Sharp ER-1910 Service Manual page 10

2) Test No.2: Keyboard
G@) Key operation
02 +[T]o :
x "KM x*K , xX
a
Sum check data Test command
(1) Enter the test command in succession to the sum check
data of the model.
ER-1910— 548
ER-1920—> 916
Mu
=a fy
Mono51 a
foe
Li
rig t
i ER-2385-> 815
it
_
ER-2395 — 1062
or [CAAT |
| or
*(See Note "Sum check data")
(2) Next, push every key on the keyboard except for the receipt
_, and journal. keys. |
| When the [TL] or [CA/AT] key is depressed, the termination
~ printout is immediately produced assuming that all keys
have been depressed.
There is no order in which the keys have to be depressed.
[Keyboard position code of model vs. key to be depressed]
[All key position code] |
ER- 2395
[ER-1920]
[ER-2385]
[ER-2395]
Fig. 7-5
@ Description eee re e e
Until the depression of the [TL] or [CA/AT] key, the sum of key
position codes is compared with the sum check data, except
for the [TL] or [CA/AT] key. |
@ Termination = ree eon
The test terminates with the depression of the [TL] or [CA/AT]
key and the termination printout is produced. |
Termination printout 02
Termination printout with error
NOTE: Sum check data
The sum check data shown in the example is based on the
standard key layout for the each model.
If the machine has a key layout other than the standard
layout, the sum check must be calculated by adding all the
_key position codes to be depressed, then use the sum as
its sum check data. (Refer to Fig. 7-1)