Sharp AQUOS LC-60C6400U Wartungshandbuch PDF herunterladen (Seite 67)

LC-52/60/70LE640U,C6400U (1st Edition)

6 – 14

<HDMI input> No video (5)-4

HDMI: No external input video [INPUT-4]

Is INPUT-4 selected on the input select menu screen? NO Select INPUT-4 on the input select menu screen for

the right input signal.

YES

Does the HOT PLUG detection function?

Check the line between the input terminals of SC1505

and IC1504.

Does the DDC5V signal come from pin (18) of SC1505 to pin (51) of IC1504

(HDMI_SW)?

Check IC1504 and its peripheral circuits

(pin70 of IC1504/SCL1: pin71 of IC1504, etc.).

YES

Does the HPD signal come from pin (50) of IC1504 to pin (19) of SC1505? NO Check the line between the pin (50) of IC1504 and the

pin (19) of SC1505.

YES

Check IC1504 and its peripheral circuits

pin70 of IC1504/SCL1: pin71 of IC1504, etc.).

Are there the TMDS signal inputs at pins (99/100) (CLK-/+), (1/2) (D0-/+), (3/4)

(D1-/+), (5/6) (D2-/+), all of IC1504?

Is IC1504 (pin48/pin49) accessed by I2C, with HDMI

connected, to read the DDC_I2C SDA/SCL data?

YES

Check the DDC line and its peripheral circuits.

(IC1504 and its peripherals)

Are there the all of TMDS inputs at pins (AM9/AL9) (CLK-/+), (AM10/AL10) (D0-/

+), (AM11/AL11) (D1-/+), (AM12/AL12) (D2-/+) of IC3303 (CPU)?

NO Check the line between IC1504 and IC3303, and their

peripheral circuits.

YES

Is the T-CON PWB connected?

VBO_HTPDN (40pin), VBO_LOCKN (39pin) of P2604 become Low if there is no

problem in the connection.

NO Check the panel module and harness.

YES

Are the V-By-One signal input to the pin of P2604?

VBO_CN_TXA+/- (36/37pin), VBO_CN_TXB+/- (32/33pin),

VBO_CN_TXC+/- (28/29pin), VBO_CN_TXD+/- (24/25pin).

NO Check IC3303 and its peripheral circuits.

(IC3501/IC3502/IC3503, etc.)

YES

Check the panel module and harness.

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