5-4. Tape Path Adjustment
Purpose:Adjust the linearity of the head.
If the adjustment is not correct:Entrance sideExit side
Noise appears on the top and bottom of the screen
when playing back the tape that is recorded by other
recorders.
Normal
5-4-1. Adjustment Preparation
1) Clean the tape running surface (tape guides, drum, capstan shaft,
pinch roller).
2) Connect the adjustment remote commander to the remote
terminal.Entrance side is defective
3) Set the adjustment remote commander to the PATH mode (track
shift mode)* and release the auto tracking.
4) Connect an oscilloscope as follows:
CH1: Test connectorO PB RF terminal
External trigger: Test connectorO RF SWP terminal
5) Playback the tracking alignment tape WR5-1NP (NTSC), WR5-Exit side is defective
1CP (PAL) (Ref. No. J-6).
6) Confirm that the RF waveform on scope is flat both at entrance
side and exit side.
If the RF waveform is not flat, perform the adjustment byFig. 5-4.
referring to section 4-2.)
7) After the adjustment is completed, release the PATH mode
(track shift mode)*.
TG3TG4TG5TG6
TG2Capstan shaft
TG7
Drum
Pinch roller TG1
T reel
S reel
Fig. 5-5.
* Setting and releasing the track shift mode
In case of the DCR-TRV230
SettingReleasing
1. Select page: 0, address: 01 and set data: 01.1. Select page: 0, address: 01 and set data: 01.
2. Select page: F, address: 22 and set data: 88, and pr2. Select pagess the PeA: FUSE, address: 22 and set data: 80, and press the PAUSE
button.button.
3. Select page: 2, address: 2E and set data: 02. (Note)3. Select page: 2, address: 2E and set data: 00.
4. Select page: 0, address: 01 and set data: 00. (Note)
Note:In case of the Digital8 only, set the data of page: 2, address: 2E.
N 36 N |
ACEC
