LG KU250 Service Manual - Page 64
Audio, Select_spk&rcv
View all LG KU250 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 64 highlights
3. TECHNICAL BRIEF AUDIO SELECT_SPK&RCV +VPWR C410 0.01u SPKSPK_RCV- RCV- R422 10 U401 NLAS5223BMNR2G 1 VCC 10 NO2 2 NO1 9 COM2 3 COM1 8 IN2 4 IN1 7 10 NC2 5 NC1 6 GND R421 SPK+ SPK_RCV+ RCV_EN_N RCV+ REV_B EVL14K02200 VA414 EVL14K02200 VA412 MIC REV_B : SUMY0010301 --> SUMY0003802 MIC400 OB4-15L42-C33L 1 2 R424 2.2K C416 10u C417 47p MICBIAS C418 0.1u C419 0.1u MIC1P MIC1N C420 39p C421 39p R425 2.2K INSTPAR INSTPAR PSD05-LF D403 PSD05-LF D404 REV_B : EDTY0008606 --> EDTY0008601 Figure 1.27 Audio part schematics - 65 -
3. TECHNICAL BRIEF
- 65 -
REV_B
AUDIO
SELECT_SPK&RCV
R422
10
R421
10
VA412
EVL14K02200
VA414
EVL14K02200
3
COM1
9
COM2
6
GND
IN1
4
IN2
8
5
NC1
NC2
7
NO1
2
NO2
10
1
VCC
U401
NLAS5223BMNR2G
0.01u
C410
SPK_RCV+
RCV_EN_N
SPK_RCV-
RCV-
RCV+
SPK-
SPK+
+VPWR
REV_B : EDTY0008606 --> EDTY0008601
MIC
REV_B : SUMY0010301 --> SUMY0003802
C421
39p
C420
39p
C419
0.1u
D403
PSD05-LF
INSTPAR
PSD05-LF
D404
INSTPAR
2.2K
R424
47p
C417
R425
2.2K
1
2
OB4-15L42-C33L
MIC400
C418
0.1u
10u
C416
MICBIAS
MIC1P
MIC1N
Figure 1.27 Audio part schematics