B&K 415 - Page 99

TABLE 12.2
MODEL 415 SWITCHING CHART
44 MHz Low Pass IF Markers
10.7 MHz
10.7 MHz 100 KHz
Function Sweep
Pix Filter&
Except PIX (45.75)
45.75
Sweep Marker
Marker
Ch 4 Ch 10 400 Hz
Switch
Q201 Osc Video Amp!
QI. Q2, Q3, Q4, QS, Mkr
Q203,
Osc.
Osc.
Osc. Osc.
Oscillator
Position
Q202 Q402 Q401
Q6, Q7. Q8. Q9, Ql 1
QlO Q204
Q304
Q305 Q301 Q303 Q307
VIDEO
ON ON ON OFF or ON
OFF OFF OFF OFF
OFF OFF
OFF
(A+ =6 V) or
ON
IF ON
OFF OFF
OFF or ON
OFF OFF
OFF OFF
OFF OFF
OFF
or
(A+ =6V) or
or
ON*
ON* ON
(A+= 6V)
MKR OFF OFF OFF
OFF or ON
OFF
OFF
OFF
OFF OFF OFF
OFF
(A+= 14 V)
or or
ON
ON
(A+= 14 V)
MOD OFF OFF OFF
OFF or ON
OFF OFF OFF
OFF OFF
OFF
ON
MKR
(A+= 14 V) or
or
ON
ON
(A+= 14 V)
CH4 ON OFF OFF OFF or ON
OFF OFF OFF
OFF ON OFF
OFF
or
(A+= 6V) or
or
ON*
ON* ON
(A+= 6 V)
CH IO
ON
OFF
OFF
OFF or ON
OFF
OFF OFF
OFF OFF ON
OFF
or
(A+= 6V) or or
ON*
ON* ON
(A+= 6V)
10.7 MHz
OFF
OFF
OFF OFF
OFF ON ON OFF OFF
OFF
OFF
or
ON
*Pix oscillator (Q402) may be turned on by use of the CHROMA switch in the IF, CH 4 and CH 10 positions of the FUNCTION switch, in which cases
the 45.75 marker oscillator (QlO) is locked out. Functions marked "OFF or ON" are controlled by front panel switches other than FUijCTION switch.
Functions marked only "ON" or "OFF" are automatically turned on or off by the FUNCTION switch for each position.
The following circuits are always on when power is applied to unit: Attenuator (Q306), Waveform Generators (QI2 and QI3), Horiz Sweep Phase Splitter
(Ql4). 44 MHz Detector (Q15), 10.7 MHz Detector (Ql6), Marker Amplifier (Ql 7), Marker Output Amplifier (Ql8), Pattern Phase Inverter (Ql9), Pattern
~ Output Amplifier (Q20), 15,750 Hz Filter, Ch 4 - Ch IO Mixer-Amplifier (Q302), Bias Supplies and Internal Power Supplies.