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3-3. Encoder System Adjustment
3-3-13. I/Q (V/U) Phase Adjustment
Equipment:
Vectorscope
Test point:
TEST OUT connector/side panel
Preparations
. Extend the EN-141 board with the extension board (EX-762 board assembly or EX-464.)
. Connect the vectorscope to the TEST OUT connector/side panel.
. Disconnect the triax cable or optical fiber cable from CCU.
. Supply power from the AC adaptor (AC-550/550CE).
. OUTPUT switch/side panel → BARS
Adjustment procedures
1. Adj. point:
1RV601 (Q/U BAL) /EN-141 board
1RV602 (I/V BAL) /EN-141 board
Specification: Minimize tha beam spot of center on the vectorscope.
[NTSC]
M
G
R
Y
L
G
C
Y
1DL605 (I/Q BAL) /EN-141 board
2. Adj. point:
Specification: The beam spot of I signal matches the I axis and the beam spot of Q signal matches
the Q axis. [NTSC]
Equate two burst levels [PAL]
[NTSC]
M
G
R
Y
L
G
C
Y
3-32 (E)
[PAL]
R
Y
L
B
G
C
[PAL]
R
Y
L
B
G
M
G
B
Y
1
EN
M
RV405
RV406
RV201
M
L
G
RV608
RV301
K
RV605
J
B
H
C
Y
BLACK
BALANCE
G
RV601
RV601
Q/U
F
RV602
RV602
I/V
E
D
TP4
TP1
C
RV800
B
A
2
3
4
5
6
7
RV403
RV404
RV402
RV104
E1
RV407
RV401
RV202
RV100
RV203
RV304
RV200
RV302
RV300
RV303
RV204
DL605
RV600
RV607
RV603
RV606
S600
RV604
S601
S800
TP3
S801
TP2
RV802
RV801
RV609
EN-141 BOARD (A SIDE)
BVP-9500WS/9500WSP MM
8
CN1
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