Philips SPENDEX 40 Maintenance Manual page 52

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NATO CONFIDENTIAL
SPENDEX 40 UA 8251/00 AND /Ol
LIMITED MAINTENANCE MANUAL
6 . 3 . 7 T i m e r t e s t
In the timer test substate it is possible to test timer short, timer
long and the software timer.
Actions LED
Display
Remarks
Start conditions:
- Apparatus on hook
"TESTMODE"
Apparatus in
test wait state.
1. Key in test code 6.
2. Press key 1.
3. Press key 2.
4. Press key 3.
5. Press P key.
"TIM TEST"
"TMSH xx"
"TMLO yy"
"TMSW xx"
"TESTMODE"
Apparatus in
t i m e r t e s t
substate.
Timer short is
t e s t e d . I t
functions as a
seconds counter.
Timer long is
tested.
The software
timer is tested.
It functions as a
seconds counter.
Apparatus back
to test wait
s t a t e .
x x - c o u n t e r r e a d i n g ( c o u n t e r m u s t r u n f r o m 0 0 t o 5 9 i n
exactly 1 minute).
y y = c o u n t e r r e a d i n g ( c o u n t e r m u s t r u n f r o m 0 0 t o 5 9 i n
approx. 65 seconds).
Timer test - fault finding table
F a i l u r e
Suspected module
- During the testing of 1 or more
timers the counter reading in the
display changes too fast or does
not change at all.
• Timing board
9922 154 13431
NATO CONFIDENTIAL
6-13