Hi there,
I've got a Technika LCD 32-270 (aka. M32/57G-GB-FTCU-UK), which is currently stuck in standby. When the power supply is on, it simply lights the red standby LED, and shows no sign of life when I press buttons on the side panel or remote control.
Directly before this happened, the TV picture was replaced by a bright green distorted mess and the sound by loud white noise - this lasted a few seconds before it turned itself off and went to standby. The same thing also happened a few months ago, after which I left it turned off for a number of weeks, and it miraculously started to work again until now!
I've opened it up and had a look at the capacitors - no obvious bulging, but there is some gunk on the positive leg of C7 on the PSU board (see pics). +5VSB measures about 4.9V constantly on my multimeter and +5V about 4.7V, +12V is very low (varying between approx. 0-4V) and +24V is dead. Should I expect all these voltages to be high, even in standby, or are they only turned on if the logic board asks for them? I guess I'm mostly trying to work out if it's the PSU or logic board at fault here.
Any recommendations for my next move?
Thanks in advance!
Dan
I've got a Technika LCD 32-270 (aka. M32/57G-GB-FTCU-UK), which is currently stuck in standby. When the power supply is on, it simply lights the red standby LED, and shows no sign of life when I press buttons on the side panel or remote control.
Directly before this happened, the TV picture was replaced by a bright green distorted mess and the sound by loud white noise - this lasted a few seconds before it turned itself off and went to standby. The same thing also happened a few months ago, after which I left it turned off for a number of weeks, and it miraculously started to work again until now!
I've opened it up and had a look at the capacitors - no obvious bulging, but there is some gunk on the positive leg of C7 on the PSU board (see pics). +5VSB measures about 4.9V constantly on my multimeter and +5V about 4.7V, +12V is very low (varying between approx. 0-4V) and +24V is dead. Should I expect all these voltages to be high, even in standby, or are they only turned on if the logic board asks for them? I guess I'm mostly trying to work out if it's the PSU or logic board at fault here.
Any recommendations for my next move?
Thanks in advance!
Dan
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