Service manual

86
Table 3-4. Primary Microprocessor Signature Analysis
Description
: These signatures check primary microprocessor U203, ROM U205, and RAM U206. The signatures are
valid for ROM U205 firmware revision ''Rev A.01.01". Use the test setup described in "Test Setup for S.A.". Connect
the signature analyzer's CLOCK input to U207-9.
Signatures:
µ
µµ
µP U203
ROM U205 RAM U206
+5V U203-4,7,21 = 437U U205-28 = 437U U206-28,14 = 437U
Common U203-1,9,10 U205-14 U206-1,14,22
4 MHz U203-2,3
1 MHz U203-40 U205-22 U206-26
PLCR
U203-6 = +5V
A(0) U203-13 = OUC7 U205-10 = OUC7 U206-10 = OUC7
A(1) U203-14 = 3PU9 U205-9 = 3PU9 U206-9 = 3PU9
A(2) U203-15 = H88F U205-8 = H88F U206-8 = H88F
A(3) U203-16 = H2FP U205-7 = H2FP U206-7 = H2FP
A(4) U203-17 = 3P77 U205-6 = 3P77 U206-6 = 3P77
A(5) U203-18 = 8PO6 U205-5 = 8PO6 U206-5 = 8PO6
A(6) U203-19 = F73H U205-4 = F73H U206-4 = F73H
A(7) U203-20 = AU81 U205-3 = AU81 U206-3 = AU81
A(8) U203-29 = FCUU U205-25 = FCUU U206-25 = FCUU
A(9) U203-28 = A8PO U205-24 = A8PO U206-24 = A8PO
A(10) U203-27 = A4P1 U205-21 = A4P1 U206-21 = A4P1
A(11) U203-26 = C7U7 U205-23 = C7U7 U206-23 = C7U7
A(12) U203-25 = 948P U205-2 = 948P U206-2 = 948P
A(13) U203-24 = 9H46 U205-26 = 9H46
A(14) U203-23 = 43CP U205-27 = 43CP
A(15) U203-22 = 8A6O U205-1 = 8A60
D(0) U203-37 = C22U U205-11 = C22U U206-11 = C22U
D(1) U203-36 = 418H U205-12 = 418H U206-12 = 418H
D(2) U203-35 = 8795 U205-13 = 8795 U206-13 = 8795
D(3) U203-34 = 6953 U205-15 = 6953 U206-15 = 6953
D(4) U203-33 = 9O7A U205-16 = 9O7A U206-16 = 9O7A
D(5) U203-32 = 5F5P U205-17 = 5F5P U206-17 = 5F5P
D(6) U203-31 = C65F U205-18 = C65F U206-18 = C65F
D(7) U203-30 = P43U U205-19 = P43U U206-19 = P43U
SER_IN U203-11 = 2C34
SER_OUT U203-12 = unstable
R/W U203-38 = 97F2 U206-27 = 97F2
CE U205-20 = 75A3
CE1 U206-22 = 437U U206-20 = U4U3
U207-3 = 567U U215-4 = 567U U217-3 = 8A6O
U207-4 = 15OO U215-5 = 36HF U217-4 = 43CP
U207-8 = E clock U215-6 = U4U3 U217-5 = C762
U207-9 = E clock U217-6 = 75A3
U207-12 = 36HF U217-8 = 567UP
U207-13 = 75A3 U217-9 = 948P
U217-10 = C7U7
U217-11 = A4P1