Samsung PN15VT / VO Service Manual page 25

5 Troubleshooting
5-1-15 Dynamic Focus Failure
T502 Pin 6 output is right?
12
Yes
13 T502 Pin 1 input is right?
Yes
Check the connection between FBT
Focus pin and CRT Socket PCB.
5-8
No
Replace the C432.
No
Check and replace T502.
WAVEFORMS
12 50.0 V (T502, #6)
CH1 P-P = 50.0 V CH1 RMS = 75.6 V
13 100 V (T502, #1)
CH1 P-P = 100V CH1 RMS = 124.0 V
PN15VT/VO
PN15HT/HO