Hello to all,
I'm trying to repair a TV model "BLAUPUNKT" 32 / 122I-GB-5B-HBKU-EU with mainboard TP.MSD309.BP75.
Red standby is present.
By pressing the power button, the blue led lights up for several seconds (about 6 seconds) but no sign of TV life (no backlight and no video signal on the panel (verified with a flashlight)
The LED then returns to red and then returns to blue and so on (the flashing is not fast, but as mentioned, several seconds pass between red and blue)
I measured the voltage on the main output connectors on the inverter and I have between 24 and 24.7 volts. Are these voltages correct? Should the backlight turn on?
The capacitors are not swollen but anyway I will try to replace them as soon as I have the opportunity to buy them.
They are n.2 capacitors of 25v and 470uf + n.2 capacitors of 35v and 330uf + n.1 capacitor of 16v and 470uf.
If I change them do you advise me to respect the original values or to use higher values?
Did you happen to have similar behavior on this TV?
I add that, in the various attempts to switch on, the TV miraculously turned on only once last week (tested for about a minute the menus and the panel were ok), then after turning it off no more worked.
I hope for your kind help.
Thanks.
I'm trying to repair a TV model "BLAUPUNKT" 32 / 122I-GB-5B-HBKU-EU with mainboard TP.MSD309.BP75.
Red standby is present.
By pressing the power button, the blue led lights up for several seconds (about 6 seconds) but no sign of TV life (no backlight and no video signal on the panel (verified with a flashlight)
The LED then returns to red and then returns to blue and so on (the flashing is not fast, but as mentioned, several seconds pass between red and blue)
I measured the voltage on the main output connectors on the inverter and I have between 24 and 24.7 volts. Are these voltages correct? Should the backlight turn on?
The capacitors are not swollen but anyway I will try to replace them as soon as I have the opportunity to buy them.
They are n.2 capacitors of 25v and 470uf + n.2 capacitors of 35v and 330uf + n.1 capacitor of 16v and 470uf.
If I change them do you advise me to respect the original values or to use higher values?
Did you happen to have similar behavior on this TV?
I add that, in the various attempts to switch on, the TV miraculously turned on only once last week (tested for about a minute the menus and the panel were ok), then after turning it off no more worked.
I hope for your kind help.
Thanks.
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