• Toshiba C660-1CC brak obrazu

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Toshiba C660-1CC brak obrazu

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
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#1 Toshiba C660-1CC brak obrazu

by zmp3 • 24 September 2016, 18:50
Witam, dostałem toshibe C660 z urwaną klapą. Kable od matrycy i wifi były poucinane, wstępnie dawała obraz na monitor. Po rozebraniu i oględzinach okazało się że spalony jest element Q17 i na matrycy jest biały obraz. Po wymianie Q17 z płyty dawcy matryca włącza się z czarnym tłem i podświetleniem ale dalej brak obrazu. Obraz na Monitorze jest. CPU i RAM podmieniany brak zmian.

platforma: LA-6842P rev. 1.0

Re: Toshiba C660-1CC brak obrazu

by Google Adsense [BOT] • 24 September 2016, 18:50

#2 Re: Toshiba C660-1CC brak obrazu

by sebastiank • 25 September 2016, 13:33
Sprawdź rezystancje linii sygnałowych (LCD_TX.....) względem masy - rezystancje powinny być podobne.
Jeśli laptop był uruchamiany z obciętą tasiemką - na co może wskazywać uszkodzenie Q17 to te linie mogły zostać zwarte do masy lub któregoś z napięć zasilających.

#3 Re: Toshiba C660-1CC brak obrazu

by zmp3 • 25 September 2016, 14:42
Rezystancja

LCD_TXOUT0+ - 702 Ohm
LCD_TXOUT0- - 704 Ohm
LCD_TXOUT1+ - 387 Ohm
LCD_TXOUT1- - 43 Ohm
LCD_TXOUT2+ - 0 Ohm
LCD_TXOUT2- - 2 Ohm

#4 Re: Toshiba C660-1CC brak obrazu

by sebastiank • 25 September 2016, 14:56
Na 90% masz ubity PCH.

Re: Toshiba C660-1CC brak obrazu

by Google Adsense [BOT] • 25 September 2016, 14:56
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
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