Kyocera TL Electro-X Bedienungsanleitung

Kyocera Nicht kategorisiert TL Electro-X

Lesen Sie kostenlos die 📖 deutsche Bedienungsanleitung für Kyocera TL Electro-X (18 Seiten) in der Kategorie Nicht kategorisiert. Dieser Bedienungsanleitung war für 15 Personen hilfreich und wurde von 2 Benutzern mit durchschnittlich 4.5 Sternen bewertet

Download PDF
Seite 1/18
Yashica TL Electro-X Service Manual
Table of Contents
* Foreword
* 1) Principles of Operation
o 1.1) Exposure readout circuit
o 1.2) Shutter Circuit
+ Principle of variation of the shutter speeds
+ Bulb exposure
o 1.3) ASA Film speed setting
* 2) Electical diagrams
o Schematic diagram
o Wiring diagram
* 3) Testing and measuring instruments
o Voltage stabilizer
o Insulating resistance m eter
o Focal plane shutter tester
o Standard light source
* 4) Method of Repair
o 4.1) Battery checker circuit
+ 4.1.1) Battery checker lamp fails to turn on
+ 4.1.2) Improper voltage range
o 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.
o 4.3) Shutter circuit
o 4.3.1) Shutter speed
o 4.3.2) Shutter remains open
o 4.3.3) Shutter closes automatically at "B" setting
o 4.3.4) Adjustment of the shutter speed
Foreword
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 reflex cameras:
1. 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.
2. 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.
Principles of operation
The circuitry of the Yashica TL Electo-X can be generally classified into the exposure
readout circuit, shutter circuit and battery checker circuit. The exposure readout circuit
and the shutter circuits are linked to each other with the aid of a slide resistor.
A coaxial dual variable resistor is employed for this purpose. Its top section forms the
balancing resistor (VR-1), while its bottom section functions as the shutter speed resistor
(VR-2).
The circuit pattern consists of a combination of the exposure readout circuit of the Lynx-
5000E (14E) and the shutter circuit of the Electro 35, and correlation between the
functions of these two circuits is maintained through incorporation of the variable
resistor.
1.1 Exposure Readout Circuit
The intensity of the light controlled by means of the diaphragm (exposure reading
through stopped-down) is sensed by the two CdS sensors incorporated in the pentaprism
housing on both sides of the viewfinder eyepiece.
Being a photoconductive cell, the CdS serves to vary the resistance value at a ratio
inversely proportional to the intensity of light to which it is exposed.
Because the CdS and the BALANCING resistor (VR-1) are series connected, the voltage
from the power supply is affected by the degree of resistance offered by both and the
voltage equivalent to the VR-1 is applied to (T5)-(T1).
Both the OVER and UNDER indicator lamps fail to turn on (indicating correct exposure)
when the voltage range at (T5)-(T1) is between 0.6 V and 1.0 V. The OVER indicator
lamp turns on when the voltage rises above this level and the UNDER indicator lamp
alights when it falls short of this range. Consequently, the procedure for setting the
correct exposure (indicated by the OVER/UNDER lamps failing to turn on) consists of
adjusting the VR-1 to a setting where a voltage supply of 0.6 V to 1.0 V will be
maintained at (T5)-(T1) as against the CdS resistance value.
1.2 Simultaneously with the setting of the resistance value of the VR-1 through
exposure readout, the shutter speed resistor (VR-2) which is set coaxially is adjusted
accordingly.
The trigger switch (SW-5) is adjusted to "ON" position when the shutter is a.
charged.
When the shutter release button is depressed, the power switch (SW-2) on b.
the shutter side is turned on, setting the power supply to the circuit. At this stage,
however, the Tr6 and Tr7 are at "ON" position because Tr5 is turned off. Consequently,
the magnet functions to hold the rear sector of the shutter.
c. At the next stage, the trigger switch is turned off and the electric current
controlled by the setting of the shutter speed resistor begins to flow and the charging of
the condensor C1 starts. Immediately after the trigger switch is turned off, the front
shutter sector is activated mechanically and starts its function.
The electric potential of the condenser C1 rises gradually and, when it d.
reaches a given (approx. 2.4 V), the Tr5 turns on and, simultaneously with this, the Tr6
and Tr7 are switched off. This cuts off the supply of electric power to the magnet which
then loses its force of attraction, causing the rear sector to commence operation.
e. As soon as the rear sector completes its run over the entire picture area,
the SW-2 is turned off, thus cutting off the supply of the electric power to the shutter
circuit and completing the shutter operation.
Principle of variation of the shutter speeds
The shutter speed is decided through setting of the shutter speed resistor
(VR-2).
If, for instance, only a very low resistance is offered by the VR-2, a large flow of electric
current is supplied to the condenser C1, necessitating only a very short period of time to
charge it to full capacity. In other words, the terminal voltage of the C1 rises to a given
value within a very short period of time, causing the rear sector to start to function with
hardly any time delay and thus providing fast exposure. If, on the other hand, a high
resistance is offered, a restricted flow of electric current is supplied, requiring a
considerable period of time before the terminal voltage of the C1 can reach level and thus
providing long exposure.
Bulb Exposure
An insulating material is set between the 2 sec. and B settings of the resistor -2 VR
and this serves to distinguish between the normal shutter speed resistor and Bulb resistor.
The SW-4 serves as this insulating material.
When the shutter speed control dial is adjusted to "B" setting, the brush of the VR-2
comes into contact with the Bulb resistor.
The Bulb switch (SW-6) turns off when the shutter release button is depressed and turns
on when the pressure is released.
When the shutter speed control dial is adjusted to "B" setting and the shutter release
button is depressed, the bulb resistor and the brown lead wire are cut off from the plus
circuit (pink) and, therefore, no electric power is supplied to the condenser C1. Because
the voltage at both terminals of the C1 fails to rise, the normal switching of the transistors
does not take place, causing the magnet to hold the rear shutter all along.
When pressure on the shutter release button is released, the SW-6 is turned on. This sets
the flow of electric current through the Bulb resistor, starts the charging of the C1 and
initiates the switching of the transistors, causing the rear sector to be released from its
original position and thus closing the shutter.
The Bulb resistor does not wield any effect on the shutter function itself over the duration
the shutter release button is depressed. It is rather employed as a protection for the
transistor, owing to the fact that a huge flow of current is supplied to the base of the Tr5
when pressure on the shutter button is released and the SW-6 is turned on. Without this
resistor serving as a protection, the transistor is liable to be damaged due to the sudden
high flow of electric current.
ASA film speed setting
The brush mounting ring of the BALANCING resistor (VR-1) is designed in such
a manner as to enable ready rotation other than through manipulation of the main spindle.
In other words, ASA film speed setting actually consists of rotating the VR-1
differentially without affecting the function of the VR-2.
Schematic diagram of the Yashica TL Electro-X
The small version:
The large version (for printing):
Yashica TL Electro-X wiring diagram
Here is a small (600x843) version of the diagram. It isn't all that legible but I was trying
to keep the file size down. You can click for a larger (2017x2835, 168Kbyte, here
300DPI) version of the diagram. The larger version is suitable for printing at 300 DPI
and should give an image 6.7 x 9.5 inches (17x24 cm).
Testing and Measuring Instruments
The use of the following instruments is recommended in inspection and repair of
the Yashica TL Electro- X:
Voltage Stabilizer
This instrument is indispensable to assuring high efficiency in repair and
servicing. It is advisable to use a voltage stablizer featuring a voltmeter and ampre-meter
that provides ready checking and reading of the output voltage and current. Moreover, teh
use of a battery tool and lead wires featuring clips at one end is recommended. By
installing the battery tool in the battery chamber in place of the mercury battery, electric
power can be supplied readily from the voltage stabilizer.
Insulating Resistance Meter
This instrument which features an exclusive resistance scale permits reading of
resistance over a range of several megohms to several hundred megohms and is
employed in the same manner as an ordinary tester. Since it uses a high voltage power
(approx. 500V), however, utmost precaution must be exercised to prevent adverse effect
on other circuits. In the course of use of this insulating resistance meter, particular care
must be taken to protect the transistors from the high-tension supply.
Focal Plane Shutter tester
This instrument permits varied types of tests and measurements of the function of
the focal plane shutter, including the shutter speed (at the top, center and bottom of the
picture area), speed of operation of the front and rear sectors of the shutter, and time-lag
of the X flash synchronizer contact.
Standard Light Source
The standard light source is used for checking the exposure readout circuit. It is
advisable to incorporate this standard light source in the light value tester which is
generally used for testing and repair.
Methods of Repair
4.1 Battery checker circuit
4.1.1 Battery checker lamp fails to turn on.
4.1.1.1 Malfunction of the battery checker switch (SW-3).
Undertake continuity test by employing a tester.
4.1.1.2 -out of the lamp filament. Burn
4.1.1.3
Remove either one of the lamp terminals (brown or green) from the amplifier unit and
test the lamp for continuity with the aid of a tester. If no continuity is determined, it is an
indication of a lamp blow-out, necessitating lamp replacement.
4.1.1.3 Improper contact of the battery checker voltage regulating
resistor (1K ohm semi-fixed resistor) and malfunction of the transistors.
Install the battery, set the SW-3 to "ON" position and check the voltage of (T11) to (T1).
If the voltage is determined to be about the same level as that of the power source, it is an
indication of either an improper contact of the 1K ohm VR or a malfunction of the
transistors.
In this case, check the soldered ends of the 1K ohm VR. If both the soldered sections are
found to be in order, replace the amplifier unit.
4.1.2 Improper voltage range.
The battery checker lamp should normally turn on at a voltage range of over 3.8V and not
exceeding 4.2V under a temperature of 25°C. Since the battery checker circuit has a
temperature characteristics of -0.1V/+10°C when a temperature of 25°C is taken as a
standard, due consideration must be given to adjustment of the voltage range in
accordance with the temperature of the room in which the measurement is being taken.
For instance, under a temperature of 15°C, the voltage range will be 0.1V over the
standard 25°C and will therefore be over 3.9V and not exceeding 4.3V. On the other
hand, the voltage range will be over 3.7V and not exceeding 4.1V at a room temperature
of 35°C.
4.1.2.1 Lighting voltage exceeds 4.2V.
This is attributed to improper adjustment of the battery checker voltage regulating resistor
(1K ohm VR), providing a resistance which is beyond the normal level. To repair, turn
the adjustment screw of the VR in a right motion and reduce the resistance to an
appropriate level.
4.1.2.2 Lighting voltage falls short of 3.8V
This is due to excessively low resistance of the 1K ohm VR. To repair, turn the
adjustment screw of the VR in a left motion and increase the resistance.
4.2 Malfunction of the exposure readout circuit
4.2.1 Both the "OVER" and "UNDER" indicator lamps fail to turn on.
4.2.1.1 Malfunction of the exposure readout switch (SW-1).
Test the SW-1 for continuity. Set the tester rods between the red and orange patterns of
the CdS baseplate and turn on the exposure readout activator switch. In case no
continuity is determined, it is an indication of either disconnection of the wiring,
improper adjustment of the switch contact pieces or accumulation of dust or other foreign
particles within the switch. To repair, check the wiring and clean the contact pieces of the
switch.
4.2.1.2 Malfunction of the amplifier unit.
If both the "OVER" and "UNDER" indicator lamps are found to be in normal working
condition and malfunction outlined in 4.2.1.1 cannot be determined, it is an indication of
a malfunction of the transistors featured in the unit. In such a case the entire unit must be
replaced.
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.

Produktspezifikationen

Marke: Kyocera
Kategorie: Nicht kategorisiert
Modell: TL Electro-X

Brauchst du Hilfe?

Wenn Sie Hilfe mit Kyocera TL Electro-X benötigen, stellen Sie unten eine Frage und andere Benutzer werden Ihnen antworten


Bedienungsanleitung Nicht kategorisiert Kyocera

Kyocera

Kyocera FX-103 Program Bedienungsanleitung

16 August 2024
Kyocera

Kyocera TL Electro-X Bedienungsanleitung

13 August 2024
Kyocera

Kyocera Yashica A Bedienungsanleitung

12 August 2024
Kyocera

Kyocera Mat 124 Bedienungsanleitung

11 August 2024
Kyocera

Kyocera Yashica C Bedienungsanleitung

11 August 2024
Kyocera

Kyocera Minimatic C Bedienungsanleitung

11 August 2024
Kyocera

Kyocera Lynx-5000E Bedienungsanleitung

11 August 2024
Kyocera

Kyocera Mat 124G Bedienungsanleitung

11 August 2024
Kyocera

Kyocera Electro 35 GX Bedienungsanleitung

10 August 2024
Kyocera

Kyocera FX-D Quartz Bedienungsanleitung

9 August 2024

Bedienungsanleitung Nicht kategorisiert

Neueste Bedienungsanleitung für -Kategorien-

BEKO

BEKO BBVM17400B Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DXV34PTA Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DCF414 Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DXIRFFP25 Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DXIR1A1A2P3 Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DCE450 Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DCMAS5713 Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DCMASBC1 Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DXKH180E Bedienungsanleitung

4 Dezember 2024
DeWalt

DeWalt DWE46150 Bedienungsanleitung

4 Dezember 2024