69
PDR-W739
[Procedure]
(1) Press the SYNCHRO button in Stop mode.
Note: Make sure the unit is in Stop mode.
(2) Check that "OPT" disappears on the FL display.
(3) Press the AUTO SPACE button so that "CDR 04ff34
∗∗
" appears on the FL display.
(4) Press the FINALIZE button for focus-in.
(5) Press the PLAY/PAUSE
6
button for CAV-servo spindle kick.
(6) Press the PLAY/PAUSE
6
button to close the tracking servo, then set the unit to Playback mode.
(7) Adjust with the REC LEVEL knob until the above adjustment value to be reached is obtained.
Press the REC LEVEL knob to register the adjustment. Once the adjustment is registered with the REC LEVEL knob, " ERASE " on the
FL display will disappear.
(8) Press the STOP button to stop the unit.
Note: Adjustment must be done around mid-radius on a disc.
6.5.4 Focus Bias Adjustment
CN102 - pin 1 (RF)
Test Point
Adjustment Point
Adjustment Value
SYNCHRO button, REC LEVEL knob
Adjust until RF jitter is minimal or that the eye pattern of the RF waveform is most open.
Jitter Meter
10:1 probe
or
10 : 1
Oscilloscope
RF
VC
Symptom when out of
adjustment
Sound broken, record characteristics deteriorate
Содержание PDR-W739
Страница 20: ...PDR W739 20 A B C D 1 2 3 4 1 2 3 4 A2 5 A1 5 A5 5 A2 5 2 3 5 CD R CORE ASSY 3 5 3 5 A ...
Страница 48: ...PDR W739 48 A B C D 1 2 3 4 1 2 3 4 H IC1505 IC1503 Q1501 IC1504 IC1502 MAIN ASSY H ...
Страница 49: ...PDR W739 49 A B C D 5 6 7 8 5 6 7 8 H PNP1472 A SIDE B ...
Страница 55: ...PDR W739 55 A B C D 5 6 7 8 5 6 7 8 N L HEAD PHONE ASSY L OPERATING1 ASSY N CN802 H CN1402 H ...
Страница 56: ...PDR W739 56 A B C D 1 2 3 4 1 2 3 4 N L HEAD PHONE ASSY L OPERATING1 ASSY N Q708 IC701 ...
Страница 86: ...86 PDR W739 ...