Hitachi CP-S317 Manuel utilisateur

SM0524

CPX327(C3XM3)

EDS3170(C3S3)

EDX3270(C3XM3)

EDS3170A(C3S3E)

EDX3270A(C3XM3)

ED-X3250AT(C3X3ET)

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

Multimedia LCD Projector

January 2003 Digital Media Division

SERVICE MANUAL

Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury, harmful

radiation and materials, various measures are provided in this Hitachi Multimedia LCD Projector. Be sure

to read cautionary items described in the manual to maintain safety before servicing.

Caution

1. When replacing the lamp, avoid burns to your fingers. The lamp becomes very hot.

2. Never touch the lamp bulb with afinger or anything else. Never drop it or give it a shock. They may cause

bursting of the bulb.

3. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of power

unit (main), when turning on the projector.

4. Do not touch the exhaust fan, during operation.

5. The LCD module assembly is likely to be damaged. If replacing the LCD module assembly, do not hold

the FPC of the LCD module assembly.

6. Use the cables which are included with the projector or specified

Service Warning

1. Features --------------------------------------------------- 2

2. Specifications--------------------------------------------- 2

3. Names of each part ------------------------------------ 5

4. Adjustment ------------------------------------------------ 7

5. Troubleshooting---------------------------------------- 13

6. Service points ------------------------------------------ 18

7. Block diagram ------------------------------------------ 30

8. Connector connection diagram -------------------- 32

9. Wiring diagram ----------------------------------------- 34

10.Basic circuit diagrams------------------------------- 40

11.Disassembly diagram--------------------------------- 59

12.Replacement parts list-------------------------------- 61

13.RS-232C communication---------------------------- 64

Contents

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CPS317(C3S3)

EDX3280AT(C3XM4ET)

1. Features

1,500 ANSI lumens, 2.7kg(6lbs)

Full connectivity

Easy and flexible keystone adjustment

My screen

Wide angle lens

Low noise

2. Specifications

Liquid crystal

panel

Lamp

Video input

RGB input /

output

Drive system

Panel size

Number of pixels

System

Level

Analog RGB

Sync.

Input

Output

Audio

Speaker output

Power supply

Power consumption

Dimensions

Weight

Temperature range

Accessories

TFT active matrix

CPS317/EDS3170 /EDS3170A CPX327/EDX3270/EDX3270A

0.7 inches

800 (H) × 600 (V) 1024 (H) × 768 (V)

150W UHB

Composite

S-video

NTSC, PAL(BGDHI), SECAM, PAL-M, PAL-N, NTSC4.43, PAL60

Remote control transmitter × 1

RGB cable × 1

Video/Audio cable × 1

USB cable × 1

0.7Vp-p (75 termination)

TTL level

200mVrms, 47k

200mVrms, output impedance 1k

1.0W (mono)

AC100~120V/2.7A, AC220~240V/1.3A

240W

295 (W) × 87.5 (H) × 231 (D) mm

2.74kg (6.04lbs)

Operation : 0~35°C

Storage : -20~60°C

1.0 0.1Vp-p (75 termination)

0.3 0.1Vp-p (

PAL/SECAM burst signal, 75 termination

)

Y : 1.0 0.1Vp-p (75 termination)

C : 0.286 0.1Vp-p (NTSC burst signal, 75 termination)

POWER cord × 3

Battery × 2

Carrying bag × 1 (CP Models Only)

User's manual (with Safety Instructions)× 1

Component

PB/PR: 0.7 0.1Vp-p (75 termination)

Y : 1.0 0.1Vp-p (75 termination)

CB/CR: 0.7 0.1Vp-p (75 termination)

CPS317, EDS3170, EDS3170A, CPX327, EDX3270, EDX3270A

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Features

EDX3280AT, EDX3250AT

Specification

EDX3280AT, (1,200 lumens, 2.7kg(6lbs) EDX3250AT)

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Difference with the conventional model

The base model of EDX3280AT is EDX3270A. The liquid crystal panel is the main change from EDX3270A.

The main differences with the base model are described in the following table.

EDX3280AT

ED-X3250AT (C3X3E-T)

Difference with the conventional model

The base model of ED-X3250AT is ED-X3270A. The liquid crystal panel is mainly changed from ED-X3270A.

The main differences with the base model are described in the following table.

The main differences with the conventional model

No. Contents

Difference

Note

ED-X3270A ED-X3250AT

1 Features

Brightness

1,500 ANSI lumens

(A catalog may have 1,700

ANSI lumens)

Brightness

1,200 ANSI lumens

2 Specifications Accessories:

Power cord 1

Accessories:

Power cord 2

3 Parts list

LCD/LENS PRISM ASS'Y:

UX09286

Others

LCD/LENS PRISM ASS'Y:

UX09287

Others

Only difference is described. Please refer to a ED-X3270A service guide except the above-mentioned

difference.

Lamp (Option Lamp: DT00521(ED-X3250AT))

HIGH VOLTAGE

HIGH TEMPERATURE

HIGH PRESSURE

Before replacing the lamp, check the serial number of the replacement lamp bulb (sold separately:

DT-00521 for ED-X3250AT)

, then contact your local dealer. Before replacing the lamp, turn off the

power, and unplug the power cord, then wait at least 45 minutes, in order to ensure that the

lamp is properly cooled. Removing the lamp bulb while it is still hot could cause burns, or cause

the lamp bulb to burst.

3. Names of each part

Parts names

STANDBY/ONINPUTKEYSTONERESET

LANP

TENP

POWER

Zoom ring

Focus ring

Air fil er

Eleva or bu on

KEYSTONE bu on

STANDBY/ON bu on

INPUT bu on

RESET bu on

STANDBY/ONINPUT KEYSTONERESET

LANP

TENP

POWER

MENU bu on

LAMP LED

TEMP LED

POWER LED

Remo e sensor

AC power inle

S-VIDEO IN por

RGB IN 1 and 2 por s

AUDIO IN R and L por s

VIDEO IN por

CONTROL por

RGB OUT por

USB por

COMPONENT VIDEO por

Power swi ch

Remote control transmitter

STANDBY/ON bu on

VIDEO bu on

MENU bu on

RGB bu on

BLANK bu on

SEARCH bu on

VOLUME bu on

MUTE bu on

KEYSTONE bu on

ASPECT bu on

AUTO bu on

MAGNIFY bu on

KEYBOARD bu ons

FREEZE bu on

POSITION bu on

ESC bu on

,,,

Cursor bu ons

RESET bu on

ENTER bu on

VIDEO

ASPECT

HOME

END MUTE

PAGE DOWN

KEYSTONEFREEZE

OFF

MENUPOSITION

ENTER

ESC RESET

PAGE UP VOLUME

MAGNIFY

AUTO BLANK

RGB SEARCH

STANDBY/ON

4-2 Ghost adjustment

Signals for internal adjustment

30%

112/255

0/255

Adjustment procedure

1. Use DAC-P - GHOST - R: in the Adjustment menu

to adjust so that R color ghost is at a minimum.

(Set the adjustment value to default, and then raise the

value. When a ghost appears to the left of a vertical

line, reduce the value by 2 steps. :CPS317/EDS3170 only)

2. In the same way, use DAC-P - GHOST-G: in the

Adjustment menu to adjust so that G color ghost is

at a minimum.

3. In the same way, use DAC-P - GHOST-B: in the

Adjustment menu to adjust so that B color ghost is

at a minimum.

4. Adjustment

4-1 Before adjusting

4-1-1 Selection of adjustment

When any parts in the table 4-1 are changed, choose

the proffer adjusting items with the chart.

Table 4-1: Relation between the replaced part and adjustment

Replaced

part

Ghost

(Chap.4-2)

Flicker

(Chap.4-3)

PSIG/NRSH

(Chap.4-4)

White

balance

(Chap.4-5)

Color

uniformity

(Chap.4-6)

Dichroic

optics unit

LCD/LENS

prism

assembly

PWB

assembly

drive

Lamp

unit

assembly

Adjustment

means need for adjustment.

means not need for adjustment.

means recommended.

4-1-2 Setting of condition before adjustment

1. Before starting adjustment, warm up the projector

for about 10 minutes.(Blank white)

2. Set Zoom Wide to Max. And project an image with

more than 40 inches in diagonal size.

3. Normalizing the video adjustment.

(Press the [MENU] button of the Remote control

transmitter to display the MAIN menu, and then press

the [RESET] button. And select the [DEFAULT]. Next,

open MAIN menu and press the [ ] key to display

the PICTURE1 menu, then press the [RESET] key to

set to [DEFAULT].)

*note :The MAIN and PICTURE1 menu is not reset

with no signal.

4. Set the normal at OPT-WHISPER in the menu.

5. Reset KEYSTONE correction.

6. Perform all adjustments from the Adjustment menu.

Perform the following operations to display the

Adjustment menu.

a. Press the [MENU] button of the Remote control

transmitter (the Setup menu will appear).

b. Next, press the [RESET] button one time. And

press the [RESET] button again for 5 seconds

or more (the Adjustment menu will appear).

4-4

PSIG-G adjustment (vertical stripe adjustment)

Signals for internal adjustment Adjustment procedure

1. Make this adjustment after completing the

adjustment in 4-3 Flicker adjustment.

2. Use DAC-P - PSIG - G: in the Adjustment menu to

adjust so that the vertical lines spaced every 6 or

12 dots are as inconspicuous as possible.

192/255

160/255

128/255

96/255

64/255

32/255

4-4-1

PSIG-B adjustment (vertical streaks adjustment)

Signals for internal adjustment

30%

112/255

0/255

Adjustment procedure

1. Make this adjustment after completing the

adjustment in 4-3 Flicker adjustment.

2. Use DAC-P - PSIG - B: in the Adjustment menu to

adjust so that the vertical streaks on the upper of

window pattern.

CPS317/EDS3170/EDS3170A

4-3 Flicker adjustment

(V.COM adjustment)

Signals for internal adjustment Adjustment procedure

1. Make this adjustment after completing the

adjustment in 4-2 Ghost adjustment.

2. Use DAC-P - V.COM - R: in the Adjustment menu

to adjust so that the flicker at the center of the

screen is less than the flicker at the periphery.

(When the flicker is about the same across the

whole screen, adjust so that the flicker at the

center of the screen is somewhat less than

elsewhere.)

3. In the same way, use DAC-P - V.COM-G: in the

Adjustment menu to adjust the G color flicker.

4. In the same way, use DAC-P - V.COM-B: in the

Adjustment menu to adjust the B color flicker.

4-5

White balance adjustment (visual inspection)

Preparations

1. Perform these adjustments after the PSIG

adjustment described in Section 4-4.

2. Reset gamma correction before adjustment.

Place the cursor on [GAMMA] in the Adjustment

menu, press the [RESET] key and select

[DEFAULT].

Adjustment procedure

1. First, adjust the G color.

2. Select GAMMA, SUB-CONTRAST, and G: in the

Adjust menu. If the background is white solid,

press the [MENU SELECT] key on the Remote

control transmitter to change to [G] monochrome in

the 28-tone grayscale.

3. Adjust GAMMA, SUB-CONTRAST, and G: in the

Adjust menu so that brightness of 28 steps is best.

4. Don’t adjust GAMMA, SUB-BRIGHT, and G: in the

Adjust menu. Because we want to keep the best

contrast ratio.

5. Then adjust colors R and B.

6. Select GAMMA, SUB-CONTRAST, and G: in the

Adjust menu. If the background is white solid,

press the [MENU SELECT] key on the Remote

control trasmitter to change to [W] monochrome in

the 28-tone grayscale.

7. Adjust GAMMA, SUB-BRIGHT, R: and B: in the

Adjust menu so that low-brigtness white balance is

best.

8. Adjust GAMMA, SUB-CONTRAST, R: and B: in

the Adjust menu so that middle-brightness white

balance is best.

9. Repeat steps 7 to 8 above, and adjust so that

brightness white balance of 28 steps is best.

4-4

NRSH adjustment (vertical stripe adjustment)

Signals for internal adjustment

192

/255

168

/255

144

/255

120

/255

Adjustment procedure

1. Make this adjustment after completing the

adjustment in 4-3 Flicker adjustment.

2. Use DAC-P - NRSH - R: in the Adjustment menu to

adjust so that the vertical lines spaced every 6

dots are as inconspicuous as possible.

(Reduce the adjustment value when black stripes

appear in the 2nd or 3rd tone from the black side.

Note that when the adjustment value is lowered,

white stripes may appear in the 2nd or 3rd tone

from the bright side. Should this happen, adjust so

that the stripes are as inconspicuous as possible.)

3. In the same way, use DAC-P - NRSH - G: in the

Adjustment menu to adjust vertical stripes of G color.

4. In the same way, use DAC-P - NRSH - B: in the

Adjustment menu to adjust vertical stripes of B color.

CPX327/EDX3270/EDX3270A

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Ce manuel convient aux modèles suivants

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