Product Overview
Two pins in the brackets and a metal spring that butts up against the ceiling of the chassis keep the board in place. (See Figure 3.) You must remove the top front chassis panel to access the LED board. Carefully follow the top front chassis panel removal instructions to avoid damaging the LEDs or the LED board.
Figure 4 Internal Chassis Front View (Showing the LED Board Location)
LED board 
(mounted on horizontal plane in chassis)
LED board spring |
LEDs |
Blower connection |
H3898 |
Blower air ducts to interface processor compartment
4Cisco 7000 and Cisco 7507 LED Board Replacement Instructions