42L84A-CWZ Audio Codec IC for MacBook 14 (A2442, Late 2021)

Name: 42L84A-CWZ Audio Codec IC for MacBook 14 (A2442, Late 2021)
Brand: Apple
SKU: IP71290
Price: 8.92 USD

Apple · SKU IP71290 · Fits 1 model

$8.92

per unit

Volume pricing
Quantity	Unit price	Saving
	$8.92
	$8.47	−5%
	$8.03	−10%

Ships from Shenzhen, China. Check rates for your country
No sales tax added at checkout
Shipping & returns
Ask about fit before ordering

Shipping weight 0.01 kg

Compatible with 1 model

Match the model number printed on the device (Settings → About, or on the back) before ordering.

MacBook Pro 14-inch 2021 (A2442)A2442

Details

A MacBook comes in with no sound from the speakers or headphone jack, and the output device list in settings looks wrong. When the board is the problem, the audio codec is high on the list, and this 49-pin BGA chip (42L84A-CWZ, WBBOGM2420) is listed for the A2442.

The listing names the MacBook 14 (A2442, late 2021) as the compatible model.

When to look at the codec

No sound from speakers or the headphone jack.
Microphones dead in calls.
A shorted codec supply rail.
Corrosion after a spill on the keyboard.

Working on a MacBook board

Laptop boards are big heat sinks, so preheat from below before using hot air. Shield nearby parts and connectors, lift the old chip, level the pads and fit the new one with fresh flux. Clean any spill residue from the area with isopropyl alcohol first, because corrosion under the old chip is a common cause of the fault.

Confirm the A number on the bottom case before ordering. The listing calls the model a MacBook 14 with M1; A2442 is usually sold as the 14-inch MacBook Pro, so check your machine.