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1. Cable not well connected or Main Switch Faulty Fuse PSU1 No ok No Yes PSU faulty Change Fuse No No PSU output Check CN101 PSU 1 and 2 220 110 V Yes Check Pin 11 CN04 of PSUI 5V Check Pin 12 CN04 on PSUI 0V Display Yes Image OSD lamps ON present No No CONTINUE IN CONTINUE IN THE NEXT PAGE THE NEXT PAGE B Check Pin 12 CN04 on PSU OV Yes Check Pin 12 CN04 on PSU OV Local Keyboard Faulty Check Cable Local Keyboard IR from CN6 Main Board FIG 4 A No Connect Change Cable NOTE PSU 1 MASTER PSU PSU 2 SLAVE PSU Service manual Chagall2 Generation rev 0 LCD 527 57 CHECK DIAGRAM N N CONTINUE CONTINUE Check Digital FROM THE FROM THE Cable from J5 Main PREVIOUS PAGE PREVIOUS PAGE Board to LVDS A _ connector panel Check CN05 or CN06 on PSU 1 Voltages No OK CN06 on PSU 2 panel OK Faulty No Voltages OK PSU 1 faulty PSU 2 faulty Disconnect cable from CN05 CN06 of PSU 2 Check CN05 and CN06 on PSU 2 TROUBLESHOOTING FOR DIFFERENT FAULTIES The previous Check Diagram is useful for the main faulties panel lamps off noimage with panel lamps on stand by status and no power on switch on and switch off in loop Many other faulties can be present but not included in the previous analysis In this section wil
2. 5 VBL Power Supply 24 0V VBL VBL 6 GND BackightGround GND GND 7 GND Backlight Ground GND GND 8 GND Backlight Ground GND GND 9 GND Backight Ground GND GND 10 GND Backlight Ground GND GND 11 VBR A E a 65V VBR A Don t care 2 3 12 VON OFF 0 0V 5 0V On Off Don t care 13 Ver B ie oe VBR 8 3 Normal Upper 3 0V Abnormal Under 0 7V Status Notes 1 GND should be connected to the LCD module s metal frame 2 If Pin 11 is open VBR A 1 65V When apply over 1 65V 3 3V continuously its luminance is increasing however lamp s life time is decreasing could be usable for boost up luminance when using DCR Dynamic contrast ratio function only 3 Minimum Brightness VBR B 0V Maximum Brightness VBR B 3 3V 4 Even though Pin 14 is open there is no effect on inverter operating The output terminal of inverter 5 Each impedance of pin 11 12 and 13 is 112 M2 co M2 112 M2 For the Master connector 14 pins are used Pin 12 and Pin 13 while Pin 11 and Pin 14 are not connected In the next page there is a picture of LCD 42 version and it is possible to see the inverter modules connections with PSU board Service manual Chagall2 Generation rev 0 ITI lt LCD 42 INVERTER MODULES PIN OUT BOARD LIST A Main Board Chagall2 B Sub Board Chagall2 C EMI Filter D DVBT Module E Power Sup
3. Display Yes Image OSD lamps ON present No No CONTINUE IN CONTINUE IN THE NEXT PAGE THE NEXT PAGE _ A _ p Service manual Chagall2 Generation rev 0 33 CONTINUE CONTINUE Check Digital FROM THE FROM THE Cable from J5 Main PREVIOUS PAGE PREVIOUS PAGE Board to LVDS _ A _ p connector panel Check CN401 or Change CN400 on PSU LVDS Cable Voltages OK Disconnect cable from Check CN401 Main Board ref To inverter CN400 or CN401 or CN400 on Faulty or pin out PSU Panel Faulty Voltages OK ref To inverter pin out Inverter panel Faulty PSU faulty TROUBLESHOOTING FOR DIFFERENT FAULTIES The previous Check Diagram is useful for the main faulties panel lamps off with panel lamps on stand by status and no power on switch on and switch off in loop Many other faulties can be present but not included in the previous analysis In this section will be described the most common list of problems to find where the faulty is located For every other faulties not present in the next list it will be necessary to contact the Service Center NO AUDIO NOTE Before to start in analysis check the audio cable to be sure they are ok Connect Audio from Select INPUT Audio switch in the source to the matching with audio INTERNAL position monitor refer to user source used refer to user manual manual Volume 0 and MUTE OFF use Audi
4. Faulty page B2 Faulty Service manual Chagall2 Generation rev 0 LCD 32 AUDIO FAULT Y 3 5 CONTINUE from the Problem in previous TV page B2 CONTINUE from the Check Digital previous Cable page 2 Main Board Faulty Digital cable OK Sub Board Faulty Digital Cable Display Faulty Faulty FACTORY TEST To activate this factory menu it is necessary to use the next procedure 1 VOLUME to 0 2 Push sequence the next 4 keys in less of 5 seconds a Picture b Menu c Sound d Sleep 3 It will appear a menu with HEATRUN function to launch internal test pattern Using internal test pattern the image is not decoded by a external source and in this case if some problem is present in output the problem is not of the digital board but it can be digital cable or LCD plasma panel TV INPUT PROBLEMS If monitor does not receive any channel it could be one of the next situations Cable is not connected TV settings are not correct for the country standard Wall connector or cable connector has not a good ground contact Internal wire of the cable antenna is damaged In one of the previous situations it will not work DTV input too because the signal is the same for TV tuner and DVB T tuner After the previous checks are made the only possible faulty can be Sub Board If no channel is stored during tuning Main Board Faulty If strong noise is many inputs c
5. HANTAREX ELECTRONIC SYSTEMS FE SAFETY PRECAUTIONS 1 CHAGALL2 DVB T DIGITAL BOARDS 2 LCD 32 VERSION 3 BLOCK DIAGRAM AND PIN OUT 3 PSU PIN OUT 3 1 BOARD LIST 3 2 CHECK DIAGRAM FOR VOLTAGE FAULTY 3 3 NO AUDIO FAULTY 3 4 ABNORMAL COLOUR 3 5 TV FAULTY 3 6 LCD 40 VERSION 4 BLOCK DIAGRAM AND PIN OUT 4 PSU PIN OUT 4 2 BOARD LIST 4 3 CHECK DIAGRAM FOR VOLTAGE FAULTY 4 4 NO AUDIO FAULTY 4 5 ABNORMAL COLOUR 4 5 TV FAULTY 4 5 LCD 42 VERSION 5 BLOCK DIAGRAM AND PIN OUT 5 PSU PIN OUT 5 INVERTER MODULE PIN OUT 5 1 BOARD LIST 5 2 CHECK DIAGRAM FOR VOLTAGE FAULTY 5 3 NO AUDIO FAULTY 5 4 ABNORMAL COLOUR 5 4 TV FAULTY 5 4 LCD 46 VERSION 6 INVERTER PIN OUT 6 FAULTY CHECK 6 2 LCD 52 57 VERSION 7 BLOCK DIAGRAM AND PIN OUT 7 PSU PIN OUT 7 INVERTER MODULE PIN OUT 7 1 CHECK DIAGRAM FOR VOLTAGE FAULTY 7 2 NO AUDIO FAULTY 7 3 ABNORMAL COLOUR 7 3 TV FAULTY 7 3 LCD 70 VERSION 8 BOARD LIST 8 POWER CONNECTION 8 1 INVERTER PIN OUT 8 2 FAN CONTROL MODULE 8 3 CHECK DIAGRAM FOR VOLTAGE FAULTY 8 5 DIFFERENT FAULTIES 8 7 Service manual Chagall2 Generation rev 0 INDEX SAFETY PRECAUTIONS General Guidance An insulation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks It will also protect the receiver and it s
6. Description 1 N C Not connected 2 N C Not connected 3 N C Not connected 4 N C Not connected 5 N C Not connected 6 N C Not connected 7 N C Not connected 8 N C Not connected 9 N C Not connected 10 N C Not connected 11 N C Not connected 12 PWR ON Power On to PSU active LOW Pin out from Chagall2 Digital Board to Master PSU is totally the same of the Page 4 and 4 1 Refer to CN14 CN12 CN2 pin out The BL_ON and DIMMER command to switch on the display are supplied by the Master PSU PSU2 that is connected to the second inverter module in the bottom from right see FIG 13 Other connections are not possible to turn on the display In the next there is the pin out of the inverter module MASTER INVERTER PIN CONFIGURATION see FIG 13 Pin N PIN CONFIGURATION 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 No Connection 12 Backlight ON OFF ON 2 4V 5 5V OFF OV 0 8V 13 Dimming Control OV Min 3 3V Max 14 No Connection SLAVE INVERTER PIN CONFIGURATION Pin N PIN CONFIGURATION 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 Reserved 12 Reserved 13 Reserved 14 Reserved Service manual Chagall2 Generation rev 0 LCD 70 INVERTER PIN OUT FAN CONTROL MODULE This product needs to have a cooling system necessary to protec
7. Left Out 3 L OUT Left Out 4 NG Not connected 5 R OUT Right Out 6 R OUT Right Out PSU PVP2420 PVP3140 For these products were used two different PSU versions PVP 2420 and PVP 3140 Pin out configuration is the same and Lay Out is the same but the components are different In the next there are the pictures to check if PSU is PVP 2420 or PVP 3140 version in simple way This information can be important to check spare part when you must replace it with a new one but to request the spare part it is necessary only the product code because for the two versions were created different product codes PVP 2420 PVP 3140 Looking PVP 2420 and PVP 3140 pictures it is possible to see the next differences IN RED gt PVP2420 has not some components that are presents in PVP 3140 IN YELLOW gt PVP 2420 transformer is smaller than PVP 3140 transformer IN GREEN gt there is the indication of the version see FIG 6 and sometimes if indication is not present it is possible to look label see FIG 7 4 Rew E ey Biber bt 5 Service manual Chagall2 Generation rev 0 LCD 40 DIGITAL BOARD PIN OUT gt PSU PVP2420 PVP3140 PIN OUT Power B D OOO0000 1 1 Ll cta a om w 2x o0 aw ao eo ao form we adu mfp pp eet mis
8. Yes Keyboard Faulty Check Pin 11 CN04 of PSU 5V Check Cable Local Keyboard IR from CN6 Main Board FIG 4 A Yes Cable is OK No Connect Change Cable No No Yes PSU faulty Change Fuse No No PSU output Check Pin 12 CN04 on PSU 0V Yes Yes Display Yes Image OSD lamps ON present No No CONTINUE IN CONTINUE IN THE NEXT PAGE THE NEXT PAGE _ A B Service manual Chagall2 Generation rev 0 LCD 40 NO IMAGE CONTINUE CONTINUE Check Digital FROM THE FROM THE Cable from J5 Main PREVIOUS PAGE PREVIOUS PAGE Board to LVDS A _ B connector panel Check CN05 or Change CN06 on PSU LVDS Cable Voltages OK Disconnect cable from CN05 or CN06 Check CN05 Main Board or CN06 on Panel Faulty ref To inverter pin out Voltages OK ref To inverter pin out Inverter panel Faulty TROUBLESHOOTING FOR DIFFERENT FAULTIES The previous Check Diagram is uselul for the main faulties panel lamps off with panel lamps on stand by status and no power on switch on and switch off in loop Many other faulties can be present but not included in the previous analysis In this section will be described the most common list of problems to find where the faulty is located For every other faulties not present in the next list it will be necessary to contact the Servic
9. for the product To check and find faulty refer to the section of the specific product and when the problem is found check product code and serial number to make the request of spare part faulty to Service Center FIG 1 CHAGALL2 DIGITAL BOARD AND DVB T MODULE Main Board Chagall2 B Sub Board Chagall2 C DVB T Module FIG 1 shows a typical Chagall2 Digital Board composed by Main and Sub Board and DVB T Digital Video Broadcasting Terrestrial module for digital tuner signal In general this configuration is the same for all products LCD and PDP versions In the next all product configurations will be explained Use them to check and find the main faulty and then make the request of spare part to Service Center Connectors and pin out will be different for every product In the next will be described the block diagram pin out tables for PSU and inverter modules check diagram to find voltages faulties troubleshooting for different other faulty and these informations will have some difference about the kind of product So we will see in sequence these models LCD 32 LCD 40 LCD 42 LCD 46 LCD 52 LCD 57 LCD 70 PD 42 PD 50 For some model there are different versions depending on the release of the panel and so some different to analyze can be present The LCD panel versions can have single or double inverter module depending on the release of the panel Digital Board is the same version but schematics
10. loads A label is present on every PSU with the code so that it is possible to check if spare part is Master or Slave In the case that only one PSU is faulty it can be requested the spare part reading the code on the label or in other case it is possible to request PSU board specifying if it is master connection with Digital Board or slave only Pin 12 CN04 connection and the product code of the TV INVERTER INPUT PIN CONFIGURATION FROM CN05 OF MASTER SLAVE PSU 1 Connector Master amp Slave S14B PHA SM TB LF JST Pin Configuration FUNCTION Vin 24 V Vin 24 V vin 24 V 11 12 13 14 10 m s WE Backlight On Off ON 2 4 5 5 V OFF 0 0 8 V Dimming Control OV Min 3 3V Max x u ooa Cables used for the two inverter modules are the same but only Master inverter module needs Backlight and Dimmer commands Remembering that CN05 and CN06 on Master and Slave PSUs have the same pin out it is possible to swap connections between CN05 and CN06 to check if PSU output are faulty if panel does not switch on In every case use the next Check Diagram to find some possible faulty about no image present Service manual Chagall2 Generation rev 0 LCD 527 57 INVERTER PIN OUT N CHECK DIAGRAM FOR VOLTAGE FAULTY Connect Power Cable Power Cable not well connected Or damaged 220 110 V in output EMI Filter Yes Turn On Main Switch Yes
11. will be different because PSU will have a connection more Service manual Chagall2 Generation rev 0 EN CHAGALL2 DIGITAL BOARD N LCD 32 VERSION POWER SUPPLY DVBT MODULE LCD 32 MAINS IN co co LOCAL KEYBOARD 00000 b IR RECEIVER 5 MAIN BOARD 8 gt SUB BOARD pu pewa powa EXTERNAL SPEAKER MAIN BOARD CHAGALL2 CN14 to CN200 of PSU Pin Signal Description 1 12VA 12 V Analog 2 12VA 12 V Analog 3 GND A Ground Analog 4 12VD 12 V Digital 5 12VD 12 V Digital 6 GND Ground 7 GND Ground 8 GND Ground 9 5VD 5 V Digital 10 5VD 5 V Digital 11 STB 5V 5 V stand by 12 PWR ON Power On to PSU active LOW MAIN BOARD CHAGALL2 CN12 to CN402 of PSU Pin Signal Description 1 Not Used Not Used 2 Not Used Not Used 3 DIMM Dimming Panel 4 BL ON Backlight ON Service manual Chagall2 Generation rev 0 c LCD 32 BLOCK DIAGRAM PIN OUT SUB BOARD CHAGALL2 CN2 Pin Signal Description 1 NC Not Connected 2 L OUT Left Out 3 L OUT Left Out 4 NG Not connected 5 R OUT Right Out 6 R OUT Right Out PSU PVP2150 PIN OUT CN400 CN401 Power B D CN402 CN200 1 1 1 1 1 mlelele 1111111111 in Servi
12. B connector panel Check CN05 and Change CN06 on PSU LVDS Cable Voltages OK Disconnect cable from CN05 and CN06 Check CN05 Main Board and M n Faulty or Panel Faulty ref To inverter pin out Voltages OK ref To inverter pin out Inverter panel Faulty PSU faulty TROUBLESHOOTING FOR DIFFERENT FAULTIES The previous Check Diagram is useful for the main faulties panel lamps off noimage with panel lamps on stand by status and no power on switch on and switch off in loop Many other faulties can be present but not included in the previous analysis In this section will be described the most common list of problems to find where the faulty is located For every other faulties not present in the next list it will be necessary to contact the Service Center NO AUDIO NOTE Before to start in analysis check the audio cable to be sure they are ok Referring to LCD 32 analysis Page 3 4 ABNORMAL COLOUR NOTE check image MENU using USER MANUAL and before to analyze use RESET to factory defaults function If the problem is present start with the analysis Referring to LCD 32 analysis Page 3 5 TV INPUT PROBLEMS Referring to LCD 32 analysis Page 3 6 Service manual Chagall2 Generation rev 0 LCD 42 CHECK DIAGRAM 5 4 LCD 46 VERSION For this product exists two different versions The LCD display can have different release 1 single inverter module with d
13. CTOR left inverter module Pin N PIN CONFIGURATION 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 No Connection 12 Backlight ON OFF ON 2 4V 5 5V OFF OV 0 8V 13 Dimming Control OV Min 3 3V Max 14 No Connection SLAVE CONNECTOR right inverter module Pin N PIN CONFIGURATION 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 Reserved 12 Reserved 13 Reserved 14 Reserved As the previous panel version the connection uses same cables but only one inverter module needs switch on command using pin 12 and pin 13 voltages refer to Master connector left inverter module The analysis can be made swapping the cables to find some faulty on PSU or panel because PSU output CNO5 CN06 are totally the same Fig 10 Page 5 2 shows a double inverter configuration for 42 version product very similar to 46 version with two inverter module In the next page it is visible a typical single inverter configuration 46 product FIG 11 On the right there is a metal cover but no inverter module is present inside For the check it must be checked only the connectors visible on the left of the picture Service manual Chagall2 Generation rev 0 LCD 46 INVERTER PIN OUT 6 Sinqle inverter with double connector Metal cover without inverter module CH
14. ECK DIAGRAM FOR VOLTAQE FAULTY Refer to page 5 3 5 4 The analysis is the same of LCD 42 product version and it is not important if there are 2 inverter modules or only one In every case the 2 panel version TROUBLESHOOTING FOR DIFFERENT FAULTIES The previous Check Diagram is useful for the main faulties panel lamps off image with panel lamps on stand by status and no power on Switch on and switch off in loop Many other faulties can be present but not included in the previous analysis In this section will be described the most common list of problems to find where the faulty is located For every other faulties not present in the next list it will be necessary to contact the Service Center NO AUDIO NOTE Before to start in analysis check the audio cable to be sure they are ok Referring to LCD 32 analysis Page 3 4 ABNORMAL COLOUR NOTE check image MENU using USER MANUAL and before to analyze use RESET to factory defaults function If the problem is present start with the analysis Referring to LCD 32 analysis Page 3 5 TV INPUT PROBLEMS Referring to LCD 32 analysis Page 3 6 Service manual Chagall2 Generation rev 0 LCD 46 FAULTY CHECK LCD 52 57 VERSION This product needs two power supply units to manage the double inverter display PSUs are PVP3140 version but they are differents Main PSU supplies the digital board Chagall2 and secondary PSU is a modified version of PVP3140 wi
15. Generation rev 0 LD 70 BOARD LIST EMI Filter Main Switch POWER CONNECTION Master inverter module Power FIG 13 Distribution T To Digital Module PDM wu bu In FIG 13 is visible the connection starting from Main Plug Connector and arriving to Inverter Modules of the panel PSU1 PSUS PSU4 are totally the same version PSU2 has a different hardware configuration Refer to spare part list for the code PSUs are PVP3140 version and PSU2 is the Master while the others three are Slaves Every PSU gives output voltages only if ON Command is present from Digital Board A board in FIG 12 PSU2 is directly connected with the digital board and from CNO4 connector there is a cascade connection to send POWER ON wire connection to the others PSU In the there are PIN out tables from Digital Board to PSU2 and from PSU to the others PSU MAIN BOARD CHAGALL2 CN14 to CN04 of PSU 2 MASTER Pin Signal Description 1 12VA 12 V Analog 2 12VA 12 V Analog 3 GND A Ground Analog 4 12VD 12 V Digital 5 12VD 12 V Digital 6 GND Ground 7 GND Ground 8 GND Ground 9 5VD 5 V Digital 10 5VD 5 V Digital 11 STB 5V 5 V stand by 12 PWR ON Power On to PSU active LOW Service manual Chagall2 Generation rev LD 70 POWER CONNECTION Oo CN04 of PSU 1 MASTER to CN04 of SLAVE PSUs PSU 1 PSU 3 PSU 4 Pin Signal
16. ce manual Chagall2 Generation rev 0 EN LCD 32 PSU PIN OUT INVERTER INPUT PIN CONFIGURATION FROM CN401 OF PSU Pin N PIN CONFIGURATION 24V 24V 24V 24V 24V GND GND GND GND GND No Connection 12 Backlight ON OFF 2 4V 5 25V OFF 0 3V 0 8V Dimming Control 0V Min 3 3V Max No Connection Referring to FIG 2 for connection between PSU Panel Digital Board BOARD LIST A Main Board Chagall2 B Sub Board Chagall2 C EMI Filter D DVBT Module E Power Supply PVP2150 F Audio Module Service manual Chagall2 Generation rev 0 LCD 32 BOARD LIST 3 2 CHECK DIAGRAM FOR VOLTAGE FAULTY This analysis is for display with no image and to find only problem to have pictures Connect Power Cable Power Cable 220 110 V in not well output EMI connected Or Check Pin 1 Filter damage d CN200 on PSU 0 Yes Turn On Main Switch Yes Cable not well connected or Check CN100 Yes on PSU 220 110 V Check Pin 1 CN200 on PSU OV Main Switch Faulty Local Keyboard Faulty Yes Check Pin 2 CN200 of PSU 5 V Check Cable Local Keyboard IR from CN6 Main Board FIG 4 A No No Yes PSU faulty Change Fuse No No PSU output Yes Cable is OK Check Pin 1 CN200 on PSU OV LCD 32 NO IMAGE Yes Yes
17. components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation If any fuse or Fusible Resistor in this monitor is blown replace it with the specified When replacing a high wattage resistor Oxide Metal Film Resistor over 1W keep the resistor 10mm away from PCB Keep wires away from high voltage or high temperature parts Leakage Current Cold Check Antenna Cold Check with the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to the chassis the measured resistance should be between 1M Ohm and 5 2M Ohm When the exposed metal has no return path to the chassis the reading must be infinite Other abnormality exists that must be corrected before the receiver is returned to the customer Leakage Current Hot Check See below Figure Plug the AC cord directly into the AC outlet Do not use a line Isolation Transformer during this check Connect 1 5K 10watt resistor in parallel with a 0 15uF capacitor between a known good earth ground Water Pipe Conduit etc and the exposed metallic parts Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms vo
18. e Center NO AUDIO NOTE Before to start in analysis check the audio cable to be sure they are ok Referring to LCD 32 analysis Page 3 4 ABNORMAL COLOUR NOTE check image MENU using USER MANUAL and before to analyze use RESET to factory defaults function If the problem is present start with the analysis Referring to LCD 32 analysis Page 3 5 TV INPUT PROBLEMS Referring to LCD 32 analysis Page 3 6 Service manual Chagall2 Generation rev 0 LCD 40 NO IMAGE AUDIO FAULTY gt LCD 42 VERSION In the next it will be shown the block diagram for LCD 42 FHD full high definition version The same schematic can be used for some LCD 46 version This product has 2 inverter modules and so PSU has 2 connection to supply the 2 half of the panel Some LCD 46 version was produced with the same configuration of the next Block Diagram because the panel release is with 2 inverter modules MAINS POWER SUPPLY MAIN SWITCH INVERTER BOARD 2 DVBT MODULE c lt a gt x lt 3 Ww O IR RECEIVER MAIN BOARD INTERNAL SPEAKER SUB BOARD INVERTER BOARD 1 Fig 9 LCD 42 Block Diagram The connections from PSU to Digital Board Chagall2 are the same of Page 4 and 4 1 Refer to CN14 CN12 CN2 pin out Digital board is the same of the other LCD version but with different firmware release created for LCD 42 version PSU used f
19. ges No OK CN06 on PSU_1 3 4 panel OK Faulty No Voltages PSU_1 3 4 faulty Disconnect cable from CN05 or CN06 of PSU 1 3 4 Check CN05 and CN06 on Psu_1 3 4 It could be present some a trouble only for one inverter module In this case it is necessary to contact Service Center and make request about the possibility to solve the problem Change LVDS Cable Disconnect cable from Check CN05 Main Board CN05 or CN06 of and CN06 on PSU 2 PSU 2 Panel Faulty Voltages No OK TROUBLESHOOTING FOR DIFFERENT FAULTIES The previous Check Diagram is uselul for the main faulties panel lamps off noimage with panel lamps on stand by status and no power on switch on and switch off in loop Many other faulties can be present but not included in the previous analysis In this section will be described the most common list of problems to find where the faulty is located For every other faulties not present in the next list it will be necessary to contact the Service Center NO AUDIO NOTE Before to start in analysis check the audio cable to be sure they are ok Referring to LCD 32 analysis Page 3 4 Service manual Chagall2 Generation rev 0 LCD 70 CHECK DIAGRAM ABNORMAL COLOUR NOTE check image MENU using USER MANUAL and before to analyze use RESET to factory defaults function If the problem is present start with the analysis Referring to LCD 32 a
20. heck antenna installation or some near interference installation is present Service manual Chagall2 Generation rev 0 LCD 40 VERSION In the next it will be shown the block diagram for LCD 40 FHD full high definition version The same schematic can be used for some LCD 46 version with the only difference that in this case the inverter module will have two connections between inverter module and PSU board but this will be explained in the LCD 46 section MAINS IN POWER SUPPLY MAIN SWITCH DVBT MODULE e lt e gt x a lt e e IR RECEIVER MAIN BOARD INTERNAL SPEAKER SUB BOARD INVERTER BOARD Fig 5 LCD 40 Block Diagram MAIN BOARD CHAGALL2 CN14 to CN04 of PSU Pin Signal Description 1 12VA 12 V Analog 2 12VA 12 V Analog 3 GND A Ground Analog 4 12VD 12 V Digital 5 12VD 12 V Digital 6 GND Ground 7 GND Ground 8 GND Ground 9 5VD 5 V Digital 10 5VD 5 V Digital 11 STB 5V 5 V stand by 12 PWR ON Power On to PSU active LOW Service manual Chagall2 Generation rev 0 1 0 40 BLOCK DIAGRAM PIN OUT MAIN BOARD CHAGALL2 CN12 to CN03 of PSU Pin Signal Description 1 Not Used Not Used 2 Not Used Not Used 3 DIMM Dimming Panel 4 BL ON Backlight ON SUB BOARD CHAGALL2 CN2 Pin Signal Description 1 NC Not Connected 2 L OUT
21. l be described the most common list of problems to find where the faulty is located For every other faulties not present in the next list it will be necessary to contact the Service Center Change LVDS Cable Disconnect cable from Check CN05 Main Board CN05 or CN06 of and CN06 on PSU 1 PSU 1 Fon or Panel Faulty Voltages OK NO AUDIO NOTE Before to start in analysis check the audio cable to be sure they are ok Referring to LCD 32 analysis Page 3 4 ABNORMAL COLOUR NOTE check image MENU using USER MANUAL and before to analyze use RESET to factory defaults function If the problem is present start with the analysis Referring to LCD 32 analysis Page 3 5 TV INPUT PROBLEMS Referring to LCD 32 analysis Page 3 6 Service manual Chagall2 Generation rev 0 LCD 527 57 CHECK DIAGRAM I G LCD 70 VERSION In the FIG 12 is visible LCD 70 monitor version in the back to describe easily the configuration of this product FIG 12 SIGNAL BOARDS A Main Board Chagall2 B Sub Board Chagall2 C Speaker Module D DVB T Module BOARDS LIST REFER TO FIG 12 POWER BOARDS E Power Distribution Module F EMI Filter G Power Supply Module PSU 1 slave H Power Supply Module PSU 2 master 1 Power Supply Module PSU slave J Power Supply Module PSU 4 slave FANS K FAN 1 L FAN 2 M FAN N Fan Control Module Service manual Chagall2
22. lt or more sensitivity Reverse plugs the AC cord into the AC outlet and repeats AC voltage measurements for each exposed metallic part Any voltage measured must not exceed 0 75 volt RMS that is corresponds to 0 5mA In case any measurement is out of the limits specified there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer Leakage Current Hot Check circuit AC Volt meter Good Earth Ground such as VVATER PIPE To Instrument s 0 15 CONDUIT etc exposed ET METALLIC PARTS AA 1 5 Kohm 10W s Service manual Chagall2 Generation rev 0 SAFETY PRECAUTIONS CHAGALL2 DVB T DIGITAL BOARDS This digital board is created for TV configurations to have analog terrestrial and digital tuner DVB T In the next will be explained how to check and find faulties for Plasma and LCD product The analysis is different because Plasma Display and LCD Display are totally different technologies Chagall2 Digital Board has different hardware configuration because every panel Plasma Display LCD Display or producer has different timings or voltages The specific of each display is defined by the producer and the firmware to mage the digital board is realized using these specifics It is really important to have the product code for every request to Service Center so that the spare part will be surely in the hardware version needed and with the firmware customized
23. nalysis Page 3 5 TV INPUT PROBLEMS Referring to LCD 32 analysis Page 3 6 Service manual Chagall2 Generation rev 0 LCD 70 DIFFERENT FAULTIES x
24. o MENU to set Audio is CONTINUE in the present next page B1 CONTINUE in the CONTINUE from the next page 1 next page C1 Service manual Chagall2 Generation rev 0 LCD 32 NO IMAGE AUDIO FAULT Y CONTINUE in CONTINUE from the CONTINUE from the Check audio the previous page previous page A1 previous page B1 setting of the CI source Yes Checked Internal Audio with all inputs Audio settings OK Yes Configure Audio settings of the No Digital Board Audio OK source for every faulty main input or sub Yes Yes Audio present Connection Audio switch Sub Board Audio in EXTERNAL Audio module present position refer ok to user manual Cable SUB Board Audio Audio Module Module Faulty Faulty ABNORMAL COLOUR NOTE check image MENU using USER MANUAL and before to analyze use RESET to factory defaults function If the problem is present start with the analysis Yes Yes Use FACTORY Source Settings OK Same problem with Video and Graphic inputs Check Source settings TEST Change Source Settings No No Problem present again Same problem Graphic Yes with TV and No input No Scart problem Yes Main Board CONTINUE in the next No Yes Faulty page AQ Main Board CONTINUE in the next Main Board
25. or this monitor is PVP3140 page 4 1 and so for the pin out refer to Page 4 2 For this product are used the two connections CN05 and CNO6 output connectors from PSU because display has two inverter modules These two modules are necessary to manage each of the two half of panel lamps see FIG 9 in the top CNO05 and CNO06 have the same pin out but cables are differents In fact the 2 inverter modules have different priority master and slave and different connectors 14 pins the Master connector and 12 pins the Slave connector In every case it is possible to swap CN05 and CNO6 to check if PSU output are working correctly if laps are not turning on To switch on the panel it is necessary to send Backlight command and Dimmer command using one inverter module Master In the next page there is the INVERTER CONNECTOR PIN CONFIGURATION that can be necessary to make check for some turn on problem Service manual Chagall2 Generation rev 0 EN o LCD 42 BLOCK DIAGRAM PIN OUT INVERTER CONNECTOR PIN CONFIGURATION Master Slave Inverter Connector S14B PH SMC JST Inverter Connector S12B PH SMC JST or Equivalent or Equivalent Mating Connector PHR 14 or Equivalent Mating Connector PHR 12 or Equivalent Table 5 INVERTER CONNECTOR PIN CONFIGULATION Power Supply 2 2 VBL Power Supply 24 0V VBL VBL 3 VBL Power Supply 24 0V VBL VBL 4 VBL Power Supply 24 0V VBL VBL
26. ouble connectors refer to FIG 5 page 4 2 two inverter modules with single connector each one refer to FIG 9 page 5 All the boards are the same in the product versions and the only difference is the display The analysis can use the same concept used for the previous product described About the pin out tables it is possible to refer to page 4 and 4 1 Digital Board pin out PSU board is PVP3140 refer to page 4 2 SINGLE INVERTER VERSION PIN OUT MASTER CONNECTOR CN1 Pin N PIN CONFIGURATION 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 No Connection 12 Backlight ON OFF ON 2 4V 5 25V OFF 0 3V 0 8V 13 Dimming Control OV Min 3 3V Max 14 No Connection SLAVE CONNECTOR CN2 Pin N PIN CONFIGURATION 1 24V 2 24V 3 24V 4 24V 5 24V 6 GND 7 GND 8 GND 9 GND 10 GND 11 Reserved 12 Reserved 13 Reserved 14 Reserved The cables are the same and pin out of PSU board CN05 and CN06 are the same too but to switch on the monitor it is necessary to have output 12 and 13 of CN1 see Master Connector pin out To check some inverter or PSU faulty it is possible to swap CN05 and CNO6 connectors and verify with tester the voltages Service manual Chagall2 Generation rev 0 LCD 46 INVERTER PIN OUT o DOUBLE INVERTER VERSION PIN OUT MASTER CONNE
27. ply PVP3140 F Audio Module G Master inverter module H Slave inverter module Looking FIG 10 on the top it is clear that board configuration is similar to the other versions with the only difference of the panel that has Master inverter Module on the left and Slave inverter Module on the right Now use the next Check Block to find voltage faulty Service manual Chagall2 Generation rev 0 lt LCD 42 INVERTER MODULES PIN OUT C N CHECK DIAGRAM FOR VOLTAGE FAULTY Connect Power Cable Power Cable not well connected Or damaged 220 110 V in output EMI Filter Turn On Main Switch Yes Cable not well Check CN101 connected or on PSU 220 110 V Main Switch Faulty Yes Check Pin 11 CN04 of PSU 5V No No Yes PSU faulty Change Fuse No No PSU output Check Pin 12 CN04 on PSU OV All display Yes Image OSD ON present No No CONTINUE IN CONTINUE IN THE NEXT PAGE THE NEXT PAGE A Yes Check Pin 12 CN04 on PSU OV Yes Check Pin 12 CN04 on PSU OV Local Keyboard Faulty Check Cable Local Keyboard IR from CN6 Main Board FIG 4 A Yes Cable is OK Service manual Chagall2 Generation rev 0 LCD 42 CHECK DIAGRAM CONTINUE CONTINUE Check Digital FROM THE FROM THE Cable from J5 Main PREVIOUS PAGE PREVIOUS PAGE Board to LVDS A _
28. s sis ss EUN I NOTE looking PIN OUT indications on PSU board there is a mismatch with the document here attached FIG 8 Refer to the PIN OUT of this service manual Service manual Chagall2 Generation rev 0 LCD 40 PSU PIN OUT INVERTER INPUT PIN CONFIGURATION FROM CN05 OF PSU Pin No Pin Configuration FUNCTION 1 Vin 24 V 2 Vin 24 V 3 Vin 24 V 4 Vin 24 V 5 Vin 24 V 6 GND 7 GND 8 GND 9 GND 10 GND 11 No Connection 12 Backlight On Off ON 2 4 5 25 V OFF 0 0 8 V 13 Dimming Control OV Min 3 3V 14 No Connection BOARD LIST Main Board Chagall2 B Sub Board Chagall2 C EMI Filter D DVBT Module E Power Supply PVP2420 PVP 3140 for the last version product F Audio Module Board list is the same of the LCD 32 version page 3 2 FIG 4 Service manual Chagall2 Generation rev 0 ITI lt A LCD 40 INVERTER PIN CONFIGURATION CHECK DIAGRAM FOR VOLTAGE FAULTY This analysis is for display with no image and to find only problem to have pictures Connect Power Cable Power Cable 220 110 V in not well output EMI connected Or Filter damaged Check Pin 12 CN04 on PSU OV Yes Turn On Main Switch Cable not well connected or Check CN101 Yes on PSU 220 110 V Check Pin 12 CN04 on PSU 0V Main Switch Faulty Local
29. t display by over burn The high consumption of this panel requests an automatic adjustment of the fans so that the cooling will be proportional to the instant temperature of the display The consumption can strongly change depending on the images used or the input To manage in automatic way the cooling of the panel it is present a NTC sensor that checks the temperature near the control board of the panel FIG 14 This sensor is connected on the Fan Control Module see FIG 12 N and depending on the temperature it gives a changing command to have faster or slower speed of the fan The voltages for fans it will increase or decrease with higher or lower temperature LCD 70 FAN CONTROL MODULE From CN05 PSU 3 slave FAN 1 To FAN 2 To FAN 3 Kin FIG 12 16 12 Min FIG 12 Service manual Chagall2 Generation rev 0 Oo From CN05 PSU 3 SLAVE to CN 8 Fan Control Module Pin N CNO5 PIN CONFIGURATION Pin N CN 2 1 24 V 1 2 24 V 2 3 N C 3 4 N C 5 N C 6 GND 4 7 GND 5 8 N C I 9 N C 10 N C 11 N C 12 N C 13 N C 14 N C PIN OUT CN 2 FAN CONTROL MODULE Pin N PIN CONFIGURATION Fan control module is supplied with 24V and voltage output for FAN has a range starting to about 4V 25 C up to 10V In the next page there is the check diagram to anal
30. th a load resistor on the rear Ep POWER SUPPLY MASTER POWER SUPPLY SLAVE MAIN SWITCH INVERTER BOARD 2 lt ae gt w ix IR RECEIVER MAIN BOARD A INTERNAL SPEAKER SUB BOARD TA INVERTER BOARD 1 Pin out from Chagall2 Digital Board to Master PSU is totally the same of the Page 4 and 4 1 Refer to CN14 CN12 CN2 pin out MAIN BOARD CHAGALL2 CN14 to CN04 of PSU MASTER Pin Signal Description 1 12VA 12 V Analog 2 12VA 12 V Analog 3 GND A Ground Analog 4 12VD 12 V Digital 5 12VD 12 V Digital 6 GND Ground 7 GND Ground 8 GND Ground 9 5VD 5 V Digital 10 5VD 5 V Digital 11 STB 5V 5 V stand by 12 PWR ON Power On to PSU active LOW Service manual Chagall2 Generation rev 0 LCD 527 57 BLOCK DIAGRAM NI CN04 of MASTER PSU to CN04 of SLAVE PSU Pin Signal Description 1 N C Not connected 2 N C Not connected 3 N C Not connected 4 N C Not connected 5 N C Not connected 6 N C Not connected 7 N C Not connected 8 N C Not connected 9 N C Not connected 10 N C Not connected 11 N C Not connected 12 PWR ON Power On to PSU active LOW The SLAVE PSU is necessary to send voltages to the second inverter module and it receives only Power ON command from digital board To work correctly SLAVE PSU needs to be modified with a rear
31. yze voltage faulty but for some faulty about cooling of the monitor refer to the previous section FAN CONTROL MODULE 8 3 Service manual Chagall2 Generation rev 0 LCD 70 FAN CONTROL MODULE CHECK DIAGRAM FOR VOLTAGE FAULTY This analysis is for display with no image and to find only problem to have pictures Connect Power Cable No PUS_2 CN4 P12 0V Power Cable 220 110 V in output EMI not well No PSU _2 Filter connected Or output Faulty Switch on with local keyboard LCD 70 CHECK DIAGRAM Is Main Switch ON EMI Filter LED ON Faulty PUS 2 CN4 P12 0V Cable not well No connected Or Faulty Switch on with Remote 220 110 V in input PDM Control Yes Cable not well Local Yes connected Or Keyboard PDM Faulty Faulty 220 110 V in output PDM PUS_2 CN4 P12 0V Yes Check Cable Local PSU Fuses Keyboard IR from OK CN6 Main Board FIG 4 Yes PUS_2 CN4 i Yes Main Board Faulty Pll 5V No Yes Connect Change Cable Image OSD present All display Yes ON CONTINUE CONTINUE IN THE NEXT IN THE NEXT PAGE B PAGE A Service manual Chagall2 Generation rev 0 85 CONTINUE CONTINUE Check Digital FROM THE FROM THE Cable from J5 Main PREVIOUS PAGE PREVIOUS PAGE Board to LVDS A _ B connector panel Check CN05 or CN06 on PSU 2 Volta

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