Magnavox MWC24T5 How to read converged lines, Test Point Information, Area D3, Area B1

Models: MWC24T5

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LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:

1.CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE_A,_V FUSE.

ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE_A,_V.

2.CAUTION:

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

If Main Fuse (F1601) is blown, first check to see that all components in the power supply circuit are not defec- tive before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

3. Note:

1.Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since the drawings were prepared.

2.To maintain original function and reliability of repaired units, use only original replacement parts which are listed with their part numbers in the parts list section of the service manual.

4.Mode: SP/REC

5.Voltage indications for PLAY and REC modes on the schematics are as shown below:

 

< DVD Section >

 

< TV/VCR Section >

Unit: Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PLAY mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

2

 

3

 

 

 

 

1

 

2

 

3

 

 

PLAY mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.0

 

 

 

 

5.0

 

STOP mode

 

 

5.0

 

 

 

 

 

5.0

 

REC mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(2.5)

 

The same voltage for

 

 

(2.5)

DVD mode

The same voltage for

 

 

Indicates that the voltage

 

 

< 0 >

 

both PLAY & STOP modes

PLAY, REC & DVD

 

 

Indicates that the voltage

 

 

 

 

 

 

 

is not consistent here.

modes

 

 

is not consistent here.

6. How to read converged lines

 

 

 

 

1-D3

 

 

 

 

Distinction Area

3

AREA D3

1-B1

Line Number

 

 

(1 to 3 digits)

2

 

AREA B1

Examples:

 

 

 

 

 

1. "1-D3" means that line number "1" goes to the line number

1

1-D3

 

"1" of the area "D3".

 

 

 

 

2. "1-B1" means that line number "1" goes to the line number

A

B

C

D

"1" of the area "B1".

 

 

 

 

7. Test Point Information

 

 

 

 

: Indicates a test point with a jumper wire across a hole in the PCB.

 

 

: Used to indicate a test point with a component lead on foil side.

 

 

 

: Used to indicate a test point with no test pin.

 

 

 

 

: Used to indicate a test point with a test pin.

1-11-2

X7TN_SC

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Magnavox MWC24T5 service manual How to read converged lines, Test Point Information, Area D3, Area B1