Lexus Repair: RPM meter and speedometer, lexus ls400, speedometer

Question
I've bought 94 Lexus LS400 a few moths ago. The card's runing good condition. Last week, I found RPM needle doesn't work event engine runing good.
Another thing is speedometer die too. But transmission shift to the all gears very smooth. I'm thinking I can fix by myself. How it paint and what sensor do I need to replace. Please help me. I do appreciated.

Answer
Hello, It is a little hard understanding your english but what you want to do is buy a repair manual from Lexus and follow the procedures for checking the speedo circuits. It could be the speedo head or maybe the sensor at the transmission. The best way to locate the sensor is to buy one so you know what you are looking for.