Sony Sdm-s51 User manual

SERVICE MANUAL

SPECIFICATIONS

SDM-S51

TFT LCD Color Computer DISPLAY

US Model

Canadian Model

AEP Model

LCD panel Panel type: a-Si TFT Active Matrix

Picture size: 15.0 inch

Input signal format RGB operating frequency*

Horizontal: 28 - 60 kHz

Vertical: 48 - 75 Hz

Resolution Horizontal: Max.1024 dots

Vertical: Max.768 lines

Input signal levels RGB video signal

0.7 Vp-p, 75Ω, positive

SYNC signal

TTL level, 2.2 k ,

positive or negative

(Separate horizontal and vertical,

or composite sync)

0.3 Vp-p, 75Ω, negative

(Sync on green)

Power requirements 100 - 240 V, 50 - 60 Hz,

Max. 0.56A

DC input DC 12 V (supplied AC adapter)

Power consumption Max. 25 W

Operating temperature 5 - 35 °C

Ω

Dimensions (width/height/depth)

Display (upright):

Approx. 387 330 175 mm

(15

7inches)

(with stand)

Approx. 387 281 48 mm

(15

×11

inches)

(without stand)

Mass Approx. 3.7 kg ( 8 lb 3 oz) (with

stand)

Approx. 2.9 kg (6 lb 5 oz)

(without stand)

Plug & Play DDC2B

Accessories See page 7.

* Recommended horizontal and vertical timing condition

Horizontalsyncwidthdutyshouldbemorethan4.8%oftotal

horizontal time or 0.8 µs, whichever is larger.

Horizontal blanking width should be more than 2.5 µsec.

Vertical blanking width should be more than 450 µsec.

Design and specifications are subject to change without notice.

××

SDM-S51(E) 2

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all

exposed metal parts to any exposed metal part having a return to chassis,

must not exceed 0.5 mA (500 microamperes).

Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT-

540A. Follow the manufacturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital

multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or

battery-operated AC voltmeter. The “limit” indication is 0.75 V, so

analog meters must have an accurate low-voltage scale. The Simpson 250

and Sanwa SH-63Trd are examples of a passive VOMs that are suitable.

Nearly all battery operated digital multimeters that have a 2 V AC range

are suitable. (See Fig. A)

After correcting the original service problem, perform the following safety

checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly-soldered

connections. Check the entire board surface for solder splashes and

bridges.

2. Check the interboard wiring to ensure that no wires are “pinched” or

contact high-wattage resistors.

3. Check that all control knobs, shields, covers, ground straps, and

mounting hardware have been replaced. Be absolutely certain that you

have replaced all the insulators.

4. Look for unauthorized replacement parts, particularly transistors, that

were installed during a previous repair. Point them out to the customer

and recommend their replacement.

5. Look for parts which, though functioning, show obvious signs of

deterioration. Point them out to the customer and recommend their

replacement.

6. Check the line cords for cracks and abrasion. Recommend the

replacement of any such line cord to the customer.

7. Check the B+ and HV to see if they are specified values. Make sure your

instruments are accurate; be suspicious of your HV meter if sets always

have low HV.

8. Check the antenna terminals, metal trim, “metallized” knobs, screws, and

all other exposed metal parts for AC Leakage. Check leakage as

described right.

Fig. A. Using an AC voltmeter to check AC leakage.

1.5 k

Ω

0.15 µFAC

Voltmeter

(0.75 V)

To Exposed Metal

Parts on Set

Earth Ground

SAFETY CHECK-OUT

SDM-S51(E) 3

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 ADJUST-

MENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE

IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES

WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IM-

PROPER OPERATION IS SUSPECTED.

AVERTISSEMENT!!

NE JAMAIS METTRE SOUS TENSION QUAND LA BOBINE DE

DEMAGNETISATION EST ENLEVÉE.

ATTENTION AUX COMPOSANTS RELATIFS À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET UNE

MARQUE !SONT CRITIQUES POUR LA SÉCURITÉ. NE LES

REMPLACER QUE PAR UNE PIÈCE PORTANT LE NUMÉRO

SPECIFIÉ.LESRÉGLAGES DECIRCUITDONTL’IMPORTANCEEST

CRITIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT

IDENTIFIÉS DANS LE PRÉSENT MANUEL. SUIVRE CES

PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE

COMPOSANTS CRITIQUES, OU LORSQU’UN MAUVAIS

FONCTIONNEMENT EST SUSPECTÉ.

SDM-S51(E) 4

POWER SAVING FUNCTION

This monitor meets the power-saving guidelines set by VESA,

ENERGY STAR, and NUTEK. If the monitor is connected to a

computer or video graphics board that is DPMS (Display Power

Management Signaling) compliant, the monitor will automatically

reduce power consumption as shown below.

SDM-S51

* When your computer enters the active off mode, the input signal is

cut and NO INPUT SIGNAL appears on the screen. After 20 seconds,

the monitor enters the power saving mode.

** deep sleep is the power saving mode defined by the Environmental

Protection Agency.

Power mode Power consumption 1(power)

indicator

normal

operation 25 W (max.) green

active off*

(deep sleep)** 3 W (max.) orange

power off 3 W (max.) off

SDM-S51(E) 5

AUTOMATIC PICTURE QUALITY ADJUSTMENT FUNCTION

When the monitor receives an input signal, it automatically

matches the signal to one of the factory preset modes stored in the

monitor,smemory to provide a high quality picture at the center

of the screen. (See Appendix for a list of the factory preset

modes.)

For input signals that do not match one of the factory preset

modes, the automatic picture quality adjustment function of this

monitor automatically adjusts the picture position, phase, and

pitch, and ensures that a clear picture appears on the screen for

any timing within themonitor,s frequency range (horizontal: 28 -

60kHz , vertical:48 - 75 Hz ).

Consequently, the first time the monitor receives input signals

that do not match one of the factory preset modes, the monitor

may take a longer time than normal for displaying the picture on

the screen. This adjustment data is automatically stored in

memory so that next time, the monitor will function in the same

way as when the monitor receives the signals that match one of

the factory preset modes.

In all modes as above, if the picture is adjusted, the adjustment

data is stored as a user mode and automatically recalled whenever

the same input signal is received.

Note

While the automatic picture quality adjustment function is activated, only

the (power) switch will operate.

SDM-S51(E) 6

1. DISASSEMBLY

1-1. Back Cabinet and TFT Panel Removal ................ 1-1

1-2. Keyboard Mount Removal ................................... 1-2

1-3. Inverter Mount Removal ...................................... 1-3

1-4. I/F Board Removal ............................................... 1-4

1-5. TFT Panel Removal .............................................. 1-5

2. ADJUSTMENTS

2-1. Functional Alignment (1) ..................................... 2-1

2-2. Functional Alignment (2) ..................................... 2-2

2-3. Table 1&2 ............................................................ 2-3

2-4. Timing Specification ............................................ 2-4

2-5. W/B Alignment Procedure.................................... 2-5

3. DIAGRAMS

3-1. Circuit Boards Location........................................ 3-1

TABLE OF CONTENTS

Section Title Page Section Title Page

4. EXPLODED VIEWS

4-1. Chassis ................................................................. 4-2

4-2. Packing Materials ................................................. 4-3

5. ELECTRICAL PARTS LIST ............................... 5-1

SDM-S51(E) 1-1

SECTION 1

DISASSEMBLY

1-1. BACK CABINET AND TFT PANEL REMOVAL

1Four screws

(+PVTP 4x12)

2Back cabinet

3TFT panel

SDM-S51(E) 1-2

1-2. KEYBOARD MOUNT REMOVAL

2Four screws

(+PVTP 3x10)

1Screw

(+PWH 3x4)

3Keyboard mount

SDM-S51(E) 1-3

1-3. INVERTER MOUNT REMOVAL

1Two screws

(+PWH 3x4)

3Two screws

(+PWH 3x4)

5Inverter mount

2Inverter cover

6CN1

6CY2

6CN2

4Inverter shield

SDM-S51(E) 1-4

1-4. I/F BOARD REMOVAL

1Three screws

(+PWH 3x4)

2I/F cover

3Three screws

(+PWH 3x4)

3Two screws

(+PWH 3x4)

6I/F board mount

5CN302A

5CN201

5CN501

4Two connector screws

SDM-S51(E) 1-5

1-5. TFT PANEL REMOVAL

1Four screws

(+PVTP 4x12)

2TFT panel

SDM-S51(E) 2-1

SECTION 2

ADJUSTMENTS

2-1. FUNCTIONAL ALIGNMENT (1)

•Procedures of how to go to service mode.

1. Hold “C” and“B”

key power on, SDM-S51 goes into service mode.

2. Press “MENU” key-----ODS display → contigulation → RGB Reset → ΟΚ → contigulation → Color Temp.

3. Press “-” key to go to second page’s late icon.

4. Press “OK” key-----service menu display.

5. Select one of features.

6. Press “MENU” key to exit OSD.

7. Power OFF then ON again, monitor go to normal mode.

If you would like to enter service mode again, performing the above procedures cycle.

Note

1. N/A means “Not applied”.

2. This service menu only provides both Configuration & Sync slice functions.

This other were used for design engineering. There is no guarantee of using those N/A functions.

PERFORM

1 RGB RESET

(N/A)

INITIAL EE PRM

ANALOG

CONFIGUR ATION

CHIPS

SYNC SLICE

EXIT

(N/A)

2 COLOR TEMP

INITIAL EE PROM

CLEAR ETI TIME

EEPROM TEST

EXIT

9300K

6500K

5000K

EXIT

SUB-BRIGHTNESS

SUB-CONTRAST

EXIT

Off

SDM-S51(E) 2-2

2-2. FUNCTIONAL ALIGNMENT (2)

This paper documents the functional alignment (Used

Color meter) procedure of Sony LCD monitor

SDM-S51.

•Equipm ent

Computer: PC workstation with Windows 95

Installed PS/2 mouse is required

Software: KSi Engineering alignment software tool

Color meter:

Option

Signal generator: Option

Cable: Special RS232 interface cable

•Setup

1. Copy ECS software <ALIGN.EXE> into a new PC

directory.

2. Prepare timing & pattern data for signal generator

according to Sony’s timing specifications.

3. Prepare timing files for <ALIGN.EXE>.

4. Connect monitor interface cable between flat panel

monitor and PC com port.

5. Connect monitor video cable to signal generator.

6. Put Topcon 50cm from the monitor; Point it

perpendicularly at the center of the display; Achieve

the best focus through the eyepiece.

7. Enclose the monitor and Topcon in a light-shield

chamber.

8. Set up [SERVICE MODE] of the monitor.

•Download

In order to enhance productivity, a software utility is

provided to download default data to LCD monitor. The

default data includes color balance data and geometry

timing data.

•Operation

1. Execute software <ALIGN.EXE>.

2. Click on ‘Setup’menu.

3. Select ‘Monitor’type as ‘Sony SDM-S81’.

4. Select ‘COM PORT’according to hardware connection.

5. Click <OK> to save the new setup configuration.

6. Quit this application and Re-enter to make the new

settings effective.

•On Screen Adjustment

1. Click on the ‘Monitor’icon; an virtual monitor panel

would show up.

2. On entry, the software tries to establish a communication

link with the monitor. The monitor internal DACs

are read and shown on screen sliders. A ‘CONNECT’

icon would show up on the lower left corner of the

dialog screen.

3. An error message would pop up should communication

fail. A ‘BREAK’icon would show up on the dialog

screen. If this happens, check the hardware setup,

communication cable, and the connection.

•Warm up time

Allow 30 minutes warm up time before doing any adjust-

ment.

•Color Adjustm ent

1. 9300K color adjustment

--Center adjustment--

a. Click ‘Color Temperature’as ‘9300’.

b. Apply 40% IRE white video field, primary mode.

c. Make sure ‘backlight’register data is 0 (100%).

d. Click ‘Refresh’.

Refer to table 1 for default data for color

adjustment.

e. Adjust ‘sub_brt_B’to achieve color temperature.

Refer to table 2 for specification.

f. Click ‘Save this color’for a 9300K color save.

2. 5000K color adjustment

a. Click ‘Color Temperature’as ‘5000’.

b. Repeat alignment procedure as 9300 steps b-f.

3. 6500K color adjustment

a. Click ‘Color Temperature’as ‘6500’.

b. Repeat alignment procedure as 9300 steps b-f.

•Geometry Adjustment

Connect the personal computer which has alignment

data.

2. Click ‘Refresh’(inside Geometry Register Box).

3. Adjust ‘Pitch’for optimum screen performance.

4. Adjust ‘Phase’for optimum screen performance.

5. Adjust ‘H position’to make the screen center

horizontally.

6. Adjust ‘V position’to make the screen center vertically.

7. Repeat steps 3-6 for best picture performance.

8. Click ‘Save Geometry’to perform a user timing mode

save.

9. Repeat step 1-7 for each of the user present timings.

SDM-S51(E) 2-3

2-3. TABLE1 & 2

Table 1: Default data for analog color adjustment

Color 9300K 6500K 5000K

Brightness (G) 50 30 50

Contrast (G) 70 70 70

Sub-Brt-R 30 33 37

Sub-Brt-G 32 32 32

Sub-Brt-B 26 18 12

Sub-Cont-R 128 128 128

Sub-Cont-G 128 128 128

Sub-Cont-B 128 128 128

Table 2: Specifications for color adjustment

Color x y Y (35% IRE)

9300 0.2838 0.2981 10 nit

6500 0.3132 0.3297 10 nit

5000 0.3450 0.3580 10 nit

Tole ±0.003 ±0.003 ±0.7

Y: Luminance measurements are in cd/m

SDM-S51(E) 2-4

2-4. TIMING SPECIFICATION

PRESET MODE MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 MODE 7 MODE 8

SIGNAL MODE VESA 60Hz MAC 13”VESA 75Hz VESA 85Hz VESA 70Hz VESA 60Hz VESA 75Hz VESA 85Hz

RESOLUTION 640 X 480 640 X 480 640 X 480 640 X 480 720 X 400 800 X 600 800 X 600 800 X 600

DOT CLOCK 25.175 MHz 30.240 MHz 31.500 MHz 36.000 MHz 28.350 MHz 40.000 MHz 49.500 MHz 56.250 MHz

HORIZONTAL usec usec usec usec usec usec usec usec

H. TOATL 31.778 28.571 26.667 23.111 31.746 26.400 21.333 18.631

H. SYNC 3.813 2.116 2.032 1.556 2.540 3.200 1.616 1.138

H. BP 1.907 3.175 3.810 2.222 3.175 2.200 3.232 2.702

H. ACTIV 25.422 21.164 20.317 17.778 25.397 20.000 16.162 14.222

VERTICAL msec msec msec msec msec msec msec msec

V. TOTAL 16.683 15.000 13.333 11.764 14.254 16.579 13.333 11.756

V. SYNC 0.064 0.086 0.080 0.069 0.095 0.106 0.064 0.056

V. BP 1.049 1.114 0.427 0.578 1.079 0.607 0.448 0.503

V. ACTIV 15.253 13.714 12.800 11.093 12.698 15.840 12.800 11.179

H/V POLARITY N/N N/N N/N N/N N/P P/P P/P P/P

PRESET MODE MODE 9 MODE 10 MODE 11 MODE 12 MODE 13

SIGNAL MODE PMAC 16”VESA 60Hz VESA 70Hz VESA 75Hz 75Hz

RESOLUTION 832 X 624 1024 X 768 1024 X 768 1024 X 768 1024 X 768

DOT CLOCK 57.285 MHz 65.000 MHz 75.000 MHz 78.750 MHz 94.500 MHz

HORIZONTAL usec usec usec usec usec

H. TOATL 20.110 20.677 17.707 16.660 14.561

H. SYNC 1.117 2.092 1.813 1.219 1.016

H. BP 3.910 2.462 1.920 2.235 2.201

H. ACTIV 14.524 15.754 13.653 13.003 10.836

VERTICAL msec msec msec msec msec

V. TOTAL 13.413 16.666 14.272 13.328 11.765

V. SYNC 0.060 0.124 0.106 0.050 0.044

V. BP 0.744 0.600 0.513 0.466 0.524

V. ACTIV 12.549 15.880 13.599 12.795 11.183

H/V POLARITY N/N N/N N/N P/P P/P

MODE 14 MODE 15 MODE 16

PMAC19”MAC WS

1024 X 768 1152 X 870 1152 X 900

80.000 MHz 100.000 MHz 92.940 MHz

usec usec usec

16.600 14.560 16.182

1.200 1.280 1.377

2.200 1.440 2.087

12.800 11.520 12.395

msec msec msec

13.346 13.322 15.163

0.050 0.048 0.065

0.498 0.568 0.502

12.749 12.667 14.564

N/N N/N N/N

VESA

SDM-S51(E) 2-5

PRESET MODE MODE 17 MODE 18 MODE 19 MODE 20 MODE 21 MODE 22

SIGNAL MODE WS VESA 85Hz VESA 60Hz VESA 75Hz VESA 85Hz

RESOLUTION 1152X 900 1280X 960 1280X 960 1280X 1024

DOT CLOCK 105.590 MHz 108.000 MHz 148.500 MHz 108.000 MHz 135.000 MHz 157.500 MHz

HORIZONTAL usec usec usec usec usec usec

H. TOATL 13.941 16.667 22.636 15.630 12.504 10.971

H. SYNC 0.909 1.037 1.077 1.037 1.067 1.016

H. BP 1.970 2.889 1.508 2.296 1.837 1.422

H. ACTIV 10.910 11.852 8.620 11.852 9.481 8.127

VERTICAL msec msec msec msec msec msec

V. TOTAL 13.146 16.667 11.764 16.661 13.329 11.761

V. SYNC 0.112 0.050 0.035 0.047 0.038 0.033

V. BP 0.460 0.600 0.547 0.594 0.475 0.483

V. ACTIV 12.547 16.000 11.171 16.005 12.804 11.235

H/V POLARITY N/N P/P P/P P/P P/P P/P

VESA 60Hz

1280X 1024 1280X 1024

SDM-S51(E) 2-6

2-5. W/B ALIGNMENT PROCEDURE

A. Measurement Condition:

- Measurement point: Center of screen

- Measurement distance: 50 cm

- Measurement Angle: 90Åã

B. Measurement equipment:

- Color Analyzer: Minolta CS-1000 or equivalent

- Signal Generator: VG-828D or equivalent

C. Alignment Procedure:

Alignment Procedure Parameter Setting & Specification

1. Aging: more than 30 minutes Burn-in mode: press "BRT"+"OK" then "Power ON"

2. Enter to "Service Mode" Service mode: press " "+" " then "Power ON"

3. RGB reset MaintainConfigurationRGB Reset

4. Initial Data Setting: S51: S81:

a. Brightness: 50 a. Brightness: 50

b. Contrast: 70 b. Contrast: 70

c. Sub-BRT (R/G/B): 128 c. Sub-BRT (R/G/B): 26

d. Sub-CONT (R/G/B): 50 d. Sub-CONT (R/G/B): 128

5. Input gray raster pattern 35 IRE (1024*768, 60K/75Hz) 30 IRE (1280*1024, 80K/75Hz)

6. Adjust White Balance (9300K, 6500K & 5000K) and Luminance

(10 nits @ SONY CS-1000) by Sub-BRT 9300K 6500K 5000K Tolerance

x 0.2838 0.3132 0.3450 }0.003

Remark: In normally, adjust G for Luminance (Y), adjust R for x and adjust

B for y. y 0.2981 0.3297 0.3580 }0.003

Y 10 10 10 }0.7

7. All mode recall Select OSD

"ALL

RESET"

function

All mode recall:

press"CONTRA

ST"+"OK" then

"Power ON"

SDM-S51(E) 3-1

3-1. CIRCUIT BOARDS LOCATION

SECTION 3

DIAGRAMS

Inverter mount

Keyboard mount

I/F mount

SDM-S51(E) 4-1

SECTION 4

EXPLODED VIEWS

• Items with no part number and no

description are not stocked because they

are seldom required for routine service.

• The construction parts of an assembled

part are indicated with a collation number

in the remark column.

• Items marked " * " are not stocked since

they are seldom required for routine

service. Some delay should be anticipated

when ordering these items.

The components identified !marked are

critical for safety.

Replace only with the part number specified.

Les composants identifiés par la marque

sont critiques pour la sécurité.

Ne les remplacer que par une pièce portant

le numéro spécifié.

SDM-S51(E) 4-2

REF.NO. PART NO. DESCRIPTION REMARK

4-1. CHASSIS 1 4-087-927-01 BEZEL ASSY(WHITE)

4-087-930-01 BEZEL ASSY(BLACK)

2 1-904-691-11 LCD PANEL

3 1-761-556-11 I/F BOARD MOUNT

4 1-761-554-11 KEYBOARD MOUNT

5 1-761-549-11 INVERTER MOUNT

6 4-087-928-01 STAND ASSY(WHITE)

4-087-931-01 STAND ASSY(BLACK)

7 4-087-919-01 COVER, REAR(WHITE)

4-087-920-01 COVER, REAR(BLACK)

8 4-087-926-01 CABINET ASSY(WHITE)

4-087-929-01 CABINET ASSY(BLACK)

PWH3 x4

B2.6 x5

PSW4 x10

PVTP4 x12

P4 x10

PTP3 x8

PWH3 x 4

PWH

3 x4

PWH

3 x4

PWH

3 x6

PVTP

3 x10

PWH

3 x4

K3 x8

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Sony SDM-S51 User manual