Teac ESOTERIC P-2S - Page 8

P-2s |
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Connect the frequency counter between U406 (12)
and earth (frame), then adjust C466 (MAIN PCB)
so that the frequency counter reads 16.9344MHz.
Clock frequency adjustment
U406
MAIN PCB
4-1-2. Pickup actuator operation check
Check that the pickup assembly moves to the
innermost track of the disc when the power is
turned ON, and then the pickup actuator moves up
and down three times.
4-1-3 PLL frequency adjustment
1 ) Set the player to the stop mode, and open the
disc tray.
2 ) Ground the TP—1 pin (8).
3°) Connect a frequency counter between TP-2
and ground, and adjust V403 for a counter
reading of 4.32+0.05 MHz.
( Use a probe with x10 sensitivity with the
frequency counter.)
4-1-4 Sted (feed) balance adjustment
1) In the stop mode, move the pickup towards the
front.
2 ) Adjust V406 (S.BAL) so that the voltage at
TP-1 pin (9) becomes 0 V.
4-1-5 Tracking balance adjustment
1) Load the test disc.
2 ) Ground the TP-1 pin 5.
3 ) While pressing the PLAY button repeatedly,
adjust V401 (T.BAL) so that the tracking
error waveform at TP-1 pin (6) swings on the
same level symmetrically centered around O V.
4-1-1 7Ov7RBRBE
MAIN PCB@U406MEY 12E7—2R (DL—L) Mc
FRED 9 —EIBIL. 16.9344MHzIcHSE 5 C466
(MAIN PCB) #33.
Frequency Counter
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4-1-3 PLLA
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Samelevel
ar:
ov.
eat
Fig.4—4