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OG Xbox Forums => Hardware Forums => Xbox Audio/Video Technical => Topic started by: FrostyTheSnowman on October 08, 2006, 06:59:00 PM

Title: Problem With Belinea 101536 Lcd (15")
Post by: FrostyTheSnowman on October 08, 2006, 06:59:00 PM

What resistor did you use? If you built your cable using the 680k resistor, then try using a 470k resistor. It seems to work better for most monitors.

Title: Problem With Belinea 101536 Lcd (15")
Post by: flexbeat on October 12, 2006, 09:56:00 AM

Hmm, got my 470k resistors today, just soldered it in, but the problem is the same one....
I Just tried another monitor (LG 1510S), but with it the picture is totally flackering, but the picture itself is ok...
Do you have another ideas?
Best regards, flexbeat

Title: Problem With Belinea 101536 Lcd (15")
Post by: FrostyTheSnowman on October 12, 2006, 10:05:00 AM

Hmm, strange. I've used my cable with a 470k resistor for about 2 months now, and it works perfectly with about 5 monitors that I have tested it with.

I'm sure the problem has to do with your cable.

Your cable is using the LM1881N chip, correct?

Title: Problem With Belinea 101536 Lcd (15")
Post by: FrostyTheSnowman on October 12, 2006, 10:23:00 AM

QUOTE(flexbeat @ Oct 12 2006, 10:27 AM)

P.S what are the differences between the LM1881N/NOPB, LM1881N. and LM1881N..?

I'm not really sure to tell you the truth, but I assume they simply each have their own way of handling the signal. I'm pretty sure that the LM1881N is the only one that can extract a sync signal from a component connection though.

Title: Problem With Belinea 101536 Lcd (15")
Post by: flexbeat on October 26, 2006, 09:12:00 AM

Still having problems with the 15" TFTs. Today i bought a 340K Ohm resistor after reading the VGA guide from 360mods, but my monitor only said "Out of range" in VGA and HDTV mode....So i decided to use an 1M Ohm potentiometer, i recognized, that my tft shows me a picture with a resistor of 440K till 1000K in HDTV mode and from 540K till 600K in VGA mode.....but the picture itself is still totally flickering....What happends if i interchanged the H- and V-Sync signals on the LM1881?
Thx for replies,

sorry for my bad english,
flexbeat

Title: Problem With Belinea 101536 Lcd (15")
Post by: flexbeat on October 28, 2006, 06:00:00 AM

Based on a post, i also tried setting VGA-Pin 10 to ground and using 47Ohm Resistors for the LM1881 output- pins. But still no bettering....Now I'm dispairing with it. Plz any1 help me with it  

Title: Problem With Belinea 101536 Lcd (15")
Post by: FrostyTheSnowman on October 28, 2006, 03:31:00 PM

At this point, my instincts are telling me that this monitor simply won't work with the XBOX. The XBOX is fairly close to providing a completely native VGA signal, but unfortunately it's not perfect and some monitors don't like it. Hopefully someone with more knowledge on the VGA cable could better assist you. Wish I could help you further, but unfortunately i'm as lost as you are at the moment.