Related Manuals for Sanyo LCD-42XR9DKH
Summary of Contents for Sanyo LCD-42XR9DKH
- Page 1 FILE NO. SERVICE MANUAL LCD-42XR9DKH PRODUCT CODE No. PRODUCT CODE No. LCD TV 1 682 347 97: PAL-I,NTSC(AV) REFERENCE No.:SM0915067...
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Page 2: Table Of Contents
CONTENTS Safety precautions………………………………………………………………………..… Alignment instructions …………………………….…….………………………………… Block diagram…………………………………..………………………………….………… Working principle analysis of the unit……………………………….………….…………. IC block diagram………………………………………………………………………..…… Trouble shooting…….………………………………………………………………..…… Wiring diagram ……………………………………………………………………………. Schematic diagram………………………………………………………………………… APPENDIX-A: Assembly list APPENDIX-B: Exploded View... -
Page 3: Safety Precautions
Attention: This service manual is only for service personnel to take reference with. Before servicing please read the following points carefully. Safety precautions 1. Instructions Be sure to switch off the power supply before replacing or welding any components or inserting/plugging in connection wire Anti static measures to be taken (throughout the entire production process!): a) Do not touch here and there by hand at will;... - Page 4 would be unable to work and no way to get it repaired. If the connection wires, connections or components fixed by the thermotropic glue need to disengage when service, please soak the thermotropic glue into the alcohol and then pull them out in case of dagmage.
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Page 5: Alignment Instructions
Alignment instructions 1. Test equipment VG-848 (YPbPr,VGA signal generator) VG-849 (HDMI signal generator) CA210 (white balance equipment) 2. Alignment flow 2.1 Voltage of power supply test According to the wiring diagram specified by product specification, connect power board, digital board, IR/key board and backlight board correctly; then power on and press key to turn on the unit. - Page 6 Input YPbPr signal，check if every function is normal. Input RGB signal，check if the display is normal; check if every function is normal –analog parameter control, horizontal/vertical center, etc. Input HDMI signal，check if the display is normal; check if every function is normal –analog parameter control, horizontal/vertical center, etc.
- Page 7 will be in Standby state after power-on; “ Memory ” means the set will in the last power-off state after power-on ; “ForceOn” means the set will be working automatically after power-on , the mode is also used for factory-machine-aging; default setting should be “Standby” mode unless specified by customer requirement;...
- Page 8 prompt “success” for adjustment completion is displayed; e) Input Component signal (VG-848 Timing:972(1080i)，Pattern:918 100% color bar), move cursor to item “MODE”，press keys “▲” and “▼” to select item “YPbPr（HD）”, then move cursor to item “AUTO ADC” and press key “OK” to begin adjustment automatically until a prompt “success”...
- Page 9 Check if the picture of every channel is normal after adjustment; Adjustment rules for reference as below: adjust B gun: adjust B gun value downwards , then coordinates of X、Y will rise; adjust B gun value upwards , then coordinates of X、Y will descent; adjust R gun will effect the coordinate of X and the value of Lv a little: adjust R gun value upwards , then coordinate of X will rise;...
- Page 10 1920×1080 56.25 148.5 1080p (50p) 1920×1080 67.432/67.5 59.94/60 148.35/148.5 1080p (59.94p/60p) 4.4 R,G,B port Input RGB D-SUB signal from signal generator VG-848 with the formats as Table 4 respectively, check if the display and the sound are normal under the circumstances of power-on/off, switching channel, switching signal format, etc.
- Page 11 720(1440)×480i@59.94/60 720(1440)×480 15.734/15.75 59.94/60 27/27.027 Hz,4:3/16:9 Mode 1 59.826/59.886 720(1440)×240p@59.94/60 720(1440)×240 15.734/15.75 27/27.027 Hz,4:3/16:9 mode 2 60.054/60.115 (2880)×480 15.734/15.75 59.94/60 54/54.054 (2880)×480i@59.94/60 Hz,4:3/16:9 mode 1 59.826/59.886 (2880)×240 15.734/15.75 54/54.054 (2880)×240p@59.94/60 Hz,4:3/16:9 mode 2 60.054/60.115 1440×480 31.469/31.5 59.94/60 54/54.054 1440×480p@59.94/60 Hz,4:3/16:9 1920×1080 67.432/67.5 59.94/60...
- Page 12 6. Instruction of factory software burning as Table 6 Table 6 Instruction of factory software burning Instruction Burned Location size Part No. Part type of software before Burning method function burned with program Main NA05 5271280501 MX25L12805DMI-20G ALL100, write-protect setup, program Below refer to Note 1 in detail...
- Page 13 Fig. 2 Write-protect setup 3) Select menu “Connect”, a dialog “Device Type is MX25L12805D” will be displayed as Fig. 3 to show succeeding in connecting. If failing to connecting, select the first menu “Device” and manual select item “MX25L1280D”, then press key “Connect”. Fig.
- Page 14 Fig. 4 Burning file 5) Select menu “Auto”, then select items “All chip”, “program” and other switches as Fig. 5 Fig. 5 Switches 6) Press key “Run” as Fig. 4 to begin burning software, there are two steps for the process: Erase and Program, normal burning processes are as follows: the first course “Erasing…”...
- Page 15 Fig. 6 A prompt “Pass” beside the key “Run” for successful burning 8) Need not exit from ISP burning interface and only repeat the process 3）and 5）to go on burning software for other sets. Note 3: On-line burning and upgrading method from a USB port 1）...
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Page 16: Block Diagram
Block diagram Working principle analysis of the unit 1. PAL/SECAM signal flow PAL/SECAM signal from antenna is inputted into TUNER FQD1116 which is an analog-digital-integrative model, the RF signal is demodulated by the TUNER, then CVBS signal and audio difference IF signal SIF are outputted. TUNER FQD1116 is controlled by main chip MSD209 through I2C bus. - Page 17 output dual-track (stereo) analog audio signal. via MSD209 pre-amplifying, sound processing and volumn control, the signal is sent into earphone amplifier BH3547 to be amplified, then output two ways ; one way is sent to earphone jack directly, the other is inputted into class-D audio power amplifier R2A15112FP to be amplified and then outputted to speakers.
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Page 18: Ic Block Diagram
IC block diagram 1. MSD209... - Page 19 Twin-turbo 8051 Micro-controller VIF Input Support Transport Stream De-multiplexer DVI/HDCP/HDMI Compliant Input Port MPEG-2 A/V Decoder High-Performance Scaling Engine MPEG-4 Decoder Auto-Configuration/Auto-Detection H.264 Decoder Video Processing & Conversion NTSC/PAL/SECAM Video Decoder Output Interface Multi-Standard TV Sound Processor CVBS Video Output Digital Audio Interface 2D Graphics Engine Analog RGB Compliant Input Ports...
- Page 20 2. LG-8G42-A1 The LGS-8G42-A1 is a single chip demodulator fully compliant with GB20600-2006 standard. It uses TDS-OFDM (Time Domain Synchronous-Orthogonal Frequency Division Multiplexing), a core technology on which the China Digital Television Terrestrial Broadcasting System Standard (GB20600-2006) is based. Designed for digital terrestrial reception of high definition, standard definition and other multimedia-based services, the demodulator is intended for indoor, outdoor, fixed, portable and automotive applications.
- Page 21 Good single-frequency function Optimized for maximum signal resiliency in all conditions (impulse noise, echoes, fading, etc.) Full I C bus support Complies with RoHS requirements (Pb-free, or Green) Support digital IF signal and digital baseband IQ input Standard I C ports control MPES-TS port connect to MPEG decoder 3.
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Page 22: Trouble Shooting
Trouble shooting 1. Fault clearance Before servicing please check to find the possible causes of the troubles according to the table below. 1.1 Antenna (signal): Picture is out of focus or jumping Bad status in signal receiving Poor signal Check if there are failures with the electrical connector or the antenna. - Page 23 signal types. Picture too bright and there is Check if the contrast setting is too high. distortion in the brightest area Possibly the output quality of DVD broadcaster is set too high. It maybe also due to improper terminal connection of the video frequency signal in a certain position of the system.
- Page 24 2. Troubleshooting guide 2.1. No raster Turn-on power supply, check if the red indicator is light in the STANDBY? Press Check if 5V-S POWER button on RC or of X501-11# on the main the set and check the board is normal ? indicator light Blue Check...
- Page 25 2.2. Raster, but no picture Does Remote Check Control or keys digital board operate the set ? Press MEMU Button, is the display Normal? Is there no Is X508-1# signal in each 12V? channel? Check Enter the Check LVDS Check T-CON circuit of each factory menu and perform power supply...
- Page 26 2.3. Picture, but no sound Check if N511-4#,5#,32#,33# are 24V? Check 24V power Check if supply on power N511-12#,25# input board and other signal? circuits Check the circuit Check if around the sound N511-10#,27 is high level? amplifier Check the mute Check if circuit of the sound N301-3#,5# input signal?
- Page 34 APPENDIX-A: Main assembly LCD-42XR9DKH MAIN COMPONENT AND IT'S NO. NAME N101 MSD209FG-LF (5270209001) N201 LGS-8G42-A1 (5270842001) N103 MX25L12805DMI-20G (5271280501) Data processing board XI6KE00669L0 N511 R2A15112FP (5271511201) N106/N107 K4T51163QG-HCF7 (5275116301) N202 W9864G6EH-6 (5279864001) TUNER201 FQD1116ME/I V (5524000029) IR board XI6HE0350910 Key board...
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Page 35: Appendix-B: Exploded View
APPENDIX-B: Exploded view (LCD-42XR9DKH) - Page 36 PART LIST OF EXPLODED VIEW DESCRIPTION Front cabinet IR board Speaker Panel Data processing board Power board Key board Back cabinet Stand User manual Remote Control...
- Page 37 PART LIST LCD-42XR9DKH ver. REF.No. PARTS No. DESCRIPION Q'TY REMARK Front cabinet XI6642420070 IR board XI6HE0350910 XI6170805000 Speaker XI5203428508 Panel V420H1-L15 XI6KE00669L0 Data processing board XI6KE00620L0 Power board XI6HE0330510 Key board XI5H4246K020 Back cabinet XI6151189000 Stand User manual XI5944035670 XI6010J03001 Remote Control Only the parts in above list are used for repairing.
- Page 38 Assemble & Disassemble the Pedestal Base (Option) If the stand is provided, please read these instructions thoroughly before attempting this installation. Safety Precautions: 1. Please read these instructions thoroughly prior to attempting this installation. 2. Be sure to handle this product very carefully when attempting assembly. If you are unsure of your capability, or the use of tools necessary to complete this activity, refer to a professional installer or service personnel.
- Page 39 Assemble & Disassemble the Pedestal Base (Option) To remove the stand column: 1. Lay your TV flat (screen down) on a table or bench. Make sure that you put down a soft cushion or cloth so that your TV is not scratched. 2.
- Page 41 July/2009...