Magnavox MWC24T5 service manual Power Supply Block Diagram, IC1601

Page 36

CAUTION !

 

 

 

 

 

 

 

 

NOTE:

 

 

 

 

 

 

 

 

The voltage for parts in hot circuit is measured using

Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.

 

 

 

 

 

 

 

 

hot GND as a common terminal.

If Main Fuse (F1601) is blown , check to see that all components in the power supply

 

 

 

 

 

 

 

 

CAUTION ! : For continued protection against risk of fire,

circuit are not defective before you connect the AC plug to the AC power supply.

 

 

 

 

 

 

 

 

replace only with same type 4 A, 125V fuse.

Otherwise it may cause some components in the power supply circuit to fail.

4A 125V ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.

 

 

 

 

 

 

T1601

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CN1602

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

1

+B

 

TO CRT/H.V.

 

4A 125V

 

 

 

3

 

 

 

 

 

 

 

 

 

 

2

+B

 

BLOCK DIAGRAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

+26V

CN2502

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W1601

F1601

L1601

D1603

D1606

 

 

 

11

 

 

Q1606

 

 

Q1609

 

 

 

 

 

 

4A/125V

 

 

 

 

 

 

 

 

 

 

+5.7V REG.

 

 

 

 

 

 

 

BRIDGE

Q1601

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LINE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FILTER

RECTIFIER

SWITCHING

6

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DG601

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+33V

CN1601

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DEGAUSSING

 

 

 

 

 

 

12

 

Q1607

 

 

 

 

 

 

 

 

M+12V

COIL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TIMER+5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AL+5V

 

 

PS1601

 

 

 

 

 

16

 

 

Q1613

 

 

 

 

 

 

 

 

P-ON+12V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P-ON+8V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q1614

 

 

 

 

 

P-ON+9V

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

P-ON+5V(4)

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

P-ON+5V(2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P-ON+5V(3)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

IC1682

 

 

 

 

 

 

 

 

1-10-7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q1681

+5V REG.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

13

 

Q1688

SW +5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC1601

 

 

 

SW +5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ERROR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLTAGE DET

 

 

 

 

 

 

 

 

 

+5.7V-CTRL

 

TO TV PROCESS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

1

 

 

 

 

 

 

 

 

 

 

BLOCK DIAGRAM

 

 

 

 

 

 

 

 

 

 

 

 

 

Q1221

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P-DOWN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q1602

3

2

VR1601

 

 

 

 

 

 

 

P-ON-H

 

TO SYSTEM

 

 

 

 

 

+B ADJ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DG-ON-H

 

CONTROL/SERVO

 

 

 

 

 

 

 

 

FEED

 

 

 

 

 

 

 

DVD-MAIN-POWER

 

BLOCK DIAGRAM

 

 

 

 

 

 

Q1604

BACK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUB CBA

 

 

 

 

 

DVD MAIN

 

 

 

 

 

 

 

 

 

Q1605

 

 

 

 

Q2611

 

CN1

 

 

CN1A CBA UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14 EV+9V

 

14

 

 

 

 

 

 

 

 

 

 

 

CN1602

CN2502

Q2610

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13 EV+9V

 

13

EV+9V

 

 

 

 

 

 

 

 

 

 

14 DVD+9V

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 DVD-ON+5V

12

DVD-ON+5V

 

 

 

 

 

 

 

 

 

 

10 EV+4V

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q2612

 

 

 

11 DVD-ON+3.3V

11

DVD-ON+3.3V

 

 

 

 

 

 

 

 

 

 

11 EV+4V

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q2617

IC3604

 

 

10

EV+3.3V

 

 

 

 

 

 

RL1601

 

 

 

 

 

 

 

 

10 EV+3.3V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SW CTL

9

EV+3.3V

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

EV+1.2V

 

3

EV+1.2V

 

 

 

 

 

 

 

 

 

 

 

 

Q2615

 

 

 

2

EV+1.2V

 

2

 

 

 

 

 

 

 

 

 

Q1603

 

CN1301

CN2503

 

 

 

 

1

EV+1.2V

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15 PWRCON

 

15

PWRCON

 

 

 

 

 

 

 

 

 

 

17 DVD-MAIN-POWER

17

 

 

 

IC2602

 

 

 

 

 

 

 

 

 

 

 

IC3603

 

Q2618

 

 

 

 

TO DVD SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

+1.2V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

2

 

 

 

CONTROL / SERVO

 

 

 

 

 

 

 

 

 

 

 

 

SW CTL

 

 

 

T2202BLP

 

 

 

 

 

 

 

 

 

 

 

 

REG.

 

 

 

 

BLOCK DIAGRAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HOT

 

COLD

 

 

 

 

 

 

 

 

 

 

<DVD SECTION>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q2616

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAIN CBA

 

 

 

 

 

 

 

 

 

 

Power Supply Block Diagram

Page 35 Page 37
Image 36
Page 35 Page 37
Contents Illustration at right Main SectionSuffix B Rating LabelImportant Safety Notice Main Section Specifications DVDDescription Condition Unit Nominal Limit PTD 1-NOR TIT.1 CHP.1VCR Hi-Fi AudioAmsp Pmsp Laser Beam Safety Precautions Location Top of DVD mechanismThis DVD player uses a pickup that emits a laser beam E7NLSPImportant Safety Precautions Safety Precautions for TV CircuitReading should Test ALL ExposedTvdvdnisp Precautions during Servicing Safety Check after Servicing Measuring Method Power onClearance Distance Leakage Current TestInstructions for Connectors How to Remove / Install Flat Pack-ICStandard Notes for Servicing Circuit Board IndicationsMachine Masking Flat Pack-IC Tape TweezersWith Soldering Iron Installation With Iron WirePin 1 of the Flat Pack-IC Is indicated by a mark PresolderInstructions for Handling Semi- conductors Ground for Human BodyGround for Workbench IncorrectHow to Enter the Service Mode How to Enter the Service ModePreparation for Servicing PreparingCabinet Disassembly Instructions Disassembly FlowchartDisassembly Method RemovalReference Notes in the Table Fig. D1Tray Chassis Unit Anode Cap CRT CBADVD Mechanism DVD Main CBA Unit Electrical Adjustment Instructions How to make service remote control unitDC 120V +B Adjustment Test Equipment RequiredF0 Adjustment GeneralR2583 CH. o / p buttons Video Cut-off Adjustment Size AdjustmentPincushion Adjustment White Balance Adjustment Sub-Brightness AdjustmentSmpte Focus Adjustment 10. H. Position Adjustment11. V. Shift Adjustment 12. V. Size AdjustmentHead Switching Position Adjustment Purity AdjustmentGreen RED Blue Convergence Adjustment Magnet RB Magnet RB-GHOW to Initialize the TV/DVD/VCR DVD SectionTV/VCR Section Firmware Renewal Mode Appearance shown in *1 of Fig. b is described as followsAppearance State 10-1 T2202BLS Main CBAVideo Block Diagram 10-2T2202BLV Audio Block Diagram 10-3T2202BLA Diagram 10-4T2202BLH TV Process Block Diagram 10-5 T2202BLTCRT/H.V. Block Diagram 10-6T2202BLCRT Power Supply Block Diagram IC160110-8 T2202BLSDDigital Signal Process Block Diagram 10-9 T2202BLDSchematic Diagrams / CBA’S and Test Points Standard NotesX7TNSC How to read converged lines Test Point InformationArea D3 Area B1Main 1/6 & Sensor Schematic Diagram TV/VCR Section T2202SCM1Main 2/6 Schematic Diagram TV/VCR Section T2202SCM2Main 3/6 Schematic Diagram TV/VCR Section T2202SCM3Main 4/6 Schematic Diagram TV/VCR Section T2202SCM4Main 5/6 & Junction-A Schematic Diagram TV/VCR Section T2202SCM5Main 6/6 Schematic Diagram TV/VCR Section T2202SCM6Sub 1/2 Schematic Diagram TV/VCR Section T2202SCSUB1Sub 2/2 Schematic Diagram TV/VCR Section 11-10T2202SCSUB2 CRT Schematic Diagram TV/VCR Section Function & Junction-B Schematic Diagram TV/VCR SectionT2202SCCRT T2202SCF 11-11DVD Main 1/3 Schematic Diagram DVD Section 11-12 T2202SCD1DVD Main 2/3 Schematic Diagram DVD Section 11-13 T2202SCD2DVD Main 3/3 Schematic Diagram DVD Section 11-14 T2202SCD3Main CBA Top View TV/VCR Section BHF300F01011ABHF300F01011B 11-15 BT1200F01013Main CBA Bottom View TV/VCR Section 11-16 BT1200F01013Sub CBA Top View TV/VCR Section 11-17 BT1200F01023-ASub CBA Bottom View TV/VCR Section 11-18 BT1200F01023-A11-19 BT1200F01023-B BT1200F01023-D BT1200F01023-E BT1200F01023-C 11-20Waveforms 12-1X7TWF 13-1 T2202WITWiring 13-2 T2202WIDSystem Control Timing Charts Mode SW LD-SWSymbol Symbol Loading StatusChart 14-214-3 14-4 STILL/SLOW- Play14-5 Tray Close ~ Play / Play ~ Tray Open ≥ 4.5 V, L ≤ 1.0 Pin Signal Function Pin Signal FunctionIC PIN Function Descriptions IC1201 TV/VCR Micro Controller ICPB-H OUT YCA-SDAOUT YCA-CS OUT YCA-SCLLead Identifications 16-1 T2202LEExploded Views CabinetDVD Mechanical Parts 17-1 T2202CEXPacking 17-2 T2203PEXMechanical Parts List V501 and L551 CombinationCRT Warning Label Location CRT Type No. CRT Warning LabelElectrical Parts List 20060325 19-1 T2202EL20060325 19-2 T2202EL CCD3DKA0B82120060325 19-3 T2202EL ICS20060325 19-4 T2202EL Switches 20060325 19-5 T2202EL20060325 19-6 T2202EL WT1 Lead Clamper20060325 19-7 T2202EL CRT CBA 20060325 19-8 T2202ELMWC24T5 T2202UC
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