4-6. Audio System Adjustment (APR-40 Board)
4-6-1. Adjustment Overview
4-6. Audio System Adjustment (APR-40 Board)
4-6-1. Adjustment Overview
In the audio system alignment for the VTR need to adjust the analog audio system only. For the digital
audio system is not needed.
Tools List
To perform the audio system alignment for the VTR, prepare the following equipment and fixtures.
. Audio signal generator: TEKTRONIX SG505-option 02 or equivalent
. Audio analyzer:TEKTRONIX AA501A-option 02 or equivalent
. Oscilloscope:TEKTRONIX 2465B or equivalent
. Extension board:EX-555 (Part No. A-8277-211-A)
. Shorting clip
. Composite video monitor
n
This monitor is for menu displaying. Be sure to connect it to VIDEO OUTPUT COMPOSITE 3
(SUPER) connector.
Adjustment Items
Section Item (Section title)Adjustment pointMeasurement point
4-6-3Analog audio output (Line) adjustment (APR-40 board)
Output level adjustment1CH1RV500/APR-40AUDIO OUTPUT CH1
CH21RV600/APR-40AUDIO OUTPUT CH2
CH31RV700/APR-40AUDIO OUTPUT CH3
CH41RV800/APR-40AUDIO OUTPUT CH4
L1RV900/APR-40MONITOR OUTPUT L
R1RV1000/APR-40MONITOR OUTPUT R
4-6-4Analog audio offset adjustment (APR-40 board)
Offset level adjustment1CH1RV103/APR-40TP1113/APR-40
CH21RV203/APR-40TP1113/APR-40
CH31RV303/APR-40TP1114/APR-40
CH41RV403/APR-40TP1114/APR-40
4-6-5Analog audio input adjustment (APR-40 board)
1. Input level adjustment1RV100/APR-40, CH11RV101/APR-40AUDIO OUTPUT CH1
CH21RV200/APR-40, 1RV201/APR-40AUDIO OUTPUT CH2
CH31RV300/APR-40, 1RV301/APR-40AUDIO OUTPUT CH3
CH41RV400/APR-40, 1RV401/APR-40AUDIO OUTPUT CH4
2. Distortion rate adjustment 1RV402/APR-40CH4AUDIO OUTPUT CH4
CH31RV302/APR-40AUDIO OUTPUT CH3
CH21RV202/APR-40AUDIO OUTPUT CH2
CH11RV102/APR-40AUDIO OUTPUT CH1
DNW-75/75P4-13 |