Angle Adjustment Of Main Mirror And Sub-Mirror; Device - Nikon D300 Repair Manual

Angle adjustment of Main mirror and sub-mirror

※ Procedure: Follow the operating instructions of the tool for main/sub mirror angle-inspection (J19132).
・
Main mirror 45° adjustment
Caution: Before and after the adjustment, check the accuracy by moving the main mirror up- and downwards a
few times.
① Check for the right-left deviation
In case the result is out of standard, loose the two screws (#1523) and one screw (#1568), then make the
adjustment by moving the main mirror shaft PCB (#B10212).
② Check for the up-down deviation.
In case the result is out of standard, make the adjustment by turning the eccentric pin.
・
Sub-mirror 59° adjustment
Caution: Before and after the adjustment, check the accuracy by moving the main mirror up- and downwards a
few times. Confirm if the two-pronged part of the sub-mirror firmly fits in the eccentric pin.
①
Check for the up-down deviation
In case the result is out of standard, make the adjustment by turning the sub-mirror eccentric pin.
＜ Device ＞
1. For Main mirror adjustment
① Mirror angle inspection tool
② 45° angle mirror tool
③ Hexagonal wrench (φ1.5mm）
2. For sub-mirror adjustment
① Mirror angle inspection tool
② Hexagonal wrench (φ1.5mm）
#1523×2
#1568
Adhesive: Screwlock
※
Apply after the
adjustment
< Standard value >
Changed Page △ ×1
Caution： Do NOT release the shutter.
Set the (supplied) tilted mirror with the main mirror being slightly lifted
so that the sub-mirror of D300 does not touch the (supplied) tilted
mirror of the inspection tool.
Main mirror shaft base plate
#B10212
Main mirror
Left-right
deviation
Up-down
deviation
Distortion
- Ａ 12 ・
logo Q0310 forGraphic
① Mirror angle-inspection tool
Sub-mirror
±10'
±5'
±10' -15±15'
6'or less 6'or less
-
070509 Gdesign ito
INC
VBA20001-R.3720.A
Eccentric pin for the
sub-mirror
Eccentric pin for the
main mirror
-
△（Revision）
サービス
計画課
Ｍ
Feb.1st.2008