case study- dell 3521 trun on but display not availeble-
1st chek all supply, but only 3/5 volt ganrate, core supply ram supply not ganrate.
now chang ram regulater ic , then problm solve..........
dell 3521 \ no display
Re: dell 3521 \ no display
good post
Re: dell 3521 \ no display
plz share pic as soon as possible
-
- Guru
- Posts: 235
- Joined: Tue Dec 20, 2016 7:46 pm
Re: dell 3521 \ no display
GOOD WORK
- skinnyblues
- Newbie
- Posts: 9
- Joined: Mon Jan 16, 2017 8:03 am
Re: dell 3521 \ no display
Nice threat
[ Post made via Android ]
[ Post made via Android ]

Re: dell 3521 \ no display
Pics?????
[ Post made via Android ]
[ Post made via Android ]

Re: dell 3521 \ no display
i am having a problem in the same model. my one is giving 7 beeps but no display. VCC_ Core is missing
Re: dell 3521 \ no display
reflash both bios chips and it should work, 7 beeps means no cpu, if the procesor has no power its a firmware issue since the pwm its drives by i2c bus and it means it doesnt receive the necesary dwords from kb9012, this could be cause and by the ec firmware from kb9012 but 90% of cases reflash those 2 chips to be sure and it should turn on
Re: dell 3521 \ no display
sir last few days before i faced same problom i reflow CPU and i got display work done sir ji
Who is online
Users browsing this forum: Bing [Bot]2 and 27 guests