LG DS80QY.DDEULLK Service Manual

3-7
Copyright © 2022 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
FL2004
1
2
3
4
TP2047
TP2053
CN2001
12507WS-H12G
1.25mm, Straight type
EAG64089812
1
VDD
2
GND
3
WOBL
4
7668_RST
5
GND
6
BT_RST
7
VDD
8
WOWL
9
GND
10
USB_DP
11
USB_DN
12
VDD
C2018
100nF
DGND
C2061
10pF
NC
C2012
10pF
R2028
4.7
R2020 33
C2020
10pF
DGND
C2065
22uF
R2022 33
R2029
4.7
C2066
22uF
R2021 33
C2060
10pF
NC
R2023 33
C2015
100nF
C2026
100nF
TP2051
DGND
MT7668_WOWL
D2003
DF3D6.8MS
3
1
2
MT7668_WOBLE
C2027
100nF
TP2048
D2001
DF3D6.8MS
3
1
2
TP2050
MT7668_BT_RST
MT7668_RST_N
MT8532_USB_DP_P2
C2028
100nF
TP2049
MT8532_USB_DM_P2
WIFI_3V3
TP2046
TP2045
12.06.
Insert C2060,C2061
for EMC
close to connecter
close to connecter
ONE POINT REPAIR GUIDE
2. NO SOUND
2-1. BLUETOOTH
2-1-1. Solution
Replace Bluetooth module/ MAIN board.
2-1-2. How to troubleshoot (Countermeasure)
1) Please check status of Wi-Fi / Bluetooth cable connection. (at CN2001 and module)
2) Please check WIFI_3V3 (TP2051 or pin1, 7, 12 of CN2001).
2-a)
If Wi-Fi_3V3 is OK, please check USB_DP, USB_DM (TP2046 or pin10, TP2045 or pin11 of CN2001).
2-b) If no signal, please replace MAIN board.
2-1-3. Service hint (Any picture / Remark)
< MAIN board bottom view >
TP2045
TP2045
TP2051
TP2051
TP2046
TP2046

LG DS80QY.DDEULLK Specifications

General

Brand	LG
Model	DS80QY.DDEULLK
Category	Speaker System
Language	English