Service manual

Replaces page 38 99
Table 3-13. Readback, Slew Rate, Analog Switch Signature Analysis (Secondary)
Description:
These signatures check the readback DAC U322, slew rate decoder U345, and analog switch U346. The
signatures are valid for U301 firmware revisions "Rev A.01.01" and "Rev A.01.02". Use the test setup described in "Test
Setup for S.A.".
Signatures:
+ 15V U346-13
- 15V U346-4
+5V U322-20= 1CAU U345-1,20 = 1CAU U346-12= 1CAU
Common U322-1,3,10,12 U345-10 U346-5
+ 12VREF U322-8
SD(0) U322-7= lP45
SD(1) U322-6 = 2OOF
SD(2) U322-5 = 89AA
SD(3) U322-1 = 93AU
SD(4) U322-16 = 7792
SD(5) U322-15 = O343
SD(6) U322-14 = FPOU
SD(7) U322-13 = 674O
WR1/WR2 U322-2,18 = UFP7
B1/B2/XFER U322-17,19 = C975
SDB(0) U345-3 = 55U3
SDB(1) U345-4 = 43AA
SDB(2) U345-7 = F421
SDB(3) U345-8 = 9CP2
SDB(4) U345-13 = OOFH
SDB(5) U345-14 = O6OO
SDB(6) U345-17 = 3U83
SDB(7) U345-18 = OO1U
SLW1 U345-2 = OPAC U346-8 = OPAC
SLW2 U345-5 = 1O87 U346-9 = 1O87
SLW3 U345-6 = 6U88 U346-16 = 6U88
SLW4 U345-9 = O337 U346-1 = O337
CLK U345-11 = H53P