How to Use This Repair Guide 11
Part-1: Basic Theory of How an LCD Screen Work 12
How LCD/LED TV Works? 14
How an LCD Display Work 16
What are LCD Screen and LCD Panel? 19
T-con Boar Part Number 20
TAB/COF IC Part Number 20
LCD Panel Part or Model Number 21
Part-2: How an LCD/LED Screen Panel Works 22
Types of LCD Panel and Their Structure 23
The TFT LCD Structure 24
Learn About LCD TV and TFT LCD Displays 25
History of TFT LCD 25
What is TFT LCD? 25
TFT LCD - Electronic Aspects of LCD TVs and LCD Monitors 26
Passive and Active Matrix LCDs 27
Structure of Color TFT LCD TVs and LCD Monitors 29
Driving Circuit Unit 30
How TFT LCD Pixels Work 31
Generating Colors 34
The TFT LCD Pixel 35
The Resolution of an LCD Panel with TAB/COF 37
A Block Diagram of Driving an LCD Panel 38
Gate Driver Signals & Supply Lines 38
How a CPT CLAA320WB02 LCD Panel Work 39
Terminology of the T-con Board and LCD Panel 40
Typical Waveform of Gate Driver Control Signals 46
Timing Control (TCON) IC CM2681A-KQ Diagram 51
If These Supply Voltages & Control Signals Missing What will Happen in LCD Panel? 52
Part-3: How to Troubleshooting & Repairing LCD/LED Screen & Panel 53
Tools and Equipment for LCD Screen Panel Repair 54
How to Isolate Display Problem from Mainboard, T-con Board or LCD Panel? 57
What is TAB Bypass Modification? 59
What is LCD Panel Cut Off Modification? 63
TAB Bonding Machine 67
Laser Repair System 69
Part-4: LCD/LED Screen Panel Repair Case Histories 71
How to Repair Double Images Problem on Samsung LCD Screen 72
Samsung LTA320AP Series LCD Panel with Double Images Problem Solved 87
Samsung LCD Panel with Display Problem Causing by Gate Driver Sides 90
TAB Bypass Modification Repair Case Histories 93
How to Solve LG LCD Panel Display Upside Down Problem 98
How to Solve BOE HV320WXC-200 Panel Upside Down Problem 102
Display Left Right Reverse Problem Solved 104
White Screen Problem on V315B3-C04 T-con Board 106
No Display or Grey Screen - Common Fault on LG 370WX4-SLA1(6870C-0158A) 108
AUO T460HB01 V0 (46T12-C01) T-con Board with Randomly No Display Problem 109
LG 470WU5-SLA1(6870C-0140B) No Display Problem Solved 110
How to Solve Samsung LCD TV Oil Painting Display Problem 112
How to Repair LCD TV Symptom with Blue Screen and Vertical Bars 116
How to Repair the Display Washed Out Screen Problem 118
How to Easily Remove AS-15F or AS-15HF IC without 3 Minutes 120
Part-5: All Good LCD/LED Screen Panel Repairing Information and Bonuses 124
TAB/COF IC Equivalent List 125
TAB/COF Bypass List 129
How to Login to the Universal LCD/LED TV Mainboard Factory Setting 147
How to Solve Display Distortion (Oily Painting Display) Problem in Universal LCD/LED TV Mainboard 153
How to Solve Display Upside Down Problem in Universal LCD/LED TV Mainboard 155
Samsung Display Distortion (Oily Painting Display) Repair Solution 159
This LCD Panel Display Problem is Beyond Repair 164
BONUS-A: LG LED/LCD TV Interconnect Schematic Diagrams
32LD350-Interconnect 168
32LG40-Interconnect 171
42LG70-Interconnect 173
42LH20-Interconnect 177
42LK520-Interconnect 179
42SL80-Interconnect 186
47GA6400-Interconnect 190
47LG90-Interconnect 202
47LH85- Interconnect 206
55GA6400-Interconnect 210
55LX6500-Interconnect 222
79UB9800- Interconnect 225
BONUS-A: T-Con Board Schematic/Circuit Diagrams
AUO T370XW02 V5_CA1-H0453-02_1 227
AUO T420XW01_CA1-H0509-61_1 233
AUO T520HW01-V0-BN07-00650A 238
Chimei V260B1-C03_LG 26LG7R 245
LG LC320WXN-SAC1-731_6870C-0195A 247
LG LC370WX4-SLA1-F11_6870C-0158A 251
LG LC420WUD-SAC1-G31-LC37WU
LC420WU_LC470WU_6870C-0202B
LG LC470WUN-SAA2-731_6870C-4200C 257
Samsung LTA320AP02 276