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2-2-8. R-Y/B-Y DC Balance Adjustment
: Oscilloscope (BW/LIMITER → OFF)
Equipment
Test Point
: TP202 (GND:E201)/MD-111 (D-2)
Trigger
: SYNC OUTPUT connector
/CCU rear panel
Adjustment Points : 1RV203 (R-Y DC BAL)
/MD-111 (E-1)
1RV303 (B-Y DC BAL)
/MD-111 (E-1)
Adjustment Procedure:
Adjust 1RV203 and 1RV303 alternately so that the V
BLKG portions are flat.
RV203
BKP-590
RV303
V rate
2-2-9. R-Y/B-Y 90° Adjustment
Notes :
• This adjustment is necessary only when replacing 1FL4
on the MD-111 board.
• Use a plastic core driver to adjust 1FL.
Equipment : Digital voltmeter or Oscilloscope (DC mode)
Preparation:
• CCU-700/700P/700A/700AP setting
Extend the DM-94 board of the CCU.
Test Point
: TP14 (GND:E12)
/DM-94 (K-5)
(CCU-700/700P/700A/700AP)
Adjustment Point : 1FL4/MD-111 (D-1)
Adjustment Procedure:
Adjust 1FL4/MD-111 board so that a negative absolute
value of DC voltage is maximum.
The voltage changes slowly. When reading the value,
allow for 2 or 3 seconds after turning 1FL4.
TX
E10
TP9
S5
RV24
RX
RV20
TP20
RV3
E11
RV21
TP8
RV4
TP5
TP7
CV1
E2
TP4
TP22
TP2
TX
CV3
S6
CV2
ON
RX
LV2
TP21
RV1
Y AGC
E13
E1
CONT
RV22 LV3
RV23
E14
TP17
RV9
TP19
E3
RV17
TP11
-12 -5 +5 +12
DM
Y R-Y B-Y
Y R-Y B-Y GND
DM-94 board
/CCU-700/700A (A side)
2-2. MD-111 Board Adjustment
TP6
RV5
RV11
E12
TP14
RV2
ON
S4
RV10
TP13
TP3
E7
TP1
E4
S3
S1
MAN
AUTO
S2
CABLE
LENGTH
RV12
2-9(E)
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