Magnavox MWC24T5 Standard Notes for Servicing, Circuit Board Indications, Pb Lead Free Solder

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STANDARD NOTES FOR SERVICING

Circuit Board Indications

1.The output pin of the 3 pin Regulator ICs is indicated as shown.

Top View	Bottom View
Out	Input
Out	In

2.For other ICs, pin 1 and every fifth pin are indicated as shown.

5

Pin 1

10

3.The 1st pin of every male connector is indicated as shown.

Pin 1

Instructions for Connectors

1.When you connect or disconnect the FFC (Flexible Foil Connector) cable, be sure to first disconnect the AC cord.

2.FFC (Flexible Foil Connector) cable should be inserted parallel into the connector, not at an angle.

FFC Cable

Connector

CBA

* Be careful to avoid a short circuit.

Pb (Lead) Free Solder

Pb free mark will be found on PCBs which use Pb free solder. (Refer to figure.) For PCBs with Pb free mark, be sure to use Pb free solder. For PCBs without Pb free mark, use standard solder.

Pb free mark

How to Remove / Install Flat Pack-IC

1. Removal

With Hot-Air Flat Pack-IC Desoldering Machine:

1.Prepare the hot-air flat pack-IC desoldering machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. S-1-1)

Fig. S-1-1

2.Remove the flat pack-IC with tweezers while applying the hot air.

3.Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

4.Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

CAUTION:

1.The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC.

2.Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape

1-4-1

TVDVDN_SN

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Contents Rating Label Illustration at rightMain Section Suffix BImportant Safety Notice Main Section PTD 1-NOR TIT.1 CHP.1 SpecificationsDVD Description Condition Unit Nominal LimitAmsp Pmsp VCRHi-Fi Audio E7NLSP Laser Beam Safety PrecautionsLocation Top of DVD mechanism This DVD player uses a pickup that emits a laser beamTest ALL Exposed Important Safety PrecautionsSafety Precautions for TV Circuit Reading shouldTvdvdnisp Precautions during Servicing Leakage Current Test Safety Check after ServicingMeasuring Method Power on Clearance DistanceCircuit Board Indications Instructions for ConnectorsHow to Remove / Install Flat Pack-IC Standard Notes for ServicingWith Soldering Iron MachineMasking Flat Pack-IC Tape Tweezers Presolder InstallationWith Iron Wire Pin 1 of the Flat Pack-IC Is indicated by a markIncorrect Instructions for Handling Semi- conductorsGround for Human Body Ground for WorkbenchPreparing How to Enter the Service ModeHow to Enter the Service Mode Preparation for ServicingRemoval Cabinet Disassembly InstructionsDisassembly Flowchart Disassembly MethodFig. D1 Reference Notes in the TableTray Chassis Unit DVD Mechanism Anode CapCRT CBA DVD Main CBA Unit Test Equipment Required Electrical Adjustment InstructionsHow to make service remote control unit DC 120V +B AdjustmentR2583 CH. o / p buttons Video F0 AdjustmentGeneral Pincushion Adjustment Cut-off AdjustmentSize Adjustment Smpte White Balance AdjustmentSub-Brightness Adjustment 12. V. Size Adjustment Focus Adjustment10. H. Position Adjustment 11. V. Shift AdjustmentGreen RED Blue Head Switching Position AdjustmentPurity Adjustment Magnet RB Magnet RB-G Convergence AdjustmentTV/VCR Section HOW to Initialize the TV/DVD/VCRDVD Section Appearance State Firmware Renewal ModeAppearance shown in *1 of Fig. b is described as follows Main CBA 10-1 T2202BLST2202BLV Video Block Diagram10-2 T2202BLA Audio Block Diagram10-3 T2202BLH Diagram10-4 10-5 T2202BLT TV Process Block DiagramT2202BLCRT CRT/H.V. Block Diagram10-6 IC1601 Power Supply Block DiagramT2202BLSD 10-810-9 T2202BLD Digital Signal Process Block DiagramX7TNSC Schematic Diagrams / CBA’S and Test PointsStandard Notes Area B1 How to read converged linesTest Point Information Area D3T2202SCM1 Main 1/6 & Sensor Schematic Diagram TV/VCR SectionT2202SCM2 Main 2/6 Schematic Diagram TV/VCR SectionT2202SCM3 Main 3/6 Schematic Diagram TV/VCR SectionT2202SCM4 Main 4/6 Schematic Diagram TV/VCR SectionT2202SCM5 Main 5/6 & Junction-A Schematic Diagram TV/VCR SectionT2202SCM6 Main 6/6 Schematic Diagram TV/VCR SectionT2202SCSUB1 Sub 1/2 Schematic Diagram TV/VCR SectionT2202SCSUB2 Sub 2/2 Schematic Diagram TV/VCR Section11-10 T2202SCF 11-11 CRT Schematic Diagram TV/VCR SectionFunction & Junction-B Schematic Diagram TV/VCR Section T2202SCCRT11-12 T2202SCD1 DVD Main 1/3 Schematic Diagram DVD Section11-13 T2202SCD2 DVD Main 2/3 Schematic Diagram DVD Section11-14 T2202SCD3 DVD Main 3/3 Schematic Diagram DVD Section11-15 BT1200F01013 Main CBA Top View TV/VCR SectionBHF300F01011A BHF300F01011B11-16 BT1200F01013 Main CBA Bottom View TV/VCR Section11-17 BT1200F01023-A Sub CBA Top View TV/VCR Section11-18 BT1200F01023-A Sub CBA Bottom View TV/VCR Section11-19 BT1200F01023-B BT1200F01023-E BT1200F01023-C 11-20 BT1200F01023-DX7TWF Waveforms12-1 T2202WIT 13-113-2 T2202WID WiringSymbol Loading Status System Control Timing ChartsMode SW LD-SW Symbol14-2 Chart14-3 STILL/SLOW- Play 14-414-5 Tray Close ~ Play / Play ~ Tray Open IC1201 TV/VCR Micro Controller IC ≥ 4.5 V, L ≤ 1.0 Pin Signal FunctionPin Signal Function IC PIN Function DescriptionsOUT YCA-SCL PB-HOUT YCA-SDA OUT YCA-CS16-1 T2202LE Lead Identifications17-1 T2202CEX Exploded ViewsCabinet DVD Mechanical Parts17-2 T2203PEX PackingCRT Type No. CRT Warning Label Mechanical Parts ListV501 and L551 Combination CRT Warning Label Location20060325 19-1 T2202EL Electrical Parts ListCCD3DKA0B821 20060325 19-2 T2202ELICS 20060325 19-3 T2202EL20060325 19-4 T2202EL 20060325 19-5 T2202EL SwitchesWT1 Lead Clamper 20060325 19-6 T2202EL20060325 19-7 T2202EL 20060325 19-8 T2202EL CRT CBAT2202UC MWC24T5