17
February 1997
Part No. 920160 Rev A
3.4.
COMPUTER ASSEMBLY, continued
FIGURE 3-2. COMPUTER AND SOLENOID DRIVE BOARD (BLENDER).
Blender Solenoid Drive
Boards also contain two LED’s which indicate the state of communications to the computer and to the valves.
SOLENOID DRIVE BOARD CONNECTOR DESCRIPTIONS
J1 --Relay Select (There is also a J1 Located on the
computer; it is the data connector for both sides.)
J2 --Pulser Select
J3 --Porportional Valve Control 24 VDC Output
J4 --Porportional Valve Power 24 VDC Input
DS1-Valve Enable
DS2-MPU Activity
FUSES
F1 -- Relay Selects (AC Line Voltage)
F2 -- Porportional Valves (+24 VDC)
COMPUTER CONNECTOR DESCRIPTIONS
J1 -- Data Loop Both Sides
J3 -- AC Input
J4 -- Displays Side-1
J5 -- Displays Side-2
J6 -- Provides For RAM Clear
J8 -- (Not Shown) AC Output to Solenoid Drive Board
J9 -- Nozzle Switch and Pulser Control Side-1
J10--Nozzle Switch and Pulser Control Side-2
J11--Nozzle Switches Both Sides
J13--Annunciator Connection Side 1
J14--Annunciator Connection Side 2
JP1 --
JP2 & JP3 -- Shunts Located Near Edge of Board for
Blender and Uni-Hose.
Shunts Located Toward Inside of
Board for MGD's.
JP4 --
FUSES
F1--Fuses the input to the 5 VDC regulator (LCD Displays)
F3--Fuses the AC input to the computer
TD00360-A
J11
J1
J10
J9
J1
J3
J4
J5
JP1
COMPUTER BOARD
SOLENOID DRIVE BOARD
J6
JP2
and
JP3
J13
J14
F1
F3
J3
CAP
DS1
F1
JP4
J
2
DS2
MOUNTING SCREWS (4)
F2
J
4
Summary of Contents for Dresser Vista 1 Series
Page 1: ...1 Vista Series Blending and Non Blending Remote Dispensers SERVICE ...
Page 4: ...Part No 920160 Rev A February 1997 ...
Page 10: ...viii Part No 920160 Rev A February 1997 ...
Page 12: ...2 Part No 920160 Rev A February 1997 ...
Page 22: ...12 Part No 920160 Rev A February 1997 ...
Page 38: ...28 Part No 920160 Rev A February 1997 ...
Page 62: ...52 Part No 920160 Rev A February 1997 ...
Page 76: ...66 Part No 920160 Rev A February 1997 FIGURE 7 8 NOZZLE BOOT ASSEMBLY LIFT TO START ...
Page 77: ...67 February 1997 Part No 920160 Rev A FIGURE 7 9 NOZZLE BOOT ASSEMBLY PUSH TO START ...
Page 83: ...73 February 1997 Part No 920160 Rev A APPENDIX A TROUBLESHOOTING FLOWCHARTS ...
Page 110: ...100 Part No 920160 Rev A February 1997 ...
Page 111: ...101 February 1997 Part No 920160 Rev A APPENDIX B SERVICE INFORMATION AND CONNECTOR PIN OUTS ...
Page 134: ...124 Part No 920160 Rev A February 1997 ...
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