Technics SL-PJ37A

MEASUREMENTS AND ADJUSTMENTS
Caution:
1. It is very dangerous to look at or touch the laser beam. (Laser radiation is invisi
With the unit turned “on”, laser radiation is emitted from the pickup lens.
Avoid exposure to the laser beam, especially when performing adjustments.
2. During laser power or focus offset adjustment, never connect the other probe to the unit.
(Otherwise the unit's power supply will sustain damage.}
Oscilloscope
PREPARATION
. Remove the cabinet (see Ref No. 1 of the disassembly instructions.)
. Remove the disc-holder (see Ref No. 6 of the same).
. Place the test disc on the turntable.
. Turn "ON" the power switch at the player.
. Push the bracket of tray SW (S1001) in the direction of the arrow
and release it.
OBWN—
Disc Lid
Note: If the test disc fails to rotate, press the tray switch again.
Test Disc
ble.)
ADJUSTMENT POINTS
@ Servo P.C.B. @ Main P.C.B.
Laser power adj. Focus offset adj. Servo
R3501
(Resistor)
R3562
(Resistor) |
Jumper
i
(—) CNII
CNi2
VR5O!
[ |cna3i
CN40I
_ Main P-C.B.