HP 3562A Service Manual page 400

FAU LT I SOLAT I O N
Test
Location
A8 U306-8
A 8 U608-1 1
A8 U 608-1 2
A8 U 608-1 4
A8 U 608-1 6
A8 U608-1 7
A8 U608-1 8
A8 US09-7
A8 U S09-1 2
A8 U S09-1 4
A8 U S09-1 6
A8 U 301-8
A 8 U406-8
D. Perform steps 1 · through 6 for each of the fol lowing assembl ies:
1 . P ress the l i n e switch off.
2 . Remove the asse mb ly.
3 . P ress the line switc h on.
4. If the fai l ing control l i ne i n tab le 7-1 1 is now togg l i n g or TTL leve l h igh, start
trou b l eshooti ng with this assembly (go to Section VI I I).
5. Press the l i ne switch off.
6. Repl ace the assem b ly.
Table 7-1 1
Signal
G DS l
G R/GWl
R F D l
MRFPPl
MRDF2 l
M R D F1 l
MR FFTl
M G D F2 l
MGFFTL
M G D F1 l
MG FPPl
B2G DS l
DAVl
A2 System C PU
AS D i gi tal F i l ter
A7 FPP
Control LInes Set #2
I n/Out
A8 Out
Any assembly on the gl obal bus:
A8 Out A2 CPU, AS DGTL Fl T R
A 7 F P P, A 8 RAM
A9 F FT, A1 7 D S P l
A1 7 Out A8 RAM, A1 7 DSPl
A7 Out A8 RAM, A7 FPP
AS Out A8 RAM, AS DGTl Fl TR
AS Out A8 RAM, AS DGTl F l TR
A9 Out A8 RAM, A9 FFT
A8 O u t
A8 RAM, AS DGTl Fl TR
A 8 O u t A8 RAM, A9 FFT
A 8 Out A8 RAM, AS DGTl Fl TR
A8 O u t A8 RAM, A7 FPP
A 8 Out A8 RAM, A1 7 D S P l
AB Out A 8 RAM, A1 7 D S P l
MO D E L 3562A ,
Probable Causes
of Fail u re
7-3 7