• Toshiba Satellite S855 - włącza się bez 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.
  3. Before posting a new topic please read all topics in TRAININGS subforum and make a preliminary diagnostic based on the content of those trainings.
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  5. It is only permitted to describe one faulty device per single topic - you should always open a new topic for each subsequent device.
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#1 Toshiba Satellite S855 - włącza się bez obrazu


by JWKrzysiek 26 February 2024, 11:32
Witam
Proszę o pomoc w zidentyfikowaniu usterki
Płyta główna DK10FG-6050A2509901
procesor i7-3630qm
grafika AMD seria HD7600M (216-0833000)
kbc NPCE885LA0DX
BIOS 25Q64FVSIG
PCH Intel SLJ8E

po podłączeniu zasilacza serwisowego pobiera 0,006A po włączeniu 1,214A i rośnie jak się kliknie drugi raz przycisk zasilania wzrasta do 1,550 i też rośnie
Wgrywałem nowy bios i nic nie pomógł

rezystancje na cewkach wyglądają następująco:

L6200 - 478Ω
L6300 - 9,8Ω
L6500 - 8,8Ω
L6630 - 1,4Ω
L6620 - 1,4Ω
L6610 - 1,4Ω
L6000 - 3,06MΩ
L6100 - 14,54kΩ
L6150 - 17,97kΩ
L6750 - 9,6Ω
L6970 - 197,4Ω

napięcia podłączony zasilacz wyłączony laptop występują tylko na
L6000 - 3,097V
L6150 - 5,178V

po włączeniu

L6200 - 1,532V
L6300 - 1,085V
L6500 - 0,805V
L6630 - 0,928V
L6620- 0,924V
L6610- 0,924V
L6000- 3,102V
L6100- 3,387V
L6150- 5,127V
L6750- 0,928V
L6970- 1,852V

Re: Toshiba Satellite S855 - włącza się bez obrazu


by Google Adsense [BOT] 26 February 2024, 11:32

#3 Re: proszę o pomoc w diagnozie Satellite S855


by JWKrzysiek 26 February 2024, 13:06
I checked, it doesn't work

#5 Re: proszę o pomoc w diagnozie Satellite S855


by JWKrzysiek 26 February 2024, 16:32
U3150
Pin 1 - 0V
2 - 3,332V
3- 0V
4 - 0V
5 - 3,364V

#7 Re: proszę o pomoc w diagnozie Satellite S855


by JWKrzysiek 26 February 2024, 17:01
pin 118 - 3,348V

#9 Re: Toshiba Satellite S855 - włącza się bez obrazu


by JWKrzysiek 28 February 2024, 11:16
Measurments of the CN3000 connector

1 - 0V
3- 3,373V
4 - 3,161V and growing
5 - 3,164V and growing
20 - 0
21 - 0,004V
30 - 18,11

#11 Re: Toshiba Satellite S855 - włącza się bez obrazu


by JWKrzysiek 28 February 2024, 13:46
Image

#13 Re: Toshiba Satellite S855 - włącza się bez obrazu


by JWKrzysiek 28 February 2024, 15:01
Thank you for your help
I heated up the GPU and it started showing the image on the external monitor

Re: Toshiba Satellite S855 - włącza się bez obrazu


by Google Adsense [BOT] 28 February 2024, 15:01

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