LG C1100 Service Manual page 105

8. CIRCUIT DIAGRAM
1 2
A
B
C
D
E
1 2
LGIC(42)-A-5505-10:01
3 4 5
VMEM
U401
YMU759B
R401 0 1
11
13MHZ_MIDI CLK1 HPOUT_R
4
10
MIDI_RESET _RST
30 HPOUT_L
C404
ADD00 A0
R402
31 12
EQ1
RD _RD
29
0.01u
MIDI_CS _CS 39K
5
R403 13
EQ2
IFSEL
10K
C405 R404
28
WR _WR
3
100p 0
MIDI_INT _IRQ
R417 150K
27 14
EQ3
DATA08 D0
26
2
DATA09 D1 EXT1
25 19
DATA10 D2 EXT2
24
DATA11 D3
23
DATA12 D4
22 17
DATA13 D5
SPOUT1
21
DATA14 D6
20 VBAT
DATA15 D7
C401
R408 3.3K
PLLC SPOUT2
6
18
1000p
C402 0.1u
VREF
9 R410 0
Type R412 SPVDD 15
16Poly 40Ploy
Part
32 SDOUT
10K
R413
U401 YMU759B YMU762
VDD C408
7
0
0.1u
C403 0.1u 16
R403 10K NA
VSS SPVSS
8
R412 10K 0 (16 Poly MIDI)
Iss.
3 4 5
6 7 8
VMEM
C409 39p
R405
SPKN
NA
U402
R406
MAX4684EUB
SPKP
1 10
NA V+ NO2
R407
2 9
NO1 COM2
0
3 8
COM1 IN2
R409
4 7
IN1 NC2
C410 47p
0
5 6
C406 C407 NC1 GND
Closed to Analog SW
47p 47p
SPK_RCV_SEL
R414
RECP
4.7
R415 100K
R416
RECN
4.7
C411 C412
47p 47p
Section Date
02/25
Designer
2004
02/25
Checked
2004
02/25
Approved
2004
Notice No. Date Name
LG Electronics Inc.
- 104 -
9 10
SPK_REC_N
SPK_REC_P
Sign & Name
Sheet/Sheets
C1100 (GB-1E)
MODEL
PARK S.J.
KIM Y. T.
KIM S.K. DRAWING
MIDI
NAME
CHO B.K.
DRAWING
REV. 1.0
NO.
A A
B
B
C
D
4/4
LG Electronics Inc.