G73SW component info

[jasko_jacker]

Hi all,
I need to convert g73sw motherboard from 3d to I think do this I have to add some components , (only resistor and capacitor) near 2d connector.
Unfortunally the boardview does not show component value.
I'm looking for a photo of the area around the lcd connector or datasheet or someone can help me with components value
thanks

[MOD EDIT] Link to boardview - https://www.badcaps.net/forum/showthread.php?t=126077

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[jasko_jacker]

Re: G73SW component info

After some changes, the 2D LCD goes on but without backlight. To enable
I need to find two resistor value, R4529 and R4530.

[meritosari]

Re: G73SW component info

if following schematic pegatron x750lb, only 0 ohm resistor, maybe try with 10k first for safety, if not work, downgrade it to 5k and so on till you get the backlight.

How many value R4733? Maybe only need moving R4733 to R4529???

My interpretation: pics

Is it possible that both ICs are controlling at the same point?
if Signal coming from ITE, R4530 unstuff.
if from MXM then R4529 unstuff

[jasko_jacker]

Re: G73SW component info

if following schematic pegatron x750lb, only 0 ohm resistor, maybe try with 10k first for safety, if not work, downgrade it to 5k and so on till you get the backlight.

How many value R4733? Maybe only need moving R4733 to R4529???

My interpretation: pics

Probably 0 ohm according to g75vw boardview that use the same lcd and not use any resistor to make the same connection.
But R4733 is not in place, this is another via to connect LCD_VGA_PWM signal
my schema has an error
This is my doubt:
I don't know if the signal PWM came from MXM or ITE and if I put in place both R4530 and R4529 ?

[meritosari]

Re: G73SW component info

G53SX signal coming direct from MXM with 0 ohm, so maybe unstuff R4529. Only need put R4530.

G73vw, same logic with asus N73SV, so different I think.

[highpulse]

Re: G73SW component info

R4530 is a 0 ohm resistor

r4529 doesn't mention value on boardview , cheking sequence , it show you can add something near 10 ohm or even less

[jasko_jacker]

Re: G73SW component info

Finally this is the G73S LCD POWER CIRCUIT modified to use 2D 40 pin LCD instead a 50 Pin 3D LCD.

1 - LCD_PWM:
3D_LCD receive PWM through R4734 0_Ohm ADD R4529 0_Ohm.
This pwm signal comes from VGA_CARD, there is an option to get it from ITE placing R4733 and
removing R4734 ??

2 - +3VS_LCD:
Add L4501

3 - LCD_BL_EN:
LCD receive enable signal from R4736 and a res. partition R4735-R4737 but i I think is possible
to get this signal removing R4736 and add R2445

[Pak Sonny Komputer]

Re: G73SW component info

After some changes, the 2D LCD goes on but without backlight. To enable
I need to find two resistor value, R4529 and R4530.

sorry for my bad english, can you explain what you have done in detail, because I have tried and the result only displays red green blue white black repeatedly on the screen with the screen light off