LC-70UD1U
6 – 23
FRC operation check
Is triangular wave pulse sent to
TP9066 (VSOUT)?
NO
Is 1.5 V applied to pin 2 of FB9020?
Is 2.5 V applied to pin 2 of FB9004?
Is 1.05 V applied to pin 2 of FB9005?
Is 3.3 V applied to pin 2 of FB9013?
NO
Check the operation of IC6007.
Check the operation of IC8102.
Check the operation of IC8104.
Check the operation of IC8105.
YES
YES
Go to the section "T-Con operation
check ."
Is 1.5 V applied to pin 2 of FB9420?
Is 2.5 V applied to pin 2 of FB9404?
Is 1.05 V applied to pin 2 of FB9405?
Is 3.3 V applied to pin 2 of FB9413?
NO
Check the operation of IC6007.
Check the operation of IC8102.
Check the operation of IC8104.
Check the operation of IC8106.
YES
Do X9001 and X9401 oscillate at 27 MHz?
NO
Check the operation of IC9001
and IC9401.
YES
The programs of IC9002/IC9402 may be
damaged, or IC9002/IC9402 may be cor-
rupted.
Replace IC9002/IC9402 or rewrite the
ROM.
LVM operation check
Is the signal (LVDS) sent to pin 5 of
L5401?
NO
Is 1.2 V applied to pin 3 of FL5401?
Is 2.5 V applied to pin 3 of FL5402?
Is 3.3 V applied to pin 3 of FL5403?
NO
Check the operation of IC6002,
IC6007 and IC6013.
YES
YES
Go to the section "T-Con operation
check ."
Is CLK (Vx1) sent to pin 2 of R5547?
NO
Check the operation of IC4901
(Vx1-Rx).
YES
The program of IC5402 may be damaged,
or IC5402 may be corrupted.
Replace IC5402 or rewrite the ROM.
Содержание LC-70UD1U
Страница 6: ...LC 70UD1U 1 1 LC 70UD1U Service Manual CHAPTER 1 SPECIFICATIONS 1 SPECIFICATIONS ...
Страница 7: ...LC 70UD1U 2 1 LC 70UD1U Service Manual CHAPTER 2 OPERATION MANUAL 1 OPERATION MANUAL ...
Страница 8: ...LC 70UD1U 2 2 ...
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Страница 10: ...LC 70UD1U 2 4 ...
Страница 11: ...LC 70UD1U 3 1 LC 70UD1U Service Manual CHAPTER 3 DIMENSIONS 1 DIMENSIONS ...
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Страница 82: ...LC 70UD1U 8 5 SUPPLIED ACCESSORIES PACKING PARTS 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 ...