Adjustment; 3Cd Check; 3Cd Slider Operation Confirmation; 3Cd Rf Output And Jitter Level Confirmation - Pioneer PDR-W839 Service Manual

6. ADJUSTMENT

3
CD CHECK
NOTE: There is no information to be shown in this 3CD adjustment.

6.1 3CD SLIDER OPERATION CONFIRMATION

(1) Eject the disc ,and when all 3CD tray stay at the home position,
turn off the power. (Refer to the right picture)
(2) Move the slider gear so that the slider move to the outer
side. (Refer to the right picture.)
(3) Turn on the power and confirm the following 1~5 movement.
1 The pick-up move to the most inner side.
2 The tray do the clamping movement.
3 The pick-up do the spindle-kick movement ,and then do the
LD ON and FOCUS ON movement. (3 times)
4 Redo the 3 movement once more.
5 Confirm the FL display that the set detect NO DISC.

6.2 3CD RF OUTPUT AND JITTER LEVEL CONFIRMATION

(1) Set the RW disc to the CD-R side.
(2) Copy from 3CD side to CD-R side at normal and double speed.
(3) Confirm the RF output and jitter level of 3CD side at normal and double speed .
[ Standard Value]
(Use STD-903 or STD-905 Test Disc)
Normal Speed
JITTER under 25 ns
RF LEVEL about 1.2 V
V: 50mV/div., H: 500msec/div.
(play)
RF Output Waveform
at IC1101 PIN25
Double Speed
under 20 ns
about 1.0 V
p-p p-p
DANGER – LASER RADIATION WHEN OPEN.
AVOID DIRECT EXPOSURE TO BEAM.
3CD Tray at Home position
Check Point
IC1101 PIN25
PDR-W839
Slider Gear
3CD CORE
ASSY
SIDE B
63