Anyone have experience or help troubleshooting this 6 years old -Freecycled- 17" Sony SDM-HS74 LCD ?
At first, when powered on, the symptons were: green power led on, raster with osd but only for 5 sec. or so, then shut off and led turns amber.
Now, as you can see here, when powered on, this info
is displayed and the green power led stays on continuous.
The board is LG 6871TPT285A model PWI7LS285A rev.A
The caps are: Rubycon long life high ripple YXG
c202 470uF 25V
c203 470uF 25V
c205 1000uF 16V
c315 470uF 25V
c333 470uF 25V
sorry, don't have a esr meter
I found this http://sci.tech-archive.net/Archive/.../msg00036.html and I've the service manual.
tested power/inverter board conector pins with a dt9205b multimeter:
13.78V at +13V
4.95V at +5V
could it be the microcontroller board ?
At first, when powered on, the symptons were: green power led on, raster with osd but only for 5 sec. or so, then shut off and led turns amber.
Now, as you can see here, when powered on, this info
is displayed and the green power led stays on continuous.
The board is LG 6871TPT285A model PWI7LS285A rev.A
The caps are: Rubycon long life high ripple YXG
c202 470uF 25V
c203 470uF 25V
c205 1000uF 16V
c315 470uF 25V
c333 470uF 25V
sorry, don't have a esr meter
I found this http://sci.tech-archive.net/Archive/.../msg00036.html and I've the service manual.
tested power/inverter board conector pins with a dt9205b multimeter:
13.78V at +13V
4.95V at +5V
could it be the microcontroller board ?
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