Audio A/D Error Correction - Sony CBK-HD01 Maintenance Manual

4-11. AUDIO A/D Error Correction

Before starting adjustment, refer to "9-1. Preparation".
Fixtures and Equipment
For more details, refer to "1-10-2. Measuring Equipment".
. Signal generator
Adjustment Procedure
1. Input the sine wave of +4 dBu of 1 kHz to the AUDIO
IN CH1 connector and CH2 connector on the rear.
2. Execute AUDIO A/D ADJUST of the VDR MAINTE-
NANCE page of the SERVICE menu.
AUDIO A/D ADJUST
ADJUST START?
YES NO
3. Select "YES" by turning the MENU knob, and press
the MENU knob.
The auto adjustment starts. The following screens are
displayed during the adjustment.
. Screen displayed when CH1 is being adjusted
AUDIO A/D ADJUST
CH1: ADJUSTING
CH2:
CH3:
CH4:
. Screen displayed when CH1 is finished and CH2 is
being adjusted
AUDIO A/D ADJUST
CH1: COMPLETE
CH2: ADJUSTING
CH3:
CH4:
PDW-700/V1 (E)
. Screen displayed when all CH is are finished
AUDIO A/D ADJUST
CH1: COMPLETE
CH2: COMPLETE
CH3: COMPLETE
CH4: COMPLETE
4. Press down the MENU ESCAPE switch when the
adjustment is complete.
5. Turn off the power of this equipment once and back on
again. The error is corrected.
m
. If "TIME OVER ERR" is indicated on the adjustment
screen, check the menu setting, switch setting and others,
and re-execute the adjustment.
. If "INPUT OVER ERR" is indicated on the adjustment
screen, check the signal level, since the input signal level
may be too high.
. If "INPUT UNDER ERR" is indicated on the adjustment
screen, check the signal level, since the input signal level
may be too low.
. If "NO INPUT ERR" is indicated on the adjustment
screen, check the input signal, since the signal may not
be input correctly.
4-101