Pioneer PDR-L77 Service Manual page 54

PDR-L77
QQ
3 7 63 1515 0
6.5 ADJUSTMENT 2 (SERVO SYSTEM ADJUSTMENT)
For servo adjustment, set the INPUT SELECTOR to DIGITAL.
"DIGITAL" segment lights this time.
INPUT
SELECTOR
Use the RECORD button and the REC MUTE button to make
the adjustments.
•
To register an adjustment, press the SET button.
SKIP ID
SET
To reset the adjusted values to the initial settings, press and hold the
CLEAR button for 4 seconds.
SKIP ID
TE
L 13942296513
6.5.1 Focus Offset Adjustment
Test Point CN102 - pin 6 (FE)
RECORD button and REC MUTE button
Adjustment Point
0 mV ± 10 mV
Adjustment Value
Symptom when out of
The model does not focus-in
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.
www FE
10 : 1
VC
10:1 probe
.
54
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‡
REC
CLEAR
Oscilloscope
x ao
y
i
http://www.xiaoyu163.com
8
CD-R CORE ASSY
Q Q
3 6 7 1 3
Fig. 6 Adjustment points
u163
.
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
m
co
9 9
CN102
6
1
1 : RF
2 : VC
3 : MPP
4 : TE
5 : VC
6 : FE
2 8 9 9