55LH5000 (CHASSIS:LD91B) - LG TV Service Manual (repair manual). Page 6

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NOTE : Specifications and others are subject to change without notice for improvement.

This specification is applied to the LCD TV used LD91B
chassis.

Each part is tested as below without special appointment.

1) Temperature :  25±5ºC (77±9ºF), CST : 40±5ºC
2) Relative Humidity :  65±10%
3) Power Voltage : Standard input voltage (100-240V@50/60Hz)

* Standard Voltage of each products is marked by models.

4) Specification and performance of each parts are followed

each drawing and specification by part number in
accordance with BOM.

5) The receiver must be operated for about 5 minutes prior to

the adjustment.

1) Performance: LGE TV test method followed 
2) Demanded other specification 

- Safety: CE, IEC/EN60065
- EMC:CE, IEC 

- Module optical specification

1) Standard Test Condition (The unit has been ‘ON’)
2) Stable for approximately 30 minutes in a dark environment at 25±2°C
3) The values specified are at approximate distance 50Cm from the LCD surface
4) Ta=25±2°C, VLCD=12.0V, fV=60Hz, Dclk=74.25MHz VBR_A=1.65V,ExtVBR_B=100%

No. Item Specification 

Min.

Typ.

Max.

Remark

1.

Viewing Angle<CR>10> 

Right/Left/Up/Down 

178

Degree

2.

Luminance Luminance 

(cd/m

2

)

400 500

Variation -

1.3 

MAX 

/MIN

3.

Contrast Ratio 

CR 

1000 

1400

4.

CIE Color Coordinates   

White 

WX

0.279 

WY 0.292

Typ 

RED Xr

0.637

±0.03

Yr

0.333

Green Xg

0.287

Yg

0.605

Blue Xb 

0.145

Yb  

0.064