Samsung LN32A330 Gamma Voltage check.

[OneAn9ryN00b]

Gma
1. 13.18
2. 10.38
3. 9.61
4. 9.00
5. 8.55
6.7.47
7. 7.05
8. 6.64
9. 6.19
10. 5.05
11. 4.55
12. 3.97
13. 4.55
14. 0.00

VDD. 3.35
VGH. 19.90
VDA. 13.79
VGL. -5.77
VCM. 12.12


I tested all the points marked in the image.
I tried using the spreadsheet but since i have less then 15 points. All i get is a "VALUE" error.
Symptoms are that it looks like it is a gamma chip, but just want a second opinion. White faint screen, with sound is what the symptoms are.

Thanks in advanced.

[mmartell]

Re: Samsung LN32A330 Gamma Voltage check.

Entry 13 is erroneous for sure and not sure that 14 should be 0v.

[OneAn9ryN00b]

Re: Samsung LN32A330 Gamma Voltage check.

Just checked those ones again, and still 0 for 14, and 13 was at 4.99 and slowly creeping up to 5.07 in about the one minute that I had it on.

[budm]

Re: Samsung LN32A330 Gamma Voltage check.

Time for new Gamma IC or a used T-CON (which more likely will fail again if the IC was not already replaced).