3-3. clock (74 mhz) duty adjustment/dpr board, 3-4. prompter level adjustment – Sony HDCU-900 User Manual
Page 54
3-10 (E)
HDCU-900 MM
3-3-3. Clock (74 MHz) Duty Adjustment/DPR
Board
Perform “3-3-2. Clock (74MHz) Duty Adjustment/AT
Board” before starting this adjustment.
Measure : Oscilloscope (20 MHz BWLimit: ON)
Note
This adjustment corresponds to the DPR-163 board with
part No. suffix -14.
Adjustment Procedure
Measuring point : TP307 (F-8)/DPR-163
Adjusting point :
1RV301 (F-9)/DPR-163
Specifications :
C = 1.65
±0.04 Vdc
A
B
A
=B
C
GND
3-3-4. Prompter Level Adjustment
Measures : SD waveform monitor
SD signal generator
Preparation
Connect the SD signal generator (for UC : SMPTE color
bar/for CE : EBU color bar) to the PROMPTER IN
connector/SDI-54A/SDI-82.
Adjustment Procedure
Measuring point : PROMPTER connector/CAMERA side
Adjusting point :
1RV501 (C-5)/DPR-163
Specifications :
A = 140
±1 IRE
(terminated at 75
Z) (for UC)
A = 1000
±7 mV p-p
(terminated at 75
Z) (for CE)
DPR-163 board (A side)
[for CE]
[for UC]
A
A
3-3. Video and Reference Signal System Adjustment
RV501
A
B
C
D
E
F
G
H
J
K
L
M
1
2
3
4
5
6
7
8
9
1
RV301
1
TP307
Suffix : -14