Sharp LC32SB27U Service Manual - Page 52

LV0OUT2P/M P19/P20, LV0OUT3P/M R19/R20

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Page 52 highlights

LC-32D47U/LC-32SB27U/LC-C3237U No video (2) COMPONENT: No external input video [INPUT-1] COMPONENT: No external input video [INPUT-2] Is INPUT-1 selected on the input select menu screen? Is the INPUT-SELECT for the input signal? NO Select INPUT-1 on the input select menu screen for the right input signal. Is INPUT-2 selected on the input select menu screen? Is the INPUT-SELECT for the input signal? NO Select INPUT-2 on the input select menu screen for the right input signal. Does the INPUT-1 C1_PLUG detection function? Check the line between pin (2) of input terminal (J503) and pin (J2) of IC8001 (CPU). YES Are there the COMPONENT video signal inputs at pins (B13/B15) (Y)/(A10) (Pb) and (A7) (Pr) of IC8001 (CPU)? Does the INPUT-2 C2_PLUG detection function? Check the line between pin (2) of input terminal (J504) and pin (K2) of IC8001 (CPU). YES Are there the COMPONENT video signal inputs at pins (A13/A15) (Y)/ (B10) (Pb) and (B7) (Pr) of IC8001 (CPU)? NO Check the line between the input terminals of J503 and IC8001. 1 J503 pin (3) (Y) pin (5) (Pb) pin (7) (Pr) YES 2 IC8001 pin (B13/B15) pin (A10) pin (A7) 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 NO Check the line between the input terminals of J504 and IC8001. 1 J504 pin (3) (Y) pin (5) (Pb) pin (7) (Pr) 2 IC8001 pin (A13/A15) pin (A10) pin (A7) NO Check IC8001 and its peripheral circuits. (IC8251, etc.) YES Check the panel module. No video (3) S-VIDEO: No external input video [INPUT-2] Is INPUT-2 selected on the input select menu screen? NO Does the INPUT-2 S1_PLUG detection function? Check the line between pin (6) of input terminal (J506) and pin (AB11) of IC8001 (CPU). YES Are there the S-VIDEO signal inputs at pins (A12) (Y) and (B9) (C) of IC8001 (CPU)? NO Check the line between pins (3) (Y)/(4) (C) of J506 and pins (A12)/(B9) of IC8001. (Q507 and Q508, etc.) YES Are the LVDS signal outputs at the LVDS 1st channel and 2nd NO Check IC8001 and its peripheral circuits. (IC8251, etc.) 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. 6 - 2

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LC-32D47U/LC-32SB27U/LC-C3237U
6 – 2
No video (2)
COMPONENT: No external input video [INPUT-1]
COMPONENT: No external input video [INPUT-2]
Is INPUT-1 selected on the input select menu screen?
Is the INPUT-SELECT for the input signal?
Is INPUT-2 selected on the input select menu screen?
Is the INPUT-SELECT for the input signal?
YES
NO
YES
NO
Select INPUT-1 on the input select menu screen for
the right input signal.
Select INPUT-2 on the input select menu screen for the right
input signal.
Does the INPUT-1 C1_PLUG detection function?
Does the INPUT-2 C2_PLUG detection function?
Check the line between pin (2) of input terminal (J503)
and pin (J2) of IC8001 (CPU).
Check the line between pin (2) of input terminal (J504) and pin
(K2) of IC8001 (CPU).
Are there the COMPONENT video signal inputs at pins (B13/B15)
(Y)/(A10) (Pb) and (A7) (Pr) of IC8001 (CPU)?
Are there the COMPONENT video signal inputs at pins (A13/A15) (Y)/
(B10) (Pb) and (B7) (Pr) of IC8001 (CPU)?
YES
NO
YES
NO
Check the line between the input terminals of J503
and IC8001.
J503
pin (3) (Y)
pin (5) (Pb)
pin (7) (Pr)
IC8001
pin (B13/B15)
pin (A10)
pin (A7)
Check the line between the input terminals of J504 and IC8001.
J504
pin (3) (Y)
pin (5) (Pb)
pin (7) (Pr)
IC8001
pin (A13/A15)
pin (A10)
pin (A7)
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.
No video (3)
S-VIDEO: No external input video [INPUT-2]
Is INPUT-2 selected on the input select menu screen?
YES
NO
Does the INPUT-2 S1_PLUG detection function?
Check the line between pin (6) of input terminal (J506)
and pin (AB11) of IC8001 (CPU).
Are there the S-VIDEO signal inputs at pins (A12) (Y) and (B9)
(C) of IC8001 (CPU)?
YES
NO
Check the line between pins (3) (Y)/(4) (C) of J506
and pins (A12)/(B9) of IC8001. (Q507 and Q508, etc.)
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.
1
2
1
2