Yashica-E Exposure System (01)
Yashica-E
Japanese Medium Format (6x6) TLR with an Auto-exposure shutter.
Exposure System. Trapped Needle, Phase 1.
Here you see that part of the exposure system which translates the electrical current coming from the Selenium Cell into the mechanical position used for the Diaphragma opening.
The electric current flowing from the Selenium Cell passes through the Lightmeter Coil.
The Lightmeter has 2 Needles, one visible through the meters windows (see 1) and one used for the exposure system (see 2).
Now, during the depression movement of the Release Button 2 Plates are moved towards the Lightmeter in de direction of the green arrow. The Bottom Plate (see 4) which has a flat front surface and the Upper Plate (see 5) which has a curved and stepped front surface (see 6).
The bottom Plate (4) reaches the Needle (2) first. Its flat front surface "traps" the Needle against an Anvil (see 3).
The arrow (see 7) shows were the Needle got trapped in this instance.
This is the first Phase.
.
.
WARNING :
This image is intended as a guide for the more experienced camera service man. If you have no experience in camera repair please do yourself a favor and send your camera to a professional service shop. It would be a pity to lose a vintage camera in a failed repair attempt.
Yashica-E Exposure System (01)
Yashica-E
Japanese Medium Format (6x6) TLR with an Auto-exposure shutter.
Exposure System. Trapped Needle, Phase 1.
Here you see that part of the exposure system which translates the electrical current coming from the Selenium Cell into the mechanical position used for the Diaphragma opening.
The electric current flowing from the Selenium Cell passes through the Lightmeter Coil.
The Lightmeter has 2 Needles, one visible through the meters windows (see 1) and one used for the exposure system (see 2).
Now, during the depression movement of the Release Button 2 Plates are moved towards the Lightmeter in de direction of the green arrow. The Bottom Plate (see 4) which has a flat front surface and the Upper Plate (see 5) which has a curved and stepped front surface (see 6).
The bottom Plate (4) reaches the Needle (2) first. Its flat front surface "traps" the Needle against an Anvil (see 3).
The arrow (see 7) shows were the Needle got trapped in this instance.
This is the first Phase.
.
.
WARNING :
This image is intended as a guide for the more experienced camera service man. If you have no experience in camera repair please do yourself a favor and send your camera to a professional service shop. It would be a pity to lose a vintage camera in a failed repair attempt.