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Sharp ZL-6500 Service Manual page 12

Diagnostic p-rom manual
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ZL— 6500
Key operation
Display
Printout
& The state of the RS232C
interface test dip switch
and the levei of the DRA, CIA, ORB, and CIB
terminals are continuously displayed. They are
displayed in the same manner as the RS232C
Used to test action of the dip switch and DRA,
CIA, DRB, and CIB tines.
The test will be executed continuously until
the
or
key is depressed.
® RAM
cartridge read test
Press the
|B| key.
| RAM CARTRIDGE
READ Test
|
RAM CARTRIDGE
READ TEST
The RAM
cartridge read test is conducted. After
the completion
of the test with the [8] key, data
of the specific pattern are retained in the RAM
cartridge. In this test, any change in the data
pattern is tested.
Used to test the data backup circuitry in the
RAM
cartridge. After the completion
of the test
with the
key, the RAM
cartridge has to be
removed and inserted once again. Then, the
depression of the [B] will cheek for affected
data and erased data.
BANK 0 CHECK OK
RAM CARTRIDGE
ERROR
(When 8KB used)
LNG . MODE JUMPER
( XXX )
@
Setting status of the jumper pad for
switching EXT K/B specifications by
country
is printed.
Either U.S.A., GERMANY,
FRANCE,
U.K., or JAPAN is shown in (
hy
PRINTER
TEST
CEU.
START
PRINTER TEST (EU.) START
e
Regardless of which jumper pad for
switching EXT
K/B specifications by
country
is used, characters including
alphabetic letters are printed.
SEERSORSEESRART
Ae eeREE
HAHHHHHHHAHHHHHAHAHHHHAHH
LOU,
Br mG reas
o>
LESS.
S-tS
+ er
Se
eT
LAE
oP pgs.
uae Be
Sal Death
|
Fae
ToSas
st
ABCTIEF GH I TK
NOR
Fes
TOL hel,
CMI!
ab
ae
Fa
Aha Gk
Lroresa Pe
Se
a Le a
S245
a
LS
PRINTER
TEST
END

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