3-15 (E)
HDCU-900 MM
3-4-6. WF Output Level Adjustment
Measures : Oscilloscope, SD waveform monitor
Preparation
.
Board extension : RC-86 board (front side)
.
Board extension : DIF-102 board (rear side)
. 1
RV354 (B-4)/RC-86
→
mechanical center (ENC LEVEL)
.
S811-1 (M-6)/RC-86
→
ON
.
S811-2 (M-6)/RC-86
→
OFF
.
S802 (M-4)/RC-86
→
525
.
WF monitor select switch/MSU
→
ENC
.
BARS button/MSU
→
ON
Adjustment Procedure
1.
Video level adjustment
Measuring point : TP350 (A-4)/RC-86
Adjusting point :
1
RV350 (B-4)/RC-86
Specifications :
A = 1428
±
5 mV
2.
WF OUT level adjustment
Measuring point : WF OUT connector/DIF-102
Adjusting point :
1
RV404 (G-4)/DIF-102
Specifications :
B = 100.0
±
0.5 IRE
(terminated at 75
Z
) (for UC)
B = 700.0
±
3.5 mV
(terminated at 75
Z
) (for CE)
Settings after Adjustment
.
After finishing the adjustment, return the switches to the
original setting.
.
WF monitor select switch/MSU
→
ENC
.
BARS button/MSU
→
OFF
n
Do not move
1
RV354 (B-4) on the RC-86 board from the
mechanical center.
3-4-7. STAIR CASE Adjustment
Measure : Oscilloscope
Note
Perform temporarily this adjustment after repairing.
When the system is set up, perform the adjustment again
according to the characteristic of the waveform monitor.
Preparation
.
Board extension : RC-86 board (front side)
. 1
RV354 (B-4)/RC-86
→
mechanical center (ENC
LEVEL)
.
S802 (M-4)/RC-86
→
525
Adjustment Procedure
Measuring point : TP352 (C-5)/RC-86
Adjusting point :
1
RV353 (C-4)/RC-86
1
RV352 (C-5)/RC-86
Specifications :
A = 10.0
±
0.5 V p-p (
1
RV353)
B = 0
±
0.5 V dc (
1
RV352)
Settings after Adjustment
After finishing the adjustment, return the switches to the
original setting.
n
Do not move
1
RV354 (B-4) on the RC-86 board from the
mechanical center.
B
GND
A
A, B
3-4. Video Signal System Adjustment (RC-86 Board)
