LC-37XD10E/RU
4 – 22
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 CN7501 on
the inverter unit?
NO
Check the connection between power
unit and inverter unit.
YES
Is the Fuse (F7501 or F7701) fuse in
the inverter unit circuit functioning?
NO
Replace the blown-out Fuse (F7501
or F7701) fuse on the inverter unit.
Turn on the power again.
If the fuse gets blown out again,
check the short-circuited spot.
YES
Check T7501 and T7701 and their
peripheral circuits as IC7501 and
their peripheral circuits.
YES
Is the VCC power supplied to the
control IC (IC7501) on the inverter
unit?
NO
Check the circuit connected with the
VCC terminal on the inverter control
IC (IC7501).
YES
Has each control signal come to
CN7502?
(INV-OFL, INV-OSC, INV-STE)
NO
Have INV-ON, INV-BRT and PWM-
SEL signal come to P1701(LB) in the
MAIN substrate?
NO
Check pins (89) and (19) of IC1710
(main PWB) .
YES
Is the specified control signal input-
ted at IC7501 (INV-CTL) on the
inverter unit.
NO
Check the line between CN7502 and
IC (IC7501).
YES
Are the Q7501 and Q7502 transis-
ters at the primary side of T7501
functioning?
NO
Check the power line of IC7501, its
peripheral circuits or replace IC7501.
YES
Is the secondary circuit of T7501
functioning.
NO
Replace T7501 or the T75*** trans-
former for the fluorescent tubes, or
check their peripheral circuits.
Содержание LC-37XD10
Страница 4: ...LC 37XD10E RU 1 1 LC37XD10E Service Manual CHAPTER 1 OPERATION MANUAL 1 SPECIFICATIONS ...
Страница 5: ...LC 37XD10E RU 1 2 2 OPERATION MANUAL ...
Страница 6: ...LC 37XD10E RU 1 3 ...
Страница 7: ...LC 37XD10E RU 1 4 ...
Страница 8: ...LC 37XD10E RU 1 5 3 DIMENSIONS ...
Страница 11: ...LC 37XD10E RU 2 3 7 Remove the 4 lock screws Detach the Speaker Angle 10 10 Speaker Angle Speaker Angle ...
Страница 14: ...LC 37XD10E RU 2 6 11 Remove the 5 lock screws Detach the Chassis Tray Unit 13 13 Chassis Tray Unit ...
Страница 62: ...LC 37XD10E RU 5 6 2 1 Block Diagram ...
Страница 83: ...LC 37XD10E RU 5 27 MEMO ...
Страница 85: ...LC 37XD10E RU 6 2 ...
Страница 86: ...LC 37XD10E RU 6 3 2 BLOCK DIAGRAM BLOCK DIAGRAM ...
Страница 87: ...LC 37XD10E RU 6 4 ...
Страница 88: ...LC 37XD10E RU 6 5 3 MAIN BLOCK DIAGRAM ...
Страница 89: ...LC 37XD10E RU 6 6 ...
Страница 90: ...LC 37XD10E RU 6 7 4 POWER BLOCK DIAGRAM POWER BLOCK DIAGRAM ...
Страница 91: ...LC 37XD10E RU 6 8 ...
Страница 94: ...LC 37XD10E RU 7 3 3 MAIN UNIT PRINTED WIRING BOARD MAIN Unit Side A ...
Страница 95: ...LC 37XD10E RU 7 4 ...
Страница 98: ...LC 37XD10E RU 7 7 MAIN Unit Side B ...
Страница 99: ...LC 37XD10E RU 7 8 ...
Страница 109: ...LC 37XD10E RU 7 18 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I POWER Unit Side B ...
Страница 112: ...LC 37XD10E RU 7 21 7 DIGITAL UNIT PRINTED WIRING BOARD 1 2 3 4 5 6 7 8 9 A B C D E F G H I J 10 DIGITAL Unit Side A ...
Страница 113: ...LC 37XD10E RU 7 22 11 12 13 14 15 16 17 18 19 20 ...
Страница 116: ...LC 37XD10E RU 7 25 1 2 3 4 5 6 7 8 9 A B C D E F G H I J 10 DIGITAL Unit Side B ...
Страница 117: ...LC 37XD10E RU 7 26 11 12 13 14 15 16 17 18 19 20 ...
Страница 120: ...LC 37XD10E RU 7 29 M E M O ...
Страница 122: ...LC 37XD10E RU 8 2 2 SCHEMATIC DIAGRAM MAIN Unit 1 8 ...
Страница 123: ...LC 37XD10E RU 8 3 ...
Страница 124: ...LC 37XD10E RU 8 4 MAIN Unit 2 8 ...
Страница 125: ...LC 37XD10E RU 8 5 ...
Страница 126: ...LC 37XD10E RU 8 6 MAIN Unit 3 8 ...
Страница 127: ...LC 37XD10E RU 8 7 ...
Страница 128: ...LC 37XD10E RU 8 8 MAIN Unit 4 8 ...
Страница 129: ...LC 37XD10E RU 8 9 ...
Страница 130: ...LC 37XD10E RU 8 10 MAIN Unit 5 8 ...
Страница 131: ...LC 37XD10E RU 8 11 ...
Страница 132: ...LC 37XD10E RU 8 12 MAIN Unit 6 8 ...
Страница 133: ...LC 37XD10E RU 8 13 ...
Страница 134: ...LC 37XD10E RU 8 14 MAIN Unit 7 8 ...
Страница 135: ...LC 37XD10E RU 8 15 ...
Страница 136: ...LC 37XD10E RU 8 16 MAIN Unit 8 8 ...
Страница 137: ...LC 37XD10E RU 8 17 ...
Страница 138: ...LC 37XD10E RU 8 18 AV Unit ...
Страница 139: ...LC 37XD10E RU 8 19 ...
Страница 140: ...LC 37XD10E RU 8 20 1 2 3 4 5 6 7 9 10 8 J A B C D E F G H I POWER Unit ...
Страница 141: ...LC 37XD10E RU 8 21 11 13 12 14 15 16 18 19 17 AND SHADED COMPONENTS SAFETY RELATED PARTS ...
Страница 142: ...LC 37XD10E RU 8 22 D TUNER Unit ...
Страница 143: ...LC 37XD10E RU 8 23 AND SHADED COMPONENTS SAFETY RELATED PARTS ...
Страница 144: ...LC 37XD10E RU 8 24 DIGITAL Unit 1 4 ...
Страница 145: ...LC 37XD10E RU 8 25 ...
Страница 146: ...LC 37XD10E RU 8 26 DIGITAL Unit 2 4 ...
Страница 147: ...LC 37XD10E RU 8 27 ...
Страница 148: ...LC 37XD10E RU 8 28 DIGITAL Unit 3 4 ...
Страница 149: ...LC 37XD10E RU 8 29 ...
Страница 150: ...LC 37XD10E RU 8 30 DIGITAL Unit 4 4 ...
Страница 151: ...LC 37XD10E RU 8 31 ...
Страница 152: ...LC 37XD10E RU 8 32 1 2 3 4 5 6 7 8 9 A B C D E F G H I J 10 KEY Unit ...
Страница 153: ...LC 37XD10E RU 8 33 R C LED Unit ...
Страница 154: ...LC 37XD10E RU 8 34 M E M O ...
Страница 187: ...LC 37XD10E 33 12 PACKING PARTS S1 S2 S2 S7 S6 S6 S3 S2 S4 S5 S5 S2 S8 ...
Страница 189: ...LC 37XD10E RU ...