HP 4262A Operating And Service Manual page 208

Model 42624
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st
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1710300540 and below,
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t h e Sagmture maiyser fesc boara Sods' G2 2 tratan ssgrmune p r e . g e T toving (oee
for diagnosing digata) sestion, 2. Take oot 23 bom an KON i n Se5t Voar
rofer o Flgure 32 pigical doc dhncomest, TS froa Soeket L .
tia T n g Usine Siene- Sodket 31 (s¢° Sora 11.
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o ot
st anything (it
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1 2 board
5. Tur Inaeresemt off then
back on to reser U3g.
signatares with
respact £a Ko<t pns 0O
through 07 0% tha fest
boara.
o
reing signatares 1t
Toet pine 10" chough 07,
Replace the RON.
2 Cannece 24 pan plug of test
board flaz cible to A23 sacke|
32 {1n place of AZSUIS)
Incorrecs signatarets), re-
v the BN
Kate 1. then troubleshoating o ual vien sota 2.
seriat Tucher 17100340 or delow,
Correct spratums are piven
i Tabi
15 doriat musser of she anit s
U004 or hatow, perforn th
ftiraeld
3. Discomneet tese progran
KDY rom test board
socket 3
Take cut AZ3 baard sud
Insrall aho slgacare
progran ROM n'AZ) secket
T pisee of Aiduter
Section VII
Figure 8-19
Table A. Progrem RON Test Signatures.
Handow
oM | He Pare Mo, | MOS0 | 01 | sz [ o3 foe b5 |os | oo
a23015 | 1818-0423 7a70 89U | Puva [ 196a | 2747 [ 31 | 164A | FalC | Has7
a23016 | 1819-042¢ 7470 206P | 2859 | 16AP | A1 | 55585 | FoRil | 20H6 | 3487
Table B Program ROM Test
Wandow
ROM | P Paze o, | "0
oo | o0 foz | b5 | bs{os|os | 07
A23UL6 | 04262-85002 | 8ps4
33Us [ 88Hr | s0aP | opac | pso2 [ F3up | scer | ps3g
A25017 | 04262-35003 | aps4
HA9 | assu | 222¢ § 5sF0 | sosc | acoa | ssmo | ases
425018 | 04262-85004 8054
8067 | ure? | FUFS [ 6106 | 1esu | rauc | 2uou)| 7rsu
[a23019 | 04262-85005 8psa
2629 | ussa [ Hpoc |ussa | 1Fuo | 7570 | 3643 | 2057
Table C. Sagnature Progran ROM Test Signaturos
Window
ROM [ HP Part No, ltest osv)
# Lo [ [ [ 5 w]7]
- | 04252-85008 =) Jezt ais T ssuz | win | carr [ e [ aows | avro |
Signoture Anslyzer Sevcngs:
(Table #)
START 7 Teat baaed START/OTOR pam 2
0P Test START/STOP pin 2
oK oot bered it i
(Tedles 3 and ©)
START /™ Test boand START/STOP pan |
CLOCK_Tost Baard
%
STop 7 Test powd TSI pan 3
ROCE pi
Roto 1. 4pply Tabls A or 8 depending wpon
nstTiment serial munl
Serial Numher 1739J00341 and
above: Table A.
Serial Number 1710J00340 and
clow: 'Table B.
hgure 8-19. Digital Section 'Troubleshooting Procedures.
Flow Diagram A. Primary Diagnostic Flow Diagram.
Flow Diagram B. Progmam ROM Disgnosm: Flow Diagram,
8-36