Service manual

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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 versions "Rev A.02.01". Use the test setup described in "Test Setup for
S.A.".
Signatures:
+ 15V U322-20 U346-13
- 15V U346-4
+5V U345-1,20 U346-12
Common U322-1,3,10,12 U345-10 U346-5
+ 12VREF U322-8
SD(0) U322-7= UFOA
SD(1) U322-6 = AP48
SD(2) U322-5 = U93A
SD(3) U322-4 = P070
SD(4) U322-16 = 834A
SD(5) U322-15 = 8A16
SD(6) U322-14 = 1UUO
SD(7) U322-13 = H083
WR1/WR2 U322-2,18 = P9HA
B1/B2/XFER U322-17, 19 = HCA7
SDB(0) U345-3 = F592
SDB(1) U345-4 = F3P2
SDB(2) U345-7 = 4461
SDB(3) U345-8 = 5UA2
SDB(4) U345-13 = H82C
SDB(5) U345-14 = H82C
SDB(6) U345-17 = 6AOC
SDB(7) U345-18 = H82C
SLW1 U345-2 = OU8C U346-8 = OU8C
SLW2 U345-5 = 1187 U346-9 = 1187
SLW3 U345-6 = 7P88 U346-16 = 7P88
SLW4 U345-9 = 8PCU U346-1 = 8PCU
CLK U345-11 - CCF9
TOGGLE U345-16 - 98H4