Yashica TL Electro-X Service Manual
Possession of this information does not make you a camera repairman.
Most beginners ruin the first camera they open. Practice on something expendable.
I'm not responsible for your errors!
This was typed and scanned in from the Yashica manual. I fixed one
or two minor spelling and grammatical errors, but that's it. In
some places the phrasing is unclear and sometimes the references almost
seem to be circular. I didn't write it. On top of that,
I haven't even had occasion to open my TL Electro-X yet, so I probably don't
have the answers to any questions you may have. Most of this does
seem to make sense after reading some of the first Tomosy book though.
Alan Corey 5/24/1999
Table of Contents
- 1) Principles of Operation
- 1.1) Exposure readout circuit
- 1.2) Shutter Circuit
- 1.3) ASA Film speed setting
- 2) Electical diagrams
- 3) Testing and measuring instruments
- 4) Method of Repair
- 4.1) Battery checker circuit
- 4.1.1) Battery checker lamp fails to turn on
- 4.1.2) Improper voltage range
- 4.2) Malfunction of the exposure readout circuit
- 4.2.1) Both the "OVER" and "UNDER" indicator lamps fail to turn on
- 4.2.2) "UNDER" indicator lamp turns on normally, but "OVER" lamp
fails to light, or "OVER" lamp functions normally, but "UNDER"
lamp fails to turn on.
- 4.2.3) "OVER" indicator lamp turns on continuously and "UNDER"
lamp fails to turn on.
- 4.2.4) "UNDER" indicator lamp turns on continuously and "OVER"
lamp fails to alight.
- 4.2.5) Adjustment of the exposure readout circuit.
- 4.3) Shutter circuit
- 4.3.1) Shutter speed
- 4.3.2) Shutter remains open
- 4.3.3) Shutter closes automatically at "B" setting
- 4.3.4) Adjustment of the shutter speed
This manual contains matters necessary for repair and servicing of
the Yashica TL Electro-X.
The Yashica TL Electro-X incorporates the following functional features
which make it completely different from other focal shutter single-lens
- Thru-the-lens exposure readout system which does not require an
exposure meter and provides measurement of the correct exposure at
stopped-down aperture through preselection of either the lens aperture
or shutter speed.
- Electronic-controlled focal plane shutter affording an infinite range
of intermediate shutter speeds (and providing faithful function at
1/1000 sec. even when battery power is exhausted).
Its exposure readout and electronic shutter systems follow the pattern of
those featured in the Lynx-5000E (14E) and Electro 35, and their merits are
outlined in their respective repair manuals. Generally speaking, therefore,
the Yashica TL Electro-X can be said to be an equipment which offer all
advantanges of the above-mentioned cameras.