Question about Computers & Internet

Laptop LCD TFT Modules

Can you please point me to a web site, Normal 30 PIN LCD module and 20 PIN module datasheets please. Wish to convert 20 pin module to 30 module or working area. These are Laptop TFT or LCD Modules HSD150PX11-B Module = 20 Pin LQ150F1LH22 Module = 30 Pin They do have same characteristics.

Anonymous Sep 11, 2007

OK....DID NOT FIND ANY DATA SHEETS FOR THE SPECIFIED LCD MODULES, SO I MADE MY OWN. 20PIN LCD's AND 30 PIN LCD's can be switched around. If anyone wish to do this simply mail me and I'll be happy to forward the wiring diagram to them....free of [email protected]

Thanks. JJ

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457 Answers

Http://lcdrepair.net try them?

Posted on Sep 11, 2007

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My zoom g1x theres no sound.all power are working lcd light are on.but the sound cannot come out.can any one help me..

What letters / numbers that appears on the screen?
If the display is normal, and you can switch to other banks, and can edit each bank, then the problem of no sound, is at the pre-amp IC input, output amp, or CODEC converter.
This is the overall image of G1X inside. zoom-g1x-theres-no-sound-all-power-2ss5ycyvkoajtv035dpuezke-2-0.jpg

zoom-g1x-theres-no-sound-all-power-2ss5ycyvkoajtv035dpuezke-2-0.jpg

Next, we zoom-in the middle of picture above.
See the next picture.
IC2 (left) is input pre-amp IC (NJM2100).
IC4 (middle) is the CODEC IC (WM8734).
IC5 (right) is the IC output (NJU7082). zoom-g1x-theres-no-sound-all-power-2ss5ycyvkoajtv035dpuezke-2-1.jpg

zoom-g1x-theres-no-sound-all-power-2ss5ycyvkoajtv035dpuezke-2-1.jpg

Test whether the input IC is working normally, turn ON G1X, plug the guitar, go to BYPASS/TUNER menu. When the TUNER function could work, certainly input IC is not damaged.
Means only two possibilities, namely CODEC and output IC. That is not easily tested, except in specific ways.

May also, there are problems in the input / output socket.
Turn ON G1X. Try the following (see figure below):

Test the output socket. Touch pin output socket (right red arrow) with finger / screwdriver / whatever. If sound is heard in the amplifier, the output socket is normal.
Test the input socket, Same as above. (left red arrow). (if this happen in this point, problem is clear).

zoom-g1x-theres-no-sound-all-power-2ss5ycyvkoajtv035dpuezke-2-3.jpg

NOTES:
If lcd light are on (as you say), but appearing G1 or d5 or bt, and the system are hang / frozen, this is a different issue to the one described above,and dealt with in different ways too.

References IC datasheet:
NJM2100.
http://www.njr.com/semicon/PDF/NJM2100_E.pdf
NJU7082
http://www.datasheetarchive.com/dlmain/Datasheets-22/DSA-439015.pdf
WM8734 http://www.cirrus.com/en/pubs/proDatasheet/WM8734_v4.4.pdf
.

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Hi

Its very simple, All you need to get a low cost AC plug adaptor which can be found most of the DIY shops, Also you can easy cut the unfitting ground pin of the cord if you dont wish to buy the converter.
Converter looks like this

Please let me know if you need further assistance. Dont forget to rate the solution after resolve the issue.

Good Luck

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