Philips 22PFL5237A/V7 Service Manual Download Page 56 | Manualshive

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background image

Check input signal

and connection

Check OSD

selection

Check tuner

Abnormal

Normal

Connect

properly

Select as

per signal

source

Normal

Abnormal

Check voltage 5V on

TUNER PIN

Check 12V at

XS504 and 5V on

output of N701

Replace main board

Normal

Conditions

NG on RF

NG on A/V

Check related parts
& track of A/V
section

Abnormal

Abnormal

Normal

Normal

57

J) No Signal - AV and RF

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Summary of Contents for 22PFL5237A/V7

Page 1: ...Electronics N V and are used under license from Koninklijke Philips Electronics N V 3 SOFTWARE UPGRADE 4 BLOCK DIAGRAM 5 ABBREVATIONS 6 8 CIRCUIT DIAGRAM 1 TROUBLESHOOTING LCD TV 2 6 13 21 41 CONNECTORS IC DETAILS 9 48 59 27 32PFL5237A V7 24PFL5237A V7 32PFL5637A V7 24PFL5637A V7 32PFL3057 V7 24PFL3457 V7 42PFL3457 V7 7 PANEL VCC SELECTION 46 32PFL5657A V7 22PFL5237A V7 ...

Page 2: ...nsulated 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 Precaution Use of controls adjustments or procedu...

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: ...d USB support image audio video playing AV output is available 2 Design Menu 1 Methods of Entering Full HD panel and HD panel can be compatible The signal sources include TV AV YPBPR Using the remote Go to the Menu in the OSD and Press 1 9 5 0 keys on Remote In Design Menu below Sub Menus are present 6 too The whole process of alignment includes ADC calibration ...

Page 7: ...te balance data for Different panels in different sources Temperature R_Gain G_Gain B_Gain R_Cut G_Cut B_Cut SUB Brightness SUB Contrast WB OFFSET MODE Temperature These parameters are used to adjust the OFFSET values of WB data In RF normal v alues are set directly and other color temp are adjusted with FFSET values R_Gain Offset G_Gain Offset B_Gain Offset R_Cut Offset G_Cut Offset B_Cut Offset ...

Page 8: ...COLOR SHARPNESS HUE ADC ADJUST SOURCE R_Gain The calibration is used in YPbPr and VGA sources to set the color and resolution of these sources G_Gain B_Gain R_Cut G_Cut B_Cut Auto ADC Note Video settings for Different AV source may be different depending on measurements This parameter used for automatic gain control The REVERSE function used to reverse the picture Not applicable 8 ...

Page 9: ...SD_25 OSD_50 OSD_75 OSD_100 Bass OSD_0 This is curve for TREBLE The Treble is same for all sources OSD_25 OSD_50 OSD_75 OSD_100 BAND MAX 120Hz These are the Gains settings for different equalizer settings 500Hz 1 5KHz 5KHz 10KHz SMART Smart Sound Treble These are the settings used for different Audio modes and the same will be displayed in User Menu Bass 120Hz 500Hz 1 5KHz 5KHz 10KHz AUDIO ADJUSTM...

Page 10: ...r e adjusted Audio settings will be enabled SRS OFF NA SRS Setting NA Select Audio 2 0 NA On Music VoL 10 This is level setting for set start ON Music Volume Level Note Audio settings for Different AV source audio modes may be different depending on measurements Enable surround effects for stereo sources Depending On Model Incredible Surround 10 ...

Page 11: ...ly Power Status Off This is for Status of set after Power OFF i e if made on set will go to St by mode or will become ON or Last status before poewr off Boot Logo PHILIPS This is Boot logo selection Panel Control Panel Type Panel Data settings Lvds Mapping Design Set DC PWM setting Back light Way Back Light Curve Backlight curve 5 point Source Switch TV This is for Source selection as per model sp...

Page 12: ...Mode Icon Num POS 1 POS 2 POS 3 POS 4 POS 5 POS 6 POS 7 POS 8 POS 9 POS 10 POS 11 CEC Function CEC feature ON OFF selection Hotel Mode Hotel mode feature ON OFF selection Timer Menu Timer menu feature ON OFF selection Blue Back Black Back feature ON OFF selection Shipping If selected Shipping then all changes made in User menu and all parameters get changed to Factory settings for that model Sw Ve...

Page 13: ...W bin File as PHILIPS bin C Keep the set in Mains Power OFF condition D Plug in the USB drive In USB port of E Now Plug in the Mains Power of LCD F The RED LED indicator will glow G After 2 3 Sec the LED will Start Blinking H After few Seconds the LED blinking will stop and set will be released from Stand by i e will become ON C SW loading with M STAR tool 13 3 Software Upgrade Procedure SW instal...

Page 14: ... EEPROM the set will go to stand by and will again restart automatically in RF source L Then verify the modelwise Audio Video settings as per Design data Verify the SW date and version in Version info menu of Design data M Then press Shipping in Setup design menu by pressing OK key of remote then Switch OFF and again Switch ON the SET The SW loading process Is complete 14 ...

Page 15: ... In USB port of LCD E F Then a Pop up window will appear on screen Press left navigation key of remote or VOL key of TV front key panel for SW update Or press Right navigation key of remote or Vol key of TV front Key panel to cancel SW update G If select YES then the SW loading will start The SW loading progress will display on screen Press Menu key then select SETUP FEATURES SOFTWARE UPDATE then ...

Page 16: ...go to stand by and will again restart automatically in RF source L Then verify the modelwise Audio Video settings as per Design data Verify the SW date and version in Version info menu of Design data M Then press Shipping in Setup design menu by pressing OK key of remote then Switch OFF and again Switch ON the SET The SW loading process Is complete The set is in M Node now Then go to Design Menu b...

Page 17: ... C SW installation by MSTAR TOOL 1 Firstly need Connector with the Update Jips with PC and Chassis Connect the Jips to port XS352 of chassis as shown in above fig 17 2 Open ISP_tool_4502 exe ...

Page 18: ...IN file to upgrade SW 7 After selecting the BIN file Press then Press Button Then the software will be upgraded as shown in image 18 Then below window will display Then press Connect Button Then press Read button as shown in below image ...

Page 19: ...9 After successful software loding Mains On Off the TV SET 8 Update is finished and it is OK then following information will be displayed 19 ...

Page 20: ...and will again restart automatically in RF source D Then verify the modelwise Audio Video settings as per Design data Verify the SW date and version in Version info menu of Design data E Then press Shipping in Setup design menu by pressing OK key of remote then Switch OFF and again Switch ON the SET The SW loading process Is complete Step to refer after software installation 20 ...

Page 21: ...n IC 2 Power management of LDO voltage output following a N452 output volt 3 3VSTB 0 1V b N454 output volt 2 5V 0 1V c N451 output volt 1 25V 0 1V 3 Tuning circuit of tuner type is HFT2 8C T116V The colour system PAL SECAM and sound system BG I DK 4 N901 TDA7491 is the Digital audio amplifier Output power option 2x10W stereo 5 N602 MX25L3205DM21 is the FLASH IC for software storage and operation d...

Page 22: ...H N602 DIGITAL AMP N901 SPEAKER RF TUNER A702 AV OUT XS331 AV2 IN XS382 AV1 IN XS381 YPbPr IN XS2 VGA IN XS351 VGA AUDIO XS104 HDMI IN XS001 USB IN XS391 LVDS OUT XS401 POWER XS501 IR KEY CONN XS605 1 For 1 HDMI Chassis 23 ...

Page 23: ... 1366x768 60Hz 1440x900 60Hz 1920x1080 60Hz 1 For 3 HDMI Chassis 2 For 1 HDMI Chassis 24 CVBS IN 2 CVBS OUT 1 YES LVDS Tx Dual LVDS 10 bits 2 Two channel LVDS Tx Parallel Serial Flash I F Serial Audio DAC 2 DAC L R Audio I2S CVBS VGA YBPPR YPBPR 1 VGA 1 HDMI Rx 1 ch HDMI 1 3 USB HOST Max 1 ch w o Hub MT8223L Feature 1366x768 60Hz 1440x900 60Hz 1920x1080 60Hz CVBS IN 2 CVBS OUT 1 YES B IC SPECIFICA...

Page 24: ...ON MST6M182VG Y401 CRYSTAL LVDS SOCKET F AC INPUT 110V 240V POWER SUPPLY INVERTER LVDS SOCKET LCD PANEL N901 TDA7491P Touchpad Power Connector XS901 XS605 1 Wiring diagram for 3 HDMI Chassis FFC HEADER 25 C WIRING DIAGRAM ...

Page 25: ...401 MICON MST6M182VG Y401 CRYSTAL L VDS SOCKET FR AC INPUT 110V 240V POWER SUPPLY INVERTER LVDS SOCKET LCD PANEL N901 TDA7491P Touchpad Power Connector XS901 XS605 1 Wiring diagram for 1 HDMI Chassis FFC HEADER 26 ...

Page 26: ...022uF D701 LL4148 R731 4 7K C733 0 1u 50V C731 1uF 25V C735 10uF 50v L731 1000uH B E C V731 BC847 1 2 VD731 Z33V R732 100 R703 4 7K R704 4 7K R132 100K R158 1K C736 10uF 50v 1 NC 3 33V 4 AS 5 SDA 6 SCL 7 5VB 9 IF_OUT2 14 GND1 15 GND4 16 GND5 2 RF AGC 8 NC 10 IF_OUT1 11 NC 12 NC 13 GND3 A702 TUNER_IF_0 E WORK DATAMARIA10V100MST760VS 20100701 DSN HFT2 8C T116CW 2 3 1 N701 7805 L731A 1000uH R701 51 R...

Page 27: ...AL O 18 XTAL I 19 VDD H 20 VDD H 21 RF SHLD 22 RF IN 23 RF IP 24 RF SHLD 25 GND 26 GND 27 GND 28 GPI01 29 INTB GPI02 30 RSTB 31 GND 32 VDD IO SI2136 E ÕÅÃ ÁúWORKFILESPCBLAYOUT2009MT8222_XS P Ö åZB_AXS_MT8222 12 23 DSN R772 0R D762 1N4148 C782 1 2nF C789 1200pF C779 1200pF C785 1200pF C766 1 2nF C767 4700pF C764 0 1uF 1 4 2 3 T761 C765 0 1uF R768 0R R761 0R R767 0R R790 5 1R R791 5 1R 1 2 L761 LD05...

Page 28: ... R388 68 C386 0 047U R303 75 1 2 D382 DIODE_BI DIR_TRIG_3 NC R390 12K R38910K C387 1u R392 12K R39110K C388 1u 3 L 2 GND 1 1 5 VIN 4 R 6 6 XS382 PHONE 2 HX_17 E MTK8223PCBMT8223L 20100426 T2 SCH B DSN 3 L 2 GND 1 1 5 VIN 4 R 6 6 XS002 PHONE 2 HX_17 E MTK8223PCBMT8223L 20100426 T2 SCH B DSN 1 2 3 4 5 6 7 8 9 XS381 1 2 D011 DIODE_BI DIR_TRIG_3 NC 1 2 D012 DIODE_BI DIR_TRIG_3 NC 1 2 D013 DIODE_BI DIR...

Page 29: ...36810K C357 1u R367 12K 1 2 D355 DIODE_BI DIR_TRIG_3 NC 1 2 D354 DIODE_BI DIR_TRIG_3 NC 1 2 D353DIODE_BI DIR_TRIG_3 NC 1 2 D352 DIODE_BI DIR_TRIG_3 NC 1 2 D351DIODE_BI DIR_TRIG_3 NC R355 4 7K R356 4 7K 1 2 3 4 XS352 CON04 2 0 R357 68 R358 68 R365 33 C355 0 047U R370 33 3 L 2 GND 1 1 5 VIN 4 R 6 6 XS104 PHONE 2 HX_17 E MTK8223PCBMT8223L 20100426 T2 SCH B DSN 1 2 D015 DIODE_BI DIR_TRIG_3 NC 1 2 D016...

Page 30: ...C V331 BC847 B E C V332 BC857 R333 330 R334 150 R335 200 R336 75 C336 0 1u R339 47 R340 47 R341 100K R342 100K C334 180PF C335 180PF 3 L 2 GND 1 1 5 VIN 4 R 6 6 XS331 PHONE 2 HX_17 E MTK8223PCBMT8223L 20100426 T2 SCH B DSN AV_L_R_PJ_LAN HEADPHONE_LAN 1 2 D017 DIODE_BI DIR_TRIG_3 NC 1 2 D018 DIODE_BI DIR_TRIG_3 NC 1 2 D019DIODE_BI DIR_TRIG_3 NC C337 20pF AV_A_LOUT AV_A_ROUT GND AV_OUT 5V AV_VOUT AV...

Page 31: ...DE_BI DIR_TRIG_3 NC 1 2 D027DIODE_BI DIR_TRIG_3 NC R040 NC 0 R041 NC 0 1 2 3 4 8 7 6 5 RN403 RESAR_IS_4 SM 47 OHM 1 16W 1 2 3 4 8 7 6 5 RN404 RESAR_IS_4 SM 47 OHM 1 16W R015 4 7K NC 1 NC 2 NC 3 NC 4 GND 5 SDA 6 SCL 7 WP 8 VCC N003 24C02 C009 0 1u R002 4 7K NC 1 NC 2 NC 3 NC 4 GND 5 SDA 6 SCL 7 WP 8 VCC N004 24C02 C012 0 1u R005 4 7K NC 1 NC 2 NC 3 NC 4 GND 5 SDA 6 SCL 7 WP 8 VCC N005 24C02 C013 0 ...

Page 32: ...7K R508 0 NC R509 4 7K B E C V501 NC BC847 C501 0 1u C502 470uf VD501 NC TVR4J R512 10K C507 0 1u G S D V506 R510 4 7K C504 0 1u R515 10K 1 S 2 S 3 S 4 G 5 D 6 D 7 D 8 D N502 NC AO4405 J506 nc J507 nc 1 2 3 4 5 6 7 8 9 10 11 12 13 14 XS504 COW14 CON14_2 0 2 C500 0 1u C506 47uF C509 10u R505 10K R517 NC 1K B E C V505 NC BC847 R519 4 7K R518 1K 1 2 JP002 JUMPER2 1 2 3 4 5 6 7 XS607 CON07 2 0 R522 68...

Page 33: ... 100uF 16V 1 2 3 4 N452 AMS1084 3 3 ADJ L402 FB C456 0 1u C490 0 1u C493 0 1u C492 470uF 16V 1 2 3 4 N454 AMS1084 3 3 ADJ R453 100 R452 100 1 2 R125 R0603E 56K 1 2 R451 R0603E 47K C432 0 1uF 16V C437 0 1uF 16V C436 470uF 16V 1 2 L403 LD05_3 4 7uH 1 2 R126 R0603E 100K C488 2 2U C257 0 1u C258 0 1u L202 FB C259 2 2U L411 FB C442 0 1u L418 FB 1 FB 2 NC 3 NC 4 GND 8 EN 7 IN 6 LX 5 BS N451 N_SY8132 1 2...

Page 34: ...R_DA GPIO64 E14 GPIO14 TCON14 SCAN_BLK_42 D16 GPIO12 TCON12 DPM_40 J16 GPIO6 TCON6 FLK_34 L14 GPIO7 TCON7 FLK2_35 H15 GPIO5 TCON5 SOE_33 J15 GPIO4 TCON4 GCLK3_32 H14 GPIO1 TCON1 VST_29 E15 GPIO0 TCON0 POL_28 A15 USB0_DM C13 TESTPIN A14 USB0_DP A13 USB1_DM B13 USB1_DP C15 SCK D13 GND_EFUSE C16 SDI B11 SAR0_GPIO11 GPIO75 D10 DDCA_CK D11 DDCA_DA B12 PWM0_GPIO20 GPIO26 C12 PWM1_GPIO21 GPIO25 D12 PMGPI...

Page 35: ...1 0 1u C610 0 1u R620 1K R603 68 R601 4 7K R610 4 7K R611 4 7K R607 1K B E C V602 BC847 C606 0 1u R61368 C607 20PF R612 4 7K R606 1K R602 10K R604 4 7K C603 0 1pF R625 68 R626 4 7K C601 0 1pF 1 2 3 4 5 6 7 8 XS605 CON08 2 0 R632 1K B E C V603 BC847 R633 1K R631 4 7K 3 3VSTB SPI_DI SPI_CK SPI_WP0N 3 3VSTB 5VSTB LED_CTR 5VSTB LED_R IR SPI_CZ 3 3VSTB KEY0 KEY1 KEYA KEYB KEYA LED_R 5VSTB LED_G IR KEYB...

Page 36: ...V 1 2 F592 1 1A R592 5 1 R591 5 1 1 2 D593 DIODE_BI DIR_TRIG_3 NC 1 2 D594 DIODE_BI DIR_TRIG_3 NC L592 FB 1 2 D591 DIODE_BI DIR_TRIG_3 NC 1 2 D592 DIODE_BI DIR_TRIG_3 NC R596 5 1 R595 5 1 USB USB 4 GND 3 USB1 2 USB1 1 5V 5 5V 6 USB2 7 USB2 8 GND XS591 C593 0 1u 1 2 F591 1 1A L591 FB 5V 5V_USB2 GND D2 D2 5V_USB2 USB2_D USB2_D 5V_USB2 5V_USB USB0_DP USB0_DM USB_D USB_D USB_D USB_D 5V 5V_USB ...

Page 37: ... 22 23 24 25 26 27 28 29 30 XS404 Panel30_2 0 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 XS405 Panel30_2 0 2 VCC PANEL RXO0 R2 RXO0 R3 RXO1 R0 RXO1 R1 RXO2 G6 RXO2 G7 RXOC G4 RXOC G5 RXO3 G2 RXO3 G3 RXE0 G0 RXE0 G1 RXE1 B6 RXE1 B7 RXE2 B4 RXE2 B5 RXEC B2 RXEC B3 RXE3 B0 RXE3 B1 3 3VSTB TI_SEL SEL VCC PANEL SEL RXOC G4 RXOC G5 RXO2 G6 RXO2 G7 RXO1 R0 RXO1 R1 ...

Page 38: ... GAIN1 32 INPB 33 INNB 34 VREF 35 SVCC 36 VSS 37 PGNDA N901 STA335_5 R903 33K R901 22 C912 1000pF C908 0 033u 16v C913 1u R904 39K C914 0 1uF C915 0 1uF 16V R905 47K C916 0 1uF C917 1u C918 1u C919 1u R906 10K R907 NC R908 NC R909 100 C902 0 033u 16v C920 1000pF C9210 1uF 16V C922 0 1uF 16V C910 330pF C923 0 22uF 50V C905 0 1uF 50V C909 0 1uF 50V 1 2 3 4 XS901 CON04 2 0 C924 NC 50V C925 0 1uF 16V ...

Page 39: ...11 2 0 2 S1A 5 S1B 11 S1C 14 S1D 3 S2A 6 S2B 10 S2C 13 S2D 1 IN 4 DA 7 DB 9 DC 12 DD 16 VCC 8 GND 15 EN N301 P15V330 C392 0 1U R320 33 R319 33 R318 33 C312 0 047U C316 0 047U C317 0 047U C315 0 001U R322 33 R321 68 C318 0 047U R311 68 R312 4 7K R345 NC 0 R344 NC 0 R343 NC 0 IDTV_LIN IDTV_RIN ID_LIN ID_RIN IDTV_SCL IDTV_SDA IDTV_RIN IDTV_LIN TUNER_SCL TUNER_SDA IDTV_SDA IDTV_SCL HD1_PB HD1_PR HD1_Y...

Page 40: ...5VSTB 5V STAND BY SUPPLY 5 7 LED 8 IR IR SIGNAL TO MICON 3 92 IR Key Board Connector XS605 G 0 5 2 41 3 92 POWER CONN VOLTAGES XS504 SR NO Pin Connection STAND BY V ON Condition V 1 12V 0 12 2 12V 0 12 3 GND 0 0 4 12V 0 12 5 GND 0 0 6 GND 0 0 7 5V 0 5 8 5V 0 5 9 5VSB 5 5 10 GND 0 0 11 STB 0 4 21 12 GND 0 0 13 BLON 0 4 604 14 ADJ 0 5 07 41 6 Connectors IC Details A CONNNECTOR DETAILS ...

Page 41: ...AUDIO OUTPUT CONN XS901 NO Symbol Function 1 L_OUT L_OUT 2 GND GND 3 GND GND 4 R_OUT R_OUT Audio Connector Configuration 42 ...

Page 42: ...2 Vpp 3 3v 13 GND 0V 14 GND 0V 15 RX0C Vpp 3 3v 16 RX0C Vpp 3 3v 17 RX03 Vpp 3 3v 18 RX03 Vpp 3 3v 19 NC Vpp 3 3v 20 NC Vpp 3 3v 21 RXE0 Vpp 3 3v 22 RXE0 Vpp 3 3v 23 RXE1 Vpp 3 3v 24 RXE1 Vpp 3 3v 25 GND 0V 26 GND 0V 27 RXE2 Vpp 3 3v 28 RXE2 Vpp 3 3v 29 RXEC Vpp 3 3v 30 RXEC Vpp 3 3v 31 GND 0V 32 GND 0V 33 RXE3 Vpp 3 3v 34 RXE3 Vpp 3 3v 35 NC Vpp 3 3v 36 NC Vpp 3 3v 37 SEL 3 3V 38 T1_SEL 3 3V 39 N...

Page 43: ...IC CHIP TO252 3 7805 AZ7805 1 N701 LDO TUNER POWER 5V 1100077439 IC Regulator SY8132 DC to DC 2A MST182 1 N451 LDO IC DDR 5V TO 1 26V Micon Core Supply 1100047970 IC CHIP SOT223 G1117 3 3V 1 N452 LDO IC STAND BY VTG 5VSTB TO 3 3V 1100078552 1 JP001 FHD panel selection jumper 1100087737 1 JP003 12V PANEL SELECTION JUMPER 1100041520 IC CHIP TO 252 LM1117DTX ADJ 1 N454 2 5V SUPPLY REGULATOR Jumper 2 ...

Page 44: ...H SIGNAL Voltage changes according to freq and Signal Strength 1 AGC 2V 2 BT_30 32 48 3 AS 0 4 SDA 5 5 SCL 5 6 5VA 5 7 BT_TEST 6 9 8 DIF OUT2 0 9 DIF OUT1 0 N452 Pin No Pin Label Standby V On Condition V IC Function 1 ADJ GND 0 0 3 3V LDO 2 OUT 3 3 3 3 3 IN 5 5 N701 Pin No Pin Label Standby V On Condition V IC Function 1 IN 0 12 Tuner Power 5V 2 OUT 0 5 3 ADJ GND 0 0 45 Flash IC TUNER C CRITICAL I...

Page 45: ... Provision to connect a Jumper is given at location JP003 1 For 22 24 5V panel Add jumper at location JP003 2 For 32 12V Panel as shown in fig below Add jumper at location JP003 as shown in fig below 46 7 Panel VCC Selection ...

Page 46: ...id from location JP001 screen size Panel Type Panel Supply HD FHD Selection AUO_T240XW01_V1 5V HD AUO_T240XVN02 0 5V HD 24 LED M240HW01VD 5V FHD LG_LC320WXN_SCB1 12V HD AUO_T315XW04_V3 12V HD SS_LTA320AP05 12V HD SAM_LTA320HM02 12V FHD AUO_T315HW04_VD 12V FHD AUO_T315XW06_V6 12V HD AUOT320XWN 1 4 12V HD 42 LED FHD_AUO_T420HW08_V9 12V FHD 24 LCD 32 LED 32 LCD 47 1 Power board is high voltage don t ...

Page 47: ... chassis If still abnormal then Mains PSU Problem Then check regulator voltage N451 1 26V N452 3 3V Check all working Voltages are coming at micon STAR182VG Flash IC N602 Checkthe Flash SW loading is If all the working conditions are normal but still can not power ON the set then please try to change the Main Chassis A DEAD or STAND BY normal Check if 5V Supply from PSU is normal Abnormal Abnormal...

Page 48: ...upply voltage at XS504 5V on pin no 7 8 12V on pin no 1 2 4 Check backlight signals On bright 5V on TP 105 TP 106 Check 5V supply at LVDS connector Pin no 1 2 4 of XS401 Abnormal Normal Connect properly Check power supply Normal Abnormal Normal Main board faulty Panel Problem Abnormal 49 ...

Page 49: ...gnals in RF and A V Change main board Abnormal Normal Reconnection Re solder Change speaker Check 12V supply at pin no 1 2 of XS504 Check Power supply Normal Normal Abnormal Normal Abnormal Check A V Section if no sound on A V Change Main Board Check RF Section if no sound on RF Abnormal 50 ...

Page 50: ...lse on IR out Abnormal Normal Change battery Check voltage 5VSB at PIN 9 of XS504 Check Power supply conn and power supply Normal Normal Abnormal Abnormal Check remote selection in Design data Check Remote board Change Remote Abnormal Abnormal Change data as per make spec Abnormal 51 ...

Page 51: ...nal and connection Check Source selection in main menu Check voltage 5V on R016 R014 R006 Abnormal Normal Correct signal and connection Change selection and check Normal Normal Abnormal Check related I P tracks Change main board Normal 52 ...

Page 52: ...selection in main menu Check 5V supply on Abnormal Normal Change cable and correct connection Change selection and check Normal Normal Abnormal Change main board Check input signal Resolution frequency Change resolution frequency as per model spec Abnormal 53 VD501 ...

Page 53: ... pin no 7 8 of XS504 LED Status Red Check stand by voltage 3 4V at pin no 9 of XS504 Check flash IC Connect USB with SW file and Switch On the set Check regulator voltage IC No Voltage N451 1 26V N452 3 3V Replace defective part Abnormal Abnormal Normal LED blinking starts and SW gets loaded Abnormal Abnormal Replace the Main 54 ...

Page 54: ...ectors Check power supply 12V filter Abnormal Normal Connect properly Remove and reconnect Normal Normal Abnormal Check back light adjust voltage 5V at pin no 14 of XS504 Replace main board Abnormal Panel faulty Change panel Check power supply Abnormal Normal 55 ...

Page 55: ...I No Chanel Search Check input RF signal and connection Check 5V supply on tuner Change Tuner Abnormal Normal Connect properly Check IC N701 and replace Normal Abnormal 56 ...

Page 56: ...nnect properly Select as per signal source Normal Abnormal Check voltage 5V on TUNER PIN Check 12V at XS504 and 5V on output of N701 Replace main board Normal Conditions NG on RF NG on A V Check related parts track of A V section Abnormal Abnormal Normal Normal 57 J No Signal AV and RF ...

Page 57: ...tion Check tuner type in SVC data Check input signal level through db meter Abnormal Normal Connect properly Select correct tuner as per PCB Normal Abnormal Ask to customer to correct input signal strength from local distribution center Abnormal 58 ...

Page 58: ...phics Array SVGA Super Video Graphics Array X VGA Extended Video Graphics Array W XGA Wide Extended Graphics Array DAC Digital to Analog Converter ADC Analog to Digital Converter USB Universal Serial Bus HDMI High Defination Multimedia Interface CVBS Composite Video Baseband Signal LVDS Low Voltage Differantial Signal EEPROM Electrically Erasable Programmable Read Only Memory DDR Dual Data Rate Me...

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