How do I change the lamp behind the left side speedometer gauge? on 2004 Lexus IS300

The left side of my speedometer gauge is dark and it is impossible to see the speedometer between 40 and 75 mph at night. What is the access point and how do I get to the lamp that needs to be changed?

Asked by for the 2004 Lexus IS300
The instrument cluster has to be removed to get access to the bulbs.Labor guide says .6 hours so it is simple. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate