5-31
DCR-TRV140/TRV140E/TRV140M
2-4.
TAPE PATH ADJUSTMENT
2-4-1.
Preparations for Adjustment
1) Clean the tape path face (tape guide, drum, capstan shaft, pinch
roller).
2) Connect the adjustment remote commander.
3) Turn on the HOLD switch of the adjustment remote com-
mander.
4) Select page: 3, address: 33, and set data: 08.
5) Connect the oscilloscope to I/F unit for LANC control.
Channel 1: PB RF (MON)
Channel 2: SWP
Note:
Connect a 75
Ω
resistor between the test point PB
RF (MON) and GND.
75
Ω
resistor (Parts code: 1-247-804-11)
6) Playback the SW/OL standard tape. (WR5-2D)
7) Check that the oscilloscope RF waveform is flat at the entrance
and exit.
If not flat, perform the following section 2-4-2. until it is flat.
8) Perform “Processing after operations”, after completing ad-
justment.
Test point of I/F unit for LANC control
[Processing after operations]
1) Connect the adjustment remote commander, and turn on the
HOLD switch.
2) Select page: 3, address: 33, and set data: 00.
3) Remove the power supply from the unit.
Fig. 5-2-2
CH1
Normal
CH2
CH1
Entrance side faulty
CH2
CH1
Exit side faulty
CH2
Pin No.
Signal Name
Pin No.
Signal Name
N.C
BL
15
EVF VCO
14
EVF VG
N.C
BL 4.75
9
PB RF (MON)
3 (N.C)
BPF MONI
6, 8, 10,
GND
N.C
TMS
7 (N.C)
REC RF (RF IN)
N.C
TDI
N.C
TDO
5
SWP
N.C
TCK
4 (N.C)
CAP FG
2 (N.C)
IR VIDEO
Note:
Pin No. are those of CN1011 on VC-273 board.
Table 5-2-1
Ver 1.1 2003. 06