Magnavox MWC24T5 Wartungshandbuch

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SERVICE MANUAL
Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded Views
I Parts List
When servicing the deck
mechanism, refer to MK14 Deck
Mechanism Section.
Deck Mechanism Part No.:
N2466FT
This service manual is for the MWC24T5
version B model, which is different from the
previous model. For MWC24T5 version B
model, a suffix “B” is printed on the rating label
on the back of the unit. Refer to the rating label
illustration at right.
Rating Label
Suffix "B"
24 COLOR
TV/DVD/VCR
MWC24T5
Seitenansicht 0
1 2 3 4 5 6 ... 81 82

Inhaltsverzeichnis

Seite 1 - SERVICE MANUAL

SERVICE MANUALMain SectionI SpecificationsI Preparation for ServicingI Adjustment ProceduresI Schematic DiagramsI CBA’sI Exploded ViewsI Parts ListWhe

Seite 2 - IMPORTANT SAFETY NOTICE

1-3-4 TVDVDN_ISPSafety Check after ServicingExamine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts

Seite 3 - MAIN SECTION

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

Seite 4 - SPECIFICATIONS

1-4-2 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 care

Seite 5 - < Hi-Fi AUDIO >

1-4-3 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 appli

Seite 6 - LASER BEAM SAFETY PRECAUTIONS

1-4-4 TVDVDN_SNInstructions for Handling Semi-conductorsElectrostatic breakdown of the semi-conductors may occur due to a potential difference caused

Seite 7 - IMPORTANT SAFETY PRECAUTIONS

1-5-1 T2203PFSPREPARATION FOR SERVICINGHow to Enter the Service ModeCaution 1:1. Optical sensors system are used for Tape Start and End Sensor on this

Seite 8

1-6-1 T2202DCCABINET DISASSEMBLY INSTRUCTIONS1. Disassembly FlowchartThis flowchart indicates the disassembly steps for the cabinet parts, and the CBA

Seite 9 - Precautions during Servicing

1-6-2 T2202DCReference Notes in the TableCAUTION!When removing the CRT, be sure to discharge the Anode Lead of the CRT with the CRT Ground Wire before

Seite 10 - Safety Check after Servicing

1-6-3 T2202DC[5] DVD Main CBA Unit[4] DVD Mechanism[2] Tray Chassis Unit(S-7)(S-7)Top Shield(S-8)(S-8)(S-8)[8] Deck Assembly(S-10)(S-9)(S-11)(S-11)(S-

Seite 11 - STANDARD NOTES FOR SERVICING

1-6-4 T2202DC[3] CRTAnode CapCRT CBA(S-4)(S-4)(S-4)(S-4)Fig. D3ADVD MechanismFig. D4View for AShort the three short lands by soldering.(Either of two

Seite 12

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

Seite 13 - Example :

1-6-5 T2202DCANODECRTGNDDVD MAIN CBA UNITFE HEADCYLINDER ASSEMBLYACE HEADASSEMBLYCAPSTANMOTORDECK ASSEMBLYTUNERMAIN CBASUB CBACRT CBATO SPEAKER TO SPE

Seite 14 - <Correct>

1-7-1 T2202EAELECTRICAL ADJUSTMENT INSTRUCTIONSGeneral Note: “CBA” is abbreviation for “Circuit Board Assembly.”Note: Electrical adjustments are requi

Seite 15 - PREPARATION FOR SERVICING

1-7-2 T2202EA2. Setting for CONTRAST, COLOR, TINT, V-TINT and SHARP Data ValuesGeneral1. Enter the Service mode. (See page 1-7-1.)2. Press [PICTURE] b

Seite 16 - 2. Disassembly Method

1-7-3 T2202EA4. Cut-off AdjustmentPurpose: To adjust the beam current of R, G, B, and screen voltage.Symptom of Misadjustment: White color may be redd

Seite 17 - [1] Rear Cabinet

1-7-4 T2202EA7. White Balance AdjustmentPurpose: To mix red, green and blue beams correctly for pure white. Symptom of Misadjustment: White becomes bl

Seite 18 - 1-6-3 T2202DC

1-7-5 T2202EA9. Focus AdjustmentPurpose: Set the optimum Focus.Symptom of Misadjustment: If Focus Adjustment is incorrect, blurred images are shown on

Seite 19 - View for A

1-7-6 T2202EA13. Head Switching Position AdjustmentPurpose: Determine the Head Switching Position during Playback.Symptom of Misadjustment: May cause

Seite 20 - 1-6-5 T2202DC

1-7-7 T2202EA15. Convergence AdjustmentPurpose: To obtain proper convergence of red, green and blue beams.Symptom of Misadjustment: If Convergence Adj

Seite 21 - Service mode:

1-8-1 T1202NTHOW TO INITIALIZE THE TV/DVD/VCRTo put the program back at the factory-default, initialize the TV/DVD/VCR as the following procedure.<

Seite 22 - Adjustment

1-9-1 T1202FWFIRMWARE RENEWAL MODE1. Turn the power on and press [SELECT] button on the remote control unit to put the TV/DVD/VCR into DVD mode. Then

Seite 23 - 6. H. Pincushion Adjustment

MAIN SECTION24″ COLOR TV/DVD/VCRMWC24T5TABLE OF CONTENTSSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Seite 24 - 8. Sub-Brightness Adjustment

1-10-1BLOCK DIAGRAMS < TV/VCR Section >T2202BLSSystem Control / Servo Block DiagramCONTROLHEADCL1402ACE HEAD ASSEMBLYMAIN CBASUB CBARF-SWT-REEL

Seite 25 - 12. V. Size Adjustment

1-10-2T2202BLVVideo Block DiagramLUMINANCESIGNAL PROCESSMAIN CBAVIDEO (R)-1 HEADVIDEO (L)-1 HEAD (DECK ASSEMBLY)VIDEO(R)-1VIDEO-COM1VIDEO(L)-1CL140112

Seite 26 - 14. Purity Adjustment

1-10-3Audio Block DiagramT2202BLARECAMP98AUTOBIAS11P-ON+5VP-ON+5VQ1871BIASOSCQ1872Q1873 (PB=ON)Q1874 (PB=ON)Q1875SWITCHINGD-REC OFF653EQAMPSP/LP-ONPRA

Seite 27 - 15. Convergence Adjustment

1-10-4Hi-Fi Audio Block DiagramT2202BLH5748 4713 146967R-CHINSELL-CHINSELNORSWSERIALDATADECODEROUTPUTSELECTVCOLPFL-CH BPFR-CHPNRPILOTDETCONTSTEREOPLLS

Seite 28 - < TV/VCR Section >

1-10-5TV Process Block DiagramT2202BLTX13013.58MHzCN1301SAWFILTERSF1001IC1301(CHROMA/DEFLECTION SIGNAL PROCESS)TU1001IFAGCSDASCLFSC17325IC1201(SYSTEM

Seite 29 - FIRMWARE RENEWAL MODE

1-10-6CRT/H.V. Block DiagramT2202BLCRTPULSE UPAMPTHERMALPROTECTION36715810796GREEN AMPBLUE AMPQ2503Q2502Q2501H.DRIVEQ2591 Q2571T2572AV-DRIVEH-DRIVED.Y

Seite 30 - T2202BLS

1-10-7Power Supply Block DiagramT2202BLPLINEFILTERBRIDGERECTIFIERT1601IC1601ERRORVOLTAGE DETW1601F16014A/125VL1601D1603 D1606DEGAUSSINGCOILCN1601DG

Seite 31 - Video Block Diagram

1-10-8BLOCK DIAGRAMS < DVD Section >DVD System Control / Servo Block DiagramT2202BLSD181716DVD-REMOTE19CN1AS DATACS545349DVD-REMOTEFP-CLKFP-DIN

Seite 32 - Audio Block Diagram

1-10-9Digital Signal Process Block DiagramT2202BLDC16D18A17B15DVD-LD 8CD-LD 10PD-MONI 7FS(+) 2FS(-) 3TS(+) 1TS(-) 4CN201CN201CN201IC201(SW)IC101 (MICR

Seite 33 - Hi-Fi Audio Block Diagram

1-11-1 X7TN_SCSCHEMATIC DIAGRAMS / CBA’S AND TEST POINTSStandard NotesWARNINGMany electrical and mechanical parts in this chassis have special charact

Seite 34 - TV Process Block Diagram

1-1-1 T1200SPSPECIFICATIONS*ˆ Mode---------SP mode unless otherwise specified* Test input terminal<Except Tuner>--------Video input (1 Vp-p)Audi

Seite 35 - CRT/H.V. Block Diagram

1-11-2 X7TN_SCLIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:1. CAUTION: FOR CONTINUED PROTECTION AGAINST R

Seite 36 - Power Supply Block Diagram

1-11-3Main 1/6 & Sensor Schematic Diagram < TV/VCR Section >T2202SCM1

Seite 37 - T2202BLSD

1-11-4T2202SCM2Main 2/6 Schematic Diagram < TV/VCR Section >

Seite 38 - DVD MAIN CBA UNIT

1-11-5T2202SCM3Main 3/6 Schematic Diagram < TV/VCR Section >

Seite 39 - Standard Notes

1-11-6Main 4/6 Schematic Diagram < TV/VCR Section >T2202SCM4

Seite 40 - Unit: Volts

1-11-7T2202SCM5Main 5/6 & Junction-A Schematic Diagram < TV/VCR Section >

Seite 41 - T2202SCM1

1-11-8T2202SCM6Main 6/6 Schematic Diagram < TV/VCR Section >NOTE:The voltage for parts in hot circuit is measured usinghot GND as a common term

Seite 42 - T2202SCM2

1-11-9 T2202SCSUB1Sub 1/2 Schematic Diagram < TV/VCR Section >

Seite 43 - T2202SCM3

1-11-10Sub 2/2 Schematic Diagram < TV/VCR Section >T2202SCSUB2

Seite 44 - T2202SCM4

1-11-11T2202SCCRTT2202SCFFunction & Junction-B Schematic Diagram < TV/VCR Section >CRT Schematic Diagram < TV/VCR Section >

Seite 45 - T2202SCM5

1-1-2 T1200SP< VCR >< TUNER >< NORMAL AUDIO> All items are measured across 8 Ω resistor at speaker output terminal.< Hi-Fi AUDIO

Seite 46 - T2202SCM6

1-11-12T2202SCD1DVD Main 1/3 Schematic Diagram < DVD Section >

Seite 47 - 1-11-9 T2202SCSUB1

1-11-13T2202SCD2DVD Main 2/3 Schematic Diagram < DVD Section >

Seite 48 - T2202SCSUB2

1-11-14T2202SCD3DVD Main 3/3 Schematic Diagram < DVD Section >

Seite 49 - T2202SCF

1-11-15V-OUTTP1401WF5TO SENSOR CBA(START-SENSOR)RF-SWTP1402WF1CTL-AMP-OUTTP1202WF3ENV.TP1403WF6+B ADJVR1601H-OUTTP1305WF9TO SENSOR CBA(END-SENSOR)Main

Seite 50 - T2202SCD1

1-11-16WF7PIN 49OF IC1401PIN 32OF IC1401PIN 9OF IC1401WF8WF4WF2PIN 10OF IC1401PIN 59OF IC1201WF16WF15PIN 58OF IC1201BT1200F01013Main CBA Bottom

Seite 51 - T2202SCD2

1-11-17R2583(H f0 Adjustment)+BTP2501TP2504GNDH SIZEVR2531PIN C.VR2530Sub CBA Top View < TV/VCR Section >BT1200F01023-A

Seite 52 - T2202SCD3

1-11-18WF11PIN 5CN2571Q2571CollectorWF10OF CN2503PIN18WF19WF20PIN2OF CN2DVD-YTP2513WF17DVD-CTP2512WF18Sub CBA Bottom View < TV/VCR Section >BT1

Seite 53 - Sensor CBA Top View

1-11-19WF13Q2502CollectorWF12Q2503CollectorWF14Q2501CollectorCRT CBA Top View < TV/VCR Section >CRT CBA Bottom View < TV/VCR Section >BT

Seite 54 - BT1200F01013

1-11-20Function CBA Top View < TV/VCR Section >Junction-B CBATop View< TV/VCR Section >BT1200F01023-CFunction CBA Bottom View < TV/VC

Seite 55 - BT1200F01023-A

WAVEFORMSX7TWF1-12-1WF2WF1WF5WF4WF8WF7WF3WF9WF11WF13WF14WF10WF15WF16WF12WF18WF17WF19WF20SPDIFSPDIF1V 0.10.1µsecInput: NTSC Color Bar Signal (wi

Seite 56

1-2-1 E7NLSPLASER BEAM SAFETY PRECAUTIONSThis DVD player uses a pickup that emits a laser beam.The laser beam is emitted from the location shown in th

Seite 57 - BT1200F01023-B

WIRING DIAGRAM < TV/VCR Section >T2202WIT1-13-112CRT CBAFOCUSSCREENGNDL551D.Y.HDVDCL2501ACL2501BMAIN CBASUB CBACN2501W1601CN160112345T2571FBTCL

Seite 58 - BT1200F01023-E

T2202WID1-13-2WIRING DIAGRAM < DVD Section >DVD MAIN CBA UNITCONTINUEWIRING DIAGRAM <TV/VCR SECTION>TO CN1CN30165GNDSL(-)SL(+)43SP(-)2S

Seite 59 - WAVEFORMS

1-14-1 X7T4HTISYSTEM CONTROL TIMING CHARTS< TV/VCR Section >Mode SW: LD-SWNote: EJ RS: Loading FWD (LM-FWD / REV “H”)RS EJ: Loading REV (LM

Seite 60 - T2202WIT

1-14-2 X7T4HTIChart 118 RF-SWF-AD( Internal Signal )C-DRIVEPB CTL66 C-F/RSTILL STILLFRAME ADVANCEROLLCOMPENSATION(DRUM SERVO)H-A-SW15 ROTAATThe fir

Seite 61 - T2202WID

1-14-3 X7T4HTIChart 218 RF-SWF-AD( Internal Signal )C-DRIVEPB CTL66 C-F/RSTILL STILLFRAME ADVANCEROLLCOMPENSATION(DRUM SERVO)H-A-SW15 ROTAATThe fir

Seite 62 - SYSTEM CONTROL TIMING CHARTS

1-14-4 X7T4HTIChart 3+100mS(NTSC)+620mS(PAL)1. EJECT (POWER OFF) -> CASSETTE IN (POWER ON) -> STOP(B) -> STOP(A) -> PLAY -> RS -> FS

Seite 63 - 1-14-2 X7T4HTI

1-14-5 X7T4HTIChart 4PIN NO.LD-SWCL/SSLD-CONTC-DRIVE"Z"ONONC-F/RDRUMROTATIONP-ON-HAUDIO-MUTED-REC-HD-PB-HEJAURSSFSMTLFBALSB18266316544DISPLA

Seite 64 - 1-14-3 X7T4HTI

1-14-6 X7T4HTI< DVD Section >Tray IN(TL221)Sled Drive(TP303)Disc Drive(TP301)Focus Drive(TP304)Tracking Drive(TP302)0V3.3V0V1.65V0V0V0V1.65V1.65

Seite 65 - 1-14-4 X7T4HTI

1-15-1 T2203PINIC PIN FUNCTION DESCRIPTIONSIC1201 (TV/VCR Micro Controller IC)“H” ≥ 4.5 V, “L” ≤ 1.0 VPin No.IN/OUTSignal NameFunction1 IN LD-SW Loadi

Seite 66 - 1-14-5 X7T4HTI

1-15-2 T2203PIN66 OUT C-F/RCapstan Motor FWD/REV Control Signal67 OUTD-REC/PB-HDelayed Record/Playback Control Signal68 OUT YCA-SDA YCA Serial Data69

Seite 67

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

Seite 68 - IC PIN FUNCTION DESCRIPTIONS

1-16-1 T2202LELEAD IDENTIFICATIONS80518110013050315481EC60214041201806142222112011101S D G16 91 81712431: A2: K3: E4: C1231: R2: A

Seite 69

1-17-1 T2202CEXEXPLODED VIEWSCabinetV501-1L551Details for L551 and surrounding partsSHINWHA TAPE SGT-730(WHITE)SHINWHA TAPE SGT-730(BLACK)V501-2CRT CB

Seite 70 - LEAD IDENTIFICATIONS

1-17-2 T2203PEXPackingFRONTS4S1X1TapeX4X2X3S3S6S7S2Packing Tape

Seite 71 - EXPLODED VIEWS

20060325 1-18-1 T2202CAMECHANICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before rep

Seite 72 - 1-17-2 T2203PEX

20060325 1-19-1 T2202ELELECTRICAL PARTS LISTPRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before rep

Seite 73 - MECHANICAL PARTS LIST

20060325 1-19-2 T2202ELC1428 CHIP CERAMIC CAP.(1608) B K 0.01µF/50V CHD1JK30B103C1429 ELECTROLYTIC CAP. 47µF/6.3V M H7 CE0KMAVSL470C1430 CHIP CERAMIC

Seite 74 - ELECTRICAL PARTS LIST

20060325 1-19-3 T2202ELD1224 LED SIR-563ST3F P QPQPS1R563STD1229 ZENER DIODE MTZJT-7715B QDTB00MTZJ15D1230 ZENER DIODE MTZJT-7715B QDTB00MTZJ15D1231 Z

Seite 75 - 20060325 1-19-2 T2202EL

20060325 1-19-4 T2202ELR1202 CHIP RES. 1/16W G 22k Ω RRXAGR5Z0223R1203 CHIP RES. 1/16W G 470 Ω RRXAGR5Z0471R1204 CHIP RES. 1/16W G 1.5k Ω RRXAGR5Z0152

Seite 76 - 20060325 1-19-3 T2202EL

20060325 1-19-5 T2202ELR1608 CARBON RES. 1/4W J 180k Ω RCX4JATZ0184R1609# CARBON RES. 1/4W J 1.5 Ω RCX4JATZ01R5R1610 CARBON RES. 1/4W J 1.8k Ω RCX4JAT

Seite 77 - 20060325 1-19-4 T2202EL

20060325 1-19-6 T2202ELSENSOR CBAMPS CBASUB CBATL6 SCREW B-TIGHT D3X8 BIND HEAD+ GBJB3080TP1202 PCB JUMPER D0.6-P16.0 JW16.0TTP1301 PCB JUMPER D0.6-P9

Seite 78 - 20060325 1-19-5 T2202EL

1-3-2 TVDVDN_ISPAlso, because the picture tube shields and mounting hardware perform an X-radiation protection function, they must be correctly in pla

Seite 79 - SENSOR CBA

20060325 1-19-7 T2202ELL2701 PCB JUMPER D0.6-P5.0 JW5.0TTRANSISTORSQ2201 TRANSISTOR 2SC2785(F) QQSF02SC2785Q2202 TRANSISTOR 2SC2785(F) QQSF02SC2785Q22

Seite 80 - 20060325 1-19-7 T2202EL

20060325 1-19-8 T2202ELCRT CBAFUNCTION CBA JUNCTION-A CBAJUNCTION-B CBAR3568# CARBON RES. 1/4W J 1.2 Ω RCX4JATZ01R2R3576 CARBON RES. 1/4W J 150 Ω RCX4

Seite 81 - JUNCTION-B CBA

MWC24T5T2202UC2006-04-06

Seite 82 - 2006-04-06

1-3-3 TVDVDN_ISPof the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the

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