EPSON PC750 Service Manual

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6HUYLFH 0DQXDO

6HUYLFH 0DQXDO6HUYLFH 0DQXDO

Color Digital Camera

EPSON PhotoPC-750Z

SEDC98002

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EPSON PhotoPC-750Z Revision A

CAUTION

PRECAUTIONS

There are cautionary notes throughout the text to help you avoid personal injury or equipment damage.

W ARNING

Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by a WARNING heading.

Always observe the measures listed below when performing repair or maintenance procedures.

Signals a precaution which, if ignored, could result in damage to equipment.

WARNING

1. Always disconnect the product from both the power source and host computer before performing any maintenance or repair procedure.

2. No work should be performed on the unit by persons unfamiliar with basic safety measures dictated for all electronics technicians in their line of work.

3. In performing testing described in this manual, do not connect the unit to a power source until instructed to do so. When the power supply cable must be connected, use extreme caution in working on the power supply and other electronic components.

CAUTION

1. Repairs on EPSON products should be performed only by an EPSON-certified repair technician.

2. Make certain that the source voltage is the same as the rated voltage liste d on the seri al number/rati ng plate. If the EPSON product has a pr imary AC rating different from the available power source, do not connect it to the power source.

3. Always verify that the EPSON product has been disconnected from the power source before removing or replacing printed circuit boards and/or individual chips.

4. To protect sensitive microprocessors and circuitry, use static discharge equipment, such as anti-static wrist straps, when accessing inter nal components.

5. Replace malfunctioning components only with those components recommended by the manufacturer; i ntroduction of second-source I Cs or other nonapproved components may damage the product and void any applicable EPSON warranty.

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EPSON PhotoPC-750Z Revision A

Revision Status

Revision Issued Date Description

Rev.A February 16, 1999 First Release

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EPSON PhotoPC-750Z Revision A

Table of Contents

Product Description

Features ... ....... ...... ....... ...... ...... ....... ............................................. ....... ...... ..... 7

Product Description................................................................................... 9

Control Panel........................................................................................... 16

Control Buttons........................................................................................ 18

Capturing Mode Indication ...................................................................... 19

Operation Specification . ...... ....... ...... ....... ...... ....... ...... ............................. 19

Cable Specification.................................................................................. 21

Options.................................................................................................... 22

Environmental Conditions ....................................................................... 22

Power...................................................................................................... 22

Safety and others .................................................................................... 22

Operating principles

Board Component ........................................................................................ 24

Out line of Operating Principles............................................................... 25

CA1 Board............................................................................................... 25

CA2 board............................................................................................... 26

ST1 Board............................................................................................... 26

SY1 Board............................................................................................... 27

TB1 Board............................................................................................... 28

TB2 Board............................................................................................... 28

Picture is blurry or out of focus................................................................ 36

Disassembly and Assembly

Overview ...................................................................................................... 38

Precautions ............................................................................................. 38

Tools ....................................................................................................... 39

Screws .................................................................................................... 39

Disassembly and Assembly .................................................................... 40

Cabinet Parts Removal ........................................................................... 41

SY1 Board, TB1 Board and FPC Unit Removal...................................... 42

CA1 Board Removal ............................................................................... 43

DEC Lens, PW1, CA2 Board, Cover Connector, Lens Unit and Holder Lens Removal 43

Assembly................................................................................................. 45

Installing parts to the (front) Cabinet....................................................... 45

Installing parts to the CA1 Board ............................................................ 46

Setting-Up the CA2 Board..................................... ....... ...... ..................... 48

ST1 Board Setting-Up............................................................................. 49

ST1 Board Setting-Up (2)........................................................................ 50

CA2 Board Setting-Up (2) ....................................................................... 50

Installing Parts to the CA1 Board (2)....................................................... 51

Connecting Boards.................................................................................. 51

Installing the Cabinets............................................................................. 56

Troubleshooting

Overview....................................................................................................... 30

The Camera has no power...................................................................... 31

LED red light blinks / No green light........................................................ 33

Shutter does not work ............................................................................. 33

Image is taken out of cross mark in the viewfinder (Not using LCD monitor) 34

Nothing appears on the Camera and Computer screen (All black)......... 34

Unable to transfer the image data to PC................................................. 35

No Images on the LCD (All black)........................................................... 35

Unable to use the Optional Compact Flash............................................. 36

Adjustment

Overview ...................................................................................................... 60

Getting Ready for Adjustment................................................................. 61

Initialization ............................................................................................. 63

Flange-back Adjustment ........................................................................ 64

AWB5100K Adjustment...................... ...... ....... ...... ....... ...... ..................... 65

Color Matrix Adjustment.......................................................................... 66

CCD Defect Detect Adjustment............................................................... 67

Uploading the Firmware.......................................................................... 67

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EPSON PhotoPC-750Z Revision A

Maintenance

Preventive Maintenance............................................................................... 71

Check Points ........................................................................................... 71

Appendix

Circuit Shematics.......................................................................................... 73

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PRODUCT DESCRIPTION

&+$37(5

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EPSON PhotoPC-750Z Revision A

1.1 Features

PhotoPC-750Z is a compact and high performance digital still camera equipped with 1.3 million pixels high resolution color CCD and built-in Color LCD view monitor. Following shows overview and characterist ics of this product.

[Intended User]

† Professional Users † Individual Users (Advanced or Intermediate Users) † For Business Users (For making reports with pictures)

[Recommended Usage]

† For making Home Pages for Web † For making proceedings with pictures † For making post cards with pictures † For making calendar with pictures

[Overview of product]

† 2-way lighting source LCD monitor

2 inches low temperature poly-silicon LCD monit or lit up by sunlight or a fluorenscent back light. Using sunlight, it leads the power saving.

† Available selection either skylight feature in bright sunlight /

Backlight in the indoor

† Energy Saving type LCD monitor. (unlike the surface type in the

previous models, 1 line fluorenscent type is applied)

† HyPicT mode

Providing a high quality image based on an EPSON original picture enhancement technology. Super high quality image by high image correction skill, equivalent to 2000K pixels CCD.

† Quick Shooti ng Mode:

Taking photos at intervals of under 2 seconds

† Variet y of Shooting Mode:

More available shooting modes than previous models.

† Direct Printing:

A4 direct printing just by connecting the camera and print e r without using PC.

† High resolution color CCD applied † 1.3 million pixels CCD sensor. 1/2.7 inches hig hly sensitive CCD

with complementary color filters.

† Optical 3x powered zooming † Equivalent to 35 mm

(Wide angle lens <Actual range: 34mm

∼105mm focal length on a 35mm camera.

∼ Telephoto lens: 35 mm film camera equivalent)

∼ 102 mm>

Product Description Features 7

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EPSON PhotoPC-750Z Revision A

[Product Characteristics] † High resolution:

4 x VGA (1280 x 960 pixels, 24-bit Color)

† CCD Sensor:

1/2.7 inch color area CCD sensor (1.3M pixels)

† Optical Lens:

Equivalent to 35mm (Wide angle lens <Actual range, 34mm

∼ 105mm lens, Optical 3 x powered zooming

∼ Telephoto lens: 35 mm film camera equivalent)

∼ 102 mm>

† Color LCD Monitor:

2-inch 2-way lighting source color TFT LCD monitor. (Low -temperature Polycrystlline Silicon TFT active matrix)

† Focus Adjustment:

Automatic Focus (TTL type AI Auto Focus)

† Exposure Control:

Program auto exposure (Auto measure by CCD, but manual adjustment is also available)

† White Balance:

Auto white balance/ Fixed mode(sun light) / User defined mode (customize)

† Built-in RAM:

2 D-RAMs (4M) for temporal storage of the image data, and inpu t or output of the image data at View mode.

† Buil t- in Memory (I nternal Memory):

4MB(for recording images, firm ware and optional programs), but more than 2 M with program area will be consumed when installing the optional direct print function.

† Image file format:

Based on JPEG (3 modes; Super fine, Fine, Standard)

† Image size:

1280 x 960 (Super fine/Fine), 640 x 480(Standard), 1280 x 480 (Panorama), 1600 x 1200 (HyPict)

† Built-in Flash:

Auto, Flash Off, Forced Flash

† Optical Viewfinder:

Optical real image view finder interlocked with zooming

† Visual effect:

Digital 2x zoom, Panorama, Continuous shooting, Black&White

† Power source:

Four AA-size (Alkaline, Ni-Cd, Lithium, Ni-MH)

† PC I/F:

High speed serial interface (Auto/19200/38400/57600/115200/ 230400 bps)

† Video Output:

NTSC video output function (Japan, US) PAL video output function (EU)

† Direct Printing: Available with following printers;

Stylus Photo, Stylus Photo 700, Stylus Pho to 750, St ylus Phot o EX, Stylus Photo 1200.

† Options:

See the table on next page.

† External Memory:

Compact Flash memory cards are available.

Product Description Features 8

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EPSON PhotoPC-750Z Revision A

Table below shows the optional items of PhotoPC-750Z.

Table 1-1. Options

No. Name Code No.

3 NI-MH Rechargeable Batteries (4) B81811*

4 Compact Flash Cards

5 PCMCIA adapter B867041

EPSON AC Adapter (input:100V, output:DC7V-2A)

Power Pack (Ni-MH Charger + Ni-MH

rechargeable batteries)

B86703*

B81812*

4MB: B808311 15MB:B808301

NOTE:The asterisk in the code No. is a substitute for the last di git,

which varies by country.

1.1.1 Product Description

† Data Type: JEPG (Based on JFIF) † Thumb nail Image: 160 x 120 pixel † Image size: 1600 x 1200 pixel (HyPict)

1600 x 600 pixel (HyPict Panorama) 1280 x 960 pixel (Super fine, Fine) 1280 x 480 pixel (Panorama Super Fine, Panorama Fine) 640 x 480 pixel (Standard)

† Color: 24-bit Full Color/Monochrome

NOTE: In case of HyPict, it is necessary to upload the included

program.

[Optical] † CCD: 1/2.7 color area CCD (1300K pixels)

Complementary Filter

† Total Pixel: 1343 x 972 † Effective pixel: 1290 x 966 † Actually used pixel:1280 x 960

NOTE: Effective pixel - Actually used pixel = Opti cal black on the

CCD.

† Lens: f=5.2 ∼ 15.6 mm (equivalent to 35mm to

105mm lens on a 35 mm camera)

† Brightness: F2.8 (at f=5.2mm)

∼ F4.7 (at f=15.6 mm)

† Lens Construction: 7 elements in 7 groups † Focus: F2.8 (opening) / F8

Product Description Features 9

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EPSON PhotoPC-750Z Revision A

† Viewfinder: Optical real image view finder interlocked with

zooming (View range over 80%) Correction frame for 80 cm distance from an object

with AF target mark is available.

Cross (+) mark in the finder.

† Sensitivity: Equivalent to ISO 90 (at Standard)

ISO 180/360 high sensitivity is availabl e

† White Balance: TTL type Auto White Balance (rely on AWB

adjustment circuit) Fixed mode or User defined

(customize) mode is available.

† Flash: Aut omatic luminance control flash;

Forced flush, Flash off, Slow Synchro Flash (for taking pictures at night or in dark place) mode. Full Auto TTL

† Exposure Time: Program auto exposure by CCD † Flash Range: 0.2m

∼2.4m for all modes except for wide angle and

zoom (Auto

→Forced on →Forced Off by operation

button)

NOTE:When shooting at macro mode, exposure over will occur if

flash is emitted in 0.2 m (maximum range). In order to avoid this, use tripod without using flash, avoiding hand vibration.

[Shooting Mode]

† LED Indication:TTL Image Playback (Playback rate 1/30 second) † Self-Timer: 10-second timer (Slow blinking for 8 seconds,

fast blinking for 2 seconds)

† Macro Mode: Shooting range 20cm

∼ 80cm

† Quick Shooting Mode: In this mode, processing time from one

shooting to the second shooting is shortened by saving the taken images in the built-in D-RAM. Usually, the image data i n the D-RAM is processed by

γ correction and in the AWB correction circuit, then

stored in the built-in or external memory. However, in this mode, these process are not performed but uses the available area of DRM(2M out of 4M) and save the processing time.

*220 KB (Super fine Panorama): 2 seconds *640 KB (HyPict): 5.6 seconds

Table 1-2. Flash Range

Sensitivity setting Wide angle Zoom

Std. (ISO 90) 0.8 Med. (ISO 180) 0.8 ∼ 3.9m 0.8 ∼ 2.2m High (ISO 360) 0.8 ∼ 5.6m 0.8 ∼ 3.2m

2.8m 0.8 ∼ 1.6m

∼

NOTE:Maximum available shooting in this mode is up to 20

pictures.

† Continuous Shooting Mode: 2 pictures per second

NOTE:1.Need to press the shutter continuously when using this

function.

NOTE:When shooting a object with bad contrast or with low

illuminance, auto focus may not work correctly. Auto focus does not work for the object which require the flash emiss ion forcefully. In this ca se, take about 1.5 m between the camera and the object forcefully for shooting.

2.Single push results only one picture .

3.Beep sound will be heard every shooting.

4.Flash is forced to be Off, since the necessary charging time can not keep up with the shooting speed.

5.Available up to 16 pictures at VGA image.

Product Description Features 10

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EPSON PhotoPC-750Z Revision A

† Digital Zoom: 2 x digital zoom without relying on the optical zoom.

Therefore, digital zoom + optical zoom = 6 x zoom is available.

[Memory]

† Buil t- in RAM: D-RAM 2MB x 2 (Total 4M) † Built-inROM: 4 MB (Recorded image + program + included

utility)

† External Memory: Compact Flash Card † PC-DOS for m at : 512B/Sect

[Indication Function and others] † LCD Monit or: 2 inch TFT color LCD monitor with dual lightin g

system, electric backlight and skyli ght (110K pixels: 512 x 218 pixels)

† View rate at shooting:More than 90% † Playback view range: 100%

5)Indicates fixed white balance mode

6)Indicates High sensitivity mode

7)Indicates continuous shooting mode

8)Indicates self-timer mode

9)Indicates Flash mode

10)Indicates Low battery

† LED next to VF: Green/Orange/Red-blinking/Red † Timer: Built-in Timer IC (Year/Month/Date, Time/Minute/

Second)

NOTE:However, Timer IC operates when the battery is installed.

When the batteries are exchanged, about 30 minu tes wi ll be keep counting the time until the electricity in the capacitor located under SY1 board goes out completely.

† Power saving function: Effective only at battery mode. Save or

Norm. *Save: Power off right after shooting. *Norm: Power off 30 seconds after shooting.

NOTE:No power saving function when using the AC adapter.

† Beep soun d: Available (On/Off setting: However, beeping

sound is forced to be ON at continuous shooting,

everytime the picture is taken.)

† Self- Timer Indication: Timer for 10 seconds † Control LCD Panel:

1)Indicates the number of available pictures (3 digits)

2)Indicates current exposure value when the Function button is pressed.

3)Indicates the setting of image quality mode (includes black and white, HyPict mode)

4)Indicates installation of Memory Card

Product Description Features 11

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EPSON PhotoPC-750Z Revision A

[UI Menu (View Mode Menu)] † Conditions: Continuous / quick shooting mode

White balance (Auto/Fixed/ Customize) Exposure value (Auto/ Adjust <9-step>) Sensitivity (St d ./Med./High) Flash (Standard, Slow-synchroniz ation strobe)

† Settings: Date and time setting (year/month/day/time),

indicating order of year, month and day setting. Beep sound condition (On/Off) Brightness of color LCD display (7 levels) Power saving mode (Save/ Norm)

† Information: Super imposing information on an image (On/Off)

[UI Menu (Playback Mode Menu)] † Settings: Date and time setting (year/month/day/time),

indicating order of year, month and day setting. Beep sound condition (On/Off) Brightness of color LCD display (7 levels) Power saving mode (Save/ Norm)

† Slide Show: Automatic playback / Pausing function † Software: Optional software addition / erasing /execution

Direct printing

† Language: English, Japanese, French, German, Spanish,

Italian, Portuguese (PAL model) English, Japanese (NTSC model)

[Processing Time]

Table 1-3. Processing Time

Quality and

indications

Standard

Fine

Super-fine

•

••

•••

Capturing a

picture

(normal)

about 2 sec about 1 sec.) about 2.5 sec.

about 4.5 sec about 1.5 sec. about 5 sec.

about 6.5 sec about 2 sec. about 6 sec.

Interval time for the

next shot (quick

shooting)

Playback

NOTE:Use the values above as reference. Values above may vary

more or less because of the slight dispersion of internal memory or circuit.

† In formation: Information about numbers of taken pictures,

remaining shots and date and time of capturing. Indication of information (On/Off)

† Playback mode: Single picture display / 9 multiple pictures display † Magnification: 2 x expansion and scroll functions are available. † Photo Co ntrol: Erase: Single/All

Lock: Select/ All/Unlock Image: Indicate Information Copy: from internal memory to CF card/ Vice versa Formatting CF card

Product Description Features 12

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EPSON PhotoPC-750Z Revision A

CAUTION

Table 1-4. Average storage capacity

NTSC model PAL model

Standard (continuous shooting)

Fine

Super fine

HyPict

••

•

•••

H 3 2

•••

35 32

10 9

NOTE:1:Figures shown above represent storage capacity when

optional program are not installed in the camera’s internal memory. If you remove the Direct Print program from the camera, the storage capacity will increase and you can take more pictures. 2:The number of pictures you can take depends on the complexity of each photo, even if the image quality is the same for all the photos.

[Reference for storage capacity wit h comp act flash card]

Table 1-5. Storage Capacity with Compact Flash Card

2: Figures shown above represent stroage capacity when there is no image data in the internal memory and no opti onal sof tware is instal le d. If other file is stored in the memory, available storage capacity decreases according to the file volume.

[Power]

† Batter ies: 4 AA alkaline (lithium, Ni-Cd, Ni-MH batteries) † Converter:AC-DC(7V) converter

Table 1-6. Battery Life

Alkaline Batteries

Shooting Mode Power Save Mode Normal Mode

View Mode (LCD on) 80 pictures available 40 pictures available Finder mode (LCD off) more than 800 pictures available Playback (LCD on) about 90 min.

NOTE:Measurement conditions: Save mode on. Strobe once in two

shots. 1 min. taking interval.

Selected

Mode

Standard Fine Super fine

Indicated

Marks

•

••

•••

4MB 10MB 15MB 20MB 48MB

60 158 227 304 365 19 20 72 97 116

9 25364959

NOTE:1: The maximum amount of pictures stored in the memory

card is 999.

Product Description Features 13

Although AA size MN (manganese) batteries can work first for a while, it is not admitted in the specification because its battery life allows only to take a few pictures.

Page 14

EPSON PhotoPC-750Z Revision A

[Physical Dimensions]

† Width: 137.5mm † Height: 76.4mm † Depth: 61.8mm † Weight: 310g (without batteries and strap) † Tripod socket is available for installing the tripod

[Interface connectors and others] † Video output: NTSC (NTSC model) or PAL (PAL model) video

output

W ARNING

Use only the AC adapter designed for the PhotoPC-

750Z. Since using any other adapter could keep charging the batteries without pr oper operation of AC Jack, it is prohibited to use other adapter.

† Inlet for DC power supply: DC power is supplied from AC adapter

(7V).

† Serial Interface: RS-422, 423 serial port (mini DIN 8 pins

terminals). (Max. 230 k bps is available only on a PC supporting this speed. In case of direct printing, 900kbps or 1.8Mbps synchronous transmission is available)

† Compact fl ash card slot: Compact flash type 1 card interface.

Product Description Features 14

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EPSON PhotoPC-750Z Revision A

[Serial Interfa c e ] The serial interface should be announced as EPSON original

specifications for connecting to a PC/MAC, a pri n ter or a modem, and the specifications are not open t o the public. Connect ing a PC/MAC. the interface is compatible with RS-232C. A PC/MAC is required to support

19.2 kbps transmission rates at the minimum.

Table 1-7. Signal Name for Serial Communication Interface

Camera to PC to printer to modem

Pin assign. Circuits I/O Circuits I/O Circuits I/O Circuits I/O

1 HSKo O prCTS O HSKo O 2 HSKi I -- prSCK I HSKi I 3 TXD- O host RD O TXD- O TXD- O 4 GND GND GND GND 5 RXD- I host SD I RXD- I RXD- I 6 TXD+ O TXD+ O TXD+ O 7 GPi I prDTR I GPi I 8 RXD+ I -- RXD+ I RXD+ I

SHELL shell

Product Description Features 15

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EPSON PhotoPC-750Z Revision A

1.1.2 Control Panel

The figure below shows all indications on the LCD panel and table1-8 shows meaning of each mark.

2 3

IS O

Cnt

Table 1-8. LCD panel

No. Display Meaning No. Display Meaning

1 Remaining shots number 8 Strobe off mode indicator 2 CF card insertion marker 9 Self-timer conditions indicator 3 Image quality indica tors 10 Exposure value decreasing indic at or 4 Monochrome mode indicator 11 Exposure value increasing indicator

5 Caution mark for batteries’ level 12

Automatic strobe (flash) mode

indicator Coercive strobe (Forced flash)

mode indicator

Figure and table below show the indicati on of LED (st atus light ) besid es Viewfinder.

Continuous or quick shooting mode indicator

13 High sensitivity mode indicator

14 Manual white balance

Figure 1-1. LCD Panel Indication

LED (Status Light) Indication meaning

Off No power supply for camera (Power switch is off)

Green light On Power is On, Ready for shooting.

Orange light On Half-stroke shutter condition (AF locked)

Red light blink Image processing or preparing for shooting ready.

Red light On Memory is full (unable to shoot), Camera is broken.

Product Description Features 16

Table 1-9. LED (Status light)

Page 17

EPSON PhotoPC-750Z Revision A

CAUTION

When the camera is broken, sometimes error code is indicated on the LCD. Table below shows the meaning of the error code. However, since these error codes are used in the developing stage and not reliable to find out specific malfunction parts correctly. Therefore, use this table as reference but find out malfunction parts correctly by referring to Chapter 3.

Table 1-10. Error Code List

Error Code Indication Meaning

30s (such as 31, 32,..) Read/Write Error to CF card (includes downloading to PC) 80s (such as 81, 82,83..) Read/Write Error to CF card (except above) 60s Read/Write Error to internal Flash 90s Data write error to the external memory 100s Data write error to internal Flash 254s Access error to the incorrect address

Corresponding Ch circuit does not get activated, even

after 4-bit CPU on the SY1 board ouputs Wake-up signal to the PW1.

Product Description Features 17

Page 18

EPSON PhotoPC-750Z Revision A

1.1.3 Control Buttons

Figure below shows layout of buttons and switches ,and table shows function of each button.

WB IS O H

Cnt

Mode

Function

EPSO N

Figure 1-2. Switch Location

ESC

SEL.

Off

View

Play

Table 1-11. Meaning of buttons

No. Name of button Meanings and functions

• Off: Power off state.

• On: Mode for taking pictures with a view finder. (pushing out the lens cylinder)

1 Rotary Switch

2 Shutter 2 stoke shutter button (half/full stroke)

3 Image Quality (Resolution)

4 Strobe (flash)

5 Self-timer Self-timer setting button 6 Zoom Zooming switch.

7 Back Light

8 Menu Buttons

9MODE

• View: Mode for taking pictures with a color LCD monitor.

• Play: Playback mode of captured pictures and the last picture will be shown first. (the lens cylinder is still collapsed)

Image quality selection button

• Color: Standard, Fine, Superfine, HyPict

• Monochrome: Fine, Super fine, HyPict

Strobe mode selection button (Auto

Forced On→Forced Off)

→

Save energy by; Setting top: for shooting indoor, or Setting down: for shooting outside

• ESC.:Exit from menu.

• Selecting function button (1): Move toward left of upper side.

• Selecting function button (2): Move toward right or lower side.

• SEL.:Execution function button.

Mode selection button. (Standard zooming

Panorama→Digital

→

Macro-photography mode)

→

Providing additional functions with pressing

10 FUNC.

other buttons. (for quick shooting, setting exposure)

Product Description Features 18

Page 19

EPSON PhotoPC-750Z Revision A

1.1.4 Capturing Mode Indication

There are several color frame indicators showing a current capturing mode on the LCD monitor in the VIEW mode.

Table 1-12. Frame indication

Frame Indicator Frame Color Mode

Nothing Nothing Standard ---

Green Macro

Blue Monochrome

Orange Digital 2 x zooming

Upper and lower

fields are veiled by

black bands

Panorama

Characters and

indication period

MACRO

a few seconds

MONOCHROME

a few seconds

ZOOM

a few seconds

PANORAMA

a few seconds

1.1.5 Operation Specification

Table below shows each operation menu. † View Mode

Table 1-13. Operation Menu at View Mode

Camera Mode

View Mode

Menu Items in

View Mode

Capturing(shooting) mode setting

Configuration Setting

Item Name Function

Continuous/Quick shooting

Auto/Manual Auto/Manual

White Balance

Exposure Adjustment

Sensitivity Standard/Medium/High

Date and Time

Beep On/Off

Off/Continuous/Quick

Auto/Fixed/Custom

Customizing Auto/Adjust.

Adjustment

Year/Month/date

Hours/ Minutes

Y.M.D / M.D.Y /D.M.Y

order

Power saving Save/Normal

Red

Continuous

shooting

CONTINUOUS

a few seconds

Information indication

Luminance of LCD 5 levels Display / Non

display

---

Product Description Features 19

Page 20

EPSON PhotoPC-750Z Revision A

† Playback Mode

Table 1-14. Operation Menu at Playback Table 1-15. Operation Menu at Playback

Camera

Mode

Playback

Screen

First screen

Menu Items in

View Mode

Configuration Setting

Information indication

Playback mo de Single / Multiple --2 x

magnification

Item Name Function

Year/Month/date

Date and Time

Beep On/Off Power saving Save/Normal Luminance of LCD 5 levels display / Non

display

9 areas can be selected.

Erase

Lock

Hours/ Minutes

Y.M.D / M.D.Y /

D.M.Y order

---

Select and Erase

Erase All

Select and Lock/

Unlock

Lock All

Camera

Mode

Playback

Screen

Second screen

Menu Items in

View Mode

Slide show Select

Optional software

Language

Item Name Function

Addition /Delete

HyPict ---

Direct printing

Others English/Japanese/

French/German/ Spanish/Italian/ Portuguese (PAL mode)

English/Japanese (NTSC)

Pause/ Continue

Forward

Backward

Stop

Addition

Delete

Go to an optional

---

Second Screen

Editing

Memory information

Copy

Format

Unlock All

---

Camera to CF card

CF card to camera

Erase data in the external memory

Product Description Features 20

Page 21

EPSON PhotoPC-750Z Revision A

1.1.6 Cable Specification

Figure1-4 and 1-5 show cable connection diagram for DOS. V and MAC. individually.

[DOS/V Cable]

† Cable Length: 1.5m † Connector Type:

„ Camera side: 8 pins mini-DIN (male) „ PC side: 9 pins DSUB (female)

Cam era PC

Pin No.

S ignal

shell

GND

----

host R D

GND

host SD

GND

----

Pin No.

S ignal

shell

host C D

host R D

host SD

host D TR

GND

host D S R

host R TS

host C TS

[MAC. Cable/Direct printing cable]

† Cable Length: 1.5m † Connector Type:

„ Camera side: 8 pins mini-DIN (male) „ PC side: 8 pins mini-DIN (male)

Cam era

Pin No.

S ignal

shell

HSKo

HSKi

TxD -

GND

RxD-

TxD +

GPi RxD+

Figure 1-4. Cable Connection for MAC/Direct Print

Pin No.

Printer

S ignal

shell

SCLK

CTS

TXD -

S.G .

RXD-

TXD +

DTE

RXD+

Figure 1-3. Cable Connection for DOS/V Cable

Product Description Features 21

Page 22

EPSON PhotoPC-750Z Revision A

1.1.7 Options

† AC adapter

„ Model:EU-18 „ Input Voltage:AC110V for Taiwan „ Output voltage:DC7V 2.0A

„ Model:EU-19 „ Input Voltage:AC120V for North America „ Output voltage:DC7V 2.0A

„ Model:EU-20 „ Input Voltage:AC220V - AC240V for Europe and others „ Output voltage:DC7V 2.0A

† Ni-MH Batteries

„ Model:EU-24 „ Output voltage: 1.2V / piece „ Capacity: 1400 mAH / piece

† Ni-MH Batteries Charger

„ Model:EU-26 „ Input Voltage: AC100V „ Output Voltage: 1.2V 650 mA x 4 „ Charging time: 2.5H (for 4 pieces)

1.1.8 Environmental Conditions

† Temperature:

„ Operating: 5 to 35 „ Storage: -20 to 60

† Humidity:

„ Operating: 30 to 90%, no condensation „ Storage: 10 to 90%, no condensation „ Shock-resistance: 70G (storage)

°C °C

1.1.9 Power

† DC input volt age (AC adapter): Min. DC 6.3V. Max.:DC 8V

1.1.10 Safety and others

† EMI and safety standards

„ USA: FCC part 15 subpart B class „ Canada: CSA C108.8 class B „ Europe: EMC Directive 89 / 336/ EEC EN EN55022 Class B

(CE-marking) EN610000-3-2 (using AC adapter) EN610000-3-3 (using AC adapter)

EN50082-1 IEC801-2, IEC801-3, IEC801-4

„ Europe: EN55022 (CISPR Pub.22) class B „ Australia: AS/NZS 13438-C6357 „ Japan: VCCI Class B

NOTE:Flash memory life: 10,000 times writing is guaran teed.

Product Description Features 22

Page 23

OPERATING PRINCIPLES

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EPSON PhotoPC-750Z Revision A

W ARNING

2.1 Board Component

Majority of the EPSON PhotoPC-750Z consists of the electric circuit boards. The figure below shows those boards and explains their functions.

TB 1 Board

TB 2 Board

SY 1 B oard

PW 1 Board

C A1 B oard

Table 2-1. Functions of each board

Name Function

4-bit micro processor as the central system is mounted on the back of this board . Power supp ly/Stop cont rol, STROBE

SY1

CA1

TB1

ST1

CA2

TB1

charge/discharge control, Clock control and back up for setting and internal communication bus control are handled by this board.

CCD is directly soldered on this board. Lens with zoom is fixed on the CCD. H/V Driver to drive th e CCD, CDS/AGC to correct the image and A/D converter circuit to transfer the data to the internal ASIC are mounted on this board.

This board takes po we r fro m the bat teri es . Shu tter switch is mounted on this board.

This board generates power supply for digital and analog. Also, electrolytic condenser for flash, connectors for AC adapter and for video output are mounted on this board.

This board has LCD monitor control, optional memory flash card control, and also works as the internal control system for the photographic p rocessing.

Small board mounted on the LED for Self-Timer. It is all right if this board is no t connected during adjustment and operation check.

C A2 B oard

Figure 2-1. Board Location

ST1 board has a danger of getting electric shock

because of C5412. Hold the edges of this board and never touch the board surface when you handle this board. DIscharge the charged energy of C5412 for safety before handling this board. (See Chapter 4 for more details)

Operating principles Board Component 24

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EPSON PhotoPC-750Z Revision A

2.1.1 Out line of Operating Principles

The figure below shows the block diagram of all boards in PhotoPC750Z. Operation of each board is explained from the next section.

Subject

Lens(X 3 O ptical Zoom + Auto Focus)

Optical F ilte r

CCD

CDS/AGC

RISK CPU

Flash C ontrol Circuit

S T1 B oard

DC/DC C onv.

A/D 10bit

CA1Board

DRAM

Address Bus

Data Bus

Scan C onvertor

ST SG O utput C ircuit

DMA Control Circuit

Signal arithmetic Circuit

4M Flash (x 4 )

O ption Flash Memory Card

UART

Driver

NTSC Encoder

af/ae/aw b Integrator

PIO

4bit CPU

LC D Driver

CA2 Board

SY1 Board

Y-C MIX

Video O u t

3 .3 V regutrater

T V M onitor

LCD Moitor

2.1.1.1 CA1 Board

Major ICs on the CA1 board are listed in the figure below. Starting from driving the CCD, they perform processing and A/D conversion until image data is transferred to the internal system.

Table 2-2. Major ICs on the CA1 board

No. IC No. IC Name Function

1 IC903 ICX081AK CCD imager

2 IC902 TC74VHC04

3 IC904 CXD1267AN

4 IC905 CXA2006Q CDS, AGC circuit 5 IC907 CXD2311AR Same function as IC903

H-Driver, Clock for horizontal data transfer in order to drive CCD.

V-Driver, Clock for horizontal data transfer in order to driver CCD.

B uzzer

AC Adapter

TB 2 Bo ard

S e lf- T im e r

Power SW

Shutter SW

Function SW

TB 1 B oard

S h u tte r

Through

LC D P anel

AA-size Batteries

Figure 2-2. Block Diagram for Overall Operation

Operating principles Board Component 25

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EPSON PhotoPC-750Z Revision A

2.1.1.2 CA2 board

Major circuits on the CA2 board are following.

Table 2-3. Major Circuits on the CA2 board

No. Name Function

The optical black section of the CCD extracts averaged values from the subsequent data to make the the black level of the CCD output data

1 Digital Clamp

2 Signal Processor Generic name of No.3 to 6 circuits below.

3γ correction circuit

4 Color generation circuit This circuit converts the CCD data to RGB signals.

5 Matrix circuit

Horizon/Perpendicular

Aperture

AE/AWB, AF arithmetic

(computing) circuit

8 SDRAM Controller

uniform for each line. The optical black section of the CCD averaged value for each line is taken as the sum of the value for the p reviou s line multi plied by the coefficient k and the value o f for the cu rrent line multiplied by the coefficient 1-k.

This circuit perfor ms (gamma) correction in order to maintain a linear relationship between the light input to the camera and the light output from the picture screen.

This circuit generates Y, R-Y, and B-Y signals from the RGB signal.

This circuit generates aperture signal.

The AE/AWB carries out computation ba sed on 64segment screen, and the AF carries out computations based on a 6-segment screen.

This circuit outputs address, RAS, CAS and AS data for controlling the SDRAM. It also refreshes the SDRAM.

No. Name Function

8-bit paral lel input and output makes it possible to

12 PIO/PWM/LCD

13 Digital encorder

14 JPEG control circuit

switch between individual input/output and PWM input/output.

It generates chroma signal from color difference signal.

Controls the interface for the externally-connected JPEG IC.

2.1.1.3 ST1 Boar d

ST1 board has mainly 2 blocks; power supply circuit part and STROBE(flash) control circuit part.

Table 2-4. ST1 Board

No. IC No. Function

This IC has PWM type 4-ch switching regulator circuit; CH1: Digital 5V, analog system (5V, 15V, -7.5V, 5V (A)) CH2: Digital 3.3V

1IC501

2 T3101 Pressure rise/fall transformer for Analog output voltage 3 T3103 Pressure rise transformer for LCD drive voltage output

CH3: Analog voltage LCD system, (5V, 12V, 15.5V) CH4: Back light This regulator has short-circuit protection circuit and

Mis-operation prevention circuit for low input voltage as safety circuits.

9 Communication circuit Generic name of No.10- to 12 circuits below.

10 USTART circuit

11 SIO circuit Interface for the 4-bit mic roprocessor.

The RS-232C can be used for both synchronous and asynchronous trans m is sio n.

There are 2 blocks in the strobe(flash) control circuit part; Charging circuit part and Discharging (Light emission) circuit. Each block is explained on the next page.

Operating principles Board Component 26

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EPSON PhotoPC-750Z Revision A

2.1.1.4 SY1 Board

Table 2-5. ST1 Board (Strobe Control Block)

No. Circuit Name Function

When the flash is emitt ed dur ing th e Forc ed or Auto fla sh, CHQ signal is output high from the SY1 board and charges the main electrolytic condenser into high voltage direct current. Charging circuit consists of mainly following 5 circuits.

1) Power supply filter: It smooth out ripples in the current which accompany the switching of the oscillation transformer and LC circuit composition.

1 Charging Circuit

Discharging

(Light Emission) Circuit

2) Oscillation control: Outputs a drive pulse with a frequency of 15 K Hz to increase DC voltage.

3) Oscillation Transformer: Converts the low voltage alternating current to a high-voltage alternating current by this transformer.

4) Rectifier: Converts the high-voltage alternating current to a high voltage direct current.

5) Voltage monitoring: Monitors the voltage level of C5412. Detects full charge by 2.7VDC.

Strobe emits light when RDY and TRIG signals are input from ASIC. Emission circuit consists of mainly the following 3 circuits.

1) Emission control circuit: When the RDY signal is input to this circuit, Q5409 which is the main source of the emission current, is turned on. STOP s ignal turns off Q5409.

2) Trigger Circuit: D5405 is turned on with input of TRIG signal.

3) Light emitting element: Light is emitted when the highvoltage pulse is applied to the light emitting part.

4-bit microprocessor is mounted on the SY1 board, and following operations are handled.

Table 2-6. Various Circuits of the SY1 Board

No. Function Details

This board outputs the /CHG On signal to the ST1 board. Also, it monitors the value of partial pressure of C5412 and controls to stop charging.

1 Charging

2 LCD light ON

3 Cable Detection

4 CPU communication

5 Power supply control

6 Battery life monitor Monitors the AA-size battery life at the voltage level. 7 Video terminal monitor Monitors if the cable for video output is installed or not.

Card installation

monitor

Also, it judges if the power supply is AC adapter or battery and changes the ending time of the battery charge subtly. This prevents the AC adapter from being heat up.

Controls On/Off of LCD back light. However, characters for explanation on the LCD are transferred by interna l ASIC.

When RS-232C cable i s install ed, t his circu it mak es all button functions on the camera invalid.

Performs serial communication with internal main CPU(SPARC).

Outputs 2 Wake-up signals in order to ge nera te power supply for digital and analog individually.

When the power is ON, this circuit reads empty raster and calculates how many pictures can be taken after detecting the existence of the compact flash card. Also, after the card is detected, internal memory (4M) becomes inval id.

9 Buzzer control On/Off control of buzzer drive.

10 LCD panel control

11 LED control Controls all 3 LED drives.

Controls the present various settings and indication of available photos to take by the key matrix.

Operating principles Board Component 27

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EPSON PhotoPC-750Z Revision A

2.1.1.5 TB1 Board

TB1 board supplies the power source from the batteries to the ST1 board. Also, the condition when the shutter button is pressed is monitored by 4-bit CPU on the SY1 board.

2.1.1.6 TB2 Board

LED emission signal is input to this board when the self-timer is set.

Operating principles Board Component 28

Page 29

TROUBLESHOOTING

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PhotoPC-750Z Revision A

3.1 Overview

There is no function to indicate an error on this camera. Code indications, which sometimes are indicat ed on the LCD when the camera is in abnormal situation, are not reli able since they are still in the developing stage of ASIC, and it is difficult to find the specific malfunction. Also, sometimes several different malfunctions can be found from the same symptom. Therefore, check each checkpoints according to the procedures in this chapter and perform proper repair service.

W ARNING

Before disassembling the camera, make sure that

batteries are removed or AC adapter is disconnected.

Electrolytic condenser(C5412) mounted on the ST1 board is for flash emission. This condenser is charged automatically everytime the power is turned on. Therefore, since there is a possibility to get electric shock during the service operation, release the electricity by using the cement resis tance, if you need to touch the condenser for repair service. (See Chapter 4 for more details)

Table 3-1. First/Second Maintenance

No. Replaced parts Adjustment Items Maintenance

*Initialization *AWB 5100K Adjustment

1 CA1 Board

2 CA2 Board Same as above Second Maintenance 3 Lens Unit Same as above Second Maintenance 4 CCD Same as above Second Maintenance 5 LCD Monitor None First Maintenance 6 SY1 Board None First Maintenance 7 ST1 Board None First Maintenance 8 TB1 Board None First Maintenance 9 TB2 Board None First Maintenance

*CCD Defect Detect Adjustment

*Color Matrix Adjustment *Flange back Adjustment

Second Maintenance

CAUTIO N

In this products, there are 2 repair levels; first maintenance and second maintenance. The performance of the second maintenance is allowed to be done only by EPSON Co., Ltd. We do not guarantee the repair result by the others. Refer to the table 3-1 for distinction between first and second maintenance.

Troubleshooting Overview 30

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PhotoPC-750Z Revision A

3.1.1 The Camera has no power

Refer to the Table 3-2, 3-3, and 3-4, if the LCD is not indicated or red LED keeps blinking and does not go to the stand-by state when the rotary switch is turned on after installing the battery or AC adapter.

CAUTIO N

If 4-bit CPU, which controls User I/F, located under SY1 board becomes abnormal, the signal necessary t o generate the various digital and analog power source will not be generated. As the result, the camera goes to “No Power” state. Also, since this 4-bit CPU performs serial communication with the main CPU on the CA2 board, if trouble happens on the CA2 board, same symptom will appear.

Table 3-2. Check points when the camera has no power

No. Check-Point Solution

Use only recomm en ded a dap ter

Is the user using recommend ed

AC-adapter?

Is SY1 board connected firmly

to the connectors on the CA1 and CA2 boards?

When the rotary switch turns

ON or OFF, does the switch on the SY1 board also rotate?

Is connector between ST1 and

CA2 board (CN501-CN104) frimly connected?

Is the connector connection between CA1 and CA2 board

(CN101, 102 and CN902 and

901) firmly connected? Is there electric continuity

between 2 fuses(PR501 and

PR502) on the reverse face of ST 1 board.

(B86703*). Using other kind of adapter may charge back the battery.

Re-install the SY1 board.

Re-install the switch.

Push the bottom of ST1 (4-pin connector, brown) from the top.

Push in the edge of the flash on the ST1 board and back side of CA2 board.

Replace either one of fuses.

7 Is SY1 board defective? Replace SY1 board. 8 Is ST1 board defective? Replace ST1 board. 9 Is CA2 board defective? Replace CA2 board.

10 Is CA1 board defective? Replace CA1 board.

Troubleshooting Overview 31

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PhotoPC-750Z Revision A

Table 3-4. No power only when the batteries are used (2)

Table 3-3. No power only when the batteries are used (1)

No. Check-Point Solution

Are 4 poles for battery located TB1

board below bent? or any foreign objects?

No foreign objects on the poles of

the battery cover? Are 2 protrusions for installing the

battery cover damaged? Is the insulting film around the

battery blocking electric poles, because of defective battery?

Are there any of foreign objects around electric poles, such as

remaining of plastic package of battery?

Is 2-pin connector (brown) on the

ST1 board connected firmly?

Replace or clean TB1 board. If poles are bent, correct the angle.

Clean the battery cover and pole area.

Replace the battery cover.

Replace the battery.

Remove the foreign objects.

Re-install CN502.

No. Check-Point Solution

Is the recommended AC-adapter

(B86703*) used?

Is SY1 board connected firmly to the connectors on th e CA1 and CA2

boards? When the rotary switch is turned on

or off, does the switch on the SY1

board also rotate along with the rotary switch’s rotation?

Are the connector connections

between ST1 and CA2 boards (CN501 and CN104) all right?

Are the connector connections between CA1 and CA2 boards

(CN101, 102 and CN902 and 901) all right?

Is there continuity in 2 fuses

(PR501, PR502) on the reverse face of ST1 board?

7 Is SY1 board defective? Replace SY1 board.

Use the recommended AC-adapter (B86703*). Using other kind of adapter may charge bac k the battery.

Re-install SY1 board.

If not, re-install the switch.

Push the bottom of ST1 (4-pin connector, brown) from the top.

Push in the edge of the flash on the ST1 board and back side of CA2 board for each other.

Replace either one of fuses (PR501 or PR502).

8 Is ST1 board defective? Replace ST1 board. 9 Is CA2 board defective? Replace CA2 board.

10 Is CA1 board defective? Replace CA1 board.

Table 3-5. Batteries heat up abnormally only when using the AC adapter

No. Check-Point Sol ution

Is a user using the recommended

AC adapter? Is DC Jack in the DC Inlet on the

ST1 board broken?

If not, advice the user to use the recommended adapter.

If yes, replace the ST1 board.

Troubleshooting Overview 32

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PhotoPC-750Z Revision A

3.1.2 LED red light blinks / No green light

This section explains troubleshooting when the LED (red) located next to the lens viewfinder blinks or st ays On(red) and never i ndica tes green light (Stand-by). See the table below.

CAUTIO N

Table 3-6. LED red lights blinks or on and never recovers

When the LED red lights blinks or stays on and never returns to the green light, it means that 4-bit CPU on the SY1 board is not communicating well with the main CPU on the CA2 board.

No. Checkpoints Solution

Is CN301 on the SY1

2 Is SY1 board defective? Replace the SY1 board. 3 Is CA2 board defective? Replace the CA2 board.

board firmly connected to CN106 on the CA2 board?

Push in the SY1 to the CA2 side.

3.1.3 Shutter does not work

This section explains the checkpoints and solut ion when the data image can not be taken even when the shutter button is pressed with or without beep sound. See the table below.

Table 3-7. Shutter does not work

No. Check-Point Solution

Is CN601 on the TB1 board off from the

connector? Is CN304 on the SY1 board off from the

connector? Is cross shaped (+) rib lo ca ted at the rear

side of the shutter button worn out? Is SY1 board connected firmly to the

connectors on the CA1 and CA2 boards? When the rotary switch is turned on or off,

does the switch on the SY1 board also

rotate along with the rotary switch’s rotation?

Are the connector connections between ST1 and CA2 boards (CN501 and

CN104) all right?

Re-connect the connector.

Replace the shutter button.

Re-install SY1 board.

If not, re-install the switch.

Push the bottom of ST1 (4-pin connector, brown) from the top.

Are the connector connections between

CA1 and CA2 boards (CN101, 102 and CN902 and 901) all right?

Is there continuity in 2 fuses (PR501, PR502) on the reverse face of ST1

board?

9 Is SY1 board defective? Replace SY1 board. 10 Is ST1 board defective? Replace ST1 board. 11 Is CA2 board defective? Replace CA2 board. 12 Is CA1 board defective? Replace CA1 board.

Push in the edge of the flash on the ST1 board and back side of CA2 board for each other.

Replace either one of fuses (PR501 or PR502).

Troubleshooting Overview 33

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PhotoPC-750Z Revision A

CAUTIO N

3.1.4 Image is taken out of cross mark in the viewfinder (Not using LCD monitor)

Here shows checkpoints and solut ion when the images are taken out of central cross mark when usi ng the lens viewfinder. See the table below.

Table 3-8. Image is taken out of cross mark in the viewfinder

No. Checkpoints Solution

Is the user trying to take a picture

within 80cm to the subject without using Macro mode?

Are 3 fixing screws for lens viewfinder unit and lens unit removed?

(Removing these 3 screws is prohibited)

Is the CCD soldering on the CA1 board performed correctly? Especially, the lens unit determi nes th e p os iti on w h en

soldering, perform soldering by covering the lens uni t without sol dering only the CCD.

Advise the user to use Macro mode.

Replace the whole lens unit.

Re-solder the CCD correctly.

3.1.5 Nothing appears on the Camera a nd Computer screen (All black)

This section shows check points and solution when no images appears on the LCD even in the playback mode, or the PC monitor is all black after transferring the image data to th e PC. When this sympt om occurs , it will be no images even after changing the LCD switch to View mode.

Camera may work fine even when the CCD is broken and unable to read images. From the repairing experiences of PhotoPC 500, main control board (corresponding to CA2 board in case of PhotoPC750Z) is found defective from the abnormal symptoms related to CCD. Even when the LCD monitor is not all black but if red or green are strong, there is a high possibility that AWB adjustment values are abnormal.

Table 3-9. Nothing appears on the Camera and PC screen

No. Checkpoints Solution

1 Is CA2 board defective? Replace the CA2 board. 2 Is CA1 board defective? Replace the CA1 board. 3 Is CCD defective? Replace the CCD.

If color is obviously abnormal, perform 5100K AWB adjustment again. At this time, follow the cautions below when using the Color Viewer.

*Avoid entering any lights. *Keep the distance between the Color Viewer

and lens within 1cm. (It is OK to let them attach each other) *Set the volume of Color Viewer to the maximum, and wait about 10 minutes after turning the Color Viewer On in order to settle the brightness.

Troubleshooting Overview 34

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PhotoPC-750Z Revision A

3.1.6 Unable to transfer the image data to PC

This section shows checkpoints and solutions when the image data is unable to be transferred to PC due to the communication failure.

Table 3-10. Unable to transfer the image data to PC

No. Checkpoints Solution

Is the user using PC w ith M ax.9600 -bps communication speed? Only WIN95/98

and Power Mac can be used for PhotoPC-750Z.

See if the cable terminal on the camera side is damag ed or not, and check if

there is any broken pin or iron piece in the connector hole or not.

Refer to the cable connection in the

Chapter 1 and check if there is continuity in the serial cable.

4 Is CA2 board defective? Replace the CA2 board.

Following the advice on the left, use high-speed serial I/F board and make the communication speed higher than 19200-bps.

Replace the serial connector or CA2 board.

Replace the cable.

3.1.7 No Images on the LCD (All black)

This section shows check points and solution when images do not appear only on the LCD screen even when images can be transferred to PC all right.

Table 3-11. No images on the LCD

No. Checkpoints Solution

Camera may have shut off

automatically.(Saving energy mode of the back light)

Is the white connector for LC D back light

power supply firmly inserted into CN503 (3-pin, brown) on the ST1 board?

Is FPC of the LCD monitor firmly

inserted into CN171(brow n) on the CA1

board? 4 Is ST1 board defective? Replace the ST1 board. 5 Is LCD monitor broken? Replace the LCD monitor.

Explain the dial switch.

Re-insert the white connector to CN503.

Re-insert the FPC to CN171.

Troubleshooting Overview 35

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PhotoPC-750Z Revision A

3.1.8 Unable to use the Optional Compact Flash

This section shows checkpoints and solution when the number of pictures you can take does not change aft er installi ng optional Compact Flash Card, or image data ca n not be red even a fter removi ng the Flash card and connecting to PC or another camera.

Table 3-12. Unable to use the flash card

No. Checkpoints Solution

Is all the 50-pin of CN141 on the CA1

board damaged or broken? Is the user insert or remove the flash

card when the power is still ON? Is the user using the recommended

compact flash card?

*4MB (B808311) *15MB (B808301)

Replace the CA1 board.

Provide right instruction.

Replace the memory card.

3.1.9 Picture is blurry or out of focus

This section shows checkpoints and solution when the taken images to the PC is blurry or out of focus. See the table below.

Table 3-13. Picture is out of focus

No. Checkpoints Solution

The focus adjustment value stored in

the memory is not correct.

2 Is the lens unit defective? Replace the lens unit. 3 Is CA2 board defective? Replace the CA2 board.

Refer to Chapter 5 and perform “Flange-back Adjustment”.

Troubleshooting Overview 36

Page 37

DISASSEMBLY AND ASSEMBLY

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EPSON PhotoPC-750Z Revision A

4.1 Overview

This section describes disassembly and assembly for major components of PhotoPC-750Z. Since the assembl y process is relati vely complicated, procedures for disassembly and assembly are explained individually.

4.1.1 Precautions

See the precautions below before disassembling and assembling PhotoPC-750Z.

„

W ARNING

CAUTIO N

Disconnect the AC adapter or batteries before disassembling the camera.

„

Discharge the electricity in the electrolytic condenser by using cement resistance when you need to touch the ST1 board for repair service. The electrolytic condenser (C5412), which is mounted on the ST1 board is for light emission and designed to be charged automatically everytime the power is turned on. Therefore, there is a danger of getting electric shock. (See “Cabinet Parts Removal” on page -41)

„

In this products, there are 2 repair levels; first maintenance and second maintenance. The performance of the second maintenance is allowed to be done only by EPSON Co., Ltd. We do not guarantee the repair result by the othe rs. Refer to the table 4-1 for distinction between first and second maintenance.

„

Refer to “Assembly” on page -45 for assembly.

„

Use the exclusive package material when transporting camera.

No. Service Performed Required Adjustment Maintenance

Table 4-1. Criterion of First and 2nd Maintenance

1.Initialization

2. AWB 5100K adjustment

3.CCD Defect Detect

1 Replacing CA1 Board

2 Replacing CA2 Board Same as above. 2nd Maintenance 3 Lens Same as above. 2nd Maintenance 4 CCD Same as above. 1st Maintenance 5 LCD monitor Same as above. 1st Maintenance 6 SY1 Board Same as above. 1st Maintenance 7 ST1 Board Not required 1st Maintenance 8 TB1 Board Not required 1st Maintenanc e 9 TB2 Board Not required 1st Maintenance

Adjustment

4.Color Matrix adjustment

5.Flange-back adjustment Note) Follow the order

above.

2nd Maintenance

Disassembly and Assembly Overview 38

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EPSON PhotoPC-750Z Revision A

CAUTIO N

4.1.2 Tools

The table below shows the recommended tools for repair service.

Table 4-2. Tools

No. Name Purchasable Code

1 5100 Kelvin Color Viewer X 103058400

DscCalDl_121a

adjustment program

3 Simens Chart X

4 Precision Driver (+) O --5 Simens Star Chart X 10428B100 6 Color Matrix O B740200100 7 Soldering Iron O B641000100 8 Tweezers O ---

Windows95 or 98 (require

19200 bps or higher for serial)

“O” means commercially available and “X “means not.

Note)

CAUTIO N

Mac. PC can not be used for adjustment.

O ---

Attached with this manual book.

Included in the end of this book.

4.1.3 Screws

Table below shows the specification of screws.

Since each type of screw has its own usage purpose, make sure to use the specified screws to the correct appointed positions.

Table 4-3. Screw Identification

N0. Configuration Dimension(mm) Position

100

101

102

103

104

M1.7 x 5

Black

M1.7 x 5

White

M1.7 x 4

Yellow

M 2 x 2.5

Yellow

M2 x 6

Yellow

Most of PhotoPC-750Z parts are fixed by this screw.

Half of the screws securing the cabinet are this screw.

Most of the screws securing the board are this screw.

One screw to secure the Spacer for the lens unit.

2 screws for securing the lens unit.

105

106

M1.7 x 3.5

Black

M1.7 x 3

White

One screw for fixing the fro nt cabinet below.

2 screws to secure the lens cover.

Disassembly and Assembly Overview 39

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EPSON PhotoPC-750Z Revision A

START

Cabinet Assembly(Front/Rear), Holder CF, Cover Battery, Cover Top Removal

SY1 Board, TB1 Board and FPC Unit Removal

CA1 Board, DEC Lens, PW1, CA2 Board, Cover Connector, Lens Unit and Holder Lens Removal

Total

Disassembly

4.1.4 Disassembly and Assembly

Refer to the flow c hart for disassemb ly .

„

CAUTIO N

Read “Precautions” on page -38 before starting disassembly.

„

When disassembling the camera, follow the order in the figure.

„

Remove the cables (total 4 cables) for prevention of radiation, according to your necessi ty . Also, r efer to “Assembly” on page -45 for the details about soldering positions when assembling.

Disassembly and Assembly Overview 40

Figure 4-1. Flowchart of Disassembly Procedure

Page 41

EPSON PhotoPC-750Z Revision A

4.1.4.1 Cabinet Parts Removal

The figure 4-2 shows disassembling of Cabinet Assembly (Rear and Front), Cover Battery and Cover CF. When removing the parts, foll ow the number in the figure as procedure order.

W ARNING

There is a danger of getting electric shock from the

electrolytic condenser (C5412) mounted on the ST1 board. Discharge the electricity by using the cement resistance when you need to touch ST1 board for repair service. (See the next section)

2)O pen the cover b attery

9)C over B attery

13)TB 2 B oard

10)C abinet (F ro n t)

11) C onnector

4) 1 screw (105)

12)1 screw (102)

3) 4 screw s(100)

7)Cover CF

8) C abinet (R ear)

1) O pen the cover jack.

5) 1 screw (100)

6)1 screw (100)

Figure 4-2. Cabinet parts removal

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CAUTIO N

Following shows how to release the electricity from the electrolytic condenser (C5412) on the ST1 board. If y ou don’t perform this, you will get a high chance of getting electric shock. Follow the procedures below.

1. Have a cement resistance, which is higher than 560

Ω /10 W.

2. After removing the front cabinet of the camera, connect 2 lead wires to the soldering wires of the electrolyti c condenser. (There is no determined poles)

v o id g e ttin g e le c tric s h o c k

by using insulating tape.

N o fixed direction

U se the resistance at least 560 ohm s/10W .

4.1.4.2 SY1 Board, TB1 Board and FPC Unit Removal

Here explains disassembly of SY1 Board, TB1 Board and FPC Unit. Follow the order shown in the figure.

The procedure for removing the cables for prevention of radiation (electric noise) is not explained her e. Refer to “Assembly” on page -45 when assembling and perform soldering of cable parts accurately. The cable for prevention of radiation f or between boards i s the black cable between SY1 board and CA1 board.

1) 2 screw s(102)

2) C onnector

5) 5 screw s (101)

7) TB 1 B oard

3) C onnector

6) C onnector

4) SY1 B oard

*T his cable is from the shield of back side of the C A 1board.

9) 3 screw s(101)

10)FP C

Figure 4-3. Releasing electricity from the condense r

8) C over G rip

Figure 4-4. SY1, TB1 boards and FPC unit removal

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ADJUSTMENT

REQUIRED

4.1.4.3 CA1 Board Removal

Here explains disassembly of CA1 Board, LCD Monitor and Holder LCD. Follow the order shown in the figure.

ADJUSTMENT

REQUIRED

8) 2 screw s(102)

If the CA1 board is replaced, refer to Chapter 5, and perform the following adjustments.

1)Initialization, 2)AWB5100 Adjustment, 3)CCD Defect Detect Adjustment, 4)Color Matrix Adjustment and

5)Flange-Back Adjustment.

2) LC D

3) FP C

1)C onnector

9) C A 1 Board

4) 3 screw s(102)

7)C onnector

4.1.4.4 DEC Lens, PW1, CA2 Board, Cover Connector, Lens Unit and Holder Lens Removal

Here explains disassembly of DEC lens, PW1, CA2 Board, Cover Connector, Lens Unit and Holder Lens. Follow the order shown in the figure.

When assembling the optical filter, refer to “Assembly” on page -45 since it has a determined direction to be installed.

If the CA2 board or CCD is replaced, refer to Chapter 5 , and perform the following adjustments.

1)Initialization, 2)AWB5100 Adjustment, 3)CCD Defect Detect Adjustment, 4)Color Matrix Adjustment and

5)Flange-Back Adjustment.

Disassembly and Assembly Overview 43

5) Shield(soldering)

6) 1 screw (102)

Figure 4-5. CA1 board, LCD Monitor and Holder LCD Removal

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EPSON PhotoPC-750Z Revision A

8) C A 2 Board3) Shaft cover

b a tte ry

5) 1 screw (102)

1 0 ) 1 s c re w

(1 0 3 )

6)C onnector

)D E C Lens

7) 1 screw (102)

1) 1 screw (102)

11) FP C

C aution:O ptical Filter

9) 2 screw s(104)

Figure 4-6. DEC Lens, PW1, CA2 Boards, Cover Connector, Lens Unit and Holder Lens Removal

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EPSON PhotoPC-750Z Revision A

)

4.1.5 Assembly

Here explains the assembly of PhotoPC-750Z. Since the assembly process is relatively complicated , procedures for disassembly and assembly are explained individually.

ADJUSTMENT

REQUIRED

Refer to Table4-1 and perform the proper adjustments after replacing and assembling the corresponding units or parts. Also, the performance of the second maintenance is allowed to be done only by EPSON.Co.,Ltd.

4.1.5.1 Installing parts to the (front) Cabinet

1. Set the Grip to the front cabinet, and fix them by 2 screws from the inside of the cabinet.

2. Set the tripod holder from the inside of the cabinet, and fix it by one screw (102).

Grip

C over Lens

T r ip o d H o ld e r

Figure 4-7. Parts Installation to the Cabinet (front)

1) 2 screw s(102)

3) 2 screw s(102)

2) 2 screw s(102

C abinet(front)

3. Install the cover lens from the front cabine t, and fix it by 2 screws from the inside of the cabinet.

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EPSON PhotoPC-750Z Revision A

4.1.5.2 Installing parts to the CA1 Board

1. Put the insulating film on the board.

2. Leave the mounting lens on the insulating film.

3. Insert the feet of CCD to the notch of the mounting lens, paying attention to the direction of 1-pin of CCD. (See the figure4-8)

4. Leave the rubber damper on the CCD.

5. Put the optical filter on the rubber damper, paying attention to the direction of the optical filter. (See the fi gure4-8)

6. Put the lens unit over the installed parts from Step 1 to 5.

7. Fix the lens unit from the back of CA1 board by 2 screws (104).

8. Fix the mounting lens from the back of CA1 board by 1 screw (103).

9. Solder 16 legs of CCD from the back of CA1 Board. (Since the soldering areas of 1-pin and 16-pin are relatively big, be careful not to solder the neighboring legs.

CAUTIO N

Soldering CCD must be done before fixing the lens unit. Fixing position of CCD is determined by the screw position of lens unit. Optical filter has a determined position to be installed. (See Figure 4-8)

8) 1 screw (103)

2) M ounting Lens

4) R ubber D am per

6) Lens Unit

1-pin position

3) CCD

5) O ptical Filter

N arrow er w hite area: Lens side

Larger w hite area: C C D side

1 ) In s u la tin g F ilm

7) 2 screw s(104)

CA1

Figure 4-8. Parts Installation to the CA1 Board (1)

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10. Solder the shield case from the back of the CA1 board. (Total 6 soldering positions)

11. Solder the one side o f t he black cable (about 5.5 cm) f or prevention of radiation (electric noise) to the solderi ng point, which is located below the Viewfinder.

12. Insert FPC cable coming out of the lens unit to CN9511 and fi x it .

CAUTIO N

The destination of the cable soldered on the shield case is the soldering point around the (-) side of the power capacity (for backing-up) on the SY1 board.

2) A cable for prevention of radiation (5.5 cm )

C N 9511

S h ie ld C a s e

Solderin

P o s itio n s

Figure 4-9. Parts Installation to the CA1 Board (2)

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CA2

S h ie ld C a s e

3) A cable for prevention of radiation (3.5 cm )

1) Soldering position

2) A cable for prevention of radiation (2.5 cm )

Front face

R everse face

4.1.5.3 Setting-Up the CA2 Board

1. If there are no soldering points on the shield case loc a ted at the front face of CA2 board, drop one soldering to the position as it is shown in the Figure 4-10. (Soldering position)

2. Solder the black cable for prevention of radiation (about 2.5 cm) to the dropped soldering point made at Step 1 above.

3. Solder the black cable (about 3.5 cm) for prevention of radiation to the soldering point, which is located at the under the ser ial I/F connector on the reverse face of the CA2 board by using the soldering iron.

CAUTIO N

The destination of the cable at the Step2 ends at the soldering point on the shield case of the front face of ST1 board. (See “Connecting Boards” on page -51) The destination of the cable at the Step 3 ends at the nearest soldering point to the video terminal on the front face of the ST1 board. (See “ST1 Board SettingUp” on page -49)

Figure 4-10. CA2 Board Setting-up

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EPSON PhotoPC-750Z Revision A

4.1.5.4 ST1 Board Setting-Up

1. Drop one spare soldering to the indicated red spot in the Figure 4-11, which is on the shield case of the front face of ST1 board.

2. Solder the cable for prevention of radiation (black cable; about 4 cm) to the soldering point nearest to the video terminal on the reverse face of ST1 board.

„

CAUTIO N

The spare soldering point dropped at the Step 1 is to fix the cable for prevention of radiation (about

2.5cm), which comes out of the shield case of the CA2 board, after connecting the ST1 board and CA2 board.

„

The end of the cable for prevention of radiation at the Step 2 should be fixed at one of the 6 soldering points, which are to fix the shield case located at the reverse face of CA1 board. This particular soldering point is explained later.

Front face

A cable for prevention of radiation (4.0 cm )

Position of spare soldering

R everse face

Figure 4-11. ST1 Board Setting-up

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)

H older Lens

1) 1 screw (102)

4.1.5.5 ST1 Board Setting-Up (2)

1. Install the holder jack t o the ST1 board and fi x it by one screw (102) .

1) H older jac

2) 1 screw(102

Figure 4-12. ST1 Board Setting-up (2)

4.1.5.6 CA2 Board Setting-Up (2)

1. Install the holder lens to the CA2 board by one screw (102).

Figure 4-13. CA2 Board Setting-up (2)

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4.1.5.7 Install ing Parts to the CA1 Board (2)

1. Put the holder LCD on the back side of CA1 board and fix t hem by 2 screws (102) from the front side of CA1 board.

2 screw s (102)

4.1.5.8 Connecting Boards

CONNECTING THE CA2 AND ST1 BOARDS

1. Put the holder LCD on the back side of CA1 board and fix t hem by 2 screws (102) from the front side of CA1 board.

2. Connect CN501 on the ST1 board and CN104 on the CA2 board firmly, matching the CA2 board and ST1 boar d with the notched part for the lens.

C A2 B oard

1 screw (102)

Figure 4-14. Parts Installation to the CA1 Board (2)

ST1 Board

Figure 4-15. Connecting the CA2 and ST1 Boards (1)

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EPSON PhotoPC-750Z Revision A

3. Fix the CA2 board and ST1 board by inserting one screw to the notch of the holder lens, which is located at the back side of CA2 board.

ST1 front face

O n e s c re w (1 0 2 )

5)This cable com es from the shield case on the C A2 board.

4) This cable com es out of under the I/F connector on the C A2 board.

Figure 4-16. Connecting CA2 and ST1 Boards (2)

Figure 4-17. Fixing cables for prevention of radiation

4. Solder the edge of the cable for prevention of radiation, which comes out of under the serial I/F connector, to the soldering point located next to the video jack of ST1 board.

5. Solder the edge of the cable for prevention of radiation, which comes out of the shield case located on the front side of the CA2 board, to the soldering point on the shield case of the ST1 board.

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C onnector

1 screw (102)

6. Install the shaft battery cover between CA2 board and ST1 board.

Shaft C over Battery

Figure 4-18. Fixing Shaft Cover Battery

CONNECTING CA1 AND (ST1 + CA2) BOARDS

7. Attach 2 connectors as they are shown in the figure, matching the front side of CA1 board with the back side of CA2 board.

8. Fix them by inserting one screw(102) to the hole of the holder lens from the back side of the CA1 board.

Figure 4-19. Connecting CA1 Board

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9. Tighten 2 screws (102) to 2 notches located back side of the hol der LCD and one screw (102) to 1 notch at the left below on the same holder LCD.

10. Solder the cable for prevention of radi ation, which comes out of the next to the video jack of ST1 board, to the red point shown in the figure below.

CAUTIO N

If you can not find the gasket on t he shield case of t he back side of CA1 board while the holder LCD is installed, be sure to go to the next step (installation of LCD monitor) after installing the new gasket.

M ake sure that there is gasket.

11. Install the LCD monitor by sliding it from the below to the hol der LCD.

When installing the LCD monitor to the holder LCD, it can not be installed by pushing it from the top forcefully. Follow the Step 11, referring to the figure below.

Figure 4-21. Installing the LCD Monitor

3 screw s (102)

10) S older the one edge of a cable for p re v e n tio n o f ra d ia tio n to th e n e x t to th e v id e o jack of the reverse face of ST1 board.

Figure 4-20. Fixing the Holder LCD

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EPSON PhotoPC-750Z Revision A

TB2 Board

Cover Grip

12. Connect the FPC cable from the LCD monitor to the connector CN171 at the back side of CA1 board.

13. Connect 2 pink power supply cables for backing light from the LCD monitor to CN502 at the front side of ST1 board.

14. Locate the FPC cables, as they are shown in the figure below.

Step2

Step3

Step1

Figure 4-22. Locating the LCD Monitor Power Supply Cables

CONNECTING TB1 AND (CA1+ST1+CA2) BOARDS

15. Attach the TB1 board with the cover grip to the left side of the TB1 board. At this time, there is no screws for attaching TB1 board and cover grip.

Figure 4-23. Installing TB1 Board

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3 screw s(101)

FPC Unit

C onnector

CONNECTING SY1 AND (TB1+CA1+ST1+CA2) BOARDS

16. Connect 2 connectors located under the SY1 board to the connectors on the CA1 and CA2 boards i ndividually, and fix them by 2 screws (102) from the top of the SY1 board.

17. Solder the cable for the prevention of radiation, which comes from the top of the CA1 board shield case, to the exclusive soldering point located under the (+) and (-) poles of the super capacitor(C3057) on the SY1 board.

18. Connect the connector (CN601) on the TB1 board and the connector (CN303) on the SY1 board. At this time, bent the extra cable and put it between SY1 and TB1 boards.

2 screw s(102)

This cable com es from the shield case of C A 1 board. (under C 3057 super capacitor)

4.1.5.9 Installing the Cabinets

INSTALLING FPC UNIT

1. Perform procedures up to Step 18 and complete connections between boards.

2. Fix the FPC unit from the back of the camera body by 3 screws (101).

3. Connect the cable from the FPC unit to the brown connector located at the front side of CA1 board.

Figure 4-25. Installing FPC Unit

Figure 4-24. Fixing SY1 Board

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EPSON PhotoPC-750Z Revision A

Cover CF

1 screw (100)

INSTALLING THE COVER TOP

4. Match 3 dimples of the Cover Top with the each notch on the SY1 board and fix them. At this time, since the shape of the rotary switch on the SY1 board is “D”-cut shape, push in the Cover Top, matching with the shape of the switch on the Cover Top.

Cover Top

TEMPORAL TACKING THE COVER CF

5.Tack the “Cover CF” to the camera body by one screw (100) temporarily. 5 screw holes can be found in the actual condition, but 2 of them are for tightening the front and rear cabinet together.

Figure 4-26. Installing the Cover Top

Figure 4-27. Tacking the Cover CF temporarily

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SETTING THE LCD MODE SELECTION SWITCH

6. Locate the screw protrusi on (“A” part in the figure) located under the left below of the rear cabinet to the “Cover CF” insi de. At this time, leave the another screw protrusion (“B” part in the figure) out of the “Cover CF”. (When the front cabinet is installed, it will be tightened together)

7. Tighten 2 screws (100) to the 2 holes on the rear cabinet.

8. Tighten a screw (100) to the hole located on the connector for the serial I/F.

2) Tw o screw s(100)

"A " p a rt

3) O ne screw (100)

"B " p a rt

9. Insert the shaft into the hole on the rear cabinet and attach the cover battery. Although the shaft is press fitted, it can be assembled without problem by this procedure, even if the shaft is detached.

Shaft

C o v e r B a tte ry

N ote) B y the previous step, the body is fixed to the rear cabinet in the actual condition.

Figure 4-29. Installing the Cover Battery

10. Connect the connector (2-pin/ w hite) on the SY1 board to the connector on the TB2 board. Then, co nnect the f ront cas e and rea r case. At this time, insert the shaft, which i s attached at the previo us step, to the hole of the cabinet(front) correctly. Also, since each screw is used according to the color of the surroundi ng parts, follow the surrounding color.

N ote) C over C F should have been fixed at the previous step, but it is shown here for screw position.

1) O ne screw (100)

Figure 4-28. Installing the Rear Cabinet

Disassembly and Assembly Overview 58

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ADJUSTMENT

&+$37(5

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EPSON PhotoPC-750Z Revision A

5.1 Overview

This section explains var ious adjustment f or PhtoPC-750 Z. Ref er to the Table5-1 and perform appropriate adjustment, if corresponding parts are replaced in Chapter 4.

„

CAUTIO N

Table5-1 shows required adjustm ents after replacing t he correspondi ng parts in Chapter 4. Refer to Table5-2 for required tools.

In this product, there are 2 repair levels; first maintenance and 2nd maintenance. The service for second maintenance is allowed to be done only by EPSON.Co. We do not guarantee the repair result performed by the others. Refer to “Assembly” on page -45 for assembling after adjustment is done.

Table 5-1. Criterion of First/Second Maintenance

No. Replaced parts Adjustment Items Maintenance

1. Initialization

2. AWB 5100K Adjustment

3. CCD Defect Detect

1 CA1 Board

2 CA2 Board Same as above Second Maintenance 3 Lens Unit Same as above Second Maintenance 4 CCD Same as above Second Maintena nce 5 LCD Monitor None First Maintenance 6 SY1 Board None First Maintenance 7 ST1 Board None First Maintenance 8 TB1 Board None First Maintenance 9 TB2 Board None First Maintenance

Adjustment

4. Color Matrix Adjustment

5. Flange back Adjustment Note) Follow the procedure

order.

Second Maintenance

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W ARNING

CAUTIO N

5.1.1 Getting Ready for Adjustment

Table 5-2. Required Instruments

No. Name Purchasable Code

1 5100 Kelvin Color Viewer X 103058400

DscCalDl_121a

adjustment program

3 Simens Chart X

4 Precision Driver (+) O ---5 Simens Star Chart X 10428B100 6 Color Marix O B740200100 7 Soldering Iron O B641000100 8 Tweezers O ---

Windows95 or 98 (require

19200 bps or higher for serial)

O means commercially available and X means not.

Note)

O ---

Attached with this manual book.

Included in the end of this book.

This section explains camera and PC setting up for adjustment. Follow the procedures below and complete the setting-up.

„

Disconnect the AC adapter or remove batteries before disassembling the camera.

„

Discharge the electricity in the electrolytic condenser(C5412) by using the cement resistance. The electrolytic condenser, which is mounted on the ST1 board, is for light emission and is charged automatically every time the power is turned on. Therefore, if you need to touch the ST1 board for repair service, you must release the electricity in the condenser. (See Chapter 4 for more details)

1. Use PC with Windows

IBM-compatible PC with 486 or higher processor.

„

3.5-inch high-density diskette drive

„

Serial port with standard RS-232C interface

„

8 MB RAM

„

Hard disk drive with at least 15 MB available

„

VGA or SVGA monitor with at least 256-color display.

„ „

Error indication “Camera is not connected” will be

95. (See the details below)

displayed, when you try to activate the program without turning the power of the camera On.

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CAUTIO N

2. Remove all the cabinet parts from the camera body and use the AC adapter for power supply. Also, connect the PC and camera by the serial cable. It is all right to leave the connect or, which is to be connected to TB2 board of the camera body, disconnected.

C o n n e c t to C O M 1 o r C O M 2

Serial C able

AC adapte

5. By double-clicking on “Setup.EXE” in the disk, the program is automatically activated.

„

Error message “Camera is not connected” will be displayed, when you try to activate the program without turning the power of the camera On.

Figure 5-1. Setting-Up before Adjustment

3. Turn on the camera. (Rotate the rotary switch to ON)

4. Insert the calibration software diskette into your diskette drive.

Adjustment Overview 62

Figure 5-2. Adjustment Program for PhotoPC-750Z

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EPSON PhotoPC-750Z Revision A

5.1.2 Initialization

This section explains initialization, which must be done before adjustment. Unlike the previous models, even after initialization is performed, various adjustment values are not cleared in PhotoPC750Z. Only the image storage area is cleared.

CAUTIO N

1. Complete the setting-up for adjustment. (See “Getting Ready for Adjustment” on page -61)

2. Press “Initialize” button on the program. (Indication for confirmation appears)

Perform initialization since an error may appear, if uploading such as firmware is performed with full of shooting data in the image area.

B u tto n fo r in itia liz a tio n

3. Select “Yes” and perform initialization. A few seconds later, the screen below will appear.

B u tto n fo r in itia liz a tio n

Yes(Y) No(N)

Figure 5-4. Screen after initialization is completed

4. Mark • to indicate the camera resolution moves about for 20 seconds. (Time varies according t o the image data si ze at that ti me) Although mark • on the camera bo dy moves sl ower t han the ti ming of the ending indication on the program, you can remove the AC adapter or serial communication cable when you find the ending indication on the program.

Yes(Y) No(N)

5. Press “O.K” button on the screen.

Figure 5-3. Screen when selecting initialization

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5.1.3 Flange-back Adjustment

1. Complete the setting-up for adjustment. (See “Getting Ready for Adjustment” on page -61)

2. Set the simens star chart 150 cm the screen. (Use A3 or bigger simens star chart)

3. Set the rotary switch “View” and connect the camera and TV by the video cable. Then, make sure that simen s star chart is lo cated in the TV screen. If you can not use the TV, check it on the LCD monitor.

4. Press “Focus” button on the program and press “Yes”.

Button for Flange-back Adjustm ent

± 3cm so that it becomes center of

5. Automatically shooting (2 times: Zoom shooting and Standard shooting) and adjustment are performed by the program. After adjustment is completed, adjustment value will appear on the screen.

If an error is made in adjustment, the following value will result.

0: Incorrect adjustment precision (large difference when adjusting and checking)

1:Iris NG If the same error appears even after re-adjustment,

there might be malfunction around the focus mechanism on the les unit or the circuit around the CCD. In case of error “0”, replace CCD and CA1 board. Replace lens unit, in case of error “1”.

6. Click “O.K” button on the screen.

Figure 5-5. Location of the Button for Flange-back Adjustment

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CAUTIO N

5.1.4 AWB5100K Adjustment

„

Adjustment value 249 - 255 indicate an error.

1. Complete the setting-up for adjustment. (See “Getting Ready for Adjustment” on page -61)

2. Turn on the color viewer, and set the volume of the color viewer to the maximum.

3. Leave the color viewer for 10 minutes until brightness settles.

4. Locate the camera within 18 cm from the color viewer and emit the light to the lens.

5. Press AWB button on the program and select “Yes” on the confirmation screen. The camera shoots 3 times and RGB data for each shooting appears on the screen. Also, their average values a re indicated.

6. Press “O.K” button on the screen.

*249: Have the screen corners or object changed or move during the adjustment? (Perform adjustment again) *250, 251: Is there an open circuit in the AGC line? (Replace CA1 board) *252:Is there a defect around the mechanical shutter? (Replace the lens unit) *253, 254:Is there a part missing around the CCD output level High CCD, or a short-circuit or open circuit in CCD OUT? (Replace CA1 board) *255:Is there a part missing around the CCD output level short CCD, or a short-circuit or open circuit in CCDOUT? (Replace CA1 board)

Button for AW B5100K Adjustm ent

„

CAUTIO N

Since this adjustment tends to receive bad influence from the light from outside or room, avoid any light as much as you can. It is all right to perform this adjustment by letting the light from the color viewer surface touch the camera lens.

Figure 5-6. Location of Button for AWB5100K Adjustment

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5.1.5 Color Matrix Adjustment

1. Complete the setting-up for adjustment. (See “Getting Ready for Adjustment” on page -61)

2. Turn on the cooler viewer, and set the volume of the color viewer to the maximum.

„

CAUTIO N

Perform this “Color Matrix adjustment” after performing “AWB5100K” adjustment.

„

Leave the color viewer for 10 minutes until brightness settles, after turning on the color viewer.

„

As it is instructed in the AWB5100 adjustment, avoid entering any light as much as you can.

3. After turning the color viewer On, leave it for 10 minutes until the brightness settles.

4. Set the color chart for adjustment to the color viewer.

Figure 5-7. Location of Button for Color Matrix Adjustment

7. Shooting is done automatically and 4 color matrix (UC MAT0, UV MAT1, UV MAT2 and UV MAT3) adjustment values will appear on the screen.

B u tto n fo r C o lo r M a trix A d ju s tm e n t

5. Locate the camera within 18 cm from the color viewer and emit the light to the lens.

8. Press “O.K” button.

6. Press “UV Matrix” button on the program.

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5.1.6 CCD Defect Detect Adjustment

1. Complete the setting-up for adjustment. (See “Getting Ready for Adjustment” on page -61)

2. Press “Test” button and select CCD Defective(lowest). Then, select “Yes”.

Button for CCD Defect Detect Adjustm ent

3. Program checks CCD and perform adjustment automatically. After adjustment, the result and “OK” button are indicated.

4. If “OK” button does not app ear, perform the adjustm ent again. Then, complete the adjustment by pressing “OK button after “OK” button appears.

5.1.7 Uploading the Firmware

1. Complete the setting-up for adjustment. (See “Get ting Ready for Adjustment” on page -61)

2. Store the Firmware, which is distributed from EPSON.Co. according to the necessity, to the appropriate hard disk. (Firmware is usually bin file and compressed)

3. Select “Firmware” on the program.

4. File Open Dialog will open, since the locat ion where the file is stored is appointed.

Figure 5-8. Screen at CCD Defect Detect Adjustment

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CAUTIO N

Button for Firm w are U ploading

Open

Look in:

C aution Indication Indication of process of uploading

Figure 5-10. Screen when uploading Firmware

„

If the power supply is stopped or the serial communication cable comes off during the

F ile N a m e ( N ) :

F ile s o f T yp e (T ):

Figure 5-9. Screen when uploading Firmware

Open

C ancel

uploading of Firmware , this may lead to destroy the Flash Memory. Therefore, do not perform other operation until “Complete” is indicated.

„

In the firmware, there are 2 types of specification; NTSC or PAL. Do not upload the firmware for PAL to NTSC, or its opposite. (However, there is a protect ion

5. Select the new Firmware and press “Open”.

function on the program)

6. LED located on the front side of the camera (if TB2 board is removed, LED can not be seen) blinks for about 20 seconds to indicate that the uploading is being performed correctly.

Adjustment Overview 68

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EPSON PhotoPC-750Z Revision A

7. When the uploading gets closer to its end, the camera beeps one time and let you know that the operation moved from reading to writing to Flash Memory.

CAUTIO N

Be careful not to take the first beep sound (indication of the operational change from reading to writing to the Flash Memory) as the ending sound of operation.

When the operation is completed, the second beep sound is emitted and a message “Complete” is indicated on the screen. Make sure that a message “Complete” is indicated on the screen before getting off the program.

8. After one or two seconds later , when writing op eratio n is completed, beeping sound is emitted again. Then, a message “Update Firmware: Complete” is indicated on the screen.

Figure 5-11. Screen when uploading is completed

9. Press “OK” button.

Adjustment Overview 69

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MAINTENANCE

&+$37(5

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PhotoPC-750Z Revision A

6.1 Preventive Maintenance

PhotoPC-750Z does not require specific maintenance such as lubrication or cleaning on a regular basis. However, it is necessary to perform cleaning according to its necessity if any dirt or fingerprints are found attached on the parts during the repair service. The table below lists check items and cleaning points when the repair service is completed.

6.1.1 Check Points

Refer to the table 6-1 and perform proper servi ce referring to Chapter 4, if you find any stain or defective parts.

Table 6-1. Items to Check

No. Check Points Check

When the power is turned on, does the lens come

out? Is in and out of lens viewfinder free from the finger

prints or dirt? Also, Aren’t any power supply cable

seen out of viewfinder? 3 D oes the rotary switch move smoothl y? † OK † NG 4 Do you see any dirt in and out sides of fl ash wind ow ? † OK † NG

Does the LCD skylight cover operate along with the 5

operation of the rotary switch?

Are the glass surface of the LCD panel on the SY1 6

board and in and out sides of protection board of the

rear cabinet free from the finger prints or dirt?

Is the lens surface mounted on the CA1 board free 7

from the fingerprints or dust?

Is the glass surface of LCD monitor free from the 8

finger prints or dust? 9 Does the battery cover close or open normally? † OK † NG

10 Is the optional memory inserted correctly? † OK † NG

† OK † NG

Is the rubber cover, which covers each jack and

serial connector installed at the rear cabinet

correctly?

12 Does the each panel switch work normally? † OK † NG 13 Is the exterior clean? † OK † NG

† OK † NG

Maintenance Preventive Maintenance 71

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APPENDIX

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PhotoPC-750Z Revision A

7.1 Circuit Shematics

Following pages show circuit diagram mounted on the PhotoPC-750Z.

Appendix Circuit Shematics 73

Page 74

CABINET 1

106 107

104

103

106

101

104

SR86/JEP-1

105

106

102

105

CP-700Z / Photo Pc 750

No.1 Rev.01 10051

Page 75

CABINET 2

104

105

104

109

108

104

SR86/JEP-2

104

15 16

CP-700Z / Photo Pc 750

No.2 Rev.01 10051

105

Page 76

400

406

( FOR 200V )

405

( EXCPT EAI )

402

EPSON

202

for japan only.

404

( FOR 200V )

403

( FOR 100V )

EPSON

401

PACKING MATERIALS FOR CP-700Z/PHOTO PC 750Z

EPSON PC750 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual