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TROUBLESHOOTING GUIDE (Touch Control models)
(B) Partial segments missing.
9. Display obviously jumps in time while counting down or up.
timer.
1. Clock set cannot be programmed at all.
Some pads have no continuity
Defective membrane switch
Defective DPC
3. Display indicates a number or figure different from one touched.
Everythings works as specified
Defective membrane switch
Still have trouble
Defective DPC
Check continuity of membrane
switch with clock pad tapped.
(See Fig. 32 on page 19.)
2. Some inputs cannot be programmed.
Check continuity of membrane
switch (Refer to page 19 for the
test procedures of membrane
Switch)
Replace membrane switch and
recheck
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