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GDM-F520(E)

5

Failre

+B failure

Horizontal / Vertical Deflection failure,
Thermal protector

ABL protector

HV failure

Aging / Self Test

Out of scan range

Power LED

Amber

→

Off

(0.5 sec)

(0.5 sec)

Amber

→

Off

(1.5 sec)

(0.5 sec)

Amber

→

Off

(0.5 sec)

(1.5 sec)

Amber

→

Off

→

Amber

→

Off

(0.25 sec)

(0.25 sec)

(0.25 sec)

(1.25 sec)

Amber

→

Off

→

Green

→

Off

(0.5 sec)

(0.5 sec)

(0.5 sec)

(0.5 sec)

Green (OSD indication)

Aging Mode (Video Aging) :

During Power Save, press MENU button for longer than 2 second.

Self Test (OSD Color Bar)

:

During Power Save, push up Control button for longer than 2 second.

Reliability Check Mode

:

During Power Save, push down Control button for longer than 2 second.

GDM-F520(E)

6

MODE AT PRODUCTION

MODE 1

MODE 2

MODE 3

MODE 4

RESOLUTION

640 X 480

1600 X 1200

1920 X 1440

1920 X 1440

CLOCK

25.175 MHz

229.500 MHz

341.000 MHz

297.000 MHz

 — HORIZONTAL —
H-FREQ

31.469 kHz

106.250 kHz

128.485 kHz

112.500 kHz

usec

usec

usec

usec

H. TOTAL

31.778

9.412

7.783

8.889

H. BLK

6.356

2.440

2.152

2.424

H. FP

0.636

0.279

0.457

0.485

H. SYNC

3.813

0.837

0.622

0.754

H. BP

1.907

1.325

1.073

1.185

H. ACTIV

25.422

6.972

5.630

6.465

 — VERTICAL —
V. FREQ (HZ)

59.940 Hz

85.000 Hz

84.977 Hz

75.000 Hz

lines

lines

lines

lines

V. TOTAL

525

1250

1512

1500

V. BLK

45

50

72

60

V. FP

10

1

1

1

V. SYNC

2

3

3

3

V. BP

33

46

68

56

V. ACTIV

480

1200

1440

1440

 — SYNC  —
INT(G)

NO

NO

NO

NO

EXT (H/V) /POLARITY

YES N/N

YES P/P

YES P/P

YES N/P

EXT (CS) /POLARITY

NO

NO

NO

NO

INT/NON INT

NON INT

NON INT

NON INT

NON INT

2000.8.9 VER.

GDM-F520(E)

7

1-1. Cabinet Assembly Removal .................................

1-1

1-2. A2 Board (C Block) Removal ..............................

1-2

1-3. A2 Board, US Board Removal .............................

1-3

1-4. Bezel, H2 Board, Magnetic Sensor Removal .......

1-4

1-5. D Board Removal ................................................

1-5

1-6. Service Position ....................................................

1-6

1-7. Picture Tube Removal...........................................

1-7

1-8. Harness Location .................................................

1-9

................

2-1

......................................................

3-1

4-1. Block Diagrams ....................................................

4-1

4-2. Frame Schematic Diagram ....................................

4-4

4-3. Circuit Boards Location ........................................

4-5

4-4. Schematic Diagrams and Printed Wiring

Boards ...................................................................

4-6

(1) Schematic Diagram of A2 Board .........................

4-8

(2) Schematic Diagrams of D (a, b, c) Board ....

4-10

(3) Schematic Diagram of DA Board ........................

4-14

(4) Schematic Diagram of H2 Board .........................

4-16

(5) Schematic Diagram of L2 Board .........................

4-18

(6) Schematic Diagram of N Board ............................

4-20

(7) Schematic Diagram of US Board ..........................

4-22

4-5. Semiconductors ....................................................

4-24

..............................................

5-1

5-1. Chassis .................................................................

5-2

5-2. Picture Tube .........................................................

5-3

5-3. Packing Materials .................................................

5-4

...............................

6-1

GDM-F520(E)

1-1

1

B

B

A

A

C

C

Two screws
(+BVTP 4 x 16)

6

Slide the EMI shield in the direction
of arrow     and remove four claws.

7

EMI shield 

5

Three screws
(+BVTT 4 x 8)

4

Four screws
(+BVTT 4 x 8)

Two claws

3

Push the upper side of the cabinet assembly
in the direction of arrow    , disconnect claws, 
then remove the cabinet assembly
lifting it up in the direction of arrow    .

Bezel

EMI shield

Cabinet assembly

Cabinet assembly

Bezel

Push in the tip of a screwdriver
about 10mm to unlock the claw.

22