As
the sound file
ROM
test proceeds, the
LCD
will show:
TESTING SOUND BLOCK C
LOOPING
ON
TEST (if selected)
If LOOP ON TEST is selected, the test will repeat until
an
error is detected or
SELECT
is pressed and held until the last chip
has been tested. After exiting from the
Sound Block C test, or after
responding
NO to the Sound Block C test, the display will show:
TEST SOUND BLOCK
D?
YES
(to
test Block
D)
NO
(to
go
to
next test)
LOOP
ON
TEST? Press
YES
or
NO
As
the sound file
ROM
test proceeds,
the
LCD
will show:
TESTING SOUND BLOCK D
LOOPING
ON
TEST (if selected)
If LOOP ON TEST is selected, the test will repeat until
an
error is detected or
SELECT
is pressed and held until the last chip
has been tested.
The
daughter board Sound Block A
ROM
component numbers are:
U26, U2, U5,
US,
U11,
U2S,
U14, U17, U20 and U23
The
daughter board Sound Block B
ROM
component numbers are:
U1, U4, U7, U10, U13, U16, U19, U22, U25
and
U27.
EXTERNAL CARTRIDGE SOUND FILE
ROM
(K250 only)
This test should not be used. The external cartridge has
diagnostics
in
the K250 software.
Kurzweil 250 Service Manual, Chapter 4
4·52
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