Xc-Is21Md - Pioneer XC-IS21 MD Servise Manual

XC-IS21MD

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3 7 63 1515 0
Step No. Operation Keys and Operation Method
7 Press the REC key.
8 When J+ is larger than J-, press the REC key and
display the C1 error when the focus offset is
applied up to +0.4 µm.
(Do nothing when J- is larger than J+.)
9 Change the value with the ASES Key (Up) and the
REC MENU key (Down)until the value becomes the of+03 c0025
same.
10 Press the PLAY key.
11 Power OFF
Connection diagram
LEVEL
TE
L 13942296513
GND
7 Jitter/C1 Error Check at the time of Playback
Step No. Operation Keys and Operation Method
1 Short circuit MECH TEST MODE during the
power ON.
(Fig.6-1)
2 Insert the test disc GGF1328 (MMD-212).
3 Perform " Normal Adjustment " (step 3, step 4).
4 Press the REC key.
5 Press the ENTER key and display the inner
circumference address.
6 Press the PLAY key and display the C1 error for
the inner circumference.
www
.
7 Press the CHARA key.
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Jitter Meter
JITTER
ADRES 0050
a0050 c0015
x ao
y
i
A0062 c0013
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8
FL Display
of-04 c0020 The C1 error with application of a focus offset of
about 0.4 µm on the – side is displayed.
The jitter value (J–) at this time is recorded.
of+04 c0032
of+04 c0032 When the smaller offset of the jitter value has
been corrected mistakenly, press the ENTER
of+02 c0020 key and return to step 4.
COMPLETE The mean value of the changed set value and
the offset of the other setting limit is written into
the EEPROM as the compensation offset.
Test mode is ended.
SIDE A
MD CORE MAIN UNIT
Q Q
3 6 7 1 3
EFM MON
REFO
FL Display
EJECT Test mode
LOADING
GRT AJST
AUTO AJST
TEST PLAY TEST PLAY mode
Check that the jitter value meets the standard
value of the following table.
GGF1328 (MMD-212) jitter value
Inner circumference
Intermediate circumference 29 nsec or less
u163
Outer circumference
.
Seven data are acquired, the largest and the
AVE. c0012 smallest value are discarded, and fixed display
is made for the mean value of the remaining
five data. Check that this value is 200 or less.
2 9 9 4 2 8
6 Defocus adjustment
Status Remarks
1 5 0 5 8 2 9 9 4
Status Remarks
m
31 nsec or less
co
29 nsec or less
9 9
2 8 9 9