Re: Samsung 245b Plus
Need for:
1* 2.2 uF 50v 105C
2* 10 uF 50v 105C
1* 22 uF 50v 105C
3* 47 uF 50v 105C
1* 82 uF 450v 105C
1* 470 uF 35v 105C
1* 1000 uF 10v 105C
2* 1000 uF 35v 105C
1* 2200 uF 10v 105C
If there's someone who's able to find me the 450 V cap, I'd be more than grateful. I think I can find the rest from Farnell.
Current 450 V cap is 25 mm high, lead spacing 10 mm.
tgu
New Member
Last Activity: 01-20-2012, 12:13 PM
Joined: 01-13-2012
Location: Finland
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Re: Samsung 245b Plus
Not much change..
Applies to all 3 units:
1-2 starting from 12-15M and rising along time
1-4 3.6-3.9M
2-3 ~0
3-4 starting from 12-15M and rising along time
5-6 ~1.7k
7-8 ~1.7k
Using lower range on 1-2 and 3-4 results OL.Leave a comment:
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Re: Samsung 245b Plus
light connector side 1-2 3-4 (?) shows:
1-2 1.7k
2-3 1.7k
Maybe I'm getting it wrong..
other side
5-6 10-20M keeps changing whenever I read resistance
6-7 near 0
7-8 10-20M keeps changing whenever I read resistance
5-8 10-20M keeps changing whenever I read resistance
I don't have own power supply yet, but I could possibly do any needed measurements in school's equipment. That's 1 day delay each time.
I'll make better table of results tomorrow.Leave a comment:
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Re: Samsung 245b Plus
Blue led on 24.44V, led off -> Decreasing V
Repeating on off hits 24.44V, decrease, 24.44V, decrease ...
I made this table using diode check. MOSFET legs by datasheet goes G,S,D
OL when out of range. No shorts between legs.
Edit:
Inverter was only connected to PSU, not panel with 6 connectors....Last edited by tgu; 01-16-2012, 12:11 PM.Leave a comment:
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Re: Samsung 245b Plus
On PSU 5x24V and 5xgnd give 24.4V each, they seem to work. Inverter fuse on board gives a continuity beep. Searching instructions for testing them MOSFETs.Leave a comment:
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Re: Samsung 245b Plus
Got my tools back to home, and bought some rubber gloves just in case :P
Here's some pictures from underside.
I'll update results later tonight....Leave a comment:
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Re: Samsung 245b Plus
After it went all black during use, it has been completely black afterwards. Switching power led on/off and power switch under panel doesn't bring any light on the screen. Here's some pictures of the components.
Edit: Both fuses are fine. I'll be back tomorrow to continue....Last edited by tgu; 01-14-2012, 04:24 AM.Leave a comment:
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Re: Samsung 245b Plus
Friday 13th.. Luckily it wasn't any worse that this.
I have similar problem with Samsung SyncMaster 245B Plus too. Yesterday it started blinking black (0.5 sec about every 20 minutes) and today it gave up completely. Black screen with blue power on and with no menus. Tried to switch cables but no result. Soon I found this site and few 245B topics.
some specs:
Model: 245BPLUS
Model Code: LS24HUBCBL/EDC
Type: HU24BS
Power board (my bad english): BN44-00195A
Country: Finland (230V)
...Leave a comment:
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