Sony GDM-90W01T5 Service Manual

GDM-90W01T5

SERVICE MANUAL

SPECIFICATIONS

AEP Model

Chassis No. SCC-K49B-A

CHASSIS

COLOR GRAPHIC DISPLAY

GDM-90W01T5

POWER SAVING FUNCTION

This monitor is capable of three states of reduced power consumption. By sensing the absence of video signals and one or both sync signals coming from the host computer, it will reduce power consumption as follows.

Power consumption

state 1 Normal operation 2 Standby (1st state) 3 Suspend (2nd state) 4 Active-off (3rd state) 5 Power-off

DIAGNOSIS

Power consumption

≤ 200 W ≤ 140 W ≤ 15 W ≤ 8 W

0 W

Recovery time

– Approx. 3 sec. Approx. 3 sec. Approx. 10 sec. –

@ power saving indicator

Off Orange on Orange on Orange on Off

u power indicator

Green on Green on Green on Off Off

Failure HV, +B failure Horizontal/Vertical deflection failure, thermal

Power Saving LED

Off

Blink Amber

Power LED

Blink Amber

Off

protector ABL protector Aging/Self Test

Blink Amber

Off

Blink Amber

Amber (0.5 sec) → Off (0.5 sec) → Green (0.5 sec) → Off (0.5 sec) →

Aging Mode: Video aging During Power Save, press “OPTION” Key for longer than 2 seconds. Self Test: OSD color-bar indication During Power Save, press “CONTRAST+” Key for longer than 2 seconds. Self Test: OSD All White indication During Poewr Save, press “COLOR” key for longer than 2 seconds.

TIMING SPECIFICATION

PRIMARY MODE PRIMARY MODE AT PRODUCTION MODE1 MODE2 MODE3 MODE4 MODE5 MODE6 MODE7 MODE8 MODE9 RESOLUTION 640 X 480 1280 X 1024 1600 X 1200 1920 X 1080 1920 X 1080 1600 X 1024 1920 X 1200 720 X 400 1920 X 1035 CLOCK 25.175 MHz 135.000 MHz 202.500 MHz 159.840 MHz 216.023 MHz 170.447 MHz 245.480 MHz 28.322 MHz 74.250 MHz — HORIZONTAL — H-FREQ 31.469 kHz 79.976 kHz 93.750 kHz 67.500 kHz 84.384 kHz 81.320 kHz 95.000 kHz 31.469 kHz 33.750 kHz

µsec µsec µsec µsec µsec µsec µsec µsec µsec H. TOTAL 31.778 12.504 10.667 14.815 11.851 12.297 10.526 31.777 29.630 H. BLK 6.356 3.022 2.765 2.803 2.963 2.910 2.705 6.355 3.771 H. FP 0.636 0.119 0.316 0.200 0.222 0.188 0.261 0.636 0.593 H. SYNC 3.813 1.067 0.948 0.901 1.000 0.939 1.043 3.813 1.185 H. BP 1.907 1.837 1.501 1.702 1.741 1.784 1.401 1.907 1.993 H. ACTIV 25.422 9.481 7.901 12.012 8.888 9.387 7.821 25.422 25.859 — VERTICAL — V. FREQ(HZ) 59.940 Hz 75.025 Hz 75.000 Hz 60.000 Hz 72.000 Hz 76.000 Hz 76.000 Hz 70.087 Hz 60.000 Hz

lines lines lines lines lines lines lines lines lines V. TOTAL 525 1066 1250 1125 1172 1070 1250 449 562.5 V. BLK 45 42 50 45 92 46 50 49 45 V. FP 10113333125 V. SYNC 2 3 3 3 3 3 3 2 5 V. BP 33 38 46 39 86 40 44 35 35 V. ACTIV 480 1024 1200 1080 1080 1024 1200 400 517.5 — SYNC — INT(G) NO NO NO NO NO NO NO NO NO EXT(H/V)/POLARITY YES N/N YES P/P YES P/P YES N/N YES N/N YES N/N YES N/N YES N/P YES N/N EXT(CS)/POLARITY NO NO NO NO NO NO NO NO NO INT/NON INT NON INT NON INT NON INT NON INT NON INT NON INT NON INT NON INT INT

96.8.22 VER.

– 2 –

GDM-90W01T5

Section Title Page

1. GENERAL................................................................... 4

2. DISASSEMBLY

2-1. Cabinet Removal ................................................. 11

2-2. D Board Removal ................................................ 11

2-3. G Board Removal................................................. 12

2-4. A Board Removal................................................. 12

2-5. M Board Removal ................................................ 13

2-6. L Board Removal ................................................. 13

2-7. Service Position.................................................... 14

2-8. Harness Location

(1) D Block Side ....................................................... 14

(2) G Block Side ....................................................... 15

2-9. H1, H2 and J Boards Removal............................. 15

2-10. Picture Tube Removal ......................................... 16

3. SAFETY RELATED ADJUSTMENT............. 17

4. ADJUSTMENTS ...................................................... 18

Section Title Page

5. DIAGRAMS

5-1. Block Diagrams ................................................... 21

5-2. Frame Schematic Diagram .................................. 27

5-3. Circuit Boards Location ...................................... 29

5-4. Schematic Diagrams and Printed Wiring Boards ... 29

(1) Schematic Diagram of D Board .......................... 33

(2) Schematic Diagrams of G, GA, GB and

J Boards ........................................................... 37

(3) Schematic Diagrams of H1, H2, L and

M Boards ......................................................... 41

(4) Schematic Diagram of A Board .......................... 45

5-5. Semiconductors ................................................... 52

6. EXPLODED VIEWS

6-1. Chassis ................................................................. 54

6-2. Picture Tube ........................................................ 55

6-3. Packing Materials ................................................ 56

7. ELECTRICAL PARTS LIST ............................ 57

WARNING!! NEVER TURN ON THE POWER IN A CONDITION IN WHICH THE DEGAUSS COIL HAS BEEN REMOVED.

SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY SHADING AND MARK ¡ ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS SUSPECTED.

Note: Hand degauss

This model has an automatic earth magnetism correction function by using an earth magnetism sensor and a LCC coil. When using a hand degauss while monitor (LCC coil) is being operated, it sometimes gets magnetized, and the system may not work properly as a result.

must be used on stand-by or power-off condition.

– 3 –

The operating instructions mentioned here are partial abstracts from the Operating Instruction Manual. The page numbers of the Operating Instruction Manual remein as in the manual.

SECTION 1

GENERAL

– 4 – – 5 –

– 6 – – 7 –

– 8 – – 9 –

– 10 –

2-1. CABINET REMOVAL

Five screws

BV tapping screw M4 x 8)

Top cover

SECTION 2

DISASSEMBLY

Two screw covers (T)

Screw cover (S)

Six screws

Screw cover (S)

Cabinet

Nine screws

BV tapping screw M4 x 8)

BVTP

GDM-90W01T5

4 x 16)

2-2. D BOARD REMOVAL

Two screws (+ BVTP 3 x 10)

D board

Video shield

Two screws

BV tapping screw M4 x 6)

Two hooks

– 11 –

Open the D block in the direction of the arrow . and remove of the arrow .

GDM-90W01T5

2-3. G BOARD REMOVAL

Two screws (+- BV tapping screw M4 x 6)

Two screws (+BVTP 3 x 10)

Two screws (+ P SW screw M3 x 10)

G shield

Two screws (+BVTP 3 x 10)

G board

Open the G block in the direction of the arrow . and remove of the arrow .

2-4. A BOARD REMOVAL

Two hooks

Two printed circuit board holders

Two screws (+BVTP 3 x 10)

– 12 –

A borad

2-5. M BOARD REMOVAL

Two screws (+ BVTP Screw 3 x 8)

GDM-90W01T5

2-6. L BOARD REMOVAL

L board

M board

Two claws

– 13 –

GDM-90W01T5

2-7. SERVICE POSITION

CAUTION : SHORT

If the claw is hooked, opening and closing the board is impossible. Do not try to do it by force.

D,G boards

G board (Refer to 2-3.)

Rear shield

If the claw is hooked, opening and closing the board is impossible. Do not try to do it by force.

D board (Refer to 2-2.)

A board (Refer to 2-4.)

2-8. HARNESS LOCATION

The D and G blocks are not widely opened after the wires are properly arranged, as shown in the figure.

(1) D block side

D block

G block

– 14 –

+ 32 hidden pages

Sony GDM-90W01T5 Service Manual

GDM-90W01T5

POWER SAVING FUNCTION

DIAGNOSIS

TIMING SPECIFICATION

TABLE OF CONTENTS

GENERAL

2-1. CABINET REMOVAL

DISASSEMBLY

2-2. D BOARD REMOVAL

2-3. G BOARD REMOVAL

2-4. A BOARD REMOVAL

2-5. M BOARD REMOVAL

2-6. L BOARD REMOVAL

2-7. SERVICE POSITION

2-8. HARNESS LOCATION