Adjustment - JVC SR-V101US Service Manual

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4.1 Before adjustment
4.1.1 Precaution
• The adjustments of this unit include the mechanism com-
patibility and electrical adjustments. During the perfor-
mance of this work, be sure to observe the precautions for
each type of adjustment.
• If there is a reference to a signal input method in the signal
column of the adjustment chart, "Ext. S-input" means the
Y/C separated video signal and "Ext. input" means the
composite video signal input.
• Unless otherwise specified, all measuring points and
adjustment parts are located on the Main board.
4.1.2 Required test equipments
• Color (colour) television or monitor
• Oscilloscope: wide-band, dual-trace, triggered delayed sweep
• Signal generator: RF / IF sweep / marker
• Signal generator: stairstep, color (colour) bar [NTSC]
• Recording tape
• Digit-key remote controller(provided)
4.1.3 Required adjustment tools
Roller driver
Jig RCU
Back tension cassette gauge
Alignment tape(MHP)
Alignment tape(MHP-L)
Roller driver
PTU94002
Alignment tape
(SP, stairstep, NTSC)
MHP
: Used --- : Not used
Mechanism
Electrical
compatibility

adjustment

adjustment
---
Jig RCU Back tension cassette gauge
PTU94023B PUJ48076-2
Alignment tape
(EP, stairstep, NTSC)
MHP-L
SECTION 4
ADJUSTMENT
4.1.4 Color (colour) bar signal,Color (colour) bar pattern
Color(colour) bar signal [NTSC]
White(100%)
White(75%)
100 IRE
1V
40 IRE
Q
Horizontal sync
4.1.5 Switch settings
When adjusting this unit, set the VCR mode and switches
as described below.
• When using the Jig RCU, it is required to set the VCR to the
Jig RCU mode (the mode in which codes from the Jig RCU can
be received). (See "section 2 SPECIFIC SERVICE INSTRUC-
TIONS".)
Jig RCU
[Data transmitting method]
Depress the " "( 3 ) button
after the data code is set.
---
• Set the switches as shown below unless otherwise specified
on the relevant adjustment chart. The switches that are not list-
---
ed below can be set as desired.
--- If the VCR is not equipped with the functions detailed below,
setup is not required.
AUTO PICTURE/VIDEO CALIBRATION/
B.E.S.T./D.S.P.C.
PICTURE CONTROL/SMART PICTURE
VIDEO STABILIZER
TBC
Digital 3R
VIDEO NAVIGATION/TAPE MANAGER
BLUE BACK
World of Free Manuals
Color(colour) bar pattern [NTSC]
(75%)
Burst
40 IRE
White
Q
I 100%
CUSTOM CODE
43: A CODE
DATA CODE
Fig.4-1a Jig RCU [PTU94023B]
OFF
NORMAL/NATURAL
OFF
ON
ON
OFF
OFF
I Black
INITIAL MODE
(No.82996)1-9