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Sanyo VHR-850 Service Manual page 9

Video cassette recorder
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2. ELECTRICAL ADJUSTMENT
L.
VCR PRESETTING
This VCR need three basic presetting
by using the menus displayed
on-screen.
After all connection
have been made, then follow steps
1 to 3 to preset the VCR.
The three presetting
steps will be displayed
in sequence
on TV screen.
The setting are entered
with the remote control.
Turn on the VCR
1.
Adjusting the TV receiver to the video channel:
The AUTO
SETUP
screen will appear.
When the video channel
has been preset,
press the OK button on the remote control.
2.
Country selection:
Using the numeric
button, select the country of use.
3.
Language
selection:
When the desired language
has been select, press the MENWTV
button directly before prevent auto tuning
will starl.
When steps 1 to 3 have been finish, ready to operate
the all operating
mode.
2-1. SERVO CIRCUIT ADJUSTMENT
These
adjustments
should be done upon completion
of the tape transport
adjustments.
If the tape transport
adjustments
(except
the tilt adjustment)
are done after these adjustments,
follow the procedures
again in
section 2-1-3,
"Switching
position adj."
U"
When
a cassette
tape is loaded,
auto-tracking
will
be set immediately
after starting the first playback.
As this will daviate
the
tracking center set, be sure to press the channel buttons (-F) and (–)
once directly after starting playback
to prevent auto-tracking
from being set.
2-1-1. TEST EQUIPMENT
AND STANDARDS
REQUIRED
Oscilloscope
Vertical
sensitivity
:5 mV/DIV,
external
trigger
Bandwidth
: more than 10 MHz
Alignment
Tape
VHJ-0009
or VHJ-O023
: SP mode, monoscope,
6 KHz
Blank Tape
VHS-type
cassette
tape
Monitor TV
2-1-2. LOCATION
OF ADJUSTMENT
POINTS
L
L
P12000B
TP101
:
L
o
D'
1
VR351
:...
:0':
. . ../
no
on
CP-1
PWB
(Foil side)
Fig. 2-1-1
-9-

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