sorry,been extremely busy with our dog kennels and getting stuff ready for winter...
Was hoping someone would jump in,will try and find some time tonight..
Proud owner of dozens of broken TV's and many,many,many boards.
Didn't forget about you.....super busy......Here's a gentle bump...selldoor,budm,tom66 anyone? I need some help with this one,too busy and it's getting close to being over my head
Proud owner of dozens of broken TV's and many,many,many boards.
Coming back to fixing this tv....power board checks out ok,fuse is ok..but yet it looks like I have no power to the tv since the standby light is off when plugged in...could it be the cord itself?
This is old and long post so let's start fresh.
Need voltages from connector that goes from power supply board to main board. Will need pin#- PIN DESCRIPTION -Pin voltage in standby-Pin voltage when pushing power button and picture of connector on power supply board.
Format:
Pin# - Pin Description - Pin Voltage standby - Pin voltage power on
1 - XXXXXXX - XXv - XXXv
2 - XXXXXXX - XXXv - XXXv
3 - XXXXXXX - XXXv - XXXv
4 - etc.
I assume no responsibility for any stupid suggestions I might post.
Working on the same board, observing similar symptoms, "all 5v" measures 4.4v when disconnected and 4.1v when connected to the main board.
P-ON-H2 is 0v
Not sure what P-ON H1 for and why there are two of them
Well I jumped the P-ON-H2 to AL +5v and the power board turned on just fine. +24v and some other voltages are present.
So it's the main board which is faulty then. It does not send the turn on signal to the PSU.
There are lots more caps connected in parallel to the PON-3.3V, some of them through the small inductors, not just what you have highlighted if look thorough the whole page, it is also fed to some other pages of the circuits too.
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