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JVC PC-X250 Service Manual page 7

Cd portable component system

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TAPE DECK ADJUSTMENTS
1
HEAD AZIMUTH ADJUSTMET
( 1 )
Load the test tape TCC-182A 8KHz for azimuth
adjustment.
( 2 )
Press the PLAY button.
( 3 )
Use a cross-tip screwdriver to turn the screw for azimuth
adjustment so that the left and right output are maximized
( 4 )
Press the STOP button
( 5 )
After completion of the adjustment. Use thread lock(TB-1401B)
to secure the azimuth-adjustment screw.
2
AC BIAS FREQUENCY ADJUSTMENTS
( 1 )
Connect frequency counter to CN202(BS);
( 2 )
R/P swith in recording state;
( 3 )
Adjusting T801 use a plastic screwdriver, AC bias frepuency ;61kHz +/- 1kHz..
3
TAPE SPEED ADJUSTMENT
( 1 )
Insert the test tape(MTT-111N,3,000 HZ)
( 2 )
Press the PLAY button.
( 3 )
Use a flat-tip screwdriver to turn the VR 501.
Adjust VR501 so that the frequency counter
become 3,000Hz
TAPE HEAD AND SPEED ADJUSTMENT DIAGRAM
CASS DECK
A
L. SW
P/R HEAD
A DECK
E HEAD
P HEAD
B DECK
PC-X250
A
L. SW
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