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Are signal fed from pins 1,2,3(Analog-R/G/B),and 13,14(H Sync/V Sync) of input terminal (SC401) to pins T1,V1,M1,AA1,Y1 of
IC801 (M2)?
Are signals from B16, A16, P22, P23, R22, R23, T22,
T23, U22, U23, V22, V23 of IC801 normal?
Check LCD_CONTROL PWB.
[FRONT-END SECTION]
Digital broadcasting cannot be received.
Are IF_OUT_P/N signal send from
pin (20) (19) of TU1101 respectively?
Check the TU1101.
19K24U P18-57.indd
55
TROUBLESHOOTING TABLE (Continued)
No video output from PC input (INPUT4)
Yes
Yes
Yes
Yes
Are signal fed to pins U25,U26 of
IC8101?
No
Check between TU1101 and
UNT1101.
Yes
Check peripheral circuits of IC801 and Q801,Q803,Q805.
No
Check IC801 and peripheral circuits.
Yes
Check UNT1101 and its peripheral
circuits.
No
55
LC-19SK24U/U-W
LC-19SB24U/U-W
LC-19SB14U
LC-19D44U
No
2007-8-15
15:30:54
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