Sanyo PDP-42XS1 Service Manual

Sanyo PDP-42XS1 Service Manual

Sanyo pdp-42xs1 pdp tv service manual
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SERVICE MANUAL
PDP TV
SPECIFICATIONS
Power source: 100-240V, 60/50Hz
Power consumption: 400W
Dimension: 1,246(W) x 731(H) x 305(D)mm
Net Weight: Approx. 41.0kg
Specifications subject to change without notice
FILE NO.
PDP-42XS1
REFERENCE No.
SM0915001

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Summary of Contents for Sanyo PDP-42XS1

  • Page 1 FILE NO. PDP-42XS1 SERVICE MANUAL PDP TV SPECIFICATIONS Power source: 100-240V, 60/50Hz Power consumption: 400W Dimension: 1,246(W) x 731(H) x 305(D)mm Net Weight: Approx. 41.0kg Specifications subject to change without notice REFERENCE No. SM0915001...
  • Page 2: Table Of Contents

    CONTENTS Safety Precautions………………………………………………………………………..… Alignment instructions. ………………………………….…………………………….… Method of software upgrading …………………………………………….…………………… Working principle analysis of the unit……………………..……………………….………… Diagnose and service of panel……………………………………………………………..…… Wiring diagram……………………………………………………………………………..… Assembly list………..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…..…. Trouble shooting guide ………………………………………………………..……………... Schematic diagram …………………………………………………………………….…..
  • 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 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

    Alignment instructions 1 Alignment equipment PM5518 (video signal generator) 54200 (SCART video signal generator) VG-849 (VGA signal generator) CA100 (white balancer) VG-849 (HDMI signal generator) 2 Alignment flow-chart The alignment flow-chart is shown as fig-1 Check DDC(N604/N702) and FLASH(N502) To produce digital board and HF board Check the digital board and HF board All testing Connect with central signal source, then check each function of TV such as...
  • Page 6 3.4 EEPROM initialization Enter page one of the factory menu, select the EEPROM INITIALIZE to ON. 3.5 White balance adjustment The eight level gray-scale signal of FLUKE PW5148 video generator sends to AV channel, enter the factory menu white balance adjustment page. Select the standard color temperature item, fixed the R GAIN to be 32H, adjust the seventh color coordinate (284, 299) of B, G GIAN;...
  • Page 7 normal. 4.3.2 Check SCART OUTPUT special function 4.3.2.1 SCART1 terminal function Input signal in the TV states, connect the SCART1 terminal to the TV. Change the TV program, check if output signal of SCART1 is TV signal, and the image and sound is normal, change the unit channel, the CART1 output TV signal, it can not other signal.
  • Page 8 720X400@85HZ 800X600@56HZ 800X600@60HZ 800X600@72HZ 800X600@75HZ 1024X768@60HZ 1024X768@70HZ 1024X768@75HZ 1280X1024@60HZ 4.7 Ex-factory setting see to TABLE 3 - TABLE 7 TABLE 3 Factory Option Menu ITEMS EX-FACTORY SETTING IIC Bus-off EEPROM Erase Backlight Adjustable Back Light Menu Timeout Blank switch enable ShowLogo Auto Channel Lable West Europe / East Europe / Cyrillic /...
  • Page 9 Prescale FM/AM Prescale Nicam Scart TV Volume Scart AV Volume D/K select HDEV3 Equalizer Bands Max Spatial Mode Spatial Strength TABLE 5 Factory Video limit Setting ITEMS CVBS SC-RGB YPBPR D-SUB HDMI Bright Min Bright Middle Bright Max Contrast Min Contrast Middle Contrast Max...
  • Page 10 Sharpness Note: in factory menu states, it can change the factory mode to value of the image and sound, else select the image and sound balanced value in the other states. TABLE 7 SOUND equilibrium value setting Live Rock Custom 120Hz 500Hz 1.5KHz...
  • Page 11: Method Of Software Upgrading

    Method of software upgrading 1. Enter the software upgrading state of the TV Method 1: press the VOL- button in the unit, turn on the main power switch, then the screen display black screen, but the indicator to blue. Method 2: Enter factory menu, select the IIC-BUS OFF item. 2.
  • Page 12 5. Select WRITE DEVICE item of the device menu, till the right screen display “DONE”. 6. turn off the power , restart the unit. Note: because of the software, it may be no-stabilization, the software can auto download and write. Upgrading tools Connection cable...
  • Page 13 Upgrading port NOTE: Do not shut the power off or turn the TV set on during the FLASH write. Otherwise it may lead to no way for flash to rewrite.
  • Page 15 Including: CPU: RENESAS M16C (M30620SPGP) Video decoder: SVP-EX62 / sub-screen TVP5147 AD conversion/line by line conversion /Teletext decodes: SVP-EX62 HDMI: SILICON IMAGE the second generation processing CMOS chip SiI9011 Audio processing: MSP3410 Sound power amplifier: D class audio MP7720 (single channel) The CPU of the unit is M16C (N501) which mainly control the working of all CMOS chips, including (receiving infrared telecontrol / keystoke, standby control, I/O control);...
  • Page 16 Descriptions of the pins: 2, 3: SCL, SDA, control the IC working 27, 28: Output to the right and left sound channel of sound power amplifier 33, 34: the right and left sound channel of earphone 36, 37: the right and left sound channel of AV OUT sound 47, 48: the left and right sound channel from main board 50, 51: the left and right sound channel of AV IN sound channel 53, 54: the left and right tracks of the TV sub- channel...
  • Page 17 Thereinto: Pin16 is the PIP TV signal input Pin8 foot is AV or Y (SV) input Pin1 is C (SV) signal input Pin7 is SCART CVBS or Y signal input Pin80 is SCART C signal input 3.2 SVP-EX62 diagram shown as follows:...
  • Page 18: Diagnose And Service Of Panel

    Diagnose and service of panel 1. Block function of panel The power supply board, Logic board, X drive board, Y drive board, Logic BUFFER (E and F) and Y BUFFER (upper and lower) of the PDP panel. Y BUFFER (upper) Power supply board Y drive board X drive board...
  • Page 19 Check if the socket between Y driving board and Y BUFFER is plugged well. If not, plug it well. If yes then replace Y BUFFER (upper, lower) in respect to the upper, lower part of the dark line on the screen. 2.3 There appear on the screen one or several horizontal lines that are much brighter than the remaining horizontal lines at the edge: Check if the socket between Y driving board and Y BUFFER is plugged well.
  • Page 20 COF and logic BUFFER has problem. If no problem, check if the connection sockets between the logic BUFFER and the logic board is normal. If it’s normal, then replace the logic BUFFER. If the problem still remains after the replacement, then replace the logic board. Finally if the problem is still there, then the problem lies with COF.
  • Page 22: Assembly List

    Assembly list Analog signal processing board Digital signal processing board Name Main IC and NO. N201 SVP-EX62 (353-DPTV0-60) N302/N302 DS90C385MTD (353-03850-20) N401 K4D2632838F (353-26323-10) Main board 667-PS42W6-69 N501 M30620SPGP (353-30620-20) N502 W29C040P (353-29040-30) N607 SII9011CLU (353-90110-10) N801 TVP5147PFP (353-51470-10) N102/103 MPS7720DS (353-77200-10)) Video processing board 667-PS42W6-40 N101 MSP3410G...
  • Page 23: Trouble Shooting Guide

    Trouble shooting guide 1.No raster, no picture, no sound No raster, no picture, no sound. Check if the power supply indicator light is on. Red indicator is on Red indicator is off After turn on the unit, check Check 5V-STBY if the blue is normal.
  • Page 24 2.With sound but no picture: With sound but no picture. Display logo? Check if all other channel has no picture. Check if the X301 have the signal wave. Unfix X901, X902 and X301, set Turn to check 4 Check N201 Normal SW501 of the power supply board of program...
  • Page 25 3.With picture but no sound: Check if the video processing board X110 is output. Check if the second pin of sound The sound damaged. power amplifier input the signal. Measure if the sound The sound power amplifier or peripheral input of current channel circuit has problem.
  • Page 26 4.2 no picture on S-terminal Check if the C228 and C229 have the signal input. Check if the pin 2 of Check periphery circuit of N201, N708 has input signal. crystal and power supply Check S-terminal Check the periphery circuit socket to N708 channel of N708 and power supply 4.3 NO picture of TV channel...
  • Page 27 4.3.2 sub frame Check if the pin16 of N801 have the signal input. Check if H and V sync clock Check if the pin12 of TUNER102 signal of N801 output is normal. in TV board has the signal output. Check between Check the peripheral Check the Check the...
  • Page 28 4.5 No picture of SCART1 Check if the C223, C224, C225 and C226 have the signal input Check if between the Between the SCART1 pin16 of SCART1 socket socket and N201 channel and N501 is normal. has problem Check connector Switch RGB and VIDEO input channel SCART1, check if the PIN87...
  • Page 29 4.7 No picture of YPBPR or YCBCR Check if the C220, C221 and C222 have the signal input Check if the pin4, pin7 Check peripheral and pin9 of N706 have circuit of N201, crystal signal input and power supply Check between N706 Check if the pin2, pin5 and and N201 channel...
  • Page 30 4.9 NO SOUND of HDMI channel Check if the pin1 and pin3 of N707 have the signal input Check the program Check if the pin1 and pin12 of N707 have signal input Check if the pin7 and pin10 of Check the peripheral circuit of N707 and power supply N707 have signal input Check between N601...
  • Page 31 4.10 Abnormal of the picture: 4.10.1 color abnormal a. A certain differential wire pair of LVDS (RX0+/-, RX1+/-, RX2+/-, RX3+/-) of X301 is abnormal, which may lead to lack of color (it’s not a complete loss of color). b. Failure with resistor rows R225~R2300, which may lead to loss of corresponding color from the gray degree corresponding to the picture of all channels.
  • Page 32 Model NO. PDP-42XS1 203-PS42W60-13 XIIL27W1802F DIGITAL PROCESSING ASS'Y SOUND PROCESSING ASS'Y XI667PS42W669 POWER ASS'Y TV BOARD ASS'Y XI667PS42W640 FRONT CABINET XI780I06R07A0 BACK CABINET XI611I08RQAF3A USER MANUAL XIPS42W6S300...
  • Page 33 603-PS42W6S-00 Ver.1.0...

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