Magnavox 19MD311B Manual de servicio

19” LCD TV/DVDchassis FL11.8© 2011 Funai Electric Co., Ltd.All rights reserved. No part of this manual may be reproduced, copied, transmitted, dissemi

3-4 LTVN_ISPSafety Check after ServicingExamine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and

4-1 TVDVDN_SNSTANDARD NOTES FOR SERVICINGCircuit Board Indications1. The output pin of the 3 pin Regulator ICs is indicated as shown.2. For other ICs,

4-2 TVDVDN_SNaround the flat pack-IC to protect other parts from damage. (Fig. S-1-2)3. The flat pack-IC on the CBA is affixed with glue, so be carefu

4-3 TVDVDN_SNWith Iron Wire:1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied

4-4 TVDVDN_SNInstructions for Handling Semi-conductorsElectrostatic breakdown of the semi-conductors may occur due to a potential difference caused by

5-1 FL11.8-A_DCCABINET DISASSEMBLY INSTRUCTIONS1. Disassembly FlowchartThis flowchart indicates the disassembly steps for the cabinet parts, and the C

5-2 FL11.8-A_DCReference Notes1. CAUTION 1: Electrostatic breakdown of the laser diode in the optical system block may occur as a potential difference

5-3 FL11.8-A_DC[2] Rear Cabinet(S-1)[1] Stand Assembly(S-4)(S-3)(S-2)(S-2)(S-2)(S-2)(S-2)Fig. D1

5-4 FL11.8-A_DCEither of two placesFPC CableChassis CoverAMain ChassisRemove the two screws (S-7b), then short-circuit the three short lands by solder

5-5 FL11.8-A_DC(S-13)[7] Jack CBAJack Holder(D)Jack Holder(A)[6] Digital Main CBA Unit(S-8)(S-8)(S-9)(S-11)(H-1)(S-10)Shield Box(S-12)Fig. D3

IMPORTANT SAFETY NOTICEProper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommend

5-6 FL11.8-A_DC[8] Main CBA[9] Stand Holder(S-14)(S-14)(S-14)(S-14)(S-15)(S-16)Fig. D4

5-7 FL11.8-A_DC(S-17)(S-17)(S-18)[10] LCD ModuleAssembly[12] FunctionCBA[11] SpeakerSpeakerHolderSpeakerHolder[13] Front Cabinet[LD190SS2, 19MD301B/F7

5-8 FL11.8-A_DCTV Cable Wiring DiagramTo LCD ModuleAssemblyTo LCD ModuleAssemblyTo DVD MechanismTo LCD ModuleAssemblyCN601CN301CN201CN801CN401CN3002CN

6-1 FL11.8EAELECTRICAL ADJUSTMENT INSTRUCTIONSGeneral Note: “CBA” is abbreviation for “Circuit Board Assembly.”Note: Electrical adjustments are requir

6-2 FL11.8EA1. Purity Check ModeThis mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.1. Enter t

6-3 FL11.8EAThe White Balance Adjustment should be performed when replacing the LCD Panel or Digital Main CBA.3. White Balance AdjustmentPurpose: To m

7-1 FL11.11INTHOW TO INITIALIZE THE LCD TV/DVDThe purpose of initialization is to place the set in a new out of box condition. The customer will be pr

8-1 FL11.8FWFIRMWARE RENEWAL MODE< DVD Section >1. Turn the power on and press [EJECT] button on the remote control unit to put the LCD TV/DVD i

8-2 FL11.8FW< LCD TV Section >Equipment Requireda. USB storage deviceb. Remote Control UnitFirmware Update ProcedureNote: There are two states

9-1 FL11.8TRTROUBLESHOOTING[ Power Supply Section ]The power cannot be turned on. The fuse blows out.FLOW CHART NO.1FLOW CHART NO.2Is normal state res

TABLE OF CONTENTSSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9-2 FL11.8TRCheck Q202, Q203, D203, P-ON-H1 line and their periphery circuit, and service it if defective.PANEL+24.5V is not output.FLOW CHART NO.6Is

9-3 FL11.8TRSee FLOW CHART No.8 <P-ON+7V is not output.>TUNER+5V is not output. (PANEL+13V is outputted normally.)FLOW CHART NO.10Is approximate

9-4 FL11.8TREV+9V is not output. (PANEL+13V is outputted normally.)FLOW CHART NO.15Is approximately +13V voltage supplied to thecollector of Q905?Ye s

9-5 FL11.8TRIs approximately +5V voltage supplied to Pin(1) of IC631?Ye sNoCheck Q634, D650 and their periphery circuit, andservice it if defective.Se

9-6 FL11.8TR[ Video Signal Section ]NoIs the "L" pulse sent out Pin(1) terminal of remote control receiver (RS101) when the infrared remote

9-7 FL11.8TRPicture does not appear normally.(S-Video input)FLOW CHART NO.5Are the video signal outputted to Pin(6, 8) of CN302?Check the line between

9-8 FL11.8TR[ Audio Signal Section ]Check SP861,SP862 and their periphery circuit,and service it if defective.Are the audio(L/R) signals inputted to P

9-9 FL11.8TRCheck SP861,SP862 and their periphery circuit,and service it if defective.Are the audio(L/R) signals inputted to Pin(1, 9)of IC801?Ye sYe

9-10 FL11.8TRCheck SP861,SP862 and their periphery circuit,and service it if defective.Are the audio(L/R) signals inputted to Pin(1, 9)of IC801?Ye sYe

10-1FL11.8BLSK3KEY SWITCHIC3005(MAIN MICRO CONTROLLER)DIGITAL MAIN CBA UNITFUNCTION CBAMAIN CBACN101BREMOTESENSORRS101AL+3.3VD104POWERSTANDBYD103D950D

1-1 FL11.8SPSPECIFICATIONS< LCD TV Section >< TUNER / NTSC >ANT. Input ---------------------- 75 Ω Unbal., F type< TUNER / ATSC ><

10-2 FL11.8BLV2. Video Block DiagramDIGITAL MAIN CBA UNITCOMPONENT-Y-INCOMPONENT-Pb-INCOMPONENT-Pr-INJK731JK732JK733VIDEO-IN4 4S-VIDEO-C-IN6 6S-VIDEO-

10-33. Audio Block DiagramFL11.8BLAIC771(AUDIO SELECTOR)HDMI-AUDIO(L)-INHDMI-AUDIO(R)-INJK721JK722COMPONENT-AUDIO(L)-INCOMPONENT-AUDIO(R)-INJK741JK742

10-44. Digital Signal Process Block DiagramFL11.8BLDDIGITAL MAIN CBA UNITIC3005 (DIGITAL SIGNAL PROCESS)CN3005LLV1(+)21LLV1(-)20LLV0(+)23LLV0(-)22LLV2

10-55. Inverter Block DiagramFL11.8BLINVMAIN CBAPROTECT3BACKLIGHT-ADJBACKLIGHT-SWTO SYSTEMCONTROLBLOCK DIAGRAMIC1001(PWM CONTROL)BACKLIGHT12CN1002Q100

10-66. Power Supply Block DiagramFL11.8BLPHOT COLDMAIN CBAHOT CIRCUIT. BE CAREFUL.Q602SWITCHINGCONTROL143 2IC601T6012LINEFILTERL601AC601AC CORDBRIDGER

10-77. DVD System Control / Servo Block DiagramFL11.8BLSDIC301(SERVO DRIVE)CN301MSLED MOTORMSPINDLE MOTORIC101(MICRO CONTROLLER)+-+-+-+-+-+-+-SLEDMOTO

10-8 FL11.8BLDDC16D18A17B15DVD-LD 8CD-LD 10PD-MONI 7FS(+) 2FS(-) 3TS(+) 1TS(-) 4CN201CN201CN201IC201(SW)IC101 (MICRO CONTROLLER)FSFS(+)CD/DVDFS(-)TS(+

11-1 FL11.8SCSCHEMATIC DIAGRAMS / CBA AND TEST POINTSStandard NotesWARNINGMany electrical and mechanical parts in this chassis have special characteri

11-2 FL11.8SCLIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:1. CAUTION:CAUTION: FOR CONTINUED PROTECTION AG

11-31SS133D1009CN100220.01C10041SS133D101412345678Q1005TPC8214-H10KR111110KR1015390R101810P/6KVC10081SS133D10082200PC1001KTC3199-GR-AT/PQ10011100KR108

1-2 FL11.8SP<DVD Section>< DVD >Note: Nominal specifications represent the design specifications. All units should be able to approximate

11-482R304LK1608R22KTL30247PC31047PC311LK1608R22KTL303330/10VC3030R3020R3039DVD-DISC-IN14GND2KEY-IN28DVD-SDATA22DVD-Y12GND18DVD-Pr7DVD-REMOTE21GND15DV

11-54HEADPHONE(R)22INPUT05GND6GND2SP(R)11GND9HEADPHONE(L)7GND14P-ON+9V23SPDIF17GND12GND25GND24INPUT18GNDCN7021SP(R)21GND3HEADPHONE(R)10HEADPHONE(L)29G

11-6390KR603560P/2KVC606KTC3199-GR-AT/PQ6310.39/2WR610390KR6042200P/100VC6452.2KR6112SC2120-YQ6021800P/100VC608GDSTK5A50DQ6014V3BSB-T26D6050.082/100VC

11-710KR774KTC3199-GR-AT/PQ72275R752JK741JK73382KR780100R846100KR754100PC752100KR793100PC7511C75713VEEVDD115214163651147121089GNDINHSWCTLIC771TC4052BF

11-8CN101B1 GND2 REMOTE7 KEY-IN24 LED18 DVD-LED3 AL+3.3V6 KEY-IN15 P-ON-H1WIRER951SW951SW954 SW952OPENR954SW9552.2KR953SW953OPENR9552.2KR9520.1C9514.7

11-91 STV3 OE16TP4 CPV5 POL2 XA0CN300524 GND13 LLV3(+)10 LLV4(-)15 LLVCLK(-)16 LLVCLK(+)12 LLV3(-)19 LLV2(+)11 LLV4(+)18 LLV2(-)23 LLV0(+)20 LLV1(-)21

11-10GND7COM-VIDEO-Y-IN15GND1GND9S-VIDEO-Y-IN8SPDIF2RESET23AUDIO-MUTE20CN3006KEY-IN129GND25S-VIDEO-C-IN6COM-VIDEO-Pr-IN19GND16COM-VIDEO-Pb-IN17VIDEO-I

11-11L3ACLK123456791081112131516 14GND VCC NUNUENHANCEDMULTI-LEVELDELTA-SIGMAMODULATORZERO DETECT4X/8XOVERSAMPLINGDIGITAL FILTER/FUNCTIONCONTROLLERLPF

11-12IC3002K4T51163QG-HCF7*A VDDJ2VREFE2 NUK2CKEJ8CKK8CKL8CSK7RASL7CASK3WEL1BA2/NUL3BA1L2BA0R2A12P7A11M2A10/APP3A9P8A8P2A7N7A6N3A5N8A4N2A3M7A2M3A1M8A0

11-13P-ON+3.3V1921 AL+3.3VP-ON-H21GND23OE224P-ON+3.3V20P-ON-H19REMOTE25GND3P-ON+5V/LED-R13BACKLIGHT-ADJ28BACKLIGHT-SW26CN3002VCOM-PWM29BACKLIGHT-SW0.1

2-1 TVDVDN_LBSP(1EM435619)(A1DN2UH).fmLASER BEAM SAFETY PRECAUTIONSThis DVD player uses a pickup that emits a laser beam.The laser beam is emitted fro

11-14HDMI-SCL16 HDMI-DATA12 CLOCK(-)JK30021 DATA2(+)6 DATA1(-)3 DATA2(-)14 NU9 DATA0(-)10 CLOCK(+)7 DATA0(+)5TMDS DATA1 SHIELD17 GND18 +5V13 HDMI-CEC1

11-15Q254KTA1504S-Y-RTK/PQ253KTC3875S-GR-RTK/PQ252KTA1504S-Y-RTK/PQ251KTC3875S-GR-RTK/PL20147uHFSTSC3110.1C3180.1C4030.1C3100.1C4020.1C3010.1C2100.1C3

11-1612345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455 56 57 58 59 60 61 62 63 64 65 66 67 68 69 7

11-170.1C561R56747R56547300R106 FADR(0~19)EV+3.3V(D)EXT-WEDVD-SPDIFEXT-CEDVD-YEXT-OE123456791081112131516141718192021302827422926254039242322413837363

11-18PCB STUD4A/125VQ1024/BLACK/WHITEREPLACE FUSE AS MARKEDRISK OF FIRE-COLDTM601TM602BA01N4F0101 4COLDHOTC7A3 A3E234498A01NMPWJGNDDIF +DIF -GNDKEY-IN

11-19PROTECT2RCV-INP-ON+3.3VP-ON+5.0V3.5Vfor1.8V6.7Vfor1.0VGNDGNDGNDGNDVCOM-PWMVGH+24.5VGNDP-ON+5VGNDPROTECT2P-ON-H1LCD+13VGNDGND5.5Vfor3.3V5.5Vfor3.3

11-20PbPbPbCN101CN101A/GREEN/RED/ORANGETOOL NO.1 2 3 4 5 6 7 8 9 10BA94N0F0102 2 ALC7 19/22W BASEBA94N0F0102 2 BC7A3 A31229281124C7A3 A3BA94N0F0102 2P

11-21BA94N0F01022POWERSW109SW951PLAYSTOPSW952SW953EJECTSW105VOL.UPSW104VOL.DOWNMENUSW106SW108SW107CH.UPCH.DOWNRS101D104D103ST.BYPOW.D950DVDD951SW955SW

WAVEFORMSLC9NWF112-1Input: NTSC Color Bar Signal (with 1kHz Audio Signal)WF1 ~ WF7 = Waveforms to be observed atWaveform check points.(Shown in Schem

FL11.8WF2Input: NTSC Color Bar Signal (with 1kHz Audio Signal) DVD Video (Play MODE) WF8 ~ WF13 = Waveforms to be observed atWaveform che

3-1 LTVN_ISPIMPORTANT SAFETY PRECAUTIONSPrior to shipment from the factory, our products are strictly inspected for recognized product safety and elec

FL11.8WI113-1TUNER UNITHDMI- AUDIO(L)-INHDMI- AUDIO(R)-INMAIN CBADIGITAL MAIN CBA UNITHDMI-CONNECTOR-1PC-RGB-INUSB JACKHDMI-CONNECTOR-2LCD MODULEASSEM

FL11.8WI2CN201CN301LOAD-DISCLED-CONT2DVD-DISC-OUT3EV+1.2V5EV+3.3V6EV+3.3V7EV+3.3V8DVD-ON+3.3V9DVD-ON+5V10EV+9V11EV+9V12GND13GND14GND15GND16GND17GND18G

14-1 TVDVDN_TISYSTEM CONTROL TIMING CHARTSDisc IN(TL221)Sled Drive(TP303)Disc Drive(TP301)Focus Drive(TP304)Tracking Drive(TP302)0V3.3V0V1.65V0V0V0V1.

15-1 FL11.8LELEAD IDENTIFICATIONS1: Vin2: Vo3: GND123ECBECBGDS BCE5871236412431: A2: K3: E4: C85411698118109154811: GND2: Vout3: Vin1232SC4881FTK5A50D

16-1 FL11.8 -A_CEXEXPLODED VIEWSCabinet [LD190SS2, 19MD301B/F7]A1A6A5L1L9L1L8L3L3See Electrical Parts List for parts with this mark.Digital Main CBA

16-2 FL11.8 -A_CEXCabinet [LD190EM2, 19MD311B/F7]A1A6L1L9L1L8L1L3L3See Electrical Parts List for parts with this mark.Digital Main CBA UnitAC601Funct

16-3 FL11.8PEXPacking S3S1Packing TapePacking TapeS2S3X1X10Some Ref. Numbers are not in sequence.L17X2S4X6S6S5StandAssemblyX4X3FRONTFRONTTa p eFixlon

2011/04/22 17-1 A1DN2CA.fmPARTS LIST [LD190SS2 (Serial No.: DS1)]Mechanical PartsPRODUCT SAFETY NOTE: Products marked with a # have special characteri

2011/04/22 17-2 A1DN2EL.fmElectrical PartsPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before repla

2011/04/22 17-3 A1DN2EL.fmC832 CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V CHD1JZ30F104C833 CHIP CERAMIC CAP.(1608) F Z 0.1µF/50V CHD1JZ30F104C906 CHIP CERA

3-2 LTVN_ISP3. Design Alteration Warning - Do not alter or add to the mechanical or electrical design of this TV receiver. Design alterations and addi

2011/04/22 17-4 A1DN2EL.fmD640 SCHOTTKY BARRIER DIODE SB240-B/P NDWZ000SB240D641 DIODE SCHOTTKY SB360BH NDWZ000SB360D642 SWITCHING DIODE 1SS133(T-77)

2011/04/22 17-5 A1DN2EL.fmQ1007 TRANSISTOR KTA1267-GR-AT/P NQS1KTA1267PQ1008 TRANSISTOR KTC3199-GR-AT/P NQS4KTC3199PQ1009 TRANSISTOR KTC3199-GR-AT/P N

2011/04/22 17-6 A1DN2EL.fmR676 RES CARBON FILM T 1/4W J 22 Ω RCX4220T1001R677 RES CHIP 1608 1/10W J 1k Ω RRJ102RYL002R678 RES CHIP 1608 1/10W J 10k Ω

2011/04/22 17-7 A1DN2EL.fmJACK ASSEMBLYJACK CBAR1058 RES CHIP 1608 1/10W F 10.0k Ω RTW1002HH008R1059 RES CHIP 1608 1/10W F 10.0k Ω RTW1002HH008R1060 R

2011/04/22 17-8 A1DN2EL.fmFUNCTION CBAD705 DIODE ZENER 8V2BSB-T26 NDTB8R2BST26D706 DIODE ZENER 8V2BSB-T26 NDTB8R2BST26D707 ZENER DIODE EDZTE618.2B QD1

2011/04/22 17-9 A1DN2EL.fmR118 RES CHIP 1608 1/10W F 10.0k Ω RTW1002HH008R950 RES CARBON FILM T 1/4W J 220 Ω RCX4221T1001R951 WIRE CP STP-S-0.50 XZ40F

2011/04/22 17-10 A1DN0CA.fmPARTS LIST [19MD301B/F7 (Serial No.: DS1)]Mechanical PartsPRODUCT SAFETY NOTE: Products marked with a # have special charac

2011/04/22 17-11 A1DN0EL.fmElectrical PartsPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before repl

2011/04/22 17-12 A1DN1CA.fmPARTS LIST [LD190EM2 (Serial No.: DS1)]Mechanical PartsPRODUCT SAFETY NOTE: Products marked with a # have special character

2011/04/22 17-13 A1DN1EL.fmElectrical PartsPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before repl

3-3 LTVN_ISPPrecautions during ServicingA. Parts identified by the # symbol are critical for safety.Replace only with part number specified.B. In addi

2011/04/22 17-14 A1DN5CA.fmPARTS LIST [LD190EM2 (Serial No.: DS2)]Mechanical PartsPRODUCT SAFETY NOTE: Products marked with a # have special character

2011/04/22 17-15 A1DN5EL.fmElectrical PartsPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before repl

19MD311B/F7(A1DN4UH)(Serial No.: DS1)2011040719MD311B/F7(A1DN4UH)(Serial No.: DS1)Different parts from the original model LD190SS2(DS1)Ref. No. Descri

18-1 FL11.8REVREVISION HISTORYChassis FL11.8• 2011-02-07 LD190SS2 (Serial No. : DS1) added• 2011-04-11 19MD301B/F7 (Serial No. : DS1) added• 2011-04

FL11.8COMCOMPARISON LIST OF MODEL NAMEChassis FL11.8LD190SS2 (DS1) A1DN2UH19MD301B/F7 (DS1) A1DN0UHLD190EM2 (DS1) A1DN1UH(DS2) A1DN5UH19MD311B/F7 (DS1