Electrical Adjustment - Sanyo VHR-VX400 Service Manual

2. ELECTRICAL ADJUSTMENT
VCR PRESEITING
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 MENUTW button directly before prevent auto tuning
will start.
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."
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 buttonsA (+) and r(–) 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-0023 : SP mode, monoscope, 6 KHz
Blank Tape VHS-type cassette tape
Monitor TV
2-1-2. LOCATION OF ADJUSTMENT POINTS
PlB470mE
TP182 ; ; TP183
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o
TPI 01
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0
0
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( PX'~!le)
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IC301
CP-1 PWB (Foil side)
Fig. 2-1-1
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