Pioneer PDA-5002, Service Manual

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111
PDP-503CMX, PDP-503MXE, PDA-5002
CH1 : Y SUSOUT Under (K2203), 50V/div
CH2 : Y SUSOUT Upper (K2212), 50V/div
CH4 : YPR-U1 (K2038)- Trigger, 5V/div
Trigger : 2msec delay
CH1 : Y SUS-D Under (K2225), 50V/div
CH2 : Y SUS-D Upper (K2207), 50V/div
CH4 : YPR-U1 (K2038)- Trigger, 5V/div
Trigger : 2msec delay CH1 : Y SUS-U Under (K2224), 50V/div
CH2 : Y SUS-U Upper (K2220), 50V/div
CH4 : YPR-U1 (K2038)- Trigger, 5V/div
Trigger : 2msec delay
SUS-D Adjustment (Y DRIVE)
Waveform Confirmation in Adjustment completion
Measure the SUSOUT waveform
SUS-U Adjustment (Y DRIVE)
1ms/div
5
µ
s/div
1ms/div
5
µ
s/div
1ms/div
500ns/div
1ms/div
10ns/div
1ms/div
500ns/div
Confirm it to waveform of CH1 / CH2 of the part which enclosed in
the following circle whether there is not a large gap.
(A gap of the quantity that shifts 20nS and adjusted remains.)
When adjust in the power supply ON state, change so that the
quantity of gap that adjusted by temperature-rise of the pulse
module becomes small.
Therefore, perform high power OFF (RS-232C command: DRF)
except measurement time of waveform when adjusts, and
adjustment error by temperature-rise does not occur.
20 - 25ns
1ms/div
200ns/div
Lower PM
Upper PM
Lower PM
Upper PM
1ms/div
10ns/div
20 - 25ns
Caution:
Not absolutely mistaking upper
and lower of waveform.
Magnify 6SF block
Magnify 6SF block Magnify 6SF block
Magnify 6SF block
Magnify the adjustment waveform
Magnify 6SF block
Magnify 6SF block
Magnification Magnification
Magnification
Magnification