LG BD550 Service Manual page 16

DIGITAL DISPLAY & MEDIA TRAINING MASTER
1. diStorted Picture ........................................................................................................................... 3-2
2. no Picture .......................................................................................................................................... 3-7
3. Picture color ................................................................................................................................. 3-12
4. noiSe/audio ProBleMS .................................................................................................................. 3-14
5. MiScellaneouS ................................................................................................................................ 3-17
6. Blu-ray Player ............................................................................................................................... 3-26
7. netFliX ............................................................................................................................................... 3-27
8. youtube ................................................................................................................................................ 3-32
9. cineManoW ....................................................................................................................................... 3-33
10. hoMe link .......................................................................................................................................... 3-39
11. WireleSS netWork SetuP ........................................................................................................... 3-53
12. vudu .................................................................................................................................................... 3-60
13. PicaSa ................................................................................................................................................. 3-63
14. Pandora............................................................................................................................................. 3-64
15. accuWeather .................................................................................................................................. 3-67
ONE POINT REPAIR INSTRUCTION
1. no PoWer ProBleM ....................................................................................................................... 3-68
2. vFd doeS not diSPlay or no BootinG When you turn on the PoWer Button ....... 3-70
3. no BootinG When you turn on the PoWer Button .......................................................... 3-71
4. audio outPut iS SMall or no audio outPut ........................................................................ 3-74
5. no connection When you try to oPerate netWork contentS.................................. 3-75
6. ShoWinG Bad color, no outPut or MiXed color on the Screen uSinG hdMi) ....... 3-76
7. no connection When you try to oPerate netWork contentS With WireleSS ................... 3-77
WAVEFORMS
............................................................................................................................................. 3-78
1. SySteM Part-1 .................................................................................................................................. 3-78
2. SySteM Part-2 (SySteM MeMory) .............................................................................................. 3-79
3. video Part-1 (100% Full color-Bar) ........................................................................................ 3-80
4. video Part-2 (100% Full color-Bar) ........................................................................................ 3-81
5. audio Part (S/PdiF) ......................................................................................................................... 3-82
6. hdMi Part .......................................................................................................................................... 3-83
7. MicoM i/F Part .................................................................................................................................. 3-84
BLOCK DIAGRAMS
1. SySteM Block diaGraM ................................................................................................................ 3-85
2. SMPS Block diaGraM ..................................................................................................................... 3-86
3. PoWer Block diaGraM ................................................................................................................. 3-87
4. Front MicoM Block diaGraM ..................................................................................................... 3-88
5. Main audio/video Block diaGraM ............................................................................................. 3-89
6. Front tiMer Block diaGraM ...................................................................................................... 3-90
7. WiFi Module Block diaGraM ....................................................................................................... 3-91
CIRCUIT DIAGRAMS
1. SMPS - PoWer circuit diaGraM.................................................................................................. 3-93
2. Main - Main PoWer circuit diaGraM ......................................................................................... 3-95
3. Main - cPu 1 circuit diaGraM ...................................................................................................... 3-97
4. Main - cPu 2 circuit diaGraM ...................................................................................................... 3-99
5. Main - cPu 3 circuit diaGraM .................................................................................................... 3-101
6. Main - ddr2, nand, cP circuit diaGraM ................................................................................. 3-103
7. Main - BcM7630 Front end circuit diaGraM ........................................................................ 3-105
8. Main - audio/video outPut circuit diaGraM ....................................................................... 3-107
9. Front - tiMer circuit diaGraM ................................................................................................ 3-109
10. WiFi - uSB_GPio_StraP circuit diaGraM ............................................................................... 3-113
11. WiFi - PoWer & control circuit diaGraM ............................................................................ 3-115
12. WiFi - rF antenna circuit diaGraM ......................................................................................... 3-117
CIRCUIT VOLTAGE CHART
PRINTED CIRCUIT BOARD DIAGRAMS
1. Main P.c.Board .............................................................................................................................. 3-121
2. SMPS P.c.Board ............................................................................................................................. 3-123
3. Front P.c.Board ........................................................................................................................... 3-125
2010
SECTION 3
ELECTRICAL
CONTENTS
................................................................................................. 3-68
................................................................................................................................. 3-85
............................................................................................................................... 3-93
............................................................................................................... 3-119
........................................................................................ 3-121
......................................................................... 3-2
3-1