1984-1988 Corvette Instrument Panel Royal Premium Power Supply (New) Tester

1984-1988 Corvette Instrument Panel Royal Premium Power Supply (New) TesterNew Royal Premium Replacement Power Supply The internal power supply in the Digital Cluster is a common source of problem with the Digital Cluster. Electrolytic capacitors dry out then short, the switching transistor leads break internally, and failed alternators and 24V jump starts can cause overvoltage which destroys the Varistor. This is a completely redesigned, NEW, modern power supply which is an exact replacement for the factory power supply.

One or more analog gauges is malfunctioning

The text on the buttons disappears at night / no panel button illumination

10 - Replacement switches - These are the exact part GM used in the CJ2 controller

Note:  1986 panels have the up arrow in the upper left corner of the panel

The cluster shows random gibberish or "crawling" segments on the displays

Replacement Dimmer Transistor

12 pin Male connector (bottom board)

You have replaced the internal board connector set and photocell

difficult or impossible to read (faded polarizing film)

The kit also includes a replacement dimmer transistor and electrolytic cap

They are the same color and the same intensity as the factory bulbs

Burn-In Mode for automated and extended testing