LG 60UH7700 Service Manual page 55

HP_ROUT
HP_ROUT_AMP
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 2016 LG Electronics Inc. All rights reserved.
Only for training and service purposes
EARPHONE AMP
H/P out R/C filter
HP_AMP
Close to Main SOC
HP_AMP
(ready for debugging) C6104
HP_AMP
C6100
HP_AMP
18pF
2.2uF
R6108 R6100 R6106
10V
0 10K 43K
C6110
0.01uF HP_AMP_NON
R6107
OPT
0
+3.3V_NORMAL
4.7K
R6105
SIDE_HP_MUTE
IC6100
TPA6138A2
HP_AMP
+INR +INL
1 14
C6109
HP_AMP
HP_AMP 18pF
R6104
-INR -INL HP_AMP 43K
HP_AMP
2 13
1% C6108 1%
C6106
10pF
OUTR OUTL 10pF
50V 3 12
50V
GND_1 UVP
4 11
+3.3V_NORMAL
MUTE GND_2
5 10
VSS VDD
6 9
HP_AMP
HP_AMP
C6105
C6102 CN CP
1uF
7 8
1uF
10V
10V
C6103
1uF
10V
HP_AMP
H/P out R/C filter
HP_AMP Close to Main SOC
C6101 (ready for debugging)
HP_AMP
2.2uF
R6101 R6109
10V
10K 0
HP_LOUT
C6111
HP_AMP_NON
0.01uF
R6110
OPT
0
HP_LOUT_AMP
HP_AMP
C6107
0.1uF
16V
K2H
HP_AMP
2014-11-22
61
LGE Internal Use Only