Showing posts with label Monitor. Show all posts
Showing posts with label Monitor. Show all posts

Monitor LCD benQ


This time the scheme, which lcd monitors came to the workshop brand BenQ Q5 × 3 series with a flame monitor complaints minute ago live longer, live and die again switched so onwards. This lcd monitor in around 2003.
if there are search scheme. Our first view all components whether there is a visible broken Elko, apparently all fine components. then forwarded by checking all voltages. sometimes there was tension at times missing. then we take off all the expenses Apparently suply result is the same. stresses emerge and disappear, it means damage to the power supply. we check all components ranging from power supply resistors, Elko, diodes, ceramic capacitors and transistors. but our results did not find the faulty component. last I checked IC602 (pc123) apparently there is little leakage at component. we replace these components with the same series, then I check the voltage was already ok. then we balikin we'd all load pull. and switch scheme monitors.
downloading tv schemes
service menu tv

Advance monitor 15 new black

Advance monitor 15 new black indeed different from the previous series. Monitor this series using the heater voltage (tube lights) is always on even if the monitor off but still connected to PLN's power cable.

So you've Although powernya and monitor key punch die, keep the flame heater. It gives the tube to work on, like a lighted lamp kept Bolam certainly will be short lived. Eventually the tube will look dark even though the brightness and contras was 100%.

If you encounter problems like this then you should do is:
off the heater voltage of 6.3 volt power supply.
replace with 2 coil clockwise on Flyback, which one can be foot Ground and the other connects to the heater directly.
With built like this then the heater will automatically turn off if you press the power button offnya although PLN power cable still connected, so the age of the tube will be longer.

Monitor LG Flatron 775FT Service Screen

 Here's How To Monitor LG Flatron 775FT Service Screen Parts
Top Striped and Scrolling:

1. Unloading the monitor with the opening of four screws in
close the monitor casing.

2. Open Board Monitor foundation made of iron.

3. Monitor LG Flatron 775FT damage the Upper Screen
Striped and is caused by rngkain Scrolling
vertical impaired. Then I try to check
Combination vertical all turns out ok. I check
physical components, it turns out that there elco
swell (broken) at the output of 40 volts Flyback.
Apparently the voltage was 40 volts required by the
vertical series to open the screen vertically
perfectly apart from the power supply voltage 15
volts.

4. Then I replace the broken elco (this elco
as a filter voltage 40 volts). Then my monitor
switch was still the same. Then I try to sort
This 40-volt circuit there was a safety resistor
with the size of the burned 0.1 ohms. This resistor as
fuse. The breakdown was caused by elco resistor which
been damaged so that the voltage overload.

5. Then I replace the damaged resistor with
size of 0.1 ohms. And try to turn my monitor, and
Monitor returned to the normal flame

LG Flatron 775FT Monitor


The same Servisan come again. This time LG Flatron 775FT monitor but also damaging the Striped Upper Screen and Scrolling. Kira - my ass ya think .....?


Here's How To Monitor LG Flatron 775FT Service Upper Striped Display and Scrolling:

1. Unloading the monitor with the existing open 4 screws on the monitor casing cap.
2. Open Board Monitor foundation made of iron.
3. Monitor LG Flatron 775FT damage the Upper Screen Scrolling Striped and is caused by vertical rngkain disrupted. Then I tried to check all Combination vertical turns out ok. I check the physical components, there was a swell elco (broken) at the output of 40 volts Flyback. Apparently the voltage was 40 volts required by the vertical circuit to open the screen perfectly vertically apart from the power supply voltage of 15 volts.

4. Then I replace the broken elco (elco this as a filter voltage 40 volts). Then I turn on the monitor was still the same. Then I try to sort this series of 40 volts there was a safety resistor with 0.1 ohms measure the burning. This resistor as a fuse. This resistor rupture caused by a damaged elco earlier so that the voltage overload.

5. Then I replace the broken resistors with sizes 0.1 ohms. And try to turn my monitor, and monitor the flame back to normal
download schematic here

Advance Monitor 15 Black Screen Dark

Advance monitor 15 new black indeed different from the previous series. Monitor this series using the heater voltage (tube lights) is always on even if the monitor off but still connected to PLN's power cable.

So you've Although powernya and monitor key punch die, keep the flame heater. It gives the tube to work on, like a lighted lamp kept Bolam certainly will be short lived. Eventually the tube will look dark even though the brightness and contras was 100%.

If you encounter problems like this then you should do is:
off the heater voltage of 6.3 volt power supply.
replace with 2 coil clockwise on Flyback, which one can be foot Ground and the other connects to the heater directly.
With built like this then the heater will automatically turn off if you press the power button offnya although PLN power cable still connected, so the age of the tube will be longer.
download schematic here

sttt

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