My boss has asked me to look at this TV. There is no standby light and I can't find the standby voltage. I do measure 338v across the main cap.
I do find a fluctuating 11-13v on the VCC of the sc1s311 on the rear of the board which looking at the data sheet it suggests the turn on voltage is 13.8v.
Is this voltage being held low as there is a fault elsewhere (led, mainboard) or is it because there is a fault with the PSU ? I'd still expect to find a standby voltage though ?
I've tested the diodes, caps and MOSFETs and find nothing out of order.
Can someone give me a clue on where to check please ? Many thanks.
I do find a fluctuating 11-13v on the VCC of the sc1s311 on the rear of the board which looking at the data sheet it suggests the turn on voltage is 13.8v.
Is this voltage being held low as there is a fault elsewhere (led, mainboard) or is it because there is a fault with the PSU ? I'd still expect to find a standby voltage though ?
I've tested the diodes, caps and MOSFETs and find nothing out of order.
Can someone give me a clue on where to check please ? Many thanks.
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