LG 47LM5800 Service Manual page 38

Headphone
R1500
C
3.3K
B
HEAD_PHONE_POP
SIDE_HP_MUTE
Q1500
MMBT3904(NXP)
E
HEAD_PHONE_POP
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
*Option : HEAD_PHONE
HEAD_PHONE
HP_LOUT
C1500 OPT C
HEAD_PHONE
10uF C1502
R1501
Q1502 B
16V 1000pF
1K
50V MMBT3904(NXP)
+3.5V_ST
HEAD_PHONE_POP
E
E
HEAD_PHONE_POP
Q1501
MMBT3906(NXP)
B
C
HEAD_PHONE
HP_ROUT
C1501 OPT C
HEAD_PHONE
10uF C1503
R1502
Q1503 B
16V 1000pF
1K MMBT3904(NXP)
50V
HEAD_PHONE_POP
E
E
Q1504
MMBT3904(NXP) HEAD_PHONE
B HEAD_PHONE_POP
JK1500
+3.3V_Normal KJA-PH-0-0177
C
GND 5
R1504
L 4
10K
R1503
1K DETECT 3
HP_DET
HEAD_PHONE
R 1
E
Q1505
MMBT3904(NXP)
B HEAD_PHONE_POP
HEAD_PHONE_32LS3500
C JK1500-*1
PEJ031-01
GND 5
L 4
DETECT 3
R 1
GP4L_S7LR2 2011/10/04
HEADPHONE 15
LGE Internal Use Only