Sharp Aquos LC-45GD1E, Service Manual, Page: 68 / 281

68
TU-45GD1E
LC-45GD1E
TROUBLE SHOOTING TABLE
(Continued)
The screen is partially whitish or dark. (LCD power supply)
YES
YES
NO
NO
Is the gradation pattern displayed normally
when setting PATTERN1 of PATTERN
PAGE1 in the adjustment process menu to
02? (Is it whitish or dark?) When checking the picture
by connecting the AVC
system, the whole screen is
whitish or dark.
Remove the FPC connected to
SC4701, SC4702, SC6801 and
SC6802 (to prevent the panel from
being damaged).
Check the AVC.
Check the voltages supplied to the
panel:
Pin (2): VH0 7.47V
Pin (3): VH31 9.48V
Pin (4): VH63 9.74V
Pin (5): VH95 10.11V
Pin (6): VH127 10.47V
Pin (7): VH159 10.93V
Pin (8): VH191 11.41V
Pin (9): VH247 12.30V
Pin (10): VH255 14.2V
Pin (11): VLS 15V
Pin (30): VSH 3.3V
Pin (64): VL0 7.42V
Pin (63): VL31 5.32V
Pin (62): VL63 4.93V
Pin (61): VL95 4.53V
Pin (60): VL127 4.06V
Pin (59): VL159 3.55V
Pin (58): VL191 3.06V
Pin (57): VL247 0.99V
Pin (56): VL255 0.28V
Pin (76): VGH Square wave (32V-15V)
Pin (78): VGL -7V