Acer ASPIRE 5742 Service Manual page 195

Discrete (ATI)
Item
JLVDS1 Connect to LED / CCFL Panel
JSPK2
JKB1
JTP1 Connect to Touch pad (FFC)
JUSB2 Connect to Power USB Board
JCR1 Connect Card Reader Board (FFC)
Chapter 1
Description
Connect to Left Speaker
Connect to Keyboard
(FFC)
Item
JLED1 Connect to Powerboard
JLED2 Connect to Powerboard
(FFC)(PEW71/PEW91)
JP1 Connect to internal MIC
SW2/SW3 Left button / Right button
LED1/LED3 Power State Indicator
LED2/LED4 Battery Charging Indicator
Description
(FFC)(PEW51)
185