Samsung DP14LS Service Manual page 23

6 Troubleshooting
6-1-5 Unsynchronized image
Check the connection of signal cable.
Are H/V sync input on IC201's
24
Pins 30 and 31?
25
Yes
Are H/V sync input on IC401's
26
Pins 1 and 2?
27
Yes
Refer to 6-2-12 High Voltage Failure.
Yes
Check and replace IC401.
6-1-6 Misconvergence
Readjust Misconvergence.
Spec in?
(Center : 0.3 mm, Cornor : 0.4 mm)
Yes
Done
6-4
No
Check H/V sync input line.
No
Check H/V sync input line.
24
26
No
Change CRT and readjust
Miconvergence and color.
No
No
WAVEFORMS
5.28 V (IC201, #31)
CH1 P-P = 5.28 V CH1 RMS = 1.218 V
5.48 V (IC401, #1)
CH1 P-P = 5.48 V CH1 RMS = 1.362 V
Refer to 6-2-17 Micom
Failure.
Check and replace IC201.
25 4.96 V (IC201, #30)
CH1 P-P = 4.96 V CH1 RMS = 350 mV
27 4.48 V (IC401, #2)
CH1 P-P = 4.48 V CH1 RMS = 284 mV
DP14L*/DP15L*