LG 32LF550B Service Manual page 27

RS-232C 4PIN
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright © 2015 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
RS-232C 4PIN
RS232C_DEBUG_4P
+3.5V_ST
P4000
12507WS-04L
VCC
1
R4000
100 PM_RXD
2
PM_RXD
GND
3
R4001
100 RM_TXD
4
PM_TXD
5
GND
MSTAR DEBUG 4PIN
L14_CA_M1A 2014/05/22
RS232C_MSTAR_DEBUG_4P 40
LGE Internal Use Only