Incom Level Adjustment (Bs900H → Ca900H) - Panasonic DVCPRO AJ-CA901P Service Manual

Electrical Adjustment for AJ-BS900HP & CA900HP
4-12. INCOM Level Adjustment
(BS900H → → → → CA900H)
BOARD BS AUDIO, CAM INCOM
TP AJ-BS900H COMMUNICATION TERMINAL
6pin, 7pin
ADJ. VR2 [2W] : BS AUDIO
VR4 [RTS LVL] : BS AUDIO
INPUT AJ-CA900H INCOM connector
M. EQ Audio Analyzer
SPEC. A = 0 +/- 1dBm
SW Setting
1. Set switches in AJ-CA900H and AJ-BS900H as
shown below.
SW
SW1 [DM/CM]
SW1 [ENG]
SW2 [ENG RTS LOAD]
SW2 [DM/CM]
MIC SW
Output Setting
2. Connect communication terminal 6 pin [ENG TO L
(H)] and 7pin [ENG TO L (C)] of AJ-BS900H to
OUTPUT A 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 1pin [GND] and 2pin
[INCOM TALK] of AJ-CA900H to INPUT A
connector of audio analyzer.
5. Set input parameters of audio analyzer as shown
below.
Setting BOARD
CM CAM INCOM
2W BS AUDIO
ON BS AUDIO
CM BS INCOM
ON CA900H side plate
: OSC
: X100
: A
: 0dB
: 1000Hz
: 0dBm
: OFF
FUNCTION
INPUT IMPEDANCE
FILTER
LM/DM RANGE
6. Adjust VR2 so that the audio level A is within the
specification.
7. Set switch on BS AUDIO BOARD as follows.
SW
SW1 [ENG]
8. Adjust VR4 so that the audio level A is within the
specification.
ELE-11
: LM
: 10kΩ
: FLAT
: AUTO
Setting BOARD
RTS BS AUDIO