Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Troubleshooting
Related Manuals for Sanyo PDP-42XR7K
Summary of Contents for Sanyo PDP-42XR7K
-
Page 2: Table Of Contents
CONTENTS Safety precautions………………………………………………………………………..… Alignment instructions …………………………….…….………………………………… Working principle analysis of the unit……………………………….………….…………. Block diagram…………………………………..………………………………….………… IC block diagram………………………………………………………………………..…… Wiring diagram ……………………………………………………………………………. Troubleshooting guide ………………………………………………………………..…… Schematic diagram………………………………………………………………………… APPENDIX-A: Assembly list APPENDIX-B: Exploded view APPENDIX-C: Removing or installing the stand APPENDIX-D: Wall mounting... -
Page 3: Safety Precautions
Note: This maintenance manual is intended only for the reference of the maintenance people. Please pay attention to the following points before carrying out the maintenance work. Safety Precautions Please read the “Points for attention for the Maintenance & Repair of PDP” and “Criterion for Identifying the Defects on Screen”... - Page 4 static electricity. During maintenance operation be sure to cover yourself with anti-static bag and before operation make sure to have it sufficiently grounded. 1.11 There are a big number of connection wires distributed around the screen. Please take care not to touch or scuff them during maintenance or removing the screen, because once they are damaged the screen will fail to work and it’s not possible to repair it.
-
Page 5: Alignment Instructions
effect. 1.21 There is piece of insulator stuck on the rear chassis corresponding to the power supply board. It is used to isolate the cool part from the hot part. Please take care to keep it intact lest it should become a potential safety trouble. - Page 6 Table1 sub-menu adjustment Items Preset Introduce HOTEL 1: HOTEL OPTION of factory menu is optional 0: HOTEL OPTION of factory menu is not optional LOGO 1: display LOGO in no signal or turn on 0: no LOGO display ADC PRESCALE adjust according the power consumption SIF PRESCALE adjust according the power consumption...
- Page 7 check if the white balance is normal, if not, set ALL COLOR to 0 and fine adjust according the method of 3.3.1 b. connect VG-848 YPbPr signal to YPbPr terminal and input TIMING972(1080I/60Hz) PAT908 color bar(include back/white bars), enter submenu of ADC ADJ, select AUTOTUNE and wait for OK display.
-
Page 8: Working Principle Analysis Of The Unit
Working principle analysis of the unit The RF signal received by antenna will be sent to tuner TUN601, then IF signal will be obtained through high amplified and mixed frequency. After pre-intermediate amplified by V608, it will be sent to acoustic surface-wave Z605 to do IF filter and get better IF characteristics, then it will be sent to N602 (TDA4470) to do intermediate amplification, phase-lock loop VCO and synchronous wave detection to get the video signal TV-V;... -
Page 9: Block Diagram
Block diagram Block diagram EDID EDID 24C02 24C02 PS321 HDMI 1/2/3 L/R-VGA FLASH YPbPr (DTV) PDP TV EEPROM CONTROLLER SCART1-RGB SCART1-AV HDCP KEY MST9E89DL SCART1-L/R AUDIO SW. SCART2-L/R HEF4052 L/R-YPbPr PANEL L/R-AV/S SCART2-Y SCART2-C AUDIO AMP. S-VIDEO BH3547F TUNER EAR PHONE TV-V IF AMP AUDIO AMP. -
Page 10: Ic Block Diagram
IC block diagram 1. MST9E89DL The MST9E89DL is a high performance and fully integrated IC for multi-function LCD monitor/TV with resolutions up to full HD (1920x1080). It is configured with an integrated triple-ADC/PLL, an integrated DVI/HDCP/HDMI receiver, a multi-standard TV video and audio decoder, two video de-interlacers, two scaling engines, the MStarACE-3 color engine, an on-screen display controller, an 8-bit MCU and a built-in output panel interface. - Page 11 2. TDA4470...
- Page 12 3. TPA3120D2 The TPA3120D2 is a 20-W (per channel) efficient, Class-D audio power amplifier for driving stereo single ended speakers or mono bridge tied load. The TPA3120D2 can drive stereo speakers as low as 4Ω. The efficiency of the TPA3120D2 eliminates the need for an external heat sink when playing music.
-
Page 14: Wiring Diagram
Wiring diagram... -
Page 15: 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 16 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 17: Troubleshooting Guide
2. Troubleshooting guide 2.1. No raster Connect the power, check if the red indicator is light in STANDBY? Check if X403 PIN9 (5V) of Press POWER button on the main board is normal? unit or remote controller and check the indicator. blue Check if the PIN3 of X401 on Check STANDBY circuit of... - Page 18 2.2. Have raster, but no picture Check if the unit button Does display remote control menu in screen when operation? press menu button? Check if the all channels have no signal? HDMI/VGA/YPRPB Enter factory-menu, Which channel is initialization EEPROM, no signal? then turn off the TV, turn on again, display Check N304 and...
- Page 19 2.3. No sound (TV channel) Check if the voltage Check the wave of Check N203 and of N203 pin1, 3, 10, pin 5, 6 of N203 its periphery 12, 19, 20 are normal Check the wave of Check N304 and Check power board N602 pin 24 its periphery...
-
Page 20: Schematic Diagram
APPENDIX-A: Main assembly PDP-42XR7K MAIN COMPONENT AND IT'S NO. NAME N304 MST9E89DL (5270989005) Main board XI6HK0300110 N602 TDK4470MFL (5274470001) N203 TPA3120-D2 (5273120001) SCART connection board XI6HK0304610 Key board XI6HK0300510 Power filter board XI6FK0105110 Power board XI6HU0522010 Remote control RC-Y60-0F XI6010Y06006... -
Page 21: Appendix-B: Exploded View
APPENDIX-B: Exploded view (PDP-42XR7K) - Page 22 PART LIST OF EXPLODED VIEW DESCRIPTION Right speaker Left speaker Front cabinet Key board Panel Power filter board Power board SCART connection board Main board Back cabinet Stand User manual Remote Control...
- Page 23 PART LIST PDP-42XR7K ver. REF.No. PARTS No. DESCRIPION Q'TY REMARK XI6170741000 Right speaker XI6170740000 Left speaker XI5QI06R401A Front cabinet XI6HK0300510 Key board XI5205422206 Panel 1 LG PDP42G1 XI6FK0105110 Power filter board XI6HU0522010 Power board XI6HK0304610 SCART connection board XI6HK0300110 Main board...