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SAL70400G2 (4-5.6/70-400 G SSM Ⅱ) (70-400mm F4-5.6 G SSM Ⅱ)

4)  Rotate the focus from the infinity end to the near end and from the near end to the infinity end and confirm the position of the focus 

brush.

5)  After finishing the adjustment, apply the adhesive bond (B-10) to the heads of screws.

To replace the MR sensor, refer to  4-10-2. Replacing MR Sensor . To attach and detach the MR sensor without replacing it, refer to  4-10-1. 
Attaching/Detaching MR Sensor .

When attaching the MR sensor, attach it with the washers installed correctly as they were.
Before detaching the MR sensor, memorize the positions of each washer.

When attaching a new MR sensor, use a 0.1 mm washer (4-457-318-01) for the MR Adjustment Washer (upper) as shown in Fig. 4-10-1, and 
a washer whose thickness is adjusted using the procedure in Fig. 4-10-2 for the MR Adjustment Washer (lower).

MR Sensor

MR Adjustment Washer (upper)

(0.1 mm)

MR Adjustment Washer (lower)

(0.1 or 0.2 mm)

Fixed Barrel Assy

Part No.

Thickness (mm)

4-457-318-01

0.1

4-457-318-21

0.2

  Removed washers are reusable. However, when the MR sensor has been replaced with a new one, do not use the washers at the previous locations 

and adjust them using the following procedure.

Install one 0.2 mm washer and
two 0.1 mm washers (0.4 mm
in total) for the MR Adjustment 
Washer (lower).

Reduce a thickness of
0.1 mm for the MR Adjustment
Washer (lower).

Reduce a thickness of
0.2 mm for the MR Adjustment
Washer (lower).

Increase a thickness of
0.1 mm for the MR Adjustment
Washer (lower) and install it.

Slightly shift the MR sensor with its
screws loosened, and retry MR
sensor check while changing the
MR sensor position.

If the MR sensor check still fails,
replace the MR sensor and perform
this procedure from the beginning.

Start

End

OK

NG

Perform

“4-10-3. Checking

MR Sensor

”

MR sensor
check
(upper-limit)

MR sensor
check
(lower-limit)

Final value
determined

OK

OK

NG

NG

Perform

“4-10-3. Checking MR

Sensor

” again.

MR sensor
check
(center)

Perform

“4-10-3. Checking

MR Sensor

” once

again.

In the MR sensor washer adjustment, the center value of the values obtained successfully in the MR sensor check (upper-limit) and the MR 
sensor check (lower-limit) is determined as the final value. After successful MR sensor check (center), apply bond (B-10) to the two screw 
heads as shown below.

MR Sensor Assy

Apply the adhesive 
bond (B-10)

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SAL70400G2 (4-5.6/70-400 G SSM Ⅱ) (70-400mm F4-5.6 G SSM Ⅱ)

Equipment (Only the specific equipment is listed.)
•   Adhesive Bond (B-10)
•   Half Completion JIG

  Please make a Half Completion JIG in each service station.

 

For how to make the Half Completion JIG, refer to  Note 6  in  4-1-1. List of Service Tools and Equipment .

In this check, confirm that the MR sensor check (upper-limit), the MR sensor check (lower-limit), and the MR sensor check (center) suc-
cessfully end for both  (2) Adjusting MR (Adjusting MR sensor position)  and  (3) Checking MR.

(1) Preparation
Installation procedure of Half Completion JIG and the checking lens
1.  The Half completion JIG is installed on the the checking lens with two screws.
2.  Connect F Encoder flexible board, Z Encoder flexible board, MR flexible board and SSM flexible board.

Finished Inspection JIG

Main PC Board Assy

SSM Flexible
Board

Z Encoder
Flexible Board

F Encoder
Flexible Board

MR Flexible
Board

 

(2) Adjusting MR (Adjusting MR sensor position)
1)  Connect the equipment to the checking lens. (Refer to  4-7-2. Connection of Finished Inspection JIG II/Half Completion JIG and Start-

up of Lens Adjustment Program (ActuatorCheckerSSM) .)

2)  Start the lens adjustment program (ACSSM-S-VerX.XX.exe).
3)  Click [Setup] and perform initial settings. (Refer to  4-7-3. Initial Setting of Lens Adjustment Program (ActuatorCheckerSSM) .)
4)  Click [MR WavesCheck (Manual)] of Lens Adjustment Program.
5)  A waveform appears on the window.
6)  Check waveform changes by rotating the focus ring.
7)  Confirm that the waveform is larger than the inner circle, and then click [OK].

  The waveform is not necessarily displayed at the center of the window.

 

There is no problem when the waveform is larger than the inner circle even if the waveform is not positioned at the center of the window.

 

  If a desired waveform is not obtained, slightly shift the MR sensor with its screws loosened and check the waveform while changing the MR 

sensor position.

(3) Checking MR
1)  Connect the equipment to the checking lens. (Refer to  4-7-2. Connection of Finished Inspection JIG II/Half Completion JIG and Start-

up of Lens Adjustment Program (ActuatorCheckerSSM) .)

2)  Start the lens adjustment program (ACSSM-S-VerX.XX.exe).
3)  Click [Setup] and perform initial settings. (Refer to  4-7-3. Initial Setting of Lens Adjustment Program (ActuatorCheckerSSM) .)
4)  Click [Adjust & Check MR].

 

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SAL70400G2 (4-5.6/70-400 G SSM Ⅱ) (70-400mm F4-5.6 G SSM Ⅱ)

5)  Enter the upper three digits of the value printed on the flexible board of the ultrasonic motor (stator).

 

Example: When the value is  218

218076

6) Click [OK[Ent]].
 

When no problem is found,  OK  appears. If  OK  does not appear, retry the procedure in  (2) Adjusting MR (Adjusting MR sensor po-
sition) .

1.  Attach the checking lens to the equipment. (Refer to  4-7-2. Connection of Finished Inspection JIG II/Half Completion JIG and Startup 

of Lens Adjustment Program (ActuatorCheckerSSM) .)

2.  Start up the lens adjustment program (ActuatorCheckerSSM).
3.  Click [Setup] and perform the initial setting. (Refer to  4-7-3. Initial Setting of Lens Adjustment Program (ActuatorCheckerSSM) .)

 When the Multi Serial window opens, take the following actions.

 

 

Process No. You need not enter process number.

 

 

Serial No. When the mount block assy is replaced, enter a serial number.

 

1. Adjustment/Inspection Method
1)   Click [Start[Ent]].
2)   Operate as instructed in the menu.

 

2.  Adjustment/ Inspection Item
1)   Write 

⊿

SB

2)   Zoom Pattern
3)   LVDD1 Consumption Current
4)   AF/MF Switch
5)   Focus Hold Button
6)   Focus Pattern (Motor)
7)   Adjust & Check MR
8)   Adjust Driving Frequency & Gain
9)   Focus Load FB 
10) Focus Drive

11) MR Waves Check (Manual)
12) Check Sounds
13) Search Zoom-Adj
14) Search Focus-Adj

  These two items are not adjusted automatically in case of starting Adjustment/Inspection with clicking [Start[Ent]].

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SAL70400G2 (4-5.6/70-400 G SSM Ⅱ) (70-400mm F4-5.6 G SSM Ⅱ)

4-11-3. ⊿SB Check/Write

1) Click 

[Write 

⊿

SB].

 [Select 

⊿

SB] window is displayed.

 

At this time, the current 

⊿

SB is highlighted.

2) Write the 

⊿

SB based on the error amount that was confirmed by the  4-6. Focusing Error Amount Check .

 Example)
 

When changing the focus to the front (Front focus):   Select the left side of the button (current 

⊿

SB) that is highlighted and press the 

[Enter] key.

 

When changing the focus to the rear (Rear focus): 

 Select the right side of the button (current 

⊿

SB) that is highlighted and press the 

[Enter] key.

 

 (0) 

 (6)

 

To the front focus  To the rear focus

3) Performs the 4-6. Focusing Error Amount Check , and check that the error amount is smaller than the reference value. 
 

If the error amount is larger than the reference value, perform [Write 

⊿

SB] again, and repeat steps 1) to 3) until the error amount be-

comes less than reference value.