|
| |
REPAIR ANO ADJUSTMENT | 1. Unclear shadows ap1>91.1r in the viewiield during observation | |
2. Brightness | ||
| ||
|
|
REPAIR ANO ADJUSTMENT (B, F, ER and UW-tube)
1.Unclear Shadows Appear in the Viewfield During Observation
Cause: ( 1) Finger marks, large dust or other dirt remain on the light incidence or exit surface ot prism @ (@ and @) (other part numbers added in parenthesises in this way means those used for
(2)Separation of light retlecting silver layer on the prism.
(3)Crack in the prism.
<Repair and Adjustment >
ln the case of (!) | Wipe off dirt usmg a doth or lens tissue soaked with a triíle of absolute alcohol | |
| (ethanol or methanol). | |
ln the case of (2) or (3) | Replace the prism. | |
Procedure
1)Referring to Disassembly procedure (P.22, 23), disassemble the depression prism unit.
2)C1ean prism @ (@ and @).
3)For replacement, strike out the prism @ C@) and @) with a wooden hammer. Stick the new one.
4)When replacing, do positioning of the new prism, referring to adjustment (P. 40 - 42 and 46).
2.Brightneu Fall-off in the Circumferenca of Viewfield
Cause: Incorrect positions of prism 1§ (@ and G9 )
<Repair and Adjustment > Make positional adjustment.
Procedure
Refer to the procedure mentioned above in l.
- 35 -
