Tektronix VITS100 Maintenance, 76 VITS100 NTSC VITS Inserter Instruction Manual, Table 72: Test Jumpers

Maintenance
7–6 VITS100 NTSC VITS Inserter Instruction Manual
Table 7–2: Test Jumpers
Function Jumper # Description Factory
Setting
Genlock Processor Reset J5 Pins 1–2: Reset controlled by
hardware watchdog.
Pins 2–3: Holds processor in
reset mode.
No Plug: No hardware resets.
1–2
Hardware Watchdog Reset J6 Pins 1–2: No Reset.
Pins 2–3: Hold in Reset mode.
1–2
VCO Control J12 Pins 1–2: VCO Control loop
closed.
Pins 2–3: VCO Control voltage
set to ground, to set VCO center
frequency.
1–2
Oscillator Oven Control J13 Pins 1–2: Oscillator oven on.
Pins 2–3: Oscillator oven off.
1–2
Housekeeping Supply Enable J17 Pins 1–2: Supply enabled.
No Plug: Supply disabled.
1–2
Transformer Enable J18 Pins 1–2: Connects power to
transformer.
No Plug: Disables Power Supply.
1–2
Overcurrent Shutdown J19 Pins 1–2: Shutdown enabled.
No Plug: Shutdown disabled.
1–2
Power Supply Disconnect
(Jumper Off = Disconnect) J20 Pins Supply 1–2 +12V
3–4 –12V
5–6, 7–8 +5V
9–10, 11–12 –5V
13–14, 15–16 GND
ON
ON
ON
ON
No Jumper
Clock Disable J32 Pins 1–2: DAC Clock Enabled.
Pins 2–3 DAC Clock Disabled.
1–2
Character Set Up Control J33 Pins 1–2: 7.5% Character
Set-Up (Standard).
Pins 2–3: 0% Character Set-Up
(Option 1J).
1–2
Memory Bank Select J54 Pins 1–2: Standard signals.
Pins 2–3: Option 1J signals.
1–2
V Drive J55 Pins 1–2: Used by VITS200.
Pins 2–3: VITS100.
2–3