HP 3562A Service Manual page 374

MODE L 3 S62A
9 . Press the l i ne switch o n and the H P 3S62A keys as fol lows:
SPC l
. . . . . . S E RV I C
FCTN
I f this test f a i l s, start tro u b l e s hooti ng with the A 9 FFT (go to 8-1 3).
10. P ress the l i ne switch off.
1 1 . Replace the AS DGTL FL TR asse m b ly.
1 2 . Press the l i ne switch on and the H P 3S62A keys as fol lows:
SPCl
. . . . . . S E RV I C
FCTN
I f this test fails, start tro u b l eshooting with the AS D G T L F LTR (go to 8-9).
1 3 . If the cause of the fai l u re has not been found, go to paragraph 7-1 0, "Control L i n e
Test".
C. Perform this proced u re (steps 1 through 20) if the L E D s pass seq uence does not o c c u r,
A2 DS1 is on, or the i nstrument does not d is p l ay the special function m e n u when
S P C L FCTN is pressed:
1 . Press the l i ne switch off.
Re.m.m/-R-iheJ).o.ttO- IXI
4. Rem ove the fo l l owing assembl ies:
T E ST . . . . . . T E ST
PROC
T E ST . . . . . . TEST
PROC
A1 D igital Sou rce
A3 P rogram ROM
A4 Local Osc i l l ator
AS D igital Fi lter
A6 D igital Fi lter Control ler
A7 FPP
A8 G lobal RAM/D isp l ay
A9 FFT
. . . . . . T E ST
F FT . . . . . . F FT
. . . . . . T E ST
D FA
. . . . . . F I LT E R
FAU LT I SO LAT I O N
F U N CT I O N
T E ST
7-1 1