Return Dc Level Adjustment - Sony HDC1000 Maintenance Manual

3-8-8. Return DC Level Adjustment

Preparation
1. Set S601 and S605 for adjustment on the DTX-1 board
in HDCU-950 as follows. (Refer to Section 3-6-2.)
S601: SDI
S605: HD
2. Set S1-1 on the TR-136 board to ON (HDC1550).
n
The multiformat color-bar signal is output from the
test signal generator in HDC1550.
3. Change the connection of the equipments as shown in
the following figure.
BNC cable
HDCU-950
RET1
HDSDI
OUT1 HDSDI
OUT2
CAMERA
Optical fiber cable
HDFX100
HDCU
CAMERA/
HDTX
HDC1000/V1(E)
Waveform monitor
75 Z
HDC1550
HDCU/
HDFX
TRIAX cable
3
Adjustment procedure
4. Measuring equipment:
Test point:
Adjusting point: 1RV801/TR-136 board
Specification:
5. Reconnect the equipments as shown in Section 3-6.
6. Re-set S1-1 on the TR-136 board to OFF.
A
B
TP605
S1
RV761
1
RV601
RV602
TP801
RV801
2
TP401
RV721
TP721
E1
TR-136 BOARD (SIDE A)
Waveform monitor
HD SDI OUT2/HDCU-950 rear
panel
A = 0 %
(Flatten the RET DC level A.)
A
0 %
C
D
LV102
LV209
E2
RV102
TP604
LV207
LV103
RV103
LV203
LV105
LV205
RV105
TP106
E200
LV202
TP201
LV104
RV104
LV101
TP602
TP603 TP601
0 %
RV204
LV210
TP210
TP209
RV203
LV208
TP208
TP207
RV201
LV204
TP204
TP203
RV202
LV206
TP206
TP205
TP202
E4
3-31