Mic Level Adjustment - Panasonic DVCPRO AJ-CA901P Service Manual

Electrical Adjustment for AJ-BS900HEN & CA900HEN

7-7. MIC Level Adjustment

BOARD BS AUDIO
TP AUDIO OUT 1CH, AUDIO OUT 2CH
ADJ. VR10 [LVL], VR11 [LVL]
INPUT As shown below
M. EQ Audio Analyzer
SPEC.
CH1 = 0dBu +/- 1dB, CH2 = 0dBu +/- 1dB
1. Set audio control switches on the DVCPRO
camcorder are shown below.
(1) AUDIO SELECT (CH1, CH2)
(2) AUDIO IN (CH1, CH2)
(3) REAR MIC POWER (CH1, CH2) : OFF
(4) AUDIO CH FRONT VR
Side panel on camcorder
Audio Analyzer's setting
2. Connect AUDIO IN CH1 connector of camcorder
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
: MAN
: REAR MIC
: MAX.
(1)
(2)
(3)
: OSC
: X100
: A
: -60dBm
: 1000Hz
: 0dBm
: ON
ELE-19
4. Connect AUDIO OUT connector of camcorder to
INPUT A connector of audio analyzer.
5. Set input parameters of audio analyzer as shown
below.
FUNCTION
INPUT IMPEDANCE
FILTER
LM/DM RANGE
6. Adjust AUDIO LEVEL VR CH1 and CH2 so that
the output levels of camcorder (CH1 and CH2) are
within the specification.
MIC Level Adjustment
7. Connect AUDIO OUT CH1 connector of AJ-
BS900H to INPUT A connector of audio analyzer.
8. Adjust VR10 so that the AUDIO OUT level of CH1
is within the specification.
9. Connect AUDIO OUT CH2 connector of AJ-
BS900H to INPUT A connector of audio analyzer.
10. Adjust VR11 so that the AUDIO OUT level of CH1
is within the specification.
: LM
: 10kΩ
: FLAT
: AUTO