EEVblog Electronics Community Forum
A Free & Open Forum For Electronics Enthusiasts & Professionals
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
This topic
This board
Entire forum
Google
Bing
Home
Help
Search
About us
Links
Login
Register
EEVblog Electronics Community Forum
»
Electronics
»
Repair
»
Samsung PN58C550 Not Turning on
« previous
next »
Print
Search
Pages: [
1
]
Go Down
Author
Topic: Samsung PN58C550 Not Turning on (Read 909 times)
0 Members and 1 Guest are viewing this topic.
Fisher77
Regular Contributor
Posts: 138
Country:
Samsung PN58C550 Not Turning on
«
on:
January 14, 2018, 11:46:14 pm »
Took a chance and bought this one for 20 bucks. TV would not turn on when I got it. I found the QP802 MOSFET blown and both the F801S, and the F802s blown. The FET is a 20N60C3 I replaced it and both fuses, turned on the TV, ran for about 5 minutes, and it blew the FET and fuses again. I have checked the components around the FET. All seem to be ok. I then checked the ICX801 which is a 3BR1065JF and the components around it. No pins are shorted on it. Found no problems with any of the components around it. One problem I do have is the capacitor CX898 flew the coop. Never fails when I mess with these small SMD's.
I was hoping someone might be able to tell me what cap might should be there, and get some help diagnosing the problem with this power supply.
Any help is greatly appreciated.
Pictures:
THe top and bottom view of the whole board are from ShopJimmy. I could not get good clear pictures with my camera.
The last picture shows the missing cap location in a red box.
https://ibb.co/iXHSXR
https://ibb.co/kTyjCR
https://ibb.co/i03Cz6
https://ibb.co/hdekK6
https://ibb.co/mVKwRm
https://ibb.co/d7cEe6
Datasheets below are PDF File Downloads
3BR1065JF Datasheet:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwiV5K25y9jYAhXhRN8KHb0fDJoQFggrMAA&url=https%3A%2F%2Fwww.infineon.com%2Fdgdl%2FInfineon-ICE3BR1065JF-DS-v02_01-en.pdf%3FfileId%3Ddb3a30431ce5fb52011cf41346a204ef&usg=AOvVaw27s5R1GH6ar_ONdFMUxwZ0
20N60C3 Datasheet:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjxvpSMzdjYAhWLx4MKHal_BQEQFggoMAA&url=https%3A%2F%2Fwww.infineon.com%2Fdgdl%2FInfineon-SPP_I_A20N60C3-DS-v03_01-en.pdf%3FfileId%3Ddb3a304318f3fe290119090054e32a20&usg=AOvVaw3DmR6X4IjXVbSJBkMJIrVh
Logged
Fisher77
Regular Contributor
Posts: 138
Country:
Re: Samsung PN58C550 Not Turning on
«
Reply #1 on:
January 17, 2018, 08:36:16 pm »
Bump
Logged
Print
Search
Pages: [
1
]
Go Up
« previous
next »
Share me
Smf
EEVblog Electronics Community Forum
»
Electronics
»
Repair
»
Samsung PN58C550 Not Turning on
There was an error while thanking
Thanking...
EEVblog Main Site
EEVblog on Youtube
EEVblog on Twitter
EEVblog on Facebook
EEVblog on Odysee