Technics SL-PC25

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NEW SERVO GAIN ADJUSTER (Servo Amp. Adjusting Fixture)
The following introduces the improved version of the current servo gain adjuster (SZZP1017F):
Part number: SZZP1094C—1
Features:
(1) Contains all oscillation frequencies and output adjustments needed for focus servo gain, tracking servo gain,
and tracking balance adjustment (requires no external oscillator).
(2) Panel indicators indicate the best points of focus and tracking servo gains (no oscilloscope needed).
(3) Internal power supply eliminates the need for power supply from the CD player.
Power cord 8)
Servo gain indicator
Test connector
? (to CN102)
Oscillation 2 ya
level
adjustment
A
GND
(to
chassis)
(0.1~0.6 Vp-p)
Oscillation frequency adjustment
750 Hz
1,000 Hz Oscillation
1,200 Hz frequency
1,500 Hz multiplier
x1
Tracking On/Off (Normally use at On.)
X1.1 it Sh ;
ON: Servo circuit active.
OFF: Servo circuit inactive.
Power switch
Mode selector:
1. Tracking Servo Gain, Tracking Balance
2. Defeated
3. Focus Servo Gain
reversed, Refer to respective Service
( With some modets, positions 1 and 3 are
Manual for the switch position. )
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