Minolta A2 Repair Manual
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Minolta A2 Repair Manual

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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
Precautions ------------------------------------------------- 2
Discharge --------------------------------------------------- 3
compl PWB TB-3/CA-2/TC-1 --------------------- 12
ST-1/PW-1/TB-1/SY-2/DM-1 ---------------------- 18
moving barrel. --------------------------------------- 22
group assy. --------------------------------------------- 27
Arrangement plan of PCB ----------------------------- 29
REPAIR GUIDE
Page
CONTENTS
(in the adjustment mode). -------------------------- 33
version readout ---------------------------------------- 34
adjusting the CCD perspective. -------------------- 35
Adjustment of CCD perspective ----------------------- 37
Sensitivity adjustment (GAIN) ----------------------- 39
(CCD CENTER) --------------------------------------- 40
(ACT DRV FREQ) ------------------------------------ 41
(SERVO GAIN) ---------------------------------------- 41
(GYRO OFFSET) ------------------------------------- 42
(DEFECT PIXEL) ------------------------------------ 43
Adjustment of white balance (WB) ------------------- 45
(SHAKE OFFSET) ----------------------------------- 48
Setting date and time (TOD) -------------------------- 49
Error code on adjustment program ------------------ 50
Measuring instrument ---------------------------------- 51
Subsidiary Materials ------------------------------------ 52
(2720)A 1
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Summary of Contents for Minolta A2

  • Page 1: Table Of Contents

    (2720)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 CONTENTS Page Precautions ------------------------------------------------- 2 Required adjustment, setting and confirmation Discharge --------------------------------------------------- 3 items after repairing (exchanging parts) -------- 30 1.

  • Page 2: Precautions

    2 (2720)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.

  • Page 3: Discharge

    (2720)A 3 Discharge Before disassembly, be sure to discharge the main condenser in the following manner. (Fig. 1) Fig. 1 Fig. 1 ■ ■ ■ ■ ■ Fig. 1 Fig. 1 Fig. 1 Short-circuit with discharger or resistor of 200-300 ohm/3w. Check voltage to make sure it is discharged.

  • Page 4: Disassembly Of The Exterior Parts

    4 (2720)A 1. Disassembly of the exterior parts Disassemble it in order of step 1to 22 Disassemble it in order of step 1to 22 Disassemble it in order of step 1to 22 Disassemble it in order of step 1to 22 Disassemble it in order of step 1to 22 ■...
  • Page 5 (2720)A 5 Fig. 1 Installation of the cabinet side Fig. 1 Installation of the cabinet side Fig. 1 Installation of the cabinet side Fig. 1 Installation of the cabinet side Fig. 1 Installation of the cabinet side 1. Arrange the FPC of the cabinet side as shown on the figure. 1.
  • Page 6 6 (2720)A 2. Stick 2782- 1163 at the points on the figure. 2. Stick 2782- 1163 at the points on the figure. 2. Stick 2782- 1163 at the points on the figure. 2. Stick 2782- 1163 at the points on the figure. 2.
  • Page 7 (2720)A 7 Fig.5 Assemble the cabinet top Fig.5 Assemble the cabinet top Fig.5 Assemble the cabinet top Fig.5 Assemble the cabinet top Fig.5 Assemble the cabinet top Stick 1167, 1113, 2782-1115 and 2782-1118 as the direction. Stick 1167, 1113, 2782-1115 and 2782-1118 as the direction. Stick 1167, 1113, 2782-1115 and 2782-1118 as the direction.

  • Page 8: Disassembly Of The Compl Pwb Tb-3, Lcd

    8 (2720)A 2. Disassembly of the compl PWB TB-3, LCD Disassemble it in order of step 1 to 29. ■ ■ ■ ■ ■ Fig. 3 Fig. 3 Fig. 3 Fig. 3 Fig. 3 ■ ■ ■ ■ ■ Fig. 1 Fig.
  • Page 9 (2720)A 9 Fig. 1 Assembly of assy cabi back Fig. 1 Assembly of assy cabi back Fig. 1 Assembly of assy cabi back Fig. 1 Assembly of assy cabi back Fig. 1 Assembly of assy cabi back Assembly of LCD part Assembly of LCD part Assembly of LCD part Assembly of LCD part...
  • Page 10 10 (2720)A Fig.2 Assembly of the assy cabi back. Fig.2 Assembly of the assy cabi back. Fig.2 Assembly of the assy cabi back. Fig.2 Assembly of the assy cabi back. Fig.2 Assembly of the assy cabi back. Installation of LCD part Installation of LCD part Installation of LCD part Installation of LCD part...
  • Page 11 (2720)A 11 4. Keep the LCD part opening as shown on the figure, and stick the assy flexible PWB LCD with 2782-1131. 4. Keep the LCD part opening as shown on the figure, and stick the assy flexible PWB LCD with 2782-1131. 4.

  • Page 12: Disassembly Of The Assy Cabi Front

    12 (2720)A 3. Disassembly of the assy cabi front, compl PWB TB-3/CA-2/TC-1 Disassemble it in order of step 1 to 23. ■ ■ ■ ■ ■ Fig. 6 Fig. 6 Fig. 6 Fig. 6 Fig. 6 Fig. 2 Fig. 2 Fig.
  • Page 13 (2720)A 13 Fig.1 Installation of the assy cabi front. Fig.1 Installation of the assy cabi front. Fig.1 Installation of the assy cabi front. Fig.1 Installation of the assy cabi front. Fig.1 Installation of the assy cabi front. 1. Stick 2782-1215 onto 3256-2231 as shown on the figure. 1.
  • Page 14 14 (2720)A 4. Harness from the strobo part as shown on the figure. 4. Harness from the strobo part as shown on the figure. 4. Harness from the strobo part as shown on the figure. 4. Harness from the strobo part as shown on the figure. 4.
  • Page 15 (2720)A 15 Fig. 4 Stick 1210 and 2782-1163 Fig. 4 Stick 1210 and 2782-1163 Fig. 4 Stick 1210 and 2782-1163 Fig. 4 Stick 1210 and 2782-1163 Fig. 4 Stick 1210 and 2782-1163 Stick 1210 and 2782-1163 on the position shown on the figure. Stick 1210 and 2782-1163 on the position shown on the figure.
  • Page 16 16 (2720)A Fig.6 Assembly of the strobo Fig.6 Assembly of the strobo Fig.6 Assembly of the strobo Fig.6 Assembly of the strobo Fig.6 Assembly of the strobo 1. Apply G-85 to the directed part (sliding part) of the hinge EVF flash. 1.
  • Page 17 (2720)A 17 7. Apply G-114 to the directed part of the cover bottom strobo. 7. Apply G-114 to the directed part of the cover bottom strobo. 7. Apply G-114 to the directed part of the cover bottom strobo. 7. Apply G-114 to the directed part of the cover bottom strobo. 7.

  • Page 18: Disassembly Of The Compl Pwb

    18 (2720)A 4. Disassembly of the compl PWB SY-1/ST-1/PW-1/TB-1/SY-2/DM-1 Disassemble it in order of step 1 to 22. Fig. 1, 2, 3 Fig. 1, 2, 3 Fig. 1, 2, 3 ■ ■ ■ ■ ■ Fig. 1, 2, 3 Fig. 1, 2, 3 Fig.
  • Page 19 (2720)A 19 Fig.1 Assembly of the cover battery Fig.1 Assembly of the cover battery Fig.1 Assembly of the cover battery Fig.1 Assembly of the cover battery Fig.1 Assembly of the cover battery 1. Assemble 2782-1258 under 2782-1257. 1. Assemble 2782-1258 under 2782-1257. 1.
  • Page 20 20 (2720)A 5. Insert and install 2782-1271 and 2782-1260 respectively into the groove and the hole of the holder 5. Insert and install 2782-1271 and 2782-1260 respectively into the groove and the hole of the holder 5. Insert and install 2782-1271 and 2782-1260 respectively into the groove and the hole of the holder 5.
  • Page 21 (2720)A 21 2. Apply G-85 to the directed part of 2782-1280. 2. Apply G-85 to the directed part of 2782-1280. 2. Apply G-85 to the directed part of 2782-1280. 2. Apply G-85 to the directed part of 2782-1280. 2. Apply G-85 to the directed part of 2782-1280. 3.

  • Page 22: Disassembly Of The Ccd Holder Assy, The Outer Barrel Assy And The 1St Lens Group Moving Barrel

    22 (2720)A 5. Disassembly of the CCD holder assy, the outer barrel assy and the 1st lens group moving barrel. Disassemble them in order of step 1 to 8. B B - 5 0 B B - 5 0 B B - 5 0 B B - 5 0 B B - 5 0 (CCD after the perspective control)
  • Page 23 (2720)A 23 Fig.1 Installation of the 1st lens group moving barrel Fig.1 Installation of the 1st lens group moving barrel Fig.1 Installation of the 1st lens group moving barrel Fig.1 Installation of the 1st lens group moving barrel Fig.1 Installation of the 1st lens group moving barrel The stopper of the hood valve on the 1st lens group moving barrel should be in the position shown on the The stopper of the hood valve on the 1st lens group moving barrel should be in the position shown on the The stopper of the hood valve on the 1st lens group moving barrel should be in the position shown on the...
  • Page 24 24 (2720)A Fig.3 Sticking 9384-2290-90 Fig.3 Sticking 9384-2290-90 Fig.3 Sticking 9384-2290-90 Fig.3 Sticking 9384-2290-90 Fig.3 Sticking 9384-2290-90 Stick 9384-2290-90 (1.5x10mm) onto the hood index of the 1st lens group moving barrel and the projected Stick 9384-2290-90 (1.5x10mm) onto the hood index of the 1st lens group moving barrel and the projected Stick 9384-2290-90 (1.5x10mm) onto the hood index of the 1st lens group moving barrel and the projected Stick 9384-2290-90 (1.5x10mm) onto the hood index of the 1st lens group moving barrel and the projected Stick 9384-2290-90 (1.5x10mm) onto the hood index of the 1st lens group moving barrel and the projected...

  • Page 25: Disassembly Of The Outer Barrel Assy

    (2720)A 25 6. Disassembly of the outer barrel assy Disassemble it in order of step 1 to 12. ■ ■ ■ ■ ■ Fig. 2 Fig. 2 Fig. 2 Fig. 2 Fig. 2 Fig. 1 Fig. 1 Fig. 1 ■ ■ ■ ■ ■ Fig. 1 Fig.
  • Page 26 26 (2720)A Fig.1 Sticking the zoom encoder FPC assy Fig.1 Sticking the zoom encoder FPC assy Fig.1 Sticking the zoom encoder FPC assy Fig.1 Sticking the zoom encoder FPC assy Fig.1 Sticking the zoom encoder FPC assy Apply B-60 to the directed parts of the outer barrel assy and the zoom encoder FPC assy. Apply B-60 to the directed parts of the outer barrel assy and the zoom encoder FPC assy.

  • Page 27: Disassembly Of The 4Th Moving Barrel Assy, The 3Rd Moving Barrel Assy And The 2Nd Lens Group Assy

    (2720)A 27 7. Disassembly of the 4th moving barrel assy, the 3rd moving barrel assy and the 2nd lens group assy. 7. Disassembly of the 4th moving barrel assy, the 3rd moving barrel assy and the 2nd lens group assy. 7.
  • Page 28 28 (2720)A Fig. 1 Installation of the zoom cam barrel Fig. 1 Installation of the zoom cam barrel Fig. 1 Installation of the zoom cam barrel Fig. 1 Installation of the zoom cam barrel Fig. 1 Installation of the zoom cam barrel Insert the zoom cam barrel at the point where the 2nd lens group guide pin on the cutout part on the Insert the zoom cam barrel at the point where the 2nd lens group guide pin on the cutout part on the Insert the zoom cam barrel at the point where the 2nd lens group guide pin on the cutout part on the...

  • Page 29: Arrangement Plan Of Pcb

    (2720)A 29 Arrangement plan of PCB Compl PWB SY-1 Compl PWB SY-1 Compl PWB SY-1 Compl PWB SY-1 Compl PWB SY-1 Compl PWB TB-3 Compl PWB TB-3 Compl PWB TB-3 Compl PWB TB-3 Compl PWB TB-3 Compl Compl Compl Compl Compl PWB ST-1 PWB ST-1...

  • Page 30: Required Adjustment, Setting And Confirmation Items After Repairing (Exchanging Parts)

    30 (2720)A Required adjustment, setting and confirmation items after repairing (exchanging parts) Adjust, set and confirm as the following table when the following parts are removed (exchanged). Follow the steps from the upper line to adjust. COMPL, COMPL, COMPL, COMPL, COMPL, Parts REFLECTOR...

  • Page 31: Related Adjustment And Required Setting Items

    (2720)A 31 Related adjustment and required setting items When each adjustment or setting is operated, be sure to follow the related adjustment and setting items listed blow. Number : Related adjustment items. Adjust and set in order of the number. : Related adjustment items.

  • Page 32: Preparing The 2782 Adjustment Program

    32 (2720)A Preparing the 2720 adjustment program PC for use The PC loaded on either Windows 98/98SE or 2000 Professional and USB terminal originally 40MB or more of available memory and 15MB or more of available hard-disk space VGA or more monitor capable of displaying at least 32,000 colors Details of the 2720 adjustment program CD 2720 adjustment program CD 2766_ADJ_USB...

  • Page 33: Starting Up The 2782 Adjustment Program (In The Adjustment Mode)

    (2720)A 33 Starting up the 2720 adjustment program (in the adjustment mode). Outline Connect the camera and PC with USB-500 and start up the camera in the "adjustment mode." "Adjustment mode" means the condition of that the camera can contact with the 2720 adjustment program in the PC.

  • Page 34: Contents Of The Adjustment Program And Cpu Version Readout

    34 (2720)A Contents of the adjustment program and CPU version readout Contents of adjustment program Item Sub item Operation/Display START Connecting 2720 adjustment program. FIRMWARE Displaying CPU version when the adjustment program is launched. Starting of each adjustmnet. Supplied service parts "DM-1 Compl. PWB" (0492) will be shipped after being adjusted.

  • Page 35: Setting The Camera And The Chart When Adjusting The Ccd Perspective

    (2720)A 35 Setting the camera and the chart when adjusting the CCD perspective. Set the camera and the chart (siemens star chart and LB adjustment chart II for 2766) in either way, 1 or 2 of the followings to adjust the CCD perspective. ■...
  • Page 36 36 (2720)A 2. In case of using a tripod Required equipment Tripod Siemens star chart (see P.51 Measuring instrument) LB adjustment chart II for 2766 Setting the camera and the chart 1. Mark in the center of the chart (siemens star chart or LB adjustment chart II for 2766) (Fig.1). 2.

  • Page 37: Adjustment Of Ccd Perspective

    (2720)A 37 Adjustment of CCD perspective Outline Adjust the position and inclination of the CCD. *See Setting the camera and the chart when adjusting the CCD perspective (P.35, 36). Use -1- the camera chart setting stand or -2- the tripod to set the position of the camera and the chart and adjust the CCD position.
  • Page 38 38 (2720)A Procedure of the adjustment 1. Set the position of the zoom ring "100." 2. Click "CCD AORI" of the adjustment menu. 3. Follow the message, "Please change a chart," set the LB adjustment chart II for 2766, and click "OK" (Fig.2).

  • Page 39: Sensitivity Adjustment (Gain)

    (2720)A 39 Sensitivity adjustment (GAIN) Required equipment Luminance box L-2101/L-2111 or multi camera tester: EF-8301 PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1. Start up the 2720 adjustment program. 2. Connect the camera and PC with USB-500, and click "START" after confirming the USB connection. 3.

  • Page 40: Adjusting The Center Part Of Ccd (Ccd Center)

    40 (2720)A Adjusting the center part of CCD (CCD CENTER) Required equipment Luminance box L-2101/L-2111 or multi camera tester: EF-8301 PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1. Start up the 2720 adjustment program. 2.

  • Page 41: Adjustment Of The Frequency For Camera Shaking (Act Drv Freq)

    (2720)A 41 Adjustment of the frequency for camera shaking (ACT DRV FREQ) Required equipment PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1. Start up the 2720 adjustment program. 2. Connect the camera and PC with USB-500, and click "START" after confirming the USB connection. 3.

  • Page 42: Adjustment Of The Gyro For Camera Shaking (Gyro Offset)

    42 (2720)A Adjustment of the gyro for camera shaking (GYRO OFFSET) Required equipment PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1. Start up the 2720 adjustment program. 2. Connect the camera and PC with USB-500, and click "START" after confirming the USB connection. 3.

  • Page 43: Adjustment Of The Defective Pixel (Defect Pixel)

    (2720)A 43 Adjustment of the defective pixel (DEFECT PIXEL) Required equipment Luminance box L-2101/L-2111 or multi camera tester: EF-8301 PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1. Start up the 2720 adjustment program. 2.

  • Page 44: Adjustment Of The Flash Gn (Fl Gno)

    44 (2720)A Adjustment of the flash GN (FL GNo) *Operate in the darkroom. Required equipment Tripod Gray chart: Standard reflection paper II PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment *Operate in the darkroom. 1.

  • Page 45: Adjustment Of White Balance (Wb)

    (2720)A 45 Adjustment of white balance (WB) Required equipment Color Viewer LV-1450DC Light balancing filter LB200 White chart PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 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.

  • Page 46: Adjustment Of The Focus (Fcs Inf Pos)

    46 (2720)A Adjustment of the focus (FCS INF POS) Required equipment Fluorescent Lamp FPL 27EX-N/Fluorescent light stand SQ967WA Siemens star chart (see P.51 Measuring instrument) PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1.

  • Page 47: Adjustment Of The Manual Focus Pi (Mf Pi)

    (2720)A 47 Adjustment of the manual focus PI (MF PI) Required equipment PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1. Start up the 2720 adjustment program. 2. Connect the camera and PC with USB-500, and click "START" after confirming the USB connection. Procedure of the adjustment 1.

  • Page 48: Adjustment Of The Camera Shaking Compensation (Shake Offset)

    48 (2720)A Adjustment of the camera shaking compensation (SHAKE OFFSET) Required equipment Vibration tester Shake offset chart (see P.51 Measuring instrument) PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1. Start up the 2720 adjustment program. 2.

  • Page 49: Destination Setting (Destination)

    (2720)A 49 DESTINATION Setting (DESTINATION) Be sure to perform Destination setting including confirmation. Required equipment PC with preinstalled the 2720 adjustment program USB-500 (USB cable) AC-1L/AC-11 Preparation of the adjustment 1. Start up the 2720 adjustment program. 2. Connect the camera and PC with USB-500, and click "START" after confirming the USB connection. Procedure of the adjustment 1.

  • Page 50: Error Code On Adjustment Program

    50 (2720)A Error code on adjustment program Error Code list item Error Condition item Error Condition Common Aperture control error Gyro Gyro offset (Pitch) Camera shake reset error Gyro offset (Yaw) Focus reset error ICVref Shutter control error Dark current (Pitch) Zoom data readout error Dark current (Yaw) Temperature data readout...

  • Page 51: Measuring Instrument

    (2720)A 51 Measuring instrument PC (AT convertible) with preinstalled Windows 98, 98SE or 2000. (USB port should be guaranteed its performance by the maker. Also, Adobe Photoshop 6.0 or later should be installed if Windows 2000 is installed on PC.) * It is possible to confirm the performance on PC with Windows 95 (AT convertible).

  • Page 52: Subsidiary Materials

    52 (2720)A Color balancing Filter LB200 Color balancing Filter LB200 Color balancing Filter LB200 Color balancing Filter LB200 Color balancing Filter LB200 Vibration tester <7981-9013-01> Vibration tester <7981-9013-01> Vibration tester <7981-9013-01> Vibration tester <7981-9013-01> Vibration tester <7981-9013-01> <2720-0002-75> <2720-0002-75> <2720-0002-75> <2720-0002-75>...

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