Sony SCD-XB770 Service Manual page 20

SCD-XB770
Ver 1.1 2001.07
(2) CD (Use the test disc PATD-012 or YEDS-18)
Note: Measured values in check items are typical ones.
Check items
LOAD IN TIME (msec)
SPIN UP TIME (msec)
RF/VC/FE/TE AVRG (ORG)
RF/VC/FE/TE AVRG (ADJ)
PI/TRVS PP(ORG/ADJ)
PIOR/CCR/TRCR
FOCUS/TRK GAIN
FBIAS/TRVSC/TRCR2
MIN JITTER AT F.BIAS
READ TOC TIME (msec)
1/3 SEEK TIME
F) AVE/MIN/MAX (msec)
R) AVE/MIN/MAX (msec)
1/MAX SEEK TIME
F) AVE/MIN/MAX (msec)
R) AVE/MIN/MAX (msec)
ERROR RATE
C1 MAX/AVE
C2 MAX/AVE
HENSHIN RYOU (1/10um)
SPIN DOWN TIME (msec)
LOAD OUT TIME (msec)
Note: RF, VC, FE, TE, FBIAS and TRVSC measured values are hexadecimal data with positive and negative signs. When comparing the measured
value with the specified value, refer to the following.
Hexadecimal (hex) display 9 bit data
FF
FE
01
00
1FF
101
100
20
: 2108
: 1354
: 8E, D, 1E3, 12
: 9C, C, 6, 2
: 84, 128, 100, 90
: 1B, 11, 1E
: 33, 28
: 10, 0, 5
: 147
: 827
: 311660, 103786, <_>, 207722
: 794, 699, 908
: 824, 661, 920
: 311660, 0, <_>, 311660
: 1991, 1964, 2015
: 1711, 1701, 1726
: 3, 0
: 0, 0
: 168
: 1342
: 1962
011111111 (+255)
011111110 (+254)
000000001 (+1)
000000000 (0)
111111111 (-1)
100000001 (-255)
100000000 (-256)
1300 to 2000
1300 to 1600
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: 55-155, TRVS-ADJ: 50-120
No specified value given
FOCUS: 24-53, TRK: 1A-4E
F.BIAS: 1D9-2A, TRVSC: 1E2-19 TRCR2: no specified value given
700 or less
1150 to 3150
AVE: 1200 msec or less, MAX: 1300 msec or less
AVE: 1200 msec or less, MAX: 1300 msec or less
AVE: 2200 msec or less, MAX: 2500 msec or less
AVE: 2200 msec or less, MAX: 2500 msec or less
C1 MAX: 15 or less
C2 MAX: 0
800 or less (100 um or less)
450 to 1500
1300 to 1850
Hexadecimal (hex) display 8 bit data
MAX
7F
7E
(+) Side
02
01
0
00
FF
FE
(-) Side
81
80
MIN
Specified value
01111111 (+127)
01111110 (+126)
00000010 (+2)
00000001 (+1)
00000000 (0)
11111111 (-1)
11111110 (-2)
10000001 (-127)
10000000 (-128)