Hello guys, hope somebudy here can help me or atleast with some advices. I have one Samsung T260 monitor which looks dead (no signs of life at all, no lights, blinks, no reaction to power btn) looks like I didn't pluged it into power line. I should mention that my knowledge in electronics is not deep enought but I have some basic understanding how electical circuits works. So I decided the problem is in Power Supply.
I have already checked some topics here about same monitor or related, but my problems sims to be a bit different. At first I have checked powersupply visualy: no signs of damaged capacitors (leakages, deformations,....) or other elements (no signs of High Temperature...), everything looks like totally new! (checked it 3 times with flashlight. Also measured some resistances and voltages as was recomended in other related topics, here the measurements:
Input: 220V
Output 14PIN:
P2=15,02V
P6=5,26V
P7=5,26V
P10=0V (Instead of 3,3V also no reaction on PWR BTN)
Main Fuse: 01,2 Ohm (Looks OK)
F301=01,3Ohm
R301=384KOhm
ZD101=725/1075
ZD102=676/1(Out of range)
D106=676/1(Out of range)
D102=629/1(Out of range)
D103=161/161 (????)
D107=830/1(Rising from ... up to 1 Out of range)
R103=01,6Ohm(Not sure it will be the same out of circuit)
C101=~227V
C102=~227V
C103=~227V
C104=0V
C105=313V
C106=1,83V
C109=11,34V
C117=108V
C118=3,98V
C119=5,26V
C112=15V
C108=15V
C113=5,26V
C116=5,26V
C114=0V
C316=15V
C317=15V
C301=0V
C302=0V
C304=0V
C306=0V
C303=0V
C305=0V
Also T301 looks fine 1048/1060
Any ideas? Tell me if you need me to make some aditional tests. Many thanks for your attention!
I have already checked some topics here about same monitor or related, but my problems sims to be a bit different. At first I have checked powersupply visualy: no signs of damaged capacitors (leakages, deformations,....) or other elements (no signs of High Temperature...), everything looks like totally new! (checked it 3 times with flashlight. Also measured some resistances and voltages as was recomended in other related topics, here the measurements:
Input: 220V
Output 14PIN:
P2=15,02V
P6=5,26V
P7=5,26V
P10=0V (Instead of 3,3V also no reaction on PWR BTN)
Main Fuse: 01,2 Ohm (Looks OK)
F301=01,3Ohm
R301=384KOhm
ZD101=725/1075
ZD102=676/1(Out of range)
D106=676/1(Out of range)
D102=629/1(Out of range)
D103=161/161 (????)
D107=830/1(Rising from ... up to 1 Out of range)
R103=01,6Ohm(Not sure it will be the same out of circuit)
C101=~227V
C102=~227V
C103=~227V
C104=0V
C105=313V
C106=1,83V
C109=11,34V
C117=108V
C118=3,98V
C119=5,26V
C112=15V
C108=15V
C113=5,26V
C116=5,26V
C114=0V
C316=15V
C317=15V
C301=0V
C302=0V
C304=0V
C306=0V
C303=0V
C305=0V
Also T301 looks fine 1048/1060
Any ideas? Tell me if you need me to make some aditional tests. Many thanks for your attention!
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