LG KF700Q Service Manual page 158

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
VREG_MOT_3.0V
U501 TC7SH86FS
TP501 1 5
LIN_PWM_MAG INA VCC
2
U502 TC7SH86FS
GND
TP502 1 5 3 4
LIN_PWM_FREQ INA VCC INB OUTY
2
GND
B B TP503 3 4
LIN_INVERTER INB OUTY
LIN_MOTOR_EN
LINEAR MOTOR DRIVER ( AUDIO AMP )
C C
R505 62K
R506 62K
D D
U505 TPA6205A1ZQVR
C508 47n R507 10K C3 A3
LINE_ON IN- VDD
C509 47n R508 10K C2 B3
LINE_OP IN+ VO+
TP505 B1 A1
SPK_AMP_EN _SHUTDOWN VO-
C1 B2
BYPASS GND
EUSY0335701
C511
220n
SPEAKER AMP
E E
F F
MLED6
MLED5
MLED4
1
MLED3 DIN3
2
MLED2 DIN2
3
MLED1 DIN1 U507
4
WLED_PWR VOUT RN5T662
5
C1P
6
C2P
7
C2M
VREG_CAM_2.8V
G G
LCD_BL_EN
STB_N
SUBPMIC_I2C_SCL
SUBPMIC_I2C_SDA
LCD BACKLIGHT DRIVER
H H
1 1 2 2 3 3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4 4 5 5 6 6
VREG_MOT_3.0V
C501 2200p
R501 100K
C503
U503 TPA6205A1ZQVR
1u
R502 100K C3 A3
IN- VDD
R503 100K C2 B3
IN+ VO+ MOTOR+
TP504 B1 A1
_SHUTDOWN VO- MOTOR-
C1 B2
BYPASS GND
R504 100K
C504
0.01u
C505 2200p
+VPWR
+VPWR
FB501
U504
NLAS5223BMNR2G
1 10
C507 C506 VCC NO2
1u 10u
2 9
SPK+ NO1 COM2
3 8
SPK_RCV+ COM1 IN2
4 7
IN1 NC2
SPK-
5 6
RCV+ NC1 GND
SPK+
C510
0.01u
RECEIVER SPEAKER SELECT
C514
C513
10u
SPM0204LE5-QB
G4
6
PWR
5
G3
C515 0.1u
4
G2
3
G1
C516 0.1u
2
OUT
1
MIC501
C519
+VPWR
1u
VREG_CAM_2.8V
VREG_CAM_1.8V
21
LDOUT1
20
VIN3
19
LDOUT2
18 MIC
NC1
17
NC2
16
NC3
15
NC4
VREG_LDO_TOUCH_2.8V
C523 C524 C525
4.7u 2.2u 2.2u
U508 BH28PB1WHFV
1 5
TOUCH_LDO_EN STBY SEL
2 6
GND BGND
3 4
+VPWR VIN VOUT
C526
470n
4 4 5 5 6 6
- 159 -
7 7 8 8 9 9
LGE Internal Use Only
VREG_MSMP_2.7V PM_ON_SW_N
C502
0.1u
501 502 503
1 2 3
KEY_ROW(0)
504 505 506
4 5 6
KEY_ROW(1)
507 508 509
7 8 9
KEY_ROW(2)
HOT501 510 HOT502
HOT4 0 HOT3
KEY_ROW(3)
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
SPK-
SPK_RCV-
SPK_RCV_SEL
RCV-
KEY MAP
+VPWR
LD501
LEWWS47PAZ
LD502
LEWWS47PAZ
MICBIAS KYPD_LED_EN
DNI
MIC1N
MIC1P
KEY BACK LIGHT LED (SIDE VIEW)
C527
470n
7 7 8 8 9 9
10 10 11 11 12 12
END
SIDE KEY
PRSB6.8C
CAMERA Double & LOCK KEY
CN501
1
SND
KEY_ROW(1)
2
KEY_ROW(2)
3
KEY_ROW(3)
4
KEY_COL(4)
5
CLR
OK
CN502
1
KEY_ROW(0)
2
KEY_COL(4)
3
U506
A3212EELLT-T
VREG_MSMP_2.7V VDD
G1
OUT G2
FOLDER_DETECT_N
C512
0.1u
FOLDER DETECT
10 10 11 11 12 12
LGE Internal Use Only
A A
E E
F F
G G
H H