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OM-842 Page 40
6. If the Left/Decrease push button is not pressed in time,
or if the push button is not working correctly, the follow-
ing displays appear:
ERROR LEFT BUTTON
I S NOT WORK I NG
PLEASE CORRECT ERROR
BEFORE CONT I NU I NG
WI TH THE DI AGNOST IC
TEST PROGRAM
If the Left/Decrease push button is not working correct-
ly, replace the push button.
7. When the Left/Decrease push button tests okay, the
diagnostics program tests the Parameter Select push
button. The display shows:
PLEASE PUSH
PARAMETER SELECT
8. When this display appears, the control unit waits nine
seconds for the Parameter Select push button to be
pressed. If this is done in time and the push button is
working correctly, the display shows:
PARAMETER SELECT
IS WORKING PROPERLY
If the Parameter Select push button tests okay, go to
Step 10.
9. If the Parameter Select push button is not pressed in
time, or if the push button is not working correctly, the
following displays appear:
ERROR PARAMETER
SELECT NOT WORK I NG
PLEASE CORRECT ERROR
BEFORE CONT I NU I NG
WI TH THE DI AGNOST IC
TEST PROGRAM
If the Parameter Select push button is not working cor-
rectly, replace the push button.
10. When the Parameter Select push button tests okay, the
repeating test displays appear.
C. Repeating Test Displays
1. When the RAM memory and programming push but-
tons test okay, the repeating test displays appear as
follows:
* SYNCROWAVE 35 1 *
DIAGNOSTIC PROGRAM
USE R I GHT / I NC OR
LEFT /DEC TO SELECT
THE FUNCT I ON
TO TEST
PARAMETER SELECT TO
BEGIN / END THE TEST
2. The remaining diagnostic tests can be accessed from
these displays. This is done by pressing either the
Right/Increase or Left/Decrease push buttons. The
tests are presented in the following subsections in the
order they would follow if the Right/Increase push but-
ton was repeatedly pressed. The Left/Decrease push
button would access the tests in the opposite order.
When a test is accessed and the Parameter Select
push button is not pressed to begin the test, the repeat-
ing test displays are shown.
D. Program/Run/Reset Keyed Switch Tests
This procedure tests the Run and Program positions of the
Program/Run/Reset keyed switch.
1. When the repeating test displays are shown (see Sec-
tion 7-2C), press Right/Increase once. The display
shows:
KEYED SWI TCH
TEST
2. Press Parameter Select to begin the test. The display
shows:
PLEASE PUT KEY I N
RUN POS I T I ON
3. When this display appears, the control unit waits three
seconds for the keyed switch to be placed in the Run