Question about Dell UltraSharp 1704FPT 17" Flat Panel LCD Monitor

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NEED SCHEMATIC DIAGRAM monitor DELL 1704FPTt --or diagram chassis ptb1511 please help power defect..

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  • pvaly07 Apr 07, 2011

    no , ,,,, integrated I801 EXPLODED , how name integrated? 8 pin .

    need power supply schematic diagram.......


    or name integrated I801 please help.. thnk...

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1 Answer

Bud Martin
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  • Bud Martin
    Bud Martin Apr 07, 2011

    The whole replacement board is only $30, when the MOSFET that is driven by this SMP IC, it will take out the IC by blowing it up due to shorted MOFET Gate to Drain (Gate is driven by the IC) and put 170vdc o the IC, so it blows up the IC real bad. You may also find that the Diode connected to the Gate is also bad, also check the Source resistor to see if it is open.
    I am still trying to see if I have broken board that I can look up the IC number for you.

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Try here:
http://elektrotanya.com/?q=showresult&megnev=ACER&megnev2=V193&kategoria=monitor&kat2=all

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
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Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
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Hit power button, powrers up for a few seconds, then goes off. Dell 1704FPTt Flat Panel.
Please see my pictures here and look for bad caps as shown in my pictures.
http://s807.photobucket.com/albums/yy352/budm/Dell%201704FPT/

If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed DELL monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

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You will need test lamp to verify if it is the inverter or the lamp assemblies.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
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NEED DIAGRAM
Monitors are disposable items and not normally repaired. Technology moves on and High Definition Flat screen monitors are the way to go. The only place you would get a schematic for it is from Dell themselves. Unlikely you will find spares for it. If it has no power, then it is a power supply unit problem. I suggest you get a new electrical mechanic :>)


http://www.dell.com/support/home/ca/en/cabsdt1/Drivers/DriversDetails?driverid=4291F

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UltraSharp 1704FPT 17" Flat Panel LCD Monitor

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