Memorex MT2325, Руководство по обслуживанию

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ELECTRICAL ADJUSTMENTS
D1-3
2-9: HORIZONTAL PHASE
1.
2.
3.
4.
5.
Receive the color bar pattern.
Using the remote control, set the brightness and
contrast to normal position.
Activate the adjustment mode display of Fig. 2-1 and
press the channel button (1) on the remote control.
The Fig. 2-7 appears on the display.
Press the channel button (1) on the remote control.
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on right
and left becomes minimum.
2-10: HORIZONTAL SIZE
1.
2.
3.
Receive the crosshatch pattern.
Using the remote control, set the brightness and
contrast to normal position.
Adjust the VR402 until the center of crosshatch is
square.
2-11: PIN CUSHION
1.
2.
3.
Receive the color bar pattern.
Using the remote control, set the brightness and
contrast to normal position.
Adjust the VR403 until the vertical line becomes
straight.
2-12: VCO FREERUN
1.
2.
3.
4.
5.
6.
7.
Place the set with Aging Test for more than 5 minutes.
Receive the UHF.
Disconnect the Antenna while receiving the UHF and
set to the Noise screen.
Once turn off the Power and turn on the Power again.
Approxi. 3 seconds later, input the Antenna again.
Connect the digital voltmeter to TP201.
Adjust the L205 until the digital voltmeter is 3.1
±
0.05V.
2-13: SEPARATION 1, 2
1.
2.
3.
4.
5.
6.
7.
Receive the stereo broadcasting signal.
Connect the AC voltmeter to AUDIO OUT JACK
through stereo filter (L=400Hz, R=2KHz).
Activate the adjustment mode display of Fig. 2-1 and
press the channel button (7) on the remote control.
The Fig. 2-8 appears on the display.
Press the channel button (2) on the remote control.
Press the VOL. UP/DOWN button on the remote control
until the output of L-CH and R-CH become minimum.
Press the CH UP button once to set to "SEPARATION
2" mode.
Press the VOL. UP/DOWN button on the remote control
until the output of L-CH and R-CH become minimum.
Fig. 2-8
1. LEVEL ADJ
2. SEPARATION 1
3. SEPARATION 2
4.
5.
6.
7.
8. 0. RETURN
2-14: CONSTANT VOLTAGE
1.
2.
3.
4.
5.
Place the set with Aging Test for more than 15 minutes.
Using the remote control, set the brightness and contrast
to normal position.
Connect the digital voltmeter to TP401.
Set condition is AV MODE without signal.
Adjust the VR502 until the digital voltmeter is 117
±
0.5V.