Samsung rv 420 VR_ON

[samanthban]

I got this laptop few days back and when press power button its goes to 0.21AMP .

Bios flashed and isl 95831 replaced no success

following voltages are present,

without pressing power button.

1. 0.11v
2. 0v
3. 0v
4.0v
5.0v
6.0v
7.0v
8.0v
9.0v
10.0v
11.0v
12.0.12v
13.0.11v
14.0v
15. 0.11v
16.0v
17,0v
18.0v
19.0v
20.0v
21.0v
22.0v
23.19v
24.0v
25.0v
26.0v
27.0v
28.0v
29.0v
30.0v
31.0v
32.0v
33.0v
34.0v
35.0v
36.0v
37.0v
38.0v
39.0v
40.0.11v
41.0v
42.0v
43.0v
44.0v
45.0v
46.0v
47.0v
48.0.11v

After pressing power button.

1. 0v
2. 0v
3. 0v
4.0.94v
5.1.04v
6.0.83v
7.3.3v
8.0v
9.0v
10.0v
11.0v
12.0.12v
13.0.11v
14.0v
15.0.83v
16.0v
17,0v
18.0v
19.0v
20.0v
21.0v
22.5v
23.19v
24.0v
25.5v
26.0v
27.0v
28.0v
29.0v
30.5v
31.5v
32.5v
33.0v
34.0v
35.0v
36.5v
37.0v
38.0v
39.0v
40. 5v
41.0v
42.0v
43.0v
44.0v
45.0v
46.0v
47.0v
48.0v

please some one help me to find a solution thanks..

[samanthban]

SCHEMATIC RV420

[bluestone]

If your cpu is on-board then it might be a cpu fault, check for short around the cpu coils

[javed]

crazy

[samanthban]

If your cpu is on-board then it might be a cpu fault, check for short around the cpu coils

Thanks ..no coils shorted

[rajeshkumar45]

check vin and vcc voltage