LG -A230 Service Manual page 60

CIRCUIT
TP1
WAVEFORM
LGE Internal Use Only
BT_RST_N
INDICATOR_1
HS_JACK_DET
INDICATOR_2
UART_TX
26MHz
UART_RX
X100 DSX321G-26M
BT_UART_RX
4 3
BT_UART_TX
1 2
USB_DP
EXXY0027001 USB_DM
TP1
Connect GND plane directly
Figure 4.2.2
Figure 4.2.3
H10 USIF2_TXD_MTSR
J9
USIF2_RXD_MRST
H9
USIF2_RTS_N
J10
USIF2_CTS_N
A4
USIF1_TXD_MTSR
B5
USIF1_RXD_MRST
A5
USIF1_RTS_N
B4
USIF1_CTS_N
K13
DPLUS
K14
DMINUS
B13
XOX
A13
XO
- 60 - Copyright © 011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
Only for training and service purposes