3-30
ELECTRICAL TROUBLESHOOTING GUIDE
1. POWER SUPPLY (SMPS)
YES
no 5.3va
Power line of main PcB is short
replace F101 (same fuse)
NO
is the
F101 normal?
replace Bd101
NO
is Bd101 normal?
YES
replace r101
NO
is the r101 normal?
YES
YES
is d102 normal?
check or replace the d102
NO
is vcc (13v~27v)
supplied to ic101
Pin4?
YES
replace ic103
NO
is there about
2.5v at the ic103
Pin1?
YES
YES
replace ic102
NO
is the ic102 normal?
Содержание XV-BP1B
Страница 13: ...2 6 MEMO ...
Страница 54: ...3 41 3 Video Part 1 100 Full Color bar 7 9 10 8 11 14 CVBS_I 7 Y 8 Pb 9 Pr 10 ...
Страница 55: ...3 42 4 Video Part 2 100 Full Color bar 9 8 11 14 13 12 CVBS 11 COMP_Y 12 COMP_Pb 13 COMP_Pr 14 ...
Страница 56: ...3 43 5 AUDIO PART S PDIF 15 17 16 18 19 21 ASPDIF 15 ...
Страница 57: ...3 44 6 HDMI PART 17 16 18 19 21 20 HDMI_SDA 16 HDMI_SCL 17 HDMI_CLK 18 HDMI_DATA 19 ...
Страница 58: ...3 45 7 FRONT I F PART 21 20 T_TX 20 R_RX 21 ...
Страница 59: ...3 46 BLOCK DIAGRAMS 1 OVERALL BLOCK DIAGRAM ...
Страница 60: ...3 47 2 SMPS BLOCK DIAGRAM ...
Страница 61: ...3 48 3 SYSTEM BLOCK DIAGRAM ...
Страница 62: ...3 49 4 MT8520 DDR2 SDRAM NAND FLASH EEPROM BLOCK DIAGRAM ...
Страница 63: ...3 50 5 MT8520 HDMI ETHERNET USB AV BLOCK DIAGRAM ...
Страница 65: ...3 52 7 SMPS POWER SIGNAL BLOCK DIAGRAM ...
Страница 66: ...3 53 8 MAIN BOARD POWER SIGNAL BLOCK DIAGRAM ...
Страница 68: ...3 55 10 LEVEL SHIFTER CEC EFUSE BLOCK DIAGRAM ...
Страница 69: ...3 56 MEMO ...
Страница 71: ...3 60 3 59 2 POWER TIMER USB CIRCUIT DIAGRAM ...
Страница 72: ...3 61 3 62 3 MT8520 1 CIRCUIT DIAGRAM ...
Страница 73: ...3 63 3 64 4 MT8520 2 CIRCUIT DIAGRAM ...
Страница 74: ...3 65 3 66 5 KEY CIRCUIT DIAGRAM ...
Страница 75: ...3 67 3 68 6 TIMER CIRCUIT DIAGRAM ...
Страница 76: ...3 69 3 70 7 DDR2 SDRAM CIRCUIT DIAGRAM ...
Страница 77: ...3 71 3 72 8 NAND FLASH ETHERNET CIRCUIT DIAGRAM ...
Страница 78: ...3 73 3 74 9 AV HDMI CIRCUIT DIAGRAM ...
Страница 79: ...3 75 3 76 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 80: ...3 77 3 78 2 SMPS P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 81: ...3 79 3 80 3 KEY P C BOARD TOP VIEW 4 TIMER P C BOARD TOP VIEW BOTTOM VIEW BOTTOM VIEW ...
Страница 105: ...4 24 MEMO ...
Страница 106: ...4 26 4 25 CIRCUIT DIAGRAM ...
Страница 108: ...4 29 4 30 PRINTED CIRCUIT BOARD DIAGRAMS TOP VIEW ...
Страница 109: ...4 31 4 32 BOTTOM VIEW ...