2020-11-26

Philips 46PFL9706 - random stripes and blocks in image - defect TCON resonator X200

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This Philips has a unique backlight with more than 200 LEDs in a tight matrix. I generally like the high-end Philipses from the early 2010s....
7 comments:
2020-06-02

All I know about the Philips QFU mainboard problems

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I have had my share of experiments and frustration with the Philips QFU mainboards from the xxx7 (QFU 1.1, 2.1 for some 6xx7) and xxx8 (QFU ...
30 comments:
2019-04-29

How to check if an AS15 chip is working ok

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An AS15 is nothing but a 14 + 1 channel buffer. 15 reference voltages at the inputs are buffered for higher currents on the outputs. A resis...
2 comments:
2019-03-22

Onkyo TX-NR 5009 - defect main relay STD-S-109DMR2 - switching itself off - no sound - no image

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I have already fixed an 809 and a 515 recently. The 809 had the famous DSP problem and a reflow of the chip fixed it. The 515 had a defect m...
45 comments:
2019-03-14

More IR6500 tweaks - silencing fan - fixing flipped polarity of thermocouple socket - adjusting temperature offset - run bottom heater independently

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Silence the fan The fan is annoyingly loud. It is a line voltage fan, so you cannot just put some PC fan in there. The remedy is simple. ...
3 comments:
2019-02-23

Pimping the IR6500 with an Elstein RFS80 top heater

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I have tried to solder the CPU of Philips QFU TV boards twice and failed, because the temperature distribution of the top heater was so bad ...
2019-01-19

Building an EDS LeakSeeker 89!

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The EDS LeakSeeker is a unique device for finding shorts. Watch the videos on YouTube by EDS or check the description on the EDS website. Un...
11 comments: