Sharp LC-52D62U Service Manual page 43

Check the DDC line and its peripheral circuits
(IC1502 (EEPROM) and its peripherals).
Does the signal come from pins (34 and 35) (CLK±), (31 and 32) (D0±), (28 and 29)
(D1±), and (25 and 26) (D2±) of IC1507 to pins (50 and 51), (54 and 55), (58 and 59), and
(62 and 63) of IC1508?
Are there the U3VINY[7:0], U3VINR[7:0], U3VINPBPR[7:0], U3VDIN, U3HDIN, U3DEIN
and U3VINCLK signal outputs from IC1508?
Are there the U3VINY[7:0], U3VINR[7:0], U3VINPBPR[7:0], U3VDIN, U3HDIN, U3DEIN
and U3VINCLK signal inputs at IC3301 (VPC)?
Is there the LVDS signal output at the LVDS 1st channel and 2nd channel of IC3301?
TA2_P/M(AJ30/AK30), TB2_P/M(AJ29/AK29), TC2_P/M(AJ28/AK28), TD2_P/M(AJ26/
AK26), TE2_P/M(AJ25/AK25), TF2_P/M(AJ24/AK24), TCLK2_P/M(AJ27/AK27), TA1_P/
M(AB29/AB30), TB1_P/M(AC29/AC30), TC1_P/M(AD29/AD30), TD1_P/M(AF29/AF30),
TE1_P/M(AG29/AG30), TF1_P/M(AH29/AH30), TF1_P/M(AH29/AH30), TCLK1_P/
M(AE29/AE30)
Check the panel module.
YES
YES
YES
YES
6 – 8
LC-46D62U/LC-52D62U
Check the DDC line and its peripheral cir-
cuits (IC1501 (EEPROM) and its periph-
erals).
Check IC1507, IC1508 and their periph-
eral circuits.
NO
Check IC1508 and its peripheral circuits.
NO
Check the line between IC1508 and
IC3301.
NO
Check IC3301 and its peripheral control
circuits (IC3501, IC3502, IC8101, etc.).
NO