FILE NO. SERVICE MANUAL LCD Television Model No. LCD-42K30TD Service Ref.No. LCD-42K30TD-00 Product Code: 1-130-184-11 Contents Original Version Safety Notice..........2 Chassis Series:UE5-A Chassis Block Diagrams......4 CPU Block Diagrams .........5 IC Block Diagrams ........6-8 Give complete "SERVICE REF. NO." for On-screen Service Menu System..9-12...
Safety Notice Safety Precautions The following precautions must be observed. 1:Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the cabinet or on the chassis. 2:When replacing a chassis in the cabinet, always be certain that all the protective devices are installed properly, such as, control knobs, adjustment covers or shields, barriers, etc..
Page 3
Model LCD-42K30TD Maximum Visible Range 106cm Picture Resolution 1920(H) x 1080(V) Viewable Angle(L /3) L/R:+/-89D, U/D:+/-89D Brightness 500cd/m² Mobile Trailer Time Voltage AC110-242V 50/60Hz Power Consumption 188W Power Management VESA DPMS Digital TV System DVB-T(2K/8K COFDM), Band Wide: 7MHZ Video decoder:MPEG2 MP@HL...
IC Block Diagrams K4H561638H 16Mb x 16 32Mb x 8 64Mb x 4 66Pin T S O P (400mil x 875mil ) (0.65mm Pin Pitch) Bank Address BA0~BA1 UDQS LDQS Auto Precharge AP/A AP/A AP/A 256Mb T S O P - I I Pa c k a g e Pino u t...
On-screen Service Menu System General This set has an On-screen Menu system included in the CPU that allows remote operation for most of the service adjustments. On-screen Service Menu System Quick operation is needed to enter Service Mode. r How to enter the Service Menu 1.
Page 11
On-screen Service Menu System Service Adjustment Data Table Source Item Name Initial Data Remark Contrast Mid <0 - 255> MSD109CL-H-LF Can not change Contrast Min <0 - 255> MSD109CL-H-LF Can not change Colour Max <0 - 255> MSD109CL-H-LF Can not change Colour Mid <0 - 255>...
On-screen Service Menu System Source Item Name Initial Data Remark SOURCE: ALL BASE R-GAIN <78> MSD109CL-H-LF TEMPERATURE: ALL BASE G-GAIN <78> MSD109CL-H-LF BASE B-GAIN <78> MSD109CL-H-LF SOURCE: R-OFFSET <128> MSD109CL-H-LF TEMPERATURE: ALL G-OFFSET <128> MSD109CL-H-LF B-OFFSET <128> MSD109CL-H-LF 4. WHITE PATTERN: <Black/OFF/Whilte/Red/Green/Blue>...
Service Adjustments CAUTION ! Do not attempt to adjust service adjustments not listed below otherwise it may cause loss of performance and for correct operation. Setting the Initial data This adjustment is controlled by the CPU (IC5500) through the IIC Bus Data Line in the chassis, and those adjustment data are memorized the memory IC (IC5750).
Page 14
Service Adjustments ADC ADJUST 1. Enter the Service Mode. 2. Select "ADC ADJUST" by pressing button, then press OK button to enter ADC ADJUST menu. ADC ADJUST SOURCE : R-GAIN : G-GAIN : B-GAIN : R-OFFSET : G-OFFSET : B-OFFSET : AUTO ADC FAIL 3.
Service Adjustments W/B ADJUST Pattern Condition Picture Mode: STANDARD Color Temperature: NORMAL Aging Time: More than 10 minutes Adjustment 1. Enter the Service Mode. 2. Select "W/B ADJUST" by pressing button, then press OK button to enter W/B ADJUST menu. W/B ADJUST BASE R-GAIN : BASE G-GAIN :...
Mechanical Disassembly ( ) Lid Back Removal 1. Remove screws A , B. 2. Take the Lid Back off , please refer to Picture 2. (A:2pcs , B:3pcs) BACK Picture 1. MAIN BOARD POWER BOARD Picture 2.
Mechanical Disassembly ( ) Chassis Board and Stand Base Removal 1. Remove Screw E , take Power Board Holder, then take Power Board off. 2. Remove Screw A and E , take Main Board off Remove Screw A and E , take Main Board off Screw A and E , take Main Board off A and E , take Main Board off and E , take Main Board off...
Chassis Electrical Parts List Note: Parts order must contain Service Ref. No., Part No., and descriptions. Key No. Part No. Description Key No. Part No. Description 652 002 3222 SOCKET,HOUSING 2P SC1900 945 076 3503 SURGE-ABSORBER *03* 952 001 6324 SOCKET,HOUSING 3P SC1901 945 076 3503...
Page 19
Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description Q681 305 023 5012 TR 2SD400-E-MP-AE 406 021 3004 TR CJD400-E 304 091 3408 CERAMIC 0.22U K Q682 305 006 6715 TR 2SA984-F-AA C1604 304 108 4503 ELECT 47U M 406 021 6609 TR 3CG984-F...
Page 20
Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description 304 091 3200 CERAMIC 220P K C675 304 104 4903 CERAMIC 0.1U K C625 303 427 1814 MT-POLYEST 0.1U K 450V 304 091 2609 CERAMIC 0.1U K C626 303 427 1814 MT-POLYEST 0.1U K...
Page 21
Chassis Electrical Parts List Key No. Part No. Description Key No. Part No. Description R1608 301 057 5516 OXIDE-MT 0.47 JA R650 301 187 9217 MT-GLAZE 10 JA 1/4W 402 119 6308 OXIDE-MT 0.47 JA R651 301 256 6314 MT-GLAZE 47K JA 1/10W 302 120 5003 OXIDE-MT 0.47JA R652...
Schematic Diagram LED BOARD K1903 K1904 B4J10XB070N B4J10XB070N 5VSTB K1904_1 K1904_2 LED1 K1904_3 LED2 K1904_4 LED3 K1904_5 BACKLIGHT K1904_6 K1904_7 KEY BOARD R1903 KE Y _ P O W E R 1/10GJ470C K1900_ 1 KE Y 0 R1900 R1901 KE Y 1 1/ 1 0G J 6 80C 1/ 1 0G J 4 70C G N D...
Page 44
Schematic Diagram RS232C RS232C OUTPUT RS232C INPUT J2075M SC2003 SC2002 Z30B0220G Z30B0220G RS_TX RS_RX Vi n C2023 Vo u t Gr o u n d / Ad j u s t...