LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
- 72 -
Figure . Audio part schematics
1%
Rev.1.0.1
Rev.1.0.3
Audio AMP
SELECT_SPK&RCV
Rev.1.0.3
Rev.1.0.1
Rev.1.0.1
rev.1.0.2
1%
U301
FSA2267L10X
9
1A
1B0
1
1B1
2
1S
8
2A
6
3
2B0
4
2B1
2S
7
GND
51
0
VCC
C318
0.1u
R323
R316
100K
0
NA
C326
100K
R313
100K
R312
R315
12ohm
C305
1u
C315
0.1u
0.1u
C314
R318
R320
10K
FB302
BLM15BB750SN1J
10K
BLM15BB750SN1J
FB301
C316
15p
C317
C304
15p
0.01u
C327
R319 0
NA
TPA6205A1DRBR
2
BYPASS
7
GND
IN+
3
IN-
4
9
PGND
VDD
6
5
VO+
8
VO-
_SHUTDOWN
1
U302
R317
12ohm
100K
R322
LINE_OP
+VPWR
LINE_ON
SPK_AMP_EN
RCV+
RCV-
SPK_EN
+VPWR
SPK_RCV-
Rev.D
Rev.1.0.3
rev.1.0.3
MMI CONNECTOR
p
680K
R506
6.8CST2R
6.8CST2R
6.8CST2R
3
4
CN502
1
2
22
3
4
5
6
7
8
9
1
10
11
12
13
14
15
16
17
18
19
2
20
21
CN501
HSEJ 18S04 25R
VLC14S02050
9p
100
R502
VLC18S02003
47n
C504
9p
100
VLC18S02003
R503
u
VLC14S02050
VLC14S02050
470K
PSD12-LF
R505
0.01u
SD05-LF
VLC14S02050
EAR_MIC2P
VLC14S02050
HPH_L
HPH_R
USB+_RINT
USB-_RADC
EAR_SENSE_N
VBATT
UART_TX
USB_VBUS
UART_RX_IN
VBAT_SENSE
REMOTE_PWR_ON
Z3X-BOX.COM
Содержание CU720 Black
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