- HP Laserjet Enterprise CP4020/CP4520 Manual

Interconnect board (ICB)

Before proceeding, remove the following components:

●

Formatter. See

Formatter PCA on page 78.

●

Upper-left cover. See

Upper-left cover on page 96.

●

Power-supply cover. See

Power-supply cover on page 98.

●

Front-top cover. See

Front-top cover on page 100.

●

Rear-top cover. See

Rear-top cover on page 102.

●

Rear cover. See

Rear cover on page 112.

Remove the ICB

WARNING! Do not remove the ICB from a product and then install it into a different product. Failure

to follow this warning will result in severe damage to that product and cause it to be unusable. HP

recommends that if you remove and replace the ICB, you should destroy the discarded ICB so that it

can not accidentally be installed in a different product.

CAUTION: ESD-sensitive part.

1. Disconnect two connectors (callout 1), remove two screws (callout 2), and remove the test-button

clip (callout 3).

Figure 2-126 Remove the ICB (1 of 2)

ENWW Internal assemblies 153