DCR-TRV140, DCR-TRV140E, DCR-TRV140M (serv.man2) - Sony Movie Service Manual (repair manual). Page 8

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DCR-TRV140/TRV140E/TRV140M
Page
CORRECT
5-31
-
 : Points changed portion.    
&
 : Points added portion.
5-34
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 
 resistor between the test point PB
RF (MON) and GND.
75 
 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
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
3-1-1. Equipment to Required
1) TV monitor
2) Oscilloscope (dual-phenomenon, band width above 30 MHz
with delay mode) (Unless specified otherwise, use a 10 : 1
probe)
3) Frequency counter
4) Digital voltmeter
5) Audio level meter
6) Regulated power supply
7) Digital8 alignment tapes
• SW/OL standard (WR5-2D)
Parts code: 8-967-993-22
• Audio operation check for NTSC (WR5-3ND)
Parts code: 8-967-993-32
• System operation check for NTSC (WR5-5ND)
Parts code: 8-967-993-42
• Audio operation check for PAL (WR5-3CD)
Parts code: 8-967-993-37
• System operation check for PAL (WR5-5CD)
Parts code: 8-967-993-47
8) Adjustment remote commander (J-6082-053-B)
9) CPC jig connector (J-6082-539-A)
10) I/F unit for LANC control (J-6082-521-A)
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