My monitor is acting up. This is what is shown when I press the power button. It just shows a blue screen with no text. Does anyone recognize the problem
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Hello, I came here after finding some similar questions asked on other monitors and hope someone here can help me get an ancient Viewsonic VP230mp (23" 4:3 LCD) back to working condition.
First a little background, I have a background in computer and electrical engineering, and I'm smart enough to know I know nothing about LCD displays and how they work. For this topic I'm as green as they come.
When the display is turned on the viewsonic logo displays in the uppper left for 2 seconds then the screen goes black, the power LED is green (on) and when a computer is connected... -
Hi.
I have some problem with old CRT TV Samsung model: CW-29Z338T, 29" size TV.
The problem is that letters and other text are not clear, text or letters are shadowed on the right side.
I found 2 capacitors on CRT Picture Tube Board.
47uF/400V was leaking very bad, the second cap 10uF/250V was bad ESR reading so i replace this cap also.
Replacement these 2 capacitors did not help nothing.
I try to reduce brightness, contrast and sharpness. There is very small effect on this shadow.
To reduce G2 down have more effect... -
TF-FUSE Thin Film Surface Mount Fuses
FF Series (Very Fast Acting), 0603 Size
Features
● Very fast acting at 200% overload current levels
● Low DCR
● High inrush current withstanding capability
● Fiberglass enforced epoxy fuse body
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Applications
● Notebook computers and tablets
● Digital cameras
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● Toys
● Bluetooth earphones
● Portable electronic devices...10-07-2024, 05:50 AM -
Hi, Badcaps.
I am troubleshooting a monitor
Viewsonic VX2718-PC-mhd.
Panel model SG2701BSG2701-8
Symptoms is no image.
This panel has 2 panel board connected by a U-ribbon.
When I disconnected the ribbon, I get a perfect half screen image.
I took some test point voltage, when ribbon disconnected.
HVAA 8.38v
FVDD12 1.21v
FDD33 3.3v
VIN 11.79v
VAA 16.85v
VGHF 30.16v
VGL -8.02v
CK1_I ~ CK8_I 1.403v
CK1_L ~ CK8_L 8.26v
When I connect both panel board
HVAA, VGHF, and CKx_L... -
I'm good at starting projects but never really completing them. So I think I'll start another one. Back in April 2024, a book was published, for the first time, in English ("Passcode to the Third Floor Secretariat"). So I don't need to use OCR and online translation portals for that one. But another book, "Fully Controlled Areas", ISBN 978-89-90959-28-7, has not been translated to English and probably never will be. (And I have got the only copy I will ever have, trust me). Lots of crude, hand-drawn illustrations of people starving and getting executed in North Korea. The...