Sony CCU-900 Installation And Maintenance Manual page 48

3-3. Video Signal System
6. Select "DA2" from the engineering menu entry
display.
* Engineering Menu *
DA1
>DA2
DA3
Others
7. Select "WFM2 Gain" and adjust the color-bar signal
so that it is within the specified levels.
* DA2 *
PIX2 Gain
PIX2 DC
PROMPT Gain
>WFM2 Gain
WFM2 DC
EEPROM Store
8. Select "EEPROM Store" and save the adjustment
value.
Measurement point : WF1/2 OUT connector of CCU
rear panel
A = 100 ± 1 IRE (CCU-900)
Specification :
A = 700 ± 7 mV p-p (CCU-900P)
3-8 (E)
80
A2
80
80
A2
A
Adjusting the Staircase Signal
Adjust the staircase signal to display signals in the sequen-
tial mode on the waveform monitor. If the signal of the
sequential mode is not normally displayed on the wave-
form monitor, perform this adjustment.
When the waveform monitor is connected to the unit,
perform the adjustment using the controls on the DPR-69
board panel of the unit. When the VCS-700 is connected,
refer to the VCS-700 maintenance manual.
DPR
STAIR
GENLOCK
SYSTEM
STEP
LOCK DIGITAL CHU LOCK
POWER POWER
LEVEL POSITION
STAIR STEP POSITION control
STAIR STEP LEVEL control
1. Press the SEQ button of the WAVEFORM MONITOR
button (or MONITOR SELECT button) of the MSU-
700A/750, RCP-740/741 or others.
2. Adjust the position of the signal to be displayed using
the STAIR STEP POSITION control.
3. Use the STAIR STEP LEVEL control so that the
intervals of signals A and B to be displayed are almost
equal.
Press the SEQ button of the WAVEFORM MONITOR
button (or the MONITOR SELECT button) of the MSU-
700A/750, RCP-740/741 or others to output the waveform
monitor control signal of the unit, synchronizing with the
output signal of the WF output connector.
A
n
The control method of the sequential mode depends on the
waveform monitor used. If required, change the polarity of
the control from the setting of switch S601 (SEQ +/_) on
the DPR-69 board.
If adjustment is not possible even after the polarity is
changed, perform the adjustment on the waveform monitor
side.
OPTICAL CONDITION DUAL MODE
CCU CHU PRIME SECOND
DPR-69 board
B
CCU-900/900P IMM