Ntsc Signal System Adjustment (Hkcu-701A) - Sony HDCU-700A Maintenance Manual Supplement

5. Equipment: Oscilloscope
Test point: TP9/ extension board (VDA-31 board)
Adj.: 1RV603 (E-4) /IF-704 board
E = 0 ± 5 mV
Spec.:
E
6. Equipment: Oscilloscope
Test point: TP9/ extension board (VDA-31 board)
1RV801 (F-4) /IF-704 board
Adj.:
E = 920 ± 10 mV
Spec.:
HDCU-700A
3-5-9. Analog Return Level Adjustment
Preparation
. Connect between VBS1 OUT connector on the VDA-35
board and A-RET-IN1 connector on the VDA-35 board
using a BNC cable.
. Connect between SERIAL OUT1 connector on the
DIF-40 board and SERIAL-RET-IN1 connector on the
F
DIF-40 board using a BNC cable.
. S4 (L-7) /AT-103A board → D2
. S6 (L-7) /RC-70 board → D2
. BARS button/MSU-700 → ON
Adjustment procedures
1. CONFIG button/MSU-700 → ON
Touch panel operation/MSU-700
[CCU] → [RET|SETTING] → [RET1:SD-SDI-D2]
A, B
2. Equipment: Oscilloscope
Test point:
3. CONFIG button/MSU-700 → ON
Touch panel operation/MSU-700
[CCU] → [RET|SETTING] → [RET1:SD-Analog]
4. Equipment: Oscilloscope
Test point:
Adj.:
Spec.:
5. Equipment: Oscilloscope
Test point:
Adj.:
Spec.:

3-5. NTSC Signal System Adjustment (HKCU-701A)

C, D
TP18 (J-2) /IF-704 board
Measure the level A and C
TP18 (J-2) /IF-704 board
1RV600 (H-3) /IF-704 board
B = A
TP18 (J-2) /IF-704 board
1RV606 (H-2) /IF-704 board
D = C
GND
3-25 (E)