Replacing a Quanta LCD from HP 1502 with a HannaStar lcd

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • fongfah
    New Member
    • Aug 2008
    • 5
    #1

    Replacing a Quanta LCD from HP 1502 with a HannaStar lcd

    Hi, thks for this very informative site & learn lots of tips.

    My problem is that I have three HP1502 LCD Monitor Model no PE1234, Product no P9617D, May 2004, 15 inch LCD panel Quanta QD15x202, which had a red backlight for a few seconds then the backlight switch off but the Video is still working.

    First I tried to replace all the 7 capacitors, having read about HP1502 thread, although they look fine but the issue still persist so I tried to lid another 15 inch LCD panel HannaStar HSD1509MX17 that I had from a Viewsonic VA5036 Model no VS11248 & the backlight is OK but could not connect the video part. So I presume that the power system switch off when one of the two lamps is bad.

    I managed to replace the bottom lamp for two LCD monitor & is now working fine. However, the last one, the top lamp is bad & this is very difficult to replace.

    My question is, can I use the HannaStar instead of the Quanta LCD panel on the HP1502 video system. They are exactly the same size but their connectors are different Hanna LCD has a 14 cables from the Viewsonic video board (715G1558-1-VS) whereas Quanta has 17 cables coming out from the HP1502 video board (6832144400-02 PTB-1444 10/08/'03).

    Is there any website that explains the panel connectors for different make.
    Tags: None
    • kikkoman
      Badcaps Veteran
      • Jul 2007
      • 691
      #2
      Re: Replacing a Quanta LCD from HP 1502 with a HannaStar lcd

      generally, there are no rules for panel connectors. there are a handful of different types, and usually a single manufacturer uses different ones, too.

      i haven't seen a site yet that has a good comparison of them all, but there's pchub (http://www.pchub.com/uph/category/50...onverter.html), they have various converters.

      luckily you have both panels, so you can compare the connectors without much fuss (or looking for datasheets). look at the pictures of the adapters and connectors of your panels, there's a good chance there's one that fits.
      (comparing ground traces and planes is probably the best way to tell).

      finding datasheets for lcd panels is a huge pain in the ass. you'll have to compare similar models.
      good link: http://www.beyondinfinite.com/library.html

      technically i don't see why this conversion shouldn't work (99% sure the're both 1 channel lvds panels.)

      edit: red backlight sounds a lot like a bad ccfl tube.. are you sure replacing that one is impossible?
      "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats." - H.L. Mencken

        Comment

        • fongfah
          New Member
          • Aug 2008
          • 5
          #3
          Re: Replacing a Quanta LCD from HP 1502 with a HannaStar lcd

          Thks for the quick reply.

          Will check out the recommended sites as it seems to cover a wide range of lcd panels.

          What is a 1 channel lvds panels??

          After carefully looking at the panel circuit board, it seem that I can replace the top ccfl by lifting the panel circuitry.

          Thks again.
          Last edited by fongfah; 12-16-2008, 02:23 PM.

            Comment

            Previous template Next

            Related Topics

            Collapse
            • eccerr0r
              Sell or Shim Solar panels?
              by eccerr0r
              Well, due to my grid tie inverter not accepting high voltages, and the fact that the lions in my solar panels are 36V (72-cell) I think I need to stick with 72-cell.

              However I have a few smaller panels that are 36, 32, and two 30-cell. The 36 and 32 together run at 75% efficiency (and subtract more with additional inefficiencies) when running in parallel with the 72-cell panels. The kicker is that the two 30s... generate 0% power when connected in parallel(!)

              So now what to do with these small panels?

              I could sell them...

              Or I could shim them....
              03-29-2025, 01:07 AM
            • lpraderi
              Need help with HP15-fxxxxx Quanta U99/U92 LVDS <> eDP conversion.
              by lpraderi
              Hello , for some time I was studying Quanta U9x/8x schematics and the option to use both type of screen (LVDS 40 pin / eDP 30 pin).
              In some cases to use LVDS screen PCB use converter IC RTD2132/6
              Now I found an HP 15 F series U99 mainboard with RTD chip not populated and LVDS 40 pin lcd touch screen
              at the same time I have another HP 15 N series with Quanta U92 mainboard and RTD2136 with eDP 30 pin lcd screen (no touch).
              Maybe someone more experienced in the subject can clarify if is posible to change type of screen used with some resistors / bios options change.
              ...
              11-25-2023, 09:31 AM
            • Francisco.s
              Quanta N76 power-on issue.
              by Francisco.s
              Hello, I'm trying to repair an HP 27 Quanta N76 (DA0N76MB6E0 Rev E).

              I only get 3.3V, 5V, and 1.05V; no other voltages.

              I tried the BIOS and changed the KBC. The KBC self-programmed upon power-up after changing it.

              The VR-On is missing for NCP81220, but 1.2V is also missing for DDR4, so 1P2V_PWRGD is low. SUSON or DDR_VTT_EN are not present on the DDR4 voltage regulator (RT8231BGQW). It seems the KBC isn't triggering these signals.

              I'm using the Quanta N91 schematic, but there are too many changes that make it nearly impossible to measure signal...
              07-14-2025, 02:20 PM
            • Reintar
              Dell Inspiron 15 7567 (LA-D993P) - No power after replacing blown inductor and shorted mosfet advice needed
              by Reintar
              First of all, I'd like to mention that I'm a novice when it comes to laptop repair, although I do have some experience with soldering.
              One day, my laptop experienced a severe stutter, and after rebooting, it failed to boot into Windows. I decided to disassemble it and found that the PL900 component was blown. Later, I came across a post (https://www.badcaps.net/forum/troubl...error%E2%80%99) with the same problem, where...
              08-30-2024, 06:13 AM
            • supermattch
              Quanta DA0P5HMB8F1 rev. F
              by supermattch
              Hello,

              I need the schematic and boardview for the Quanta DA0P5HMB8F1 revision F. The laptop is a HP 15dy-2021nr. I keep finding similar boardviews but not this particular one. The components are in different places than those similar ones. Thank you.
              09-14-2025, 03:43 AM
            • Loading...
            • No more items.
            Working...