Sanyo PDP-42XS1 Скачать руководство пользователя страница 24 | Manualshive

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background image

22

2.With sound but no picture:

With sound but no picture.

Display logo?

Check if all other channel

has no picture.

Check N201

and periphery

circuit

Turn to check 4

of program

Check if the X301

have the signal wave.

Unfix X901, X902 and X301, set

SW501 of the power supply board

as AUTO, use to itself source

signal, and check if turn on the

unit is normal

Check the input signal of N301

and N302 and power supply.

The screen damaged.

N301 and N302

damaged.

Check N201 and the circuit

of output.

Yes

No

No

Yes

Normal

Normal Abnormal

Abnormal

Abnormal

Normal

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Содержание PDP-42XS1

Страница 1: ...ONS Specifications subject to change without notice SERVICE MANUAL SM0915001 REFERENCE No PDP 42XS1 PDP TV 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 ...

Страница 2: ...autions 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 1 3 9 12 16 19 20 21 30 ...

Страница 3: ...therwise there will be kickbacks 1 5 In case foreign substances such as water liquid metal slices or others fall into the module carelessly power must be cut off immediately Keep the module as it is and do not move anything on the module Otherwise it might be possible to contact the high voltage or cause shock short circuit so that it may lead to fire or electric shock 1 6 If there is smoke abnorm...

Страница 4: ...with plasma and it s not abnormal However please try as much as possible to avoid showing a still picture of high brightness for a long time during operation 1 16 As a digitalized display devise this module is provided with error diffusion technology and the gray scale and false enhancement of contour can be displayed by reusing of sub field As compared with cathode ray tube it can be found in the...

Страница 5: ...election the adjustment page menu press CH and CH buttons to selection item press VOL and VOL buttons to set item press the MENU button exit the factory menu again If the unit does not turn off you press the SLEEP can enter factory menu 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 c...

Страница 6: ...normal 4 3 SCART terminal note check the SCART terminal set display mode to AUTO 4 3 1 Check SCART INPUT special function 4 3 1 1 SCART1 terminal function a After turn on the unit connect the SCART1 to PM54200 signal generator then the unit auto select to SCART1 mode b SCART signal generator sends CVBS signal to the unit check if the image and sound is normal It sends image format 16 9 and 4 3 to ...

Страница 7: ...signal Mode TIMING parameter VG848 NO 480I 712X484 60HZ 968 480P 720X484 60HZ 978 576I 702X574 50HZ 969 576P 756X557 50HZ 979 720P 50HZ 1280X720 50HZ 5SET 720P 60HZ 1280X720 60HZ 976 1080I 50HZ 1920X1280 50HZ 1SET 1080I 60HZ 1920X1280 60HZ 972 4 5 VGA terminal Input the VGA signal VG 848 signal generator separate input VGA format signal of table 1 check if the image and sound is normal If the imag...

Страница 8: ...lume 75 6EH Volume 100 76H HP VOLUMESETTING ITEMS EX FACTORY SETTING Volume 1 64H Volume 25 96H Volume 50 A1H Volume 75 AEH Volume 100 BEH MSP Scart1 Volume 72H ITEMS EX FACTORY SETTING Prescale Scart 4CH ITEMS EX FACTORY SETTING IIC Bus off Off EEPROM Erase Off Backlight Adjustable Off Back Light 100 Menu Timeout 10 Blank switch enable Off ShowLogo On Auto Channel Lable On TT Char Group West Euro...

Страница 9: ...BH 18H Contrast Min 09H 0CH 16H 10H 0CH Contrast Middle 20H 20H 26H 32H 1FH Contrast Max 2AH 2DH 3EH 3FH 29H Sharpness Min 00H 00H 00H 00H 00H Sharpness Middle 10H 10H 10H 10H 10H Sharpness Max 1FH 1FH 1FH 1FH 1FH Color Min 00H 00H 00H 00H 00H Color Middle 3FH 3FH 3FH 3FH 32H Color Max 50H 7FH 7FH 7FH 63H Hue Min CEH CEH CEH CEH CEH Hue Middle 00H 00H 00H 00H 00H Hue Max 32H 32H 32H 32H 32H TABLE ...

Страница 10: ...50 50 55 50 1 5KHz 50 60 55 50 5KHz 80 70 55 50 10KHz 85 70 55 50 4 8 Ex factory setting of user menu 4 8 1 select TV channel 4 8 2 video menu Mode Standard NR Medium APL ON 4 8 3 sound menu Volume 20 Balance 00 Equalizer Custom HP Volume 20 4 8 4 edit menu Color System Auto Sound System DK 4 8 5 option menu Default Zoom Auto Child Lock Off Menu Language English Country UK WSS OFF Blue Screen On N...

Страница 11: ...er switch then the screen display black screen but the indicator to blue Method 2 Enter factory menu select the IIC BUS OFF item 2 Connection upgrading tools with upgrading port 3 Dual click IAPWriter logo enter the upgrading states if the PC and the IIC communication trouble it can prompt 4 Select the file menu load the software follow as ...

Страница 12: ...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 Connection cable Upgrading tools ...

Страница 13: ...11 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 Upgrading port ...

Страница 14: ...12 Working principle analysis of the unit 1 Block diagram ...

Страница 15: ...ourteen foot of TUNER1 supply the power 5V for the high frequency distribution part Tuner under the control of assistant CPU N502 SDA SCL to choose the appropriate channel and then switch to the right TV system output video signals and audio signals after HF amplifier and IF amplifier decoding The output signals of TUNER1 sent to decoder SVP EX62 as the main screen display while TUNER2 sent to dec...

Страница 16: ...he left and right tracks of the TV main channel 67 69 the SIF input of the TV main channel and sub channel The MP7720 is a sound high effect of the D class amplifier it output 10W in the without cooling fin 3 picture parts AV SV and SCART AV YC via switch change N708 after them sent to SVP EX62 decode then two way AV SV and PIP TV to TVP5147 decode but this unit only PIP TV decode TVP5147 chip is ...

Страница 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 ...

Страница 18: ...l sent from logic board Logic board to process the image signal sent from the main board to produce addressing signal and to provide driving signal for X and Y driving boards Logic BUFFER board To convert the data signal and control signal sent from the logic board into the signals required by COF Y BUFFER board to transmit the scanning signal from the Y driving board to the screen which is divide...

Страница 19: ...one vertical unlit line or a vertical entirely unlit block a If it s one vertical unlit line then COF has problem b If it s a vertical entirely unlit block then first check if the connection socket between COF and logic BUFFER has problem If not check if the connection sockets between the logic BUFFER and the logic board is normal If yes replace the logic BUFFER Finally if the problem still remain...

Страница 20: ... then replace the logic board Finally if the problem is still there then the problem lies with COF 6 There appear on the screen abnormal bright spots or blocks that are different from what s described above a Check if the connection socket between COF and logic BUFFER board has been well plugged b Replace the logic BUFFER board If it s not solved then replace logic board If the problem still remai...

Страница 21: ...301 31PIN YPbPr Audio L R VGA Earphone input HDMI Power supply switch assy speaker Button board Logic circuit board P1 Power supply CN801 CN804 CN802 X710 X712 X709 SCART SCART Earphone output S VIDEO VIDEO 667 PS42W6 40 Video board X110 X111 RF Earphone CN01 X903 X703 X104 X102 X101 X103 X109 X711 Sub TUNER Main TUNER ...

Страница 22: ...N501 M30620SPGP 353 30620 20 N502 W29C040P 353 29040 30 N607 SII9011CLU 353 90110 10 N801 TVP5147PFP 353 51470 10 Video processing board 667 PS42W6 40 N102 103 MPS7720DS 353 77200 10 N101 MSP3410G 353 34100 80 N104 NJW1109M 353 11090 20 Remote control 301 IL27W18 02 X Button board 667 PS42W6 05 Digital signal processing board Analog signal processing board ...

Страница 23: ...oard and test 5V STBY Check power supply board Check the digital signal processing and analog signal processing board After turn on the unit check if the blue is normal Check if the blue and red indicator is normal N502 is Abnormal Check the union joint of the power supply board to LVDS line Check if the pin2 of X902 is high level No raster no picture no sound Red indicator is on Normal Red indica...

Страница 24: ... Check if the X301 have the signal wave Unfix X901 X902 and X301 set SW501 of the power supply board as AUTO use to itself source signal and check if turn on the unit is normal Check the input signal of N301 and N302 and power supply The screen damaged N301 and N302 damaged Check N201 and the circuit of output Yes No No Yes Normal Normal Abnormal Abnormal Abnormal Normal ...

Страница 25: ... The sound damaged Check if the second pin of sound power amplifier input the signal Measure if the sound input of current channel of N101 is normal Check MSP3440 or peripheral circuits Check different levels of circuit following input audio signal channel No Yes No Yes No Yes Check if the C228 has the signal input Check if the pin 2 of N708 has input signal Check periphery circuit of N201 crystal...

Страница 26: ...ystal and power supply Check the periphery circuit of N708 and power supply Check the S terminal socket to N708 channel Yes No Yes No Check if the C227 have the signal input Check if the pin 2 of TUNER101 in TV board has input signal Check periphery circuit of N201 crystal and power supply Check the periphery circuit of TUNER101 and power supply bus wire Check the TUNER101 to N708 circuit Yes No Y...

Страница 27: ...nd power supply Yes No Yes No Check the peripheral TUNER102 power supply and BUS Check between the TUNER102 and N801 circuit Yes No Check the peripheral circuit of N801 crystal and power supply Check if the C228 and C229 have the signal input Check if the pin 3 and pin6 of N708 has input signal Check periphery circuit of N201 crystal and power supply Check between the SCART2 socket and N708 circui...

Страница 28: ...t of N201 crystal and power supply Yes No Check if between the pin16 of SCART1 socket and N501 is normal Check if the C223 C224 C225 and C226 have the signal input Between the SCART1 socket and N201 channel has problem Switch RGB and VIDEO input SCART1 check if the PIN87 of N501 is normal Check the connector channel Check the peripheral circuit of N201 crystal and power supply Check the peripheral...

Страница 29: ...e signal input Check between N706 and N201 channel Between the YPBPR socket and N706 channel has problem Check the peripheral circuit of N706 and power supply No Yes Yes No No Yes Check if the T4 and U1 of N201 have sync signal input Check if the YPBPR signal display is normal Check the program YES NO YES NO Check N201 Check if the PIN1 and PIN5 of N201 have sync signal input YES NO Check the peri...

Страница 30: ...e signal input Check the program Check if the pin7 and pin10 of N707 have signal input Check the peripheral circuit of N707 and power supply Check between N601 socket and N707 channel Check if the pin1 4 of N601 have signal input No Yes Yes No No Yes Check the program Check the peripheral circuit of N601 and power supply No Yes ...

Страница 31: ...ll the way from up downward on the screen of stand definition TV set abnormal vertically on half screen of high definition TV set They may be caused by the damage of the address BUFFER module that directly corresponds to its position or may be caused by the damage of the connection wire that directly corresponds to the position of the screen The horizontal bar like abnormality is also related to t...

Страница 32: ...S1 203 PS42W60 13 RC 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 ...

Страница 33: ...603 PS42W6S 00 Ver 1 0 ...

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