9. Focus Adjustment

Purpose: Set the optimum Focus.

Symptom of Misadjustment: If Focus Adjustment is incorrect, blurred images are shown on the display.

Test Point

Adj. Point

Mode

Input

 

 

 

 

 

 

 

 

---

Focus Control

---

Monoscope

 

 

 

 

Tape

M. EQ.

 

Spec.

 

 

 

 

 

 

---

Pattern Generator

See below

 

 

 

 

Note: Focus VR --- FBT (Sub CBA),

FBT = Fly Back Transformer

1.Operate the unit more than 30 minutes.

2.Face the unit to the East and degauss the CRT using a degaussing coil.

3.Input the monoscope pattern.

4.Adjust the Focus Control on the FBT to obtain a clear picture.

10. H. Position Adjustment

Purpose: To obtain correct horizontal position of screen image.

Symptom of Misadjustment: H. position may not be properly displayed.

Test Point

Adj. Point

Mode

Input

 

 

 

 

 

 

 

 

---

[CH. o / p]

---

Monoscope

buttons

 

 

 

 

 

 

 

Tape

M. EQ.

 

Spec.

 

 

 

 

 

 

 

 

---

Pattern Generator

 

---

 

 

 

 

1.Enter the Service mode. (See page 1-7-1.) Press [8] button on the remote control unit and select H-P mode.

2.Input monoscope pattern.

3.Press [CH. o / p] buttons on the remote control unit so that the left and right side of the monoscope pattern are equal to each other.

11. V. Shift Adjustment

Purpose: To obtain correct vertical position of screen image.

Symptom of Misadjustment: If V. position is incorrect, vertical position of image on the screen may not be properly displayed.

Test Point

Adj. Point

Mode

Input

 

 

 

 

 

 

 

 

 

 

---

[CH. o / p]

---

Monoscope

buttons

 

 

 

 

 

 

 

 

 

Tape

M. EQ.

Spec.

 

 

 

 

 

 

---

Pattern Generator

---

1.Enter the Service mode. (See page 1-7-1.) Press [9] button on the remote control unit and select V-P mode. (Press [9] button then display will change to V-P and V-S).

2.Input monoscope pattern.

3.Press [CH. o / p] buttons on the remote control unit so that the top and bottom of the monoscope pattern are equal to each other.

12. V. Size Adjustment

Purpose: To obtain correct vertical height of screen image.

Symptom of Misadjustment: If V. Size is incorrect, vertical height of image on the screen may not be properly displayed.

Test Point

Adj. Point

Mode

Input

 

 

 

 

 

 

 

 

 

 

---

[CH. o / p]

---

Monoscope

buttons

 

 

 

 

 

 

 

 

 

Tape

M. EQ.

Spec.

 

 

 

---

Pattern Generator

90±5%

1.Enter the Service mode. (See page 1-7-1.) Press [9] button on the remote control unit and select V-S mode. (Press [9] button then display will change to V-P and V-S).

2.Input monoscope pattern.

3.Press [CH. o / p] buttons on the remote control unit so that the monoscope pattern is 90±5% of display size and the circle is round.

1-7-5

T2202EA

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Image 25
Magnavox MWC24T5 Focus Adjustment, 10. H. Position Adjustment, 11. V. Shift Adjustment, 12. V. Size Adjustment