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| 1564 (UM3) No LVDS https://vlab.su/viewtopic.php?f=41&t=61676 |
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| R EZ A [ 24 май 2017, 11:54 ] | |
| Заголовок сообщения: | 1564 (UM3) No LVDS |
hello masters this laptop has D-sub display ,but no LVDS at first it turn on with D-sub whan i switch D-sub to LVDS on keyboard,it turn back to D-sub itself it looks that it not detect LCD +LCDVCC=0V ENVDD=0V LCDVCC_ TST_ EN=0V do you have any idea? tnx |
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| gserg [ 24 май 2017, 17:45 ] | |
| Заголовок сообщения: | Re: 1564 (UM3) No LVDS |
the system identifies the matrix after reading the EDID, the power is supplied to it first, if the system recognizes the connection, the next will be powered by T-CON , power to the backlight is always present. |
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| R EZ A [ 27 май 2017, 11:53 ] | |
| Заголовок сообщения: | Re: 1564 (UM3) No LVDS |
gserg писал(а): the system identifies the matrix after reading the EDID, the power is supplied to it first, if the system recognizes the connection, the next will be powered by T-CON , power to the backlight is always present. fortunately i have another 1564 for repair i connect this laptop lcd cable to other one board and it works so lcd cable and lcd panel is ok but why this board not detect lcd?! |
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| R EZ A [ 30 май 2017, 17:46 ] | |
| Заголовок сообщения: | Re: 1564 (UM3) No LVDS |
i reballed vga chip and no change still not detect lvds |
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| R EZ A [ 01 июл 2017, 20:43 ] | |
| Заголовок сообщения: | Re: 1564 (UM3) No LVDS [РЕШЕНО] |
it was lvds connector problem! |
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