Sharp LC-52LE920UN - Chapter 6. Troubleshooting

CHAPTER 6. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
LC-52LE920UN/LC-60LE920UN
| No video (1)
| COMPOSITE: No external input video [INPUT-2] |
| Is INPUT-2 selected on the input select menu screen? |
4 NO
Select INPUT-2 on the input select menu
screen for the right input signal.
Vv YES
Is there the COMPOSITE signal input at pin (AE29) of 1C3302
(CPU)?
' NO
Check the line between pin (3) of J505 and pin
(AE29) of 1C3302.
' YES
Are the LVDS signal outputs at the LVDS ist channel and 2nd channel of 1C3302? NO
LVDS_TX_0_DATA2_P/N (C16/D16), LVDS_TX_0_DATA3_P/N (C18/D18),
LVDS_TX_0_DATA4_P/N (C19/D19), LVDS_TX_0_CLK_P/N (C17/D17),
LVDS_TX_1_DATAQ_PIN (A14/B14), LVDS_TX_1_DATA1_PYN (A15/B15),
LVDS_TX_1_DATA2_P/N (A16/B16), LVDS_TX_1_DATA3_P/N (A18/B18),
LVDS_TX_1_DATA4_P/N (A19/B19), LVDS_TX_1_CLK_PYN (A17/B17).
' YES
| Check the panel module. |
LVDS_TX_0_DATAQ_P/N (C14/D14), LVDS_TX_0_DATA1_P/N (C15/D15), _»
Check 1C3302 and its peripheral circuits.
(IC3501/C3502, etc.)