Sharp 52LE920UN, 60LE920UN service manual Key writing Edid writing Main PWB QPWBXF452WJZZ, Pwb

LC-52LE920UN/LC-60LE920UN

Adjustment	Adjustment conditions				Adjustment			procedure
point
	[Adjustment		standard	value]
	Measuring instrument: [Minolta CA-210] Technical measuring instrument
			Level	Reference		value		Adjustment spec	Inspection spec
	Point	6	916	X=0.272				±0.0010	±0.0020
				y=0.277
	Point	5	692	X=0.272				±0.0010	±0.0020
				y=0.277
	Point	4	532	X=0.272				±0.0015	±0.0030
				y=0.277
	Point	3	464	X=0.272				±0.0020	±0.0040
				y=0.277
	Point	2	296	X=0.272				±0.0030	±0.0060
				y=0.277
	Point	1	180	X=0.272				±0.004	±0.0080
				y=0.277
	Remarks			Setting	conditions		for	inspection
				AV MODE: [DYNAMIC] (Reset)
				Monochro:		ON
				OPC: OFF
				Active	Contrast:		OFF
				Power	Saving: OFF
				Aging Time: Min. 60 minutes

10. Key writing

10.1. EDID writing (Main PWB: QPWBXF452WJZZ)

Adjustment point	Adjustment	conditions
HDMI EDID writing	Process mode
(Main PWB)	Model discrimination	check

Analog	RGB EDID writing	Inspection	mode
(Main	PWB)	File version	check

Adjustment procedure

1)Enter the process mode.

2)Point the cursor to [HDMI EDID WRITE] and press the [ENT] key.

The writing is complete when [OK] is displayed. (If not written, HDMI does not function.)

CAUTION: Perform the data writing after setting the model discrimi- nation. The data based on the model discrimination information is recorded in EEPROM.

1)Write the EDID data for analog RGB into IC509 mounted on the main PWB using the checker.

TL511 *** 12C clock, TL508 *** 12C data TL544 *** 5V, TL507 *** GND

TL585 °°° Write protection (H: WP, L: write enable)

2)Perform the data writing before making inspection using the checker.

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