Samsung UN55LS003AF, Руководство по обслуживанию

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4-1-4. SMPS Backlight
Backlight Test (CNM803 Removed)
CH1 192Vdc
P Item Volts P Item Volts
11 1F2 NC 12 1F1 NC
9 1- NC 10 2- NC
7 1- 96Vdc 8 2- 1Vdc
5 NC NC 6 NC NC
3 1+
192Vdc
4 2+ 190Vdc
1 1+ NC 2 2+ NC
<55" Panel Pin Map>
96Vdc
192Vdc
1Vdc
96Vdc
Backlight Test
„
Activate Backlight (Remove CN803). 1.
Check 192Vdc Supply Voltage at Pin 3 and at CH1 on SMPS. 2.
If Missing remove 3. CNL802 and test CH1 again. If still missing replace SMPS, If OK (high approx 280Vdc) replace
Panel .
Check pin map voltages. If 192Vdc is OK but other voltage(s) missing, replace 4. Panel .
4-4
4. Troubleshooting