background image

7. Troubleshooting

NO

Replace U104

Check  U104

3.3V OK? 

Check and repair the   

Peripheral components 

NO

Replace Q808

Check Q808 C(low voltage?)

Check U201

NO

Update Software

Standby power OK, no 

Power ON signal 

27

Replace U201

NO

Summary of Contents for 22PFL5557/V7

Page 1: ...nts Page LED TV 1 SAFETY PRECAUTION 2 2 SERVICE PROCEDURE 3 SOFTWARE UPGRADE PROCEDURE VOLTAGE CHART 4 6 13 15 32PFL5537 V7 24PFL5557 V7 22PFL5557 V7 32PFL5937 V7 24PFL5957 V7 22PFL5957 V7 32PFL5957 V7 29PFL5937 V7 ...

Page 2: ...ended to alert the user to the presence of uninsulated voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to the person The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance 1 SAFETY PRE...

Page 3: ...onnel 8 Do not subject your television set to impact of any kind Be particularly careful not to damage the picture tube surface 9 Unplug this television set from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning 10 1 Do not place this television set on an unstable cart stand or table The television set may fall causing serious injury to a ...

Page 4: ...pporting structure grounding of the lead in wire to an antenna discharge unit size of grounding conductors location of antenna discharge unit connection to grounding electrode and requirements for the grounding electrode 15 2 Note to CATV system installer Only for the television set with CATV reception This reminder is provided to call the CATV system attention to Article 820 40 of the NEC that pr...

Page 5: ... 21 If you are unable to restorenormal operation by following the detailedprocedurein your operating instructions do not attempt any further adjustment Unplug the set and call your dealer or service technician 22 Whenever the television set is damaged or fails or a distinct change in performance indicates a need for service unplug the set and have it checked by a professional service technician 23...

Page 6: ...r LEFT key to change the values Press Remote Control OK key run the function 6 Item Sub item Value Note MODE 2 2 Factory Menu Definition 1 ˊ ADC ADJUST ADC ADJUST RGB YPbPr SD YPbPr HD Get the signal from the PC is standard definition is high definition Get the signal from the YPbPr and the signal Get the signal from the YPbPr and the signal R GAIN G GAIN B GAIN R OFFSET G OFFSET B OFFSET AUTO ADC...

Page 7: ...INT 0 100 100 Adjust the picture TINT from 0 to 3 ˊ W B ADJUST Item Sub item Value Sub item Note MODE Select the signal from the source TEMPERATURE Normal Warm Cool Personal Select the temperature mode W B ADJUST R GAIN G GAIN B GAIN R OFFSET G OFFSET B OFFSET R White balance G White balance B White balance B White balance R Gray balance G Gray balance B Gray balance 4 ˊ SSC Item Sub item Value Su...

Page 8: ... item Note WHITE PATTERN Power Aging Software Update USB ON OFF OFF White Red Green Blue Black OFF ON Last ON OFF Send out the five pattern picture The PM mode select The factory mode select The switch to close TV after 2 hours Factory Settings OSD Language English ...

Page 9: ...9 ...

Page 10: ...10 ...

Page 11: ...11 ...

Page 12: ...12 ...

Page 13: ...nnect the USB to TV set 5 To enter into FACTORY MENU go to USER MENU 4 Connect the USB to TV set 4 Connect the USB to TV set 6 Go to Software Update USB press OK button of Remote METHOD 2 press the subsequence remote control keys 2 5 8 0 then press left buttom to select update the software 7 After upgrading the software you should Switch on the TV set by the romote control or the key press 4 Press...

Page 14: ... the SW that you want to update as the picture 2 10 select the corresponding SW bin file to upload Picture 2 6 Press Auto and Run button to update the SW as the picture 3 and then wait it finish Picture 3 it is about four minute 14 ...

Page 15: ...t free of any temperature drift colorimetry vs time 1 1 Preconditions DC DC Check Before power on please check the board according to the relevant block diagram and circuit diagram and make sure that no serious error should destroy the board For example the output of DC DC and LDO should not be shorted to ground Supply a suited voltage and power on then check the voltage according to the relevant ...

Page 16: ...inch U702 YD1517 22inch YPBPR INPUT CVBS IN AV IN RGB PC PC AUDIO U401 HDMI SWITCH HDMI U201 Main IC YPBPR USB POWER SUPPLY MEMORY FLASH 32Mbit CRYSTAL Download Software SCL SDA USB 24MHz 5 Block Diagram 5 Block Diagram 5 Block Diagram 5 Block Diagram 5 Block Diagram 5 Block Diagram 5 Block Diagram 5 Block Diagram 5 Block Diagram 5 Block Diagram 5 Block Diagram 16 ...

Page 17: ... 12V 3A 17 POWER Module 3 3V_Standby 12VA 5Vstb AMS1117 ADJ U103 3 3V_Normal 5VA SY8008B D101 1N4001 2 5V_Normal U101 SY8008B 1 32V U105 SY8008B AVDD_DDR L611 5V Tuner 120uH 660mA I2C BUS Flow Diagram SCL SDA SDA U201 MST6M48 HDMI HDMI TUNER I2C BUS TUNER BUS SCL T9 P9 C14 B14 D3 D1 U2 RT8296A 5VA 5Vstb SWITCH VGA D11 D10 ...

Page 18: ...0uF X5R EC121 220uF 16V EC121 220uF 16V R102 113K R102 113K C117 10uF X5R C117 10uF X5R C115 100PF C115 100PF C138 0 1uF C138 0 1uF L107 2 2uH_1 5A L107 2 2uH_1 5A R104 100K R104 100K R124 10K R124 10K C113 0 1uF X7R C113 0 1uF X7R C105 10uF X5R C105 10uF X5R R103 0R 0402 R103 0R 0402 C102 0 1uF X7R C102 0 1uF X7R L105 2 2uH_1 5A L105 2 2uH_1 5A R109 120K R109 120K R123 1K R123 1K EC120 220uF 16V ...

Page 19: ... SOE 10 FLCK3 11 PT EN1 12 GND 13 GND 14 C238 1uF C238 1uF C245 0 1uF C245 0 1uF C220 47nF C220 47nF R247 4 7K R247 4 7K R231 200R R231 200R C244 0 1uF C244 0 1uF C224 47nF C224 47nF C226 47nF C226 47nF R232 4 7K R232 4 7K R206 22K R206 22K R201 1K_1 R201 1K_1 R221 8 2K R221 8 2K C239 1uF C239 1uF C232 10uF X5R C232 10uF X5R C221 47nF C221 47nF 7 5 3 1 8 6 4 2 RP1 22RX4 7 5 3 1 8 6 4 2 RP1 22RX4 R...

Page 20: ...7 27k C311 33pF C311 33pF J306 FILL SCART J306 FILL SCART 2 4 6 8 10 12 14 16 18 20 1 3 5 7 9 11 13 15 17 19 21 24 25 200K R349 200K R349 C301 10P C301 10P 10K R342 10K R342 R324 100R R324 100R R315 100R R315 100R R336 75R R336 75R 4 7k R352 4 7k R352 10K R360 10K R360 2 2uF 0603 C322 2 2uF 0603 C322 FB302 FB 0603 FB302 FB 0603 10K R355 10K R355 Q301 3906 Q301 3906 1 3 2 12K R363 12K R363 2 2uF 06...

Page 21: ...C 12K 8 6 4 2 7 5 3 1 RP406 NC 5 1R 4 8 6 4 2 7 5 3 1 RP406 NC 5 1R 4 C413 0 1uF C413 0 1uF R447 200R R447 200R C417 NC 1uF 0603 C417 NC 1uF 0603 R444 47K R444 47K C420 NC 1uF 0603 C420 NC 1uF 0603 C421 NC 0 1uF C421 NC 0 1uF J402 HDMI_J J402 HDMI_J DATA2 1 DATA2 SHIELD 2 DATA2 3 DATA1 4 DATA1 SHIELD 5 DAT1A 6 DATA0 7 8 DATA0 SHIELD DATA0 9 CLK 10 CLK SHIELD 11 CLK 12 CEC 13 NC 14 SCL 15 SDA 16 DD...

Page 22: ...C 0R J501 VGA J501 VGA 5 10 4 9 3 8 2 7 1 15 14 13 12 11 6 16 17 R10 100K R10 100K R502 33R R502 33R J502 J502 1 2 3 4 5 6 7 8 R501 75R R501 75R R511 10K R511 10K R520 10K R520 10K R516 NC 0R R516 NC 0R R503 33R R503 33R R8 100K R8 100K R507 75R R507 75R R519 10K R519 10K R506 100R R506 100R R6 100K R6 100K R518 NC 0R R518 NC 0R R504 33R R504 33R FB503 FB 0603 FB503 FB 0603 R5 100K R5 100K R508 75...

Page 23: ...R312 51R R315 51R C357 R313 C364 R312 C358 C365 R314 C367 C359 L32 R315 C363 5 14V 100mA closed to tuner FOR SECAM TUNER AGC Close TUNER Tuner C610 180PF C610 180PF C608 20pF C608 20pF C616 0 1uF C616 0 1uF R607 0R R607 0R R603 0R R603 0R C604 NC 56pF C604 NC 56pF C607 20pF C607 20pF C617 NC 56pF C617 NC 56pF L611 120uH 660mA L611 120uH 660mA C606 0 1uF C606 0 1uF R601 100R R601 100R U601 F35WT 3 ...

Page 24: ...702 10K R702 10K EC704 NC 470uF 10V EC704 NC 470uF 10V 1 2 EC705 NC 470uF 10V EC705 NC 470uF 10V 1 2 R716 100R 1206 R716 100R 1206 R735 10K R735 10K Q705 3904 Q705 3904 1 2 3 R728 0R 0402 R728 0R 0402 R723 22K R723 22K D701 BAW70 D701 BAW70 1 2 3 U701 PT2308P U701 PT2308P IN1 3 IN2 6 OUT1 1 IN1 2 VDD 8 GND 4 IN2 5 OUT2 7 SRQ3 2pin SRQ3 2pin 1 2 L704 33uH 1 5A L704 33uH 1 5A R725 10K R725 10K R710 ...

Page 25: ...5 GATE 6 FB 2 R896 1R2 1206 R896 1R2 1206 R328 10k R328 10k C41 10uF 1206 C41 10uF 1206 CY800 CY800 C1040 0 1uF 0603 C1040 0 1uF 0603 D811 NC FR107 D811 NC FR107 R870 100K R870 100K EC31 470uF 16V EC31 470uF 16V R36 5 6K1 R36 5 6K1 F800 F800 CN801 SWITCH CN801 SWITCH 1 2 TP4 TP4 J3 J3 1 2 C23 101 50V 0603 C23 101 50V 0603 R899 36K 0603 R899 36K 0603 R869 47R 1206 R869 47R 1206 S1 S1 J7 FOR_CPT J7 ...

Page 26: ...10K CON810 FOR 一体机 CON810 FOR 一体机 1 2 3 4 5 6 R848 NC R848 NC R832 10K R832 10K R828 8 2K R828 8 2K R844 NC 20K R844 NC 20K R860 NC 1R 1206 R860 NC 1R 1206 R856 NC 1R 1206 R856 NC 1R 1206 R15 4 7K R15 4 7K C2 220uF 60V C2 220uF 60V R850 NC 100R 0603 R850 NC 100R 0603 C750 NC 100pF C750 NC 100pF L807 47uH 3 8A L807 47uH 3 8A U5 AP3039A U5 AP3039A OV 2 UVLO 1 EN 3 PGND 7 VIN 4 VCC 5 OUT 6 RT 8 CS 9 ...

Page 27: ...hooting NO Replace U104 Check U104 3 3V OK Check and repair the Peripheral components NO Replace Q808 Check Q808 C low voltage Check U201 NO Update Software Standby power OK no Power ON signal 27 Replace U201 NO ...

Page 28: ...ower OKˈ no backlightˈ no raster Check Q7 C high voltage NO Check Q6 C high voltage Replace Q6 NO Check Q106 C high voltage Replace Q106 NO 39 Check and repair the CN201 Pin3 5V or 12V Replace Q110 NO Check Q110 28 ...

Page 29: ...Power OKˈbacklight OK no raster Replace LVDS cable or T CON board Check the voltage of LVDS signal 29 Check Q110 C high voltage Replace Q110 NO Pin3 5V or 12V Replace Q101 NO Check Q101 ...

Page 30: ...01 or main board Replace T CON board cable NO Check Q101 OK Check the T CON board OK AV no picture VGA no picture Check R512 and R514 VGA no picture replace NO Check Q402 and Q403 OK HDMI1 HDMI2 no picture replace NO USB no picture Check FS301 OK replace NO Check circuit from AV to U201 replace NO 30 ...

Page 31: ...ck the components from TUNER1 to U201 TV no picture pin_10 and 11 Replace L611 NO NO Replace TUNER1 Replace U201 NO Check TUNER1 pin_5 is 5V 31 Check TUNER1 Have Connect The Antenna Connect the Antenna NO ...

Page 32: ...NO NO NO Check C701 and C709 ok OK Replace R706 NO Check speaker cables or speaker NO 32 Replace R701 or R712 Replace C701 or C709 Check U701 pin8 5V Check C705 C707 C715 and C730 Replace C705 C707 C715 or C730 Check EC704 and EC705 Replace EC704 or EC705 ...

Page 33: ...8 PCB Layout TOP 33 ...

Page 34: ...BUTTOM 34 ...

Page 35: ...roduction Key Press Board Main Board Speaker LVDS Cable Speaker T CON Board Receive Board CN202 TO IR Key Board J303 AV IN J302 USB J304 Headphone J305 AV OUT J401 HDMI2 J402 HDMI1 J301 YPBPR J501 PC VGA J502 PC audio TUNER RF CN201 to LVDS cable CN701 TO Speaker CN804 to LED 35 ...

Page 36: ...n board IC introduction U202 FLASH U2 12VA to 5VA U3 LED control IC Y1 Crystal U101 5VA to 1 32V U105 5VA to 1 8V U702 AMP YD1517 U104 5Vstb to 3 3Vstb U401 HDMI switch U201 6M182 U701 AMP PT2308 U103 5VA to 3 3V 36 ...

Page 37: ...d Main Board Speaker LVDS Cable Speaker T CON Board Receive Board CN202 TO IR Key Board J307 AV IN J302 USB J304 Headphone J308 AV OUT J401 HDMI2 J402 HDMI1 J301 YPBPR J501 PC VGA J502 PC audio TUNER RF CN201 to LVDS cable CN806 to LED Backlight CN701 TO Speaker CN804 to LED Backlight 37 ...

Page 38: ...C introduction U202 FLASH U2 12VA to 5VA U3 LED control IC Y1 Crystal U101 5VA to 1 32V U105 5VA to 1 8V U702 AMP YD1517 U104 5Vstb to 3 3Vstb U401 HDMI switch U201 6M182 U701 AMP PT2308 U103 5VA to 3 3V U3 LED control IC 38 ...

Reviews: