MINOLTA DIMAGE XT Service Manual Repair Guide

(2786)A 1

REPAIR GUIDE

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

1

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

2

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

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

1M

1M1M

ΩΩ

Ω

ΩΩ

GNDGND

GND

GNDGND

(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.

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.

4

3

REPAIR GUIDE

2

1

2

1

7

5

2

11

C

6

14

9

15

10

8

12

19

18

21

22

C

A

B

16

13

20

B

A

17

REPAIR GUIDE

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

2

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

1

(2786)A 5

5

7

4

6

2

3

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