54
PDR-L77
6.5 ADJUSTMENT 2 (SERVO SYSTEM ADJUSTMENT)
[Procedure]
(1) Press the AUTO/MANUAL button until "01 F4" appears on the FL display.
(2) Adjust with the RECORD button and the REC MUTE button until the value for Pin 6 of CN102 is 0 mV
±
10 mV.
(3) Press the SET button to register the adjustment.
Once the adjustment is registered with the SET button, "D.VOL" on the FL display lights.
6.5.1 Focus Offset Adjustment
CN102 - pin 6 (FE)
Test Point
Adjustment Point
Adjustment Value
0 mV
±
10 mV
Oscilloscope
10:1 probe
10 : 1
FE
VC
RECORD button and REC MUTE button
For servo adjustment, set the INPUT SELECTOR to DIGITAL.
“DIGITAL” segment lights this time.
Use the RECORD button and the REC MUTE button to make
the adjustments.
To reset the adjusted values to the initial settings, press and hold the
CLEAR button for 4 seconds.
To register an adjustment, press the SET button.
Fig. 6 Adjustment points
CN102
1
1 : RF
2 : VC
3 : MPP
4 : TE
5 : VC
6 : FE
6
CD-R CORE ASSY
INPUT
SELECTOR
•
‡
REC
SKIP ID
SET
SKIP ID
CLEAR
Symptom when out of
adjustment
The model does not focus-in
Summary of Contents for PDR-L77
Page 21: ...PDR L77 21 A B C D 5 6 7 8 5 6 7 8 3 5 A CDR SERVO AMP MULTI PLEXER A1 5 A4 5 A3 5 A1 5 1 ...
Page 43: ...PDR L77 43 A B C D 1 2 3 4 1 2 3 4 Q7006 Q7009 Q7051 PWSB ASSY G ANP7337 B SIDE B G ...
Page 45: ...PDR L77 45 A B C D 1 2 3 4 1 2 3 4 SIDE B FLDP ASSY 1 2 H FLDP ASSY 2 2 H ANP7337 B H ...
Page 69: ...69 PDR L77 Anode Connection ...
