Hello,
First thing, thanks for any help you can give. I have a Philips 52PFL5704D/F7 that clicks when the power cord is plugged in and has no other indication of power getting to the unit (no LEDs, etc.). The set is about 2 years old, has not led a hard life (only on 5 or 6 hours a day) and just did not power up one day. The manual ON/OFF switch does not do anything and the remote does not also. I downloaded what appears to be the relevant the service manual from the Elektrotanya.com site (It shows 52PFL3704d, but the boards in their pictures look identical to me…). Got the back off and I do not see anything out of order. All the caps look pristine, as do the chips. The SM says to check the 3.3V from the power supply at various points ending up at Pin 1 of the 1101 connector, which I did and it reads 3.4+ volts. Almost looks like the 3.3V is running unloaded. The SM says to replace the SSB if the 3.3V is there, the 3.3V is on the IR module, the ON/OFF switch is good and the set does not power up. As more info, I checked the various voltages at the power supply and they are all in the millivolt range except for the 12V supplies which are about .6 V. I have included pics of the boards including close-ups of the labeling of the boards and the set itself.
Any thoughts? Do you think it really is the SSB and what is the worst case $$ to replace that? (It has a BIG FPGA on there and there is no way in heck I could replace that!! Discrete parts, yes….)
Later,
Mel D.
First thing, thanks for any help you can give. I have a Philips 52PFL5704D/F7 that clicks when the power cord is plugged in and has no other indication of power getting to the unit (no LEDs, etc.). The set is about 2 years old, has not led a hard life (only on 5 or 6 hours a day) and just did not power up one day. The manual ON/OFF switch does not do anything and the remote does not also. I downloaded what appears to be the relevant the service manual from the Elektrotanya.com site (It shows 52PFL3704d, but the boards in their pictures look identical to me…). Got the back off and I do not see anything out of order. All the caps look pristine, as do the chips. The SM says to check the 3.3V from the power supply at various points ending up at Pin 1 of the 1101 connector, which I did and it reads 3.4+ volts. Almost looks like the 3.3V is running unloaded. The SM says to replace the SSB if the 3.3V is there, the 3.3V is on the IR module, the ON/OFF switch is good and the set does not power up. As more info, I checked the various voltages at the power supply and they are all in the millivolt range except for the 12V supplies which are about .6 V. I have included pics of the boards including close-ups of the labeling of the boards and the set itself.
Any thoughts? Do you think it really is the SSB and what is the worst case $$ to replace that? (It has a BIG FPGA on there and there is no way in heck I could replace that!! Discrete parts, yes….)
Later,
Mel D.
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