B&K 1076, Инструкция по эксплуатации

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14. CALIBRATE CONTROL. Calibrates the shorted turns tater and
when rotated fully counter-clockwise to the "Leakage-Continuity"
position calibrates the instrument for the leakage test on flybacks
and yokes. If the Calibrate control is rotated clockwise the test
indicator lamp will glow. To tum the lamp off, rotate the calibrate
control to the Leakage Continuity position.
Output Jacks and Indicators
When not using
a
particular Drive Signal disconnect
the Test Lead from the Jack, as interference will
occur.
1. VIDEO OUTPUT. The signal at video frequencies is taken from
the Video Output Jack. The polarity of the signal is controlled by
the Video polarity ( + or -) switch. A separate lead is used for a
ground return for this signal and for the following output signals.
(Do not feed Video Signal to a point with voltage of more than
350 volts).
2. SYNC OUTPUT. High level composite sync signal is taken from
this jack. Amplitude and phase are selected by the Sync Amplitude
control.
3. COLOR. Color subcarrier (3.58 me) output is taken from this jack
for injection into chroma circuits.
4. 400 CYCLE. The 400 Cycle Tone signal from the audio oscillator
is available from this jack at a fixed output level.
5. 4.5 MC. A 4.5 me signal for sound system trouble shooting is avail­
able from this jack. Modulation is optional and is selected by the
audio selector switch.
6. R.F. - I.F. OUTPUT. Output signal at the R.F. and I.F. frequencies
are taken from this jack.
7. BIAS. The adjustable negative bias between O and 50 volts is avail­
able at this jack.
8. VERTICAL GRID DRIVE. Vertical Grid Driving Pulses are
available from this jack to feed into the TV receiver being serviced.
The amplitude of these pulses is controlled by the Vertical Drive
. Amplitude Control.
9. HORIZONTAL GRID DRIVE. Horizontal Grid Driving Pulses are
available from this jack to feed into the TV receiver being serviced.
10. VERTICAL YOKE TEST SIGNAL. This jack provides a low
impedance test signal to ground to directly drive the vertical winding
of a deflection yoke.
11. A.G.C. KEYING PULSE. A high level positive going A.G.C. Pulse
for use in keyed A.G.C. receiver circuits.
12. LEAKAGE-CONTINUITY. The Leakage Test for flyback trans­
formers and deflection yokes is made between these two jacks. This
test can be used to measure leakage of any component where sensitivi­
ties as high as 10 megohm is required.
13. FLYBACK YOKE TEST SIGNAL. Provides the necessary test
signal to determine the presence of shorted turns in a flyback trans-
former or horizontal yoke winding.
14. TEST INDICATOR. This Indicator is used when making a shorted
turns test on a flyback transformer or yoke. It is also used as the
leakage indicator for the Leakage-Continuity Test.
15. PLATE DRIVE. The Plate Drive signal for either the vertical or
horizontal system is available from this jack. The plate drive selector
switch position determines whether it is horizontal or vertical drive.
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