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Electrical Adjustment for AJ-BS900HEN & CA900HEN
7-9. Side tone Level Adjustment
(BS900H, CA900H)
BOARD
CAM POWER, CAM INCOM, BS AUDIO,
BS INCOM
TP
AJ-CA900H, BS900H INCOM connector
ADJ.
AJ-CA900H INCOM level knob (on Side panel)
VR3 [ENG SIDE TONE] : CAM POWER
VR5 [BS SIDE TONE] : BS AUDIO
INPUT
AJ-CA900H, BS900H INCOM connector
M. EQ
Audio Analyzer
SPEC.
A = -6 +/- 1dBm
SW Setting
1. Set switches on the CAM INCOM BOARD as
shown below.
SW
SW1 [DM/CM]
MIC SW
SW1 [ENG]
SW2 [ENG RTS LOAD]
SW2 [DM/CM]
INCOM OUT SW
Output Setting
2. Connect
INCOM
RECEIVE (H)] and 5pin [PGM/RECEIVE (C)] of
AJ-CA900H to OUTPUT A connector of audio
analyzer.
3. Set output parameters of audio analyzer as shown
below.
FUNCTION
FREQUENCY RANGE
OUTPUT MODE
OUTPUT LEVEL
FREQUENCY
LEVEL METER
LOAD
INPUT Setting
4. Connect INCOM connector 1 pin [GND] and 2 pin
[INCOM TALK] of AJ-CA900H to INPUT connector
of audio analyzer.
5. Set input parameters of audio analyzer as shown
below.
Setting
BOARD
CM
CAM INCOM
ON
CA900H
side panel
4W
BS AUDIO
ON
BS AUDIO
CM
BS INCOM
OFF
BS900H
front panel
connector
4
pin
[INCOM
: OSC
: X100
: A
: -10dB
: 1000Hz
: 0dBm
: OFF
FUNCTION
INPUT IMPEDANCE
FILTER
LM/DM RANGE
6. Adjust INCOM level knob of AJ-CA900H so that
the audio level is "0 +/- 0.5dBm".
7. Adjust VR3 [ENG SIDE TONE] so that the side
tone audio level A is within the specification.
8. Connect
RECEIVE (H)] and 5pin [PGM/RECEIVE (C)] of
AJ-BS900H to OUTPUT A connector of audio
analyzer.
9. Connect INCOM connector1pin [GND] and 2pin
[INCOM TALK] of AJ-BS900H to INPUT A
connector of audio analyzer.
10. Confirm parameter setting of audio analyzer as
follows.
Output Setting
FUNCTION
FREQUENCY RANGE
OUTPUT MODE
OUTPUT LEVEL
FREQUENCY
LEVEL METER
LOAD
Input Setting
FUNCTION
INPUT IMPEDANCE
FILTER
LM/DM RANGE
11. Adjust VR5 [BS SIDE TONE] so that the side tone
audio level A is within the specification.
ELE-21
: LM
: 10kΩ
: FLAT
: AUTO
INCOM
connector
: OSC
: X100
: A
: -10dB
: 1000Hz
: 0dBm
: OFF
: LM
: 10kΩ
: FLAT
: AUTO
4pin
[INCOM
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