Lcd 故障 - LG KT878 Service Manual

4.5 LCD 故障
测试点
电路图
EVR14S03Q030050R
9
AP_LCD_CLOCK
INOUT_B1
8
AP_LCD_VSY NC
INOUT_B2
7
AP_LCD_HSY NC
INOUT_B3
6
AP_LCD_EN
INOUT_B4
EVR14S03Q030050R
9
AP_LCD_D15
INOUT_B1
8
AP_LCD_D13
INOUT_B2
7
AP_LCD_D11
INOUT_B3
6
AP_LCD_D9
INOUT_B4
EVR14S03Q030050R
9
AP_LCD_D12
INOUT_B1
8
AP_LCD_D8
INOUT_B2
7
AP_LCD_D7
INOUT_B3
6
AP_LCD_D5
INOUT_B4
EVR14S03Q030050R
9
AP_LCD_D3
INOUT_B1
8
AP_LCD_D1
INOUT_B2
7
AP_LCD_D14
INOUT_B3
6
AP_LCD_D10
INOUT_B4
EVR14S03Q030050R
9
AP_LCD_D6
INOUT_B1
8
AP_LCD_D4
INOUT_B2
7
AP_LCD_D2
INOUT_B3
6
AP_LCD_D0
INOUT_B4
1
AP_LCD_CLOCK_S
INOUT_A1
2
AP_LCD_VSY NC_S
INOUT_A2
3
AP_LCD_HSY NC_S
INOUT_A3
4
AP_LCD_EN_S
INOUT_A4
FL1401
1
AP_LCD_D15_S
INOUT_A1
2
AP_LCD_D13_S
INOUT_A2
3
AP_LCD_D11_S
INOUT_A3
4
AP_LCD_D9_S
INOUT_A4
FL1402
1
AP_LCD_D12_S
INOUT_A1
2
AP_LCD_D8_S
INOUT_A2
3
AP_LCD_D7_S
INOUT_A3
4
AP_LCD_D5_S
INOUT_A4
FL1403
1
AP_LCD_D3_S
INOUT_A1
2
AP_LCD_D1_S
INOUT_A2
3
AP_LCD_D14_S
INOUT_A3
4
AP_LCD_D10_S
INOUT_A4
FL1404
1
AP_LCD_D6_S
INOUT_A1
2
AP_LCD_D4_S
INOUT_A2
3
AP_LCD_D2_S
INOUT_A3
4
AP_LCD_D0_S
INOUT_A4
FL1405
- 104 -
AP_VCC_2V8
AP_WLED_PWR
WLED_1
WLED_2
WLED_3
WLED_4
WLED_5
WLED_6
AP_LED_RST
AP_LCD_VSY NC_S
AP_LCD_HSY NC_S
AP_LCD_CLOCK_S
AP_LCD_EN_S
AP_LCD_D15_S
AP_LCD_D14_S
AP_LCD_D13_S
AP_LCD_D12_S
AP_LCD_D11_S
AP_LCD_D15_S
AP_LCD_D10_S
AP_LCD_D9_S
AP_LCD_D8_S
AP_LCD_D7_S
AP_LCD_D6_S
AP_LCD_D5_S
AP_LCD_D4_S
AP_LCD_D3_S
AP_LCD_D2_S
AP_LCD_D1_S
AP_LCD_D0_S
AP_LCD_D4_S
AP_LCD_SDO
AP_LCD_SCL
AP_LCD_CS
AP_LCD_SDI
C1504 C1506
0.1u
4.故障解决
CN2
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3
2
1
ENBY0042001
0.1u