Samsung DVD-L1200/XAA Specifications download pdf (Page 23)

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Alignment and Adjustments

Samsung Electronics 4-13

Alignment and Adjustments

3. IC (INTEGRATED CIRCUIT)

IC has built in DIODE against overvoltage in PIN. Generally, except for internal circuit defects, IC defects

can be found, by measuring the DIODE.

› Defects have SHORT(0 ohm) for both forward and reverse direction.

Hundreds of ohms

Forward Direction

Reverse Direction

Varying depending on IC but generally normal

Infinity in DIODE TEST MODE

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 141 142

PLASMA DISPLAY TV 1
ELECTRONICS 2
1. Precautions 3
Precautions 4
1-3 Servicing Precautions 5
2. Reference Information 7
3. Specifications 9
3-2 Samsung Electronics 10
4. Alignment and Adjustments 11
4-1-3 Details of Control 12
4-1-3(C) VPC3230 13
4-1-3(D) SDP9400 13
CB Offset1 14
Green Offset 15
Gain Drive 15
V Contrast 15
4-1-3(H) OPTION 16
Samsung Electronics 4-7 17
√ PC MODE 18
4-2 SPL4225 PC Input Mode 19
Alignment and Adjustments 20
4-14 Samsung Electronics 24
6. Troubleshooting 25
6-2 Partly no screen 26
6-3-1 Y buffer 27
6-3-2 Y Main 28
6-3-3 X Board 29
6-3-4 SMPS 30
6-3-5 Scaler Borad 31
Troubleshooting 32
7-1 SPL4225X/XAA 33
7-2 Samsung Electronics 34
8. Electrical Parts List 35
8-1 PARTS LIST FOR SERVICE 36
Samsung Electronics 8-3 37
8-4 Samsung Electronics 38
Samsung Electronics 8-5 39
8-6 Samsung Electronics 40
Samsung Electronics 8-7 41
8-8 Samsung Electronics 42
ASSY COVER FRONT 43
ASSY COVER REAR 44
ASSY P/MATERIA 44
ASSY BOX 44
ASSY LABEL 44
ASSY ACCESSORY 44
11. Wirng Diagram 45
Wiring Diagram 46
11-2 Samsung Electronics 46
12. Schematic Diagrams 47
12-2 3D- COMB FILTER 48
Samsung Electronics 49
12-4 Samsung Electronics 50
12-5 SCALER4 VIDEO DA CON 51
12-6 Samsung Electronics 52
12-7 SCALER7 ADC(PC) 53
12-8 Samsung Electronics 54
12-10 SOUND 56
POWER SWLINE-FILTER 57
SPEAKER TERMINAL 57
12-12 CONTROL, REMOCON 58
5. Circuit Description 59
5-1-2(C) FUNCTION OF BOARD 60
Samsung Electronics 5-3 61
Circuit Operation Description 62
Internal 63
Loss ( W) 63
5-1-3(D) CONCLUSION 65
5-2 Driver Circuit 66
5-2-2(A) DRIVE PULSES 68
Y Drive board 70
X Drive board 70
Samsung Electronics 5-13 71
5-16 Samsung Electronics 74
Samsung Electronics 5-17 75
5-18 Samsung Electronics 76
Samsung Electronics 5-19 77
5-20 Samsung Electronics 78
Samsung Electronics 5-21 79
5-22 Samsung Electronics 80
Samsung Electronics 5-23 81
5-24 Samsung Electronics 82
Samsung Electronics 5-25 83
5-26 Samsung Electronics 84
Samsung Electronics 5-27 85
5-28 Samsung Electronics 86
Samsung Electronics 5-29 87
5-30 Samsung Electronics 88
5-3 Logic part 89
CN01 During Examination 94
(Internal Clock) 94
After Examination 94
(External Clock) 94
Select PAL Select NTSC 95
Board Waveform Test 98
Samsung Electronics 5-41 99
5-42 Samsung Electronics 100
Samsung Electronics 5-43 101
5-44 Samsung Electronics 102
Samsung Electronics 5-45 103
5-46 Samsung Electronics 104
Samsung Electronics 5-47 105
5-48 Samsung Electronics 106
Samsung Electronics 5-49 107
5-50 Samsung Electronics 108
Samsung Electronics 5-51 109
5-52 Samsung Electronics 110
25. Jig board U1 (LE01) 110
26. Jig board U2 (LE02) 110
Samsung Electronics 5-53 111
27. Jig board U1 (LE01) 111
Pins 39, 40, 41, 42 111
28. Jig board U2 (LE02) 111
5-54 Samsung Electronics 112
29. Jig board U1 (LE01) pin35 112
30. Jig board U1 (LE01) pin46 112
Samsung Electronics 5-55 113
31. Jig board U2 (LE02) pin35 113
32. Jig board U2 (LE02) pin46 113
5-4 Block Diagram 114
5-5-1 In/Out Waveforms 115
5-58 Samsung Electronics 116
Samsung Electronics 5-59 117
5-60 Samsung Electronics 118
Samsung Electronics 5-61 119
5-62 Samsung Electronics 120
10. Glossary 121
10-14 Samsung Electronics 134
Front Panel 135
Rear Panel 136
Remote Control 137
9-2 Wall Mount 139
Insulation rubber 141

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Samsung DVD-L1200/XAA Specifications Page 23

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