Sony SCD-XB770 Service Manual page 19

Items
HENSHIN RYOU
SPIN DOWN TIME (msec)
LOAD OUT TIME (msec)
Measured Data Reading Method:
To judge the check result, the measured data must be read.
1. When "AUTO CHECK OK" is displayed, rotate the
2. When "13. DISP RSLT?" is displayed, press the
3. "PLEASE WAIT" will be displayed and in several seconds, "13. DISP RESULT" will be displayed.
[ AMS
4. Rotate the l L
[ AMS
5. Press the
l L
6. Compare the displayed value with the following specified value.
7. Hence, repeat step 4 to 6 (display is variable) and read the measured data respectively.
8. Compare the measured data with the specified value to check for NG item.
Note: Blank display of measured value means that an error occurred during the checking or no measurement was taken place.
Specified Value:
(1) SACD (Use the test disc SATD-S5 or SATD-S4)
Note: Measured values in check items are typical ones.
Check items
LOAD IN TIME (msec) : 2110
SPIN UP TIME (msec) : 1993
PF/VC/FE/TE AVRG (ORG) : 8E, E, 1E2, 12
PF/VC/FE/TE AVRG (ADJ) : 9D, E, 6, 2
PI/TRVS PP (ORG/ADJ) : 80, 129, 100, 90
PIOR/CCR/TRCR : 1B, 31, 1F
FOCUS/TRK GAIN : 29, 35
FBIAS/TRVSC/TRCR2 : 2FE, 14, 6
READ TOC TIME (msec) : 1098
PSP AMPLITUDE : 2387
1/3 SEEK TIME : 2268581, 625121, <_>, 1446850
F) AVE/MIN/MAX (msec) : 926, 909, 938
R) AVE/MIN/MAX (msec) : 919, 901, 937
1/MAX SEEK TIME : 2268581, 0, <_>, 2268581
F) AVE/MIN/MAX (msec) : 1846, 1819, 1879
R) AVE/MIN/MAX (msec) : 1837, 1829, 1849
ERROR RATE
PO MAX/AVE FRAME : 0, 0
PO MAX/AVE NUM : 480, 28
PI1 MAX/AVE FRAME : 0, 0
PI1 MAX/AVE NUM : 320, 11
PI2 MAX/AVE FRAME : 0, 0
PI2 MAX/AVE NUM : 41, 0
SPIN DOWN TIME (msec) : 1312
LOAD OUT TIME (msec) : 1934
Eccentricity measurement
Eccentricity (actual eccentric amount) of disc, disc pulley total
Time from spindle brake application to rotation stop
Time until loading table comes out from the state where a disc is in chuck
[
l
[ AMS
l
]
dial clockwise by 1 click, and the "LOAD IN" will be displayed.
]
dial to enter. The LOAD IN TIME measured value will be displayed.
Description
AMS ]
dial clockwise by 2 clicks.
L
]
dial to enter.
L
1300 to 2000
1800 to 2450 msec
RF: 91-C8, VC: 1F8-8, FE: 1D1-30, TE: 198-75
RF: 91-AF, VC : 1F8-8, FE: 1EE-12, TE: 1EA-16
PI ORG: 80-100, PI ADJ: 80-95, TRVS ORG: 53-118, TRVS ADJ: 45-132
No specified value given
FOCUS: 1E-35, TRK: F-40
F.BIAS: 1E2-3A, TRVSC: 1E4-4D TRCR2: no specified value given
1350 to 2050
1450 to 2150
AVE: 1150 msec or less, MAX: 1300 msec or less
AVE: 1150 msec or less, MAX: 1300 msec or less
AVE: 2250 msec or less, MAX: 2500 msec or less
AVE: 2250 msec or less, MAX: 2500 msec or less
MAX: 0, AVE: 0
MAX: 1500 or less, AVE: 200 or less
MAX: 0, AVE: 0
MAX: 1500 or less, AVE: 200 or less
MAX: 0, AVE: 0
MAX: 1500 or less, AVE: 200 or less
1300 to 2100
1300 to 1850
SCD-XB770
Ver 1.1 2001.07
Remarks
For the CD only are measured
• Read by dividing by 10
• 0 may be displayed if eccentricity
is small (10um or less) (Due to
measurement reason)
FG (IC901 pin ys) monitoring
Loading out switch HtL
Specified value
* Items are not used in the
SATD-S5.
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