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MDE-4334C Atlas Start-up and Service Manual · April 2008
Electronic and Electrical Components
Atlas 8800 Parts
Figure 6-25: T20092 Atlas 8800 Pump Controller
CR-2
Blink = Tramsmitting Data
CR-4
Blink = Receiving Data
CR-3
ON = CPU Running
CR-1
ON = Two Wire Reversed
JP-1
Jumper on at Power Up = Master Reset
PCA Connections and Cables
Connector #
via Cable
to Assembly
at Connector #
P201 (10-pin)
N/A
N/A
N/A
P202 (13-pin)
N/A
N/A
N/A
P203 (10-pin)
R19951-G1
T17549-G1
P901A (10)
P204 (34-pin)
T17768-G1
T17701-G1, Standard LCD Display
P801 (34) (Side A) (2
places) and (Side B)
(2places)
P205 (16-pin)
R19952-G1
T18994-G1
P305 (16)
P206 (5-pin)
R19939-G1
T18994-G1
P306 (5)
P207 (10-pin)
R19951-G1
T18994-G1
P307 (10)
P208 (3-pin)
R20412-G3
J402 Field Wiring
P402A (2)
N/A P402 (3)
The PCA contains a firmware chip that holds base instructions for the operation of the unit.
LEDs are provided to alert the technician during diagnostics, regarding POS problems,
processor function, or reversed polarity of the two-wire system feed wires.
The board re14 VDC from the Hydraulic Interface PCA. Customer programmable and
5-button preset as well as the Manager Keypad (except for ATC) are connected directly to this
PCA. It su5 VDC to the Hydraulic Interface PCA.