LG F1200 Service Manual page 106

1 2 3
A
1.5V_CORE 2.8V_DSP 2.8V_DSP
B
C548 C545
0.1u 0.1u
B6
PS
TP522 J6
MIDI_CS CS_B_SCS
H4
A(2) A2
J5
A(1) A1_RXD
R569
K6
AD A0_DATA_TXD
K7
_WR 0 WR_B_SCLK
J7
_RD RD_B_SPIMODE
C D(0:7)
K8
D0_SERINIT
J8
D1
H10
D2
H9
D3
G10
D4
G9
D5
F10
D6
F9
D7 U506
UPD9993
TP521 E10
MIDI_INT INT_SG_B
F8
INT_DSP_B
B8
BCLK
A8
LRCLK
A7
ASI
B7
ASO
A5
TRSCK
B5
CLK8K
A4
D RDATA
D9
VIBRATOR VIB
C10
LED
K3
PO0
J3
PO1
K4
PO2
J4
PO3
E
F
U500
1
VIN
2
EN1
3
EN2
4
BYP
5
G C509 NC1
0.01u
H
1 2 3
4 5 6
HSOL
HSOR
C544
0.1u
R528
62K
C534
1u
C547
1000p
R527
62K
E9
RESET_B DSP_RESET
C546 1000p
H2
CLKIN MCLK U504 LM4809LD
7 8
VDD VOUT1
C543 4.7u
C1 C540 1u R533 15K 1
LINEOUT_L VIN1
6
VOUT2
C537 1u R531 15K 5
VIN2
C542 4.7u
F1
LINEOUT_R
2 3
BYPASS GND
4 9
HP_AMP_EN _SHDN BGND
E2
VREF
C538
220n
D2
IREF
R536 C541 R520 R534
A1
47K 47K
SHORT_K1 56K 220n
K1
SHORT_A1
A10
SHORT_K10
K10
SHORT_A10
B1
NC8
J1
NC9
A2
NC10
B2
C511 U501 TPA2005D1GQYR
NC11
J2 R518 R516 D1 B4
NC12 IN- VDD1
K2 C4
NC13 1K 0.1u 15K VDD2
C3 B1
NC14 NC
D3 R517 C1
NC15 IN+
E3 A4
NC16 15K VO-
F3
NC17
G3 A1 D4
NC18 C512 C533 _SD VO+
8200p 0.1u
C2
TM0
F2
TM1
B3
TM2
A3
TM3
B4
TM4
SPK_EN
C532 U503 TPA2005D1GQYR
R532 R529
D1 B4
IN- VDD1
C4
1K 0.1u 15K VDD2
B1
NC
R530
C1
IN+
A4
15K VO-
A1 D4
C536 C535
_SD VO+
8200p 0.1u
R542
MICBIAS
1K
C551 10u
10u C550
MIC2211-FMBML C515
R525 47
10
VOUT1 MICP
0.1u
9
VOUT2
8 C514
NC3 C507 C508 R526 47
2.2u 2.2u MICN
7
NC2 0.1u
6
GND
11
BGND
4 5 6
- 105 -
7 8 9
C568
NA
C569 C539 INSTPAR
R500
NA 1u HSBIAS
330
C500 C501 C576
47p 10u 10u
U505
MAX4684EBC
L502
C4 C2
MIDI_EN
NO1 IN1
100nH R512 100nH
L501 HSMIC
A4 A2
C526 10u
NO2 IN2 R511
100nH
C1 C3
33
NC1 COM1
C527 10u
R510
A1 A3
NC2 COM2
33
R519 C528 C529
NA 47p 47p VA509
VA508 AVL5M02-200
AVL5M02-200
C505 C506 C502
47p 47p 1000p
C525 C519
1u 10u
R507
SPKL_N JACK_DET
1K
R508
SPKL_P HOOK_DET
120
C510 C524
47p 47p
VA500
C504
AVL5M02-200
47p
C521 C520
1u 10u
SPKR_N
SPKR_P
C522 C523
47p 47p
R541
R543 EARP
100nH
2.4K
C516
47p
MIC500 R524
EARN
1 100nH
C553
47p 2
C517 C549
OB4-15L42-C33L 27p 27p
R544 C552 C554
1.2K 47p 47p
Changed by: Date Changed:
mentor 2004-09-1
7 8 9
8. CIRCUIT DIAGRAM
10 11 12
A
B
UCLAMP0501H
D503
CN500
13
15 VA504
1 AVLC14S02050
2
3 VA505
4 AVL5M02-200
5
6
7 R501 120
JACK_TYPE
8
C
9 R502 120
KBR(1)
10 R503 120
KBR(2)
11 R504 120
KBR(3)
12 R505 120
KBC(5)
14
16 VA506
AVLC14S02050
VA507
AVLC14S02050
VA503
AVLC14S02050
D
VA501
AVL5M02-200
E
F
R549
RCV_P
0
C557
47p
R550
RCV_N
0
C555 C556
27p 27p
G
H
Engineer:
J.Y. YEON
LG Electronics
Drawn by:
S.R. LEE
R&D CHK: Y. J. PARK TITLE: Size:
F1200
A3
DOC CTRL CHK:
12 1 8 A
Rev_1.0
MFG ENGR CHK:
Time Changed: QA CHK: REV: v1.0 Drawing Number: Page:
3:07:35 pm 5/5
10 11 12