Sony HKCU-902 Benutzerhandbuch
3-7 (E)
HDCU-900 MM
3-2-4. PGM Mix Level Adjustment
Measures : Oscilloscope, Audio oscillator
Note
This adjustment is described on the premise that the output
impedance of the audio oscillator is 600
impedance of the audio oscillator is 600
Z.
Preparation
Board extension : AT-141 board (front side)
Adjustment Procedure
1.
Input a sine wave of 1 kHz, 2.2 V p-p (0 dBu) from the
audio oscillator to C77-pin (X), D77-pin (Y) and D76-
pin (G) on the extension board of the AT-141 board.
audio oscillator to C77-pin (X), D77-pin (Y) and D76-
pin (G) on the extension board of the AT-141 board.
2.
Measuring points : TP504 (M-4)/AT-141 or 4-pin (X)/
INTERCOM connector, 3-pin (G)/
HDCU front panel
HDCU front panel
Adjusting point :
1RV501 (PGM MIX)/AT-141
board panel side
board panel side
Specifications :
A = 100
±20 mV p-p
n
These specifications are set for service. When using this
unit, adjust the level to suit the user.
These specifications are set for service. When using this
unit, adjust the level to suit the user.
AT-141 board (A side and panel side)
A
S404
TP405
TP502
TP402
TP613
TP608
TP401
S504
S603
S126
S602
S601
R
V501
R
V502
R
V506
R
V505
R
V405
S503
TP503
TP504
S41
S403
S128
1
1
1
1
1 1
1
A
B
C
D
E
F
G
H
J
K
L
M
1
2
3
4
5
6
7
8
9
AT
POWER
/1.001
FINE
HD BB
REMOTE LOCAL
REFERENCE H PHASE
MIC LEVEL
REF
IN
GEN
LOCK
NORM
MIN
MIN
1
2
ENG PROD
PRIVATE
NORM
INCOM
SELECT
TALK
LEVEL
PGM
MIX
SIDE
TONE
2 WIRE
CANCEL
CH-1
CH-2
CCU
S401
S402
RV402
1
RV604
1
RV603
1
RV605
1
RV602
RV401
S102
S110
S101
3-2. Audio System Adjustment
600
Z
Audio oscillator
GND
GND
Y
X