10-7
HDW-750/750CE V1
10-2-10. Output Limiter Check
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
.
S102 (E-3)/FP-121 board (B side)
→
OFF
.
S202 (F-3)/FP-121 board (B side)
→
OFF
.
S504 (B-4)/FP-121 board (B side)
→
ON
.
S505 (A-4)/FP-121 board (B side)
→
ON
.
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.
Connect sine wave of 1 kHz at
+
24 dBu to AUDIO IN
CH1 connector/rear panel.
4.
Connect sine wave of 1 kHz at
+
24 dBu to AUDIO IN
CH2 connector/rear panel.
5.
Equipment :
Audio analyzer
Measurement point : AUDIO OUT connector/
rear panel
CH1 (X) : Pin-2
CH1 (Y) : Pin-3
GND :
Pin-1
Confirm that the audio signal satisfies the specifica-
tions of
+
9.0
±
0.5 dBm (600
Z
).
6.
Equipment :
Audio analyzer
Measurement point : AUDIO OUT connector/
rear panel
CH2 (X) : Pin-4
CH2 (Y) : Pin-5
GND :
Pin-1
Confirm that the audio signal satisfies the specifica-
tions of
+
9.0
±
0.5 dBm (600
Z
).
FP-121 board (B side)
G
F
E
D
C
1
2
3
4
5
6
B
A
E501
TP201
TP102
RV11
RV151
RV152
S202
S102
S504 S505
TP302
TP401
TP202
RV502
RV501
S502
TP501
RV503
R
V10
R
V20
R
V22
R
V12
R
V13
R
V23
R
V150
R
V153
TP3
TP4
TP101
TP811
TP810
TP813
TP802
TP812
TP805
TP803
TP814
TP815
TP806
TP804
TP807
TP808
TP809
TP6 TP5
10-2. Audio System Alignment