5-53
2-3-4. Preparation for Tape Path Checking and
Adjustment
• Preparations before adjustment 1
(Connection and setting)
1. Clean the tape running side.
(Refer to “2-4-2. Cleaning of Tape Path System”.)
2. Connect the adjustment remote commander (J-5) to the LANC
jack.
3. Turn the HOLD switch of the adjustment remote commander
to the ON position.
4. Connect an oscilloscope to VC-242D board CN007 via the
CPC-13 jig (J-6082-388-A).
Channel 1: VC-242D board, CN007 Pin 2 (Note)
External trigger: VC-242D board, CN007 Pin 3
Note: Connect a 75 Ω resistor between pins 2 of CN007 and 1
(GND).
75 Ω resistor (Parts code: 1-247-804-11)
CN007 of VC-242D board
5. Playback the alignment tape for tracking (J-20). (XH2-1A1
exclusive)
6. Select page: 3, address: 33, and set data: 08.
7. Select page: 3, address: 26, and set data: 31.
8. Check the states at the entrance and exit of the RF waveform.
If not flat at either side, perform the adjustments from
“Flowchart Adjustment start-2” on page 5-50.
9. After completing the adjustment, perform “Procedure after
checking operations”.
Procedure after operations
1. Connect the adjustment remote commander to the LANC jack
and set the HOLD switch to the ON position.
2. Select page: 3, address: 26, and set data: 00.
3. Select page: 3, address: 33, and set data: 00.
4. Disconnect the power of the unit.
• Preparations before adjustment 2
(Preparing an exclusive tracking tape (J-20))
Remove the lid of the cassette due to the C mechanism structure.
Adjustment remote
commander (RM-95
Normal
Faulty entrance side
Faulty exit side
Assemble without this part.
Cassette lid
Torsion spring
Exclusive tracking tape
This is to prevent the lid from rising
when the damper is removed so that
it does not come in the way of the
mirror (J-15) inserted, when checking
the slack and curl between the
capstan and TG7.
Pin No.
1
2
3
4
5
6
7
8
9
10
Signal Name
GND
RF MON
SWP
RF IN/LANC JACK IN
TDO
GND
TCK
TDI
PANEL COM
TMS
Pin No.
11
12
13
14
15
16
17
18
19
20
Signal Name
H START
XHD/PSIG
EVF VB
EVF VR
EVF VCO
GND
EVF BL –
EVF VG
LANC SIG
EVF BL +
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