mackey58 Posted September 20, 2015 Share Posted September 20, 2015 In what part of the dash is the bulb for the fiber optics located?I can trace the fiber ribbon but can't find the bulb is it by the dash light switch or in by the speedo ? Quote Link to comment https://www.bigmacktrucks.com/topic/41867-rd690a-fibe-optic-lamp/ Share on other sites More sharing options...
Outbehindthebarn Posted October 20, 2015 Share Posted October 20, 2015 On my Superliner, there are two bulbs. One located on a round gray 'stand' about 2.5" diameter behind/beneath speedo. The second bulb lights the HVAC and is located on the right side of the HVAC unit. Neither of mine work. Bulbs light but the ribbons are shot. 1 Quote Fun is what they fine you for!My name is Bob Buckman sir,. . . and I hate truckers. Link to comment https://www.bigmacktrucks.com/topic/41867-rd690a-fibe-optic-lamp/#findComment-308203 Share on other sites More sharing options...
mackey58 Posted October 22, 2015 Author Share Posted October 22, 2015 They work but was thinking about putting led 194 bulbs in them to brighten them up more Quote Link to comment https://www.bigmacktrucks.com/topic/41867-rd690a-fibe-optic-lamp/#findComment-308342 Share on other sites More sharing options...
mackey58 Posted October 22, 2015 Author Share Posted October 22, 2015 And thank you for the help I ll have to look better Quote Link to comment https://www.bigmacktrucks.com/topic/41867-rd690a-fibe-optic-lamp/#findComment-308343 Share on other sites More sharing options...
mackey58 Posted October 22, 2015 Author Share Posted October 22, 2015 And thank you for the help I ll have to look better Quote Link to comment https://www.bigmacktrucks.com/topic/41867-rd690a-fibe-optic-lamp/#findComment-308344 Share on other sites More sharing options...
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