo, indicators, lights on, main beam etc, but no basic illumination. all lighting controls work, headlamp on warning light sound etc. Have checked all bulbs, four bulbs in central positions (behind the dials) test ok elsewhere but do not illuminate in situ. I've by-passed the dashboard dimmer rotary switch, still no illumination. You're may last hope... Thanks in advance
