LC-37SA1E/RU
4 – 24
Backlight failure to light up
Do all the fluorescent tubes light up?
NO
Check the individual fluorescent
tubes for light-up failure.
YES
Replace any defective fluorescent
tube (s) with new one (s).
YES
Is the power supplied to the inverter
unit? (24V) (CN7501 1-5pin)
NO
Check the connection between
power unit and inverter unit.
YES
Is the fuse (F7501) in the inverter unit
circuit functioning?
NO
Replace the blown-out fuse on the
inverter unit. Turn on the power
again.
If the fuse gets blown out again,
check the short-circuited
YES
Check drive trans and their peripheral
circuits as well as drive FET and their
peripheral circuits.
YES
Is the VCC power supplied to the
inverter control IC on the
inverter unit?
NO
Check the circuit connected with the
VCC terminal on the inverter control
IC .
YES
Are there control signals (STB) INV-
ON), OFL(INV-BRT), OSC) at LB
(CN7502) on the inverter unit?
NO
Check pins (5) and (7) of IC1710
(main PWB).
YES
Is the specified control signal inputted
at INV-CTL-IC(IC7501) on the
inverter unit?
NO
Check the line between LB(CN7502)
and
INV-CTL-IC(IC7501) .
YES
Are the DRIVE-FET at the primary
side of DRIVE-TRANS functioning?
(Q7528/Q7527/Q7526/Q7525)
NO
Replace INV-CTL-IC(IC7501) or
check its peripheral circuits.
YES
Is the secondary circuit of DRIVE-
TRANS functioning?
(T7501 •••T7505)
NO
RReplace the DRIVE-TRANS for
the fluorescent tubes, or check their
peripheral circuits.
Содержание LC-37SD1E
Страница 4: ...LC 37SD1E RU 1 1 LC 37SD1E Service Manual CHAPTER 1 OPERATION MANUAL 1 SPECIFICATIONS ...
Страница 5: ...LC 37SD1E RU 1 2 2 OPERATION MANUAL ...
Страница 6: ...LC 37SD1E RU 1 3 ...
Страница 7: ...LC 37SD1E RU 1 4 ...
Страница 8: ...LC 37SD1E RU 1 5 ...
Страница 9: ...LC 37SD1E RU 1 6 ...
Страница 10: ...LC 37SD1E RU 1 7 3 DIMENSIONS ...
Страница 20: ...LC 37SD1E RU 3 5 1 Select Serial COM X O K 2 Select Terminal 3 Choose the same options as the above picture ...
Страница 68: ...LC 37SA1E RU 5 3 2 Detailed ICs Information 2 1 IC1905 VHISII9021 1Q 2 1 1 Block Diagram ...
Страница 82: ...LC 37SA1E RU 5 17 7 VIN I VIN Terminal 8 Collector I Collector Terminal Pin No Pin Name I O Pin Function ...
Страница 85: ...LC 37SA1E RU 6 2 ...
Страница 86: ...LC 37SA1E RU 6 3 2 BLOCK DIAGRAM MAIN Unit 1 LC 26SD1E ...
Страница 87: ...LC 37SA1E RU 6 4 ...
Страница 88: ...LC 37SA1E RU 6 5 3 POWER BLOCK DIAGRAM POWER BLOCK DIAGRAM ...
Страница 89: ...LC 37SA1E RU 6 6 ...
Страница 92: ...LC 37SA1E RU 7 3 3 AV UNIT PRINTED WIRING BOARD 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I AV Unit SIDE A ...
Страница 93: ...LC 37SA1E RU 7 4 11 13 12 14 15 16 18 19 17 ...
Страница 96: ...LC 37SA1E RU 7 7 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I AV Unit SIDE B ...
Страница 97: ...LC 37SA1E RU 7 8 11 13 12 14 15 16 18 19 17 ...
Страница 98: ...LC 37SA1E RU 7 9 4 POWER UNIT PRINTED WIRING BOARD POWER Unit ...
Страница 99: ...LC 37SA1E RU 7 10 ...
Страница 104: ...LC 37SA1E RU 7 15 6 DIGITAL UNIT PRINTED WIRING BOARD 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I DIGITAL Unit SIDE A ...
Страница 105: ...LC 37SA1E RU 7 16 11 13 12 14 15 16 18 19 17 ...
Страница 108: ...LC 37SA1E RU 7 19 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I DIGITAL Unit SIDE B ...
Страница 109: ...LC 37SA1E RU 7 20 11 13 12 14 15 16 18 19 17 ...
Страница 112: ...LC 37SA1E RU 7 23 M E M O ...
Страница 114: ...LC 37SA1E RU 8 2 2 SCHEMATIC DIAGRAM 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 1 ...
Страница 115: ...LC 37SA1E RU 8 3 11 13 12 14 15 16 18 19 17 ...
Страница 116: ...LC 37SA1E RU 8 4 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 2 ...
Страница 117: ...LC 37SA1E RU 8 5 11 13 12 14 15 16 18 19 17 ...
Страница 118: ...LC 37SA1E RU 8 6 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 3 ...
Страница 119: ...LC 37SA1E RU 8 7 11 13 12 14 15 16 18 19 17 ...
Страница 120: ...LC 37SA1E RU 8 8 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 5 ...
Страница 121: ...LC 37SA1E RU 8 9 11 13 12 14 15 16 18 19 17 ...
Страница 122: ...LC 37SA1E RU 8 10 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I MAIN Unit 6 ...
Страница 123: ...LC 37SA1E RU 8 11 11 13 12 14 15 16 18 19 17 ...
Страница 124: ...LC 37SA1E RU 8 12 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I AV Unit ...
Страница 125: ...LC 37SA1E RU 8 13 11 13 12 14 15 16 18 19 17 ...
Страница 126: ...LC 37SA1E RU 8 14 ع POWER Unit ...
Страница 127: ...LC 37SA1E RU 8 15 ...
Страница 128: ...LC 37SA1E RU 8 16 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I D TUNER Unit ...
Страница 129: ...LC 37SA1E RU 8 17 11 13 12 14 15 16 18 19 17 AND SHADED COMPONENTS SAFETY RELATED PARTS ...
Страница 130: ...LC 37SA1E RU 8 18 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I DIGITAL Unit 1 ...
Страница 131: ...LC 37SA1E RU 8 19 11 13 12 14 15 16 18 19 17 ...
Страница 132: ...LC 37SA1E RU 8 20 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I DIGITAL Unit 2 ...
Страница 133: ...LC 37SA1E RU 8 21 11 13 12 14 15 16 18 19 17 ...
Страница 134: ...LC 37SA1E RU 8 22 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I DIGITAL Unit 3 ...
Страница 135: ...LC 37SA1E RU 8 23 11 13 12 14 15 16 18 19 17 ...
Страница 136: ...LC 37SA1E RU 8 24 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I DIGITAL Unit 4 ...
Страница 137: ...LC 37SA1E RU 8 25 11 13 12 14 15 16 18 19 17 ...
Страница 138: ...LC 37SA1E RU 8 26 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I OPERATION Unit ...
Страница 139: ...LC 37SA1E RU 8 27 11 13 12 14 15 16 18 19 17 ...
Страница 140: ...LC 37SA1E RU 8 28 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I R C LED Unit ...
Страница 141: ...LC 37SA1E RU 8 29 11 13 12 14 15 16 18 19 17 ...
Страница 142: ...LC 37SA1E RU 8 30 M E M O ...
Страница 168: ...LC 37SA1E RU 26 12 PACKING PARTS S1 S2 S2 S6 S3 S9 S2 S4 S5 S2 ...