Samsung DP14LS Service Manual page 42

6-2-19 User Control Failure
When pressing keys,
does LED blink?
Yes
Refer to 6-2-18 Key Check.
6-2-20 Degaussing Failure
Check if degaussing coil is connected
with GT601, GT602.
When pressing cont and brit
key simultaneously, does the
voltage of IC201's Pin 4 vary from
0 V to 5 V for 2~3 seconds?
Yes
Check and replace D616, Q601,
R603, RL601.
Check and replace degaussing coil.
DP14L*/DP15L*
No
Check knob function and space
at front cover.
Refer to 6-2-18 Key Check.
No
Refer to 6-2-18 Key Check.
6 Troubleshooting
6-23