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Epson PhotoPC 850Z Service Manual Download Page 40

EPSON PhotoPC 850Z

Revision A

Operating Principles

Operating Principles of Circuit Boards

40

2.2  Operating Principles of Circuit Boards

The figure below shows the block diagram of all boards in PhotoPC 850Z.

Figure 2-2.  Block Diagram

SDRAM

Controller

SDRAM

Controller

64Mbit

SDRAM

64Mbit

SDRAM

JPEG

Controller

JPEG

Controller

SRAM

Controller

SRAM

Controller

Signal

Processor

Signal

Processor

SG/TG

SG/TG

AF/AE.AWB

Integrator

AF/AE.AWB

Integrator

Encoder

Encoder

8bit

D/A

8bit

D/A

8bit

D/A

8bit

D/A

CLK

GEN

CLK

GEN

PIO

PIO

UART

UART

Driver

Driver

1600

~

1200

IS-CCD

1600

~

1200

IS-CCD

10bitA/D

CDS

@

AGC

10bitA/D

CDS

@

AGC

Y

C

RISC

CPU

RISC

CPU

8Mbit

Frash

Memory

8Mbit

Frash

Memory

74AC273

74AC273

8bit

CPU

8bit

CPU

SY1

@

BLOCK

1MHz

CLK

32.768Hz

CLK

Electoronic

Flash

Electoronic

Flash

|

+

1

2

3

Battery

1.5V

~4

DC  JACK

DC-DC

Converter

DC-DC

Converter

PW1_BLOCK

JPEG

JPEG

Y-C

MIX

Y-C

MIX

Video

Driver

Video

Driver

k b c

Driver

k b c

Driver

k b c

Display

2 inch

k b c

Display

2 inch

SYSTEM

ASIC

Data1

Address1

Data2

Address2

72MHz

CA2_BLOCK

SPEAKER

RS232C

Compact Flash

Card

Compact Flash

Card

Y

C

LENS

Driver

Driver

CA1

@

BLOCK

AV JACK

8bit

D/A

8bit

D/A

Audio

AMP

Audio

AMP

USB

USB

48MHz

Summary of Contents for PhotoPC 850Z

Page 1: ...EPSONPhotoPC850Z Digital Still Camera ...

Page 2: ...e contents of this manual However should any errors be detected SEIKO EPSON would greatly appreciate being informed of them The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof EPSON is a registered trademark of SEIKO EPSON CORPORATION General Notice Other product names used herein are for identification purpose o...

Page 3: ...D REPAIR TECHNICIAN 2 MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE LISTED ON THE SERIAL NUMBER RATING PLATE IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM 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 IND...

Page 4: ...l overview and specifications of the product CHAPTER 2 OPERATING PRINCIPLES Describes the theory of electrical and mechanical operations of the product CHAPTER 3 TROUBLESHOOTING Provides the step by step procedures for troubleshooting CHAPTER 4 DISASSEMBLY AND ASSEMBLY Describes the step by step procedures for disassembling and assembling the product CHAPTER 5 ADJUSTMENT Provides adjusting procedu...

Page 5: ...Revision Status Revision Date of Issue Description A September 16 1999 First Release ...

Page 6: ...Indicated on the Control LCD 26 Switch Function 26 LED Condition 27 Control LCD 27 LCD Monitor 28 Setting Items 29 Full Auto Shooting Mode 29 Program Mode 30 Manual Mode 31 Attach Products 32 Attach Cable 32 DOS V Connector Cable 32 Macintosh Connector Cable 32 USB Interface Cable 33 Interface Cable for Video and Audio 33 Other Attached Products 33 Option 34 Standard Option 34 Environmental Condit...

Page 7: ...n of LCD 75 Installation of Door Monitor 76 Installation of Microphone and SY2 Board 77 Installation of Speaker 78 Installation of Holder Chassis B 79 Installation of Holder Battery 80 Assembly of Cover Top 81 Installation of SY1 Board 81 Installation of Unit Dial and Cover Top 82 Assembly of Cabinet Front 83 Assembly of Lens Barrier 83 Installation of Cabinet Back 86 Installation of Cabinet Front...

Page 8: ...stment 100 LCD Red Brightness Adjustment 100 Uploading Firmware 101 Maintenance Overview 103 Check Points 103 Appendix Connection Among Boards 106 Circuit Boards Component Layout 108 Exploded Diagram 113 Circuit Schematics 116 Siemens Star Chart 124 ...

Page 9: ... PRODUCTDESCRIPTION ...

Page 10: ...gram AE White Balance User custom mode fixed mode 5200K and auto Voice Annotation Capable of recording a voice 3 sec 5 sec and 10 sec Playback Mode Slide show play back mode after recording and playing voice Power Saving Function Automatic shut down mode Setting time 10 sec 30 sec 1 min 3 min and 5 min Power Source Four Ni MH batteries Interface USB DOS V serial and Mac serial Video Output NTSC an...

Page 11: ...es SOFTWARE FEATURES DIRECT PRINTING Function Summary Image print index print album print sticker print Information on the image print function auto photo fine function automatically applies to all images Printer EPSON STYLUS PHOTO STYLUS PHOTO 700 STYLUS PHOTO EX STYLUS PHOTO 750 STYLUS COLOR 740 STYLUS PHOTO 1200 Paper Size T B D A3 Glossy Film Photo Paper Glossy Paper Glossy Sticker A4 Glossy F...

Page 12: ...Revision A Product Description Exterior 12 1 2 Exterior 1 2 1 Weight and Dimension Dimension 126 x 82 x 72 mm Weight 400g without batteries strap and CF card Others Tripod mountable EXTERNAL VIEW Figure 1 1 External View ...

Page 13: ...R 24 bit color or monochrome 1 3 1 1 Optics CCD 1 2 color area CCD 2 0 Mega pixels with complementary filters Total pixels 1688 x 1248 Effective pixels 1636 x 1236 Real use pixels 1620 x 1220 LENS f 6 5 19 5mm equivalent to 35 105mm on a camera using 35mm films 8 elements in 6 groups construction APERTURE F2 0 F11 Wide F2 8 F11 Tele 1 3EV STEP VIEW FINDER Real image optical finder Visual field cov...

Page 14: ...g programmed AE Aperture and shutter speed are variable Spot metering programmed AE Aperture and shutter speed are variable EXPOSURE ADJUSTMENT Manual adjustment possible 2EV 2EV 0 5EV 0 2EV step AE temporary lock function SENSITIVITY Equivalent to ISO 100 normal mode Equivalent to ISO 200 high sensitivity mode Equivalent to ISO 400 super high sensitivity mode WHITE BALANCE Through the taking lens...

Page 15: ...t flash charge Writing speed to the CF card is approximately 130KB sec The quick taking function is available until the 8M DRAM becomes full of photo files The number of image files is limited to 10 CONTINUOUS SHOOTING VGA 640 x 480 Approx 2 images sec Full pixels 1600 x 1200 Approx 1 image sec A capacity of DRAM for continuous shooting is 4 0 MB Flash Forcibly change to no flash mode DIGITAL ZOOM...

Page 16: ...ing taken pictures at playback mode 100 of an image field will be guaranteed BEEP SOUND Always shutter never mode available SELF TIMER INDICATION First 8 seconds slow blinking Last 2 seconds high speed blinking CONTROL LCD PANEL MONOCHROME DISPLAY Indicates the remaining number of images to be taken in 3 digits With the Quick Taking mode ON the panel indicates the number of images in the internal ...

Page 17: ...Shut down Mode Setting Time 10sec 30sec 1min 3min and 5min Operation on any button is impossible once the above setting has passed Only at shooting mode or playback mode In the case of Slide Show the camera shuts down after replaying a cycle With Power Saving Mode Off the camera does not shut down until its battery level becomes low When connected to PC the camera shuts down after 1 minutes When U...

Page 18: ...ing 01 01 1999 00 00 Y M D for Japan and China M D Y for others Select a shooting mode Full Auto Program Manual Setting a shooting function Normal Mode Quick Taking Mode LANGUAGE SETTING Japanese English Italian Portuguese German Spanish French Chinese CAMERA SETTING Power Saving Function 10 sec 30 sec 1 min 3 min 5 min Brightness of the LCD Monitor 3 2 1 0 1 2 3 Beep Sound Always Shutter None Voi...

Page 19: ...tting Standard High Super High White Balance AUTO FIX CUSTOM Exposure Adjustment From 2 to 2 9 steps by 0 5 degree MANUAL Flash Setting Auto Compulsion Prohibition Slow Synchronization Red eye reduction Image Quality Setting Normal Shooting H Quick Shooting Self Timer Function Sensitivity Setting Standard High Super High White Balance AUTO FIX CUSTOM Exposure Adjustment From 2 to 2 21 steps by 0 2...

Page 20: ...e Enlargement Delete Multi Sound Play MANUAL Flash Setting Auto Compulsion Prohibition Slow Synchronization Red eye reduction Image Quality Setting Normal Shooting H Quick Shooting Self Timer Function Digital Zoom x2 Macro Panorama Sensitivity Setting Standard High Super High White Balance AUTO FIX CUSTOM Exposure Adjustment From 2 to 2 21 steps by 0 2 degree Manual Exposure Shutter Speed Setting ...

Page 21: ...ges sec INTERVAL SHOOTING Interval Time Setting Except in HyPict or Voice Annotation Mode 10 sec 24 hour 1 sec step HyPict or Voice Annotation Mode 20 sec 24 hour 1 sec step With Micro Drive inserted 20 sec 24 hour 1 sec step Others 10sec 24 hour 1 sec step 1 3 5 6 Playback Mode NORMAL REPLAY Image Information Date Shutter Speed Aperture Flash Mode Flashing or Non flashing W B Mode Multi screen Fu...

Page 22: ... flash memory is 999 Table 1 1 Time Required After Shooting T B D Image Quality Shooting Interval Normal Shooting Shooting Interval Quick Taking Mode Image Changing Interval Playback Mode Standard Less than 2 sec About 1 0 sec Less than 0 5 sec Fine About 2 6 sec About 1 5 sec About 1 0 sec Super Fine About 3 2 sec About 1 5 sec About 1 5 sec HyPict H About 12 sec About 2 0 sec Table 1 2 File Size...

Page 23: ...other specifications are not open to the public When connected to a PC MAC RS422 the interface is compatible with RS 232C In this case PC MAC is required to support at least 19 2kbps transmitting rates SPECIFICATIONS USING CIRCUITS 14 pin dual line terminal Plug in detection Table 1 4 Specifications should not be disclosed 1 Asynchronous Mode RS 232C 8 bit data non parity 19 2 38 4 57 6 115 2 230 ...

Page 24: ...0 Battery Life NOTE Measurement conditions saving mode on strobe once in two shots one minute interval 12 HSKO CTS 13 RXD I host SD I TXD 14 TXD O host RD O RXD Table 1 5 Using Circuits should not be disclosed Pin Assign Camera To DOS V To printer and Mac To MODEM Circuits I O Circuits I O Circuits I O Circuits Table 1 6 Battery Life Ni MH Batteries Power Saving Mode 30 sec Shooting in LCD ON Mode...

Page 25: ...sec Shut down after 10 sec of not pressing any button Power Saving Mode 30 sec Shut down after 30 sec of not pressing any button Power Saving Mode 1 min Shut down after 3 min of not pressing any button Power Saving Mode 5 min Shut down after 5 min of not pressing any button SLIDE SHOW In the Slide Show the camera shuts down after replaying a cycle however in the Power Saving Off Mode the camera do...

Page 26: ... 1 1 Switch Function Table 1 7 Switch Function Name Function Dial Switch Rotary type Special Shooting Mode with LCD monitor on Monitor Shooting Mode VF Shooting Mode LCD monitor off OFF Power off Playback Mode Option Mode Set up Mode Shutter 2 strokes shutter button half full stroke Top Buttons Image Quality Setting H Self timer Setting on off Flash Mode Setting AUTO Red Eyes Flat Compulsion Prohi...

Page 27: ...h memory card Blink 0 8 sec step Full External Memory Blink 0 8 sec step Low Battery Warning Blink 1 0 sec step Error Turn on Self timer Start Turn on Accelerating blink Turn the switch on Only shooting mode Turn on Blink 0 2 sec step Charging Flash Turn on Blink Playback Mode Setup Mode Turn on Table 1 7 Switch Function Name Function Table 1 9 Control LCD Functions Name Function ISO Sensitivity S...

Page 28: ...Indicates flash setting Available Remaining Pictures Available remaining pictures Available remaining pictures in buffer in quick taking mode Shutter speed by half shutter Table 1 9 Control LCD Functions Name Function Table 1 10 Color Frames LCD Frame Color Mode Note Nothing displayed Preparing Green Macro Indicates Macro for seconds Blue MONOCHRO ME Indicates MONOCHROME for seconds Yellow x2 Digi...

Page 29: ...de and Monitor Shooting mode When Rotary Switch point or pass OFF Rotary Switch change over between shooting modes Shut down by power saving mode Shut down by low battery Replace battery Super Capa effective Replace battery Super Capa ineffective Panorama Macro x VF mode x x x x Change image resolution x Flash x Auto x x x Quick taking mode Transfer memories in buffer to the CF card To the normal ...

Page 30: ...er between shooting modes Shut down by power saving mode Shut down by low battery Replace battery Super Capa effective Replace battery Super Capa ineffective Panorama Macro x VF mode x x x x Change image resolution x Flash x x x Quick Taking mode Transfer memories in buffer to the CF card To the normal mode x Interval value x VF mode x x x x x Set up value x Priority mode x VF mode x x x x White b...

Page 31: ... down by power saving mode Shut down by low battery Replace battery Super Capa effective Replace battery Super Capa ineffective Panorama Macro x VF mode x x x x change image resolution x Flash x x x Quick taking mode Transfer memories in buffer to the CF card To the normal mode x Interval value x VF mode x x x x x Set up value x Priority mode x Manual exposure shooting mode x White balance x White...

Page 32: ...ngth 1 5m Connector Camera side 14 pin connector female PC side 9 pin D SUB connector female Figure 1 5 DOS V Connector Cable 1 5 1 2 Macintosh Connector Cable Length 1 5m Connector Camera side 14 pin connector female PC or Printer Connector 8 pin mini DIN male Figure 1 6 Macintosh Connector Cable Camera PC Camera Printer MAC exluding iMac ...

Page 33: ...tor Camera side 14 pin connector female PC side USB Figure 1 7 USB Interface Cable 1 5 1 4 Interface Cable for Video and Audio Length 1 5m Connector Camera side Mini pin Video side RCA yellow Audio RCA white 1 5 2 Other Attached Products Camera case T B D Strap Shoulder belt Lens accessories adapter Camera USB iMac ...

Page 34: ...U 40 Input Voltage AC 100 240V 50 60 Hz 30VA T B D Output Voltage DC 7 0V 2 0A NI MH BATTERY Model Name EU 24 Output Voltage 1 2V one battery Capacity 1500 mAH battery NI MH BATTERY CHARGER Model Name EU 38 Input Voltage AC 100 240V 50 60 Hz 10 VA T B D Output Voltage DC 1 2V 490 mA x 4 T B D Charging Time 2 5H T B D ...

Page 35: ...AND KEEPING CONDITION Temperature Operating 5 35 C Keeping 20 60 C Humidity Operating 30 90 without condensation Keeping 10 90 without condensation Shock resistance Keeping 70G POWER SUPPLY DC input voltage AC adapter Min DC 2 96V T B D Max DC 3 85V T B D ASSUMED SITUATION Place Home Office Outdoor Water Resistance Not supported ...

Page 36: ...ass B Canada CSA C108 8 class B Europe EMC Directive 89 336 EEC CE marking EN55022 Class B EN61000 3 2 using AC adapter EN61000 3 3 using AC adapter EN50082 1 IEC801 2 IEC801 3 IEC801 4 Europe EN 55022 CISPR Pub 22 Class B Australia AS NZS 3548 class B Taiwan EMI CNS 13438 C6357 Japan VCCI Class B Korea The rule of Electromagnetic wave in Korea ...

Page 37: ...e sun through view finder Keep young children away from the camera especially watch that the long strap does not cause choking accidents C A U T I O N Never use any AC adapters and batteries other than the approved ones If the camera will not be in use for a long time remove batteries Be sure to insert batteries with correct polarity ...

Page 38: ... OPERATINGPRINCIPLES ...

Page 39: ...d Function CA1 CCD image sensor interline type CCD clock drive A D conversion of image data Drives the Lens Assy shutter aperture focus and zoom CA2 Consists of RISC CPU ASIC 8Mbit Flash ROM 32Mbit SDRAM Digital clamp γ correction color generation matrix horizontal and vertical aperture SDRAM controller USB control SY1 8 bit microprocessor Operation key input Controls LCD panel display Controls th...

Page 40: ... A 8bit D A CLK GEN CLK GEN PIO PIO UART UART Driver Driver 1600 1200 IS CCD 1600 1200 IS CCD 10bitA D CDS AGC 10bitA D CDS AGC Y C RISC CPU RISC CPU 8Mbit Frash Memory 8Mbit Frash Memory 74AC273 74AC273 8bit CPU 8bit CPU SY1 BLOCK 1MHz CLK 32 768 Hz CLK Electoronic Flash Electoronic Flash 1 2 3 Battery 1 5V 4 DC JACK DC DC Converter DC DC Converter PW1_BLOCK JPEG JPEG Y C MIX Y C MIX Video Driver...

Page 41: ...block diagram of the CA1 Board Figure 2 3 CA1 Circuit Block Diagram 2 2 1 1 IC903 CCD Specification of the CCD is shown below Structure Interline Type CCD Image Sensor Optical Size 1 2 inch format Effective Pixels 636 H x 1236 V Total Pixels 688 H x 1248 V Optical Black Sensing Horizontal H Direction Front 4 pixels Rear 48 pixels Vertical V Direction Front 10 pixels Rear 2 pixels Figure 2 4 Optica...

Page 42: ... 1 H 2 Vertical register G Mg G Mg V 4 V 3B V 2 V 1A V 1B GND V 3A NC Horizontal register Note Photo sensor 9 10 12 11 GND V OUT RG H 2 H 1 Table 2 2 CCD Pin Description Pin No Symbol Pin Description Waveform Voltage 1 Vφ4 Vertical Register Transfer Clock 7 5V 0V 2 3 Vφ3A Vφ3B Vertical Register Transfer Clock 7 5V 0V 15V 4 Vφ2 Vertical Register Transfer Clock 7 5V 0V 5 6 Vφ1A Vφ1B Vertical Registe...

Page 43: ...re the vertical transfer clocks and the XSG1 and XSG signals output from IC102 are superimposed onto XV1 and XV3 at IC904 in order to generate a ternary pulse Furthermore the XSUB signal which is output from IC102 is used as the sweep pulse for the electronic shutter and the RG signal which is output from IC102 is the reset gate clock Figure 2 6 IC902 Block Diagram 16 φSUB Substrate Clock DC Appro...

Page 44: ...out by means of the photointerrupter P12 inside the lens block Focus Drive The focus stepping motor drive signals LDIN1 LDIN2 LDIN3 LDIN4 which are output from the ASIC expansion port IC107 are driven by the motor driver IC954 Detection of the standard focusing positions is carried out by means of the photo interrupter PI inside the lens block Zoom Drive The zoom stepping motor drive signals ZIN1 ...

Page 45: ... of the CCD extracts the average values from the subsequent data to make the black level of the CCD output data 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 previous line multiplied by the coefficient k and the value for the current line multiplied by the coefficient 1 k Figure 2 8 CA2 Circuit Block Diagram ...

Page 46: ...d to generate the aperture signal AE AWB AND AF COMPUTING CIRCUIT The AE AWB carries out computations based on a 64 segment screen and the AF carries out computations based on a 6 segment screen SDRAM CONTROLLER This circuit outputs address RAS CAS and AS data for controlling the SDRAM It also refreshes the SDRAM COMMUNICATION CONTROL USART The RS 232C can be sued for both synchronous and asynchro...

Page 47: ... CCD data which is input from the A D conversion block to the ASIC and is then transferred to the DRAM so that the CCD data can be displayed on the LCD The data which has accumulated in the DRAM is passed through the NTSC encoder and after D A conversion is carried out to change the data into a Y C signal the data is sent to the LCD panel and displayed If the shutter button is pressed in this cond...

Page 48: ...ion 2 2 3 1 Outline This is the main power circuit comprising of the following blocks Switching controller IC501 Digital 5V and analog system power output T5001 Q5001 Digital 3 25V system power supply Q5007 LCD system power supply Q5008 T5002 Backlight power supply output Q5011 T5003 Figure 2 9 PW Power Circuit Block Diagram ...

Page 49: ...is connected to Pin 17 of IC501 all output is turned off The control signal P ON P A ON and LCD ON are re controlled to restore output 2 2 3 4 Digital 5V and Analog System Power Output 5 1V D 15 2V A 7 7V A and 5 1V A are output Feedback for the 5 1V D is provided to the switching controller Pins 29 of IC501 so that PWM control can be carried out 2 2 3 5 Digital 3 25V System Power Output 3 25V D i...

Page 50: ...arging Circuit When UNREG power is supplied to the charge circuit and the CHG signal becomes High 3 3V the charging circuit starts operating and the main electrolytic capacitor is charged with high voltage direct current However when the CHG signal is Low 0V the charging circuit does not operate Figure 2 10 PW1 Strobe Circuit Block Diagram ...

Page 51: ...ge by R5417 and R5419 it is output to the SY1 circuit board as the monitoring voltage VMONIT When this VMONIT voltage reaches a specified level at the SY1 circuit board the CHG signal is switched to Low and charging is interrupted 2 2 4 2 Light Emission Circuit When RDY and TRIG signals are input from the ASIC expansion port the stroboscope emits light EMISSION CONTROL CIRCUIT When the RDY signal ...

Page 52: ...ons Refer to the block diagram for the overall configuration of the SY1 circuit board The configuration of the SY1 circuit board centers around a 8 bit microprocessor IC301 The 8 bit microprocessor handles the following functions Operation key input Mode LCD display Clock control Power ON OFF Strobe charge control Figure 2 11 SY1 SY2 Circuit Block Diagram ...

Page 53: ...P O SPARC Wake up terminal 65 BARRIER M O Barrier motor drive signal H ON 66 BARRIER M O Barrier motor drive signal H ON 67 BARRIER SW O Barrier motor regulator control signal H ON 68 NTZ PAL O NTSC PAL system switch signal H ON 69 NOT USED 70 PA ON O DC DC converter analog On Off signal H ON 71 P ON O DC DC converter digital On Off signal H ON 72 DIN CONNECT I PC cable connection detection H Conn...

Page 54: ...s operation mode setting data The figure below shows the internal communication between the 8 bit microprocessor ASIC and SPARC lite circuits Figure 2 12 Internal Bus Communication System 90 BARRIER SW1 I Barrier position detection signal 91 94 SCAN OUT 0 3 O Key matrix output 95 LCD ON O DC DC converter LCD system On Off sig H On 96 ASIC TEST O ASIC control signal 97 ASIC RESET O ASIC reset signa...

Page 55: ...is operated the 4 bit microprocessor supplies power to the system as required The 8 bit microprocessor first sets both the P A ON signal at pin 71 and the P A ON signal at pin 70 to High and then turns on the DC DC converter After this High signals are output from pins 97 and 88 so that the ASIC and the SPARC lite are set to the active condition If the LCD monitor is on the pin 95 is set to LCD ON...

Page 56: ...r Switch ON ON ON ON ON ON OFF 4MHz ON OFF Resolution Flash Self Timer Switch ON OFF OFF OFF OFF OFF 4MHz ON OFF LCD Special ON ON ON ON ON 4MHz ON ON Play ON ON ON ON OFF 4MHz ON ON Direct Print ON ON ON ON OFF 4MHz ON OFF Set Up ON ON ON ON OFF 4MHz ON ON Table 2 5 Power Supply Control Continued Sparc Lite ASIC Memory Drive Receiver CCD 8bit CPU Mode LCD LCD Monitor ...

Page 57: ... TROUBLESHOOTING ...

Page 58: ...rom the plug Electrolytic capacitor C5412 mounted on the PW1 Board is for flash emission This capacitor is charged automatically every time the power is turned on Since there is a possibility of getting electric shock during the service operation discharge the electricity by using the cement resistance if you need to touch the capacitor for repair service see Chapter 4 Disassembly and Assembly for...

Page 59: ...IGH NO Check IC301 PW1 and CA2 5 Is the serial communication normal NG Check IC301 and CA2 6 Check CA2 Table 3 2 Check points when the camera has no power Checking Order Check Point Judgement Solution Table 3 4 Image Cannot be Taken Checking Order Check Point Judgement Solution 1 Is the system drive clock 72MHz input to 280 pin CLK IN1 of IC102 YES Check X1101 and IC111 2 Is CLK 36MHz input to 132...

Page 60: ... DISASSEMBLYANDASSEMBLY ...

Page 61: ...C A U T I O N There are two repair levels for this product first and second maintenance Performance of the second maintenance is allowed only by the service center which is equipped with special instrument for adjustment We do not guarantee repair results by the others Refer to Table 4 1 for distinction between the first and second maintenance Use the exclusive package material when transporting t...

Page 62: ...fect detection adjustment 10 Lens adjustment 11 LCD panel adjustment 1st Maintenance Table 4 1 Criterion for First and Second Maintenance No Replaced Part Required Adjustment Maintenance Table 4 2 Equipment Name Note Oscilloscope Higher than 100MHz Digital Voltmeter Host Computer Windows 95 or 98 and must have the following CD ROM drive 3 5 inch floppy diskette drive Standard RS 232C interface ser...

Page 63: ... host computer used for adjustment must meet the following specifications PC AT compatible with 80486 or higher processor Windows 95 or 98 CD ROM drive 3 5 inch high density floppy disk drive Standard RS 232C serial interface connected with serial port 8MB RAM Hard disk drive with at least 15MB available VGA or SVGA monitor with at least 256 color display Table 4 3 Tools No Name Availability Code ...

Page 64: ...SY1 Board Lens VF Holder battery SY2 Board Speaker LCD CA2 Board LENS Assy PW1 Board END C A U T I O N Read 4 1 1 Precautions before starting disassembly When disassembling the camera follow the number shown in each figure Assembly of the camera can be achieved by simply following the reverse order of disassembly procedure however some complex parts are explained in this manual Refer to 7 3 Explod...

Page 65: ...e see the next section 3 Open the cover battery 11 2 Two screws 1 7 x 4 B 2 Four screws 1 7 x 5 Zn 4 Four screws 1 7 x 5 B 5 Three screws 1 7 x 5 Zn 6 Two screws 1 7 x 5 B 7 Screw 1 7 x 3 5 B 8 Two screws 1 7 x 3 Zn 9 Open the door card 10 Two screws 1 7 x 4 B 11 Cabinet back 12 Two screws 1 7 x 4 B 13 Pull 14 Two connectors 15 Cabinet front 16 Open the cover jack 17 Screw 1 7 x 5 B 18 Holder term...

Page 66: ...high chance of getting electric shock Follow the steps below 1 Prepare a cement resistance which has a standard higher than 560Ω 10W 2 After removing the front cabinet of the camera connect 2 lead wires to the soldering wires of the electrolytic capacitor poles are not determined or the lead wires on the capacitor Figure 4 3 Releasing Electricity from Capacitor Avoid getting electric shock by usin...

Page 67: ...4 4 Removal of SY1 Board and Holder Battery C H E C K P O I N T If you removed the Lens VF make sure to adjust the position of gears when assembling the camera see 4 3 2 Installing Lens VF 1 Two screws 1 7 x 4 2 FPC 3 Connector 5 Connector 4 SY1 board 14 Lens VF 12 Holder chassis B 11 Five screws 1 7 x 4 9 Two screw 1 7 x 5 B 8 Two screws 1 7 x 5 B 9 Holder battery 10 Holder grip 7 Two screw 1 7 x...

Page 68: ...2 Board LCD and CA2 Board Removal of the SY2 Board LCD and CA2 Board is described here Follow the number shown in the figure below Figure 4 5 Removal of SY1 Board LCD and CA2 Board C A U T I O N If you removed the Spacer Monitor use a brand new Spacer Monitor for assembly see 4 3 5 Installation of LCD ...

Page 69: ...bly and Assembly Diassembly and Assembly 69 4 2 4 Removal of PW1 Board and CA1 Board This section describes removal of the PW1 Board and the CA1 Board Follow the number shown in the figure below Figure 4 6 Removal of PW1 Board and CA1 Board ...

Page 70: ...s 5 along the guide rib of the holder 5 Install the insulator 6 along the boss guide of the holder 6 After installing the CA1 Board along the guide boss of the holder and the CCD terminal fix the holder with 2 screws 2x6 9 Tightening torque 2 0 2 5kgf cm 7 Fix the mounting lens with one screw 2x3 8 Tightening torque 1 5 2 0kgf cm 8 Solder the CCD to the CA1 Board 9 Insert the FPC into the connecto...

Page 71: ...ssis 3 Turn the gray Gear of the Lens VF clockwise when seen from the back of the camera till it stops and install the Lens VF on the Chassis 4 Fix the Lens VF to the Holder Chassis with 2 screws 1 7x4 2 Tightening torque 1 0 1 4kgf cm 5 Remove the pin Figure 4 8 Assembly of Lens VF Gray Gear Turn the Gear clockwise when seen from the back of the camera Chassis Insert a pin into holes of the Chass...

Page 72: ...s a protrusion 3 Attach the Spacer 6 on the part where the Shield Tape 3 and the FPC cross at the bottom of the Lens Assy 4 Attach the Shield Tape 4 on the CA1 Board 5 Insert a pin 1 1mm in diameter into holes of the Gear and Holder Chassis see 4 3 2 Assembly of Lens VF Step 4 and fix the Lens Assy on the Holder Chassis with 4 screws 1 7x4 0 Tightening torque 1 0 1 4kgf cm 6 Remove the pin from th...

Page 73: ...e 1 0 1 4kgf cm NOTE Secure the CA2 Board on the Holder Chassis with a fixing hook without fail 4 Insert the FPC of the Lens Assy into CN952 of the CA2 Board 5 Insert the FPC of the Lens Assy into CN951 of the CA2 Board NOTE Arrange the FPC as shown in the following figure Figure 4 10 Arrangement of FPC Figure 4 11 Installation of CA2 Board Note Be careful not to damage the FPC with Connector Pin ...

Page 74: ...acer Monitor L 2 on the LCD Monitor Figure 4 12 Installation of Spacer Monitor 1 Fold the Spacer Monitor along the cut on the peeling off paper Peeling off Paper Small 2 Remove the large peeling off paer 3 Attach the Spacer Monitor on the LCD Attach Attach Do not attach this part Spacer Monitor should not cover any part of the LCD surface Align here Align here 4 Remove the small peeling off paper ...

Page 75: ... to CN171 of the PW1 Board 4 Install the LCD on the Holder Monitor 5 Attach the Spacer Monitor L 2 to the Holder Monitor Figure 4 13 Installation of LCD Lead the LCD harness under the Holder Monitor Note Top edge of the Spacer Monitor should not be tucked into the inside of the Holder Monitor Note Keep top edge of the Spacer Monitor out of the Holder Monitor Attach the Spacer Monitor to the Holder...

Page 76: ...1 Board Figure 4 14 Arrangement of Harness 4 3 5 3 Installation of Door Monitor 1 Attach the Spacer Monitor 1 to the Holder Monitor 2 Attach the Door Monitor 2 to the Holder Monitor 3 Install the Spring Door on the Holder Monitor and the Door Monitor Figure 4 15 Installation of Door Monitor CN503 CN504 Twist the harness of the LCD and press it down on the FPC Harness of the TB1 Board Approx 1mm Ap...

Page 77: ...ct the Assy Wire 3 to the SY2 Board 4 Fix the SY2 Board with 3 screws 1 7x4 0 4 Tightening torque 1 0 1 4kgf cm 5 Connect the harness of the Microphone to CN182 of the CA2 Board and place the harness between the SY2 and CA2 Boards 6 Connect the FPC to CN321 of the SY2 Board Figure 4 16 Installation of Microphone and SY2 Board Twist the harness of the Microphone and push it in between the SY2 and C...

Page 78: ... and the Speaker 3 to the Holder Speaker 1 3 Attach the Spacer Speaker F 4 to the Holder Speaker 4 Fix the Speaker on the Holder Chassis with 2 screws 1 7x4 0 5 Tightening torque 1 0 1 4kgf cm 5 Connect the harness of the Speaker to CN181 of the CA2 Board and place the harness under the CA2 Board Figure 4 17 Installation of Speaker CN181 To CN181 Twist the harness of the Speaker and place it under...

Page 79: ...nstall the Earth Terminal 1 on the right side of the Holder Chassis 3 Lead the Assy Wire of the SY2 Board through a hole of the Holder Chassis B 2 4 Fix the Holder Chassis B on the Holder Chassis with 5 screws 1 7x4 0 3 Tightening torque 1 0 1 4kgf cm Figure 4 18 Installation of Holder Chassis B Assy Wire Harness of TB1 Board Note Be careful not to pinch the FPC of the Lens Assy with this part ...

Page 80: ...F 3 between the CA2 Board and the Socket CF NOTE There is a certain direction for inserting the Spacer CF Refer to Figure 4 19 for the correct direction 3 Fix the Holder Battery 1 on the Holder Chassis with 3 screws 1 7x4 0 2 Tightening torque 1 0 1 4kgf cm Figure 4 19 Installation of Holder Battery PW1 PW1 Side View Note Turns of lead wire should look like this Harness of TB1 Crease Socket CF CA2...

Page 81: ...all off easily 4 3 11 Installation of SY1 Board 1 Install the Holder Chassis B see 4 3 8 Installation of Holder Chassis B 2 Connect the harness of the VF to CN305 of the SY1 Board 3 Connect the FPC of the SY2 Board to CN304 of the SY1 Board 4 Connect the FPC of the Unit Dial 2 to CN303 of the SY1 Board 5 Connect CN301 of the SY1 Board to CN106 of the CA2 Board 6 Fix the SY1 Board with 2 screws 1 7...

Page 82: ...7x4 0 2 Tightening torque 1 0 1 4kgf cm 4 Fix the Earth on the Unit Dial with one screw 1 7x4 0 4 Tightening torque 1 0 1 4kgf cm 5 Fix the Unit Dial with 2 screws 1 7x4 0 5 Tightening torque 1 0 1 4kgf cm Figure 4 22 Installation of Unit Dial and Cover Top Earth Note Keep the glossy side up Note Match the protrusion on the Unit Dial with the groove on the Cover Top Note Insert the rib on the Unit...

Page 83: ...A and B on the Holder Barrier 4 4 Hang the Spring Cover Lens on the pin of the Cover Lens Figure 4 23 Assembly of Lens Barrier 5 Fix the TB2 Board 2 on the Holder Gear Cam 1 with one screw 1 7x5 0 3 Tightening torque 1 3 1 7kgf cm C H E C K P O I N T Make sure that the spring is not pinched by the Cover Lens A After assembling the Cover Lens A and B make sure that the Cover Lens A closes normally ...

Page 84: ...Barrier on the Cover Front Barrier 1 aligning their screw holes 9 Install the Ring Lens 2 on the Compl Holder Barrier matching the positioning hole of the Ring Lens with the protrusion of the Compl Holder Barrier and secure them with 3 screws 1 4x2 5 3 Tightening torque 0 8 1 2kgf cm Figure 4 25 Installation of Compl Holder Barrier C H E C K P O I N T After installation turn the Gear Cam Barrier c...

Page 85: ...ing torque 0 6 1 0kgf cm Figure 4 26 Installation of Compl Holder Gear 11 Fix the Compl Cabinet Front on the Compl Holder Barrier with 4 screws 1 7x5 0 1 Tightening torque 1 3 1 7kgf cm 12 Fix the Compl Motor Barrier 2 on the Compl Cabinet Front with 2 screws 1 7x4 0 3 Tightening torque 1 0 1 4kgf cm Figure 4 27 Installation of Compl Holder Barrier and Compl Motor Barrier ...

Page 86: ...he shield plate of the CA2 Board 3 Install the Cabinet Back and fix it with 2 screws 1 7x5 0 1 Tightening torque 1 3 1 7kgf cm 4 Secure the Cabinet Back with one screw 1 7x3 5 2 Tightening torque 1 3 1 7kgf cm 5 Install the Cabinet Back and fix it with one screw 1 7x5 0 3 Tightening torque 1 3 1 7kgf cm 6 Install the Cabinet Back and fix it with one screw 1 7 x 3 0 4 Tightening torque 1 3 1 7kgf c...

Page 87: ...inet Front 5 Fix the left side of the Cabinet Front with 2 screws 1 7x4 0 2 Tightening torque 1 0 1 4kgf cm 6 Fix the bottom of the Cabinet Front and Back with 8 screws 1 7x5 0 1 at the left side of the Cabinet Front Tightening torque 1 3 1 7kgf cm 7 Fix the Holder Battery and the Cabinet Back with 5 screws 1 7x5 0 2 Tightening torque 1 3 1 7kgf cm Figure 4 30 Fixing the Bottom of Cabinet with Scr...

Page 88: ...15 Installation of Cabinet Front 3 Install the Door Card 1 on the Holder Door Card 2 and fix them on the Holder Grip with 2 screws 1 7x4 0 3 Tightening torque 1 0 1 4kgf cm Figure 4 31 Installation of Door Card C A U T I O N Be sure to use screws 3 with a designated length to fix the Door Card Use of 1 7x5 screws may cause distortion of the Cover Battery and may eventually make it impossible to in...

Page 89: ... ADJUSTMENT ...

Page 90: ...tment 11 3 LCD Gain Adjustment 11 4 LCD Blue Brightness Adjustment 11 5 LCD Red Brightness Adjustment NOTE If the lens CCD and board are replaced while performing items 6 9 it is necessary to perform adjustment again Steps 6 9 should be carried out in sequence 5 1 2 Getting Ready for Adjustment 5 1 2 1 System Requirements Windows 95 or 98 IBM R compatible PC with 486 or higher processor CD ROM dri...

Page 91: ...the cover down to open it 3 Line up the arrow on the cable connector with the notch on the camera s serial port Insert the connector 4 Line up the serial connector on the cable with one of the serial ports on the computer and insert the connector 5 Turn on the camera and the computer system Figure 5 1 Connecting Camera to Computer SR922 JEP 6 AC adaptor Serial cable To COM1 or COM2 serial port ...

Page 92: ...ion appears Figure 5 2 Selecting Initialization 3 Select Yes and perform initialization The screen below will appear a few seconds later Figure 5 3 Completing Initialization 4 Mark which indicates resolution of the camera moves about for 20 seconds time varies depending on the image data size saved at that time Although the mark on the camera body moves slower than the program indicates the end of...

Page 93: ...easuring Point CL520 Measuring Equipment Frequency Counter ADJ Location VR501 ADJ Value 200 0 50 kHz Adjusting Method Adjust with VR501 to 200 0 50 kHz 5 2 2 3 5 1V A Voltage Adjustment Measuring Point CL530 Measuring Equipment Digital Voltmeter ADJ Location VR502 ADJ Value 5 10V 0 05V Adjusting Method Adjust with VR502 to 5 10 0 05V 5 2 2 4 3 25V D Voltage Adjustment Measuring Point CL535 Measuri...

Page 94: ...thod Adjust with VR504 to 12 40 0 05V 5 2 2 6 7 7V L Voltage Adjustment Measuring Point CL563 Measuring Equipment Digital Voltmeter ADJ Location VR505 ADJ Value 7 70 0 05V Adjusting Method 1 Use CL554 to check that the pulse width of the inverter clock is approximately 8 8 msec 2 Note that the inverter clock will be at L for 1 second after backlight illumination starts 3 Adjust with VR505 to 7 70 ...

Page 95: ...to an angle so that nothing appears in any part of the color viewer except the white section do not enter any light 2 Double click DscCalV122 3 Click AWB and click Yes 4 AWB adjustment value will appear on the screen 5 Click OK Serial cable Camera 0 18 cm All white pattern Color viewer 5 100K C H E C K P O I N T If a0 65535 65535 65535 1203 is displayed on the screen an error has occurred ...

Page 96: ...ill appear on the screen 6 Click OK 5 2 5 CCD Defect Detection Adjustment ADJUSTING METHOD 1 Double click DscCalV122 2 Click CCD Defect and click Yes 3 After the adjustment adjustment value will appear on the screen A maximum of 16 defects will be displayed in x y coordinates Serial cable Camera 15 cm 1 cm All white pattern color viewer 5 100K and color matrix adjustment chart C H E C K P O I N T ...

Page 97: ...bject should be 400 lux 10 ADJUSTING METHOD 1 Set the Siemens Start Chart 150cm 3cm away so that it comes in the center of the screen 2 Double click DscCalV122 3 Click Focus and click Yes 4 Lens adjustment value will appear on the screen 5 Click OK Serial cable Camera Approx 150 cm 3 cm Siemens star chart C H E C K P O I N T Values measured by the Auto Focus Sensor against the setting values C0 9 ...

Page 98: ...Power Switch ON Figure 5 8 Measuring Points ADJUSTING METHOD 1 Double click DscCalV122 2 Select 0 on the LCD H AFC 3 While watching the LCD monitor adjust H AFC so that the left and right edges of the LCD adjustment frame have the same distance from the left and right edges of the LCD screen A B Figure 5 9 Adjustment Frame CL403 CL404 CL405 ...

Page 99: ... so that the amplitude of the CL403 waveform reaches 7 5 Vp p 0 3V Figure 5 10 LCD RGB Offset Adjustment 5 2 7 3 LCD Gain Adjustment ADJUSTING METHOD Adjust LCD Gain so that the amplitude of the CL403 waveform reaches 4 0 Vp p 0 2V NOTE LCD RBG Offset adjustment should always be carried out first Figure 5 11 LCD Gain Adjustment ...

Page 100: ...form NOTE LCD RGB Offset adjustment and LCD Gain adjustment should always be carried out first Figure 5 12 LCD Blue Brightness Adjustment 5 2 7 5 LCD Red Brightness Adjustment ADJUSTING METHOD Adjust LCD R Bright so that the amplitude of the CL404 waveform becomes 0 2V with respect to the CL403 VG waveform NOTE LCD RGB Offset adjustment and LCD Gain adjustment must have been done Figure 5 13 LCD R...

Page 101: ...d beeping sound is emitted again Then a message Complete is indicated on the screen 9 Press OK Open Cancel Look in File name File type Up One Level Open C A U T I O N If the power supply stops or the serial communication cable comes off during the firmware uploading this may lead to destruction of the Flash Memory Do not perform any other operations until Complete is indicated When the firmware up...

Page 102: ... MAINTENANCE ...

Page 103: ...U T I O N After applying grease to the specified parts wait at least 30 seconds before proceeding to the next assembly step as it takes a while for the grease to dry Since the grease consists of fluoroplastic and solvent which are likely to be separated easily shake the grease bottle well before use Be careful with the lubrication point as well as the amount of grease The grease should not drip or...

Page 104: ...h covers various connectors and serial connector installed at in the rear cabinet correctly OK NG 10 Does the each panel switch work normally OK NG 11 Does the lens barrier work normally OK NG 12 Is the exterior of the camera clean OK NG Table 6 2 Check Points No Check Points Check ...

Page 105: ... APPENDIX ...

Page 106: ...EPSON PhotoPC 850Z Revision A Appendix Connection Among Boards 106 7 1 Connection Among Boards The following page show the connection among the boards ...

Page 107: ......

Page 108: ...EPSON PhotoPC 850Z Revision A Appendix Circuit Boards Component Layout 108 7 2 Circuit Boards Component Layout This section shows the component layout of each circuit board Figure 7 1 CA1 Circuit Board ...

Page 109: ...EPSON PhotoPC 850Z Revision A Appendix Circuit Boards Component Layout 109 Figure 7 2 CA2 Circuit Board ca2patter ...

Page 110: ...EPSON PhotoPC 850Z Revision A Appendix Circuit Boards Component Layout 110 Figure 7 3 SY1 Circuit Board Figure 7 4 SY2 Circuit Board ...

Page 111: ...EPSON PhotoPC 850Z Revision A Appendix Circuit Boards Component Layout 111 Figure 7 5 PW1 Circuit Board ...

Page 112: ...EPSON PhotoPC 850Z Revision A Appendix Circuit Boards Component Layout 112 Figure 7 6 ST1 Circuit Board Figure 7 7 TB1 Circuit Board Figure 7 8 TB2 Circuit Board ...

Page 113: ...EPSON PhotoPC 850Z Revision A Appendix Exploded Diagram 113 7 3 Exploded Diagram Exploded diagrams are shown on the following pages ...

Page 114: ...m No 1 SR922 JEP Parts List 1 1 2 3 4 4 5 5 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 6 7 8 9 6 110 115 115 107 107 107 107 108 107 107 107 106 106 106 106 106 106 106 106 106 109 113 111 111 112 106 104 104 104 104 104 104 104 105 104 104 104 105 110 CABINET 1 ...

Page 115: ...o 2 SR922 JEP Parts List 2 43 1 11 12 13 14 15 16 17 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 35 36 37 38 39 40 44 41 18 19 2 3 4 5 6 7 8 9 10 45 46 47 48 104 116 104 104 116 117 104 104 104 104 104 104 104 104 104 104 107 107 107 107 107 104 104 104 104 104 104 114 107 A A CABINET 2 ...

Page 116: ...toPC 850Z Revision A Appendix Circuit Schematics 116 7 4 Circuit Schematics The following pages show the circuit schematics CA1 Circuit CA2 Circuit SY1 SY2 Circuit PW1 Circuit ST1 Circuit TB1 Circuit TB2 Circuit ...

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Page 124: ...EPSON PhotoPC 850Z Revision A Appendix Siemens Star Chart 124 7 5 Siemens Star Chart The Siemens Star Chars which is essential for adjustment is shown on the last page ...

Page 125: ...s i e m e n s ...

Page 126: ...6 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 6 7 8 9 6 110 115 115 107 107 107 107 108 107 107 107 106 106 106 106 106 106 106 106 106 109 113 111 111 112 106 104 104 104 104 104 104 104 105 104 104 104 105 110 CABINET 1 Photo Pc 850 No 01 10149 Rev 01 ...

Page 127: ... 23 24 25 26 27 28 29 30 31 32 33 34 35 35 36 37 38 39 40 41 18 19 2 3 4 5 6 7 8 9 10 45 46 47 48 104 116 104 104 116 117 104 104 104 104 104 104 104 104 104 104 107 107 107 107 107 104 104 104 104 104 104 114 107 A A CABINET 2 Photo Pc 850 No 02 10149 Rev 01 ...

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