JVC BR-D95U - Manual (Page 41)

80
8-5 ERROR CORRECTION
8-6. AUDIO V. FADE FUNCTION
Major changes in waveforms during audio transitions may be heard as noise during playback.
To reduce this noise, an Audio V. Fade function is provided. When this is operating, audio transitions are detected
and the audio level is faded in a V shape during playback.
This function can be set with menu switch No. 214 <PBV. FADE>.
OFF (0) : The V. fade function is disabled.
5M (1) : The V. fade function is enabled and audio transitions are faded out and faded in for 5 msec to reduce
noise. For best results, this position is recommended.
10M (2) : The V. fade function is enabled and audio transitions are faded out and faded in for 10 msec to reduce
noise.
Error correction of digital playback signals is performed with the error correction
circuit and the error conceal circuit.
Error correction circuit : Errors in playback data caused by dropouts or mis-
tracking are corrected using the results of the data
operation.
Error conceal circuit : Major errors that the error correction circuit cannot
correct are concealed with the previous frame data.
Switching the setting of menu switch No. 112 <ECC MODE> turns the error
correction circuit ON/OFF.
The relationship between the menu setting and error correction operation is shown
in the table below.
Menu setting Error correction circuit Error conceal circuit
NORMAL o o
NO CONCEAL o x
NO CORRECTION x x
o : Activated
x : Deactivated
• Normally set to “NORMAL (0)”.
• Turning part or all of the error correct circuit OFF allows you to compare noise
levels and check the head service life. For comparison, play back a moving
picture.
For example, when switching between “NORMAL” and “NO CONCEAL” shows a
big difference in picture quality, it indicates that the error conceal circuit works
and that a major error has occurred. In this case, the heads may no longer be
serviceable and should be replaced.
8 PLAYBACK
81
8 PLAYBACK
8-7 SIMPLIFIED PLAYBACK SPEED ADJUSTMENT FUNCTION
The playback speed can be increased or decreased in two ways (simplified playback speed adjustment function).
When two VCRs are being played back, this function helps synchronize playback operation (sync operation).
Increasing/decreasing the playback speed
by 7%
1. During playback, press the [FF] or [REW] button
while pressing the [PLAY] button.
Ⅲ While the [FF] button is pressed: The playback
speed is increased by about 7%.
Ⅲ While the [REW] button is pressed: The
playback speed is decreased by about 7%.
2. Operation differs depending on which button you
release first.
Ⅲ If you release the [PLAY] button first, playback
speed increased/decreased by about 7% is
maintained (Latch mode).
• To return to the normal speed, press the [PLAY]
button again.
Ⅲ If you release the [FF] or [REW] button first, the
normal playback mode is restored.
The tapes loaded on two VCRs can be played back in
sync with the same time code data.
Synchronized Running mode
POWER
ON I
OFF O
M H F S
REC
MENU
PLAY PAUSE/STILL
REW STOP FF
EJECT
PHONES CH1 CH2 CH3 CH4 REC
PLAY
PULL FOR VARIABLE
TRACKING
CH1
CH1
CH2 CH3 CH4/ TRACKING
SET HOLD PB PB/EE
COUNTER UB CONDITION
AUDIO
INPUT VIDEO
INPUT
AUDIO MONITOR
PULL
RELEASE
RESET VCON REMOTE
TOP VIDEO AUDIO
OTHERS ON SCREEN TIME CODE SERVO/SYS USER
INSERT
STAND BY
PLAYER SEARCH VAR
P.PLAY
DA3 DA2 DA1 VIDEO ASSEM
IN ENTRY OUT
CANCEL
SHIFT REVIEW
METER MODE TRACKING FINE PREVIEW AUTO EDIT PREROLL
TC
RECORDER
DA4
VIDEO CASSETTE RECORDER BR-D95U
STILL
X-1
REV FWD
X1
CH2 CH3 CH4
CH1 CH2 CH3 CH4 CH1 CH2 CH3 CH4
SIF SDI AES/EBU
AUDIO INPUT / AUDIO MONITOR SELECT
LINE CPN L ANALOG R
PULL RELEASE
CTL P.READ AUTO OFF V.VAR REMOTE PB/EE 16:9 TC UB DF SERVO GEN CF AP 525 OVER
–60
–2 –4
+2 +4
0
–40 –30 –20
–10 0 dB dB R P OVER
–60
–2 –4
+2 +4
0
–40 –30 –20
–10 0 dB dB R P OVER
–60
–2 –4
+2 +4
0
–40 –30 –20
–10 0 dB dB R P OVER
–60
–2 –4
+2 +4
0
–40 –30 –20
–10 0 dB dB R P 625
Variable Motion
COMPONENT DIGITAL
[IN] button [OUT] button
[PLAYER] button
[RECORDER] button
Jog dial
[FF]
button [REW]
button [PLAY]
button
[PREVIEW] button
[ENTRY] button
Ⅲ Connection
• Connect the [REMOTE IN] connector of the
controlled VCR and the [REMOTE OUT]
connector of the control VCR with a 9-pin cable.
• Input external sync signals to synchronize the
two VCRs.
Ⅲ Setting
• Set the Remote/Local switch to “Remote” on the
controlled VCR and set the Remote/Local switch
to “Local” on the control VCR.
Ⅲ Operation
1. Set menu switch No. 372 <P+R AT SWAP
MODE> to “ENABLE”.
2. Press the [PLAYER] and [RECORDER] buttons
at the same time. Both buttons light up.
3. If the edit mode (assemble, insert) is selected,
release it.
4. Search the position from which you want to start
playback using the control VCR’s jog dial, etc.
5. Press the [ENTRY] button while pressing the [IN]
button to determine the edit IN point for
synchronized playback.
[
The time code data determined by the control
VCR is registered as the playback start point
on the two VCRs.
6. Press the [PREVIEW] button to start the
synchronized tape running.
The phase is adjusted just before the edit IN
point for synchronization.