Gasboy Electric Keytrol - Manual (Page 35)

Maintenance and Troubleshooting
03/28/03 6-3
POWER SUPPLY TRANSFORMER
For 115 VAC Units, P/N 0M0008
1.
The output of the power transformer should be 24 VAC (50-60 Hz) + 5 VAC for 115 VAC line.
If no voltage is present, check on primary side for 115 VAC. If 115 VAC is present at the
primary, but no voltage appears at the secondary, the transformer is defective. Replace
transformer.
2.
To replace transformer, remove all counter modules and bottom bracket. Remove bolts and
cut wires after marking or identifying leads.
3.
Strip and splice leads with solder and tape properly.
4.
Remount with the two bolts.
5.
Reinstall bottom bracket and counter modules.
6.
Check for proper operation.
For 230 VAC Units, P/N 0M0055
1.
The output of the power transformer should be 24 VAC (50-60 Hz) + 5 VAC for 230 VAC line.
If no voltage is present, check on primary side for 230 VAC. If 230 VAC is present at the
primary, but no voltage appears at the secondary, the transformer is defective. Replace
transformer.
2.
To replace transformer, remove all counter modules and bottom bracket. Remove bolts and
cut wires after marking or identifying leads.
3.
Strip and splice leads with solder and tape properly.
4.
Remount with the two bolts.
5.
Reinstall bottom bracket and counter modules.
6.
Check for proper operation.
COUNTER OR TOTALIZER, P/N 0M0010
1.
If any one counter does not function properly, when all other counters on that same module
strip do, then the trouble is in the counter or keyswitch. To eliminate the keyswitch as the
source of error, jumper from the top turret terminal (with a red lead C 24 VDC) to the proper
turret terminal of the counter under question (white lead) and operate pulser. If the counter
functions, replace keyswitch. If keyswitch is not defective, replace counter.
2. Counter removal. (Record reading for inventory).
l Remove 4 bolts holding printed circuit board (PCB) to frame.
l Remove two bolts holding the counter to the PCB and carefully swing PCB with counters
away from frame. CAUTION! The two counter bolts are metric threads. Do not lose
or replace with standard screws.
l Unsolder the two leads from the turret terminals.