68
Part No. 920525 Rev A
June 2001
See board layouts in Section 9 for for identification and location of connector assignments and LED indicators.
Table 6-2 SYMPTOMS AND SOLUTIONS
Symptom
Probable Cause
Corrective Action
Sale and Unit Price
Displays are out
1
No AC power to dispenser
Check control power circuit breaker.
Check check for AC input voltage at J3 on Relay Board.
If not present check in J-box. If not present in J-box, problem
is in site wiring. If present in J-box, problem is in internal dis-
penser wiring.
Check LED indicators on computer for DC power and "Heart-
beat" (see board layout for LEDs). If all are On, see Proba-
ble Cause 6 and 7. If all not On, see Probable Cause 5.
2
No DC power to computer
All LEDs should be On. DS6 is 24v input LED. Check for 24
VDC input at Computer J1.
If present, see Probable Cause 7.
If not present, check at DC Distr Board J4 output, fuse F1,
and J1 input. If present at J1, see Probable Cause 3.
If not present at J1, check at Power Supply Boad J2 output,
J1 input. If present at J1, see Probably Cause 4.
If not present at J1, see Probable Cause 5.
3
Defective 24V DC Distribution
board
Replace fuse F1 or board as necessary.
4
Defectice Power Supply board
Replace board
5
Defective Relay board
Check fuse F1 on Relay board. Replace board if fuse is bad.
6
Defective display
Replace board
7
Defective computer
Replace board
Summary of Contents for 3/VISTA series
Page 1: ...S E R V IC E 3 Vista Series Blending and Non Blending Dispensers ...
Page 3: ...June 2001 Part No 920525 Rev A 3 Vista Series Blending and Non Blending Dispensers Service ...
Page 4: ...Part No 920525 Rev A June 2001 ...
Page 13: ...9 June 2001 Part No 920525 Rev A 3 BOARD LAYOUTS INDICATORS AND PINOUTS ...
Page 27: ...23 June 2001 Part No 920525 Rev A FIGURE 3 1 COMPUTER BOARD ...
Page 28: ...24 Part No 920525 Rev A June 2001 FIGURE 3 2 ISB BOARD ASSY ...
Page 29: ...25 June 2001 Part No 920525 Rev A FIGURE 3 3 RELAY BOARD ...
Page 30: ...26 Part No 920525 Rev A June 2001 FIGURE 3 4 24VOLT DIST BOARD ...
Page 31: ...27 June 2001 Part No 920525 Rev A FIGURE 3 5 WAYNE VAC CONTROL BOARD ...
Page 32: ...28 Part No 920525 Rev A June 2001 FIGURE 3 6 DUAL CAT BOARD ...
Page 33: ...29 June 2001 Part No 920525 Rev A ...
Page 34: ...30 Part No 920525 Rev A June 2001 ...
Page 36: ...32 Part No 920525 Rev A June 2001 ...
Page 44: ...40 Part No 920525 Rev A June 2001 ...
Page 74: ...70 Part No 920525 Rev A June 2001 ...
Page 75: ...71 June 2001 Part No 920525 Rev A 8 PROCEDURES FOR UPLOADING AND DOWNLOADING FILES ...
