10-3
HDW-750/750CE V1
10-2-4. AGC Voltage Adjustment (for VCA)
Preparation
.
AUDIO SELECT switch CH1/inside panel
→
AUTO
.
Connect sine wave of 1 kHz at
+
4 dBu to AUDIO IN
CH1 connector/rear panel.
Adjustment Procedure
1.
Equipment :
Audio analyzer
Measurement point : TP101 (D-3)/FP-121 board
(B side)
Adjustment point :
1
RV12 (E-4)/FP-121 board
(B side)
Specifications :
_
20.0
±
0.1 dBu
2.
Equipment :
Audio analyzer
Measurement point : TP201 (C-3)/FP-121 board
(B side)
Confirm that the audio signal satisfies the specifica-
tions of
_
20.0
±
0.1 dBu.
10-2-5. CH1, CH2 Output Level Adjustment
(Analog EE)
Preparation
.
Complete the setting as shown below by using the setup menu.
MENU : MAINTENANCE
PAGE : 07
*
VTR MODE-2
ITEM :
REAR1/WRR VR SEL
→
SIDE 1
ITEM :
REAR2/WRR VR SEL
→
SIDE 2
.
AUDIO SELECT switch CH1/inside panel
→
MANUAL
.
AUDIO SELECT switch CH2/inside panel
→
MANUAL
.
AUDIO LEVEL CH1 control knob/inside panel
→
Reference position
.
AUDIO LEVEL CH2 control knob/inside panel
→
Reference position
.
Connect sine wave of 1 kHz at
+
4 dBu to AUDIO IN
CH1 connector/rear panel.
.
Connect sine wave of 1 kHz at
+
4 dBu to AUDIO IN
CH2 connector/rear panel.
Adjustment Procedure
1.
Equipment :
Audio analyzer
Measurement point : TP101 (D-3)/FP-121 board
(B side)
Confirm that the audio signal satisfies the specifica-
tions of
_
20.0
±
0.1 dBu.
2.
Equipment :
Audio analyzer
Measurement point : TP201 (C-3)/FP-121 board
(B side)
Confirm that the audio signal satisfies the specifica-
tions of
_
20.0
±
0.1 dBu.
3.
Equipment :
Audio analyzer
Measurement point : AUDIO OUT connector/
rear panel
CH1 (X) : Pin-2
CH1 (Y) : Pin-3
GND :
Pin-1
Adjustment point :
1
RV151 (D-4)/FP-121 board
(B side)
Specifications :
0.0
±
0.1 dBm (600
Z
)
4.
Equipment :
Audio analyzer
Measurement point : AUDIO OUT connector/
rear panel
CH2 (X) : Pin-4
CH2 (Y) : Pin-5
GND :
Pin-1
Adjustment point :
1
RV152 (D-3)/FP-121 board
(B side)
Specifications :
0.0
±
0.1 dBm (600
Z
)
10-2. Audio System Alignment
