MINOLTA DIMAGE XT Service Manual Repair Guide

Page 1

(2786)A 1

REPAIR GUIDE

This repair guide section contains the disassembly and adjustment procedures. For the assembly procedure, follow the reverse procedure.

SYMBOLS

■:Cautions and keypoints : Grease : Adhesive : Tool

CONTENTS Page

■Precautions --------------------------------------------------------------------------------------------------------------------- 2

■Discharge ----------------------------------------------------------------------------------------------------------------------- 3

Exterior parts, LCD, CP-1 Compl PWB Disassembly ----------------------------------------------------------------- 4

ST-1 Compl PWB, PW-1 Compl PWB Disassembly ------------------------------------------------------------------ 5

■PWB Diagram ----------------------------------------------------------------------------------------------------------------- 6

■Adjustments and Checks Required After Repair ----------------------------------------------------------------------- 7

■Adjustment sequence --------------------------------------------------------------------------------------------------------- 7

■Instruction for Adjustment Program ------------------------------------------------------------------------------------- 8

■Lens Adjustment (Focus in the Calibration section)------------------------------------------------------------------ 10

■AWB Adjustment (AWB in the Calibration section) ------------------------------------------------------------------ 11

■Missing Pixel (Defect) Compensation Adjustment (Test in the LCD section) ----------------------------------- 12

■Missing Pixel (Black) Compensation Adjustment (Test in the LCD section)------------------------------------ 13

■LCD Monitor Adjustment (HAFC/RGB Offset/Gain/R Bright/B Bright in the LCD section) --------------- 14

■USB Storage Information Registration ---------------------------------------------------------------------------------- 18

■Measuring Instruments, Tools and Jigs -------------------------------------------------------------------------------- 19

Page 2

2 (2786)A

■■

■Precautions

■■

Chemicals

Handle chemicals of high volatility with care, use of which will affect to your health and environment.

1. Store them sealed in a specific place to prevent exposure to high temperature or direct sunlight.

2. Avoid dividing them into small containers and prevent vaporization.

3. Keep containers sealed when not in use.

4. Avoid using them as much as possible. When required, remove only required amount from the container to make full use.

Plastic parts

1. When cleaning plastic parts, use cleaning paper or cloth. Never use thinner, ketone, ether.

2. When installing plastic parts, insert the specific screws vertically to the parts. (Be careful not to tighten too much.

PCBs

Since PCBs use MOS IC, you must reduce static electricity. When repairing a PCB itself, or when wiring, please perform your work as illustrated below. If grounding is impossible, connect a cable to a steel desk or shelf.

REPAIR GUIDE

Keep touching the conductiveKeep touching the conductive

Keep touching the conductive

Keep touching the conductiveKeep touching the conductive mat while you work.mat while you work.

mat while you work.

mat while you work.mat while you work.

Conductive MatConductive Mat

Conductive Mat

Conductive MatConductive Mat

1M1M

ΩΩ

GNDGND

GND

GNDGND

Page 3

(2786)A 3

REPAIR GUIDE

Discharge

Before disassembly, be sure to discharge the main condenser in the following manner. (Fig. 1)

■■

Fig. 1Fig. 1

■

Fig. 1

■■

Fig. 1Fig. 1

Short-circuit with discharger or resistor of 200-300 ohm/3w. Check voltage to make sure it is discharged.

Page 4

4 (2786)A

1 Exterior parts, LCD, CP-1 Compl PWB Disassembly

Disassemble the parts in order from 1 to 22. When assembling, follow the reverse procedure.

REPAIR GUIDE

Page 5

REPAIR GUIDE

ST-1 Compl PWB,PW-1 Compl PWB Disassembly

Disassemble the parts in order from 1 to 7. When assembling, follow the reverse procedure.

(2786)A 5

Page 6

6 (2786)A

■■

■PWB Diagram

■■

ST‑1Compl PWBST‑1Compl PWB

ST‑1Compl PWB

ST‑1Compl PWBST‑1Compl PWB

CP‑1Compl PWBCP‑1Compl PWB

CP‑1Compl PWB

CP‑1Compl PWBCP‑1Compl PWB

REPAIR GUIDE

PW‑1Compl PWBPW‑1Compl PWB

PW‑1Compl PWB

PW‑1Compl PWBPW‑1Compl PWB

ST‑2Compl PWBST‑2Compl PWB

ST‑2Compl PWB

ST‑2Compl PWBST‑2Compl PWB

Page 7

(2786)A 7

REPAIR GUIDE

Adjustments and Checks Required After Repair

After making replacement or repair of the following items, check or adjust as required in the table. Be sure to perform in a sequential order from the top in the table. ☆: Necessary check ★: Necessary adjustment

Parts

Adjustment/Ch eck item

Lens Adjustment Page 10 AWB Adjustment Page 11 Missing Pixel (Defect) Compensation Adjustment Missing Pixe l ( B lac k ) Compensation Adjustment LCD Monitor Adjustment Page 14 USB Storage Information Registration Re solvin g Po w e r Check Ch e ck List Color Reproduction Check List Ambient Exposure Accuracy Check List Flash Exposure Accuracy Check List Grayscales Che ck List B.C. Lock Voltage Check List Current Consumption Check List Current Leak Check List

Page 12

Page 13

Page 18

CP-1

Compl

PWB

(#0408)

Replacement Replacement Replacement Replacement Replacement

★★★★

★★★ ★

★

☆☆☆☆☆

PW-1

Compl

PWB

(#0432,0452)

ST-1

Compl

PWB

(#0406)

Lens Assy

(#3254-0600)

LCD

(0460)

Adjustment sequence

■Some adjustments should be performed in the order

1.Lens Adjustment

2.AWB Adjustment

3.Missing Pixel (Defect)Compensation Adjustment

4.Missing Pixel (Black)Compensation Adjustment Adjust in the order from 1 to 3. Adjust 4 after 2. The other adjustments can be done independently.

■ Note of the PW-1 Compl PWB (#0432,0452) Never turn the VR501 and VR502 on the PW-1 Compl PWB (#0432,0452), or the PW-1 Compl PWB (#0432,0452) has to be replaced. The output voltage adjustment and the oscillating frequency adjustment of the individual PWB can only be performed at the parts assembly line, not available with service facilities. For the same reason, always replace with the PW-1 Compl PWB (#0432,0452) as a set.

Page 8

8 (2786)A

Instruction for Adjustment Program

Adjust #2786with F/X Series Adjustment Program(Ver.1.0). F/X Series Adjustment Program is usable for the 2776,2777,2783,2785,2788 and 2786 adjustment.

■ System Required

Computer: IBM PC/AT compatible running Windows98, Windows98 Second Edition, Windows 2000 Professional* or Windows Me. *: Windows 2000 Professional is recommended for stable operation. Memory: A minimum of 40MB RAM Hard Disk Space: 15MB or more free hard disk space Monitor: Capable of 32000 colors or greater monitor with a minimum resolution of VGA

■ Contents of F/X Series Adjustment Program CD Ver.1.0

F/X Series Adjustment Program CD (The folders are underlined.)

REPAIR GUIDE

AD J Pro gram

DscCalDi.exe Camapi32.dll Driver so ft fo r W in.98

MD SC PD R .inf MD SC PD R .pdr MD SC STO R .in f MD SC STO R .sys

Siemens-Star-Chart.bmp

■ Adjustment Program Installation

1. Insert the F/X Series Adjustment Program CD into the CD-ROM drive.

2. Double-click on the CD-ROM icon, then select "ADJ Program" folder, and copy the folder to the computer's desktop.

■ Launching Adjustment Program The dedicated USB driver included in F/X Series Adjustment Program must be installed for Windows98 and Windows98 Second Edition. See Instruction of USB Driver Soft for Windows98. (pg. 10)

1. Connect the camera to the computer with the USB cable USB-500.

2. Start "DscCalDi.exe" file from the ADJ Program on the computer's desktop. The adjustment screen appears as shown in Fig. 1.

■Adjustments available with Adjustment Program ("DscCalDi.exe" )

Lens Adjustment (Focus in the Calibration section)

Fig. 1 Adjustment screen of F/X SeriesFig. 1 Adjustment screen of F/X Series

Fig. 1 Adjustment screen of F/X Series

AWB Adjustment (AWB in the Calibration section)

Missing Pixel (Black/Defect) Compensation Adjustment

(LCD section) LCD Monitor Adjustment (HAFC/RGB Offset/Gain/R Bright/B Bright/VomPP in the LCD section) USB Storage Information Registration (in the USB Storage section)

Fig. 1 Adjustment screen of F/X SeriesFig. 1 Adjustment screen of F/X Series Adjustment Program ("DscCalDi.exe" )Adjustment Program ("DscCalDi.exe" )

Adjustment Program ("DscCalDi.exe" )

Adjustment Program ("DscCalDi.exe" )Adjustment Program ("DscCalDi.exe" )

Calibration

AWB

Focus

UV Matrix

Cal Mode

Cal Data

USB storage

VID

Get

PID

Set

Upload

LCD Type

Firmware

Image

Initialize

EVF

LCD

R Bright

RGB Offset

Tint

VCO

H AFC Test

Serial

Set

B Bright

VCOMDC

Gain

VCOMPP

Phase

Setting

Language

Set

Rev.

Set

Video Mode

Set

■Caution Never click "Initialize" or the following items in the adjustment screen.

Cal Mode and Cal Data in the Calibration section (Default settings: 0) All in the Upload section LCD Type All in the Setting section

Page 9

REPAIR GUIDE

(2786)A 9

Installation of USB Driver (Windows98/98 Second Edition only)

The dedicated USB driver included in F/X Series Adjustment Program must be installed for Windows98 and Windows98 Second Edition. If the USB driver supplied with DiMAGE Xt has been installed on the computer, the adjustment program cannot be launched and an error message "camera is not connected" appears on the screen. Install the dedicated USB driver with one of the following procedures. <Type-1><Type-1>

<Type-1>

<Type-1><Type-1> If the USB driver supplied with DiMAGE Xt has never been installed, follow the procedure below.

1. Connect the camera to the computer via the USB cable. The "Add NEW Hardware Wizard" window appears.

2. Choose "Specify a location" in the dialog and select "Driver soft for Win.98" folder in the copied " ADJ Program" folder.

3. Click "Next" to start installation.

4. Follow the direction in the screen until "Finish" appears, and click "Finish".

5. After installing the driver completely, right-click on My Computer on the desktop, and click Property. The system property window appears.

6. Click the Device Manager tab. The device manager window appears.

7. Confirm that the following devices are listed in the device manager window. "MINOLTA DiMAGE F200" under the Disk drives "MINOLTA Digital Camera Mass Storage Driver" under the Universal Serial Bus controllers

<Type-2><Type-2>

<Type-2>

<Type-2><Type-2> If the USB driver supplied with DiMAGE Xt has already been installed, follow the procedure below.

1. Connect the camera to the computer via the USB cable.

2. Right-click on My Computer on the desktop, and click Property. The system property window appears.

3. Click the Device Manager tab. The device manager window appears.

4. Confirm that the following devices are listed in the device manager window. "MINOLTA USB WDM STORAGE" under the Disk drives "MINOLTA DiMAGE Xt" under the Universal Serial Bus controllers

5. Double click "MINOLTA DiMAGE Xt" under the Universal Serial Bus controllers.

6. Click the Driver tab and click "Update driver". The "Update Device Driver Wizard" window appears.

7. Select "Specify a location" in the dialog and select "Driver soft for Win.98" folder in the copied "ADJ Program" folder.

8. Click "Next" to start installation.

9. Follow the direction in the screen until "Finish" appears, and click "Finish".

10. After updating the driver completely, confirm that the following devices are listed in the device

manager window. "MINOLTA DiMAGE Xt" under the Disk drives "MINOLTA Digital Camera Mass Storage Driver" under the Universal Serial Bus controllers

<Memo>

<Memo><Memo> When the camera is connected to the computer, Serial number information is usable as the connecting

identification. If the serial number information involved in the camera is different from the recorded serial number of the adjustment program in the computer, the operating system automatically search the best driver for the device. When both USB drivers supplied with DiMAGE Xt and ADJ Program are installed in the computer, the operating system may select the USB driver supplied with DiMAGE Xt as a best driver. In this case, the adjustment program cannot be launched and an error message "Camera is not connected" appears on the screen. Install the dedicated USB driver with the above procedure <Type-2>.

Setup of Siemens Star Chart Image

The Siemens Star Chart is used in the lens adjustment on page 11. Prepare the chart with one of the following procedures. Copy the attached Siemens Star Chart on the last page in 2783 repair guide to enlarge to 11" x 17" or

A3 size paper (x1.414).

Launch Photoshop, then open the "Siemens Start Chart.bmp" file from the F/X Series Adjustment

Program CD, and print it to 11" x 17" or A3 size paper.

Page 10

10 (2786)A

Forcus Resylt

P0=3451 P1=199 C0=-4 C1=-18 C2=-16 STD_AFPOS=633

DscCalDi

Lens Adjustment (Focus in the Calibration section)

This adjustment creates the compensation data for LB value. Whenever after replacing the CP-1 Compl PWB (#0408), the PW-1 Compl PWB (#0432,0452), the ST-1 Compl PWB (#0406) or the Lens Assy (#3255-0600), be sure to perform the adjustment.

■ Equipment Required PC (IBM PC/AT Compatible Computer onto which the F/X Series Adjustment Program is installed) USB cable USB-500 AC Adapter AC-6 Siemens Star Chart Fluorescent Stand SQ967W

■ Preparation Light up the chart evenly with Fluorescent Stand SQ967W.

■ Adjustment

1. Turn the mode dial to Auto-recording position.

2. Press the up key (t) to set the lens to the telephoto position.

3. Set the Siemens Star Chart 150cm +/- 3cm apart from the front of the lens. (Fig.1) Be sure to align the center of the Siemens Star Chart with the center of the image on the LCD

REPAIR GUIDE

monitor.

4. Connect the camera to the computer with the USB cable USB-500, and start Adjustment Program (DscCalDi.exe).

5. Click "Focus" in the adjustment screen. "Execute AWB&AGC Gain Calibration. Yes or No" appears on the screen.

6. Click "Yes". The camera performs adjustment, then the Lens adjustment value is displayed on the screen. (Fig.

7. Confirm the "STD_AFPOS"and P0 reading is not 0 "zero". 0 "zero" means the adjustment failed. Check the setup and re-adjust.

8. Click "OK" to return to the adjustment screen.

Fig. 1Fig. 1

Fig. 1

Fig. 1Fig. 1

CameraCamera

Camera

CameraCamera

150cm150cm

150cm

150cm150cm

Fig. 2Fig. 2

Fig. 2

Fig. 2Fig. 2

Siemens Star ChartSiemens Star Chart

Siemens Star Chart

Siemens Star ChartSiemens Star Chart

±±

3cm3cm

3cm

±±

3cm3cm

Page 11

(2786)A 11

REPAIR GUIDE

AWB Adjustment (AWB in the Calibration section)

This adjustment creates the compensation data for WB output against color temperature of the light source. Whenever after replacing the CP-1 Compl PWB (#0408), the PW-1 Compl PWB (#0432,0452), the ST-1 Compl PWB (#0406) or the Lens Assy (#3255-0600), be sure to perform the adjustment. Perform this adjustment in darkroom.

■ Equipment Required PC (IBM PC/AT Compatible Computer with the F/X Series Adjustment Program is installed) USB cable USB-500 AC Adapter AC-6 Color Viewer LV-1450DC

■ Preparation

Perform the adjustment 30 minutes or longer after turning on the Color Viewer. The Color Viewer should be checked and adjusted according to its maintenance instruction on page 23 in 2783 repair guide.

■ Adjustment

1. Turn the mode dial to Auto-recording position.

2. Press the down key (w) to set the lens to the wideangle.

3. Set the camera and Color Viewer as illustrated in Fig 1.

4. Connect the camera to the computer with the USB cable USB-500, and start Adjustment Program (DscCalDi.exe).

5. Click "AWB" in the adjustment screen. "Execute AWB&AGC Gain Calibration. Yes or No" appears on the screen.

6. Click "Yes". The camera performs adjustment, then the AWB adjustment value is displayed on the screen.

7. Click "OK" on the screen to return to the adjustment screen.

Fig. 1Fig. 1

Fig. 1

Fig. 1Fig. 1

CameraCamera

Camera

CameraCamera

Color Viewer LV-1450DCColor Viewer LV-1450DC

Color Viewer LV-1450DC

Color Viewer LV-1450DCColor Viewer LV-1450DC

Page 12

12 (2786)A

Missing Pixel (Defect) Compensation Adjustment (in the LCD section)

The adjustment is an image correct function that can restore the bright spots at long exposure. Whenever after replacing the CP-1 Compl PWB (#0408), the PW-1 Compl PWB (#0432,0452), the ST-1 Compl PWB (#0406) or the Lens Assy (#3255-0600), be sure to perform the adjustment.

■ Equipment Required PC (IBM PC/AT Compatible Computer with the F/X Series Adjustment Program is installed) USB cable USB-500 AC Adapter AC-6

■ Adjustment

1. Turn the mode dial to Auto-recording position.

2. Connect the camera to the computer with the USB cable USB-500, and start Adjustment Program (DscCalDi.exe).

3. Click the scroll arrow of "Test" in the LCD section of the adjustment screen, and select "CCD Defect" from the pop-up menu of "Test". "CCD Defect Detection. Yes or No" appears on the screen.

4. According to the screen, click "Yes". The camera electronically makes 4-sec. exposure to map out dead pixels. Up to 512 pixels can be restored at a time. The number of the missing pixels is displayed on the screen. (Fig. 1)

REPAIR GUIDE

Fig. 1Fig. 1

Fig. 1

Fig. 1Fig. 1

DSC

Dsc Calibration

Cal.

CCD Results :

number=512

Copy

5. Click "OK" on the screen to return to the adjustment screen.

■ Adjustment Error ("Defect NG")

When the "Defect NG" appears during adjustment, take the following actions.

-Turn off the camera for 30 minutes or longer to cool down before re-adjusting.

-If the same error appears after re-adjustment, the CCD may be defective.

-Replace the Lens Barrel Assy (#3255-0600).

Page 13

(2786)A 13

REPAIR GUIDE

Missing Pixel (Black) Compensation Adjustment (in the LCD section)

The adjustment is an image correct function that can restore the black spots at exposure. Whenever after replacing the CP-1 Compl PWB (#0408), the PW-1 Compl PWB (#0432,0452), the ST-1 Compl PWB (#0406) or the Lens Assy (#3255-0600), be sure to perform the adjustment.

■ Equipment Required PC (IBM PC/AT Compatible Computer with the F/X Series Adjustment Program is installed) USB cable USB-500 AC Adapter AC-6 Color Viewer LV1450DC

■ Preparation Perform the adjustment 30 minutes or longer after turning on the Color Viewer.

■ Adjustment

1. Turn the mode dial to Auto-recording position.

2. Press the down key (w) to set the lens to the wideangle.

3. Set the Color Viewer from the front of the lens. (Fig.1)

4. Connect the camera to the computer with the USB cable USB-500, and start Adjustment Program (DscCalDi.exe).

5. Click the scroll arrow of "Test" in the LCD section of the adjustment screen, and select "CCD Black" from the pop-up menu of "Test". The camera electronically makes exposure to map out dead pixels. Up to 512 pixels can be restored at a time. The number of the missing pixels is displayed on the screen. (Fig. 2)

6. Click "OK" on the screen to return to the adjustment screen.

■ Adjustment Error ("Defect NG")

When the "Defect NG" appears during adjustment, the CCD may be defective.

-Replace the Lens Barrel Assy (#3255-0600).

Fig. 1Fig. 1

Fig. 1

Fig. 1Fig. 1

Fig. 2Fig. 2

Fig. 2

Fig. 2Fig. 2

DSC

Dsc Calibration

Cal.

CCD Black Results :

number=0

Copy

CameraCamera

Camera

CameraCamera

Color Viewer LV1450DCColor Viewer LV1450DC

Color Viewer LV1450DC

Color Viewer LV1450DCColor Viewer LV1450DC

Page 14

14 (2786)A

LCD Monitor Adjustment (HAFC/RGB Offset/Gain/R Bright/B Bright in the LCD section)

The adjustment sets the color balance and position of the LCD monitor. Whenever after replacing the CP-1 Compl PWB (#0408), the PW-1 Compl PWB (#0432,0452) or the ST1Compl PWB (#0406), be sure to perform the adjustment. For LCD Monitor Adjustment, Oscilloscope is required. This manual assumes the procedure with Digital Storagescope DS-8706. When using other model of the oscilloscope, the digital storage function is required.

■ Equipment Required PC (IBM PC/AT Compatible Computer with the F/X Series Adjustment Program is installed) USB cable USB-500 AC Adapter AC-6 Digital Storagescope DS-8706

■ Preparation

1. Remove the Cabinet Back (#0132/0152/0172) and LCD(#0460) from the body.

2. Solder 7 lead wires of the 5cm length to the designated test points (CL-410,CL411, CL412, CL413, CL414, CL416, GND) on the CP-1 Compl PWB (#0408). (Fig. 1)

3. Connect the flex of the Cabinet Back (#0132/0152/0172) and LCD(#0460) to the connectors (CN108 and CN352).It is unnecessary to fit the Cabinet Back (#0132/0152/0172) to the body.

REPAIR GUIDE

4. Turn the mode dial to Auto-recording position.

5. Connect the camera to the computer with the USB cable USB-500, and start Adjustment Program (DscCalDi.exe).

6. Check the LCD "HAFC" value in the adjustment menu, and select the same value from the pop-up menu by clicking the down button. (LCD turns to display as shown in Fig.2 by inputting the value. Confirm that the LCD is in the condition as shown in Fig.2 before measuring the waveform.)

Fig. 1Fig. 1

Fig. 1

Fig. 1Fig. 1

CL410

(XENB)

CL412(B)

CL413(G)

CL414(R)

CL416

(CSYNC)

GND

CL411 (COM)

Fig. 2Fig. 2

Fig. 2

Fig. 2Fig. 2

■LCD monitor adjustment items.

1.LCD H AFC Adjustment

2.LCD RGB Offset Adjustment

3.LCD Gain Adjustment

4.LCD Red Brightness Adjustment

5.LCD Blue Brightness Adjustment

6.LCD VcomPP

Adjust "3. LCD Gain" after completing "2. LCD RGB Offset" adjustment. Adjust "4. LCD Red Brightness" and "5. LCD Blue Brightness" after completing "3. LCD Gain" adjust-

ment.

The other adjustments can be done independently.

Page 15

REPAIR GUIDE

■ Setup of Digital Storagescope DS-8706

1. Connect the CH1 and CH2 probes to Digital Storagescope DS-8706.

2. Set the probe to the magnification "x1".

3. Set MENU of AUTO SET in the following orders.

1) Press the MENU button (3-1) to display the "f:MENU

SELECT".

2) Turn the FUNCTION dial (3-2) to select "MEASURE".

3) Press the FUNCTION dial.

4) Turn the FUNCTION dial to select "MEASURE(B)".

5) Press the FUNCTION dial.

The MEASURE(B) adjust window appears and "OFF" is high-lighted.

6) Turn the FUNCTION dial to select "[6]T".

7) Press the FUNCTION dial.

8) Press the MENU button so the menu disappears.

The clip of CH2 probe's GND is not used. Align the cursor with the center of the waveform as illus-

trated in Fig. 4.

■ Adjustment

1. LCD H AFC Adjustment (Horizontal Auto Frequency Control)

1) Connect the CH1 probe to CL416 and to the GND,

and the CH2 probe to CL410. Two waveforms appear.

2) Click the scroll arrow of "H AFC" in the LCD section of

the adjustment screen, and select the number from the pop-up menu of "H AFC" until the width-A reading (from the rise of CL416's waveform to the fall of CL410's waveform) meets the standard.

Fig. 5Fig. 5

Fig. 5

Fig. 5Fig. 5

3-13-1

3-1

3-13-1

CL410 (CH2)

CL416 (CH1)

Fig. 3Fig. 3

Fig. 3

Fig. 3Fig. 3

Fig. 4Fig. 4

Fig. 4

Fig. 4Fig. 4

(2786)A 15

○○○

○○○○○○

○○○

3-23-2

3-2

3-23-2

Standard: Width-A = 4.9 +/- 0.1 micro sec.

2. LCD RGB Offset Adjustment (Brightness Control)

1) Connect the CH1 probe to CL413 and to the GND.

2) A waveform appears. Click the scroll arrow of "RGB

Offset" in the LCD section of the adjustment screen, and select the number from the pop-up menu of "RGB Offset" until the waveform of CL413 meets the standard.

Standard: 0.5V +/- 0.1V

Fig. 6Fig. 6

Fig. 6

Fig. 6Fig. 6

CL410 (CH2)

CL416 (CH1)

0.5V ±

0.1Vp-p

CL413

Page 16

16 (2786)A

3. LCD Gain Adjustment (Contrast Control)

1) Connect the CH1 probe to CL413 and to the GND.

2) A waveform appears. Click the scroll arrow of "Gain" in the LCD section of the adjustment screen, and select the number from the pop-up menu of "Gain" until the waveform of CL413 meets the standard.

Standard (CL413): 3.4V +/- 0.1 V

4. LCD Red Brightness Adjustment (Red Signal Control)

1) Connect the CH1 probe to CL413 and to the GND, and the CH2 probe to CL414.

2) Two waveforms appear. Click the scroll arrow of "R Bright" in the LCD section of the adjustment screen, and select the number from the pop-up menu of "R Bright" until the waveform of CL414 meets the standard.

Fig. 7Fig. 7

Fig. 7

Fig. 7Fig. 7

Fig. 8Fig. 8

Fig. 8

Fig. 8Fig. 8

3.4V ±

0.1Vp-p

CL413

REPAIR GUIDE

5. LCD Blue Brightness Adjustment (Blue Signal Control)

1) Connect the CH1 probe to CL413 and to the GND, and the CH2 probe to CL412.

2) Two waveforms appear. Click the scroll arrow of "B Bright" in the LCD section of the adjustment screen, and select the number from the pop-up menu of "B Bright" until the waveform of CL412 meets the standard.

Standard (CL414): (VG - 0.1)V +/- 0.1 V

Standard (CL412): (VG + 0.15)V +/- 0.1 V

Fig. 9Fig. 9

Fig. 9

Fig. 9Fig. 9

CL413

(VG-0.1) ±0.1Vp-P

CL414

CL413

CL412

（VG+0.15）

±0.1Vp-p

Page 17

REPAIR GUIDE

6. LCD VcomPP Adjustment

1) Connect the CH1 probe to CL411 and to the GND.

2) A waveform appears. Click the scroll arrow of "VcomPP" in the LCD section of the adjustment screen, and select the number from the pop-up menu of "VcomPP" until the waveform of CL411 meets the standard.

Standard (CL411): 3.25V +/- 0.1 V

Fig. 10Fig. 10

Fig. 10

Fig. 10Fig. 10

(2786)A 17

3.25V ±

0.1Vp-p

CL411

Page 18

18 (2786)A

USB Storage Information Registration

For USB to work, you must input the correct USB storage information to the camera (#2786). Otherwise, problem may occur while the camera is connected to the computer via USB cable. Always ensure that the USB storage information after repairing it . Whenever after replacing the CP-1 Compl PWB (#0408), be sure to perform the USB storage information registration.

■ Equipment Required PC (IBM PC/AT Compatible Computer with the F/X Series Adjustment Program is installed) USB cable USB-500 AC Adapter AC-6

■ Procedure

1. Turn the mode dial to Auto-recording position.

2. Connect the camera to the computer with the USB cable USB-500, and start Adjustment Program (DscCalDi.exe).

3. Click "Get" in the USB Storage section of the adjustment screen. (Fig. 1)

4. Ensure that USB storage information as below appears on the computer's screen.

VID :MINOLTA PID :DIMAGE Xt

REPAIR GUIDE

Serial :Serial number of the camera Rev. :1.00 If any information appears incorrectly, type the correct data as above, then click "Set" at the left-bottom corner the computer's screen or click "Set" next to each USB storage information individually.

■ Caution

Be sure to confirm the USB Storage Information is displayed as above. Once any wrong information is registered, cancellation is impossible. Especially, "VID" and "PID" are important to connect the camera to the computer. If the information is wrong, the camera cannot be activated in adjustment mode. In this case, replacing the CP-1 Compl PWB (#0408) is required. When more than one camera is connected to the computer, serial number information is usable as their identification.

Fig. 1Fig. 1

Fig. 1

Fig. 1Fig. 1

Calibration

AWB

Focus

UV Matrix

Cal Mode

Cal Data

USB storage

VID

Get

PID

Set

Upload

Firmware

Image

Initialize

EVF

LCD Type

LCD

R Bright

RGB Offset

Tint

VCO

H AFC Test

Serial

Set

Rev.

B Bright

Gain

Phase

Set Set

VCOMDC

VCOMPP

Setting

Language

Video Mode

Page 19

(2786)B 19

REPAIR GUIDE

Measuring Instruments, Tools and Jigs

■IBM PC/AT compatibles running Windows98, Windows98 Second Edition or Windows 2000 Professional and with a USB port as standard interface (Photoshop 6.0 is required for Windows 2000 Professional.) IBM PC/AT compatibles computer running Windows95 is useful for the performance check with a card drive and an SD memory card adapter

■A 640 x 480 dots or greater Color Monitor capable of displaying 32000 or greater colors

■Adobe Photoshop

■USB cable USB-500

■Digital Storagescope DS-8706

■Luminance Box (L-2101, L-2111) or Multi Camera Tester (EF-8301)

■DC Power Supply (PR18-5A or MTR 18-3)

■Digital Multimeter (Fluke 83)

■Camera Leak Tester (CL-1101 or CL-1201)

■Macbeth Color Checker <2755-0008-75>

■White Fluorescent (FLW10W) <2757-0007-75> or White Fluorescent (FLW15W) <2757-0012-75>

■B.C. Check Power Adapter for 2760 <2760-0013-76>

■Resolving Power Chart (W) <2766-0005-75>

■Resolving Power Chart (T) <2766-0005-76>

■Color Calculator Ⅱ <2766-0008-75>

■F/X Series Adjustment Program CD Ver.1.0 <7981-5003-01> *1

■Reflection Paper II <7981-3001-52>

■Color Viewer LV-1450DC <7981-8105-01> *2

■Fluorescent Stand SQ967W <7981-9012-61>

■Light Source-A (Tungsten; See Light Source-A Maintenance.)

■Light source-C (Light source-A + Color Temperature Filter LB B16)

Color Temperature Filter LB B16 <2757-0005-75>

■SD Memory Card (for test image storage)

■AC Adapter AC-6

■Tripod

*1 : F/X Series Adjustment Program is usable with 2776,2777,2783,2785,2788 and 2786. *2 : Input voltage :100 to 240V

Change the adapter plug acording to each situation.

MINOLTA DIMAGE XT Service Manual Repair Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

■Precautions

Chemicals

Plastic parts

PCBs

Discharge

ST-1 Compl PWB,PW-1 Compl PWB Disassembly

■PWB Diagram

Adjustments and Checks Required After Repair

Adjustment sequence

Instruction for Adjustment Program

Lens Adjustment (Focus in the Calibration section)

AWB Adjustment (AWB in the Calibration section)

Missing Pixel (Defect) Compensation Adjustment (in the LCD section)

Missing Pixel (Black) Compensation Adjustment (in the LCD section)

LCD Monitor Adjustment (HAFC/RGB Offset/Gain/R Bright/B Bright in the LCD section)

USB Storage Information Registration

Measuring Instruments, Tools and Jigs