- g´day! I have a samsung 22" tv monitor to fix. power supply model bn44-00505A. some stuff blown up on the primary, according to research something typical on this model. secondary seems ok. writings on the board say in outputs a5v (standby), b5v (switched) both on the lower 3 diodes on the picture, vamp and b13v (12.8v, both are the linked at the connector that goes to the main board) my question is, are both the upper diodes for 13v? I believe so but wanted to make sure before injecting voltage there to test. I injected 5v on the lower side and standby circuit is working fine
- if I understand it correctly both 13v volt rails are just separated because one goes directly to the backlight coil and the other goes whatever (I assume the mainboard for tuner and stuff)?
- if both upper diodes are for 13v rails I will just modify some power supply I already have instead of spending money and time waiting for the components since the device is not worth much to begin with
- PS: by typical for this model I mean the ceramic cap (cm804), the controller, the bridge and the fuse
- Thanks in advance
-
This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...09-07-2024, 05:50 AM
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Hi everyone, first post here – long-time reader though. I have a dead MacBook Air M1 (2020) that won't charge or power on.
Device info:
MacBook Air (M1, 2020)
Model j313ap (A2337, logic board 820-02016)
Symptom:
No charging, no power on at all.
Restore attempts:
Apple Configurator finds the MacBook in DFU mode, as Linux with lsusb: Bus 001 Device 021: ID 05ac:1227 Apple, Inc. Mobile Device (DFU Mode).
It looks like the MacBookAir is in firmware boot loop. I have tried to restore 14.x version and 26.2 (latest) version firmware,... -
Hello Friends, I need your help.
I have DEAD Samsung TV, NO Power , NO Led (tottaly dead)
I searched for the schematics of the Power Supply Board BN44-011000C but did not find it.
Does anyone have the schematics of the Power Board ?
Thanks in advance. -
Hi. I need help from wiser guys. I am amateur in electronics and can't figure this out by myself.
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After replacing the caps I started testing out the speaker. It seemed...09-10-2025, 10:20 AM -
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