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Old 06-12-2020, 03:48 AM   #1
G33RT
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Default Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

Hi,

Do some of you know if it's possible to swap a laptop LCD with another model number ?

For example: Samsung LTN173KT02-801 with Samsung a LTN173HT02
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Old 06-12-2020, 10:07 AM   #2
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Default Re: Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

yes
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Old 06-15-2020, 05:52 AM   #3
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Default Re: Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

Damn it did not work.

The 40pin LVDS connector has not the same pin assignment than the orignale LCD screen.
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Old 06-17-2020, 12:05 PM   #4
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Default Re: Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

I found out that the recommended LCD's are not compatible with my X770 laptop !?

I did some reverse engineering and traced all from the JLVDS mainboard connector to the 40pin LVDS connector and this is how they are assigned:

LVDS 40pin Mainboard JLVDS connector
1 - NC
2 - GND
3 - TXCLK- 6
4 - TXCLK+ 4
5 - GND
6 - Lane2+ 17
7 - Lane2- 19
8 - GND
9 - Lane1- 15
10 - Lane1+ 13
11 - GND
12 - Lane0- 11
13 - Lane0+ 9
14 - GND
15 - LCD EN VDD 24
16 - LCD LED PWM 20
17 - GND
18 - 5.1v LCD VCC
19 - 5.1v LCD VCC
20 - 5.1v LCD VCC
21 - 5.1v LCD VCC
22 - GND
23 - GND
24 - GND
25 - GND
26 - GND
27 - 1.1v (+3v LVDSDDC) 28
28 - 19v GND
29 - 19v GND
30 - 19v GND
31 - 19v GND
32 - 0v (BKLT_Enable) 35
33 - 3.0v (BKLT_PWM_DIM) 26
34 - NC
35 - NC
36 - 19v LCD VCC
37 - 19v LCD VCC
38 - 19v LCD VCC
39 - 19v LCD VCC
40 - NC


How can I find out which LCD screen fits my laptop ?
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Old 06-17-2020, 03:41 PM   #5
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Default Re: Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

Firstly, the old and the new screen must be pin-compatible. Then, there are some other factors that have to be considered such as screen size and location of connector. For more info, read this page:
https://www.badcaps.net/forum/showthread.php?t=80477

If the new screen is not pin-compatible, do not connect it to the laptop.
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Old 06-17-2020, 04:20 PM   #6
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Default Re: Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

The LTN173HT02 is a 3D screen,there are some X770 models with one.The compatibility,the LVDS cable,header, motherboard revision or bios may be different though.
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Old 06-18-2020, 03:23 PM   #7
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Default Re: Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

So how can I find a correct LCD screen for this laptop ?
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Old 06-19-2020, 12:56 AM   #8
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Default Re: Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

you should compare datasheets of the new and the old screens.
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Old 06-21-2020, 09:47 AM   #9
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Default Re: Can I swap LCD screen LTN173KT02-801 with a LTN173HT02 ?

Theres one listed on aliexpress as LTN173HT02-C01 X01 for Toshiba Qosmio X770 X870 X775 .What part number is yours it seems theres 5 different ones - C01,D02,T01,T02,X01
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