Samsung LE37B551A6W - white screen

[marcinbjl]

Hi,

The problem with this TV is white screen.

Main board - bn41-01258a
Power supply- BN44-00262A
T-CON- T370hw02 VC 37T04-C0G

Voltages from PSU:
5.3v pin - 5,31v
13v pin - 12,3v

T-con voltages:
VGMA1 15.36
VGMA2 15.11
VGMA3
VGMA4 12.45
VGMA5
VGMA6 10.74
VGMA7
VGMA8 10.05
VGMA9
VGMA10 7.95
VGMA11 7.7
VGMA12 6.76
VGMA13 7
VGMA14
VGMA15 4.86
VGMA16 2.9
VGMA17 4.23
VGMA18
VGMA19
VGMA20
VGMA21 0.52
VGMA22 0.3

AVDD 15.96
VGL or VOFFE -6.07


Is it problem with Gamma chip or maybe too low voltages from PSU? What else can i check?

thank you for any help

[newtothis]

Re: Samsung LE37B551A6W - white screen

Gamma IC

[tom66]

Re: Samsung LE37B551A6W - white screen

Agreed

[marcinbjl]

Re: Samsung LE37B551A6W - white screen

ok thanks, i am waiting for a new chip and will try to replace it