8 PLAYBACK |
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Error correction of digital playback signals is performed with the error correction |
circuit and the error conceal circuit. |
8 PLAYBACK |
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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). | |
[IN] button | [OUT] button |
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 | |
| AUDIO INPUT / AUDIO MONITOR SELECT |
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| SDI | CH1 | CH2 | CH3 | CH4 | SIF |
| AES/EBU | CH1 | CH2 | CH3 | CH4 | LINE |
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| ANALOG | CH1 | CH2 | CH3 | CH4 | CPN |
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| CH4/TRACKING |
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PHONES | CH1 | CH2 | REC CH3 |
| CH4 | TRACKING |
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| PULL FOR VARIABLE |
| METER MODE | ||
PULL
RELEASE
PLAY
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| VIDEO CASSETTE RECORDER |
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| POWER |
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| ON | I |
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| COMPONENT DIGITAL |
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| OFF | O | |
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| Variable Motion |
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| [PLAYER] button | ||||
AUTO OFF P.READ V.VAR | PB/EE REMOTE | 625 |
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| UB | RESET | VCON | REMOTE |
| [RECORDER] button | ||
CTL TC UB | DF SERVO CF GEN 16:9 AP | 525 | CONDITION |
| COUNTER |
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| MENU | SET | HOLD | PB |
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| PB/EE |
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| STILL |
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ASSEM | VIDEO | DA1 | DA2 | DA3 | DA4 | EJECT | REC | PLAY | PAUSE/STILL |
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IN | ENTRY | OUT | INSERT |
| TC | TOP |
| VIDEO | AUDIO |
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| CANCEL PREVIEW | AUTO EDIT | PREROLL | STAND BY | REW | STOP | FF |
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| USER | SERVO/SYS | TIME CODE | ON SCREEN | OTHERS |
| RELEASE | |
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| REV | FWD | ||||||||
in the table below. |
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Menu setting | Error correction circuit | Error conceal circuit |
NORMAL | o | o |
[ENTRY] button |
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| [PLAY] | [REW] | [FF] |
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[PREVIEW] button | button | button | button | ||
NO CONCEAL | o | x |
NO CORRECTION | x | x |
o : Activated |
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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.
8-6. 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.
Increasing/decreasing the playback speed by 7%
1.During playback, press the [FF] or [REW] button while pressing the [PLAY] button.
While the [FF] button is pressed: The playback speed is increased by about 7%.
While the [REW] button is pressed: The
playback speed is decreased by about 7%.
2.Operation differs depending on which button you release first.
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.
If you release the [FF] or [REW] button first, the normal playback mode is restored.
Synchronized Running mode
The tapes loaded on two VCRs can be played back in sync with the same time code data.
Connection
•Connect the [REMOTE IN] connector of the controlled VCR and the [REMOTE OUT] connector of the control VCR with a
•Input external sync signals to synchronize the two VCRs.
Setting
•Set the Remote/Local switch to “Remote” on the controlled VCR and set the Remote/Local switch to “Local” on the control VCR.
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.
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