Sony CBK-HD01, Maintenance Manual

Page: 25 / 300

1-15
PDW-700/V1 (E)
2. LIMITER characteristics: Two to four types of
characteristics can be selected depending on each
headroom.
3. OUT_PUT_LIMITER characteristics: Performs
LIMITER processing on the PB and EE_OUT. ON/
OFF.
4. Turns on and off the HPF (67 Hz) and LPF (15 KHz;
_
24 dB). (Runs automatically during front
microphone selection)
5. Performs gain control when CH1 and CH2 are on
MANUAL status. (VR-MAX:
+ 12 dB)
6. CH3 and CH4 turn on and off the AUTO operation.
7. Internal SG: Four types of 1 KHz/
_
12,
_
16,
_
18,
_ 20 dBFS.
8. Recording error correction: + 0 to _ 2 dB (started from
the terminal)
9. Playback error correction:
+
0 to
_
2 dB (started from
the terminal)
10. INPUT delay amount: Performs delay processing to
match the VIDEO and AUDIO phases of each CH.
Description of each part
1.
DIGITAL AUTO_AMP Processing
Selects the AUTO level from the menu.
AU AUTO SPEC :
_
6 dB/
_
9 dB/
_
12 dB/
_
15 dB/
_
17 dB
_ 6 dB : Linear operation until approx. _ 9 dBFS. Approx.
_ 6 dBFS at Max.
_
9 dB : Linear operation until approx.
_
12 dBFS.
Approx.
_
9 dBFS at Max.
_ 12 dB : Linear operation until approx. _ 15 dBFS.
Approx. _ 12 dBFS at Max.
_
15 dB : Linear operation until approx.
_
18 dBFS.
Approx.
_
15 dBFS at Max.
_ 17 dB : Linear operation until approx. _ 20 dBFS.
Approx. _ 17 dBFS at Max.
2. DIGITAL In Put LIMITER characteristics (only
during MANUAL)
Selects the LIMITER level from the menu.
AU AUTO SPEC :
_
6 dB/
_
9 dB /
_
12 dB/
_
15 dB/
_
17 dB
_
6 dB : Linear operation until approx.
_
9 dBFS. Approx.
_ 6 dBFS at Max.
_ 9 dB : Linear operation until approx. _ 12 dBFS.
Approx.
_
9 dBFS at Max.
_
12 dB : Linear operation until approx.
_
15 dBFS.
Approx. _ 12 dBFS at Max.
_ 15 dB : Linear operation until approx. _ 18 dBFS.
Approx.
_
15 dBFS at Max.
_
17 dB : Linear operation until approx.
_
20 dBFS.
Approx. _ 17 dBFS at Max.
AGC/LIM SPECIFICATION
0
_ 10
_ 20
_ 40
_ 30
_ 50
_ 60
_ 70
0 + 10 + 20 _ 10 _ 20 _ 30 _ 40 _ 50 _ 60 _ 70
_ 6dBFS
_ 9dBFS
_ 15dBFS
_ 12dBFS
_ 17dBFS
INPUT [dBFS]
OUTOPUT [dBFS]
_
8.1
dB
F
S
_
11.4
dB
F
S
_
14.6
dB
F
S
_
17.9
dB
F
S
_
20.0
dB
F
S
Output level at 0dBFS input.
Subthreshold level
_ 5.4dBFS max
_ 8.4dBFS max
_ 11.4dBFS max
_
14.4dBFS max
_ 16.4dBFS max
_ 4.8dBFS max
_ 7.8dBFS max
_ 10.8dBFS max
_ 13.8dBFS max
_ 15.8dBFS max
0dBFS
Features of the AGC/LIM OFF.
: Features in common of the MIC/LINE input.
Max input level
of the LINE input.
Max input level
of the MIC input.
3. DIGITAL Out Put LIMITER characteristics
Turn the LIMITER ON/OFF from the menu.
ON : Linear operation until approx.
_ 12 dBFS, approx.
_
11 dBFS (at Max.)
OFF : Turn off LIMITER at 0 dBFS.
4. Gain control during MANUAL
The A/D converted VR value is converted into a DSP
multiplication value at FP_CPU and synchronized with the
VIDEO1 frame, then handed over to the CPU to set in the
register of the DSP. The maximum variable for volume is
+
12 dB. (
_
∞
to
+
12 dB)
5. Recording error correction
For error correction on the A/D converter for audio, the
multiplication value is corrected in the range
+
0 to
_
2 dB.
Starts from the terminal with the standard signal level
applied. (fully automatic)
6. Playback error correction
For error correction on the D/A converter for audio, the
multiplication value is corrected in the range
+ 0 to _ 2 dB.
The correction is performed after the playback error
correction is completed. Starts from the terminal. (semi-
automatic)
The internal SG is used as the standard signal, and the
inside panel for each LEVEL_VR is turned and fine-tuned.