Text preview for : DP14LT7N_ING.IN050.1.16.pdf part of Samsung DP14LS/LT DP15LS/LT Service Manual Samsung 450B / 550B
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11 Schematic Diagrams
11-1 Power Part Schematic Diagram
MULTI-MEDIA
11-1
DP14L*/DP15L*
11 Schematic Diagrams
1 410 V (IC601, #1) 2 8.40 V (IC601, #5)
CH1 = 410 V
CH1 RMS = 332.8 V
CH1 = 8.40 V
CH1 RMS = 4.680 V
DP14L*/DP15L*
11-2
11 Schematic Diagrams
11-2 Micom Part Schematic Diagram
11-3
DP14L*/DP15L*
11 Schematic Diagrams
14 5.92 V (IC201, #16, 17) 20 4.92 V (IC201, #14) 21 5.52 V (IC201, Keyin/out) 23 5.16 V (IC202, #3)
CH1 P-P = 5.92 V
CH1 RMS = 3.812 V
CH1 P-P = 4.92 V
CH1 RMS = 2.912 V
CH1 P-P = 5.52 V
CH1 RMS = 3.696 V
CH1 P-P = 5.16 V
CH1 RMS = 3.570 V
24 5.28 V (IC201, #31)
25 4.96 V (IC201, #30)
CH1 P-P = 5.28 V
CH1 RMS = 1.218 V
CH1 P-P = 4.96 V
CH1 RMS = 350 mV
DP14L*/DP15L*
11-4
11 Schematic Diagrams
11-3 HOR./VER. Part Schematic Diagram
TILT OPTION
11-5
DP14L*/DP15L*
11 Schematic Diagrams
3 5.12 V (IC401, #6) 4 4.60 V (IC401, #26) 8 1.12 V (IC401, #24) 9 3.16 V (IC401, #23)
CH1 P-P = 5.12 V
CH1 RMS = 4.256V
CH1 P-P = 4.60 V
CH1 RMS = 3.054 V
CH1 P-P = 1.12 V
CH1 RMS = 3.094 V
CH1 P-P = 3.16 V
CH1 RMS = 3.686 V
10 50.8 V (IC301, #9)
12 14.0 V (IC401, #28)
26 5.48 V (IC401, #1)
27 4.48 V (IC401, #2)
CH1 P-P = 50.8 V
CH1 RMS = 7.04 V
CH1 P-P = 14.0 V
CH1 RMS = 7.34 V
CH1 P-P = 5.48 V
CH1 RMS = 1.362 V
CH1 P-P = 4.48 V
CH1 RMS = 284 mV
28 2.76 V (IC401, #12)
29 736 mV (IC401, #16)
32 158 V (CN105, G1)
CH1 P-P = 2.76 V
CH1 RMS = 842 mV
CH1 P-P = 736 mV CH1 RMS = 233.6 mV
CH1 P-P = 158 V
CH1 RMS = 151.1 V
DP14L*/DP15L*
11-6
11 Schematic Diagrams
11-4 H_OUT Part Schematic Diagram
15" ONLY
11-7
DP14L*/DP15L*
11 Schematic Diagrams
5 28.4 V (Q501, Collector) 6 10.40 V (Q402, Base) 7 1.176 kV (Q402, Collector) 11 38.4 V (T501, #4)
CH1 P-P = 28.4 V
CH1 RMS = 15.55 V
CH1 P-P = 10.40 V CH1 RMS = 1.664 V
CH1 P-P = 1.176 kV CH1 RMS = 349.2 V
CH1 P-P = 38.4 V
CH1 RMS = 10.38 V
13 136 V (Q504, Drain)
30 5.8 V (Q412, Collector)
31 5.36 V (Q510, Collector)
CH1 P-P = 136 V
CH1 RMS = 78.3 V
CH1 P-P = 5.8 V
CH1 RMS = 20.84 V
CH1 P-P = 5.36 V
CH1 RMS = 4.210 V
DP14L*/DP15L*
11-8
11 Schematic Diagrams
11-5 Video Part Schematic Diagram
11-9
DP14L*/DP15L*
11 Schematic Diagrams
15 3.16 V (IC101, #21) 16 43.2 V (IC103, #3) 17 35.2 V (SK103, G1) 18 5.60 V (IC101, #12)
CH1 P-P = 3.16 V
CH1 RMS = 1.008 V
CH1 P-P = 43.2 V
CH1 RMS = 63.56 V
CH1 P-P = 35.2 V
CH1 RMS = 80.84 V
CH1 P-P = 5.60 V
CH1 RMS = 4.908 V
19 46.4 V (SK103, G)
22 1.016 V (CN202_2, #2,4,6)
CH1 P-P = 46.4 V
CH1 RMS = 38.16 V
CH1 P-P = 1.016 V CH1 RMS = 174.4 mV
DP14L*/DP15L*
11-10
11 Schematic Diagrams
Memo
11-11
DP14L*/DP15L*