The blue back light comes on, it turns on/off and goes into stby OK but the menu does not display nor does vga input, it shows nothing but blue. the p/s voltages are 5.3vdc and 22vdc. I am looking at the sun scon caps. and do not have all that I need to replace them but they do not check bad, though not quite in specs. I verified the video cable continuity.
A HP monitor. as old as 2006... (o0ps)
read the manual yet? on "power saver modes" turn off them?
i bet you dont know spec, on caps. it's not published by HP ever.
most are +80% - 20% for filters. (ever seen that?)
so a 100uf can read 180uF, or 80uf and is IN SPEC.
but no caps stated, by you, lots there are...
my guess you are
looking for the caps used in china long ago that all failed, every one.
first off you never fully stated whats wrong, in DETAILS.
first have good running pc , with live VGA output (using VGA are you)>? unstated...
the MON, will now live sync, now , Horz and vert, on both pins
the OSD screen now works, if not the monitor is bad.?
or see No/syn, no sig, out of range or no input errors.
Monitor Going to Sleep
see page 34? in your manual yet?
and page 31, turn of power saver ?
if OSD is dead, say so first.
OSD can be locked. push mon menu button for 10sec, now unlocked
then go to OSD screen
http://h10032.www1.hp.com/ctg/Manual/c00834092
Power-Saver Feature
When the monitor is in normal operating mode, the Power li
ght is aqua-white or green (depending on model) and the
monitor uses the normal watts of power. For power us
age, refer to "Technical Specifications" (Appendix B).
The monitor also supports a power-saver mode that is
controlled by the computer. When the monitor is in the
reduced-power state, the monitor screen is
blank, the backlight is off, and the
Power light is amber. The monitor uses
minimum power. When the monitor is "awakened," a brief
warm-up period occurs before the monitor returns to
normal operating mode. The energy-saving reduced power stat
e activates if the monitor does not detect either the
horizontal sync signal or the vertical sync signal. The powe
r-saver feature must be activated on your computer for this
feature to work, << read that carefully?
turn this off ? first?
the early models of the monitor
had CCFL back lamps, and the 2 inverters are on the main power board. left side here
http://i.ebayimg.com/images/g/2-wAAOSwzSRZxoWH/s-l1600.jpg
SOURCE: my hp 42" PL4260N has sound but no picture. I
I had a similar problem with my 42 in Philips LCD HDTV. Here was the problem.
My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of
course) and found four bulged capacitors.
Many electronics companies were sold capacitors that failed in 2-5 years
instead of 10-20. The capacitors fail
prematurely due to a lack of preservatives. Unfortunately, they were installed in all
sorts of devices and cause a wide range of failure problems. Here are some options for you. 1. Have it fixed by a professional 2. Open your TV and find PSB. Check
for faulty caps. If you find some (bulged
or leaking) bad caps replace the entire board. 3. Remove and then replace individual faulty caps. This takes some soldering skill. Caps are inexpensive and if you can take care of it yourself
it will save you hundreds. I have a tip/tutorial
on this site that may also help. It
gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. It's
called: Fixing the Philips Turns/shuts off on its own problem. Hope this helps and Good luck.
Kaufman605
60 views
Usually answered in minutes!
×