Mic Level Adjustment - Panasonic DVCPRO AJ-CA901P Service Manual

Electrical Adjustment for AJ-BS900HP & CA900HP

4-9. 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-8
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
+4dBu +/- 1dB.
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