Sony HDCU-700A Maintenance Manual Supplement page 18

3-5. NTSC Signal System Adjustment (HKCU-701A)
3-5-10. Analog Return Video 4 fsc Phase
Adjustment (Hue Phase Adjustment)
Note
. Perform this adjustment only when replacing 1RV601
or 1RV803.
(Adjustment for 1RV601 is very critical at the factory.)
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
DIF-40 board using a BNC connector.
. S4 (L-7) /AT-103A board → D2
. S6 (L-7) /RC-70 board → D2
. BARS button/MSU-700 → ON
11 10 9 8 7
RV25
TP14
RV11
TP16
TP17
RV24
RV23
RV7 RV9
RV8 RV17 RV16
RV27
RV32
S12
IF-704 Board (Component side)
3-26 (E)
3
6 5 4 2
LV1
TP2
TP24 TP25
RV605 RV603 RV604
TP15
RV22
RV802
RV801
RV15
RV800
1
RV601 RV600
RV606
S8
TP18
S7
S4
RV4
TP3
RV1
RV3
TP6
RV2
TP8
TP7
RV12 RV18
RV14
RV10
RV13
Adjustment procedures
1. CONFIG button/MSU-700 → ON
Touch panel operation/MSU-700
[CCU] → [RET|SETTING] → [RET1:SD-SDI-D2]
2. Equipment: Oscilloscope
Test point: TP24 (D-4) /IF-704 board
3. CONFIG button/MSU-700 → ON
Touch panel operation/MSU-700
[CCU] → [RET|SETTING] → [RET1:SD-Analog]
1
A
4. Equipment: Oscilloscope
B
Test point: TP24 (D-4) /IF-704 board
C
Adj. point: 1RV803 (J-3) /IF-704 board
D
E
Spec.:
F
G
5. CONFIG button/MSU-700 → ON
Touch panel operation/MSU-700
H
[CCU] → [RET|SETTING] → [RET1:SD-SDI-D2]
J
6. Equipment: Oscilloscope
K
Test point: TP25 (D-3) /IF-704 board
L
M
N
P
Q
Observe the shape of waveform
(Coarse adjustment)
1RV601 (H-3) /IF-704 board
(Fine adjustment)
So that the waveform is identical in
shape to that shown in step 2.
Observe the shape of waveform
HDCU-700A