Sharp LC32SB27U Service Manual - Page 51

Sharp LC32SB27U - LC - 32" LCD TV Manual

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LC-32D47U/LC-32SB27U/LC-C3237U LCC3H2DA47PU TER 6. TROUBLESHOOTING TABLEService Manual [1] TROUBLESHOOTING TABLE No video (1) COMPOSITE: No external input video [INPUT-3] Is INPUT-3 selected on the input select menu screen? NO Select INPUT-3 on the input select menu screen for the right input signal. NO YES Does the INPUT-3 V3_PLUG detection function? Check the line between pin (7) of input terminal (J501) and pin (M1) of IC8001 (CPU). Is there the COMPOSITE signal input at pin (A11) of IC8001 (CPU)? NO Check the line between pin (6) of J501 and pin (A11) of IC8001. YES Are the LVDS signal outputs at the LVDS 1st channel and 2nd channel of IC8001? LV0OUT0P/M (N19/N20), LV0OUT1P/M (N21/N22), LV0OUT2P/M (P19/P20), LV0OUT3P/M (R19/R20), LV0CK0P/M (P21/P22) YES Check the panel module. NO Check IC8001 and its peripheral circuits. (IC8251, etc.) 6 - 1

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LC-32D47U/LC-32SB27U/LC-C3237U
6 – 1
LC32D47U
Service Manual
CHAPTER 6.
TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
No video (1)
COMPOSITE: No external input video [INPUT-3]
Is INPUT-3 selected on the input select menu screen?
YES
NO
Select INPUT-3 on the input select menu screen for
the right input signal.
NO
Does the INPUT-3 V3_PLUG detection function?
Check the line between pin (7) of input terminal (J501)
and pin (M1) of IC8001 (CPU).
Is there the COMPOSITE signal input at pin (A11) of IC8001
(CPU)?
YES
NO
Check the line between pin (6) of J501 and pin (A11)
of IC8001.
Are the LVDS signal outputs at the LVDS 1st channel and 2nd
channel of IC8001?
LV0OUT0P/M (N19/N20), LV0OUT1P/M (N21/N22),
LV0OUT2P/M (P19/P20), LV0OUT3P/M (R19/R20),
LV0CK0P/M (P21/P22)
NO
Check IC8001 and its peripheral circuits. (IC8251, etc.)
YES
Check the panel module.